diff-parseopt: convert --ws-error-highlight

Mark one more string for translation while at there.

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

diff --git a/diff.c b/diff.c
index ce118bb326bfb429cacd6100bb1c7bf2d9fb521b..7bfdf081378c2460c1f36616f25bed557d1ab012 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -4801,17 +4801,18 @@ static void enable_patch_output(int *fmt)
        *fmt |= DIFF_FORMAT_PATCH;
 }
 
-static int parse_ws_error_highlight_opt(struct diff_options *opt, const char *arg)
+static int diff_opt_ws_error_highlight(const struct option *option,
+                                      const char *arg, int unset)
 {
+       struct diff_options *opt = option->value;
        int val = parse_ws_error_highlight(arg);
 
-       if (val < 0) {
-               error("unknown value after ws-error-highlight=%.*s",
-                     -1 - val, arg);
-               return 0;
-       }
+       BUG_ON_OPT_NEG(unset);
+       if (val < 0)
+               return error(_("unknown value after ws-error-highlight=%.*s"),
+                            -1 - val, arg);
        opt->ws_error_highlight = val;
-       return 1;
+       return 0;
 }
 
 static int parse_objfind_opt(struct diff_options *opt, const char *arg)
@@ -5234,6 +5235,9 @@ static void prep_parse_options(struct diff_options *options)
                         N_("show full pre- and post-image object names on the \"index\" lines")),
                OPT_COLOR_FLAG(0, "color", &options->use_color,
                               N_("show colored diff")),
+               OPT_CALLBACK_F(0, "ws-error-highlight", options, N_("<kind>"),
+                              N_("highlight whitespace errors in the 'context', 'old' or 'new' lines in the diff"),
+                              PARSE_OPT_NONEG, diff_opt_ws_error_highlight),
                OPT_CALLBACK_F(0, "output-indicator-new",
                               &options->output_indicators[OUTPUT_INDICATOR_NEW],
                               N_("<char>"),
@@ -5397,9 +5401,7 @@ int diff_opt_parse(struct diff_options *options,
                if (cm & COLOR_MOVED_WS_ERROR)
                        return -1;
                options->color_moved_ws_handling = cm;
-       } else if (skip_prefix(arg, "--ws-error-highlight=", &arg))
-               return parse_ws_error_highlight_opt(options, arg);
-       else if (!strcmp(arg, "--ita-invisible-in-index"))
+       } else if (!strcmp(arg, "--ita-invisible-in-index"))
                options->ita_invisible_in_index = 1;
        else if (!strcmp(arg, "--ita-visible-in-index"))
                options->ita_invisible_in_index = 0;