4c02c6d338
[CONFIGURATION] * NEW: 64 bits port. [EXAMPLES] * BUG: Fixed the AnalogWatch example. [WIKI CGI SCRIPT] * NEW: Some little cosmetic changes. [INTERPRETER] * NEW: The extern function implementation has been redesigned and is now based on libffi, so that it works on 64 bits system. Because of a flaw in the compiler design, projects that use the Pointer datatype must be recompiled to be used on a 64 bits system. This flaw will be fixed in Gambas 3. * OPT: Put some tables into read-only memory. About 1000 bytes are saved for each running interpreter, except the first one. * BUG: Does not crash anymore if a component cannot be loaded. * NEW: Spanish translation updated. * NEW: A new interpreter API for returning a pointer. [COMPILER] * BUG: Correctly compiles LONG constants inside code. [GB.DEBUG] * BUG: Compiles and links the gb.debug components with the thread libraries. [GB.DB.SQLITE3] * BUG: Getting the primary index of a table without primary index is safe now. [GB.GTK] * BUG: Modified the GLib priority of watched descriptors, as the main loop could enter in a loop in which user interface events were not managed. * BUG: Message boxes use application title without crashing now. [GB.OPENGL] * BUG: Disable dead code. [GB.QT.EXT] * BUG: TextEdit.TextWidth and TextEdit.TextHeight were not declared as read-only properties. [GB.XML.XSLT] * BUG: XSLT class is now declared as being not creatable. git-svn-id: svn://localhost/gambas/trunk@1006 867c0c6c-44f3-4631-809d-bfa615b0a4ec
740 lines
14 KiB
C
740 lines
14 KiB
C
/***************************************************************************
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String.c
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The String management routines
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(c) 2000-2007 Benoit Minisini <gambas@users.sourceforge.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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***************************************************************************/
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#define __STRING_C
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#include "gb_common.h"
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#include "gb_common_buffer.h"
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#include "gb_common_case.h"
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#include "gb_error.h"
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#include "gbx_value.h"
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#include "gbx_debug.h"
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#include "gbx_local.h"
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#include <unistd.h>
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#include <pwd.h>
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#include <ctype.h>
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#include <iconv.h>
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#include "gbx_string.h"
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#if DEBUG_STRING
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#define DEBUG_ME
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#endif
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#define STRING_last_count 32
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static char *STRING_last[STRING_last_count] = { 0 };
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static const char _char_string[512] =
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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"
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"\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";
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static int _index = 0;
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//static HASH_TABLE *_intern = NULL;
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void STRING_new(char **ptr, const char *src, int len)
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{
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STRING *str;
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if (len <= 0 && src != NULL)
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len = strlen(src);
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if (len <= 0)
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{
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*ptr = NULL;
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return;
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}
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ALLOC(&str, len + 1 + sizeof(STRING), "STRING_new");
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str->len = len;
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str->ref = 1;
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if (src != NULL)
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memcpy(str->data, src, len);
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str->data[len] = 0;
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*ptr = str->data;
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#ifdef DEBUG_ME
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DEBUG_where();
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printf("STRING_new %p ( 0 ) \"%.*s\"\n", *ptr, len, src);
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fflush(NULL);
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#endif
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}
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static void post_free(char *ptr)
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{
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/*if (NLast >= MAX_LAST_STRING)
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THROW(E_STRING);*/
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#ifdef DEBUG_ME
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if (STRING_last[_index])
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{
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DEBUG_where();
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printf("STRING: release temp: %p '%s'\n", STRING_last[_index], STRING_last[_index]);
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fflush(NULL);
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}
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#endif
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STRING_unref(&STRING_last[_index]);
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#ifdef DEBUG_ME
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printf("STRING: post temp: %p '%s'\n", ptr, ptr);
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fflush(NULL);
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#endif
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STRING_last[_index] = ptr;
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_index++;
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if (_index >= STRING_last_count)
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_index = 0;
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}
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int STRING_get_free_index(void)
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{
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return _index;
