buflist: evaluate option buflist.look.sort (closes #1465)

The evaluation allows to use different sort for the bar items, for example with
such value:

    ${if:${bar_item.name}==buflist?number:short_name}

This sorts by number on the first bar item and by short name on the two other
bar items.

13 files changed, 66 insertions, 52 deletions

diff --git a/po/cs.po b/po/cs.po
index 0ca31ef85..59697f3e2 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2020-03-08 14:22+0100\n"
 "Last-Translator: Ondřej Súkup <mimi.vx@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -5036,7 +5036,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 
 msgid ""
diff --git a/po/de.po b/po/de.po
index d75507b60..e81336250 100644
--- a/po/de.po
+++ b/po/de.po
@@ -24,7 +24,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2020-04-03 20:03+0200\n"
 "Last-Translator: Nils Görs <weechatter@arcor.de>\n"
 "Language-Team: German <kde-i18n-de@kde.org>\n"
@@ -6095,13 +6095,15 @@ msgstr ""
 "benutzerdefinierte Variablen genutzt werden und dadurch eine Aktualisierung "
 "erforderlich wird"
 
+#, fuzzy
 msgid ""
 "comma-separated list of fields to sort buffers; each field is a hdata "
 "variable of buffer (\"var\"), a hdata variable of IRC server (\"irc_server."
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 "durch Kommata getrennte Liste von Feldern um die Buffer zu sortieren; jedes "
 "Feld ist entweder eine hdata Variable von Buffer (\"var\"), eine hdata "
diff --git a/po/es.po b/po/es.po
index 3a2193e0b..ac0a5a252 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2020-03-08 14:22+0100\n"
 "Last-Translator: Elián Hanisch <lambdae2@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -5236,7 +5236,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 
 msgid ""
diff --git a/po/fr.po b/po/fr.po
index f6eb2d08a..cd9287663 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: 2020-04-02 08:04+0200\n"
-"PO-Revision-Date: 2020-04-02 20:26+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
+"PO-Revision-Date: 2020-04-06 20:37+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
 "Language: fr\n"
@@ -5962,7 +5962,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 "liste de champs séparés par des virgules pour trier les tampons ; chaque "
 "champ est une variable hdata du tampon (\"var\"), une variable hdata du "
@@ -5970,7 +5971,9 @@ msgstr ""
 "(\"irc_channel.var\") ; le caractère \"-\" peut être utilisé pour inverser "
 "l'ordre, le caractère \"~\" peut être utilisé pour effectuer une comparaison "
 "insensible à la casse ; exemple : \"-~short_name\" pour un tri inverse "
-"insensible à la casse sur le nom court du tampon"
+"insensible à la casse sur le nom court du tampon (note : le contenu est "
+"évalué, seul le pointeur vers bar_item peut être utilisé, par exemple "
+"\"bar_item.name\")"
 
 msgid ""
 "format of each line with a buffer (note: content is evaluated, see /help "
diff --git a/po/hu.po b/po/hu.po
index 23c1f2e12..86bbc84c1 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2020-03-08 14:22+0100\n"
 "Last-Translator: Andras Voroskoi <voroskoi@frugalware.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -4574,7 +4574,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 
 msgid ""
diff --git a/po/it.po b/po/it.po
index 95c3d7631..b134720a0 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2020-03-08 14:22+0100\n"
 "Last-Translator: Esteban I. Ruiz Moreno <exio4.com@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -5371,7 +5371,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 
 msgid ""
diff --git a/po/ja.po b/po/ja.po
index 9c3d3f2db..828b19037 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2020-03-08 14:22+0100\n"
 "Last-Translator: AYANOKOUZI, Ryuunosuke <i38w7i3@yahoo.co.jp>\n"
 "Language-Team: Japanese <https://github.com/l/weechat/tree/master/"
@@ -5680,13 +5680,15 @@ msgstr ""
 "れは一部のカスタム変数が書式内で使われており、明示的に再読込が必要な場合に便"
 "利です"
 
