core: update translations

21 files changed, 1369 insertions, 827 deletions

diff --git a/doc/de/includes/autogen_user_commands.de.adoc b/doc/de/includes/autogen_user_commands.de.adoc
index 83d06bf40..b73eae4fe 100644
--- a/doc/de/includes/autogen_user_commands.de.adoc
+++ b/doc/de/includes/autogen_user_commands.de.adoc
@@ -1373,130 +1373,133 @@ infolists: zeigt Information über die Infolists an
 /eval  [-n|-s] [-d] <expression>
        [-n] [-d [-d]] -c <expression1> <operator> <expression2>
 
-        -n: gibt das Ergebnis aus, ohne dass dieses in den Buffer gesendet wird (debug Modus)
-        -s: teilt Ausdrücke, bevor sie evaluiert werden (mehrere Befehle können durch Semikolon getrennt werden)
-        -d: eine Debug-Ausgabe nach Auswertung anzeigen (Nutzung von zwei -d: ausführliche Debug-Ausgabe)
-        -c: Auswertung als Bedingung: nutzt Operatoren und runde Klammern, Rückgabewert als Boolean-Wert ("0" oder "1")
-expression: Ausdruck welcher verarbeitet werden soll. Variablen im Format ${variable} werden ersetzt (siehe unten); mehrere Befehle werden durch ein Semikolon voneinander getrennt
-  operator: ein logischer oder vergleichender Operand:
-            - logische Operanden:
-                &&  boolean "und"
-                ||  boolean "oder"
-            - vergleichende Operanden:
-                ==  gleich
-                !=  ungleich
-                <=  kleiner oder gleich
-                <   kleiner
-                >=  größer oder gleich
-                >   größer
-                =~  stimmt mit regulärem POSIX Ausdruck überein
-                !~  stimmt NICHT mit regulärem POSIX Ausdruck überein
-                ==*  stimmt mit Maske überein (Platzhalter "*" ist erlaubt)
-                !!*  stimmt mit Maske NICHT überein (Platzhalter "*" ist erlaubt)
-                =*   stimmt mit Maske überein, Groß- und Kleinschreibung wird nicht beachtet (Platzhalter "*" ist erlaubt)
-                !*   stimmt mit Maske NICHT überein, Groß- und Kleinschreibung wird nicht beachtet (Platzhalter "*" ist erlaubt)
-                ==-  ist enthalten, Groß- und Kleinschreibung wird beachtet
-                !!-  ist NICHT enthalten, Groß- und Kleinschreibung wird beachtet
-                =-   ist enthalten, Groß- und Kleinschreibung wird nicht beachtet
-                !-   ist NICHT enthalten, Groß- und Kleinschreibung wird nicht beachtet
-
-Ein Ausdruck gilt als "wahr" sofern das Ergebnis weder NULL, nicht leer und von "0" abweichend ist.
-Für einen Vergleich werden Fließkommazahlen genutzt, insofern es sich bei beiden Ausdrücken um gültige Zahlen handelt, folgende Formate werden unterstützt:
-  - Integer (Beispiele: 5, -7)
-  - Fließkommazahl (Beispiele: 5.2, -7.5, 2.83e-2)
-  - hexadezimale Zahl (Beispiele: 0xA3, -0xA3)
-Um einen Vergleich zwischen zwei Zeichenketten zu erzwingen, müssen die Ausdrücke in Anführungszeichen gesetzt werden, zum Beispiel:
+        -n: display result without sending it to buffer (debug mode)
+        -s: split expression before evaluating it (many commands can be separated by semicolons)
+        -d: display debug output after evaluation (with two -d: more verbose debug)
+        -c: evaluate as condition: use operators and parentheses, return a boolean value ("0" or "1")
+expression: expression to evaluate, variables with format ${variable} are replaced (see below); many commands can be separated by semicolons
+  operator: a logical or comparison operator:
+            - logical operators:
+                &&   boolean "and"
+                ||   boolean "or"
+            - comparison operators:
+                ==   equal
+                !=   not equal
+                <=   less or equal
+                <    less
+                >=   greater or equal
+                >    greater
+                =~   is matching POSIX extended regex
+                !~   is NOT matching POSIX extended regex
+                ==*  is matching mask, case sensitive (wildcard "*" is allowed)
+                !!*  is NOT matching mask, case sensitive (wildcard "*" is allowed)
+                =*   is matching mask, case insensitive (wildcard "*" is allowed)
+                !*   is NOT matching mask, case insensitive (wildcard "*" is allowed)
+                ==-  is included, case sensitive
+                !!-  is NOT included, case sensitive
+                =-   is included, case insensitive
+                !-   is NOT included, case insensitive
+
+An expression is considered as "true" if it is not NULL, not empty, and different from "0".
+The comparison is made using floating point numbers if the two expressions are valid numbers, with one of the following formats:
+  - integer (examples: 5, -7)
+  - floating point number (examples: 5.2, -7.5, 2.83e-2)
+  - hexadecimal number (examples: 0xA3, -0xA3)
+To force a string comparison, you can add double quotes around each expression, for example:
   50 > 100      ==> 0
   "50" > "100"  ==> 1
 
-Einige Variablen werden im Ausdruck mittels der Formatierung ${variable} ersetzt. Mögliche Variablen sind, nach Reihenfolge ihrer Priorität:
-  1. die Zeichenfolge selbst ohne Auswertung (Format: "raw:xxx")
-  2. eine benutzerdefinierte Variable (Format: "name")
-  3. eine evaluierte Teilzeichenkette (Format: "eval:xxx")
-  4. eine evaluierte Bedingung (Format: "eval_cond:xxx")
-  5. eine Zeichenkette mit Escapesequenzen (Format: "esc:xxx" oder "\xxx")
-  6. eine Zeichenfolge, die in Kleinbuchstaben umgewandelt wird (Format: "lower:xxx")
-  7. eine Zeichenfolge, die in Großbuchstaben umgewandelt wird (Format: "upper:xxx")
-  8. Zeichen, die in einer Zeichenkette nicht dargestellt werden sollen (Format: "hide:Zeichen,Zeichenkette")
-  9. eine Zeichenkette mit einer maximalen Anzahl an Zeichen (Format: "cut:max,suffix,string" oder "cut:+max,suffix,string")
-     oder maximale Anzahl an Zeichen die auf dem Bildschirm angezeigt werden sollen (Format: "cutscr:Max,Suffix,Zeichenkette oder "cutscr:+Max,Suffix,Zeichenkette")
-  10. eine Zeichenkette umkehren (Format: "rev:xxx" oder "revscr:xxx")
-  11. eine Zeichenkette wiederholen (Format: "repeat:Anzahl,Zeichenkette")
-  12. Länge einer Zeichenkette (Format: "length:xxx" oder "lengthscr:xxx")
-  13. Aufteilen einer Zeichenkette (Format: "split:Anzahl,Trennzeichen,Flags,xxx")
-  14. Aufteilen von Shell-Argumenten (Format: "split_shell:Anzahl,xxx")
-  15. eine Farbe (Format: "color:xxx", siehe "Anleitung für API Erweiterung", Funktion "color")
-  16. zum modifizieren (Format: "modifier:name,data,string")
-  17. eine Info (Format: "Info:Name,Argumente", Argumente sind optional)
-  18. eine Basis 16/32/64 kodierte / dekodierte Zeichenfolge (Format: "base_encode:base,xxx" oder "base_decode:base,xxx")
-  19. aktuelles Datum/Uhrzeit (Format: "date" oder "date:format")
-  20. eine Umgebungsvariable (Format: "env:XXX")
-  21. ein Dreifachoperand (Format: "if:Bedingung?Wert_falls_wahr:Wert_falls_unwahr")
-  22. Ergebnis eines Ausdrucks mit Klammern und Operatoren + - * / // % ** (Format: "calc:xxx")
-  23. eine zufällige ganze Zahl (Format: "random:min,max")
-  24. eine übersetzte Zeichenkette (Format: "translate:xxx")
-  25. eine Benutzervariable definieren (Format: "define:Name,Wert")
-  26. eine Option (Format: "file.section.option")
-  27. eine lokale Variable eines Buffers
-  28. ein(e) hdata - Name/Variable (der Wert wird automatisch in eine Zeichenkette konvertiert), standardmäßig wird für "window" und "buffer" das aktuelle Fenster/Buffer verwendet.
-Das Format für hdata kann wie folgt aufgebaut sein:
-  hdata.var1.var2...: startet mit hdata (der Pointer muss bekannt sein) und fragt eine Variable nach der anderen ab (weitere hdata können folgen)
-  hdata[list].var1.var2...: startet hdata mittels einer Liste, zum Beispiel:
-    ${buffer[gui_buffers].full_name}: der vollständige Name des ersten Buffers, in der verknüpften Liste aller Buffer
-    ${plugin[weechat_plugins].name}: Name der ersten Erweiterung, in der verknüpften Liste aller Erweiterungen
-  hdata[pointer].var1.var2...: startet hdata mittels einem Pointer, zum Beispiel:
-    ${buffer[0x1234abcd].full_name}: vollständiger Name eines Buffers und des dazugehörigen Pointers (kann in triggern benutzt werden)
-    ${buffer[my_pointer].full_name}: vollständiger Name des Buffers mit dem entsprechenden Pointernamen (kann in Triggern verwendet werden)
-Die vorhandenen Namen für hdata und Variablen sind in der "Anleitung für API Erweiterung", Bereich "weechat_hdata_get". beschrieben
-
-Beispiele (einfache Zeichenketten):
-  /eval -n ${raw:${info:version}}                ==> ${info:version}
-  /eval -n ${eval_cond:${window.win_width}>100}  ==> 1
-  /eval -n ${info:version}                       ==> 0.4.3
-  /eval -n ${env:HOME}                           ==> /home/user
-  /eval -n ${weechat.look.scroll_amount}         ==> 3
-  /eval -n ${sec.data.password}                  ==> geheim
-  /eval -n ${window}                             ==> 0x2549aa0
-  /eval -n ${window.buffer}                      ==> 0x2549320
-  /eval -n ${window.buffer.full_name}            ==> core.weechat
-  /eval -n ${window.buffer.number}               ==> 1
-  /eval -n ${\t}                                 ==> <tab>
+Some variables are replaced in expression, using the format ${variable}, variable can be, by order of priority:
+  - the string itself without evaluation (format: "raw:xxx")
+  - a user-defined variable (format: "name")
+  - an evaluated sub-string (format: "eval:xxx")
+  - an evaluated condition (format: "eval_cond:xxx")
+  - a string with escaped chars (format: "esc:xxx" or "\xxx")
+  - a string with a range of chars (format: "chars:xxx" or "chars:c1-c2" where "xxx" is one of: "digit", "xdigit", "lower", "upper", "alpha", "alnum")
+  - a string converted to lower case (format: "lower:xxx")
+  - a string converted to upper case (format: "upper:xxx")
+  - a string with chars to hide (format: "hide:char,string")
+  - a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
+     or max chars displayed on screen (format: "cutscr:max,suffix,string" or "cutscr:+max,suffix,string")
+  - a reversed string (format: "rev:xxx" or "revscr:xxx")
+  - a repeated string (format: "repeat:count,string")
+  - length of a string (format: "length:xxx" or "lengthscr:xxx")
+  - split of a string (format: "split:number,separators,flags,xxx")
+  - split of shell argmuents (format: "split_shell:number,xxx")
+  - a color (format: "color:xxx", see "Plugin API reference", function "color")
+  - a modifier (format: "modifier:name,data,string")
+  - an info (format: "info:name,arguments", arguments are optional)
+  - a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
+  - current date/time (format: "date" or "date:format")
+  - an environment variable (format: "env:XXX")
+  - a ternary operator (format: "if:condition?value_if_true:value_if_false")
+  - result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
+  - a random integer number (format: "random:min,max")
+  - a translated string (format: "translate:xxx")
+  - define a user variable (format: "define:name,value")
+  - an option (format: "file.section.option")
+  - a local variable in buffer
+  - a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
+Format for hdata can be one of following:
+  hdata.var1.var2...: start with a hdata (pointer must be known), and ask variables one after one (other hdata can be followed)
+  hdata[list].var1.var2...: start with a hdata using a list/pointer/pointer name, for example:
+    ${buffer[gui_buffers].full_name}: full name of first buffer in linked list of buffers
+    ${plugin[weechat_plugins].name}: name of first plugin in linked list of plugins
+  hdata[pointer].var1.var2...: start with a hdata using a pointer, for example:
+    ${buffer[0x1234abcd].full_name}: full name of the buffer with this pointer (can be used in triggers)
+    ${buffer[my_pointer].full_name}: full name of the buffer with this pointer name (can be used in triggers)
+For name of hdata and variables, please look at "Plugin API reference", function "weechat_hdata_get".
+
+Examples (simple strings):
+  /eval -n ${raw:${info:version}}                 ==> ${info:version}
+  /eval -n ${eval_cond:${window.win_width}>100}   ==> 1
+  /eval -n ${info:version}                        ==> 0.4.3
+  /eval -n ${env:HOME}                            ==> /home/user
+  /eval -n ${weechat.look.scroll_amount}          ==> 3
+  /eval -n ${sec.data.password}                   ==> secret
+  /eval -n ${window}                              ==> 0x2549aa0
+  /eval -n ${window.buffer}                       ==> 0x2549320
+  /eval -n ${window.buffer.full_name}             ==> core.weechat
+  /eval -n ${window.buffer.number}                ==> 1
+  /eval -n ${\t}                                  ==> <tab>
+  /eval -n ${chars:digit}                         ==> 0123456789
+  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST
   /eval -n ${lower:TEST}                          ==> test
   /eval -n ${upper:test}                          ==> TEST
-  /eval -n ${hide:-,${relay.network.password}}   ==> --------
-  /eval -n ${cut:3,+,test}                       ==> tes+
-  /eval -n ${cut:+3,+,test}                      ==> te+
-  /eval -n ${date:%H:%M:%S}                      ==> 07:46:40
-  /eval -n ${if:${info:term_width}>80?big:small} ==> big
-  /eval -n ${rev:Hello}                          ==> olleH
-  /eval -n ${repeat:5,-}                         ==> -----
-  /eval -n ${length:test}                        ==> 4
-  /eval -n ${split:1,,,abc,def,ghi}              ==> abc
-  /eval -n ${split:-1,,,abc,def,ghi}             ==> ghi
-  /eval -n ${split:count,,,abc,def,ghi}          ==> 3
-  /eval -n ${split:random,,,abc,def,ghi}         ==> def
-  /eval -n ${split_shell:1,"arg 1" arg2}         ==> arg 1
-  /eval -n ${split_shell:-1,"arg 1" arg2}        ==> arg2
-  /eval -n ${split_shell:count,"arg 1" arg2}     ==> 2
-  /eval -n ${split_shell:random,"arg 1" arg2}    ==> arg2
-  /eval -n ${calc:(5+2)*3}                       ==> 21
-  /eval -n ${random:0,10}                        ==> 3
-  /eval -n ${base_encode:64,test}                ==> dGVzdA==
-  /eval -n ${base_decode:64,dGVzdA==}            ==> test
-  /eval -n ${translate:Plugin}                   ==> Erweiterung
+  /eval -n ${hide:-,${relay.network.password}}    ==> --------
+  /eval -n ${cut:3,+,test}                        ==> tes+
+  /eval -n ${cut:+3,+,test}                       ==> te+
+  /eval -n ${date:%H:%M:%S}                       ==> 07:46:40
+  /eval -n ${if:${info:term_width}>80?big:small}  ==> big
+  /eval -n ${rev:Hello}                           ==> olleH
+  /eval -n ${repeat:5,-}                          ==> -----
+  /eval -n ${length:test}                         ==> 4
+  /eval -n ${split:1,,,abc,def,ghi}               ==> abc
+  /eval -n ${split:-1,,,abc,def,ghi}              ==> ghi
+  /eval -n ${split:count,,,abc,def,ghi}           ==> 3
+  /eval -n ${split:random,,,abc,def,ghi}          ==> def
+  /eval -n ${split_shell:1,"arg 1" arg2}          ==> arg 1
+  /eval -n ${split_shell:-1,"arg 1" arg2}         ==> arg2
+  /eval -n ${split_shell:count,"arg 1" arg2}      ==> 2
+  /eval -n ${split_shell:random,"arg 1" arg2}     ==> arg2
+  /eval -n ${calc:(5+2)*3}                        ==> 21
+  /eval -n ${random:0,10}                         ==> 3
+  /eval -n ${base_encode:64,test}                 ==> dGVzdA==
+  /eval -n ${base_decode:64,dGVzdA==}             ==> test
+  /eval -n ${translate:Plugin}                    ==> Extension
   /eval -n ${define:len,${calc:5+3}}${len}x${len} ==> 8x8
 
