core: fix typos in German translations

Open theme files directly instead of probing them with access() first in
commands /theme apply, /theme rename and /theme info. The renamed file is
now created with O_CREAT | O_EXCL so an existing theme is never clobbered.

CHANGELOG.md

@@ -17,12 +17,12 @@ SPDX-License-Identifier: GPL-3.0-or-later
 
 ### Added
 
-- core: add command `/theme`
+- core: add command `/theme` ([#1338](https://github.com/weechat/weechat/issues/1338))
-- core: add built-in "light" theme, applied automatically on first start on light-background terminals
+- core: add built-in "light" theme, applied automatically on first start on light-background terminals ([#1338](https://github.com/weechat/weechat/issues/1338))
-- core: add `themable` flag on configuration options
+- core: add `themable` flag on configuration options ([#1338](https://github.com/weechat/weechat/issues/1338))
-- core: add options weechat.look.theme and weechat.look.theme_backup
+- core: add options weechat.look.theme and weechat.look.theme_backup ([#1338](https://github.com/weechat/weechat/issues/1338))
-- api: add function theme_register
+- api: add function theme_register ([#1338](https://github.com/weechat/weechat/issues/1338))
-- fset: add filter `t:themable`
+- fset: add filter `t:themable` ([#1338](https://github.com/weechat/weechat/issues/1338))
 - relay/api: add resource `GET /api/scripts`
 - relay: add option relay.network.unix_socket_permissions ([#2317](https://github.com/weechat/weechat/issues/2317))
 - script: add info "script_languages"
@@ -31,7 +31,10 @@ SPDX-License-Identifier: GPL-3.0-or-later
 
 - core: fix option weechat.look.color_real_white not applied when color is "white" on 16+ colors terminals ([#1742](https://github.com/weechat/weechat/issues/1742))
 - core: fix buffer overflow in connection to SOCKS5 proxy ([#2325](https://github.com/weechat/weechat/issues/2325))
+- core: fix possible buffer overflow in command /color alias ([#2330](https://github.com/weechat/weechat/issues/2330))
+- core: fix possible buffer overflow in list of commands displayed by /help ([#2330](https://github.com/weechat/weechat/issues/2330))
 - api: fix infinite loop in function string_replace when the search string is empty
+- api: do not free dynamic string on error in function string_dyn_concat
 - irc: fix tag in message with list of names when joining a channel
 - fset: remove error displayed in core buffer when clicking with the mouse below the last option displayed
 - guile, lua, perl, python, ruby, tcl: fix conversion of dates in the API functions
@@ -43,13 +46,25 @@ SPDX-License-Identifier: GPL-3.0-or-later
 - relay: limit size of partial message received while reading an HTTP request to prevent memory exhaustion
 - relay: fix timing attack on password authentication ([GHSA-vhv8-g2r9-cwcc](https://github.com/weechat/weechat/security/advisories/GHSA-vhv8-g2r9-cwcc), [CVE-2026-53525](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-53525))
 - relay: fix out-of-bounds read in dump of data ([#2324](https://github.com/weechat/weechat/issues/2324))
-- relay/api: fix memory leak in resources "handshake", "input" and "completion"
+- relay/api: fix memory leak in resources "handshake", "input" and "completion" ([GHSA-wmpc-m6g9-fwj8](https://github.com/weechat/weechat/security/advisories/GHSA-wmpc-m6g9-fwj8))
 - relay: fix read of uncompressed websocket frame ([#2331](https://github.com/weechat/weechat/issues/2331))
 - api, relay: fix timing attack on TOTP validation ([GHSA-vhv8-g2r9-cwcc](https://github.com/weechat/weechat/security/advisories/GHSA-vhv8-g2r9-cwcc), [CVE-2026-53525](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-53525))
 - xfer: replace directory separator in remote nick by underscore in download filename to prevent writing the file outside the download directory ([#2321](https://github.com/weechat/weechat/issues/2321))
 - xfer: fix out-of-bounds read when receiving empty line in DCC chat ([#2323](https://github.com/weechat/weechat/issues/2323))
 - xfer: fix out-of-bounds write in xfer file transfer resume ([#2326](https://github.com/weechat/weechat/issues/2326))
 
+## Version 4.9.3 (2026-07-05)
+
+### Fixed
+
+- core: fix buffer overflow in connection to SOCKS5 proxy ([#2325](https://github.com/weechat/weechat/issues/2325))
+- core: fix possible buffer overflow in command /color alias ([#2330](https://github.com/weechat/weechat/issues/2330))
+- core: fix possible buffer overflow in list of commands displayed by /help ([#2330](https://github.com/weechat/weechat/issues/2330))
+- api: do not free dynamic string on error in function string_dyn_concat
+- relay/api: fix memory leak in resources "handshake", "input" and "completion" ([GHSA-wmpc-m6g9-fwj8](https://github.com/weechat/weechat/security/advisories/GHSA-wmpc-m6g9-fwj8))
+- relay: fix read of uncompressed websocket frame ([#2331](https://github.com/weechat/weechat/issues/2331))
+- xfer: fix out-of-bounds write in xfer file transfer resume ([#2326](https://github.com/weechat/weechat/issues/2326))
+
 ## Version 4.9.2 (2026-06-07)
 
 ### Fixed

doc/en/weechat_plugin_api.en.adoc

@@ -3474,6 +3474,8 @@ Concatenate a string to a dynamic string.
 The pointer _*string_ can change if the string is reallocated (if there is
 not enough space to concatenate the string).
 
+In case of error, the dynamic string is left unchanged.
+
 Prototype:
 
 [source,c]

doc/fr/weechat_plugin_api.fr.adoc

@@ -3532,6 +3532,8 @@ Concaténer une chaîne dans une chaîne dynamique.
 Le pointeur _*string_ peut changer si la chaîne est réallouée (s'il n'y a pas
 assez de place pour concaténer la chaîne).
 
