e531a4e05f
* BUG: Fix many gcc 4.6.1 warnings. * NEW: Update the depcomp sript with a more recent version. [GB.DB.POSTGRESQL] * BUG: Fix primary index retrieving for tables inside a schema. git-svn-id: svn://localhost/gambas/trunk@4203 867c0c6c-44f3-4631-809d-bfa615b0a4ec
1013 lines
17 KiB
C
1013 lines
17 KiB
C
/***************************************************************************
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gbx_subr_string.c
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(c) 2000-2011 Benoît 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 2, 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., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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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 <ctype.h>
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#include <regex.h>
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#include "gb_pcode.h"
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#include "gbx_value.h"
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#include "gbx_subr.h"
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#include "gbx_regexp.h"
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#include "gbx_class.h"
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#include "gbx_string.h"
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#include "gbx_c_array.h"
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#include "gbx_local.h"
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#include "gbx_compare.h"
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void SUBR_cat(ushort code)
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{
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SUBR_ENTER();
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if (NPARAM == 2)
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{
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int len, len2;
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char *str;
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VALUE_conv_string(&PARAM[0]);
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len = PARAM[0]._string.len ;
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VALUE_conv_string(&PARAM[1]);
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len2 = PARAM[1]._string.len;
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str = STRING_new(NULL, len + len2);
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memcpy(str, PARAM[0]._string.addr + PARAM[0]._string.start, len);
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RELEASE_STRING(&PARAM[0]);
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memcpy(&str[len], PARAM[1]._string.addr + PARAM[1]._string.start, len2);
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RELEASE_STRING(&PARAM[1]);
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SP -= 2;
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SP->type = T_STRING;
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SP->_string.addr = str;
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SP->_string.start = 0;
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SP->_string.len = len + len2;
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SP++;
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}
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else
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{
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int i;
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int len, len_cat;
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char *str, *ptr;
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len_cat = 0;
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for (i = 0; i < NPARAM; i++)
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{
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VALUE_conv_string(&PARAM[i]);
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len_cat += PARAM[i]._string.len;
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}
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str = STRING_new(NULL, len_cat);
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ptr = str;
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i = NPARAM;
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while (i--)
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{
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len = PARAM->_string.len;
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if (len)
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{
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memcpy(ptr, PARAM->_string.addr + PARAM->_string.start, len);
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ptr += len;
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}
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RELEASE_STRING(PARAM);
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PARAM++;
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}
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SP -= NPARAM;
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SP->type = T_STRING;
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SP->_string.addr = str;
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SP->_string.start = 0;
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SP->_string.len = len_cat;
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SP++;
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}
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}
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void SUBR_file(ushort code)
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{
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int i;
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int length;
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char *addr;