-Beispiele (Bedingungen):
-  /eval -n -c ${window.buffer.number} > 2  ==> 0
-  /eval -n -c ${window.win_width} > 100    ==> 1
-  /eval -n -c (8 > 12) || (5 > 2)          ==> 1
-  /eval -n -c (8 > 12) && (5 > 2)          ==> 0
-  /eval -n -c abcd =~ ^ABC                 ==> 1
-  /eval -n -c abcd =~ (?-i)^ABC            ==> 0
-  /eval -n -c abcd =~ (?-i)^abc            ==> 1
-  /eval -n -c abcd !~ abc                  ==> 0
-  /eval -n -c abcd =* a*d                  ==> 1
-  /eval -n -c abcd =- bc                   ==> 1
+Examples (conditions):
+  /eval -n -c ${window.buffer.number} > 2 ==> 0
+  /eval -n -c ${window.win_width} > 100   ==> 1
+  /eval -n -c (8 > 12) || (5 > 2)         ==> 1
+  /eval -n -c (8 > 12) && (5 > 2)         ==> 0
+  /eval -n -c abcd =~ ^ABC                ==> 1
+  /eval -n -c abcd =~ (?-i)^ABC           ==> 0
+  /eval -n -c abcd =~ (?-i)^abc           ==> 1
+  /eval -n -c abcd !~ abc                 ==> 0
+  /eval -n -c abcd =* a*d                 ==> 1
+  /eval -n -c abcd =- bc                  ==> 1
 ----
 
 [[command_weechat_filter]]
diff --git a/doc/en/includes/autogen_user_commands.en.adoc b/doc/en/includes/autogen_user_commands.en.adoc
index a62bd4ffa..b12fad0da 100644
--- a/doc/en/includes/autogen_user_commands.en.adoc
+++ b/doc/en/includes/autogen_user_commands.en.adoc
@@ -1410,35 +1410,36 @@ To force a string comparison, you can add double quotes around each expression,
   "50" > "100"  ==> 1
 
 Some variables are replaced in expression, using the format ${variable}, variable can be, by order of priority:
-  1. the string itself without evaluation (format: "raw:xxx")
-  2. a user-defined variable (format: "name")
-  3. an evaluated sub-string (format: "eval:xxx")
-  4. an evaluated condition (format: "eval_cond:xxx")
-  5. a string with escaped chars (format: "esc:xxx" or "\xxx")
-  6. a string converted to lower case (format: "lower:xxx")
-  7. a string converted to upper case (format: "upper:xxx")
-  8. a string with chars to hide (format: "hide:char,string")
-  9. a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
+  - the string itself without evaluation (format: "raw:xxx")
+  - a user-defined variable (format: "name")
+  - an evaluated sub-string (format: "eval:xxx")
+  - an evaluated condition (format: "eval_cond:xxx")
+  - a string with escaped chars (format: "esc:xxx" or "\xxx")
+  - a string with a range of chars (format: "chars:xxx" or "chars:c1-c2" where "xxx" is one of: "digit", "xdigit", "lower", "upper", "alpha", "alnum")
+  - a string converted to lower case (format: "lower:xxx")
+  - a string converted to upper case (format: "upper:xxx")
+  - a string with chars to hide (format: "hide:char,string")
+  - a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
      or max chars displayed on screen (format: "cutscr:max,suffix,string" or "cutscr:+max,suffix,string")
-  10. a reversed string (format: "rev:xxx" or "revscr:xxx")
-  11. a repeated string (format: "repeat:count,string")
-  12. length of a string (format: "length:xxx" or "lengthscr:xxx")
-  13. split of a string (format: "split:number,separators,flags,xxx")
-  14. split of shell argmuents (format: "split_shell:number,xxx")
-  15. a color (format: "color:xxx", see "Plugin API reference", function "color")
-  16. a modifier (format: "modifier:name,data,string")
-  17. an info (format: "info:name,arguments", arguments are optional)
-  18. a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
-  19. current date/time (format: "date" or "date:format")
-  20. an environment variable (format: "env:XXX")
-  21. a ternary operator (format: "if:condition?value_if_true:value_if_false")
-  22. result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
-  23. a random integer number (format: "random:min,max")
-  24. a translated string (format: "translate:xxx")
-  25. define a user variable (format: "define:name,value")
-  26. an option (format: "file.section.option")
-  27. a local variable in buffer
-  28. a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
+  - a reversed string (format: "rev:xxx" or "revscr:xxx")
+  - a repeated string (format: "repeat:count,string")
+  - length of a string (format: "length:xxx" or "lengthscr:xxx")
+  - split of a string (format: "split:number,separators,flags,xxx")
+  - split of shell argmuents (format: "split_shell:number,xxx")
+  - a color (format: "color:xxx", see "Plugin API reference", function "color")
+  - a modifier (format: "modifier:name,data,string")
+  - an info (format: "info:name,arguments", arguments are optional)
+  - a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
+  - current date/time (format: "date" or "date:format")
+  - an environment variable (format: "env:XXX")
+  - a ternary operator (format: "if:condition?value_if_true:value_if_false")
+  - result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
+  - a random integer number (format: "random:min,max")
+  - a translated string (format: "translate:xxx")
+  - define a user variable (format: "define:name,value")
+  - an option (format: "file.section.option")
+  - a local variable in buffer
+  - a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
 Format for hdata can be one of following:
   hdata.var1.var2...: start with a hdata (pointer must be known), and ask variables one after one (other hdata can be followed)
   hdata[list].var1.var2...: start with a hdata using a list/pointer/pointer name, for example:
@@ -1461,6 +1462,8 @@ Examples (simple strings):
   /eval -n ${window.buffer.full_name}             ==> core.weechat
   /eval -n ${window.buffer.number}                ==> 1
   /eval -n ${\t}                                  ==> <tab>
+  /eval -n ${chars:digit}                         ==> 0123456789
+  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST
   /eval -n ${lower:TEST}                          ==> test
   /eval -n ${upper:test}                          ==> TEST
   /eval -n ${hide:-,${relay.network.password}}    ==> --------
diff --git a/doc/fr/includes/autogen_user_commands.fr.adoc b/doc/fr/includes/autogen_user_commands.fr.adoc
index 80a20b74b..b120795e5 100644
--- a/doc/fr/includes/autogen_user_commands.fr.adoc
+++ b/doc/fr/includes/autogen_user_commands.fr.adoc
@@ -1410,35 +1410,36 @@ Pour forcer une comparaison de chaînes, vous pouvez ajouter des guillemets auto
   "50" > "100"  ==> 1
 