+En cas d'erreur, la chaîne dynamique reste inchangée.
+
 Prototype :
 
 [source,c]

doc/it/weechat_plugin_api.it.adoc

@@ -3635,6 +3635,9 @@ Concatenate a string to a dynamic string.
 The pointer _*string_ can change if the string is reallocated (if there is
 not enough space to concatenate the string).
 
+// TRANSLATION MISSING
+In case of error, the dynamic string is left unchanged.
+
 Prototipo:
 
 [source,c]

doc/ja/weechat_plugin_api.ja.adoc

@@ -3586,6 +3586,9 @@ _WeeChat バージョン 1.8 以上で利用可, updated in 3.0_
 文字列が再確保された場合 (文字列を連結するのに十分なサイズが確保されていなかった場合)
 にはポインタ _*string_ が変わる可能性があります。
 
+// TRANSLATION MISSING
+In case of error, the dynamic string is left unchanged.
+
 プロトタイプ:
 
 [source,c]

doc/sr/weechat_plugin_api.sr.adoc

@@ -3356,6 +3356,9 @@ _WeeChat ≥ 1.8, ажурирано у верзији 3.0._
 
 Показивач на стринг _*string_ може да се промени ако се стринг реалоцира (у случају да нема довољно простора за надовезивање стринга).
 
+// TRANSLATION MISSING
+In case of error, the dynamic string is left unchanged.
+
 Прототип:
 
 [source,c]

po/cs.po

@@ -23,8 +23,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-05-30 14:01+0200\n"
+"PO-Revision-Date: 2026-07-05 12:29+0200\n"
 "Last-Translator: Ondřej Súkup <mimi.vx@gmail.com>\n"
 "Language-Team: Czech <weechat-dev@nongnu.org>\n"
 "Language: cs\n"
@@ -6364,11 +6364,6 @@ msgstr ""
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr "%sUpozornění: %s, řádek %d: neznámý identifikátor sekce (\"%s\")"
 
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: nemůžu parsovat soubor \"%s\""
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/de.po

@@ -26,8 +26,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-06-28 08:28+0200\n"
+"PO-Revision-Date: 2026-07-05 19:16+0200\n"
 "Last-Translator: Nils Görs <weechatter@arcor.de>\n"
 "Language-Team: German <weechatter@arcor.de>\n"
 "Language: de\n"
@@ -41,16 +41,15 @@ msgstr ""
 
 #. TRANSLATORS: command line option "-a", "--no-connect"
 msgid "disable auto-connect to servers at startup"
-msgstr ""
+msgstr "deaktiviert das automatische Verbinden mit den Servern beim Start"
-"deaktiviert das automatische Verbinden mit den Servern beim Start von WeeChat"
 
 #. TRANSLATORS: command line option "-c", "--colors"
 msgid "display default colors in terminal and exit"
-msgstr "zeigt die Standardfarben des Terminals an"
+msgstr "Standardfarben im Terminal anzeigen und beenden"
 
 #. TRANSLATORS: only "<path>" may be translated
 msgid "-d, --dir <path>"
-msgstr "-d, --dir <Pfad>"
+msgstr "-d, --dir <path>"
 
 #. TRANSLATORS: command line option "-d", "--dir <path>"
 msgid ""
@@ -1003,54 +1002,52 @@ msgstr "Einstellung erstellt: "
 msgid "%sFunction \"%s\" is not available on this system"
 msgstr "%sFunktion \"%s\" ist auf dem Rechner nicht verfügbar"
 
-#, fuzzy
-#| msgid "not available"
 msgid "No theme available"
-msgstr "nicht verfügbar"
+msgstr "Kein Design verfügbar"
 
 msgid "Themes:"
-msgstr ""
+msgstr "Design:"
 
 #, c-format
 msgid "  %s %s%s%s (file)"
-msgstr ""
+msgstr "  %s %s%s%s (Datei)"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%sKey \"%s\" not found"
 msgid "%sTheme \"%s\" not found"
-msgstr "%sTastenbelegung \"%s\" nicht gefunden"
+msgstr "%sDesign \"%s\" nicht gefunden"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "Option \"%s%s%s\":"
 msgid "Theme \"%s%s%s\":"
-msgstr "Einstellung \"%s%s%s\":"
+msgstr "Design \"%s%s%s\":"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "    file: %s"
 msgid "  source: %s"
-msgstr "    Datei: %s"
+msgstr "  Quelle: %s"
 
 msgid "  source: built-in (in-memory)"
-msgstr ""
+msgstr "  Quelle: integriert (im Arbeitsspeicher)"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "description"
 msgid "  description: %s"
-msgstr "Beschreibung"
+msgstr "  Beschreibung: %s"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "    file: %s"
 msgid "  date: %s"
-msgstr "    Datei: %s"
+msgstr "  Datum: %s"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "WeeChat version"
 msgid "  WeeChat version: %s"
-msgstr "WeeChat-Version"
+msgstr "  WeeChat Version: %s"
 
 #, c-format
 msgid "  overrides: %d"
-msgstr ""
+msgstr "  überschreibt: %d"
 
 #, c-format
 msgid "%sFailed to unset option \"%s\""
@@ -4099,18 +4096,18 @@ msgstr ""
 msgid "number: number of processes to clean"
 msgstr "Anzahl: Anzahl der zu bereinigenden Prozesse"
 
-#, fuzzy
 #| msgid "manage custom bar items"
 msgid "manage color themes"
-msgstr "Verwalten von benutzerdefinierten Bar-Items"
+msgstr "Farbdesigns verwalten"
 
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
 msgid ""
 "[list [-backups]] || apply <name> || reset || save <name> || rename <old> "
 "<new> || del <name> || info <name>"
 msgstr ""
+"[list [-backups]] || apply <name> || reset || save <name> || rename <old> "
+"<new> || del <name> || info <name>"
 
