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/* -*- mode: c; c-file-style: "openbsd" -*- */
/*
* Copyright (c) 2012 Vincent Bernat <bernat@luffy.cx>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "client.h"
#include <string.h>
#include <ctype.h>
/**
* Check if an element is present in a comma-separated list.
*
* @param list Comma-separated list of elements.
* @param element Element we want to check for.
* @return 0 if the element was not found, 1 otherwise.
*/
int
contains(const char *list, const char *element)
{
int len;
if (element == NULL || list == NULL) return 0;
while (list) {
len = strlen(element);
if (!strncmp(list, element, len) &&
(list[len] == '\0' || list[len] == ','))
return 1;
list = strchr(list, ',');
if (list) list++;
}
return 0;
}
/**
* Transform a string to a tag. This puts the string into lower space and
* replace spaces with '-'. The result is statically allocated.
*
* @param value String to transform to a tag.
* @return The tagged value or the string "none" if @c value is @c NULL
*/
const char *
totag(const char *value)
{
int i;
static char *result = NULL;
free(result);
result = NULL;
if (!value) return "none";
result = calloc(1, strlen(value) + 1);
if (!result) return "none";
for (i = 0; i < strlen(value); i++) {
switch (value[i]) {
case ' ':
result[i] = '-';
break;
default:
result[i] = tolower((int)value[i]);
break;
}
}
return result;
}
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