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int len;
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char *str, *ptr;
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bool slash;
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SUBR_ENTER();
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length = 0;
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slash = FALSE;
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for (i = 0; i < NPARAM; i++)
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{
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/*VALUE_conv(&PARAM[i], T_STRING);*/
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SUBR_get_string_len(&PARAM[i], &addr, &len);
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if (len > 0)
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{
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if (length > 0)
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{
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if (!slash && addr[0] != '/')
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length++;
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else if (slash && addr[0] == '/')
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length--;
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}
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slash = addr[len - 1] == '/';
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length += len;
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}
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}
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str = STRING_new(NULL, length);
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ptr = str;
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slash = FALSE;
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i = NPARAM;
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while (i--)
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{
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VALUE_get_string(PARAM, &addr, &len);
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if (len > 0)
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{
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if (ptr > str)
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{
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if (!slash && *addr != '/')
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*ptr++ = '/';
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else if (slash && *addr == '/')
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ptr--;
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}
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slash = addr[len - 1] == '/';
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memcpy(ptr, addr, len);
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ptr += len;
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}
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RELEASE_STRING(PARAM);
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PARAM++;
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}
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SP -= NPARAM;
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SP->type = T_STRING;
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SP->_string.addr = str;
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SP->_string.start = 0;
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SP->_string.len = length;
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SP++;
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}
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void SUBR_space(void)
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{
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int len;
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SUBR_ENTER_PARAM(1);
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SUBR_check_integer(PARAM);
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len = PARAM->_integer.value;
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if (len < 0)
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THROW(E_ARG);
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if (len == 0)
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{
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STRING_void_value(RETURN);
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}
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else
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{
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STRING_new_temp_value(RETURN, NULL, len);
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memset(RETURN->_string.addr, ' ', len);
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}
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SUBR_LEAVE();
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}
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void SUBR_string(void)
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{
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int i;
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char *d;
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char *s;
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int ld, ls;
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SUBR_ENTER_PARAM(2);
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SUBR_check_integer(PARAM);
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SUBR_get_string_len(&PARAM[1], &s, &ls);
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ld = PARAM->_integer.value * ls;
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if (ld < 0)
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THROW(E_ARG);
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if (ld == 0)
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{
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STRING_void_value(RETURN);