-#, fuzzy
 #| msgid ""
 #| "raw[list]: list remote relay servers (without argument, this list is "
 #| "displayed)"
@@ -4119,57 +4116,70 @@ msgid ""
 "configuration directory; the active theme (matching weechat.look.theme) is "
 "marked with \"->\""
 msgstr ""
-"raw[list]: listet relay-Server auf (ohne Angabe von Argumente wird diese "
+"raw[list]: Listet registrierte Themes sowie alle *.theme-Dateien im WeeChat-"
-"Liste standardmäßig ausgegeben)"
+"Konfigurationsverzeichnis auf; das aktive Design (entsprechend "
+"weechat.look.theme) ist mit \"->\" gekennzeichnet"
 
-#, fuzzy
 #| msgid "raw[tags]: display tags for lines"
 msgid "raw[-backups]: display backup theme files"
-msgstr ""
+msgstr "raw[-backups]: Backup-Design-Dateien anzeigen"
-"raw[tags]: schaltet für jede Zeile die dazugehörigen Schlagwörter an / aus"
 
 msgid ""
 "raw[apply]: apply a theme (set every themable option to the value from the "
 "theme); if a file named <name>.theme exists in directory \"themes\" it "
 "shadows any built-in theme of the same name"
 msgstr ""
+"raw[apply]: ein Design anwenden (jede anpassbare Option auf den Wert aus dem "
+"Theme setzen); existiert eine Datei namens <name>.theme im Verzeichnis "
+"\"themes\", so überlagert sie ein etwaiges eingebautes Theme gleichen Namens"
 
 msgid ""
 "raw[reset]: reset every themable option to its default value (restores the "
 "original look shipped with WeeChat)"
 msgstr ""
+"raw[reset]: Setzt alle anpassbaren Optionen auf ihren Standardwert zurück "
+"(stellt das ursprüngliche, mit WeeChat ausgelieferte Erscheinungsbild wieder "
+"her)"
 
 msgid ""
 "raw[save]: save current themable options to a file <name>.theme in directory "
 "\"themes\"; every themable option is written, so the file is self-contained; "
 "the name must not match a built-in theme or start with \"backup-\""
 msgstr ""
+"raw[save]: Speichert die aktuellen anpassbaren Optionen in einer Datei "
+"namens <name>.theme im Verzeichnis \"themes\"; dabei werden alle anpassbaren "
+"Optionen geschrieben, sodass die Datei in sich abgeschlossen ist; der Name "
+"darf nicht mit dem eines integrierten Design übereinstimmen und nicht mit "
+"\"backup-\" beginnen"
 
-#, fuzzy
 #| msgid "raw[rename]: rename a filter"
 msgid "raw[rename]: rename a user theme file"
-msgstr "raw[rename]: benennt einen Filter um"
+msgstr "raw[rename]: Umbenennen einer Benutzer-Design-Datei"
 
-#, fuzzy
 #| msgid "raw[del]: delete a server"
 msgid "raw[del]: delete a user theme file"
-msgstr "raw[del]: entfernt einen Server"
+msgstr "raw[del]: löschen einer Benutzer-Design-Datei"
 
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
 msgstr ""
+"raw[info]: Details zu einem Theme anzeigen (Name, Beschreibung, "
+"Erstellungsdatum, WeeChat-Version, Anzahl der überschriebenen Optionen)"
 
-#, fuzzy
 #| msgid "name: name of trigger"
 msgid "name: name of a theme"
-msgstr "name: Name des Triggers"
+msgstr "name: Name eines Themes/Designs"
 
 msgid ""
 "Themes are named bundles of option overrides. Built-in themes are registered "
 "in memory by core/plugins/scripts; user themes are read from files in "
 "directory \"themes\" inside the WeeChat configuration directory."
 msgstr ""
+"Themes sind Pakete von Options-Überschreibungen. Integrierte Themes werden "
+"von core/Erweiterungen/Skripts im Arbeitsspeicher registriert; "
+"benutzerdefinierte Themes werden aus Dateien im Unterverzeichnis \"themes\" "
+"des WeeChat-Konfigurationsverzeichnisses geladen."
 
 msgid ""
 "By default, `/theme apply` command creates a backup of current themable "
@@ -4178,6 +4188,11 @@ msgid ""
 "backup-<timestamp>`. This is controlled by the option "
 "weechat.look.theme_backup."
 msgstr ""
+"Standardmäßig erstellt der Befehl `/theme apply` vor der Anwendung ein "
+"Backup der aktuellen, anpassbaren Werte im Verzeichnis \"themes\" "
+"(Dateiname: \"backup-<Zeitstempel>.theme\"); der vorherige Zustand lässt "
+"sich mit `/theme apply backup-<Zeitstempel>` wiederherstellen. Dies wird "
+"über die Option weechat.look.theme_backup gesteuert."
 
 msgid "toggle value of a config option"
 msgstr "den Wert einer Konfigurationsoption umschalten"
@@ -4837,13 +4852,17 @@ msgid "names of layouts"
 msgstr "Namen der Layouts"
 
 msgid "names of themes (built-ins + user files + backups)"
-msgstr ""
+msgstr "Namen der Themes (integrierte Themes + Benutzerdateien + Backups)"
 
 msgid "names of user theme files (without built-ins and backups)"
 msgstr ""
+"Namen der benutzerdefinierten Themendateien (ohne integrierte Dateien und "
+"Backups)"
 
 msgid "names of theme files on disk (user files + backups, no built-ins)"
 msgstr ""
+"Namen der Theme-Dateien auf dem Datenträger (Benutzerdateien + Backups, "
+"keine integrierten Dateien)"
 
 msgid "names of secured data (file sec.conf, section data)"
 msgstr "Namen der geschützten Daten (Datei sec.conf, section data)"
@@ -6062,6 +6081,9 @@ msgid ""
 "not change manually); informational only, the theme is not re-applied at "
 "startup"
 msgstr ""
+"Name des zuletzt mit dem Befehl /theme angewendeten Design (wird automatisch "
+"gesetzt, nicht manuell ändern); dient nur zur Information, das Design wird "
+"beim Start nicht erneut angewendet"
 
