getdate.y: avoid locale-dependent date parsing failure

In Turkish locales, getdate would fail to recognize keywords
containing a lowercase "i".  The solution is not to rely on
locale-sensitive case-conversion.
* lib/getdate.y: Include <c-ctype.h> rather than <ctype.h>.
(lookup_word): Use c_toupper in place of toupper.
(yylex, get_date): Use c_ prefixed variants of isspace and isalpha, too.
Reported by Vefa Bicakci <bicave@superonline.com> in
<http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/14184>.
* modules/getdate (Depends-on): Add c-ctype.

diff --git a/ChangeLog b/ChangeLog
index 44e92ca..2a27be2 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+2008-08-02  Jim Meyering  <meyering@redhat.com>
+
+       getdate.y: avoid locale-dependent date parsing failure
+       In Turkish locales, getdate would fail to recognize keywords
+       containing a lowercase "i".  The solution is not to rely on
+       locale-sensitive case-conversion.
+       * lib/getdate.y: Include <c-ctype.h> rather than <ctype.h>.
+       (lookup_word): Use c_toupper in place of toupper.
+       (yylex, get_date): Use c_ prefixed variants of isspace and isalpha, too.
+       Reported by Vefa Bicakci <bicave@superonline.com> in
+       <http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/14184>.
+       * modules/getdate (Depends-on): Add c-ctype.
+
 2008-08-02  Bruno Haible  <bruno@clisp.org>
 
        * gnulib-tool (func_import): When updating or creating a .gitignore

diff --git a/lib/getdate.y b/lib/getdate.y
index 695fd59..a94bf8b 100644 (file)
--- a/lib/getdate.y
+++ b/lib/getdate.y
@@ -60,7 +60,7 @@
 # undef static
 #endif
 
-#include <ctype.h>
+#include <c-ctype.h>
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -900,7 +900,7 @@ lookup_word (parser_control const *pc, char *word)
   for (p = word; *p; p++)
     {
       unsigned char ch = *p;
-      *p = toupper (ch);
+      *p = c_toupper (ch);
     }
 
   for (tp = meridian_table; tp->name; tp++)
@@ -965,7 +965,7 @@ yylex (YYSTYPE *lvalp, parser_control *pc)
 
   for (;;)
     {
-      while (c = *pc->input, isspace (c))
+      while (c = *pc->input, c_isspace (c))
        pc->input++;
 
       if (ISDIGIT (c) || c == '-' || c == '+')
@@ -976,7 +976,7 @@ yylex (YYSTYPE *lvalp, parser_control *pc)
          if (c == '-' || c == '+')
            {
              sign = c == '-' ? -1 : 1;
-             while (c = *++pc->input, isspace (c))
+             while (c = *++pc->input, c_isspace (c))
                continue;
              if (! ISDIGIT (c))
                /* skip the '-' sign */
@@ -1080,7 +1080,7 @@ yylex (YYSTYPE *lvalp, parser_control *pc)
            }
        }
 
-      if (isalpha (c))
+      if (c_isalpha (c))
        {
          char buff[20];
          char *p = buff;
@@ -1092,7 +1092,7 @@ yylex (YYSTYPE *lvalp, parser_control *pc)
                *p++ = c;
              c = *++pc->input;
            }
-         while (isalpha (c) || c == '.');
+         while (c_isalpha (c) || c == '.');
 
          *p = '\0';
          tp = lookup_word (pc, buff);
@@ -1205,7 +1205,7 @@ get_date (struct timespec *result, char const *p, struct timespec const *now)
   if (! tmp)
     return false;
 
-  while (c = *p, isspace (c))
+  while (c = *p, c_isspace (c))
     p++;
 
   if (strncmp (p, "TZ=\"", 4) == 0)

diff --git a/modules/getdate b/modules/getdate
index 59c1abf..1328c22 100644 (file)
--- a/modules/getdate
+++ b/modules/getdate
@@ -10,6 +10,7 @@ m4/tm_gmtoff.m4
 m4/getdate.m4
 
 Depends-on:
+c-ctype
 stdbool
 gettime
 intprops