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}
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else
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{
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STRING_new_temp_value(RETURN, NULL, ld);
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d = RETURN->_string.addr;
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for (i = 0; i < PARAM->_integer.value; i++)
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{
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memcpy(d, s, ls);
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d += ls;
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}
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*d = 0;
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}
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SUBR_LEAVE();
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}
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void SUBR_trim(ushort code)
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{
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unsigned char *str;
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bool left, right;
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SUBR_GET_PARAM(1);
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if (SUBR_check_string(PARAM))
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{
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VOID_STRING(PARAM);
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return;
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}
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code &= 0x1F;
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left = (code == 0 || code == 1);
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right = (code == 0 || code == 2);
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if (PARAM->_string.len > 0)
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{
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str = (uchar *)&PARAM->_string.addr[PARAM->_string.start];
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if (left)
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{
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while (PARAM->_string.len > 0 && *str <= ' ')
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{
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PARAM->_string.start++;
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PARAM->_string.len--;
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str++;
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}
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}
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if (right)
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{
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while (PARAM->_string.len > 0 && str[PARAM->_string.len - 1] <= ' ')
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{
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PARAM->_string.len--;
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}
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}
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}
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}
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void SUBR_upper(ushort code)
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{
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char *str;
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int len, i;
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SUBR_ENTER_PARAM(1);
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if (SUBR_check_string(PARAM))
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STRING_void_value(RETURN);
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else
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{
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len = PARAM->_string.len;
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if (len > 0)
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{
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str = STRING_new_temp(&PARAM->_string.addr[PARAM->_string.start], PARAM->_string.len);
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if (code & 0x3F)
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{
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for (i = 0; i < len; i++)
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str[i] = tolower(str[i]);
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}
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else
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{
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for (i = 0; i < len; i++)
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str[i] = toupper(str[i]);
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}
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RETURN->type = T_STRING;
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RETURN->_string.addr = str;
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RETURN->_string.start = 0;
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RETURN->_string.len = len;
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}
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}
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SUBR_LEAVE();
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}
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void SUBR_lower(void)
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{
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SUBR_upper(1);
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}
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void SUBR_chr(void)
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{
|
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int car;
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SUBR_GET_PARAM(1);