 msgid ""
 "create a backup theme file with the current themable options before applying "
@@ -6070,6 +6092,13 @@ msgid ""
 "\"themes\" inside the WeeChat configuration directory and can be restored "
 "with the command: `/theme apply backup-<timestamp>`"
 msgstr ""
+"Erstellen Sie eine Backup-Datei des Themes mit den aktuellen anpassbaren "
+"Optionen, bevor Sie ein Theme mit dem Befehl /theme anwenden; falls die "
+"Backup-Datei nicht geschrieben werden kann, wird der Vorgang abgebrochen (es "
+"werden keine Optionen geändert). Die Backup-Datei wird im Verzeichnis "
+"\"themes\" innerhalb des WeeChat-Konfigurationsverzeichnisses gespeichert "
+"und kann mit dem Befehl `/theme apply backup-<Zeitstempel>` "
+"wiederhergestellt werden"
 
 msgid ""
 "time format for dates converted to strings and displayed in messages (see "
@@ -7170,120 +7199,118 @@ msgid "Resource usage (see \"man getrusage\" for help):"
 msgstr "Ressourcennutzung (siehe „man getrusage“ für Hilfe):"
 
 msgid "WeeChat default theme for light-background terminals"
-msgstr ""
+msgstr "WeeChat-Standarddesign für Terminals mit hellem Hintergrund"
 
 msgid "Automatic backup"
-msgstr ""
+msgstr "Automatische Datensicherung"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%sKey \"%s\" not found"
 msgid "%sTheme: option \"%s\" not found, skipped"
-msgstr "%sTastenbelegung \"%s\" nicht gefunden"
+msgstr "%sTheme: Option \"%s\" nicht gefunden, übersprungen"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%s: script \"%s\" is not installed"
 msgid "%sTheme: option \"%s\" is not themable, skipped"
-msgstr "%s: Skript \"%s\" ist nicht installiert"
+msgstr "%sTheme: Option \"%s\" ist nicht anpassbar, übersprungen"
 
 #, c-format
 msgid "%s%s: line %d: malformed section header"
-msgstr ""
+msgstr "%s%s: Zeile %d: fehlerhafter Kopf der Sektion"
 
-#, fuzzy, c-format
+#, c-format
-#| msgid "%sWarning: %s, line %d: ignoring unknown section identifier (\"%s\")"
 msgid "%s%s: line %d: ignoring unknown section \"%s\""
-msgstr "%sWarnung: %s, Zeile %d: unbekannte Sektion wird ignoriert (\"%s\")"
+msgstr "%s%s: Zeile %d: unbekannte Sektion \"%s\" wird ignoriert"
 
 #, c-format
 msgid "%s%s: line %d: missing '=' separator"
-msgstr ""
+msgstr "%s%s: Zeile %d: fehlendes '=' Trennzeichen"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid ""
 #| "%sWarning: %s, line %d: ignoring unknown option for section \"%s\": %s"
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
-msgstr ""
+msgstr "%s%s: Zeile %d: unbekannter [info] Schlüssel \"%s\" wird ignoriert"
-"%sWarnung: %s, Zeile %d: ignoriert unbekannte Einstellung für Sektion "
-"\"%s\": %s"
-
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: Datei \"%s\" Analyse nicht möglich"
 
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "
 "weechat.look.theme_backup to force)"
 msgstr ""
+"%sSicherung des Design konnte nicht erstellt werden; Anwenden abgebrochen "
+"(Option wechat.look.theme_backup deaktivieren, um den Vorgang zu erzwingen)"
 
 #, c-format
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""
+"Vorheriger Zustand als Design \"%s\" gespeichert; zum Wiederherstellen: /"
+"theme apply %s"
 
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting reset (disable option "
 "weechat.look.theme_backup to force)"
 msgstr ""
+"%sTheme-Sicherung konnte nicht erstellt werden; Zurücksetzen wird "
+"abgebrochen (Option wechat.look.theme_backup deaktivieren, um den Vorgang zu "
+"erzwingen)"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
 msgid "%sName \"%s\" is reserved for automatic backups"
-msgstr "%sDer Buffer-Name \"%s\" ist für WeeChat reserviert"
+msgstr "%sName \"%s\" ist für automatische Sicherungen reserviert"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
 msgid "%sName \"%s\" is reserved for a built-in theme"
-msgstr "%sDer Buffer-Name \"%s\" ist für WeeChat reserviert"
+msgstr "%sName \"%s\" ist reserviert für ein integriertes Design"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%s%s: unable to parse file \"%s\""
 msgid "%sFailed to save theme \"%s\""
-msgstr "%s%s: Datei \"%s\" Analyse nicht möglich"
+msgstr "%sSpeichern des Designs \"%s\" fehlgeschlagen"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "Option \"%s%s%s\":"
 msgid "Theme saved to: %s"
-msgstr "Einstellung \"%s%s%s\":"
+msgstr "Design gespeichert unter: %s"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%sCannot create file \"%s\""
 msgid "%sCannot rename built-in theme \"%s\""
-msgstr "%sDie Datei \"%s\" kann nicht erstellt werden"
+msgstr "%sIntegriertes Design \"%s\" kann nicht umbenannt werden"
 
 #, c-format
 msgid "%sNew name is the same as old name"
-msgstr ""
+msgstr "%sDer neue Name ist derselbe wie der alte Name"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%sBar \"%s\" already exists"
 msgid "%sTheme \"%s\" already exists"
-msgstr "%sBar \"%s\" existiert bereits"
+msgstr "%sDesign \"%s\" existiert schon"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%sUnable to rename filter \"%s\" to \"%s\""
 msgid "%sFailed to rename theme \"%s\" to \"%s\""
-msgstr "%sUmbenennung des Filters von \"%s\" in \"%s\" nicht möglich"
+msgstr "%sUmbenennung des Design \"%s\" zu \"%s\" fehlgeschlagen"
 
