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gambas-source-code/main/gbx/gbx_string.c
bgermann 6e2a9d458f Unify BSD ifdefs
2018-09-09 18:26:38 +02:00

1324 lines
24 KiB
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/***************************************************************************
gbx_string.c
(c) 2000-2017 Benoît Minisini <g4mba5@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
***************************************************************************/
#define __STRING_C
#include "gb_common.h"
#include "gb_common_buffer.h"
#include "gb_common_case.h"
#include "gb_common_string.h"
#include "gb_error.h"
#include "gbx_value.h"
#include "gbx_debug.h"
#include "gbx_local.h"
#include "gbx_project.h"
#include "gbx_exec.h"
#include <unistd.h>
#include <pwd.h>
#include <ctype.h>
#include <iconv.h>
#include "gbx_string.h"
//#define DEBUG_ME
#if DEBUG_STRING
#define DEBUG_ME
#endif
#if DEBUG_STRING
char *STRING_watch = NULL;
#endif
/*#ifdef DEBUG_ME
extern FILE *MEMORY_log;
#undef stderr
#define stderr MEMORY_log
static void print_where()
{
fprintf(MEMORY_log, "%s: ", DEBUG_get_current_position());
}
#define DEBUG_where print_where
#endif*/
#if DEBUG_MEMORY
static void *_my_malloc(int size)
{
void *ptr;
ALLOC(&ptr, size);
return ptr;
}
static void _my_free(void *ptr)
{
IFREE(ptr);
}
static void *_my_realloc(void *ptr, int size)
{
REALLOC(&ptr, size);
return ptr;
}
#else
#define _my_malloc my_malloc
#define _my_free my_free
#define _my_realloc my_realloc
#endif
#define STRING_last_count 32
static char *STRING_last[STRING_last_count] = { 0 };
const char STRING_char_table[512] =
"\x00\x00\x01\x00\x02\x00\x03\x00\x04\x00\x05\x00\x06\x00\x07\x00\x08\x00\x09\x00\x0A\x00\x0B\x00\x0C\x00\x0D\x00\x0E\x00\x0F\x00"
"\x10\x00\x11\x00\x12\x00\x13\x00\x14\x00\x15\x00\x16\x00\x17\x00\x18\x00\x19\x00\x1A\x00\x1B\x00\x1C\x00\x1D\x00\x1E\x00\x1F\x00"
"\x20\x00\x21\x00\x22\x00\x23\x00\x24\x00\x25\x00\x26\x00\x27\x00\x28\x00\x29\x00\x2A\x00\x2B\x00\x2C\x00\x2D\x00\x2E\x00\x2F\x00"
"\x30\x00\x31\x00\x32\x00\x33\x00\x34\x00\x35\x00\x36\x00\x37\x00\x38\x00\x39\x00\x3A\x00\x3B\x00\x3C\x00\x3D\x00\x3E\x00\x3F\x00"
"\x40\x00\x41\x00\x42\x00\x43\x00\x44\x00\x45\x00\x46\x00\x47\x00\x48\x00\x49\x00\x4A\x00\x4B\x00\x4C\x00\x4D\x00\x4E\x00\x4F\x00"
"\x50\x00\x51\x00\x52\x00\x53\x00\x54\x00\x55\x00\x56\x00\x57\x00\x58\x00\x59\x00\x5A\x00\x5B\x00\x5C\x00\x5D\x00\x5E\x00\x5F\x00"
"\x60\x00\x61\x00\x62\x00\x63\x00\x64\x00\x65\x00\x66\x00\x67\x00\x68\x00\x69\x00\x6A\x00\x6B\x00\x6C\x00\x6D\x00\x6E\x00\x6F\x00"
"\x70\x00\x71\x00\x72\x00\x73\x00\x74\x00\x75\x00\x76\x00\x77\x00\x78\x00\x79\x00\x7A\x00\x7B\x00\x7C\x00\x7D\x00\x7E\x00\x7F\x00"
"\x80\x00\x81\x00\x82\x00\x83\x00\x84\x00\x85\x00\x86\x00\x87\x00\x88\x00\x89\x00\x8A\x00\x8B\x00\x8C\x00\x8D\x00\x8E\x00\x8F\x00"
