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ngt_TrimStr(): code cleanup.

This commit is contained in:
Alexander Barton 2006-03-22 08:05:10 +00:00
parent 2a9ffe7037
commit cba9270845

View File

@ -14,7 +14,7 @@
#include "portab.h"
static char UNUSED id[] = "$Id: tool.c,v 1.3 2005/03/19 18:43:52 fw Exp $";
static char UNUSED id[] = "$Id: tool.c,v 1.4 2006/03/22 08:05:10 alex Exp $";
#include "imp.h"
#include <assert.h>
@ -26,28 +26,33 @@ static char UNUSED id[] = "$Id: tool.c,v 1.3 2005/03/19 18:43:52 fw Exp $";
#include "tool.h"
/**
* Removes all leading and trailing whitespaces of a string.
* @param String The string to remove whitespaces from.
*/
GLOBAL void
ngt_TrimStr( char *String )
ngt_TrimStr(char *String)
{
/* Mit ngt_TrimStr() werden fuehrende und folgende Leerzeichen,
* Tabulatoren und Zeilenumbrueche (ASCII 10 und ASCII 13) aus
* dem String entfernt. */
char *start, *ptr;
char *start, *end;
assert( String != NULL );
assert(String != NULL);
start = String;
/* Zeichen am Anfang pruefen ... */
while(( *start == ' ' ) || ( *start == 9 )) start++;
/* Zeichen am Ende pruefen ... */
ptr = strchr( start, '\0' ) - 1;
while((( *ptr == ' ' ) || ( *ptr == 9 ) || ( *ptr == 10 ) || ( *ptr == 13 )) && ptr >= start ) ptr--;
*(++ptr) = '\0';
memmove( String, start, strlen( start ) + 1 );
/* Remove whitespaces at the beginning of the string ... */
while (*start == ' ' || *start == '\t')
start++;
/* ... and at the end: */
end = strchr(start, '\0');
while ((*end == ' ' || *end == '\t' || *end == '\n' || *end == '\r')
&& end >= start)
end--;
/* New trailing NULL byte */
*(++end) = '\0';
memmove(String, start, (size_t)(end - start));
} /* ngt_TrimStr */