-#, fuzzy, c-format
+#, c-format
-#| msgid "Trigger \"%s\" renamed to \"%s\""
 msgid "Theme \"%s\" renamed to \"%s\""
-msgstr "Trigger \"%s\" wurde umbenannt. Der neue Name lautet \"%s\""
+msgstr "Design \"%s\" umbenannt zu \"%s\""
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%sCannot create file \"%s\""
 msgid "%sCannot delete built-in theme \"%s\""
-msgstr "%sDie Datei \"%s\" kann nicht erstellt werden"
+msgstr "%sIntegriertes Design \"%s\" kann nicht gelöscht werden"
 
-#, fuzzy, c-format
+#, c-format
 #| msgid "%s%s: unable to parse file \"%s\""
 msgid "%sFailed to delete theme \"%s\""
-msgstr "%s%s: Datei \"%s\" Analyse nicht möglich"
+msgstr "%sDas Design \"%s\" konnte nicht gelöscht werden"
 
 #, c-format
 msgid "Theme deleted: %s"
-msgstr ""
+msgstr "Design gelöscht: %s"
 
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
@@ -7448,35 +7475,46 @@ msgid "WeeChat is running in headless mode (ctrl-c to quit)."
 msgstr "WeeChat läuft im Hintergrundmodus (ctrl-c zum Beenden)."
 
 msgid "Welcome to WeeChat!"
-msgstr ""
+msgstr "Willkommen bei WeeChat!"
 
 msgid ""
 "If you are discovering WeeChat, it is recommended to read at least the "
 "quickstart guide, and the user's guide if you have some time; they explain "
 "main WeeChat concepts."
 msgstr ""
+"Wenn Sie WeeChat gerade erst kennenlernen, empfiehlt es sich, zumindest die "
+"Schnellstartanleitung zu lesen – und bei Gelegenheit auch das "
+"Benutzerhandbuch –, da darin die grundlegenden Konzepte von WeeChat "
+"erläutert werden."
 
 #, c-format
 msgid "All WeeChat docs are available at: %s"
-msgstr ""
+msgstr "Alle WeeChat-Dokumente sind verfügbar unter: %s"
 
 msgid ""
 "Moreover, there is inline help with /help on all commands and options (use "
 "Tab key to complete the name)."
 msgstr ""
+"Darüber hinaus steht für alle Befehle und Optionen eine integrierte Hilfe "
+"mittels /help zur Verfügung (verwenden Sie die Tab-Taste, um den Namen zu "
+"vervollständigen)."
 
 msgid "The command /fset can help to customize WeeChat."
-msgstr ""
+msgstr "Der Befehl /fset kann dabei helfen, WeeChat anzupassen."
 
 msgid ""
 "You can add and connect to an IRC server with /server and /connect commands "
 "(see /help server)."
 msgstr ""
+"Sie können einen IRC-Server hinzufügen und sich mit ihm verbinden, indem Sie "
+"die Befehle /server und /connect verwenden (siehe /help server)."
 
 msgid ""
 "The \"light\" theme will be automatically applied. Use /theme reset to "
 "switch back to the default dark theme."
 msgstr ""
+"Ein \"helles\" Design wird automatisch angewendet. Verwende /theme reset, um "
+"zum standardmäßigen dunklen Design zurückzukehren."
 
 #. TRANSLATORS: the "under %s" can be "under screen" or "under tmux"
 #, c-format
@@ -9303,17 +9341,15 @@ msgstr "> `xxx`: zeigt nur Optionen mit \"xxx\" im Namen"
 msgid "> `f:xxx`: show only configuration file \"xxx\""
 msgstr "> `f:xxx`: zeigt nur Konfigurationsdatei \"xxx\" an"
 
-#, fuzzy
-#| msgid ""
-#| "> `t:xxx`: show only type \"xxx\" (bool/int/str/col/enum or boolean/"
-#| "integer/string/color/enum)"
 msgid ""
 "> `t:xxx`: show only type \"xxx\" (bool/int/str/col/enum or boolean/integer/"
 "string/color/enum); the special value \"themable\" can be used to show all "
 "options that can be used in themes, regardless of type"
 msgstr ""
 "> `t:xxx`: zeigt nur Optionen des entsprechenden Typs, \"xxx\" (bool/int/str/"
-"col/enum oder boolean/Ganzzahl/Zeichenkette/Farbe/Aufzählung)"
+"col/enum oder boolean/Ganzzahl/Zeichenkette/Farbe/Aufzählung); Der spezielle "
+"Wert \"themable\" kann verwendet werden, um alle Optionen anzuzeigen, die in "
+"Themes genutzt werden können – unabhängig vom Typ"
 
 msgid "> `d`: show only changed options"
 msgstr "> `d`: zeigt nur Optionen, die verändert wurden"

po/es.po

@@ -24,8 +24,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-06-28 08:46+0200\n"
+"PO-Revision-Date: 2026-07-05 12:29+0200\n"
 "Last-Translator: Santiago Forero <santiago@forero.xyz>\n"
 "Language-Team: Spanish <weechat-dev@nongnu.org>\n"
 "Language: es\n"
@@ -6522,11 +6522,6 @@ msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr ""
 "%sAtención: %s, línea %d: opción desconocida para la sección \"%s\": %s"
 
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: no es posible analizar el archivo \"%s\""
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/fr.po

@@ -23,8 +23,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-07-04 22:02+0200\n"
+"PO-Revision-Date: 2026-07-05 12:28+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: French <flashcode@flashtux.org>\n"
 "Language: fr\n"
@@ -7087,10 +7087,6 @@ msgstr "%s%s : ligne %d : séparateur '=' manquant"
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr "%s%s : ligne %d : clé [info] \"%s\" inconnue, ignorée"
 