"\x90\x00\x91\x00\x92\x00\x93\x00\x94\x00\x95\x00\x96\x00\x97\x00\x98\x00\x99\x00\x9A\x00\x9B\x00\x9C\x00\x9D\x00\x9E\x00\x9F\x00"
"\xA0\x00\xA1\x00\xA2\x00\xA3\x00\xA4\x00\xA5\x00\xA6\x00\xA7\x00\xA8\x00\xA9\x00\xAA\x00\xAB\x00\xAC\x00\xAD\x00\xAE\x00\xAF\x00"
"\xB0\x00\xB1\x00\xB2\x00\xB3\x00\xB4\x00\xB5\x00\xB6\x00\xB7\x00\xB8\x00\xB9\x00\xBA\x00\xBB\x00\xBC\x00\xBD\x00\xBE\x00\xBF\x00"
"\xC0\x00\xC1\x00\xC2\x00\xC3\x00\xC4\x00\xC5\x00\xC6\x00\xC7\x00\xC8\x00\xC9\x00\xCA\x00\xCB\x00\xCC\x00\xCD\x00\xCE\x00\xCF\x00"
"\xD0\x00\xD1\x00\xD2\x00\xD3\x00\xD4\x00\xD5\x00\xD6\x00\xD7\x00\xD8\x00\xD9\x00\xDA\x00\xDB\x00\xDC\x00\xDD\x00\xDE\x00\xDF\x00"
"\xE0\x00\xE1\x00\xE2\x00\xE3\x00\xE4\x00\xE5\x00\xE6\x00\xE7\x00\xE8\x00\xE9\x00\xEA\x00\xEB\x00\xEC\x00\xED\x00\xEE\x00\xEF\x00"
"\xF0\x00\xF1\x00\xF2\x00\xF3\x00\xF4\x00\xF5\x00\xF6\x00\xF7\x00\xF8\x00\xF9\x00\xFA\x00\xFB\x00\xFC\x00\xFD\x00\xFE\x00\xFF\x00";
static int _index = 0;
STRING_MAKE STRING_make_buffer;
#define _make STRING_make_buffer
static iconv_t _conv_unicode_utf8 = (iconv_t)-1;
static iconv_t _conv_utf8_unicode = (iconv_t)-1;
/****************************************************************************
String pool management
****************************************************************************/
#define SIZE_INC 16
#define SIZE_INC2 256
#define REAL_SIZE(_len) ((_len) >= 256 ? (((_len) + (SIZE_INC2 - 1)) & ~(SIZE_INC2 - 1)) : (((_len) + (SIZE_INC - 1)) & ~(SIZE_INC - 1)))
#define POOL_SIZE 16
#define POOL_MAX 64
#define POOL_MAX_LEN (POOL_SIZE * SIZE_INC)
static STRING *_pool[POOL_SIZE] = { 0 };
static char _pool_count[POOL_SIZE] = { 0 };
#ifdef DEBUG_ME
static STRING *alloc_string(int _len) \
{ \
STRING *str; \
int size = REAL_SIZE((_len) + 1 + sizeof(STRING)); \
int pool = (size / SIZE_INC) - 1; \
\
MEMORY_count++; \
fprintf(stderr, "[%d]\n", MEMORY_count); \
\
if (pool < POOL_SIZE && (_pool_count[pool])) \
{ \
str = _pool[pool]; \
fprintf(stderr, "alloc_string: (%p) %d bytes from pool %d [%d]\n", str, size, pool, _pool_count[pool]); \
_pool[pool] = *((STRING **)str); \
_pool_count[pool]--; \
} \
else \
{ \
str = _my_malloc(size); \
if (!str) \
THROW_MEMORY(); \
} \
str->len = (_len); \
str->ref = 1; \
return str; \
}
#else
#define alloc_string(_len) \
({ \
STRING *str; \
int pool = (((_len) + 1 + sizeof(STRING) + (SIZE_INC - 1)) / SIZE_INC) - 1; \
\
MEMORY_count++; \
\
if (pool < POOL_SIZE && (_pool_count[pool])) \
{ \
str = _pool[pool]; \
_pool[pool] = *((STRING **)str); \
_pool_count[pool]--; \
} \
else \
{ \
str = _my_malloc(REAL_SIZE((_len) + 1 + sizeof(STRING))); \
if (!str) \
THROW_MEMORY(); \
} \
str->len = (_len); \
str->ref = 1; \
str; \
})
#endif
extern char *STRING_utf8_current;
void STRING_free_real(char *ptr)
{
STRING *str = STRING_from_ptr(ptr);
