-/*
- * vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
- */
/* Leave the OpenBSD version below so we can track upstream fixes */
/* $OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $ */
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-/*
- * vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
- */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
+#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
+#include <ctype.h>
+
+#ifdef HAVE_ICONV
+# include <errno.h>
+# include <iconv.h>
+#endif
+
+#include "eina_private.h"
+#include "eina_str.h"
+
+/*============================================================================*
+* Local *
+*============================================================================*/
-static int eina_str_has_suffix_helper(const char *str, const char *suffix,
- int (*cmp)(const char *, const char *));
/**
- * @param dst the destination
- * @param src the source
- * @param siz the size of the destination
- * @return the length of the source string
- * @brief copy a c-string
- *
- * Copy src to string dst of size siz. At most siz-1 characters
- * will be copied. Always NUL terminates (unless siz == 0).
- * Returns strlen(src); if retval >= siz, truncation occurred.
+ * @cond LOCAL
*/
-size_t
+
+/*
+ * Internal helper function used by eina_str_has_suffix() and
+ * eina_str_has_extension()
+ */
+static inline Eina_Bool
+eina_str_has_suffix_helper(const char *str,
+ const char *suffix,
+ int (*cmp)(const char *, const char *))
+{
+ size_t str_len;
+ size_t suffix_len;
+
+ if ((!str) || (!suffix)) return EINA_FALSE;
+ str_len = strlen(str);
+ suffix_len = eina_strlen_bounded(suffix, str_len);
+ if (suffix_len == (size_t)-1)
+ return EINA_FALSE;
+
+ return cmp(str + str_len - suffix_len, suffix) == 0;
+}
+
+static inline char **
+eina_str_split_full_helper(const char *str,
+ const char *delim,
+ int max_tokens,
+ unsigned int *elements)
+{
+ char *s, *pos, **str_array;
+ const char *src;
+ size_t len, dlen;
+ unsigned int tokens = 0, x;
+ const char *idx[256] = {NULL};
+
+ if (max_tokens < 0) max_tokens = 0;
+ if (max_tokens == 1)
+ {
+ str_array = malloc(sizeof(char *) * 2);
+ if (!str_array)
+ {
+ if (elements)
+ *elements = 0;
+
+ return NULL;
+ }
+
+ s = strdup(str);
+ if (!s)
+ {
+ free(str_array);
+ if (elements)
+ *elements = 0;
+
+ return NULL;
+ }
+ if (elements)
+ *elements = 1;
+ str_array[0] = s;
+ return str_array;
+ }
+ dlen = strlen(delim);
+ if (dlen == 0)
+ {
+ if (elements)
+ *elements = 0;
+
+ return NULL;
+ }
+
+ src = str;
+ /* count tokens and check strlen(str) */
+ while (*src != '\0')
+ {
+ const char *d = delim, *d_end = d + dlen;
+ const char *tmp = src;
+ for (; (d < d_end) && (*tmp != '\0'); d++, tmp++)
+ {
+ if (EINA_LIKELY(*d != *tmp))
+ break;
+ }
+ if (EINA_UNLIKELY(d == d_end))
+ {
+ src = tmp;
+ if (tokens < (sizeof(idx) / sizeof(idx[0])))
+ {
+ idx[tokens] = tmp;
+ //printf("token %d='%s'\n", tokens + 1, idx[tokens]);
+ }
+ tokens++;
+ if (tokens && (tokens == (unsigned int)max_tokens)) break;
+ }
+ else
+ src++;
+ }
+ len = src - str + strlen(src);
+
+ str_array = malloc(sizeof(char *) * (tokens + 2));
+ if (!str_array)
+ {
+ if (elements)
+ *elements = 0;
+
+ return NULL;
+ }
+
+ if (!tokens)
+ {
+ s = strdup(str);
+ if (!s)
+ {
+ free(str_array);
+ if (elements)
+ *elements = 0;
+
+ return NULL;
+ }
+ str_array[0] = s;
+ str_array[1] = NULL;
+ if (elements)
+ *elements = 1;
+ return str_array;
+ }
+
+ s = malloc(len + 1);
+ if (!s)
+ {
+ free(str_array);
+ if (elements)
+ *elements = 0;
+
+ return NULL;
+ }
+
+ str_array[0] = s;
+
+ if (len == tokens * dlen)
+ {
+ /* someone's having a laugh somewhere */
+ memset(s, 0, len + 1);
+ for (x = 1; x < tokens + 1; x++)
+ str_array[x] = s + x;
+ str_array[x] = NULL;
+ if (elements)
+ *elements = x;
+ return str_array;