 Des variables sont remplacées dans l'expression, en utilisant le format ${variable}, la variable pouvant être, par ordre de priorité :
-  1. la chaîne elle-même sans évaluation (format : "raw:xxx")
-  2. une variable définie par l'utilisateur (format : "nom")
-  3. une sous-chaîne évaluée (format : "eval:xxx")
-  4. une condition évaluée (format : "eval_cond:xxx")
-  5. une chaîne avec les caractères échappés (format : "esc:xxx" ou "\xxx")
-  6. une chaîne convertie en minuscules (format : "lower:xxx")
-  7. une chaîne convertie en majuscules (format : "upper:xxx")
-  8. une chaîne avec des caractères à cacher (format : "hide:caractère,chaîne")
-  9. une chaîne avec un maximum de caractères (format : "cut:max,suffixe,chaîne" ou "cut:+max,suffixe,chaîne")
-     ou un maximum de caractères affichés à l'écran (format : "cutscr:max,suffixe,chaîne" ou "cutscr:+max,suffixe,chaîne")
-  10. une chaîne inversée (format : "rev:xxx" ou "revscr:xxx")
-  11. une chaîne répétée (format : "repeat:nombre,chaîne")
-  12. longueur d'une chaîne (format : "length:xxx" ou "lengthscr:xxx")
-  13. découpage d'une chaîne (format : "split:nombre,séparateurs,flags,xxx")
-  14. découpage de paramètres shell (format : "split_shell:nombre,xxx")
-  15. une couleur (format : "color:xxx", voir la "Référence API extension", fonction "color")
-  16. un modificateur (format : "modifier:nom,données,chaîne")
-  17. une info (format : "info:nom,paramètres", les paramètres sont optionnels)
-  18. une chaîne encodée/decodée en base 16, 32 ou 64 (format : "base_encode:base,xxx" ou "base_decode:base,xxx")
-  19. la date/heure courante (format : "date" ou "date:format")
-  20. une variable d'environnement (format : "env:XXX")
-  21. un opérateur ternaire (format : "if:condition?valeur_si_vrai:valeur_si_faux")
-  22. le résultat d'une expression avec parenthèses et les opérateurs + - * / // % ** (format : "calc:xxx")
-  23. un nombre entier aléatoire (format : "random:min,max")
-  24. une chaîne traduite (format : "translate:xxx")
-  25. déclaration d'une variable utilisateur (format : "define:nom,valeur")
-  26. une option (format : "fichier.section.option")
-  27. une variable locale du tampon
-  28. un hdata/variable (la valeur est automatiquement convertie en chaîne), par défaut "window" et "buffer" pointent vers la fenêtre et le tampon courants.
+  - la chaîne elle-même sans évaluation (format : "raw:xxx")
+  - une variable définie par l'utilisateur (format : "nom")
+  - une sous-chaîne évaluée (format : "eval:xxx")
+  - une condition évaluée (format : "eval_cond:xxx")
+  - une chaîne avec les caractères échappés (format : "esc:xxx" ou "\xxx")
+  - une chaîne avec un intervalle de caractères (format : "chars:xxx" ou "chars:c1-c2")
+  - une chaîne convertie en minuscules (format : "lower:xxx")
+  - une chaîne convertie en majuscules (format : "upper:xxx")
+  - une chaîne avec des caractères à cacher (format : "hide:caractère,chaîne")
+  - une chaîne avec un maximum de caractères (format : "cut:max,suffixe,chaîne" ou "cut:+max,suffixe,chaîne")
+    ou un maximum de caractères affichés à l'écran (format : "cutscr:max,suffixe,chaîne" ou "cutscr:+max,suffixe,chaîne")
+  - une chaîne inversée (format : "rev:xxx" ou "revscr:xxx")
+  - une chaîne répétée (format : "repeat:nombre,chaîne")
+  - longueur d'une chaîne (format : "length:xxx" ou "lengthscr:xxx")
+  - découpage d'une chaîne (format : "split:nombre,séparateurs,flags,xxx")
+  - découpage de paramètres shell (format : "split_shell:nombre,xxx")
+  - une couleur (format : "color:xxx", voir la "Référence API extension", fonction "color")
+  - un modificateur (format : "modifier:nom,données,chaîne")
+  - une info (format : "info:nom,paramètres", les paramètres sont optionnels)
+  - une chaîne encodée/decodée en base 16, 32 ou 64 (format : "base_encode:base,xxx" ou "base_decode:base,xxx")
+  - la date/heure courante (format : "date" ou "date:format")
+  - une variable d'environnement (format : "env:XXX")
+  - un opérateur ternaire (format : "if:condition?valeur_si_vrai:valeur_si_faux")
+  - le résultat d'une expression avec parenthèses et les opérateurs + - * / // % ** (format : "calc:xxx")
+  - un nombre entier aléatoire (format : "random:min,max")
+  - une chaîne traduite (format : "translate:xxx")
+  - déclaration d'une variable utilisateur (format : "define:nom,valeur")
+  - une option (format : "fichier.section.option")
+  - une variable locale du tampon
+  - un hdata/variable (la valeur est automatiquement convertie en chaîne), par défaut "window" et "buffer" pointent vers la fenêtre et le tampon courants.
 Le format du hdata peut être le suivant :
   hdata.var1.var2... : démarrer avec un hdata (le pointeur doit être connu), et demander les variables l'une après l'autre (d'autres hdata peuvent être suivis)
   hdata[liste].var1.var2... : démarrer avec un hdata en utilisant une liste/pointeur/nom de pointeur, par exemple :
@@ -1461,6 +1462,8 @@ Exemples (chaînes simples) :
   /eval -n ${window.buffer.full_name}             ==> core.weechat
   /eval -n ${window.buffer.number}                ==> 1
   /eval -n ${\t}                                  ==> <tab>
+  /eval -n ${chars:digit}                         ==> 0123456789
+  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST
   /eval -n ${lower:TEST}                          ==> test
   /eval -n ${upper:test}                          ==> TEST
   /eval -n ${hide:-,${relay.network.password}}    ==> --------
diff --git a/doc/it/includes/autogen_user_commands.it.adoc b/doc/it/includes/autogen_user_commands.it.adoc
index 69a9152bc..cee8775a3 100644
--- a/doc/it/includes/autogen_user_commands.it.adoc
+++ b/doc/it/includes/autogen_user_commands.it.adoc
@@ -1410,35 +1410,36 @@ To force a string comparison, you can add double quotes around each expression,
   "50" > "100"  ==> 1
 
 Some variables are replaced in expression, using the format ${variable}, variable can be, by order of priority:
-  1. the string itself without evaluation (format: "raw:xxx")
-  2. a user-defined variable (format: "name")
-  3. an evaluated sub-string (format: "eval:xxx")
-  4. an evaluated condition (format: "eval_cond:xxx")
-  5. a string with escaped chars (format: "esc:xxx" or "\xxx")
-  6. a string converted to lower case (format: "lower:xxx")
-  7. a string converted to upper case (format: "upper:xxx")
-  8. a string with chars to hide (format: "hide:char,string")
-  9. a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
+  - the string itself without evaluation (format: "raw:xxx")
+  - a user-defined variable (format: "name")
+  - an evaluated sub-string (format: "eval:xxx")
+  - an evaluated condition (format: "eval_cond:xxx")
+  - a string with escaped chars (format: "esc:xxx" or "\xxx")
+  - a string with a range of chars (format: "chars:xxx" or "chars:c1-c2" where "xxx" is one of: "digit", "xdigit", "lower", "upper", "alpha", "alnum")
+  - a string converted to lower case (format: "lower:xxx")
+  - a string converted to upper case (format: "upper:xxx")
+  - a string with chars to hide (format: "hide:char,string")
+  - a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
      or max chars displayed on screen (format: "cutscr:max,suffix,string" or "cutscr:+max,suffix,string")
-  10. a reversed string (format: "rev:xxx" or "revscr:xxx")
-  11. a repeated string (format: "repeat:count,string")
-  12. length of a string (format: "length:xxx" or "lengthscr:xxx")
-  13. split of a string (format: "split:number,separators,flags,xxx")
-  14. split of shell argmuents (format: "split_shell:number,xxx")
-  15. a color (format: "color:xxx", see "Plugin API reference", function "color")
-  16. a modifier (format: "modifier:name,data,string")
-  17. an info (format: "info:name,arguments", arguments are optional)
-  18. a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
-  19. current date/time (format: "date" or "date:format")
-  20. an environment variable (format: "env:XXX")
-  21. a ternary operator (format: "if:condition?value_if_true:value_if_false")
-  22. result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
-  23. a random integer number (format: "random:min,max")
-  24. a translated string (format: "translate:xxx")
-  25. define a user variable (format: "define:name,value")
-  26. an option (format: "file.section.option")
-  27. a local variable in buffer
-  28. a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
+  - a reversed string (format: "rev:xxx" or "revscr:xxx")
+  - a repeated string (format: "repeat:count,string")
+  - length of a string (format: "length:xxx" or "lengthscr:xxx")
+  - split of a string (format: "split:number,separators,flags,xxx")
+  - split of shell argmuents (format: "split_shell:number,xxx")
+  - a color (format: "color:xxx", see "Plugin API reference", function "color")
+  - a modifier (format: "modifier:name,data,string")
+  - an info (format: "info:name,arguments", arguments are optional)
+  - a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
+  - current date/time (format: "date" or "date:format")
+  - an environment variable (format: "env:XXX")
+  - a ternary operator (format: "if:condition?value_if_true:value_if_false")
+  - result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
+  - a random integer number (format: "random:min,max")
+  - a translated string (format: "translate:xxx")
+  - define a user variable (format: "define:name,value")
+  - an option (format: "file.section.option")
+  - a local variable in buffer
+  - a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
 Format for hdata can be one of following:
   hdata.var1.var2...: start with a hdata (pointer must be known), and ask variables one after one (other hdata can be followed)
   hdata[list].var1.var2...: start with a hdata using a list/pointer/pointer name, for example:
@@ -1461,6 +1462,8 @@ Examples (simple strings):
   /eval -n ${window.buffer.full_name}             ==> core.weechat
   /eval -n ${window.buffer.number}                ==> 1
   /eval -n ${\t}                                  ==> <tab>
+  /eval -n ${chars:digit}                         ==> 0123456789
+  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST
   /eval -n ${lower:TEST}                          ==> test
   /eval -n ${upper:test}                          ==> TEST
   /eval -n ${hide:-,${relay.network.password}}    ==> --------
diff --git a/doc/ja/includes/autogen_user_commands.ja.adoc b/doc/ja/includes/autogen_user_commands.ja.adoc
index d9251f8f0..b5add3232 100644
--- a/doc/ja/includes/autogen_user_commands.ja.adoc
+++ b/doc/ja/includes/autogen_user_commands.ja.adoc
@@ -1410,35 +1410,36 @@ To force a string comparison, you can add double quotes around each expression,
   "50" > "100"  ==> 1
 
 Some variables are replaced in expression, using the format ${variable}, variable can be, by order of priority:
-  1. the string itself without evaluation (format: "raw:xxx")
-  2. a user-defined variable (format: "name")
-  3. an evaluated sub-string (format: "eval:xxx")
-  4. an evaluated condition (format: "eval_cond:xxx")
-  5. a string with escaped chars (format: "esc:xxx" or "\xxx")
-  6. a string converted to lower case (format: "lower:xxx")
-  7. a string converted to upper case (format: "upper:xxx")
-  8. a string with chars to hide (format: "hide:char,string")
-  9. a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
+  - the string itself without evaluation (format: "raw:xxx")
+  - a user-defined variable (format: "name")
+  - an evaluated sub-string (format: "eval:xxx")
+  - an evaluated condition (format: "eval_cond:xxx")
+  - a string with escaped chars (format: "esc:xxx" or "\xxx")
+  - a string with a range of chars (format: "chars:xxx" or "chars:c1-c2" where "xxx" is one of: "digit", "xdigit", "lower", "upper", "alpha", "alnum")
+  - a string converted to lower case (format: "lower:xxx")
+  - a string converted to upper case (format: "upper:xxx")
+  - a string with chars to hide (format: "hide:char,string")
+  - a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
      or max chars displayed on screen (format: "cutscr:max,suffix,string" or "cutscr:+max,suffix,string")
-  10. a reversed string (format: "rev:xxx" or "revscr:xxx")
-  11. a repeated string (format: "repeat:count,string")
-  12. length of a string (format: "length:xxx" or "lengthscr:xxx")
-  13. split of a string (format: "split:number,separators,flags,xxx")
-  14. split of shell argmuents (format: "split_shell:number,xxx")
-  15. a color (format: "color:xxx", see "Plugin API reference", function "color")
-  16. a modifier (format: "modifier:name,data,string")
-  17. an info (format: "info:name,arguments", arguments are optional)
-  18. a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
-  19. current date/time (format: "date" or "date:format")
-  20. an environment variable (format: "env:XXX")
-  21. a ternary operator (format: "if:condition?value_if_true:value_if_false")
-  22. result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
-  23. a random integer number (format: "random:min,max")
-  24. a translated string (format: "translate:xxx")
-  25. define a user variable (format: "define:name,value")
-  26. an option (format: "file.section.option")
-  27. a local variable in buffer
-  28. a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
+  - a reversed string (format: "rev:xxx" or "revscr:xxx")
+  - a repeated string (format: "repeat:count,string")
+  - length of a string (format: "length:xxx" or "lengthscr:xxx")
+  - split of a string (format: "split:number,separators,flags,xxx")
+  - split of shell argmuents (format: "split_shell:number,xxx")
+  - a color (format: "color:xxx", see "Plugin API reference", function "color")
+  - a modifier (format: "modifier:name,data,string")
+  - an info (format: "info:name,arguments", arguments are optional)
+  - a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
+  - current date/time (format: "date" or "date:format")
+  - an environment variable (format: "env:XXX")
+  - a ternary operator (format: "if:condition?value_if_true:value_if_false")
+  - result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
+  - a random integer number (format: "random:min,max")
+  - a translated string (format: "translate:xxx")
+  - define a user variable (format: "define:name,value")
+  - an option (format: "file.section.option")
+  - a local variable in buffer
+  - a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
 Format for hdata can be one of following:
   hdata.var1.var2...: start with a hdata (pointer must be known), and ask variables one after one (other hdata can be followed)
   hdata[list].var1.var2...: start with a hdata using a list/pointer/pointer name, for example:
@@ -1461,6 +1462,8 @@ Examples (simple strings):
   /eval -n ${window.buffer.full_name}             ==> core.weechat
   /eval -n ${window.buffer.number}                ==> 1
   /eval -n ${\t}                                  ==> <tab>
+  /eval -n ${chars:digit}                         ==> 0123456789
+  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST
   /eval -n ${lower:TEST}                          ==> test
   /eval -n ${upper:test}                          ==> TEST
   /eval -n ${hide:-,${relay.network.password}}    ==> --------
diff --git a/doc/pl/includes/autogen_user_commands.pl.adoc b/doc/pl/includes/autogen_user_commands.pl.adoc
index b3c2da237..b3b4d8602 100644
--- a/doc/pl/includes/autogen_user_commands.pl.adoc
+++ b/doc/pl/includes/autogen_user_commands.pl.adoc
@@ -1409,35 +1409,36 @@ To force a string comparison, you can add double quotes around each expression,
   "50" > "100"  ==> 1
 