int size = REAL_SIZE(str->len + 1 + sizeof(STRING));
int pool = (size / SIZE_INC) - 1;
if (STRING_utf8_current == ptr)
{
//fprintf(stderr, "free STRING_utf8_current (%p)\n", ptr);
STRING_utf8_current = NULL;
}
MEMORY_count--;
#ifdef DEBUG_ME
fprintf(stderr, "[%d]\n", MEMORY_count);
#endif
if (pool < POOL_SIZE)
{
if (_pool_count[pool] < POOL_MAX)
{
#ifdef DEBUG_ME
fprintf(stderr, "STRING_free_real: (%p / %p) %d bytes to pool %d\n", str, ptr, size, pool);
str->ref = 0x87654321;
str->len = 0x87654321;
#endif
*((STRING **)str) = _pool[pool];
_pool[pool] = str;
_pool_count[pool]++;
return;
}
}
_my_free(str);
}
static STRING *realloc_string(STRING *str, int new_len)
{
int size;
int new_size;
if (new_len == str->len)
return str;
size = REAL_SIZE(str->len + 1 + sizeof(STRING));
new_size = REAL_SIZE(new_len + 1 + sizeof(STRING));
if (new_size != size)
{
if (new_len == 0)
{
STRING_free_real(str->data);
return NULL;
}
else if (size > POOL_MAX_LEN && new_size > POOL_MAX_LEN)
{
str = _my_realloc(str, new_size);
//REALLOC(&str, new_size, "realloc_string");
}
else
{
STRING *nstr = alloc_string(new_len);
if (new_len < str->len)
memcpy(nstr->data, str->data, new_len);
else
memcpy(nstr->data, str->data, str->len);
if (str->ref == 1)
STRING_free_real(str->data);
else
str->ref--;
str = nstr;
}
}
str->len = new_len;
return str;
}
static void clear_pool(void)
{
int i;
STRING *str, *next;
for (i = 0; i < POOL_SIZE; i++)
{
#ifdef DEBUG_ME
fprintf(stderr, "clear_pool: clear pool #%d\n", i);
#endif
str = _pool[i];
while (str)
{
next = *((STRING **)str);
#ifdef DEBUG_ME
fprintf(stderr, "%p\n", str);
#endif
_my_free(str);
str = next;
}
}
}
/****************************************************************************
String routines
****************************************************************************/
char *STRING_new(const char *src, int len)
{
STRING *str;
char *data;
if (len == 0)
return NULL;
//ALLOC(&str, REAL_SIZE(len + 1 + sizeof(STRING)), "STRING_new");
str = alloc_string(len);
data = str->data;
if (src)
memcpy(data, src, len);
data[len] = 0;
#ifdef DEBUG_ME
DEBUG_where();
fprintf(stderr, "STRING_new %p ( 0 ) \"%.*s\"\n", data, len, src);
fflush(stderr);
#endif
return data;
}
char *STRING_free_later(char *ptr)
{
/*if (NLast >= MAX_LAST_STRING)
THROW(E_STRING);*/
//static int nfl = 0;
if (ptr)
{
//nfl++;
//fprintf(stderr, "% 8d % 6d\n", nfl, STRING_length(ptr));
#ifdef DEBUG_ME
if (STRING_last[_index])
{
DEBUG_where();
fprintf(stderr, "STRING_free_later: release temp: %p '%s'\n", STRING_last[_index], STRING_last[_index]);
fflush(stderr);
}
#endif
//if (STRING_last[_index] && STRING_length(STRING_last[_index]) >= 1024)
// fprintf(stderr, "STRING_free_later: free [%d] %d\n", _index, STRING_length(STRING_last[_index]));
STRING_unref(&STRING_last[_index]);