+ }
+ /* copy tokens and string */
+ if (idx[0] - str - dlen > len)
+ {
+ /* FIXME: don't think this can happen but putting this here just in case */
+ abort();
+ }
+ pos = s;
+ for (x = 0; x < MIN(tokens, (sizeof(idx) / sizeof(idx[0]))); x++)
+ {
+ if (x + 1 < (sizeof(idx) / sizeof(idx[0])))
+ {
+ /* first one is special */
+ if (!x)
+ {
+ eina_strlcpy(pos, str, idx[x] - str - dlen + 1);
+ str_array[x] = pos;
+ //printf("str_array[%d] = '%s'\n", x, str_array[x]);
+ pos += idx[x] - str - dlen + 1;
+ if ((tokens == 1) && (idx[0]))
+ {
+ eina_strlcpy(pos, idx[x], len + 1 - (pos - s));
+ x++, tokens++;
+ str_array[x] = pos;
+ }
+ }
+ /* more tokens */
+ else if (idx[x + 1])
+ {
+ eina_strlcpy(pos, idx[x - 1], idx[x] - idx[x - 1] - dlen + 1);
+ str_array[x] = pos;
+ //printf("str_array[%d] = '%s'\n", x, str_array[x]);
+ pos += idx[x] - idx[x - 1] - dlen + 1;
+ }
+ /* last token */
+ else
+ {
+ if (max_tokens && ((unsigned int)max_tokens < tokens + 1))
+ eina_strlcpy(pos, idx[x - 1], len + 1 - (pos - s));
+ else
+ {
+ //printf("diff: %d\n", len + 1 - (pos - s));
+ eina_strlcpy(pos, idx[x - 1], idx[x] - idx[x - 1] - dlen + 1);
+ str_array[x] = pos;
+ //printf("str_array[%d] = '%s'\n", x, str_array[x]);
+ pos += idx[x] - idx[x - 1] - dlen + 1;
+ x++, tokens++;
+ eina_strlcpy(pos, idx[x - 1], len + 1 - (pos - s));
+ }
+ str_array[x] = pos;
+ //printf("str_array[%d] = '%s'\n", x, str_array[x]);
+ }
+ }
+ /* no more tokens saved after this one */
+ else
+ {
+ eina_strlcpy(pos, idx[x - 1], idx[x] - idx[x - 1] - dlen + 1);
+ str_array[x] = pos;
+ //printf("str_array[%d] = '%s'\n", x, str_array[x]);
+ pos += idx[x] - idx[x - 1] - dlen + 1;
+ src = idx[x];
+ x++, tokens++;
+ str_array[x] = s = pos;
+ break;
+ }
+ }
+ if ((x != tokens) && ((!max_tokens) || (x < tokens)))
+ {
+ while (*src != '\0')
+ {
+ const char *d = delim, *d_end = d + dlen;
+ const char *tmp = src;
+ for (; (d < d_end) && (*tmp != '\0'); d++, tmp++)
+ {
+ if (EINA_LIKELY(*d != *tmp))
+ break;
+ }
+ if (((!max_tokens) || (((tokens == (unsigned int)max_tokens) || x < tokens - 2))) && (EINA_UNLIKELY(d == d_end)))
+ {
+ src = tmp;
+ *s = '\0';
+ s++, x++;
+ //printf("str_array[%d] = '%s'\n", x, str_array[x - 1]);
+ str_array[x] = s;
+ }
+ else
+ {
+ *s = *src;
+ s++, src++;
+ }
+ }
+ *s = 0;
+ }
+ str_array[tokens] = NULL;
+ if (elements)
+ *elements = tokens;
+
+ return str_array;
+}
+
+/**
+ * @endcond
+ */
+
+/*============================================================================*
+* Global *
+*============================================================================*/
+
+/*============================================================================*
+* API *
+*============================================================================*/
+
+EAPI size_t
eina_strlcpy(char *dst, const char *src, size_t siz)
{
#ifdef HAVE_STRLCPY
/* Copy as many bytes as will fit */
if (n != 0)
- {
- while (--n != 0)
- {
- if ((*d++ = *s++) == '\0')
- break;
- }
- }
+ while (--n != 0)
+ {
+ if ((*d++ = *s++) == '\0')
+ break;
+ }
/* Not enough room in dst, add NUL and traverse rest of src */
if (n == 0)
{
- if (siz != 0)
- *d = '\0'; /* NUL-terminate dst */
- while (*s++)
- ;
+ if (siz != 0)
+ *d = '\0'; /* NUL-terminate dst */
+
+ while (*s++)
+ ;
}
- return(s - src - 1); /* count does not include NUL */
+ return(s - src - 1); /* count does not include NUL */
#endif
}
-/**
- * @param dst the destination
- * @param src the source
- * @param siz the size of the destination
- * @return the length of the source string plus MIN(siz, strlen(initial dst))
- * @brief append a c-string
- *
- * Appends src to string dst of size siz (unlike strncat, siz is the
- * full size of dst, not space left). At most siz-1 characters
- * will be copied. Always NUL terminates (unless siz <= strlen(dst)).
