i18n: parseopt: lookup help and argument translations when showing usage

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/parse-options.c b/parse-options.c
index 850cfa78c9b7bbcd1cb8504453f60fd15b8ceebb..ab70c29c49b28eac1de3d7dd32814fa1e8544059 100644 (file)
--- a/parse-options.c
+++ b/parse-options.c
@@ -490,7 +490,7 @@ static int usage_argh(const struct option *opts, FILE *outfile)
                        s = literal ? "[%s]" : "[<%s>]";
        else
                s = literal ? " %s" : " <%s>";
-       return fprintf(outfile, s, opts->argh ? opts->argh : "...");
+       return fprintf(outfile, s, opts->argh ? _(opts->argh) : _("..."));
 }
 
 #define USAGE_OPTS_WIDTH 24
@@ -508,13 +508,16 @@ static int usage_with_options_internal(struct parse_opt_ctx_t *ctx,
        if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL)
                fprintf(outfile, "cat <<\\EOF\n");
 
-       fprintf(outfile, "usage: %s\n", *usagestr++);
+       fprintf_ln(outfile, _("usage: %s"), _(*usagestr++));
        while (*usagestr && **usagestr)
-               fprintf(outfile, "   or: %s\n", *usagestr++);
+               /* TRANSLATORS: the colon here should align with the
+                  one in "usage: %s" translation */
+               fprintf_ln(outfile, _("   or: %s"), _(*usagestr++));
        while (*usagestr) {
-               fprintf(outfile, "%s%s\n",
-                               **usagestr ? "    " : "",
-                               *usagestr);
+               if (**usagestr)
+                       fprintf_ln(outfile, _("    %s"), _(*usagestr));
+               else
+                       putchar('\n');
                usagestr++;
        }
 
@@ -528,7 +531,7 @@ static int usage_with_options_internal(struct parse_opt_ctx_t *ctx,
                if (opts->type == OPTION_GROUP) {
                        fputc('\n', outfile);
                        if (*opts->help)
-                               fprintf(outfile, "%s\n", opts->help);
+                               fprintf(outfile, "%s\n", _(opts->help));
                        continue;
                }
                if (!full && (opts->flags & PARSE_OPT_HIDDEN))
@@ -558,7 +561,7 @@ static int usage_with_options_internal(struct parse_opt_ctx_t *ctx,
                        fputc('\n', outfile);
                        pad = USAGE_OPTS_WIDTH;
                }
-               fprintf(outfile, "%*s%s\n", pad + USAGE_GAP, "", opts->help);
+               fprintf(outfile, "%*s%s\n", pad + USAGE_GAP, "", _(opts->help));
        }
        fputc('\n', outfile);
 