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}
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void STRING_new_temp(char **ptr, const char *src, int len)
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{
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STRING_new(ptr, src, len);
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if (*ptr)
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post_free(*ptr);
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}
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/*void STRING_init(void)
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{
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HASH_TABLE_create(&_intern, 0, GB_COMP_TEXT);
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}*/
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void STRING_exit(void)
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{
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int i;
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for (i = 0; i < STRING_last_count; i++)
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{
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/*if (STRING_last[i])
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printf("release temp %p '%s'\n", STRING_last[i], STRING_last[i]);*/
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STRING_unref(&STRING_last[i]);
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STRING_last[i] = NULL;
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}
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_index = 0;
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}
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void STRING_extend(char **ptr, int new_len)
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{
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STRING *str;
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int len = STRING_length(*ptr);
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if (new_len == len)
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return;
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if (new_len == 0)
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{
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STRING_free(ptr);
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return;
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}
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if (len == 0)
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{
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ALLOC(&str, new_len + 1 + sizeof(STRING), "STRING_extend");
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str->ref = 1;
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}
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else
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{
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str = STRING_from_ptr(*ptr);
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REALLOC(&str, new_len + 1 + sizeof(STRING), "STRING_extend");
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}
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str->len = new_len;
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*ptr = str->data;
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}
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void STRING_extend_end(char **ptr)
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{
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if (*ptr)
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{
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(*ptr)[STRING_length(*ptr)] = 0;
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post_free(*ptr);
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}
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}
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void STRING_copy_from_value_temp(char **ptr, VALUE *value)
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{
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if (value->_string.len == 0)
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*ptr = NULL;
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else if (value->type == T_STRING && value->_string.start == 0 && value->_string.len == STRING_length(value->_string.addr))
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*ptr = value->_string.addr;
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else
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STRING_new_temp(ptr, &value->_string.addr[value->_string.start], value->_string.len);
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}
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/* Attention ! Contrairement <20>STRING_new, STRING_new_temp_value cr<63> des
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cha<68>es temporaires.
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*/
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void STRING_new_temp_value(VALUE *value, const char *src, int len)
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{
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STRING_new_temp(&(value->_string.addr), src, len);
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value->_string.len = STRING_length(value->_string.addr);
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value->_string.start = 0;
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value->type = T_STRING;
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}
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void STRING_new_constant_value(VALUE *value, const char *src, int len)
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{
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value->_string.addr = (char *)src;
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value->_string.len = ((len < 0) ? strlen(src) : len);
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value->_string.start = 0;
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value->type = T_CSTRING;
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}
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void STRING_void_value(VALUE *value)
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{
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value->type = T_CSTRING;
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value->_string.addr = NULL;
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value->_string.start = 0;
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value->_string.len = 0;
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}
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void STRING_char_value(VALUE *value, uchar car)
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{
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value->type = T_CSTRING;
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value->_string.addr = (char *)&_char_string[(int)car * 2];
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value->_string.start = 0;
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value->_string.len = 1;
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}
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void STRING_free(char **ptr)
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{
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STRING *str;