- * Returns strlen(src) + MIN(siz, strlen(initial dst)).
- * If retval >= siz, truncation occurred.
- */
-size_t
+EAPI size_t
eina_strlcat(char *dst, const char *src, size_t siz)
{
char *d = dst;
/* Find the end of dst and adjust bytes left but don't go past end */
while (n-- != 0 && *d != '\0')
- d++;
+ d++;
dlen = d - dst;
n = siz - dlen;
if (n == 0)
- return(dlen + strlen(s));
+ return(dlen + strlen(s));
+
while (*s != '\0') {
- if (n != 1) {
- *d++ = *s;
- n--;
- }
- s++;
- }
+ if (n != 1)
+ {
+ *d++ = *s;
+ n--;
+ }
+
+ s++;
+ }
*d = '\0';
- return(dlen + (s - src)); /* count does not include NUL */
+ return(dlen + (s - src)); /* count does not include NUL */
}
-/**
- * @param str the string to work with
- * @param prefix the prefix to check for
- * @return true if str has the given prefix
- * @brief checks if the string has the given prefix
- */
-int
+EAPI Eina_Bool
eina_str_has_prefix(const char *str, const char *prefix)
{
size_t str_len;
size_t prefix_len;
str_len = strlen(str);
- prefix_len = strlen(prefix);
- if (prefix_len > str_len)
- return 0;
+ prefix_len = eina_strlen_bounded(prefix, str_len);
+ if (prefix_len == (size_t)-1)
+ return EINA_FALSE;
return (strncmp(str, prefix, prefix_len) == 0);
}
-/**
- * @param str the string to work with
- * @param suffix the suffix to check for
- * @return true if str has the given suffix
- * @brief checks if the string has the given suffix
- */
-int
+EAPI Eina_Bool
eina_str_has_suffix(const char *str, const char *suffix)
{
return eina_str_has_suffix_helper(str, suffix, strcmp);
}
-/**
- * This function does the same like eina_str_has_suffix(), but with a
- * case insensitive compare.
- *
- * @param str the string to work with
- * @param ext the extension to check for
- * @return true if str has the given extension
- * @brief checks if the string has the given extension
- */
-int
+EAPI Eina_Bool
eina_str_has_extension(const char *str, const char *ext)
{
return eina_str_has_suffix_helper(str, ext, strcasecmp);
}
-/*
- * Internal helper function used by eina_str_has_suffix() and
- * eina_str_has_extension()
- */
-static int
-eina_str_has_suffix_helper(const char *str, const char *suffix,
- int (*cmp)(const char *, const char *))
+EAPI char **
+eina_str_split_full(const char *str,
+ const char *delim,
+ int max_tokens,
+ unsigned int *elements)
{
- size_t str_len;
- size_t suffix_len;
-
- str_len = strlen(str);
- suffix_len = strlen(suffix);
- if (suffix_len > str_len)
- return 0;
-
- return cmp(str + str_len - suffix_len, suffix) == 0;
+ return eina_str_split_full_helper(str, delim, max_tokens, elements);
}
-/**
- * Splits a string into a maximum of max_tokens pieces, using the given
- * delimiter. If max_tokens is reached, the final string in the returned
- * string array contains the remainder of string.
- *
- * @param str A string to split.
- * @param delim A string which specifies the places at which to split the
- * string. The delimiter is not included in any of the
- * resulting strings, unless max_tokens is reached.
- * @param max_tokens The maximum number of strings to split string into.
- * If this is less than 1, the string is split completely.
- * @return A newly-allocated NULL-terminated array of strings.
- * To free it: free the first element of the array
- * and the array itself.
- */
-char **
+
+EAPI char **
eina_str_split(const char *str, const char *delim, int max_tokens)
{
- char *s, *sep, **str_array;
- size_t len, dlen;
- int i;
-
- if (*delim == '\0')
- return NULL;
-
- max_tokens = ((max_tokens <= 0) ? (INT_MAX) : (max_tokens - 1));
- len = strlen(str);
- dlen = strlen(delim);
- s = strdup(str);
- str_array = malloc(sizeof(char *) * (len + 1));
- for (i = 0; (i < max_tokens) && (sep = strstr(s, delim)); i++)
- {
- str_array[i] = s;
- s = sep + dlen;
- *sep = 0;
- }
-
- str_array[i++] = s;
- str_array = realloc(str_array, sizeof(char *) * (i + 1));
- str_array[i] = NULL;
-
- return str_array;
+ return eina_str_split_full_helper(str, delim, max_tokens, NULL);
}
-/**
- * Join two strings of known length and store the result in @a dst buffer.
- *
- * @param dst where to store the result.