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VALUE_conv_integer(PARAM);
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car = PARAM->_integer.value;
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if (car < 0 || car > 255)
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THROW(E_ARG);
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STRING_char_value(PARAM, car);
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}
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void SUBR_asc(ushort code)
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{
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int pos = 0;
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SUBR_ENTER();
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if (!SUBR_check_string(PARAM))
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{
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pos = 1;
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if (NPARAM == 2)
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{
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SUBR_check_integer(&PARAM[1]);
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pos = PARAM[1]._integer.value;
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}
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if (pos < 1 || pos > PARAM->_string.len)
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pos = 0;
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else
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pos = (unsigned char)PARAM->_string.addr[PARAM->_string.start + pos - 1];
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}
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RETURN->type = T_INTEGER;
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RETURN->_integer.value = pos;
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SUBR_LEAVE();
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}
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void SUBR_instr(ushort code)
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{
|
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bool right, nocase = FALSE;
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int is, pos;
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char *ps, *pp;
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int ls, lp;
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SUBR_ENTER();
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/* Knuth Morris Pratt one day maybe ? */
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pos = 0;
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if (SUBR_check_string(PARAM))
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goto __FOUND;
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if (SUBR_check_string(&PARAM[1]))
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goto __FOUND;
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lp = PARAM[1]._string.len;
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ls = PARAM->_string.len;
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right = ((code >> 8) == CODE_RINSTR);
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|
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if (lp > ls) goto __FOUND;
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is = 0;
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|
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if (NPARAM >= 3)
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is = SUBR_get_integer(&PARAM[2]);
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|
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if (NPARAM == 4)
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nocase = SUBR_get_integer(&PARAM[3]) == GB_COMP_NOCASE;
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|
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ps = PARAM->_string.addr + PARAM->_string.start;
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pp = PARAM[1]._string.addr + PARAM[1]._string.start;
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pos = STRING_search(ps, ls, pp, lp, is, right, nocase);
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__FOUND:
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RELEASE_STRING(PARAM);
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RELEASE_STRING(&PARAM[1]);
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SP -= NPARAM;
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SP->type = T_INTEGER;
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SP->_integer.value = pos;
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SP++;
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}
|
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void SUBR_like(ushort code)
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{
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static const void *jump[] = { &&__LIKE, &&__BEGINS, &&__ENDS, &&__RETURN };
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char *pattern;
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char *string;
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int len_pattern, len_string;
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bool ret = FALSE;
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SUBR_ENTER_PARAM(2);
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SUBR_get_string_len(&PARAM[0], &string, &len_string);
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SUBR_get_string_len(&PARAM[1], &pattern, &len_pattern);
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goto *jump[code & 0x3];
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__LIKE:
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ret = REGEXP_match(pattern, len_pattern, string, len_string);
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goto __RETURN;
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__BEGINS:
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if (len_pattern == 0)
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ret = TRUE;
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else if (len_pattern <= len_string)
|
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ret = STRING_equal_same(string, pattern, len_pattern);
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goto __RETURN;
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__ENDS:
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if (len_pattern == 0)
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ret = TRUE;
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else if (len_pattern <= len_string)
|
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ret = STRING_equal_same(string + len_string - len_pattern, pattern, len_pattern);
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goto __RETURN;
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|
|
__RETURN:
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RETURN->type = T_BOOLEAN;
|
|
RETURN->_boolean.value = -(ret ^ !!(code & 0x4));
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|
|
SUBR_LEAVE();
|
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}
|
|
|
|
static int subst_nparam;
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static VALUE *subst_param;
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|
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static void get_subst(int np, char **str, int *len)
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{
|
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if (np > 0 && np < subst_nparam)
|
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VALUE_get_string(&subst_param[np], str, len);
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else
|
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{
|
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*str = NULL;
|
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*len = 0;
|
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}
|
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}
|
|
|
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void SUBR_subst(ushort code)
|
|
{
|
|
char *string;
|
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int len;
|
|
int np;
|
|
|
|
SUBR_ENTER();
|
|
|
|
SUBR_get_string_len(&PARAM[0], &string, &len);
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|
|
|
for (np = 1; np < NPARAM; np++)
|
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VALUE_conv_string(&PARAM[np]);
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|
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subst_param = PARAM;
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subst_nparam = NPARAM;
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|
|
|
string = STRING_subst(string, len, get_subst);
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|
|
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/*for (np = 0; np < NPARAM; np++)
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RELEASE_STRING(&PARAM[np]);*/
|
|
|
|
RETURN->type = T_STRING;
|
|
RETURN->_string.addr = (char *)string;
|
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RETURN->_string.start = 0;
|
|
RETURN->_string.len = STRING_length(string);
|
|
|
|
SUBR_LEAVE();
|
|
}
|
|
|
|
void SUBR_replace(ushort code)
|
|
{
|
|
char *ps;
|
|
char *pp;
|
|
char *pr;
|
|
int ls, lp, lr;
|
|
int pos;
|
|
bool nocase = FALSE;
|
|
|
|
SUBR_ENTER();
|
|
|
|
SUBR_get_string_len(&PARAM[0], &ps, &ls);
|
|
SUBR_get_string_len(&PARAM[1], &pp, &lp);
|
|
SUBR_get_string_len(&PARAM[2], &pr, &lr);
|
|
if (NPARAM == 4)
|
|
nocase = SUBR_get_integer(&PARAM[3]) == GB_COMP_NOCASE;
|
|
|
|
if (lp == 0)
|
|
{
|
|
RELEASE(&PARAM[1]);
|
|
RELEASE(&PARAM[2]);
|
|
SP -= NPARAM;
|
|
SP++;
|
|
return;
|
|
}
|
|
|
|
STRING_start_len(ls);
|
|
|
|
if (ls > 0 && lp > 0)
|
|
{
|
|
for(;;)
|
|
{
|
|
pos = STRING_search(ps, ls, pp, lp, 1, FALSE, nocase);
|
|
if (pos == 0)
|
|
break;
|
|
|
|
pos--;
|
|
|
|
if (pos > 0)
|
|
STRING_make(ps, pos);
|
|
|
|
STRING_make(pr, lr);
|
|
|
|
pos += lp;
|
|
|
|
ps += pos;
|
|
ls -= pos;
|
|
|
|
if (ls <= 0)
|
|
break;
|
|
}
|
|
|
|
STRING_make(ps, ls);
|
|
}
|
|
|
|
RETURN->type = T_STRING;
|
|
RETURN->_string.addr = STRING_end_temp();
|
|
RETURN->_string.start = 0;
|
|
RETURN->_string.len = STRING_length(RETURN->_string.addr);
|
|
|
|
SUBR_LEAVE();
|
|
}
|
|
|
|
void SUBR_split(ushort code)
|
|
{
|
|
CARRAY *array;
|
|
char *str;
|
|
int lstr;
|
|
char *sep = "";
|
|
char *esc = "";
|
|
bool no_void = FALSE;
|
|
bool keep_esc = FALSE;
|
|
|
|
SUBR_ENTER();
|
|
|
|
VALUE_conv_string(PARAM);
|
|
VALUE_get_string(PARAM, &str, &lstr);
|
|
|
|
//SUBR_get_string_len(&PARAM[0], &str, &lstr);
|
|
|
|
if (NPARAM >= 2)
|
|
{
|
|
sep = SUBR_get_string(&PARAM[1]);
|
|
if (NPARAM >= 3)
|
|
{
|
|
esc = SUBR_get_string(&PARAM[2]);
|
|
if (NPARAM >= 4)
|
|
{
|
|
no_void = SUBR_get_boolean(&PARAM[3]);
|
|
if (NPARAM == 5)
|
|
keep_esc = SUBR_get_boolean(&PARAM[4]);
|
|
}
|
|
}
|
|
}
|
|
|
|
array = OBJECT_create(CLASS_StringArray, NULL, NULL, 0);
|
|
|
|
if (lstr)
|
|
{
|
|
if (*sep) STRING_ref(sep);
|
|
if (*esc) STRING_ref(esc);
|
|
|
|
CARRAY_split(array, str, lstr, sep, esc, no_void, keep_esc);
|
|
|
|
if (*sep) STRING_unref(&sep);
|
|
if (*esc) STRING_unref(&esc);
|
|
}
|
|
|
|
RETURN->_object.class = CLASS_StringArray;
|
|
RETURN->_object.object = array;
|
|
|
|
SUBR_LEAVE();
|
|
}
|
|
|
|
void SUBR_scan(void)
|
|
{
|
|
CARRAY *array;
|
|
char *str;
|
|
int len_str;
|
|
char *pat;
|
|
int len_pat;
|
|
|
|
SUBR_ENTER_PARAM(2);
|
|
|
|
SUBR_get_string_len(&PARAM[0], &str, &len_str);
|
|
SUBR_get_string_len(&PARAM[1], &pat, &len_pat);
|
|
|
|
array = OBJECT_create(CLASS_StringArray, NULL, NULL, 0);
|
|
|
|
if (len_str && len_pat)
|
|
REGEXP_scan(array, pat, len_pat, str, len_str);
|
|
|
|
RETURN->_object.class = CLASS_StringArray;
|
|
RETURN->_object.object = array;