#ifdef DEBUG_ME
fprintf(stderr, "STRING_free_later: post temp: %p '%s'\n", ptr, ptr);
fflush(stderr);
#endif
STRING_last[_index] = ptr;
//if (STRING_length(ptr) >= 1024)
// fprintf(stderr, "STRING_free_later: [%d] = %d\n", _index, STRING_length(ptr));
_index++;
if (_index >= STRING_last_count)
_index = 0;
}
return ptr;
}
int STRING_get_free_index(void)
{
return _index;
}
void STRING_clear_cache(void)
{
int i;
for (i = 0; i < STRING_last_count; i++)
{
#ifdef DEBUG_ME
if (STRING_last[i])
fprintf(stderr, "release temp %p '%s'\n", STRING_last[i], STRING_last[i]);
#endif
STRING_unref(&STRING_last[i]);
STRING_last[i] = NULL;
}
_index = 0;
clear_pool();
}
void STRING_exit(void)
{
STRING_clear_cache();
#ifdef DEBUG_ME
fprintf(stderr, "STRING_exit\n");
#endif
if (_conv_unicode_utf8 != ((iconv_t)-1))
iconv_close(_conv_unicode_utf8);
if (_conv_utf8_unicode != ((iconv_t)-1))
iconv_close(_conv_utf8_unicode);
}
char *STRING_extend(char *str, int new_len)
{
STRING *sstr;
if (!str)
{
sstr = alloc_string(new_len);
#ifdef DEBUG_ME
fprintf(stderr, "STRING_extend: NULL -> %p / %p\n", sstr, sstr->data);
#endif
}
else
{
sstr = realloc_string(STRING_from_ptr(str), new_len);
#ifdef DEBUG_ME
fprintf(stderr, "STRING_extend: %p / %p -> %p / %p\n", STRING_from_ptr(str), str, sstr, sstr->data);
#endif
}
return sstr ? sstr->data : NULL;
}
bool STRING_extend_will_realloc(char *str, int new_len)
{
STRING *sstr;
int size;
int new_size;
if (!str)
return new_len != 0;
sstr = STRING_from_ptr(str);
if (new_len == sstr->len)
return FALSE;
size = REAL_SIZE(sstr->len + 1 + sizeof(STRING));
new_size = REAL_SIZE(new_len + 1 + sizeof(STRING));
return size != new_size;
}
void STRING_new_temp_value(VALUE *value, const char *src, int len)
{
value->_string.addr = STRING_new_temp(src, len);
value->_string.len = len; //STRING_length(value->_string.addr);
value->_string.start = 0;
value->type = T_STRING;
}
void STRING_new_constant_value(VALUE *value, const char *src, int len)
{
value->_string.addr = (char *)src;
value->_string.len = ((len < 0) ? strlen(src) : len);
value->_string.start = 0;
value->type = T_CSTRING;
}
void STRING_void_value(VALUE *value)
{
value->type = T_CSTRING;
value->_string.addr = NULL;
value->_string.start = 0;
value->_string.len = 0;
}
#if DEBUG_STRING
void STRING_free(char **ptr)
{
if (*ptr == NULL)
return;
#ifdef DEBUG_ME
DEBUG_where();
fprintf(stderr, "STRING_free: %p\n", *ptr);
fflush(stderr);
#endif
STRING_free_real(*ptr);
*ptr = NULL;
}
void STRING_ref_real(char *ptr)
{
STRING *str;
if (ptr == NULL)
return;
if (ptr == STRING_watch)
BREAKPOINT();
str = STRING_from_ptr(ptr);
#ifdef DEBUG_ME
DEBUG_where();
fprintf(stderr, "STRING_ref: %p ( %d -> %d )\n", ptr, str->ref, str->ref + 1);
if (str->ref < 0 || str->ref > 10000)
fprintf(stderr, "*** BAD\n");
