X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ftrim.c;h=9293a64cecae2c79a3e007ad276788ebf3284e66;hb=56093e4d947bcc87bbc05ac3e8645509274f57b4;hp=78f84b2d94b9066f8a1e8108c723191153105245;hpb=0631ee73aea142c346c7a3026209ef3cc7b30b22;p=gnulib.git

diff --git a/lib/trim.c b/lib/trim.c
index 78f84b2d9..9293a64ce 100644
--- a/lib/trim.c
+++ b/lib/trim.c
@@ -1,10 +1,10 @@
 /* Removes leading and/or trailing whitespaces
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006-2008 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,98 +12,104 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING.
-   If not, write to the Free Software Foundation,
-   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Davide Angelocola <davide.angelocola@gmail.com> */
 
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
+
+/* Specification.  */
+#include "trim.h"
+
+#include <ctype.h>
+#include <string.h>
 
-#if HAVE_MBRTOWC 
+#if HAVE_MBRTOWC
 # include <stddef.h>
+# include <stdlib.h>
 # include "mbchar.h"
 # include "mbiter.h"
-# include "mbuiter.h"		/* FIXME: for MB_CUR_MAX */
-#else
-# include <ctype.h>
 #endif
 
 #include "xalloc.h"
-#include "trim.h"
+
+/* Use this to suppress gcc's `...may be used before initialized' warnings. */
+#ifdef lint
+# define IF_LINT(Code) Code
+#else
+# define IF_LINT(Code) /* empty */
+#endif
 
 char *
 trim2(const char *s, int how)
 {
   char *d;
-    
+
   d = strdup(s);
 
   if (!d)
     xalloc_die();
-  
+
 #if HAVE_MBRTOWC
   if (MB_CUR_MAX > 1)
     {
       mbi_iterator_t i;
-      
+
       /* Trim leading whitespaces. */
-      if (how != TRIM_TRAILING) 
+      if (how != TRIM_TRAILING)
 	{
 	  mbi_init (i, d, strlen (d));
-      
+
 	  for (; mbi_avail (i) && mb_isspace (mbi_cur (i)); mbi_advance (i))
 	    ;
-	  
+
 	  memmove (d, mbi_cur_ptr (i), strlen (mbi_cur_ptr (i)) + 1);
 	}
-  
+
       /* Trim trailing whitespaces. */
-      if (how != TRIM_LEADING) 
+      if (how != TRIM_LEADING)
 	{
 	  int state = 0;
-	  char *r;
-	  
+	  char *r IF_LINT (= NULL); /* used only while state = 2 */
+
 	  mbi_init (i, d, strlen (d));
 
-	  for (; mbi_avail (i); mbi_advance (i)) 
+	  for (; mbi_avail (i); mbi_advance (i))
 	    {
-	      if (state == 0 && mb_isspace (mbi_cur (i))) 
+	      if (state == 0 && mb_isspace (mbi_cur (i)))
 		{
 		  state = 0;
 		  continue;
 		}
-	      
+
 	      if (state == 0 && !mb_isspace (mbi_cur (i)))
 		{
 		  state = 1;
 		  continue;
 		}
-	      
+
 	      if (state == 1 && !mb_isspace (mbi_cur (i)))
 		{
 		  state = 1;
 		  continue;
 		}
-	      
-	      if (state == 1 && mb_isspace (mbi_cur (i))) 
+
+	      if (state == 1 && mb_isspace (mbi_cur (i)))
 		{
 		  state = 2;
 		  r = (char *) mbi_cur_ptr (i);
 		}
-	      else if (state == 2 && mb_isspace (mbi_cur (i))) 
+	      else if (state == 2 && mb_isspace (mbi_cur (i)))
 		{
 		  state = 2;
-		} 
-	      else 
+		}
+	      else
 		{
 		  state = 1;
 		}
 	    }
-	  
-	  if (state == 2) 
+
+	  if (state == 2)
 	    *r = '\0';
 	}
     }
@@ -111,22 +117,22 @@ trim2(const char *s, int how)
 #endif /* HAVE_MBRTOWC */
     {
       char *p;
-      
+
       /* Trim leading whitespaces. */
       if (how != TRIM_TRAILING) {
-	for (p = d; *p && isspace (*p); p++)
-	  ;			
+	for (p = d; *p && isspace ((unsigned char) *p); p++)
+	  ;
 
 	memmove (d, p, strlen (p) + 1);
       }
 
       /* Trim trailing whitespaces. */
       if (how != TRIM_LEADING) {
-	for (p = d + strlen (d) - 1; p >= d && isspace (*p); p--)
+	for (p = d + strlen (d) - 1; p >= d && isspace ((unsigned char) *p); p--)
 	  *p = '\0';
       }
     }
-  
+
   return d;
 }
-  
+