+#, fuzzy
 msgid ""
 "comma-separated list of fields to sort buffers; each field is a hdata "
 "variable of buffer (\"var\"), a hdata variable of IRC server (\"irc_server."
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 "バッファをソートする際に考慮するフィールドのコンマ区切りリスト; 各フィールド"
 "はバッファの hdata 変数 (\"var\")、IRC サーバの hdata 変数 (\"irc_server.var"
diff --git a/po/pl.po b/po/pl.po
index 5bf5e5565..a4b28d53b 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2020-04-05 13:44+0200\n"
 "Last-Translator: Krzysztof Korościk <soltys@soltys.info>\n"
 "Language-Team: Polish <kde-i18n-doc@kde.org>\n"
@@ -30,8 +30,8 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10"
-" || n%100>=20) ? 1 : 2);\n"
+"Plural-Forms: nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 "
+"|| n%100>=20) ? 1 : 2);\n"
 "X-Generator: Lokalize 19.12.3\n"
 
 msgid "any string"
@@ -5674,9 +5674,9 @@ msgstr ""
 "  - dane elementu paska (pełną listę można znaleźć w dokumentacji API dla "
 "hdata \"bar_item\"), na przykład:\n"
 "    - ${bar_item.name}\n"
-" - dane okna, w którym element paska jest wyświetlany (okna nie ma w głównych "
-"paskach, zobacz hdata \"window\" w dokumentacji API dla pełnej listy "
-"zmiennych), na przykład:\n"
+" - dane okna, w którym element paska jest wyświetlany (okna nie ma w "
+"głównych paskach, zobacz hdata \"window\" w dokumentacji API dla pełnej "
+"listy zmiennych), na przykład:\n"
 "    - ${window.number}\n"
 "    - ${window.buffer.full_name}\n"
 "  - dane buforu (zobacz hdata \"buffer\" w dokumentacji API dla pełnej listy "
@@ -5815,13 +5815,15 @@ msgstr ""
 "ustawione są jakieś zmienne używane do formatowania wymagające odpowiedniego "
 "odświeżania"
 
+#, fuzzy
 msgid ""
 "comma-separated list of fields to sort buffers; each field is a hdata "
 "variable of buffer (\"var\"), a hdata variable of IRC server (\"irc_server."
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 "oddzielona przecinkami lista pól do sortowania buforów; każde pole to "
 "zmienna hdata bufora (\"var\"), zmienna hdata serwera IRC (\"irc_server.var"
@@ -6915,12 +6917,11 @@ msgid ""
 "evaluation of string and then much faster; formats can be switched with key "
 "ctrl+X"
 msgstr ""
-"pierwszy format dla każdej linii, użyty kiedy opcja fset.look.format_number"
-" ma "
-"wartość 1 (uwaga: zawartość jest przetwarzana, zobacz /help fset); pusty ciąg "
-"używa domyślnego formatu (\"${marked} ${name}  ${type}  ${value2}\"), który "
-"nie przetwarza ciągów, przez co jest szybszy; formaty można zmienić za pomocą "
-"ctrl-X"
+"pierwszy format dla każdej linii, użyty kiedy opcja fset.look.format_number "
+"ma wartość 1 (uwaga: zawartość jest przetwarzana, zobacz /help fset); pusty "
+"ciąg używa domyślnego formatu (\"${marked} ${name}  ${type}  ${value2}\"), "
+"który nie przetwarza ciągów, przez co jest szybszy; formaty można zmienić za "
+"pomocą ctrl-X"
 
 msgid ""
 "second format of each line, used when option fset.look.format_number is set "
@@ -6930,11 +6931,10 @@ msgid ""
 "ctrl+X"
 msgstr ""
 "drugi format dla każdej linii, użyty kiedy opcja fset.look.format_number ma "
-"wartość 2 (uwaga: zawartość jest przetwarzana, zobacz /help fset); pusty ciąg"
-" używa "
-"domyślnego formatu (\"${marked} ${name}  ${type}  ${value2}\"), który nie "
-"przetwarza ciągów, przez co jest szybszy; formaty można zmienić za pomocą "
-"ctrl-X"
+"wartość 2 (uwaga: zawartość jest przetwarzana, zobacz /help fset); pusty "
+"ciąg używa domyślnego formatu (\"${marked} ${name}  ${type}  ${value2}\"), "
+"który nie przetwarza ciągów, przez co jest szybszy; formaty można zmienić za "
+"pomocą ctrl-X"
 