fflush(stderr);
#endif
str->ref++;
}
void STRING_unref_real(char **ptr)
{
STRING *str;
if (*ptr == NULL)
return;
if (*ptr == STRING_watch)
BREAKPOINT();
str = STRING_from_ptr(*ptr);
#ifdef DEBUG_ME
DEBUG_where();
fprintf(stderr, "STRING_unref: %p ( %d -> %d )\n", *ptr, str->ref, str->ref - 1);
if (str->ref < 1 || str->ref > 10000)
{
fprintf(stderr, "*** BAD\n");
BREAKPOINT();
}
fflush(stderr);
#endif
if ((--str->ref) <= 0)
STRING_free(ptr);
}
#endif
void STRING_unref_keep(char **ptr)
{
STRING *str;
if (*ptr == NULL)
return;
str = STRING_from_ptr(*ptr);
if (str->ref > 1)
str->ref--;
else
STRING_free_later(*ptr);
}
/* The get_param argument index starts at 1, not 0! */
#define INDEX_AT 0
#define INDEX_IGNORE (-1)
#define INDEX_ERROR (-2)
static int get_param_index(const char *str, int len, uint *pos, int *len_pattern)
{
uint i;
int index;
bool err;
uchar d;
i = *pos + 1;
d = str[i];
if (d == '&')
{
index = INDEX_AT;
}
else if (d >= '1' && d <= '9')
{
index = d - '0';
}
else if (d == '{')
{
err = FALSE;
index = 0;
for(;;)
{
i++;
if (i >= len)
break;
d = str[i];
if (d == '}')
break;
if (d >= '0' && d <= '9')
index = index * 10 + d - '0';
else
err = TRUE;
}
if (err || index < 1 || index >= 64)
index = INDEX_ERROR;
}
else
{
index = INDEX_IGNORE;
}
if (len_pattern)
*len_pattern = i - *pos + 1;
*pos = i;
return index;
}
char *STRING_subst(const char *str, int len, SUBST_FUNC get_param)
{
uint i;
uchar c;
int np, lenp;
int len_subst;
char *subst;
char *ps;
char *p[64];
int lp[64];
if (!str)
return NULL;
if (len <= 0)
len = strlen(str);
// Comment to force a commit because svn unexpectedly lost my log
if (len == 0)
return NULL;
// Calculate the length
len_subst = len;
for (i = 0; i < len; i++)
{
c = str[i];
if (c == '&')
{
np = get_param_index(str, len, &i, &lenp);
len_subst -= lenp;
switch (np)
{
case INDEX_AT:
len_subst++;
break;
case INDEX_IGNORE:
len_subst += lenp;
break;
case INDEX_ERROR:
break;
default:
np--;
(*get_param)(np + 1, &p[np], &lp[np]);
if (lp[np] < 0)
lp[np] = strlen(p[np]);
len_subst += lp[np];
}
}
}
if (!len_subst)
return NULL;
subst = STRING_new(NULL, len_subst);
ps = subst;
for (i = 0; i < len; i++)
{
c = str[i];
if (c == '&')
{
np = get_param_index(str, len, &i, &lenp);
switch (np)
{
case INDEX_AT:
*ps++ = '&';
break;
case INDEX_IGNORE:
*ps++ = '&';
*ps++ = str[i];
break;
case INDEX_ERROR:
break;
default:
np--;
memcpy(ps, p[np], lp[np]);
ps += lp[np];
}
}
else
*ps++ = c;
}
*ps = 0;
return STRING_free_later(subst);
}
char *STRING_subst_add(const char *str, int len, SUBST_ADD_FUNC add_param)
{
uint i;
char c;
int np;
if (!str)
return NULL;
if (len <= 0)
len = strlen(str);
STRING_start_len(len);
for (i = 0; i < len; i++)
{
c = str[i];
if (c == '&')
{
np = get_param_index(str, len, &i, NULL);
switch (np)
{
case INDEX_AT:
STRING_make_char('&');