-#, c-format
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%sÉchec de l'analyse du fichier de thème \"%s\""
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "
@@ -19043,51 +19039,3 @@ msgid ""
 msgstr ""
 "%s%s : impossible d'accepter de continuer le fichier \"%s\" (port : %d, "
 "position de départ : %llu) : xfer non trouvé ou non prêt pour le transfert"
-
-#~ msgid "Automatic backup written before /theme apply"
-#~ msgstr "Sauvegarde automatique écrite avant /theme apply"
-
-#~ msgid ""
-#~ "Welcome to WeeChat!\n"
-#~ "\n"
-#~ "If you are discovering WeeChat, it is recommended to read at least the "
-#~ "quickstart guide, and the user's guide if you have some time; they "
-#~ "explain main WeeChat concepts.\n"
-#~ "All WeeChat docs are available at: https://weechat.org/doc/\n"
-#~ "\n"
-#~ "Moreover, there is inline help with /help on all commands and options "
-#~ "(use Tab key to complete the name).\n"
-#~ "The command /fset can help to customize WeeChat.\n"
-#~ "\n"
-#~ "You can add and connect to an IRC server with /server and /connect "
-#~ "commands (see /help server)."
-#~ msgstr ""
-#~ "Bienvenue dans WeeChat !\n"
-#~ "\n"
-#~ "Si vous découvrez WeeChat, il est recommandé de lire au moins le guide de "
-#~ "démarrage rapide, et le guide utilisateur si vous avez le temps ; ils "
-#~ "expliquent les concepts principaux de WeeChat.\n"
-#~ "Toutes les documentations WeeChat sont disponibles ici : https://"
-#~ "weechat.org/doc/\n"
-#~ "\n"
-#~ "De plus, il y a de l'aide en ligne avec /help sur toutes les commandes et "
-#~ "options (utilisez la touche Tab pour compléter le nom).\n"
-#~ "La commande /fset peut aider à paramétrer WeeChat.\n"
-#~ "\n"
-#~ "Vous pouvez ajouter et vous connecter à un serveur IRC avec les "
-#~ "commandes /server et /connect (voir /help server)."
-
-#~ msgid ""
-#~ "raw[delete]: delete a user theme file (refuses to delete built-in themes, "
-#~ "which have no file)"
-#~ msgstr "raw[delete] : supprimer un fichier thème de l'utilisateur"
-
-#~ msgid "No theme registered"
-#~ msgstr "Aucun thème enregistré"
-
-#~ msgid ""
-#~ "raw[list]: list registered themes (default action with no argument); "
-#~ "active theme is marked with \"->\""
-#~ msgstr ""
-#~ "raw[list] : afficher les thèmes enregistrés (sans paramètre, cette liste "
-#~ "est affichée), le thème actif est marqué avec \"->\""

po/hu.po

@@ -22,8 +22,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-03-08 08:59+0100\n"
+"PO-Revision-Date: 2026-07-05 12:28+0200\n"
 "Last-Translator: Andras Voroskoi <voroskoi@frugalware.org>\n"
 "Language-Team: Hungarian <weechat-dev@nongnu.org>\n"
 "Language: hu\n"
@@ -6030,10 +6030,6 @@ msgstr ""
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr "%s %s, %d. sor: ismeretlen csoportazonosító (\"%s\")\n"
 
-#, fuzzy, c-format
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "Nem sikerült a(z) \"%s\" naplófájlt írni\n"
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/it.po

@@ -22,8 +22,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-05-30 14:02+0200\n"
+"PO-Revision-Date: 2026-07-05 12:28+0200\n"
 "Last-Translator: Esteban I. Ruiz Moreno <exio4.com@gmail.com>\n"
 "Language-Team: Italian <weechat-dev@nongnu.org>\n"
 "Language: it\n"
@@ -6510,11 +6510,6 @@ msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr ""
 "%sAttenzione: %s, riga %d: opzione sconosciuta per la sezione \"%s\": %s"
 
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: impossibile analizzare il file \"%s\""
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/ja.po

@@ -22,8 +22,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-05-30 14:02+0200\n"
+"PO-Revision-Date: 2026-07-05 12:28+0200\n"
 "Last-Translator: AYANOKOUZI, Ryuunosuke <i38w7i3@yahoo.co.jp>\n"
 "Language-Team: Japanese <weechat-dev@nongnu.org>\n"
 "Language: ja\n"
@@ -6686,11 +6686,6 @@ msgstr ""
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr "%s警告: %s、行 %d: セクション \"%s\" の無効なオプション: %s"
 
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: ファイル \"%s\" を解析できません"
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/pl.po

@@ -23,8 +23,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-06-28 08:55+0200\n"
+"PO-Revision-Date: 2026-07-05 12:28+0200\n"
 "Last-Translator: Krzysztof Korościk <soltys@soltys.info>\n"
 "Language-Team: Polish <soltys@soltys.info>\n"
 "Language: pl\n"
@@ -6867,11 +6867,6 @@ msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr ""
 "%sOstrzeżenie: %s, linia %d: ignoruje nieznaną opcję dla sekcji \"%s\": %s"
 
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: nie można przetworzyć pliku \"%s\""
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/pt.po

@@ -22,8 +22,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-06-28 08:48+0200\n"
+"PO-Revision-Date: 2026-07-05 12:28+0200\n"
 "Last-Translator: Vasco Almeida <vascomalmeida@sapo.pt>\n"
 "Language-Team: Portuguese <weechat-dev@nongnu.org>\n"
 "Language: pt\n"
@@ -6742,11 +6742,6 @@ msgstr ""
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr "%sAviso: %s, linha %d: opção desconhecida na secção \"%s\": %s"
 
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: não foi possível analisar o ficheiro \"%s\""
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/pt_BR.po

@@ -46,8 +46,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-06-28 08:49+0200\n"
+"PO-Revision-Date: 2026-07-05 12:28+0200\n"
 "Last-Translator: Érico Nogueira <ericonr@disroot.org>\n"
 "Language-Team: Portuguese (Brazil) <weechat-dev@nongnu.org>\n"
 "Language: pt_BR\n"
@@ -6408,11 +6408,6 @@ msgstr ""
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr "%sAviso: %s, linha %d: opção \"%s\" desconhecido para seção \"%s\""
 
