xenocara/app/fvwm/libs/Strings.c

118 lines
2.3 KiB
C
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/*
** Strings.c: various routines for dealing with strings
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "fvwmlib.h"
/************************************************************************
*
* Concatentates 3 strings
*
*************************************************************************/
char CatS[256];
char *CatString3(char *a, char *b, char *c)
{
int len = 0;
if(a != NULL)
len += strlen(a);
if(b != NULL)
len += strlen(b);
if(c != NULL)
len += strlen(c);
if (len > 255)
return NULL;
if(a == NULL)
CatS[0] = 0;
else
strlcpy(CatS, a, sizeof(CatS));
if(b != NULL)
strlcat(CatS, b, sizeof(CatS));
if(c != NULL)
strlcat(CatS, c, sizeof(CatS));
return CatS;
}
/***************************************************************************
* A simple routine to copy a string, stripping spaces and mallocing
* space for the new string
***************************************************************************/
void CopyString(char **dest, char *source)
{
int len;
char *start;
if (source == NULL)
{
*dest = NULL;
return;
}
while(((isspace(*source))&&(*source != '\n'))&&(*source != 0))
{
source++;
}
len = 0;
start = source;
while((*source != '\n')&&(*source != 0))
{
len++;
source++;
}
source--;
while((isspace(*source))&&(*source != 0)&&(len >0))
{
len--;
source--;
}
*dest = safemalloc(len+1);
strncpy(*dest,start,len);
(*dest)[len]=0;
}
/****************************************************************************
*
* Copies a string into a new, malloc'ed string
* Strips leading spaces and trailing spaces and new lines
*
****************************************************************************/
char *stripcpy(char *source)
{
char *tmp,*ptr;
int len;
if(source == NULL)
return NULL;
while(isspace(*source))
source++;
len = strlen(source);
tmp = source + len -1;
while(((isspace(*tmp))||(*tmp == '\n'))&&(tmp >=source))
{
tmp--;
len--;
}
ptr = safemalloc(len+1);
strncpy(ptr,source,len);
ptr[len]=0;
return ptr;
}
int StrEquals(char *s1,char *s2)
{
if (!s1 && !s2)
return 1;
if (!s1 || !s2)
return 0;
return (strcasecmp(s1,s2)==0);
}