cat: add support for translation

src/uu/cat/locales/en-US.ftl

@@ -1,3 +1,21 @@
 cat-about = Concatenate FILE(s), or standard input, to standard output
   With no FILE, or when FILE is -, read standard input.
 cat-usage = cat [OPTION]... [FILE]...
+
+# Help messages
+cat-help-show-all = equivalent to -vET
+cat-help-number-nonblank = number nonempty output lines, overrides -n
+cat-help-show-nonprinting-ends = equivalent to -vE
+cat-help-show-ends = display $ at end of each line
+cat-help-number = number all output lines
+cat-help-squeeze-blank = suppress repeated empty output lines
+cat-help-show-nonprinting-tabs = equivalent to -vT
+cat-help-show-tabs = display TAB characters at ^I
+cat-help-show-nonprinting = use ^ and M- notation, except for LF (\n) and TAB (\t)
+cat-help-ignored-u = (ignored)
+
+# Error messages
+cat-error-unknown-filetype = unknown filetype: { $ft_debug }
+cat-error-is-directory = Is a directory
+cat-error-input-file-is-output-file = input file is output file
+cat-error-too-many-symbolic-links = Too many levels of symbolic links

src/uu/cat/locales/fr-FR.ftl

@@ -0,0 +1,21 @@
+cat-about = Concaténer les FICHIER(s), ou l'entrée standard, vers la sortie standard
+  Si aucun FICHIER, ou quand FICHIER est -, lire l'entrée standard.
+cat-usage = cat [OPTION]... [FICHIER]...
+
+# Messages d'aide
+cat-help-show-all = équivalent à -vET
+cat-help-number-nonblank = numéroter les lignes de sortie non vides, remplace -n
+cat-help-show-nonprinting-ends = équivalent à -vE
+cat-help-show-ends = afficher $ à la fin de chaque ligne
+cat-help-number = numéroter toutes les lignes de sortie
+cat-help-squeeze-blank = supprimer les lignes vides répétées en sortie
+cat-help-show-nonprinting-tabs = équivalent à -vT
+cat-help-show-tabs = afficher les caractères TAB comme ^I
+cat-help-show-nonprinting = utiliser la notation ^ et M-, sauf pour LF (\n) et TAB (\t)
+cat-help-ignored-u = (ignoré)
+
+# Messages d'erreur
+cat-error-unknown-filetype = type de fichier inconnu : { $ft_debug }
+cat-error-is-directory = Est un répertoire
+cat-error-input-file-is-output-file = le fichier d'entrée est le fichier de sortie
+cat-error-too-many-symbolic-links = Trop de niveaux de liens symboliques

src/uu/cat/src/cat.rs

@@ -97,16 +97,16 @@ enum CatError {
     #[error("{0}")]
     Nix(#[from] nix::Error),
     /// Unknown file type; it's not a regular file, socket, etc.
-    #[error("unknown filetype: {ft_debug}")]
+    #[error("{}", translate!("cat-error-unknown-filetype", "ft_debug" => .ft_debug))]
     UnknownFiletype {
         /// A debug print of the file type
         ft_debug: String,
     },
-    #[error("Is a directory")]
+    #[error("{}", translate!("cat-error-is-directory"))]
     IsDirectory,
-    #[error("input file is output file")]
+    #[error("{}", translate!("cat-error-input-file-is-output-file"))]
     OutputIsInput,
-    #[error("Too many levels of symbolic links")]
+    #[error("{}", translate!("cat-error-too-many-symbolic-links"))]
     TooManySymlinks,
 }
 
@@ -302,69 +302,69 @@ pub fn uu_app() -> Command {
             Arg::new(options::SHOW_ALL)
                 .short('A')
                 .long(options::SHOW_ALL)
-                .help("equivalent to -vET")
+                .help(translate!("cat-help-show-all"))
                 .action(ArgAction::SetTrue),
         )
         .arg(
             Arg::new(options::NUMBER_NONBLANK)
                 .short('b')
                 .long(options::NUMBER_NONBLANK)
-                .help("number nonempty output lines, overrides -n")
+                .help(translate!("cat-help-number-nonblank"))
                 // Note: This MUST NOT .overrides_with(options::NUMBER)!
                 // In clap, overriding is symmetric, so "-b -n" counts as "-n", which is not what we want.
                 .action(ArgAction::SetTrue),
         )
         .arg(
             Arg::new(options::SHOW_NONPRINTING_ENDS)
                 .short('e')
-                .help("equivalent to -vE")
+                .help(translate!("cat-help-show-nonprinting-ends"))
                 .action(ArgAction::SetTrue),
         )
         .arg(
             Arg::new(options::SHOW_ENDS)
                 .short('E')
                 .long(options::SHOW_ENDS)
-                .help("display $ at end of each line")
+                .help(translate!("cat-help-show-ends"))
                 .action(ArgAction::SetTrue),
         )
         .arg(
             Arg::new(options::NUMBER)
                 .short('n')
                 .long(options::NUMBER)
-                .help("number all output lines")
+                .help(translate!("cat-help-number"))
                 .action(ArgAction::SetTrue),
         )
         .arg(
             Arg::new(options::SQUEEZE_BLANK)
                 .short('s')
                 .long(options::SQUEEZE_BLANK)
-                .help("suppress repeated empty output lines")
+                .help(translate!("cat-help-squeeze-blank"))
                 .action(ArgAction::SetTrue),
         )
         .arg(
             Arg::new(options::SHOW_NONPRINTING_TABS)
                 .short('t')
-                .help("equivalent to -vT")
+                .help(translate!("cat-help-show-nonprinting-tabs"))
                 .action(ArgAction::SetTrue),
         )
         .arg(
             Arg::new(options::SHOW_TABS)
                 .short('T')
                 .long(options::SHOW_TABS)
-                .help("display TAB characters at ^I")
+                .help(translate!("cat-help-show-tabs"))
                 .action(ArgAction::SetTrue),
         )
         .arg(
             Arg::new(options::SHOW_NONPRINTING)
                 .short('v')
                 .long(options::SHOW_NONPRINTING)
-                .help("use ^ and M- notation, except for LF (\\n) and TAB (\\t)")
+                .help(translate!("cat-help-show-nonprinting"))
                 .action(ArgAction::SetTrue),
         )
         .arg(
             Arg::new(options::IGNORED_U)
                 .short('u')
-                .help("(ignored)")
+                .help(translate!("cat-help-ignored-u"))
                 .action(ArgAction::SetTrue),
         )
 }