1 0f3e84f4 2003-01-13 alex /*
  2 0f3e84f4 2003-01-13 alex  * ngIRCd -- The Next Generation IRC Daemon
  3 39f1ddd9 2005-01-25 alex  * Copyright (c)2001-2005 Alexander Barton (alex@barton.de)
  4 0f3e84f4 2003-01-13 alex  *
  5 0f3e84f4 2003-01-13 alex  * This program is free software; you can redistribute it and/or modify
  6 0f3e84f4 2003-01-13 alex  * it under the terms of the GNU General Public License as published by
  7 0f3e84f4 2003-01-13 alex  * the Free Software Foundation; either version 2 of the License, or
  8 0f3e84f4 2003-01-13 alex  * (at your option) any later version.
  9 0f3e84f4 2003-01-13 alex  * Please read the file COPYING, README and AUTHORS for more information.
 10 0f3e84f4 2003-01-13 alex  *
 11 0f3e84f4 2003-01-13 alex  * Tool functions
 12 0f3e84f4 2003-01-13 alex  */
 13 0f3e84f4 2003-01-13 alex 
 14 0f3e84f4 2003-01-13 alex 
 15 0f3e84f4 2003-01-13 alex #include "portab.h"
 16 0f3e84f4 2003-01-13 alex 
 17 097c7bd7 2006-04-09 alex static char UNUSED id[] = "$Id: tool.c,v 1.6 2006/04/09 12:53:07 alex Exp $";
 18 0f3e84f4 2003-01-13 alex 
 19 0f3e84f4 2003-01-13 alex #include "imp.h"
 20 0f3e84f4 2003-01-13 alex #include <assert.h>
 21 0f3e84f4 2003-01-13 alex #include <ctype.h>
 22 0f3e84f4 2003-01-13 alex #include <stdio.h>
 23 0f3e84f4 2003-01-13 alex #include <string.h>
 24 0f3e84f4 2003-01-13 alex 
 25 0f3e84f4 2003-01-13 alex #include "exp.h"
 26 0f3e84f4 2003-01-13 alex #include "tool.h"
 27 0f3e84f4 2003-01-13 alex 
 28 0f3e84f4 2003-01-13 alex 
 29 cba92708 2006-03-22 alex /**
 30 cba92708 2006-03-22 alex  * Removes all leading and trailing whitespaces of a string.
 31 cba92708 2006-03-22 alex  * @param String The string to remove whitespaces from.
 32 cba92708 2006-03-22 alex  */
 33 8adff592 2005-03-19 fw GLOBAL void
 34 cba92708 2006-03-22 alex ngt_TrimStr(char *String)
 35 0f3e84f4 2003-01-13 alex {
 36 cba92708 2006-03-22 alex 	char *start, *end;
 37 0f3e84f4 2003-01-13 alex 
 38 cba92708 2006-03-22 alex 	assert(String != NULL);
 39 0f3e84f4 2003-01-13 alex 
 40 0f3e84f4 2003-01-13 alex 	start = String;
 41 0f3e84f4 2003-01-13 alex 
 42 cba92708 2006-03-22 alex 	/* Remove whitespaces at the beginning of the string ... */
 43 097c7bd7 2006-04-09 alex 	while (*start == ' ' || *start == '\t' ||
 44 097c7bd7 2006-04-09 alex 	       *start == '\n' || *start == '\r')
 45 cba92708 2006-03-22 alex 		start++;
 46 cba92708 2006-03-22 alex 
 47 bebfbedf 2006-03-24 fw 	if (!*start) {
 48 097c7bd7 2006-04-09 alex 		*String = '\0';
 49 bebfbedf 2006-03-24 fw 		return;
 50 bebfbedf 2006-03-24 fw 	}
 51 097c7bd7 2006-04-09 alex 
 52 cba92708 2006-03-22 alex 	/* ... and at the end: */