 Some variables are replaced in expression, using the format ${variable}, variable can be, by order of priority:
-  1. the string itself without evaluation (format: "raw:xxx")
-  2. a user-defined variable (format: "name")
-  3. an evaluated sub-string (format: "eval:xxx")
-  4. an evaluated condition (format: "eval_cond:xxx")
-  5. a string with escaped chars (format: "esc:xxx" or "\xxx")
-  6. a string converted to lower case (format: "lower:xxx")
-  7. a string converted to upper case (format: "upper:xxx")
-  8. a string with chars to hide (format: "hide:char,string")
-  9. a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
+  - the string itself without evaluation (format: "raw:xxx")
+  - a user-defined variable (format: "name")
+  - an evaluated sub-string (format: "eval:xxx")
+  - an evaluated condition (format: "eval_cond:xxx")
+  - a string with escaped chars (format: "esc:xxx" or "\xxx")
+  - a string with a range of chars (format: "chars:xxx" or "chars:c1-c2" where "xxx" is one of: "digit", "xdigit", "lower", "upper", "alpha", "alnum")
+  - a string converted to lower case (format: "lower:xxx")
+  - a string converted to upper case (format: "upper:xxx")
+  - a string with chars to hide (format: "hide:char,string")
+  - a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
      or max chars displayed on screen (format: "cutscr:max,suffix,string" or "cutscr:+max,suffix,string")
-  10. a reversed string (format: "rev:xxx" or "revscr:xxx")
-  11. a repeated string (format: "repeat:count,string")
-  12. length of a string (format: "length:xxx" or "lengthscr:xxx")
-  13. split of a string (format: "split:number,separators,flags,xxx")
-  14. split of shell argmuents (format: "split_shell:number,xxx")
-  15. a color (format: "color:xxx", see "Plugin API reference", function "color")
-  16. a modifier (format: "modifier:name,data,string")
-  17. an info (format: "info:name,arguments", arguments are optional)
-  18. a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
-  19. current date/time (format: "date" or "date:format")
-  20. an environment variable (format: "env:XXX")
-  21. a ternary operator (format: "if:condition?value_if_true:value_if_false")
-  22. result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
-  23. a random integer number (format: "random:min,max")
-  24. a translated string (format: "translate:xxx")
-  25. define a user variable (format: "define:name,value")
-  26. an option (format: "file.section.option")
-  27. a local variable in buffer
-  28. a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
+  - a reversed string (format: "rev:xxx" or "revscr:xxx")
+  - a repeated string (format: "repeat:count,string")
+  - length of a string (format: "length:xxx" or "lengthscr:xxx")
+  - split of a string (format: "split:number,separators,flags,xxx")
+  - split of shell argmuents (format: "split_shell:number,xxx")
+  - a color (format: "color:xxx", see "Plugin API reference", function "color")
+  - a modifier (format: "modifier:name,data,string")
+  - an info (format: "info:name,arguments", arguments are optional)
+  - a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
+  - current date/time (format: "date" or "date:format")
+  - an environment variable (format: "env:XXX")
+  - a ternary operator (format: "if:condition?value_if_true:value_if_false")
+  - result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
+  - a random integer number (format: "random:min,max")
+  - a translated string (format: "translate:xxx")
+  - define a user variable (format: "define:name,value")
+  - an option (format: "file.section.option")
+  - a local variable in buffer
+  - a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
 Format for hdata can be one of following:
   hdata.var1.var2...: start with a hdata (pointer must be known), and ask variables one after one (other hdata can be followed)
   hdata[list].var1.var2...: start with a hdata using a list/pointer/pointer name, for example:
@@ -1460,6 +1461,8 @@ Examples (simple strings):
   /eval -n ${window.buffer.full_name}             ==> core.weechat
   /eval -n ${window.buffer.number}                ==> 1
   /eval -n ${\t}                                  ==> <tab>
+  /eval -n ${chars:digit}                         ==> 0123456789
+  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST
   /eval -n ${lower:TEST}                          ==> test
   /eval -n ${upper:test}                          ==> TEST
   /eval -n ${hide:-,${relay.network.password}}    ==> --------
diff --git a/doc/sr/includes/autogen_user_commands.sr.adoc b/doc/sr/includes/autogen_user_commands.sr.adoc
index 038a4554e..2bcf146d1 100644
--- a/doc/sr/includes/autogen_user_commands.sr.adoc
+++ b/doc/sr/includes/autogen_user_commands.sr.adoc
@@ -1373,83 +1373,84 @@ infolists: исписује инфо о инфолистама
 /eval  [-n|-s] [-d] <израз>
        [-n] [-d [-d]] -c <израз1> <оператор> <израз2>
 
-        -n: приказује резултат и не шаље га у бафер (дибаг режим)
-        -s: дели израз пре израчунавања (многе команде могу да се раздвоје са тачка зарезима)
-        -d: приказује дибаг излаз након израчунавања (са два -d: детаљнији дибаг)
-        -c: израчунава као услов: користе се оператори и заграде, враћа логичку вредност („0” или „1”)
-     израз: израз који се израчунава, променљиве у формату ${променљива} се замењују (погледајте испод); више команди може да се раздвоји са тачка зарезима
-  оператор: логички или оператор поређења:
-            - логички оператори:
-                &&   логичко „и”
-                ||   логичко „или”
-            - оператори поређења:
-                ==   једнако
-                !=   није једнако
-                <=   мање или једнако
-                <    мање
-                >=   веће или једнако
-                >    веће
-                =~   подудара се са POSIX проширеним регуларним изразом
-                !~   НЕ подудара се са POSIX проширеним регуларним изразом
-                ==*  је маска подударања, разликује величину слова (дозвољен је џокер „*”)
-                !!*  НИЈЕ маска подударања, разликује величину слова (дозвољен је џокер „*”)
-                =*   је маска подударања, не разликује величину слова (дозвољен је џокер „*”)
-                !*   НИЈЕ маска подударања, не разликује величину слова (дозвољен је џокер „*”)
-                ==-  је укључено, разликује величину слова
-                !!-  НИЈЕ укључено, разликује величину слова
-                =-   је укључено, не разликује величину слова
-                !-   НИЈЕ укључено, не разликује величину слова
-
-Сматра се да је израз „true” ако није NULL, није празан и различит је од „0”.
-Поређење се врши употребом бројева у покретном зарезу ако су два израза важећи бројеви, у једном од следећих формата:
-  - целобројни (примери: 5, -7)
-  - број у покретном зарезу (примери: 5.2, -7.5, 2.83e-2)
-  - хексадецимални број (примери: 0xA3, -0xA3)
-Ако желите да форсирате поређење стрингова, можете да додате знаке навода око сваког израза, на пример:
+        -n: display result without sending it to buffer (debug mode)
+        -s: split expression before evaluating it (many commands can be separated by semicolons)
+        -d: display debug output after evaluation (with two -d: more verbose debug)
+        -c: evaluate as condition: use operators and parentheses, return a boolean value ("0" or "1")
+expression: expression to evaluate, variables with format ${variable} are replaced (see below); many commands can be separated by semicolons
+  operator: a logical or comparison operator:
+            - logical operators:
+                &&   boolean "and"
+                ||   boolean "or"
+            - comparison operators:
+                ==   equal
+                !=   not equal
+                <=   less or equal
+                <    less
+                >=   greater or equal
+                >    greater
+                =~   is matching POSIX extended regex
+                !~   is NOT matching POSIX extended regex
+                ==*  is matching mask, case sensitive (wildcard "*" is allowed)
+                !!*  is NOT matching mask, case sensitive (wildcard "*" is allowed)
+                =*   is matching mask, case insensitive (wildcard "*" is allowed)
+                !*   is NOT matching mask, case insensitive (wildcard "*" is allowed)
+                ==-  is included, case sensitive
+                !!-  is NOT included, case sensitive
+                =-   is included, case insensitive
+                !-   is NOT included, case insensitive
+
+An expression is considered as "true" if it is not NULL, not empty, and different from "0".
+The comparison is made using floating point numbers if the two expressions are valid numbers, with one of the following formats:
+  - integer (examples: 5, -7)
+  - floating point number (examples: 5.2, -7.5, 2.83e-2)
+  - hexadecimal number (examples: 0xA3, -0xA3)
+To force a string comparison, you can add double quotes around each expression, for example:
   50 > 100      ==> 0
   "50" > "100"  ==> 1
 
