/*************************************************************************
* (C) 2008 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
*  by Michael Pounov <misho@openbsd-bg.org>
*
* $Author: misho $
* $Id: tools.c,v 1.4 2010/03/22 15:15:48 misho Exp $
*
*************************************************************************/
#include "global.h"
#include "aitcfg.h"
#include "tools.h"

#pragma GCC visibility push(hidden)

// ltrim() Left trim whitespaces
inline int ltrim(u_char *psLine)
{
	int pos = 0;

	if (!psLine)
		return 0;
	pos = strspn((char*) psLine, " \t\r\n");
	if (!pos)
		return 0;

	memmove(psLine, psLine + pos, (strlen((char*) psLine) - pos) + 1);
	return pos;
}

// rtrim() Right trim whitespaces
inline int rtrim(u_char *psLine)
{
	register int i;
	int pos = 0;

	if (!psLine)
		return 0;
	for (i = strlen((char*) psLine) - 1; i; i--) {
		switch (psLine[i]) {
			case ' ':
			case '\t':
			case '\r':
			case '\n':
				psLine[i] = 0;
				pos++;
				continue;
		}
		break;
	}

	return pos;
}

#pragma GCC visibility pop

// trim() Triming all whitespaces both left/right
inline int trim(u_char *psLine)
{
	int ret = 0;

	ret = ltrim(psLine);
	ret += rtrim(psLine);

	return ret;
}

// unquot() Unquoted string
inline int unquot(u_char *psLine)
{
	char *pos, *str = NULL;
	int flg;

	if (!psLine)
		return 0;

	switch (*psLine) {
		case '`':
		case '"':
		case '\'':
			str = strdup((char*) psLine + 1);
			for (pos = str, flg = 0; *pos; flg = ('\\' == *pos), pos++) {
				if (!flg && *pos == *psLine) {
					*pos = 0;
					strlcpy((char*) psLine, str, strlen((char*) psLine) + 1);
					break;
				}
			}
			free(str);
			return 1;
	}

	return 0;
}