- * @param size byte size of dst, will write at most (size - 1)
- * characters and then the '\0' (null terminator).
- * @param sep separator character to use.
- * @param a first string to use, before @a sep.
- * @param a_len length of @a a, not including '\0' (strlen()-like)
- * @param b second string to use, after @a sep.
- * @param b_len length of @a b, not including '\0' (strlen()-like)
- *
- * @return the number of characters printed (not including the
- * trailing '\0' used to end output to strings). Just like
- * snprintf(), it will not write more than @a size bytes, thus a
- * return value of @a size or more means that the output was
- * truncated.
- *
- * @see eina_str_join() and eina_str_join_static()
- */
-size_t
-eina_str_join_len(char *dst, size_t size, char sep, const char *a, size_t a_len, const char *b, size_t b_len)
+EAPI size_t
+eina_str_join_len(char *dst,
+ size_t size,
+ char sep,
+ const char *a,
+ size_t a_len,
+ const char *b,
+ size_t b_len)
{
size_t ret = a_len + b_len + 1;
size_t off;
- if (size < 1) return ret;
+ if (size < 1)
+ return ret;
if (size <= a_len)
{
- memcpy(dst, a, size - 1);
- dst[size - 1] = '\0';
- return ret;
+ memcpy(dst, a, size - 1);
+ dst[size - 1] = '\0';
+ return ret;
}
- memcpy(dst, a, a_len);
+ memcpy(dst, a, a_len);
off = a_len;
if (size <= off + 1)
{
- dst[size - 1] = '\0';
- return ret;
+ dst[size - 1] = '\0';
+ return ret;
}
dst[off] = sep;
if (size <= off + b_len + 1)
{
- memcpy(dst + off, b, size - off - 1);
- dst[size - 1] = '\0';
- return ret;
+ memcpy(dst + off, b, size - off - 1);
+ dst[size - 1] = '\0';
+ return ret;
}
- memcpy(dst + off, b, b_len);
+ memcpy(dst + off, b, b_len);
dst[off + b_len] = '\0';
return ret;
}
+
+#ifdef HAVE_ICONV
+EAPI char *
+eina_str_convert(const char *enc_from, const char *enc_to, const char *text)
+{
+ iconv_t ic;
+ char *new_txt, *inp, *outp;
+ size_t inb, outb, outlen, tob, outalloc;
+
+ if (!text)
+ return NULL;
+
+ ic = iconv_open(enc_to, enc_from);
+ if (ic == (iconv_t)(-1))
+ return NULL;
+
+ new_txt = malloc(64);
+ inb = strlen(text);
+ outb = 64;
+ inp = (char *)text;
+ outp = new_txt;
+ outalloc = 64;
+ outlen = 0;
+
+ for (;; )
+ {
+ size_t count;
+
+ tob = outb;
+ count = iconv(ic, &inp, &inb, &outp, &outb);
+ outlen += tob - outb;
+ if (count == (size_t)(-1))
+ {
+ if (errno == E2BIG)
+ {
+ new_txt = realloc(new_txt, outalloc + 64);
+ outp = new_txt + outlen;
+ outalloc += 64;
+ outb += 64;
+ }
+ else if (errno == EILSEQ)
+ {
+ if (new_txt)
+ free(new_txt);
+
+ new_txt = NULL;
+ break;
+ }
+ else if (errno == EINVAL)
+ {
+ if (new_txt)
+ free(new_txt);
+
+ new_txt = NULL;
+ break;
+ }
+ else
+ {
+ if (new_txt)
+ free(new_txt);
+
+ new_txt = NULL;
+ break;
+ }
+ }
+
+ if (inb == 0)
+ {
+ if (outalloc == outlen)
+ new_txt = realloc(new_txt, outalloc + 1);
+
+ new_txt[outlen] = 0;
+ break;
+ }
+ }
+ iconv_close(ic);
+ return new_txt;
+}
+#else
+EAPI char *
+eina_str_convert(const char *enc_from __UNUSED__,
+ const char *enc_to __UNUSED__,
+ const char *text __UNUSED__)
+{
+ return NULL;
+}
+#endif
+
+EAPI char *
+eina_str_escape(const char *str)
+{
+ char *s2, *d;
+ const char *s;
+
+ s2 = malloc((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;
+}
+
+EAPI void
+eina_str_tolower(char **str)
+{
+ char *p;
+ if ((!str) || (!(*str)))
+ return;
+
+ for (p = *str; (*p); p++)
+ *p = tolower((unsigned char )(*p));
+}
+
+EAPI void
+eina_str_toupper(char **str)
+{
+ char *p;
+ if ((!str) || (!(*str)))
+ return;
+
+ for (p = *str; (*p); p++)
+ *p = toupper((unsigned char)(*p));
+}
projects / framework / uifw / eina.git / blobdiff