break;
case INDEX_IGNORE:
STRING_make_char('&');
STRING_make_char(str[i]);
break;
case INDEX_ERROR:
break;
default:
(*add_param)(np);
}
}
else
STRING_make_char(c);
}
return STRING_end_temp();
}
char *STRING_add(char *str, const char *src, int len)
{
int old_len;
if (len <= 0 && src != NULL)
len = strlen(src);
if (len <= 0)
return str;
if (!str)
return STRING_new(src, len);
old_len = STRING_length(str);
str = STRING_extend(str, old_len + len);
if (src)
{
memcpy(&str[old_len], src, len);
str[old_len + len] = 0;
}
return str;
}
char *STRING_add_char(char *str, char c)
{
int len = STRING_length(str);
char *p;
str = STRING_extend(str, len + 1);
p = str + len;
p[0] = c;
p[1] = 0;
return str;
}
void STRING_start_len(int len)
{
_make.inc = 32;
if (len == 0)
len = 32;
_make.buffer = STRING_new(NULL, len);
_make.max = len;
_make.len = 0;
_make.ptr = _make.buffer;
_make.ntemp = 0;
}
void STRING_make_dump()
{
int n = _make.ntemp;
_make.ntemp = 0;
STRING_make(_make.temp, n);
}
// len == 0 est possible ! On peut vouloir ajouter une chaîne vide.
void STRING_make(const char *src, int len)
{
int pos;
if (!src)
return;
if (len < 0)
len = strlen(src);
if (len <= 0)
return;
if (_make.ntemp)
STRING_make_dump();
_make.len += len;
if (_make.len >= _make.max)
{
pos = (_make.len - _make.max) * 4;
if (pos < _make.inc)
pos = _make.inc;
else
{
_make.inc = (pos + 31) & ~31;
if (_make.inc > 1024)
_make.inc = 1024;
}
_make.max += pos;
//fprintf(stderr, "STRING_extend: %d\n", _max - STRING_length(SUBST_buffer));
pos = _make.ptr - _make.buffer;
_make.buffer = STRING_extend(_make.buffer, _make.max);
_make.ptr = _make.buffer + pos;
}
memcpy(_make.ptr, src, len);
_make.ptr += len;
}
char *STRING_end()
{
if (_make.ntemp)
STRING_make_dump();
if (_make.len)
{
_make.buffer = STRING_extend(_make.buffer, _make.len);
_make.buffer[_make.len] = 0;
}
else
STRING_free(&_make.buffer);
return _make.buffer;
}
char *STRING_end_temp()
{
STRING_end();
if (_make.buffer)
STRING_free_later(_make.buffer);
return _make.buffer;
}
/****************************************************************************
Charset conversion routines
****************************************************************************/
static iconv_t my_iconv_open(const char *dst, const char *src)
{
const char *osrc, *odst;
iconv_t *cache;
iconv_t handle;
osrc = src;
odst = dst;
if (dst == SC_UNICODE)
dst = EXEC_big_endian ? "UCS-4BE" : "UCS-4LE";
else if (dst == SC_UTF8)
dst = "UTF-8";
else if (!dst || *dst == 0)
dst = "ASCII";
if (src == SC_UNICODE)
src = EXEC_big_endian ? "UCS-4BE" : "UCS-4LE";
else if (src == SC_UTF8)
src = "UTF-8";
else if (!src || *src == 0)
src = "ASCII";
if (osrc == SC_UNICODE && odst == SC_UTF8)
cache = &_conv_unicode_utf8;
else if (osrc == SC_UTF8 && odst == SC_UNICODE)
