IABSD.fr/xenocara/app/fvwm/libs/Strings.c

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• Author : matthieu
  Date : 2006-11-26 10:53:04
  Hash : 3458219f
  Message : Importing from XF4, plus BSD make infrastructure

• app/fvwm/libs/Strings.c

• /*
  ** 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);
  }