-У изразима се замењују неке променљиве, користећи формат ${променљива}, променљива може да буде, према редоследу приоритета:
-  1. сам стринг без израчунавања (формат: „raw:xxx”)
-  2. кориснички дефинисана променљива (формат: „име”)
-  3. израчунати под-стринг (формат: „eval:xxx”)
-  4. израчунати услов (формат: „eval_cond:xxx”)
-  5. стринг са означеним карактерима (формат: „esc:xxx” или „\xxx”)
-  6. стринг конвертован у мала слова (формат: "lower:xxx")
-  7. стринг конвертован у велика слова (формат: "upper:xxx")
-  8. стринг са карактерима за сакривање (формат: „hide:кар,стринг”)
-  9. стринг са највише карактера (формат: „cut:макс,суфикс,стринг” или „cut:+макс,суфикс,стринг")
-     или макс број карактера који се приказује на екрану (формат: „cutscr:макс,суфикс,стринг” или „cutscr:+макс,суфикс,стринг”)
-  10. обрнути стринг (формат: „rev:xxx” или „revscr:xxx”)
-  11. поновљени стринг (формат: „repeat:број,стринг”)
-  12. дужина стринга (формат: „length:xxx” или „lengthscr:xxx”)
-  13. подела стринга (формат: „split:број,сепаратори,заставице,xxx”)
-  14. подела аргумената љуске (формат: „split_shell:број,xxx”)
-  15. боја (формат: „color:xxx”, погледајте „Референтни приручник API додатака”, функција „color”)
-  16. модификатор (формат: „modifier:име,подаци,стринг”)
-  17. инфо (формат: „info:име,аргументи”, аргументи нису обавезни)
-  18. base 16/32/64 шифриран/дешифрован стринг (формат: „base_encode:основа, xxx” или „base_decode:основа,xxx”)
-  19. текући датум/време (формат: „date” или „date:формат”)
-  20. променљива окружења (формат: „env:XXX”)
-  21. тернарни оператор (формат: „if:услов?вредност_ако_је_тачно:вредност_ако_је_нетачно”)
-  22. резултат израза са заградама и операторима + - * / // % ** (формат: „calc:xxx”)
-  23. случајни целобројни број (формат: „random:мин,макс”)
-  24. преведени стринг (формат: „translate:xxx”)
-  25. дефиниција корисничке промонљиве (формат: „define:име,вредност”)
-  26. опција (формат: „фајл.секција.опција”)
-  27. локална променљива у баферу
-  28. hdata име/променљива (вредност се аутоматски конвертује у стринг), „window” и „buffer” подразумевано показују на текући прозор/бафер.
-Формат за hdata може да буде једно од следећег:
-  hdata.пром1.пром2...: почиње са hdata (показивач мора да буде познат), и пита променљиве једну за другом (могу да следе и остала hdata)
-  hdata[листа].пром1.пром2...: почиње са hdata користећи листу/показивач/име показивача, на пример:
-    ${buffer[gui_buffers].full_name}: пуно име првог бафера у увезаној листи бафера
-    ${plugin[weechat_plugins].name}: име првог бафера у увезаној листи додатака
-  hdata[показивач].пром1.пром2...: почиње са hdata користећи показивач, на пример:
-    ${buffer[0x1234abcd].full_name}: пуно име бафера са овим показивачем (може да се користи у окидачима)
-    ${buffer[my_pointer].full_name}: пуно име бафера са овим именом показивача (може да се користи у окидачима)
-У вези имена hdata и променљивих, молим вас да погледате „Референтни приручник API додатака”, функцију „weechat_hdata_get”.
-
-Примери (једноставни стрингови):
+Some variables are replaced in expression, using the format ${variable}, variable can be, by order of priority:
+  - the string itself without evaluation (format: "raw:xxx")
+  - a user-defined variable (format: "name")
+  - an evaluated sub-string (format: "eval:xxx")
+  - an evaluated condition (format: "eval_cond:xxx")
+  - a string with escaped chars (format: "esc:xxx" or "\xxx")
+  - a string with a range of chars (format: "chars:xxx" or "chars:c1-c2" where "xxx" is one of: "digit", "xdigit", "lower", "upper", "alpha", "alnum")
+  - a string converted to lower case (format: "lower:xxx")
+  - a string converted to upper case (format: "upper:xxx")
+  - a string with chars to hide (format: "hide:char,string")
+  - a string with max chars (format: "cut:max,suffix,string" or "cut:+max,suffix,string")
+     or max chars displayed on screen (format: "cutscr:max,suffix,string" or "cutscr:+max,suffix,string")
+  - a reversed string (format: "rev:xxx" or "revscr:xxx")
+  - a repeated string (format: "repeat:count,string")
+  - length of a string (format: "length:xxx" or "lengthscr:xxx")
+  - split of a string (format: "split:number,separators,flags,xxx")
+  - split of shell argmuents (format: "split_shell:number,xxx")
+  - a color (format: "color:xxx", see "Plugin API reference", function "color")
+  - a modifier (format: "modifier:name,data,string")
+  - an info (format: "info:name,arguments", arguments are optional)
+  - a base 16/32/64 encoded/decoded string (format: "base_encode:base,xxx" or "base_decode:base,xxx")
+  - current date/time (format: "date" or "date:format")
+  - an environment variable (format: "env:XXX")
+  - a ternary operator (format: "if:condition?value_if_true:value_if_false")
+  - result of an expression with parentheses and operators + - * / // % ** (format: "calc:xxx")
+  - a random integer number (format: "random:min,max")
+  - a translated string (format: "translate:xxx")
+  - define a user variable (format: "define:name,value")
+  - an option (format: "file.section.option")
+  - a local variable in buffer
+  - a hdata name/variable (the value is automatically converted to string), by default "window" and "buffer" point to current window/buffer.
+Format for hdata can be one of following:
+  hdata.var1.var2...: start with a hdata (pointer must be known), and ask variables one after one (other hdata can be followed)
+  hdata[list].var1.var2...: start with a hdata using a list/pointer/pointer name, for example:
+    ${buffer[gui_buffers].full_name}: full name of first buffer in linked list of buffers
+    ${plugin[weechat_plugins].name}: name of first plugin in linked list of plugins
+  hdata[pointer].var1.var2...: start with a hdata using a pointer, for example:
+    ${buffer[0x1234abcd].full_name}: full name of the buffer with this pointer (can be used in triggers)
+    ${buffer[my_pointer].full_name}: full name of the buffer with this pointer name (can be used in triggers)
+For name of hdata and variables, please look at "Plugin API reference", function "weechat_hdata_get".
+
+Examples (simple strings):
   /eval -n ${raw:${info:version}}                 ==> ${info:version}
   /eval -n ${eval_cond:${window.win_width}>100}   ==> 1
   /eval -n ${info:version}                        ==> 0.4.3
@@ -1461,6 +1462,8 @@ infolists: исписује инфо о инфолистама
   /eval -n ${window.buffer.full_name}             ==> core.weechat
   /eval -n ${window.buffer.number}                ==> 1
   /eval -n ${\t}                                  ==> <tab>
+  /eval -n ${chars:digit}                         ==> 0123456789
+  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST
   /eval -n ${lower:TEST}                          ==> test
   /eval -n ${upper:test}                          ==> TEST
   /eval -n ${hide:-,${relay.network.password}}    ==> --------
@@ -1486,7 +1489,7 @@ infolists: исписује инфо о инфолистама
   /eval -n ${translate:Plugin}                    ==> Extension
   /eval -n ${define:len,${calc:5+3}}${len}x${len} ==> 8x8
 
-Примери (услови):
+Examples (conditions):
   /eval -n -c ${window.buffer.number} > 2 ==> 0
   /eval -n -c ${window.win_width} > 100   ==> 1
   /eval -n -c (8 > 12) || (5 > 2)         ==> 1
diff --git a/po/cs.po b/po/cs.po
index 482dcee70..c645427b4 100644
--- a/po/cs.po
+++ b/po/cs.po
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Ondřej Súkup <mimi.vx@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1572,43 +1572,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1639,6 +1641,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/de.po b/po/de.po
index 4b5527c57..9cabbe1b2 100644
--- a/po/de.po
+++ b/po/de.po
@@ -25,7 +25,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Nils Görs <weechatter@arcor.de>\n"
 "Language-Team: German <kde-i18n-de@kde.org>\n"
@@ -1657,6 +1657,160 @@ msgstr ""
 "[-n|-s] [-d] <expression> || [-n] [-d [-d]] -c <expression1> <operator> "
 "<expression2>"
 