cache = &_conv_utf8_unicode;
else
cache = NULL;
if (cache && *cache != ((iconv_t)-1))
return *cache;
//fprintf(stderr, "iconv_open: %s -> %s\n", src, dst);
handle = iconv_open(dst, src);
if (cache)
*cache = handle;
return handle;
}
static void my_iconv_close(iconv_t handle)
{
if (handle == _conv_unicode_utf8 || handle == _conv_utf8_unicode)
return;
iconv_close(handle);
}
int STRING_conv(char **result, const char *str, int len, const char *src, const char *dst, bool throw)
{
iconv_t handle;
bool err;
const char *in;
char *out;
size_t in_len;
size_t out_len;
size_t ret;
int errcode = 0;
bool unicode;
*result = NULL;
in = str;
in_len = len;
if (len == 0)
return errcode;
unicode = (dst == SC_UNICODE);
handle = my_iconv_open(dst, src);
if (handle == (iconv_t)(-1))
{
if (errno == EINVAL)
errcode = E_UCONV;
else
errcode = E_CONV;
}
else
{
err = FALSE;
for(;;)
{
out = COMMON_buffer;
out_len = COMMON_BUF_MAX;
#if defined(OS_SOLARIS) || defined(OS_BSD)
ret = iconv(handle, &in, &in_len, &out, &out_len);
#else
ret = iconv(handle, (char **)&in, &in_len, &out, &out_len);
#endif
if (ret != (size_t)(-1) || errno == E2BIG)
*result = STRING_add(*result, COMMON_buffer, COMMON_BUF_MAX - out_len);
if (ret != (size_t)(-1))
break;
if (errno != E2BIG)
{
err = TRUE;
break;
}
}
my_iconv_close(handle);
if (unicode)
*result = STRING_add(*result, "\0\0\0", 3);
STRING_extend_end(*result);
if (err)
errcode = E_CONV;
}
if (throw && errcode)
THROW(errcode);
return errcode;
}
char *STRING_conv_to_UTF8(const char *name, int len)
{
char *result = NULL;
if (!name)
return "";
if (LOCAL_is_UTF8)
{
if (len <= 0)
result = (char *)name;
else
result = STRING_new_temp(name, len);
}
else
{
if (len <= 0)
len = strlen(name);
STRING_conv(&result, name, len, LOCAL_encoding, SC_UTF8, TRUE);
}
if (result)
return result;
else
return "";
}
char *STRING_conv_file_name(const char *name, int len)
{
char *result = NULL;
int pos;
struct passwd *info;
char *dir;
char *user;
int err;
if (!name)
return "";
if (len <= 0)
len = strlen(name);
if (len > 0 && *name == '~')
{
for (pos = 0; pos < len; pos++)
{
if (name[pos] == '/')
break;
}
if (pos <= 1)
dir = FILE_get_home();
else
{
user = STRING_new_temp(&name[1], pos - 1);
info = getpwnam(user);
if (info)
dir = info->pw_dir;
else
dir = NULL;
}
if (dir)
{
user = STRING_new_zero(dir);
if (pos < len)
user = STRING_add(user, &name[pos], len - pos);
name = user;
len = STRING_length(name);
STRING_free_later(user);
}
}
if (LOCAL_is_UTF8)
result = STRING_new_temp(name, len);
else
{
err = STRING_conv(&result, name, len, SC_UTF8, LOCAL_encoding, FALSE);
if (err)
result = STRING_new_temp(name, len);
}
//fprintf(stderr, "STRING_conv_file_name: %s\n", result);
if (result)
return result;
else
return "";
}
// Warning! Returns the index starting from 1, and 0 if no match is found.