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: não foi possível interpretar arquivo \"%s\""
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/ru.po

@@ -23,8 +23,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-03-08 08:59+0100\n"
+"PO-Revision-Date: 2026-07-05 12:28+0200\n"
 "Last-Translator: Aleksey V Zapparov AKA ixti <ixti@member.fsf.org>\n"
 "Language-Team: Russian <weechat-dev@nongnu.org>\n"
 "Language: ru\n"
@@ -6067,10 +6067,6 @@ msgstr ""
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr "%s %s, строка %d: неизвестный идентификатор секции (\"%s\")\n"
 
-#, fuzzy, c-format
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "Не могу записать лог-файл \"%s\"\n"
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/sr.po

@@ -22,8 +22,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-06-28 08:52+0200\n"
+"PO-Revision-Date: 2026-07-05 12:29+0200\n"
 "Last-Translator: Ivan Pešić <ivan.pesic@gmail.com>\n"
 "Language-Team: Serbian <ivan.pesic@gmail.com>\n"
 "Language: sr\n"
@@ -6849,11 +6849,6 @@ msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr ""
 "%sУпозорење: %s, линија %d: игнорише се непозната опција за одељак „%s”: %s"
 
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: није успело парсирање фајла „%s”"
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/tr.po

@@ -23,8 +23,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+0200\n"
-"PO-Revision-Date: 2026-06-28 08:53+0200\n"
+"PO-Revision-Date: 2026-07-05 12:29+0200\n"
 "Last-Translator: Emir SARI <emir_sari@icloud.com>\n"
 "Language-Team: Turkish <emir_sari@icloud.com>\n"
 "Language: tr\n"
@@ -6646,11 +6646,6 @@ msgstr ""
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr "%sUyarı: %s, %d. satır: \"%s\" bölümü için bilinmeyen seçenek: %s"
 
-#, fuzzy, c-format
-#| msgid "%s%s: unable to parse file \"%s\""
-msgid "%sFailed to parse theme file \"%s\""
-msgstr "%s%s: \"%s\" dosyası ayrıştırılamıyor"
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

po/weechat.pot

@@ -23,7 +23,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 22:01+0200\n"
+"POT-Creation-Date: 2026-07-05 12:20+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"
@@ -5624,10 +5624,6 @@ msgstr ""
 msgid "%s%s: line %d: ignoring unknown [info] key \"%s\""
 msgstr ""
 
-#, c-format
-msgid "%sFailed to parse theme file \"%s\""
-msgstr ""
-
 #, c-format
 msgid ""
 "%sUnable to create theme backup; aborting apply (disable option "

src/core/core-command.c

@@ -1700,17 +1700,12 @@ COMMAND_CALLBACK(color)
             else
                 str_alias = argv[i];
         }
-        str_color[0] = '\0';
+        snprintf (str_color, sizeof (str_color),
-        if (str_alias)
+                  "%s%s%s%s",
-        {
+                  (str_alias) ? ";" : "",
-            strcat (str_color, ";");
+                  (str_alias) ? str_alias : "",
-            strcat (str_color, str_alias);
+                  (str_rgb) ? ";" : "",
-        }
+                  (str_rgb) ? str_rgb : "");
-        if (str_rgb)
-        {
-            strcat (str_color, ";");
-            strcat (str_color, str_rgb);
-        }
 
         /* add color alias */
         snprintf (str_command, sizeof (str_command),
@@ -2948,7 +2943,7 @@ command_help_list_plugin_commands (struct t_weechat_plugin *plugin,
     struct t_gui_buffer *ptr_buffer;
     int command_found, length, max_length, list_size;
     int cols, lines, col, line, index;
-    char str_format[64], str_command[256], str_line[2048];
+    char str_format[64], str_command[256], **str_line;
 
     if (verbose)
     {
@@ -3051,9 +3046,12 @@ command_help_list_plugin_commands (struct t_weechat_plugin *plugin,
             }
 
             /* display lines with commands, in columns */
+            str_line = string_dyn_alloc (256);
+            if (str_line)
+            {
                 for (line = 0; line < lines; line++)
                 {
-                str_line[0] = '\0';
+                    string_dyn_copy (str_line, NULL);
                     for (col = 0; col < cols; col++)
                     {
                         index = (col * lines) + line;
@@ -3061,17 +3059,16 @@ command_help_list_plugin_commands (struct t_weechat_plugin *plugin,
                         {
                             item = weelist_get (list, index);
                             if (item)
-                        {
-                            if (strlen (str_line) + strlen (weelist_string (item)) + 1 < (int)sizeof (str_line))
                             {
                                 snprintf (str_command, sizeof (str_command),
                                           str_format, weelist_string (item));
-                                strcat (str_line, str_command);
+                                string_dyn_concat (str_line, str_command, -1);
                             }
                         }
                     }
+                    gui_chat_printf (NULL, "%s", *str_line);
                 }
-                gui_chat_printf (NULL, "%s", str_line);
+                string_dyn_free (str_line, 1);
             }
         }
 
@@ -7121,7 +7118,9 @@ COMMAND_CALLBACK(set)
 
 COMMAND_CALLBACK(sys)
 {
+#ifdef HAVE_MALLOC_TRIM
     long size;
+#endif
     int num_processes;
 