+#, fuzzy
+#| msgid ""
+#| "        -n: display result without sending it to buffer (debug mode)\n"
+#| "        -s: split expression before evaluating it (many commands can be "
+#| "separated by semicolons)\n"
+#| "        -d: display debug output after evaluation (with two -d: more "
+#| "verbose debug)\n"
+#| "        -c: evaluate as condition: use operators and parentheses, return "
+#| "a boolean value (\"0\" or \"1\")\n"
+#| "expression: expression to evaluate, variables with format ${variable} are "
+#| "replaced (see below); many commands can be separated by semicolons\n"
+#| "  operator: a logical or comparison operator:\n"
+#| "            - logical operators:\n"
+#| "                &&   boolean \"and\"\n"
+#| "                ||   boolean \"or\"\n"
+#| "            - comparison operators:\n"
+#| "                ==   equal\n"
+#| "                !=   not equal\n"
+#| "                <=   less or equal\n"
+#| "                <    less\n"
+#| "                >=   greater or equal\n"
+#| "                >    greater\n"
+#| "                =~   is matching POSIX extended regex\n"
+#| "                !~   is NOT matching POSIX extended regex\n"
+#| "                ==*  is matching mask, case sensitive (wildcard \"*\" is "
+#| "allowed)\n"
+#| "                !!*  is NOT matching mask, case sensitive (wildcard \"*\" "
+#| "is allowed)\n"
+#| "                =*   is matching mask, case insensitive (wildcard \"*\" "
+#| "is allowed)\n"
+#| "                !*   is NOT matching mask, case insensitive (wildcard "
+#| "\"*\" is allowed)\n"
+#| "                ==-  is included, case sensitive\n"
+#| "                !!-  is NOT included, case sensitive\n"
+#| "                =-   is included, case insensitive\n"
+#| "                !-   is NOT included, case insensitive\n"
+#| "\n"
+#| "An expression is considered as \"true\" if it is not NULL, not empty, and "
+#| "different from \"0\".\n"
+#| "The comparison is made using floating point numbers if the two "
+#| "expressions are valid numbers, with one of the following formats:\n"
+#| "  - integer (examples: 5, -7)\n"
+#| "  - floating point number (examples: 5.2, -7.5, 2.83e-2)\n"
+#| "  - hexadecimal number (examples: 0xA3, -0xA3)\n"
+#| "To force a string comparison, you can add double quotes around each "
+#| "expression, for example:\n"
+#| "  50 > 100      ==> 0\n"
+#| "  \"50\" > \"100\"  ==> 1\n"
+#| "\n"
+#| "Some variables are replaced in expression, using the format ${variable}, "
+#| "variable can be, by order of priority:\n"
+#| "  1. the string itself without evaluation (format: \"raw:xxx\")\n"
+#| "  2. a user-defined variable (format: \"name\")\n"
+#| "  3. an evaluated sub-string (format: \"eval:xxx\")\n"
+#| "  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
+#| "  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+#| "  6. a string converted to lower case (format: \"lower:xxx\")\n"
+#| "  7. a string converted to upper case (format: \"upper:xxx\")\n"
+#| "  8. a string with chars to hide (format: \"hide:char,string\")\n"
+#| "  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
+#| "+max,suffix,string\")\n"
+#| "     or max chars displayed on screen (format: \"cutscr:max,suffix,"
+#| "string\" or \"cutscr:+max,suffix,string\")\n"
+#| "  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+#| "  11. a repeated string (format: \"repeat:count,string\")\n"
+#| "  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+#| "  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
+#| "  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+#| "  15. a color (format: \"color:xxx\", see \"Plugin API reference\", "
+#| "function \"color\")\n"
+#| "  16. a modifier (format: \"modifier:name,data,string\")\n"
+#| "  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
+#| "  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
+#| "xxx\" or \"base_decode:base,xxx\")\n"
+#| "  19. current date/time (format: \"date\" or \"date:format\")\n"
+#| "  20. an environment variable (format: \"env:XXX\")\n"
+#| "  21. a ternary operator (format: \"if:condition?value_if_true:"
+#| "value_if_false\")\n"
+#| "  22. result of an expression with parentheses and operators + - * / // % "
+#| "** (format: \"calc:xxx\")\n"
+#| "  23. a random integer number (format: \"random:min,max\")\n"
+#| "  24. a translated string (format: \"translate:xxx\")\n"
+#| "  25. define a user variable (format: \"define:name,value\")\n"
+#| "  26. an option (format: \"file.section.option\")\n"
+#| "  27. a local variable in buffer\n"
+#| "  28. a hdata name/variable (the value is automatically converted to "
+#| "string), by default \"window\" and \"buffer\" point to current window/"
+#| "buffer.\n"
+#| "Format for hdata can be one of following:\n"
+#| "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
+#| "variables one after one (other hdata can be followed)\n"
+#| "  hdata[list].var1.var2...: start with a hdata using a list/pointer/"
+#| "pointer name, for example:\n"
+#| "    ${buffer[gui_buffers].full_name}: full name of first buffer in linked "
+#| "list of buffers\n"
+#| "    ${plugin[weechat_plugins].name}: name of first plugin in linked list "
+#| "of plugins\n"
+#| "  hdata[pointer].var1.var2...: start with a hdata using a pointer, for "
+#| "example:\n"
+#| "    ${buffer[0x1234abcd].full_name}: full name of the buffer with this "
+#| "pointer (can be used in triggers)\n"
+#| "    ${buffer[my_pointer].full_name}: full name of the buffer with this "
+#| "pointer name (can be used in triggers)\n"
+#| "For name of hdata and variables, please look at \"Plugin API reference\", "
+#| "function \"weechat_hdata_get\".\n"
+#| "\n"
+#| "Examples (simple strings):\n"
+#| "  /eval -n ${raw:${info:version}}                 ==> ${info:version}\n"
+#| "  /eval -n ${eval_cond:${window.win_width}>100}   ==> 1\n"
+#| "  /eval -n ${info:version}                        ==> 0.4.3\n"
+#| "  /eval -n ${env:HOME}                            ==> /home/user\n"
+#| "  /eval -n ${weechat.look.scroll_amount}          ==> 3\n"
+#| "  /eval -n ${sec.data.password}                   ==> secret\n"
+#| "  /eval -n ${window}                              ==> 0x2549aa0\n"
+#| "  /eval -n ${window.buffer}                       ==> 0x2549320\n"
+#| "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
+#| "  /eval -n ${window.buffer.number}                ==> 1\n"
+#| "  /eval -n ${\\t}                                  ==> <tab>\n"
+#| "  /eval -n ${lower:TEST}                          ==> test\n"
+#| "  /eval -n ${upper:test}                          ==> TEST\n"
+#| "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
+#| "  /eval -n ${cut:3,+,test}                        ==> tes+\n"
+#| "  /eval -n ${cut:+3,+,test}                       ==> te+\n"
+#| "  /eval -n ${date:%H:%M:%S}                       ==> 07:46:40\n"
+#| "  /eval -n ${if:${info:term_width}>80?big:small}  ==> big\n"
+#| "  /eval -n ${rev:Hello}                           ==> olleH\n"
+#| "  /eval -n ${repeat:5,-}                          ==> -----\n"
+#| "  /eval -n ${length:test}                         ==> 4\n"
+#| "  /eval -n ${split:1,,,abc,def,ghi}               ==> abc\n"
+#| "  /eval -n ${split:-1,,,abc,def,ghi}              ==> ghi\n"
+#| "  /eval -n ${split:count,,,abc,def,ghi}           ==> 3\n"
+#| "  /eval -n ${split:random,,,abc,def,ghi}          ==> def\n"
+#| "  /eval -n ${split_shell:1,\"arg 1\" arg2}          ==> arg 1\n"
+#| "  /eval -n ${split_shell:-1,\"arg 1\" arg2}         ==> arg2\n"
+#| "  /eval -n ${split_shell:count,\"arg 1\" arg2}      ==> 2\n"
+#| "  /eval -n ${split_shell:random,\"arg 1\" arg2}     ==> arg2\n"
+#| "  /eval -n ${calc:(5+2)*3}                        ==> 21\n"
+#| "  /eval -n ${random:0,10}                         ==> 3\n"
+#| "  /eval -n ${base_encode:64,test}                 ==> dGVzdA==\n"
+#| "  /eval -n ${base_decode:64,dGVzdA==}             ==> test\n"
+#| "  /eval -n ${translate:Plugin}                    ==> Extension\n"
+#| "  /eval -n ${define:len,${calc:5+3}}${len}x${len} ==> 8x8\n"
+#| "\n"
+#| "Examples (conditions):\n"
+#| "  /eval -n -c ${window.buffer.number} > 2 ==> 0\n"
+#| "  /eval -n -c ${window.win_width} > 100   ==> 1\n"
+#| "  /eval -n -c (8 > 12) || (5 > 2)         ==> 1\n"
+#| "  /eval -n -c (8 > 12) && (5 > 2)         ==> 0\n"
+#| "  /eval -n -c abcd =~ ^ABC                ==> 1\n"
+#| "  /eval -n -c abcd =~ (?-i)^ABC           ==> 0\n"
+#| "  /eval -n -c abcd =~ (?-i)^abc           ==> 1\n"
+#| "  /eval -n -c abcd !~ abc                 ==> 0\n"
+#| "  /eval -n -c abcd =* a*d                 ==> 1\n"
+#| "  /eval -n -c abcd =- bc                  ==> 1"
 msgid ""
 "        -n: display result without sending it to buffer (debug mode)\n"
 "        -s: split expression before evaluating it (many commands can be "
@@ -1707,43 +1861,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1774,6 +1930,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/es.po b/po/es.po
index 0938a4b24..911cfcef8 100644
--- a/po/es.po
+++ b/po/es.po
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Santiago Forero <santiago@forero.xyz>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1815,43 +1815,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1882,6 +1884,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/fr.po b/po/fr.po
index 38345a3be..aa39918f9 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -21,8 +21,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
-"PO-Revision-Date: 2022-10-15 22:51+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
+"PO-Revision-Date: 2022-11-06 09:06+0100\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
 "Language: fr\n"
@@ -1676,43 +1676,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1743,6 +1745,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
@@ -1831,46 +1835,47 @@ msgstr ""
 "\n"
 "Des variables sont remplacées dans l'expression, en utilisant le format "
 "${variable}, la variable pouvant être, par ordre de priorité :\n"
-"  1. la chaîne elle-même sans évaluation (format : \"raw:xxx\")\n"
-"  2. une variable définie par l'utilisateur (format : \"nom\")\n"
-"  3. une sous-chaîne évaluée (format : \"eval:xxx\")\n"
-"  4. une condition évaluée (format : \"eval_cond:xxx\")\n"
-"  5. une chaîne avec les caractères échappés (format : \"esc:xxx\" ou "
+"  - la chaîne elle-même sans évaluation (format : \"raw:xxx\")\n"
+"  - une variable définie par l'utilisateur (format : \"nom\")\n"
+"  - une sous-chaîne évaluée (format : \"eval:xxx\")\n"
+"  - une condition évaluée (format : \"eval_cond:xxx\")\n"
+"  - une chaîne avec les caractères échappés (format : \"esc:xxx\" ou "
 "\"\\xxx\")\n"
-"  6. une chaîne convertie en minuscules (format : \"lower:xxx\")\n"
-"  7. une chaîne convertie en majuscules (format : \"upper:xxx\")\n"
-"  8. une chaîne avec des caractères à cacher (format : \"hide:caractère,"
+"  - une chaîne avec un intervalle de caractères (format : \"chars:xxx\" ou "
+"\"chars:c1-c2\")\n"
+"  - une chaîne convertie en minuscules (format : \"lower:xxx\")\n"
+"  - une chaîne convertie en majuscules (format : \"upper:xxx\")\n"
+"  - une chaîne avec des caractères à cacher (format : \"hide:caractère,"
 "chaîne\")\n"
-"  9. une chaîne avec un maximum de caractères (format : \"cut:max,suffixe,"
+"  - une chaîne avec un maximum de caractères (format : \"cut:max,suffixe,"
 "chaîne\" ou \"cut:+max,suffixe,chaîne\")\n"
-"     ou un maximum de caractères affichés à l'écran (format : \"cutscr:max,"
+"    ou un maximum de caractères affichés à l'écran (format : \"cutscr:max,"
 "suffixe,chaîne\" ou \"cutscr:+max,suffixe,chaîne\")\n"
-"  10. une chaîne inversée (format : \"rev:xxx\" ou \"revscr:xxx\")\n"
-"  11. une chaîne répétée (format : \"repeat:nombre,chaîne\")\n"
-"  12. longueur d'une chaîne (format : \"length:xxx\" ou \"lengthscr:xxx\")\n"
-"  13. découpage d'une chaîne (format : \"split:nombre,séparateurs,flags,"
+"  - une chaîne inversée (format : \"rev:xxx\" ou \"revscr:xxx\")\n"
+"  - une chaîne répétée (format : \"repeat:nombre,chaîne\")\n"
+"  - longueur d'une chaîne (format : \"length:xxx\" ou \"lengthscr:xxx\")\n"
+"  - découpage d'une chaîne (format : \"split:nombre,séparateurs,flags,"
 "xxx\")\n"
-"  14. découpage de paramètres shell (format : \"split_shell:nombre,xxx\")\n"
-"  15. une couleur (format : \"color:xxx\", voir la \"Référence API "
+"  - découpage de paramètres shell (format : \"split_shell:nombre,xxx\")\n"
+"  - une couleur (format : \"color:xxx\", voir la \"Référence API "
 "extension\", fonction \"color\")\n"
-"  16. un modificateur (format : \"modifier:nom,données,chaîne\")\n"
-"  17. une info (format : \"info:nom,paramètres\", les paramètres sont "
+"  - un modificateur (format : \"modifier:nom,données,chaîne\")\n"
+"  - une info (format : \"info:nom,paramètres\", les paramètres sont "
 "optionnels)\n"
-"  18. une chaîne encodée/decodée en base 16, 32 ou 64 (format : "
-"\"base_encode:base,xxx\" ou \"base_decode:base,xxx\")\n"
-"  19. la date/heure courante (format : \"date\" ou \"date:format\")\n"
-"  20. une variable d'environnement (format : \"env:XXX\")\n"
-"  21. un opérateur ternaire (format : \"if:condition?valeur_si_vrai:"
+"  - une chaîne encodée/decodée en base 16, 32 ou 64 (format : \"base_encode:"
+"base,xxx\" ou \"base_decode:base,xxx\")\n"
+"  - la date/heure courante (format : \"date\" ou \"date:format\")\n"
+"  - une variable d'environnement (format : \"env:XXX\")\n"
+"  - un opérateur ternaire (format : \"if:condition?valeur_si_vrai:"
 "valeur_si_faux\")\n"
-"  22. le résultat d'une expression avec parenthèses et les opérateurs + - "
+"  - le résultat d'une expression avec parenthèses et les opérateurs + - "
 "* / // % ** (format : \"calc:xxx\")\n"
-"  23. un nombre entier aléatoire (format : \"random:min,max\")\n"
-"  24. une chaîne traduite (format : \"translate:xxx\")\n"
-"  25. déclaration d'une variable utilisateur (format : \"define:nom,"
-"valeur\")\n"
-"  26. une option (format : \"fichier.section.option\")\n"
-"  27. une variable locale du tampon\n"
-"  28. un hdata/variable (la valeur est automatiquement convertie en chaîne), "
+"  - un nombre entier aléatoire (format : \"random:min,max\")\n"
+"  - une chaîne traduite (format : \"translate:xxx\")\n"
+"  - déclaration d'une variable utilisateur (format : \"define:nom,valeur\")\n"
+"  - une option (format : \"fichier.section.option\")\n"
+"  - une variable locale du tampon\n"
+"  - un hdata/variable (la valeur est automatiquement convertie en chaîne), "
 "par défaut \"window\" et \"buffer\" pointent vers la fenêtre et le tampon "
 "courants.\n"
 "Le format du hdata peut être le suivant :\n"
@@ -1904,6 +1909,8 @@ msgstr ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/hu.po b/po/hu.po
index 216d88bb6..04cbed9bb 100644
--- a/po/hu.po
+++ b/po/hu.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Andras Voroskoi <voroskoi@frugalware.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1464,43 +1464,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1531,6 +1533,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/it.po b/po/it.po
index 2c3dc5644..310f53872 100644
--- a/po/it.po
+++ b/po/it.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Esteban I. Ruiz Moreno <exio4.com@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1584,43 +1584,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1651,6 +1653,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/ja.po b/po/ja.po
index 49fbc9fd3..323bb5d18 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: AYANOKOUZI, Ryuunosuke <i38w7i3@yahoo.co.jp>\n"
 "Language-Team: Japanese <https://github.com/l/weechat/tree/master/"
@@ -1670,43 +1670,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1737,6 +1739,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/pl.po b/po/pl.po
index eed301386..fc99ba3d1 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Krzysztof Korościk <soltys@soltys.info>\n"
 "Language-Team: Polish <kde-i18n-doc@kde.org>\n"
@@ -1836,43 +1836,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1903,6 +1905,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/pt.po b/po/pt.po
index 7df192bde..0b0d52133 100644
--- a/po/pt.po
+++ b/po/pt.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Vasco Almeida <vascomalmeida@sapo.pt>\n"
 "Language-Team: Portuguese <>\n"
@@ -1672,43 +1672,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1739,6 +1741,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/pt_BR.po b/po/pt_BR.po
index 2023d081e..afffb0917 100644
--- a/po/pt_BR.po
+++ b/po/pt_BR.po
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Érico Nogueira <ericonr@disroot.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1645,43 +1645,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1712,6 +1714,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/ru.po b/po/ru.po
index 36efa96f5..5271699a4 100644
--- a/po/ru.po
+++ b/po/ru.po
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Aleksey V Zapparov AKA ixti <ixti@member.fsf.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1485,43 +1485,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1552,6 +1554,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/sr.po b/po/sr.po
index 0ed79243a..620bb67a2 100644
--- a/po/sr.po
+++ b/po/sr.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Ivan Pešić <ivan.pesic@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1602,6 +1602,160 @@ msgid ""
 "<expression2>"
 msgstr "[-n|-s] [-d] <израз> || [-n] [-d [-d]] -c <израз1> <оператор> <израз2>"
 