 53 cba92708 2006-03-22 alex 	end = strchr(start, '\0');
 54 bebfbedf 2006-03-24 fw 	end--;
 55 cba92708 2006-03-22 alex 	while ((*end == ' ' || *end == '\t' || *end == '\n' || *end == '\r')
 56 097c7bd7 2006-04-09 alex 	       && end >= start)
 57 cba92708 2006-03-22 alex 		end--;
 58 cba92708 2006-03-22 alex 
 59 cba92708 2006-03-22 alex 	/* New trailing NULL byte */
 60 cba92708 2006-03-22 alex 	*(++end) = '\0';
 61 cba92708 2006-03-22 alex 
 62 bebfbedf 2006-03-24 fw 	memmove(String, start, (size_t)(end - start)+1);
 63 0f3e84f4 2003-01-13 alex } /* ngt_TrimStr */
 64 0f3e84f4 2003-01-13 alex 
 65 0f3e84f4 2003-01-13 alex 
 66 8adff592 2005-03-19 fw GLOBAL char *
 67 8adff592 2005-03-19 fw ngt_LowerStr( char *String )
 68 0f3e84f4 2003-01-13 alex {
 69 0f3e84f4 2003-01-13 alex 	/* String in Kleinbuchstaben konvertieren. Der uebergebene
 70 0f3e84f4 2003-01-13 alex 	 * Speicherbereich wird durch das Ergebnis ersetzt, zusaetzlich
 71 0f3e84f4 2003-01-13 alex 	 * wird dieser auch als Pointer geliefert. */
 72 0f3e84f4 2003-01-13 alex 
 73 8adff592 2005-03-19 fw 	char *ptr;
 74 0f3e84f4 2003-01-13 alex 
 75 0f3e84f4 2003-01-13 alex 	assert( String != NULL );
 76 0f3e84f4 2003-01-13 alex 
 77 0f3e84f4 2003-01-13 alex 	/* Zeichen konvertieren */
 78 0f3e84f4 2003-01-13 alex 	ptr = String;
 79 0f3e84f4 2003-01-13 alex 	while( *ptr )
 80 0f3e84f4 2003-01-13 alex 	{
 81 0f3e84f4 2003-01-13 alex 		*ptr = tolower( *ptr );
 82 0f3e84f4 2003-01-13 alex 		ptr++;
 83 0f3e84f4 2003-01-13 alex 	}
 84 0f3e84f4 2003-01-13 alex 	
 85 0f3e84f4 2003-01-13 alex 	return String;
 86 0f3e84f4 2003-01-13 alex } /* ngt_LowerStr */
 87 0f3e84f4 2003-01-13 alex 
 88 0f3e84f4 2003-01-13 alex 
 89 8adff592 2005-03-19 fw GLOBAL void
 90 8adff592 2005-03-19 fw ngt_TrimLastChr( char *String, const char Chr)
 91 39f1ddd9 2005-01-25 alex {
 92 39f1ddd9 2005-01-25 alex 	/* If last character in the string matches Chr, remove it.
 93 39f1ddd9 2005-01-25 alex 	 * Empty strings are handled correctly. */
 94 39f1ddd9 2005-01-25 alex 
 95 8adff592 2005-03-19 fw         unsigned int len;
 96 39f1ddd9 2005-01-25 alex 
 97 39f1ddd9 2005-01-25 alex 	assert( String != NULL );
 98 39f1ddd9 2005-01-25 alex 
 99 39f1ddd9 2005-01-25 alex 	len = strlen( String );
100 39f1ddd9 2005-01-25 alex 	if( len == 0 ) return;
101 39f1ddd9 2005-01-25 alex 
102 39f1ddd9 2005-01-25 alex 	len--;
103 39f1ddd9 2005-01-25 alex 
104 39f1ddd9 2005-01-25 alex 	if( String[len] == Chr ) String[len] = '\0';
105 39f1ddd9 2005-01-25 alex } /* ngt_TrimLastChr */
106 39f1ddd9 2005-01-25 alex 
107 39f1ddd9 2005-01-25 alex 
108 0f3e84f4 2003-01-13 alex /* -eof- */