 msgid "color for default value"
 msgstr "kolor dla wartości domyślnej"
@@ -9144,11 +9144,10 @@ msgid ""
 "evaluated with ${irc_server.xxx} and ${server} is replaced by the server "
 "name)"
 msgstr ""
-"hasło do klucza prywatnego certyfikatu SSL; tylko dla gnutls w wersji >="
-" 3.1.0 "
-"(uwaga: zawartość jest przetwarzana zobacz /help eval; opcje serwera są"
-" przetwarzane  "
-"w postaci ${irc_server.xxx},  ${server} jest zastępowany nazwą serwera)"
+"hasło do klucza prywatnego certyfikatu SSL; tylko dla gnutls w wersji >= "
+"3.1.0 (uwaga: zawartość jest przetwarzana zobacz /help eval; opcje serwera "
+"są przetwarzane  w postaci ${irc_server.xxx},  ${server} jest zastępowany "
+"nazwą serwera)"
 
 msgid ""
 "string with priorities for gnutls (for syntax, see documentation of function "
@@ -11528,9 +11527,8 @@ msgid ""
 "1 if automatic connection to servers is enabled, 0 if it has been disabled "
 "by the user (option \"-a\" or \"--no-connect\")"
 msgstr ""
-"1 jeśli automatycznie łączenie z serwerami jest włączone, 0 jeśli zostało"
-" wyłączone "
-"przez użytkownika (opcja \"-a\" lub \"--no-connect\")"
+"1 jeśli automatycznie łączenie z serwerami jest włączone, 0 jeśli zostało "
+"wyłączone przez użytkownika (opcja \"-a\" lub \"--no-connect\")"
 
 msgid "terminal charset"
 msgstr "kodowanie terminala"
diff --git a/po/pt.po b/po/pt.po
index ee76fa0e3..0e9186524 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2020-03-08 14:22+0100\n"
 "Last-Translator: Vasco Almeida <vascomalmeida@sapo.pt>\n"
 "Language-Team: Portuguese <>\n"
@@ -5645,7 +5645,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 
 msgid ""
diff --git a/po/pt_BR.po b/po/pt_BR.po
index f927bbab6..e5d8e4323 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2019-11-03 08:38+0100\n"
 "Last-Translator: Eduardo Elias <camponez@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -5187,7 +5187,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 
 msgid ""
diff --git a/po/ru.po b/po/ru.po
index fff7959c6..5b6f52db9 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2020-03-08 14:22+0100\n"
 "Last-Translator: Aleksey V Zapparov AKA ixti <ixti@member.fsf.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -4611,7 +4611,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 
 msgid ""
diff --git a/po/tr.po b/po/tr.po
index 213d19006..edf474d1e 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\n"
 "PO-Revision-Date: 2019-11-03 08:38+0100\n"
 "Last-Translator: Hasan Kiran <sunder67@hotmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -4181,7 +4181,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 
 msgid ""
diff --git a/po/weechat.pot b/po/weechat.pot
index fcee63b9f..2c83e405b 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: 2020-04-02 08:04+0200\n"
+"POT-Creation-Date: 2020-04-06 20:37+0200\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"
@@ -4165,7 +4165,8 @@ msgid ""
 "var\") or a hdata variable of IRC channel (\"irc_channel.var\"); char \"-\" "
 "can be used before field to reverse order, char \"~\" can be used to do a "
 "case insensitive comparison; example: \"-~short_name\" for case insensitive "
-"and reverse sort on buffer short name"
+"and reverse sort on buffer short name (note: content is evaluated, only the "
+"pointer to bar_item can be used, for example \"bar_item.name\")"
 msgstr ""
 
 msgid ""