     /* make C compiler happy */
@@ -7372,9 +7371,7 @@ COMMAND_CALLBACK(theme)
         COMMAND_MIN_ARGS(3, "info");
         /* file shadows registry: try user file first */
         path = theme_user_file_path (argv[2]);
-        file_theme = NULL;
+        file_theme = (path) ? theme_file_parse (path) : NULL;
-        if (path && (access (path, R_OK) == 0))
-            file_theme = theme_file_parse (path);
         if (!file_theme)
         {
             free (path);

src/core/core-string.c

@@ -4763,6 +4763,8 @@ string_dyn_copy (char **string, const char *new_string)
  * if the string had to be extended, or the same pointer if there was enough
  * size to concatenate the new string.
  *
+ * In case of error, the dynamic string is left unchanged.
+ *
  * Return:
  *   1: OK
  *   0: error
@@ -4798,11 +4800,7 @@ string_dyn_concat (char **string, const char *add, int bytes)
             new_size_alloc = new_size;
         string_realloc = realloc (ptr_string_dyn->string, new_size_alloc);
         if (!string_realloc)
-        {
-            free (ptr_string_dyn->string);
-            free (ptr_string_dyn);
             return 0;
-        }
         ptr_string_dyn->string = string_realloc;
         ptr_string_dyn->size_alloc = new_size_alloc;
     }

src/core/core-theme.c

@@ -25,6 +25,8 @@
 #include "config.h"
 #endif
 
+#include <errno.h>
+#include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -945,18 +947,11 @@ theme_apply (const char *name)
      * so user themes have no steady-state memory footprint.
      */
     path = theme_user_file_path (name);
-    if (path && (access (path, R_OK) == 0))
+    if (path)
-    {
         file_theme = theme_file_parse (path);
-        if (!file_theme)
-        {
-            gui_chat_printf (NULL,
-                             _("%sFailed to parse theme file \"%s\""),
-                             gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
-                             path);
     free (path);
-            return WEECHAT_RC_ERROR;
+    if (file_theme)
-        }
+    {
         theme = file_theme;
     }
     else
@@ -968,11 +963,9 @@ theme_apply (const char *name)
                              _("%sTheme \"%s\" not found"),
                              gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
                              name);
-            free (path);
             return WEECHAT_RC_ERROR;
         }
     }
-    free (path);
 
     /* create a backup of current themable state, if enabled */
     if (CONFIG_BOOLEAN(config_look_theme_backup)
@@ -1187,7 +1180,7 @@ theme_rename (const char *old_name, const char *new_name)
     char *old_path, *new_path, line[2048];
     FILE *fin, *fout;
     const char *trimmed;
-    int in_info, name_done;
+    int in_info, name_done, fd;
 
     if (!old_name || !old_name[0] || !new_name || !new_name[0])
         return WEECHAT_RC_ERROR;
@@ -1230,38 +1223,52 @@ theme_rename (const char *old_name, const char *new_name)
     old_path = theme_user_file_path (old_name);
     if (!old_path)
         return WEECHAT_RC_ERROR;
-    if (access (old_path, R_OK) != 0)
-    {
-        gui_chat_printf (NULL,
-                         _("%sTheme \"%s\" not found"),
-                         gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
-                         old_name);
-        free (old_path);
-        return WEECHAT_RC_ERROR;
-    }
-
     new_path = theme_user_file_path (new_name);
     if (!new_path)
     {
         free (old_path);
         return WEECHAT_RC_ERROR;
     }
-    if (access (new_path, F_OK) == 0)
+
+    fin = fopen (old_path, "r");
+    if (!fin)
     {
         gui_chat_printf (NULL,
-                         _("%sTheme \"%s\" already exists"),
+                         _("%sTheme \"%s\" not found"),
                          gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
-                         new_name);
+                         old_name);
         free (old_path);
         free (new_path);
         return WEECHAT_RC_ERROR;
     }
 
-    fin = fopen (old_path, "r");
+    fd = open (new_path, O_WRONLY | O_CREAT | O_EXCL, 0666);
-    fout = (fin) ? fopen (new_path, "w") : NULL;
+    if (fd < 0)
-    if (!fin || !fout)
     {
-        if (fin)
+        if (errno == EEXIST)
+        {
+            gui_chat_printf (NULL,
+                             _("%sTheme \"%s\" already exists"),
+                             gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
+                             new_name);
+        }
+        else
+        {
+            gui_chat_printf (NULL,
+                             _("%sFailed to rename theme \"%s\" to \"%s\""),
+                             gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
+                             old_name, new_name);
+        }
+        fclose (fin);
+        free (old_path);
+        free (new_path);
+        return WEECHAT_RC_ERROR;
+    }
+    fout = fdopen (fd, "w");
+    if (!fout)
+    {
+        close (fd);
+        unlink (new_path);
         fclose (fin);
         gui_chat_printf (NULL,
                          _("%sFailed to rename theme \"%s\" to \"%s\""),

tests/unit/core/test-core-theme.cpp

@@ -942,7 +942,7 @@ TEST(CoreTheme, Delete)
 
 TEST(CoreTheme, Rename)
 {
-    char *src_path, *dst_path;
+    char *src_path = NULL, *dst_path = NULL;
     struct stat st;
     FILE *file;
     char buf[2048];
@@ -974,6 +974,17 @@ TEST(CoreTheme, Rename)
     /* refuses target that already exists */
     LONGS_EQUAL(WEECHAT_RC_OK, theme_save ("rn_dst"));
     LONGS_EQUAL(WEECHAT_RC_ERROR, theme_rename ("rn_src", "rn_dst"));
+    /* the refused rename must not have clobbered the existing target */
+    dst_path = theme_user_file_path ("rn_dst");
+    CHECK(dst_path != NULL);
+    file = fopen (dst_path, "r");
+    CHECK(file != NULL);
+    len = fread (buf, 1, sizeof (buf) - 1, file);
+    buf[len] = '\0';
+    fclose (file);
+    CHECK(strstr (buf, "name = \"rn_dst\"") != NULL);
+    free (dst_path);
+    dst_path = NULL;
     LONGS_EQUAL(WEECHAT_RC_OK, theme_delete ("rn_dst"));
 
     /* happy path: rename moves the file and rewrites the [info] name */

version.sh

@@ -41,7 +41,7 @@
 #     devel-number   the devel version as hex number ("0x04010000" for "4.1.0-dev")
 #
 
-weechat_stable="4.9.2"
+weechat_stable="4.9.3"
 weechat_devel="4.10.0-dev"
 
 stable_major=$(echo "${weechat_stable}" | cut -d"." -f1)