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doc: improve highlighting of single spaced translations

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* src/system.h (oputs_): Translations sometimes use a single space
between an option and its description.  They only do this though
for long options since they result in less available screen space.
Therefore be more strict with option matching once we've encountered
a long option, which supports the more varied formats often
associated with short options.
This commit is contained in:
Pádraig Brady
2026-01-27 17:45:02 +00:00
parent 6add5f97ec
commit f2af245eba
1 changed files with 17 additions and 5 deletions
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22
src/system.h
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@@ -567,7 +567,6 @@ oputs_ (MAYBE_UNUSED char const* program, char const *option)
return;
}
char const* first_word = option + strspn (option, " \t\n");
char const *option_text = strchr (option, '-');
if (!option_text)
@@ -577,11 +576,24 @@ oputs_ (MAYBE_UNUSED char const* program, char const *option)
/* Set highlighted text up to spacing after the full option text.
Any single space is included in highlighted text,
double space or TAB or newline terminates the option text. */
bool long_option = false;
char const *desc_text = option_text + anchor_len;
while (*desc_text && *desc_text != '\n'
&& (! isspace (*desc_text)
|| (*desc_text != '\t' && ! isspace (*(desc_text + 1)))))
desc_text++;
while (*desc_text && *desc_text != '\n')
{
if (*desc_text == '-' && *(desc_text + 1) == '-')
long_option = true;
if (isspace (*desc_text))
{
if (*desc_text == '\t' || isspace (*(desc_text + 1)))
break;
/* With long options we restrict the match as some translations
delimit a long option and description with a single space. */
if (long_option && *(desc_text + 1) != '-')
break;
}
desc_text++;
}
/* write spaces before option text. */
fwrite (option, 1, first_word - option, stdout);