From: Pádraig Brady <P@draigBrady.com>
Date: Sun, 25 Jan 2026 19:52:59 +0000 (+0000)
Subject: doc: support TAB as a delimiter between --option and description
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca68ab6c8a63767d0f6da723929a93ac868878c2;p=thirdparty%2Fcoreutils.git

doc: support TAB as a delimiter between --option and description

* src/system.h (oputs_): Treat a single TAB as an option delimiter.
Some zh translations use this delimiter format.
---

diff --git a/src/system.h b/src/system.h
index 80779640db..3695954db9 100644
--- a/src/system.h
+++ b/src/system.h
@@ -576,10 +576,11 @@ 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 newline terminates the option text.  */
+     double space or TAB or newline terminates the option text.  */
   char const *desc_text = option_text + anchor_len;
   while (*desc_text && *desc_text != '\n'
-         && (! isspace (*desc_text) || ! isspace (*(desc_text + 1))))
+         && (! isspace (*desc_text)
+             || (*desc_text != '\t' && ! isspace (*(desc_text + 1)))))
     desc_text++;
 
   /* write spaces before option text. */