diff --git a/parse-options.h b/parse-options.h
index da999f8995ee79865bd4c2f72a1e009502a69926..77a4a8b2e6d2f6bc08be74b39ee6dd4964828763 100644 (file)
--- a/parse-options.h
+++ b/parse-options.h
@@ -66,12 +66,14 @@ typedef int parse_opt_ll_cb(struct parse_opt_ctx_t *ctx,
  *
  * `argh`::
  *   token to explain the kind of argument this option wants. Keep it
- *   homogeneous across the repository.
+ *   homogeneous across the repository. Should be wrapped by N_() for
+ *   translation.
  *
  * `help`::
  *   the short help associated to what the option does.
  *   Must never be NULL (except for OPTION_END).
  *   OPTION_GROUP uses this pointer to store the group header.
+ *   Should be wrapped by N_() for translation.
  *
  * `flags`::
  *   mask of parse_opt_option_flags.
@@ -128,7 +130,7 @@ struct option {
 #define OPT_BOOL(s, l, v, h)        OPT_SET_INT(s, l, v, h, 1)
 #define OPT_SET_PTR(s, l, v, h, p)  { OPTION_SET_PTR, (s), (l), (v), NULL, \
                                      (h), PARSE_OPT_NOARG, NULL, (p) }
-#define OPT_INTEGER(s, l, v, h)     { OPTION_INTEGER, (s), (l), (v), "n", (h) }
+#define OPT_INTEGER(s, l, v, h)     { OPTION_INTEGER, (s), (l), (v), N_("n"), (h) }
 #define OPT_STRING(s, l, v, a, h)   { OPTION_STRING,  (s), (l), (v), (a), (h) }
 #define OPT_STRING_LIST(s, l, v, a, h) \
                                    { OPTION_CALLBACK, (s), (l), (v), (a), \
@@ -136,7 +138,7 @@ struct option {
 #define OPT_UYN(s, l, v, h)         { OPTION_CALLBACK, (s), (l), (v), NULL, \
                                      (h), PARSE_OPT_NOARG, &parse_opt_tertiary }
 #define OPT_DATE(s, l, v, h) \
-       { OPTION_CALLBACK, (s), (l), (v), "time",(h), 0, \
+       { OPTION_CALLBACK, (s), (l), (v), N_("time"),(h), 0,    \
          parse_opt_approxidate_cb }
 #define OPT_CALLBACK(s, l, v, a, h, f) \
        { OPTION_CALLBACK, (s), (l), (v), (a), (h), 0, (f) }
@@ -144,21 +146,22 @@ struct option {
        { OPTION_NUMBER, 0, NULL, (v), NULL, (h), \
          PARSE_OPT_NOARG | PARSE_OPT_NONEG, (f) }
 #define OPT_FILENAME(s, l, v, h)    { OPTION_FILENAME, (s), (l), (v), \
-                                      "file", (h) }
+                                      N_("file"), (h) }
 #define OPT_COLOR_FLAG(s, l, v, h) \
-       { OPTION_CALLBACK, (s), (l), (v), "when", (h), PARSE_OPT_OPTARG, \
+       { OPTION_CALLBACK, (s), (l), (v), N_("when"), (h), PARSE_OPT_OPTARG, \
                parse_opt_color_flag_cb, (intptr_t)"always" }
 
 #define OPT_NOOP_NOARG(s, l) \
        { OPTION_CALLBACK, (s), (l), NULL, NULL, \
-         "no-op (backward compatibility)", \
+         N_("no-op (backward compatibility)"),         \
          PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, parse_opt_noop_cb }
 
 /* Deprecated synonym */
 #define OPT_BOOLEAN OPT_COUNTUP
 
 /* parse_options() will filter out the processed options and leave the
- * non-option arguments in argv[].
+ * non-option arguments in argv[]. usagestr strings should be marked
+ * for translation with N_().
  * Returns the number of arguments left in argv[].
  */
 extern int parse_options(int argc, const char **argv, const char *prefix,
@@ -222,15 +225,15 @@ extern int parse_opt_noop_cb(const struct option *, const char *, int);
 #define OPT__VERBOSE(var, h)  OPT_BOOLEAN('v', "verbose", (var), (h))
 #define OPT__QUIET(var, h)    OPT_BOOLEAN('q', "quiet",   (var), (h))
 #define OPT__VERBOSITY(var) \
-       { OPTION_CALLBACK, 'v', "verbose", (var), NULL, "be more verbose", \
+       { OPTION_CALLBACK, 'v', "verbose", (var), NULL, N_("be more verbose"), \
          PARSE_OPT_NOARG, &parse_opt_verbosity_cb, 0 }, \
-       { OPTION_CALLBACK, 'q', "quiet", (var), NULL, "be more quiet", \
+       { OPTION_CALLBACK, 'q', "quiet", (var), NULL, N_("be more quiet"), \
          PARSE_OPT_NOARG, &parse_opt_verbosity_cb, 0 }
 #define OPT__DRY_RUN(var, h)  OPT_BOOLEAN('n', "dry-run", (var), (h))
 #define OPT__FORCE(var, h)    OPT_BOOLEAN('f', "force",   (var), (h))
 #define OPT__ABBREV(var)  \
-       { OPTION_CALLBACK, 0, "abbrev", (var), "n", \
-         "use <n> digits to display SHA-1s", \
+       { OPTION_CALLBACK, 0, "abbrev", (var), N_("n"), \
+         N_("use <n> digits to display SHA-1s"),       \
          PARSE_OPT_OPTARG, &parse_opt_abbrev_cb, 0 }
 #define OPT__COLOR(var, h) \
        OPT_COLOR_FLAG(0, "color", (var), (h))