+#, fuzzy
+#| msgid ""
+#| "        -n: display result without sending it to buffer (debug mode)\n"
+#| "        -s: split expression before evaluating it (many commands can be "
+#| "separated by semicolons)\n"
+#| "        -d: display debug output after evaluation (with two -d: more "
+#| "verbose debug)\n"
+#| "        -c: evaluate as condition: use operators and parentheses, return "
+#| "a boolean value (\"0\" or \"1\")\n"
+#| "expression: expression to evaluate, variables with format ${variable} are "
+#| "replaced (see below); many commands can be separated by semicolons\n"
+#| "  operator: a logical or comparison operator:\n"
+#| "            - logical operators:\n"
+#| "                &&   boolean \"and\"\n"
+#| "                ||   boolean \"or\"\n"
+#| "            - comparison operators:\n"
+#| "                ==   equal\n"
+#| "                !=   not equal\n"
+#| "                <=   less or equal\n"
+#| "                <    less\n"
+#| "                >=   greater or equal\n"
+#| "                >    greater\n"
+#| "                =~   is matching POSIX extended regex\n"
+#| "                !~   is NOT matching POSIX extended regex\n"
+#| "                ==*  is matching mask, case sensitive (wildcard \"*\" is "
+#| "allowed)\n"
+#| "                !!*  is NOT matching mask, case sensitive (wildcard \"*\" "
+#| "is allowed)\n"
+#| "                =*   is matching mask, case insensitive (wildcard \"*\" "
+#| "is allowed)\n"
+#| "                !*   is NOT matching mask, case insensitive (wildcard "
+#| "\"*\" is allowed)\n"
+#| "                ==-  is included, case sensitive\n"
+#| "                !!-  is NOT included, case sensitive\n"
+#| "                =-   is included, case insensitive\n"
+#| "                !-   is NOT included, case insensitive\n"
+#| "\n"
+#| "An expression is considered as \"true\" if it is not NULL, not empty, and "
+#| "different from \"0\".\n"
+#| "The comparison is made using floating point numbers if the two "
+#| "expressions are valid numbers, with one of the following formats:\n"
+#| "  - integer (examples: 5, -7)\n"
+#| "  - floating point number (examples: 5.2, -7.5, 2.83e-2)\n"
+#| "  - hexadecimal number (examples: 0xA3, -0xA3)\n"
+#| "To force a string comparison, you can add double quotes around each "
+#| "expression, for example:\n"
+#| "  50 > 100      ==> 0\n"
+#| "  \"50\" > \"100\"  ==> 1\n"
+#| "\n"
+#| "Some variables are replaced in expression, using the format ${variable}, "
+#| "variable can be, by order of priority:\n"
+#| "  1. the string itself without evaluation (format: \"raw:xxx\")\n"
+#| "  2. a user-defined variable (format: \"name\")\n"
+#| "  3. an evaluated sub-string (format: \"eval:xxx\")\n"
+#| "  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
+#| "  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+#| "  6. a string converted to lower case (format: \"lower:xxx\")\n"
+#| "  7. a string converted to upper case (format: \"upper:xxx\")\n"
+#| "  8. a string with chars to hide (format: \"hide:char,string\")\n"
+#| "  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
+#| "+max,suffix,string\")\n"
+#| "     or max chars displayed on screen (format: \"cutscr:max,suffix,"
+#| "string\" or \"cutscr:+max,suffix,string\")\n"
+#| "  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+#| "  11. a repeated string (format: \"repeat:count,string\")\n"
+#| "  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+#| "  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
+#| "  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+#| "  15. a color (format: \"color:xxx\", see \"Plugin API reference\", "
+#| "function \"color\")\n"
+#| "  16. a modifier (format: \"modifier:name,data,string\")\n"
+#| "  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
+#| "  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
+#| "xxx\" or \"base_decode:base,xxx\")\n"
+#| "  19. current date/time (format: \"date\" or \"date:format\")\n"
+#| "  20. an environment variable (format: \"env:XXX\")\n"
+#| "  21. a ternary operator (format: \"if:condition?value_if_true:"
+#| "value_if_false\")\n"
+#| "  22. result of an expression with parentheses and operators + - * / // % "
+#| "** (format: \"calc:xxx\")\n"
+#| "  23. a random integer number (format: \"random:min,max\")\n"
+#| "  24. a translated string (format: \"translate:xxx\")\n"
+#| "  25. define a user variable (format: \"define:name,value\")\n"
+#| "  26. an option (format: \"file.section.option\")\n"
+#| "  27. a local variable in buffer\n"
+#| "  28. a hdata name/variable (the value is automatically converted to "
+#| "string), by default \"window\" and \"buffer\" point to current window/"
+#| "buffer.\n"
+#| "Format for hdata can be one of following:\n"
+#| "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
+#| "variables one after one (other hdata can be followed)\n"
+#| "  hdata[list].var1.var2...: start with a hdata using a list/pointer/"
+#| "pointer name, for example:\n"
+#| "    ${buffer[gui_buffers].full_name}: full name of first buffer in linked "
+#| "list of buffers\n"
+#| "    ${plugin[weechat_plugins].name}: name of first plugin in linked list "
+#| "of plugins\n"
+#| "  hdata[pointer].var1.var2...: start with a hdata using a pointer, for "
+#| "example:\n"
+#| "    ${buffer[0x1234abcd].full_name}: full name of the buffer with this "
+#| "pointer (can be used in triggers)\n"
+#| "    ${buffer[my_pointer].full_name}: full name of the buffer with this "
+#| "pointer name (can be used in triggers)\n"
+#| "For name of hdata and variables, please look at \"Plugin API reference\", "
+#| "function \"weechat_hdata_get\".\n"
+#| "\n"
+#| "Examples (simple strings):\n"
+#| "  /eval -n ${raw:${info:version}}                 ==> ${info:version}\n"
+#| "  /eval -n ${eval_cond:${window.win_width}>100}   ==> 1\n"
+#| "  /eval -n ${info:version}                        ==> 0.4.3\n"
+#| "  /eval -n ${env:HOME}                            ==> /home/user\n"
+#| "  /eval -n ${weechat.look.scroll_amount}          ==> 3\n"
+#| "  /eval -n ${sec.data.password}                   ==> secret\n"
+#| "  /eval -n ${window}                              ==> 0x2549aa0\n"
+#| "  /eval -n ${window.buffer}                       ==> 0x2549320\n"
+#| "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
+#| "  /eval -n ${window.buffer.number}                ==> 1\n"
+#| "  /eval -n ${\\t}                                  ==> <tab>\n"
+#| "  /eval -n ${lower:TEST}                          ==> test\n"
+#| "  /eval -n ${upper:test}                          ==> TEST\n"
+#| "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
+#| "  /eval -n ${cut:3,+,test}                        ==> tes+\n"
+#| "  /eval -n ${cut:+3,+,test}                       ==> te+\n"
+#| "  /eval -n ${date:%H:%M:%S}                       ==> 07:46:40\n"
+#| "  /eval -n ${if:${info:term_width}>80?big:small}  ==> big\n"
+#| "  /eval -n ${rev:Hello}                           ==> olleH\n"
+#| "  /eval -n ${repeat:5,-}                          ==> -----\n"
+#| "  /eval -n ${length:test}                         ==> 4\n"
+#| "  /eval -n ${split:1,,,abc,def,ghi}               ==> abc\n"
+#| "  /eval -n ${split:-1,,,abc,def,ghi}              ==> ghi\n"
+#| "  /eval -n ${split:count,,,abc,def,ghi}           ==> 3\n"
+#| "  /eval -n ${split:random,,,abc,def,ghi}          ==> def\n"
+#| "  /eval -n ${split_shell:1,\"arg 1\" arg2}          ==> arg 1\n"
+#| "  /eval -n ${split_shell:-1,\"arg 1\" arg2}         ==> arg2\n"
+#| "  /eval -n ${split_shell:count,\"arg 1\" arg2}      ==> 2\n"
+#| "  /eval -n ${split_shell:random,\"arg 1\" arg2}     ==> arg2\n"
+#| "  /eval -n ${calc:(5+2)*3}                        ==> 21\n"
+#| "  /eval -n ${random:0,10}                         ==> 3\n"
+#| "  /eval -n ${base_encode:64,test}                 ==> dGVzdA==\n"
+#| "  /eval -n ${base_decode:64,dGVzdA==}             ==> test\n"
+#| "  /eval -n ${translate:Plugin}                    ==> Extension\n"
+#| "  /eval -n ${define:len,${calc:5+3}}${len}x${len} ==> 8x8\n"
+#| "\n"
+#| "Examples (conditions):\n"
+#| "  /eval -n -c ${window.buffer.number} > 2 ==> 0\n"
+#| "  /eval -n -c ${window.win_width} > 100   ==> 1\n"
+#| "  /eval -n -c (8 > 12) || (5 > 2)         ==> 1\n"
+#| "  /eval -n -c (8 > 12) && (5 > 2)         ==> 0\n"
+#| "  /eval -n -c abcd =~ ^ABC                ==> 1\n"
+#| "  /eval -n -c abcd =~ (?-i)^ABC           ==> 0\n"
+#| "  /eval -n -c abcd =~ (?-i)^abc           ==> 1\n"
+#| "  /eval -n -c abcd !~ abc                 ==> 0\n"
+#| "  /eval -n -c abcd =* a*d                 ==> 1\n"
+#| "  /eval -n -c abcd =- bc                  ==> 1"
 msgid ""
 "        -n: display result without sending it to buffer (debug mode)\n"
 "        -s: split expression before evaluating it (many commands can be "
@@ -1652,43 +1806,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1719,6 +1875,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/tr.po b/po/tr.po
index d5bcc0422..1fdac094f 100644
--- a/po/tr.po
+++ b/po/tr.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2022-10-15 22:51+0200\n"
 "Last-Translator: Emir SARI <emir_sari@icloud.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1593,6 +1593,160 @@ msgid ""
 "<expression2>"
 msgstr "[-n|-s] [-d] <ifade> || [-n] [-d] -c <ifade1> <işleç> <ifade2>"
 
