core: add case conversion in evaluation of expressions (closes #1778)

1 files changed, 181 insertions, 28 deletions

diff --git a/po/sr.po b/po/sr.po
index 4d52df117..79e44e899 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: 2022-03-11 19:30+0100\n"
+"POT-Creation-Date: 2022-04-18 12:38+0200\n"
 "PO-Revision-Date: 2022-03-21 09:21+0400\n"
 "Last-Translator: Ivan Pešić <ivan.pesic@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -1641,6 +1641,156 @@ 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 with chars to hide (format: \"hide:char,string\")\n"
+#| "  7. 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"
+#| "  8. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
+#| "  9. a repeated string (format: \"repeat:count,string\")\n"
+#| "  10. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
+#| "  11. split of a string (format: \"split:number,separators,flags,xxx\")\n"
+#| "  12. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
+#| "  13. a color (format: \"color:xxx\", see \"Plugin API reference\", "
+#| "function \"color\")\n"
+#| "  14. a modifier (format: \"modifier:name,data,string\")\n"
+#| "  15. an info (format: \"info:name,arguments\", arguments are optional)\n"
+#| "  16. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
+#| "xxx\" or \"base_decode:base,xxx\")\n"
+#| "  17. current date/time (format: \"date\" or \"date:format\")\n"
+#| "  18. an environment variable (format: \"env:XXX\")\n"
+#| "  19. a ternary operator (format: \"if:condition?value_if_true:"
+#| "value_if_false\")\n"
+#| "  20. result of an expression with parentheses and operators + - * / // % "
+#| "** (format: \"calc:xxx\")\n"
+#| "  21. a random integer number (format: \"random:min,max\")\n"
+#| "  22. a translated string (format: \"translate:xxx\")\n"
+#| "  23. define a user variable (format: \"define:name,value\")\n"
+#| "  24. an option (format: \"file.section.option\")\n"
+#| "  25. a local variable in buffer\n"
+#| "  26. 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 ${hide:-,${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 "
@@ -1696,34 +1846,36 @@ msgid ""
 "  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 with chars to hide (format: \"hide:char,string\")\n"
-"  7. a string with max chars (format: \"cut:max,suffix,string\" or \"cut:"
+"  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"
-"  8. a reversed string (format: \"rev:xxx\" or \"revscr:xxx\")\n"
-"  9. a repeated string (format: \"repeat:count,string\")\n"
-"  10. length of a string (format: \"length:xxx\" or \"lengthscr:xxx\")\n"
-"  11. split of a string (format: \"split:number,separators,flags,xxx\")\n"
-"  12. split of shell argmuents (format: \"split_shell:number,xxx\")\n"
-"  13. a color (format: \"color:xxx\", see \"Plugin API reference\", function "
+"  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"
-"  14. a modifier (format: \"modifier:name,data,string\")\n"
-"  15. an info (format: \"info:name,arguments\", arguments are optional)\n"
-"  16. a base 16/32/64 encoded/decoded string (format: \"base_encode:base,"
+"  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"
-"  17. current date/time (format: \"date\" or \"date:format\")\n"
-"  18. an environment variable (format: \"env:XXX\")\n"
-"  19. a ternary operator (format: \"if:condition?value_if_true:"
+"  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"
-"  20. result of an expression with parentheses and operators + - * / // % ** "
+"  22. result of an expression with parentheses and operators + - * / // % ** "
 "(format: \"calc:xxx\")\n"
-"  21. a random integer number (format: \"random:min,max\")\n"
-"  22. a translated string (format: \"translate:xxx\")\n"
-"  23. define a user variable (format: \"define:name,value\")\n"
-"  24. an option (format: \"file.section.option\")\n"
-"  25. a local variable in buffer\n"
-"  26. a hdata name/variable (the value is automatically converted to "
+"  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"
@@ -1756,6 +1908,8 @@ msgid ""
 "  /eval -n ${window.buffer.full_name}             ==> core.weechat\n"
 "  /eval -n ${window.buffer.number}                ==> 1\n"
 "  /eval -n ${\\t}                                  ==> <tab>\n"
+"  /eval -n ${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"
@@ -8195,8 +8349,8 @@ msgid ""
 "add [<channel1> [<channel2>...]] || addraw <channel1>[,<channel2>...] "
 "[<key1>[,<key2>...]] || del [<channel1> [<channel2>...]] || save || sort"
 msgstr ""
-"add [<канал1> [<канал2>...]] || addraw <канал1>[,<канал2>...] "
-"[<кључ1>[,<кључ2>...]] || del [<кључ1> [<кључ2>...]] || save || sort"
+"add [<канал1> [<канал2>...]] || addraw <канал1>[,<канал2>...] [<кључ1>[,"
+"<кључ2>...]] || del [<кључ1> [<кључ2>...]] || save || sort"
 
 msgid ""
 "    add: add current channel or a list of channels (with optional keys) to "
@@ -8224,8 +8378,8 @@ msgstr ""
 "   add: додаје текући канал или листу канала ( са необавезним кључевима) у "
 "autojoin опцију; ако се налазите на каналу и не наведете кључ, он се чита са "
 "канала\n"
-"addraw: користи се IRC сирови формат (исто као за /join команду): сви "
-"канали су раздвојени запетама, небавезни кључеви су раздвојени запетама\n"
+"addraw: користи се IRC сирови формат (исто као за /join команду): сви канали "
+"су раздвојени запетама, небавезни кључеви су раздвојени запетама\n"
 "   del: брише текући канал или листу канала из autojoin опције\n"
 " канал: име канала\n"
 "  кључ: кључ за канал\n"
@@ -9541,8 +9695,7 @@ msgstr "канали на свим IRC серверима"
 msgid ""
 "channels automatically joined on the current server (option \"autojoin\")"
 msgstr ""
-"канали на текућем серверу којима се аутоматски приступа (опција "
-"„autojoin”)"
+"канали на текућем серверу којима се аутоматски приступа (опција „autojoin”)"
 
 msgid "privates on all IRC servers"
 msgstr "приватни разговори на свим IRC серверима"