[SCM] GNU M4 source repository branch, branch-1.4, updated. v1.4.12-27-gccc1379

[Eric Blake]

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- Log -----------------------------------------------------------------
commit ccc1379c1360edc29e6f8d3ee3a88756e4fe1b44
Author: Eric Blake <address@hidden>
Date:   Thu Feb 19 16:26:55 2009 -0700

    Fix regression in translit.
    
    * src/builtin.c (m4_translit): Use correct comparison.
    * doc/m4.texinfo (Translit): Enhance test.
    
    Signed-off-by: Eric Blake <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog      |    8 +++++++-
 doc/m4.texinfo |    6 ++++++
 src/builtin.c  |    4 ++--
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index edff0b8..1124a5e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,8 @@
-2009-02-18  Eric Blake  <address@hidden>
+2009-02-19  Eric Blake  <address@hidden>
+
+       Fix regression in translit.
+       * src/builtin.c (m4_translit): Use correct comparison.
+       * doc/m4.texinfo (Translit): Enhance test.
 
        Speed up input engine, by searching for quotes by buffer.
        * src/input.c (struct input_block): Add end pointer to string.
@@ -6,6 +10,8 @@
        (next_token): For quotes, attempt a buffer search.
        * NEWS: Document this.
 
+2009-02-18  Eric Blake  <address@hidden>
+
        Speed up translit when from argument is short.
        * m4/gnulib-cache.m4: Import memchr2 module.
        * src/builtin.c (m4_translit): Use memchr2 when possible.
diff --git a/doc/m4.texinfo b/doc/m4.texinfo
index 10e63ef..6877ecc 100644
--- a/doc/m4.texinfo
+++ b/doc/m4.texinfo
@@ -5800,6 +5800,12 @@ translit(`abcdeabcde', `ab', `fg')
 @result{}fgcdefgcde
 translit(`abcdeabcde', `ab', `ba')
 @result{}bacdebacde
+translit(`abcdeabcde', `e', `f')
address@hidden
+translit(`abc', `', `cde')
address@hidden
+translit(`', `a', `bc')
address@hidden
 @end example
 @end ignore
 
diff --git a/src/builtin.c b/src/builtin.c
index 504075a..6378fb7 100644
--- a/src/builtin.c
+++ b/src/builtin.c
@@ -1824,10 +1824,10 @@ m4_translit (struct obstack *obs, int argc, token_data 
**argv)
   char found[UCHAR_MAX + 1];
   unsigned char ch;
 
-  if (bad_argc (argv[0], argc, 3, 4) || !*from)
+  if (bad_argc (argv[0], argc, 3, 4) || !*data || !*from)
     {
       /* builtin(`translit') is blank, but translit(`abc') is abc.  */
-      if (argc <= 2)
+      if (2 <= argc)
        obstack_grow (obs, data, strlen (data));
       return;
     }


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