int STRING_search(const char *ps, int ls, const char *pp, int lp, int is, bool right, bool nocase)
{
int pos, ip, apos;
char *p;
if (lp > ls)
return 0;
if (is < 0)
is += ls;
else if (is == 0)
is = right ? ls : 1;
ls = ls - lp + 1;
if (is > ls)
{
if (!right)
return 0;
else
is = ls;
}
else if (is < lp)
{
if (right)
return 0;
else if (is < 1)
is = 1;
}
is--;
if (lp == 1)
{
char cp = *pp;
if (nocase && cp != tolower(cp))
{
cp = tolower(cp);
if (right)
{
for (; is >= 0; is--)
{
if (tolower(ps[is]) == cp)
return is + 1;
}
}
else
{
for (; is < ls; is++)
{
if (tolower(ps[is]) == cp)
return is + 1;
}
}
}
else
{
if (right)
{
p = memrchr(ps, (uchar)cp, is + 1);
return p ? p - ps + 1 : 0;
/*for (; is >= 0; is--)
{
if (ps[is] == cp)
return is + 1;
}*/
}
else
{
p = memchr(ps + is, (uchar)cp, ls - is);
return p ? p - ps + 1 : 0;
/*for (; is < ls; is++)
{
if (ps[is] == cp)
return is + 1;
}*/
}
}
return 0;
}
pos = 0;
apos = 0;
if (!nocase || pp[0] == tolower(pp[0]))
{
p = memchr(right ? ps : ps + is, (uchar)pp[0], right ? ls : ls - is);
if (!p)
goto __FOUND;
ls -= (int)(p - ps);
is -= (int)(p - ps);
if (is < 0) is = 0;
apos = (int)(p - ps);
ps = p;
p = memrchr(ps, (uchar)pp[0], right ? is + 1 : ls);
if (!p)
goto __FOUND;
ls = (int)(p - ps + 1);
if (is >= ls) is = ls - 1;
}
ps += is;
if (right)
{
if (nocase)
{
for (; is >= 0; is--, ps--)
{
if (tolower(ps[0]) != tolower(pp[0]))
goto __NEXT_RN;
for (ip = 1; ip < lp; ip++)
{
if (tolower(ps[ip]) != tolower(pp[ip]))
goto __NEXT_RN;
}
pos = apos + is + 1;
goto __FOUND;
__NEXT_RN:
;
}
}
else
{
for (; is >= 0; is--, ps--)
{
if (ps[0] != pp[0])
goto __NEXT_R;
for (ip = 1; ip < lp; ip++)
{
if (ps[ip] != pp[ip])
goto __NEXT_R;
}
pos = apos + is + 1;
goto __FOUND;
__NEXT_R:
;
}
}
}
else
{
if (nocase)
{
for (; is < ls; is++, ps++)
{
if (tolower(ps[0]) != tolower(pp[0]))
goto __NEXT_LN;
for (ip = 1; ip < lp; ip++)
{
if (tolower(ps[ip]) != tolower(pp[ip]))
goto __NEXT_LN;
}
pos = apos + is + 1;
goto __FOUND;
__NEXT_LN:
;
}
}
else
{
for (; is < ls; is++, ps++)
{
if (ps[0] != pp[0])
goto __NEXT_L;
if (memcmp(ps + 1, pp + 1, lp - 1))
goto __NEXT_L;
/*for (ip = 1; ip < lp; ip++)
{
if (ps[ip] != pp[ip])
goto __NEXT_L;
}*/
pos = apos + is + 1;
goto __FOUND;
__NEXT_L:
;
}
}
}
__FOUND:
return pos;
}
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