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if (*ptr == NULL)
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return;
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str = STRING_from_ptr(*ptr);
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#ifdef DEBUG_ME
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DEBUG_where();
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printf("STRING_free %p %p\n", *ptr, ptr);
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fflush(NULL);
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#endif
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str->ref = 1000000000L;
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FREE(&str, "STRING_free");
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*ptr = NULL;
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#ifdef DEBUG_ME
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printf("OK\n");
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#endif
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}
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int STRING_comp_value(VALUE *str1, VALUE *str2)
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{
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uint i;
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int len = Min(str1->_string.len, str2->_string.len);
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int diff;
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register const char *s1;
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register const char *s2;
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register char c1, c2;
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s1 = str1->_string.addr + str1->_string.start;
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s2 = str2->_string.addr + str2->_string.start;
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for (i = 0; i < len; i++)
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{
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c1 = s1[i];
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c2 = s2[i];
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if (c1 > c2) return 1;
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if (c1 < c2) return -1;
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}
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diff = str1->_string.len - str2->_string.len;
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return (diff < 0) ? (-1) : (diff > 0) ? 1 : 0;
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}
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int STRING_comp_value_ignore_case(VALUE *str1, VALUE *str2)
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{
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int i;
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int len = Min(str1->_string.len, str2->_string.len);
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int diff;
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register const char *s1;
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register const char *s2;
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register char c1, c2;
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s1 = str1->_string.addr + str1->_string.start;
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s2 = str2->_string.addr + str2->_string.start;
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for (i = 0; i < len; i++)
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{
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c1 = tolower(s1[i]);
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c2 = tolower(s2[i]);
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if (c1 > c2) return 1;
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if (c1 < c2) return -1;
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}
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diff = str1->_string.len - str2->_string.len;
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return (diff < 0) ? (-1) : (diff > 0) ? 1 : 0;
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}
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#if DEBUG_STRING
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void STRING_ref(char *ptr)
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{
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STRING *str;
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if (ptr == NULL)
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return;
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str = STRING_from_ptr(ptr);
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#ifdef DEBUG_ME
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DEBUG_where();
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printf("STRING_ref %p ( %ld -> %ld )\n", ptr, str->ref, str->ref + 1);
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if (str->ref < 0 || str->ref > 10000)
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printf("*** BAD\n");
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fflush(NULL);
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#endif
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str->ref++;
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}
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void STRING_unref(char **ptr)
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{
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STRING *str;
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if (*ptr == NULL)
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return;
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str = STRING_from_ptr(*ptr);
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#ifdef DEBUG_ME
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DEBUG_where();
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printf("STRING_unref %p ( %ld -> %ld )\n", *ptr, str->ref, str->ref - 1);
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if (str->ref < 1 || str->ref > 10000)
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printf("*** BAD\n");
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fflush(NULL);
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#endif
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if ((--str->ref) <= 0)
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STRING_free(ptr);
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}
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#endif
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void STRING_unref_keep(char **ptr)
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{
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STRING *str;
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if (*ptr == NULL)
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return;
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str = STRING_from_ptr(*ptr);
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if (str->ref > 1)
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str->ref--;
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else
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post_free(*ptr);
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}