+#, fuzzy
+#| msgid ""
+#| "        -n: display result without sending it to buffer (debug mode)\n"
+#| "        -s: split expression before evaluating it (many commands can be "
+#| "separated by semicolons)\n"
+#| "        -d: display debug output after evaluation (with two -d: more "
+#| "verbose debug)\n"
+#| "        -c: evaluate as condition: use operators and parentheses, return "
+#| "a boolean value (\"0\" or \"1\")\n"
+#| "expression: expression to evaluate, variables with format ${variable} are "
+#| "replaced (see below); many commands can be separated by semicolons\n"
+#| "  operator: a logical or comparison operator:\n"
+#| "            - logical operators:\n"
+#| "                &&   boolean \"and\"\n"
+#| "                ||   boolean \"or\"\n"
+#| "            - comparison operators:\n"
+#| "                ==   equal\n"
+#| "                !=   not equal\n"
+#| "                <=   less or equal\n"
+#| "                <    less\n"
+#| "                >=   greater or equal\n"
+#| "                >    greater\n"
+#| "                =~   is matching POSIX extended regex\n"
+#| "                !~   is NOT matching POSIX extended regex\n"
+#| "                ==*  is matching mask, case sensitive (wildcard \"*\" is "
+#| "allowed)\n"
+#| "                !!*  is NOT matching mask, case sensitive (wildcard \"*\" "
+#| "is allowed)\n"
+#| "                =*   is matching mask, case insensitive (wildcard \"*\" "
+#| "is allowed)\n"
+#| "                !*   is NOT matching mask, case insensitive (wildcard "
+#| "\"*\" is allowed)\n"
+#| "                ==-  is included, case sensitive\n"
+#| "                !!-  is NOT included, case sensitive\n"
+#| "                =-   is included, case insensitive\n"
+#| "                !-   is NOT included, case insensitive\n"
+#| "\n"
+#| "An expression is considered as \"true\" if it is not NULL, not empty, and "
+#| "different from \"0\".\n"
+#| "The comparison is made using floating point numbers if the two "
+#| "expressions are valid numbers, with one of the following formats:\n"
+#| "  - integer (examples: 5, -7)\n"
+#| "  - floating point number (examples: 5.2, -7.5, 2.83e-2)\n"
+#| "  - hexadecimal number (examples: 0xA3, -0xA3)\n"
+#| "To force a string comparison, you can add double quotes around each "
+#| "expression, for example:\n"
+#| "  50 > 100      ==> 0\n"
+#| "  \"50\" > \"100\"  ==> 1\n"
+#| "\n"
+#| "Some variables are replaced in expression, using the format ${variable}, "
+#| "variable can be, by order of priority:\n"
+#| "  1. the string itself without evaluation (format: \"raw:xxx\")\n"
+#| "  2. a user-defined variable (format: \"name\")\n"
+#| "  3. an evaluated sub-string (format: \"eval:xxx\")\n"
+#| "  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
+#| "  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+#| "  6. a string converted to lower case (format: \"lower:xxx\")\n"
+#| "  7. a string converted to upper case (format: \"upper:xxx\")\n"
+#| "  8. a string with chars to hide (format: \"hide:char,string\")\n"
+#| "  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
+#| "+max,suffix,string\")\n"
+#| "     or max chars displayed on screen (format: \"cutscr:max,suffix,"
+#| "string\" or \"cutscr:+max,suffix,string\")\n"
+#| "  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+#| "  11. a repeated string (format: \"repeat:count,string\")\n"
+#| "  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+#| "  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
+#| "  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+#| "  15. a color (format: \"color:xxx\", see \"Plugin API reference\", "
+#| "function \"color\")\n"
+#| "  16. a modifier (format: \"modifier:name,data,string\")\n"
+#| "  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
+#| "  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
+#| "xxx\" or \"base_decode:base,xxx\")\n"
+#| "  19. current date/time (format: \"date\" or \"date:format\")\n"
+#| "  20. an environment variable (format: \"env:XXX\")\n"
+#| "  21. a ternary operator (format: \"if:condition?value_if_true:"
+#| "value_if_false\")\n"
+#| "  22. result of an expression with parentheses and operators + - * / // % "
+#| "** (format: \"calc:xxx\")\n"
+#| "  23. a random integer number (format: \"random:min,max\")\n"
+#| "  24. a translated string (format: \"translate:xxx\")\n"
+#| "  25. define a user variable (format: \"define:name,value\")\n"
+#| "  26. an option (format: \"file.section.option\")\n"
+#| "  27. a local variable in buffer\n"
+#| "  28. a hdata name/variable (the value is automatically converted to "
+#| "string), by default \"window\" and \"buffer\" point to current window/"
+#| "buffer.\n"
+#| "Format for hdata can be one of following:\n"
+#| "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
+#| "variables one after one (other hdata can be followed)\n"
+#| "  hdata[list].var1.var2...: start with a hdata using a list/pointer/"
+#| "pointer name, for example:\n"
+#| "    ${buffer[gui_buffers].full_name}: full name of first buffer in linked "
+#| "list of buffers\n"
+#| "    ${plugin[weechat_plugins].name}: name of first plugin in linked list "
+#| "of plugins\n"
+#| "  hdata[pointer].var1.var2...: start with a hdata using a pointer, for "
+#| "example:\n"
+#| "    ${buffer[0x1234abcd].full_name}: full name of the buffer with this "
+#| "pointer (can be used in triggers)\n"
+#| "    ${buffer[my_pointer].full_name}: full name of the buffer with this "
+#| "pointer name (can be used in triggers)\n"
+#| "For name of hdata and variables, please look at \"Plugin API reference\", "
+#| "function \"weechat_hdata_get\".\n"
+#| "\n"
+#| "Examples (simple strings):\n"
+#| "  /eval -n ${raw:${info:version}}                 ==> ${info:version}\n"
+#| "  /eval -n ${eval_cond:${window.win_width}>100}   ==> 1\n"
+#| "  /eval -n ${info:version}                        ==> 0.4.3\n"
+#| "  /eval -n ${env:HOME}                            ==> /home/user\n"
+#| "  /eval -n ${weechat.look.scroll_amount}          ==> 3\n"
+#| "  /eval -n ${sec.data.password}                   ==> secret\n"
+#| "  /eval -n ${window}                              ==> 0x2549aa0\n"
+#| "  /eval -n ${window.buffer}                       ==> 0x2549320\n"
+#| "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
+#| "  /eval -n ${window.buffer.number}                ==> 1\n"
+#| "  /eval -n ${\\t}                                  ==> <tab>\n"
+#| "  /eval -n ${lower:TEST}                          ==> test\n"
+#| "  /eval -n ${upper:test}                          ==> TEST\n"
+#| "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
+#| "  /eval -n ${cut:3,+,test}                        ==> tes+\n"
+#| "  /eval -n ${cut:+3,+,test}                       ==> te+\n"
+#| "  /eval -n ${date:%H:%M:%S}                       ==> 07:46:40\n"
+#| "  /eval -n ${if:${info:term_width}>80?big:small}  ==> big\n"
+#| "  /eval -n ${rev:Hello}                           ==> olleH\n"
+#| "  /eval -n ${repeat:5,-}                          ==> -----\n"
+#| "  /eval -n ${length:test}                         ==> 4\n"
+#| "  /eval -n ${split:1,,,abc,def,ghi}               ==> abc\n"
+#| "  /eval -n ${split:-1,,,abc,def,ghi}              ==> ghi\n"
+#| "  /eval -n ${split:count,,,abc,def,ghi}           ==> 3\n"
+#| "  /eval -n ${split:random,,,abc,def,ghi}          ==> def\n"
+#| "  /eval -n ${split_shell:1,\"arg 1\" arg2}          ==> arg 1\n"
+#| "  /eval -n ${split_shell:-1,\"arg 1\" arg2}         ==> arg2\n"
+#| "  /eval -n ${split_shell:count,\"arg 1\" arg2}      ==> 2\n"
+#| "  /eval -n ${split_shell:random,\"arg 1\" arg2}     ==> arg2\n"
+#| "  /eval -n ${calc:(5+2)*3}                        ==> 21\n"
+#| "  /eval -n ${random:0,10}                         ==> 3\n"
+#| "  /eval -n ${base_encode:64,test}                 ==> dGVzdA==\n"
+#| "  /eval -n ${base_decode:64,dGVzdA==}             ==> test\n"
+#| "  /eval -n ${translate:Plugin}                    ==> Extension\n"
+#| "  /eval -n ${define:len,${calc:5+3}}${len}x${len} ==> 8x8\n"
+#| "\n"
+#| "Examples (conditions):\n"
+#| "  /eval -n -c ${window.buffer.number} > 2 ==> 0\n"
+#| "  /eval -n -c ${window.win_width} > 100   ==> 1\n"
+#| "  /eval -n -c (8 > 12) || (5 > 2)         ==> 1\n"
+#| "  /eval -n -c (8 > 12) && (5 > 2)         ==> 0\n"
+#| "  /eval -n -c abcd =~ ^ABC                ==> 1\n"
+#| "  /eval -n -c abcd =~ (?-i)^ABC           ==> 0\n"
+#| "  /eval -n -c abcd =~ (?-i)^abc           ==> 1\n"
+#| "  /eval -n -c abcd !~ abc                 ==> 0\n"
+#| "  /eval -n -c abcd =* a*d                 ==> 1\n"
+#| "  /eval -n -c abcd =- bc                  ==> 1"
 msgid ""
 "        -n: display result without sending it to buffer (debug mode)\n"
 "        -s: split expression before evaluating it (many commands can be "
@@ -1643,43 +1797,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1710,6 +1866,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"
diff --git a/po/weechat.pot b/po/weechat.pot
index cc3b341ba..50bff51ac 100644
--- a/po/weechat.pot
+++ b/po/weechat.pot
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2022-10-15 22:42+0200\n"
+"POT-Creation-Date: 2022-11-06 09:02+0100\n"
 "PO-Revision-Date: 2014-08-16 10:27+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1330,43 +1330,45 @@ msgid ""
 "\n"
 "Some variables are replaced in expression, using the format ${variable}, "
 "variable can be, by order of priority:\n"
-"  1. the string itself without evaluation (format: \"raw:xxx\")\n"
-"  2. a user-defined variable (format: \"name\")\n"
-"  3. an evaluated sub-string (format: \"eval:xxx\")\n"
-"  4. an evaluated condition (format: \"eval_cond:xxx\")\n"
-"  5. a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
-"  6. a string converted to lower case (format: \"lower:xxx\")\n"
-"  7. a string converted to upper case (format: \"upper:xxx\")\n"
-"  8. a string with chars to hide (format: \"hide:char,string\")\n"
-"  9. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
-"+max,suffix,string\")\n"
+"  - the string itself without evaluation (format: \"raw:xxx\")\n"
+"  - a user-defined variable (format: \"name\")\n"
+"  - an evaluated sub-string (format: \"eval:xxx\")\n"
+"  - an evaluated condition (format: \"eval_cond:xxx\")\n"
+"  - a string with escaped chars (format: \"esc:xxx\" or \"\\xxx\")\n"
+"  - a string with a range of chars (format: \"chars:xxx\" or \"chars:c1-c2\" "
+"where \"xxx\" is one of: \"digit\", \"xdigit\", \"lower\", \"upper\", "
+"\"alpha\", \"alnum\")\n"
+"  - a string converted to lower case (format: \"lower:xxx\")\n"
+"  - a string converted to upper case (format: \"upper:xxx\")\n"
+"  - a string with chars to hide (format: \"hide:char,string\")\n"
+"  - a string with max chars (format: \"cut:max,suffix,string\" or \"cut:+max,"
+"suffix,string\")\n"
 "     or max chars displayed on screen (format: \"cutscr:max,suffix,string\" "
 "or \"cutscr:+max,suffix,string\")\n"
-"  10. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  11. a repeated string (format: \"repeat:count,string\")\n"
-"  12. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  13. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  14. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  15. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  - a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+"  - a repeated string (format: \"repeat:count,string\")\n"
+"  - length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+"  - split of a string (format: \"split:number,separators,flags,xxx\")\n"
+"  - split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+"  - a color (format: \"color:xxx\", see \"Plugin API reference\", function "
 "\"color\")\n"
-"  16. a modifier (format: \"modifier:name,data,string\")\n"
-"  17. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  18. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
-"xxx\" or \"base_decode:base,xxx\")\n"
-"  19. current date/time (format: \"date\" or \"date:format\")\n"
-"  20. an environment variable (format: \"env:XXX\")\n"
-"  21. a ternary operator (format: \"if:condition?value_if_true:"
+"  - a modifier (format: \"modifier:name,data,string\")\n"
+"  - an info (format: \"info:name,arguments\", arguments are optional)\n"
+"  - a base 16/32/64 encoded/decoded string (format: \"base_encode:base,xxx\" "
+"or \"base_decode:base,xxx\")\n"
+"  - current date/time (format: \"date\" or \"date:format\")\n"
+"  - an environment variable (format: \"env:XXX\")\n"
+"  - a ternary operator (format: \"if:condition?value_if_true:"
 "value_if_false\")\n"
-"  22. result of an expression with parentheses and operators + - * / // % ** "
+"  - result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  23. a random integer number (format: \"random:min,max\")\n"
-"  24. a translated string (format: \"translate:xxx\")\n"
-"  25. define a user variable (format: \"define:name,value\")\n"
-"  26. an option (format: \"file.section.option\")\n"
-"  27. a local variable in buffer\n"
-"  28. a hdata name/variable (the value is automatically converted to "
-"string), by default \"window\" and \"buffer\" point to current window/"
-"buffer.\n"
+"  - a random integer number (format: \"random:min,max\")\n"
+"  - a translated string (format: \"translate:xxx\")\n"
+"  - define a user variable (format: \"define:name,value\")\n"
+"  - an option (format: \"file.section.option\")\n"
+"  - a local variable in buffer\n"
+"  - a hdata name/variable (the value is automatically converted to string), "
+"by default \"window\" and \"buffer\" point to current window/buffer.\n"
 "Format for hdata can be one of following:\n"
 "  hdata.var1.var2...: start with a hdata (pointer must be known), and ask "
 "variables one after one (other hdata can be followed)\n"
@@ -1397,6 +1399,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${chars:digit}                         ==> 0123456789\n"
+"  /eval -n ${chars:J-T}                           ==> JKLMNOPQRST\n"
 "  /eval -n ${lower:TEST}                          ==> test\n"
 "  /eval -n ${upper:test}                          ==> TEST\n"
 "  /eval -n ${hide:-,${relay.network.password}}    ==> --------\n"