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/* EINA - EFL data type library
* Copyright (C) 2010 Tom Hacohen,
* Brett Nash
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library;
* if not, see <http://www.gnu.org/licenses/>.
*/
#include <Eina.h>
#include "eina_unicode.h"
/* FIXME: check if sizeof(wchar_t) == sizeof(Eina_Unicode) if so,
* probably better to use the standard functions */
/* Maybe I'm too tired, but this is the only thing that actually worked. */
const Eina_Unicode _EINA_UNICODE_EMPTY_STRING[1] = { 0 };
EAPI const Eina_Unicode *EINA_UNICODE_EMPTY_STRING =
_EINA_UNICODE_EMPTY_STRING;
/**
* @brief Same as the standard strcmp just with Eina_Unicode instead of char.
*/
EAPI int
eina_unicode_strcmp(const Eina_Unicode * a, const Eina_Unicode * b)
{
for (; *a && *a == *b; a++, b++);
if (*a == *b)
return 0;
else if (*a < *b)
return -1;
else
return 1;
}
/**
* @brief Same as the standard strcpy just with Eina_Unicode instead of char.
*/
EAPI Eina_Unicode *eina_unicode_strcpy(Eina_Unicode * dest,
const Eina_Unicode * source)
{
Eina_Unicode *ret = dest;
while (*source)
*dest++ = *source++;
*dest = 0;
return ret;
}
/**
* @brief Same as the standard strncpy just with Eina_Unicode instead of char.
*/
EAPI Eina_Unicode *eina_unicode_strncpy(Eina_Unicode * dest,
const Eina_Unicode * source,
size_t n)
{
Eina_Unicode *ret = dest;
for (; n && *source; n--)
*dest++ = *source++;
for (; n; n--)
*dest++ = 0;
return ret;
}
/**
* @brief Same as the standard strlen just with Eina_Unicode instead of char.
*/
EAPI size_t eina_unicode_strlen(const Eina_Unicode * ustr)
{
const Eina_Unicode *end;
for (end = ustr; *end; end++);
return end - ustr;
}
/**
* @brief Returns the length of a Eina_Unicode string, up to a limit.
*
* This function returns the number of characters in string, up to a maximum
* of n. If the terminating character is not found in the string, it returns
* n.
*
* @param ustr String to search
* @param n Max length to search
* @return Number of characters or n.
*/
EAPI size_t eina_unicode_strnlen(const Eina_Unicode * ustr, int n)
{
const Eina_Unicode *end;
const Eina_Unicode *last = ustr + n; /* technically not portable ;-) */
for (end = ustr; end < last && *end; end++);
return end - ustr;
}
/**
* @brief Same as the standard strdup just with Eina_Unicode instead of char.
*/
EAPI Eina_Unicode *eina_unicode_strdup(const Eina_Unicode * text)
{
Eina_Unicode *ustr;
int len;
len = eina_unicode_strlen(text);
ustr = (Eina_Unicode *) calloc(len + 1, sizeof(Eina_Unicode));
memcpy(ustr, text, len * sizeof(Eina_Unicode));
return ustr;
}
/**
* @brief Same as the standard strdup just with Eina_Unicode instead of char.
*/
EAPI Eina_Unicode *eina_unicode_strstr(const Eina_Unicode * haystack,
const Eina_Unicode * needle)
{
const Eina_Unicode *i, *j;
for (i = haystack; *i; i++) {
haystack = i; /* set this location as the base position */
for (j = needle; *j && *i && *j == *i; j++, i++);
if (!*j) { /*if we got to the end of j this means we got a full match */
return (Eina_Unicode *) haystack; /* return the new base position */
}
}
return NULL;
}
/**
* @see eina_str_escape()
*/
EAPI Eina_Unicode *eina_unicode_escape(const Eina_Unicode * str)
{
Eina_Unicode *s2, *d;
const Eina_Unicode *s;
s2 = malloc((eina_unicode_strlen(str) * 2) + 1);
if (!s2)
return NULL;
for (s = str, d = s2; *s != 0; s++, d++) {
if ((*s == ' ') || (*s == '\\') || (*s == '\'')) {
*d = '\\';
d++;
}
*d = *s;
}
*d = 0;
return s2;
}
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