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char *STRING_subst(const char *str, int len, SUBST_FUNC get_param)
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{
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uint i;
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uchar c, d;
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int np;
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char *p;
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int lp;
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if (!str)
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return NULL;
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SUBST_init();
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if (len <= 0)
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len = strlen(str);
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for (i = 0; i < len; i++)
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{
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c = str[i];
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if (c == '&' && (i < (len - 1)))
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{
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d = str[i + 1];
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if (isdigit(d))
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{
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np = d - '0';
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i++;
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if (i < (len - 1))
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{
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d = str[i + 1];
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if (isdigit(d))
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{
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np = np * 10 + d - '0';
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i++;
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}
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}
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p = NULL;
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lp = 0;
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(*get_param)(np, &p, &lp);
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if (p)
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SUBST_add(p, lp);
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continue;
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}
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else if (d == '&')
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i++;
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}
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SUBST_add_char(c);
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}
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SUBST_exit();
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return SUBST_buffer();
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}
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void STRING_add(char **ptr, const char *src, int len)
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{
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int old_len;
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if (len <= 0 && src != NULL)
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len = strlen(src);
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if (len <= 0)
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return;
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old_len = STRING_length(*ptr);
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STRING_extend(ptr, old_len + len);
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memcpy(&((*ptr)[old_len]), src, len);
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(*ptr)[old_len + len] = 0;
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}
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|
||
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;
|
||
|
||
*result = NULL;
|
||
|
||
in = str;
|
||
in_len = len;
|
||
|
||
if (len == 0)
|
||
return errcode;
|
||
|
||
if (!dst || *dst == 0)
|
||
dst = "ASCII";
|
||
|
||
if (!src || *src == 0)
|
||
src = "ASCII";
|
||
|
||
handle = 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_FREEBSD) || defined(OS_OPENBSD)
|
||
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)
|
||
STRING_add(result, COMMON_buffer, COMMON_BUF_MAX - out_len);
|
||
|
||
if (ret != (size_t)(-1))
|
||
break;
|
||
|
||
if (errno != E2BIG)
|
||
{
|
||
err = TRUE;
|
||
break;
|
||
}
|
||
}
|
||
|
||
iconv_close(handle);
|
||
|
||
//STRING_add(result, "\0\0\0", sizeof(wchar_t) - 1);
|
||
|
||
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
|
||
STRING_new_temp(&result, name, len);
|
||
}
|
||
else
|
||
{
|
||
if (len <= 0)
|
||
len = strlen(name);
|
||
|
||
STRING_conv(&result, name, len, LOCAL_encoding, "UTF-8", 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 *user;
|
||
|
||
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)
|
||
info = getpwuid(getuid());
|
||
else
|
||
{
|
||
STRING_new_temp(&user, &name[1], pos - 1);
|
||
info = getpwnam(user);
|
||
}
|
||
|
||
if (info)
|
||
{
|
||
STRING_new(&user, info->pw_dir, 0);
|
||
if (pos < len)
|
||
STRING_add(&user, &name[pos], len - pos);
|
||
name = user;
|
||
len = STRING_length(name);
|
||
post_free(user);
|
||
}
|
||
|
||
}
|
||
|
||
if (LOCAL_is_UTF8)
|
||
STRING_new_temp(&result, name, len);
|
||
else
|
||
STRING_conv(&result, name, len, "UTF-8", LOCAL_encoding, TRUE);
|
||
|
||
//fprintf(stderr, "STRING_conv_file_name: %s\n", result);
|
||
|
||
if (result)
|
||
return result;
|
||
else
|
||
return "";
|
||
}
|
||
|
||
|
||
int STRING_search(const char *ps, int ls, const char *pp, int lp, int is, bool right, bool nocase)
|
||
{
|
||
int pos = 0, ip;
|
||
|
||
if (lp > ls)
|
||
goto __FOUND;
|
||
|
||
ls = ls - lp + 1; /* Longueur du début du texte où effectuer la recherche */
|
||
|
||
if (is < 0)
|
||
is = ls - is;
|
||
else if (is == 0)
|
||
is = right ? ls : 1;
|
||
else if (is > ls)
|
||
goto __FOUND;
|
||
|
||
is--;
|
||
|
||
ps += is;
|
||
|
||
if (right)
|
||
{
|
||
if (nocase)
|
||
{
|
||
for (; is >= 0; is--, ps--)
|
||
{
|
||
for (ip = 0; ip < lp; ip++)
|
||
{
|
||
if (tolower(ps[ip]) != tolower(pp[ip]))
|
||
goto __NEXT_RN;
|
||
}
|
||
|
||
pos = is + 1;
|
||
goto __FOUND;
|
||
|
||
__NEXT_RN:
|
||
;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
for (; is >= 0; is--, ps--)
|
||
{
|
||
for (ip = 0; ip < lp; ip++)
|
||
{
|
||
if (ps[ip] != pp[ip])
|
||
goto __NEXT_R;
|
||
}
|
||
|
||
pos = is + 1;
|
||
goto __FOUND;
|
||
|
||
__NEXT_R:
|
||
;
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (nocase)
|
||
{
|
||
for (; is < ls; is++, ps++)
|
||
{
|
||
for (ip = 0; ip < lp; ip++)
|
||
{
|
||
if (tolower(ps[ip]) != tolower(pp[ip]))
|
||
goto __NEXT_LN;
|
||
}
|
||
|
||
pos = is + 1;
|
||
goto __FOUND;
|
||
|
||
__NEXT_LN:
|
||
;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
for (; is < ls; is++, ps++)
|
||
{
|
||
for (ip = 0; ip < lp; ip++)
|
||
{
|
||
if (ps[ip] != pp[ip])
|
||
goto __NEXT_L;
|
||
}
|
||
|
||
pos = is + 1;
|
||
goto __FOUND;
|
||
|
||
__NEXT_L:
|
||
;
|
||
}
|
||
}
|
||
}
|
||
|
||
__FOUND:
|
||
|
||
return pos;
|
||
}
|
||
|
||
|
||
/*void *STRING_intern(const char *str, int len)
|
||
{
|
||
return HASH_TABLE_insert(_intern, str, len);
|
||
}*/
|