|
|
|
|
SUBR_LEAVE();
|
|
}
|
|
|
|
void SUBR_iconv(void)
|
|
{
|
|
char *str;
|
|
const char *src;
|
|
const char *dst;
|
|
char *result;
|
|
int len;
|
|
|
|
SUBR_ENTER_PARAM(3);
|
|
|
|
str = SUBR_get_string(&PARAM[0]);
|
|
len = PARAM[0]._string.len;
|
|
|
|
src = SUBR_get_string(&PARAM[1]);
|
|
dst = SUBR_get_string(&PARAM[2]);
|
|
|
|
STRING_conv(&result, str, len, src, dst, TRUE);
|
|
|
|
if (!result)
|
|
RETURN->type = T_NULL;
|
|
else
|
|
{
|
|
RETURN->type = T_STRING;
|
|
RETURN->_string.addr = result;
|
|
RETURN->_string.start = 0;
|
|
RETURN->_string.len = STRING_length(result);
|
|
}
|
|
|
|
SUBR_LEAVE();
|
|
}
|
|
|
|
void SUBR_sconv(ushort code)
|
|
{
|
|
char *str;
|
|
const char *src;
|
|
const char *dst;
|
|
char *result;
|
|
int len;
|
|
|
|
SUBR_ENTER_PARAM(1);
|
|
|
|
if (LOCAL_is_UTF8)
|
|
return;
|
|
|
|
str = SUBR_get_string(&PARAM[0]);
|
|
len = PARAM[0]._string.len;
|
|
|
|
if (code & 0xF)
|
|
{
|
|
src = LOCAL_encoding;
|
|
dst = SC_UTF8;
|
|
}
|
|
else
|
|
{
|
|
src = SC_UTF8;
|
|
dst = LOCAL_encoding;
|
|
}
|
|
|
|
STRING_conv(&result, str, len, src, dst, TRUE);
|
|
|
|
if (!result)
|
|
RETURN->type = T_NULL;
|
|
else
|
|
{
|
|
RETURN->type = T_STRING;
|
|
RETURN->_string.addr = result;
|
|
RETURN->_string.start = 0;
|
|
RETURN->_string.len = STRING_length(result);
|
|
}
|
|
|
|
SUBR_LEAVE();
|
|
}
|
|
|
|
static int _is_ascii(int c)
|
|
{
|
|
return (c & ~0x7F) == 0;
|
|
}
|
|
|
|
static int _is_letter(int c)
|
|
{
|
|
return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
|
|
}
|
|
|
|
static int _is_lower(int c)
|
|
{
|
|
return (c >= 'a' && c <= 'z');
|
|
}
|
|
|
|
static int _is_upper(int c)
|
|
{
|
|
return (c >= 'A' && c <= 'Z');
|
|
}
|
|
|
|
static int _is_digit(int c)
|
|
{
|
|
return (c >= '0' && c <= '9');
|
|
}
|
|
|
|
static int _is_hexa(int c)
|
|
{
|
|
return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
|
|
}
|
|
|
|
static int _is_space(int c)
|
|
{
|
|
return strchr(" \n\r\t\f\v", c) != NULL;
|
|
}
|
|
|
|
static int _is_blank(int c)
|
|
{
|
|
return (c == 32 || c == '\t');
|
|
}
|
|
|
|
static int _is_punct(int c)
|
|
{
|
|
return ((c > 32) && (c < 128) && !(_is_letter(c) || _is_digit(c)));
|
|
}
|
|
|
|
void SUBR_is_chr(ushort code)
|
|
{
|
|
static void *jump[] =
|
|
{
|
|
NULL, _is_ascii, _is_letter, _is_lower, _is_upper, _is_digit, _is_hexa, _is_space, _is_blank, _is_punct
|
|
};
|
|
|
|
char *addr;
|
|
int len;
|
|
int i;
|
|
int (*func)(int);
|
|
|
|
SUBR_ENTER_PARAM(1);
|
|
|
|
VALUE_conv_string(PARAM);
|
|
|
|
//SUBR_get_string_len(PARAM, &addr, &len);
|
|
VALUE_get_string(PARAM, &addr, &len);
|
|
|
|
func = jump[code & 0x3F];
|
|
|
|
i = len;
|
|
while(i)
|
|
{
|
|
if (!(*func)(*addr++))
|
|
break;
|
|
i--;
|
|
}
|
|
|
|
RELEASE_STRING(PARAM);
|
|
SP--;
|
|
SP->type = T_BOOLEAN;
|
|
SP->_boolean.value = (len > 0 && i == 0) ? -1 : 0;
|
|
SP++;
|
|
}
|
|
|
|
void SUBR_tr(void)
|
|
{
|
|
char *str;
|
|
|
|
SUBR_ENTER_PARAM(1);
|
|
|
|
VALUE_conv_string(&PARAM[0]);
|
|
|
|
if (SUBR_check_string(PARAM))
|
|
STRING_void_value(RETURN);
|
|
else
|
|
{
|
|
str = STRING_new_temp(&PARAM->_string.addr[PARAM->_string.start], PARAM->_string.len);
|
|
|
|
RETURN->type = T_CSTRING;
|
|
RETURN->_string.addr = (char *)LOCAL_gettext(str);
|
|
RETURN->_string.start = 0;
|
|
RETURN->_string.len = strlen(RETURN->_string.addr);
|
|
}
|
|
|
|
SUBR_LEAVE();
|
|
}
|
|
|
|
void SUBR_quote(ushort code)
|
|
{
|
|
static void *jump[4] = { &&__QUOTE, &&__SHELL, &&__HTML, &&__QUOTE };
|
|
char *str;
|
|
int lstr;
|
|
int i;
|
|
unsigned char c;
|
|
char buf[8];
|
|
|
|
SUBR_ENTER_PARAM(1);
|
|
|
|
VALUE_conv_string(&PARAM[0]);
|
|
|
|
str = PARAM->_string.addr + PARAM->_string.start;
|
|
lstr = PARAM->_string.len;
|
|
|
|
STRING_start_len(lstr);
|
|
|
|
goto *jump[code & 0x3];
|
|
|
|
__QUOTE:
|
|
|
|
STRING_make_char('"');
|
|
|
|
for (i = 0; i < lstr; i++)
|
|
{
|
|
c = str[i];
|
|
//if (c >= ' ' && c <= 126 && c != '\\' && c != '"')
|
|
if (c >= ' ' && c != '\\' && c != '"')
|
|
STRING_make_char(c);
|
|
else
|
|
{
|
|
STRING_make_char('\\');
|
|
if (c == '\n')
|
|
c = 'n';
|
|
else if (c == '\r')
|
|
c = 'r';
|
|
else if (c == '\t')
|
|
c = 't';
|
|
else if (!(c == '"' || c == '\\'))
|
|
{
|
|
snprintf(buf, sizeof(buf), "x%02X", c);
|
|
STRING_make(buf, 3);
|
|
continue;
|
|
}
|
|
STRING_make_char(c);
|
|
}
|
|
}
|
|
|
|
STRING_make_char('"');
|
|
goto __END;
|
|
|
|
__SHELL:
|
|
|
|
if (!LOCAL_is_UTF8)
|
|
{
|
|
char *conv;
|
|
STRING_conv(&conv, str, lstr, SC_UTF8, LOCAL_encoding, FALSE);
|
|
str = conv;
|
|
lstr = str ? strlen(str) : 0;
|
|
}
|
|
|
|
for (i = 0; i < lstr; i++)
|
|
{
|
|
c = str[i];
|
|
if (c == '\n')
|
|
STRING_make("$'\\n'", 5);
|
|
else if (c == '\r')
|
|
STRING_make("$'\\r'", 5);
|
|
else if (c == '\t')
|
|
STRING_make("$'\\t'", 5);
|
|
else if (c < ' ') //|| (c > 126 && !LOCAL_is_UTF8))
|
|
{
|
|
snprintf(buf, sizeof(buf), "$'\\x%02X'", c);
|
|
STRING_make(buf, 7);
|
|
}
|
|
else if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || index(".-/_~", c) || c > 126)
|
|
STRING_make_char(c);
|
|
else
|
|
{
|
|
STRING_make_char('\\');
|
|
STRING_make_char(c);
|
|
}
|
|
}
|
|
|
|
goto __END;
|
|
|
|
__HTML:
|
|
|
|
for (i = 0; i < lstr; i++)
|
|
{
|
|
c = str[i];
|
|
if (c == '&')
|
|
STRING_make("&", 5);
|
|
else if (c == '<')
|
|
STRING_make("<", 4);
|
|
else if (c == '>')
|
|
STRING_make(">", 4);
|
|
else if (c == '"')
|
|
STRING_make(""", 6);
|
|
else if (c == '\'')
|
|
STRING_make("'", 6);
|
|
else
|
|
STRING_make_char(c);
|
|
}
|
|
|
|
goto __END;
|
|
|
|
__END:
|
|
|
|
RETURN->type = T_STRING;
|
|
RETURN->_string.addr = STRING_end_temp();
|
|
RETURN->_string.start = 0;
|
|
RETURN->_string.len = STRING_length(RETURN->_string.addr);
|
|
|
|
SUBR_LEAVE();
|
|
}
|
|
|
|
static int read_hex_digit(unsigned char c)
|
|
{
|
|
if (c >= '0' && c <= '9')
|
|
return (c - '0');
|
|
else if (c >= 'A' && c <= 'F')
|
|
return (c - 'A' + 10);
|
|
else if (c >= 'a' && c <= 'f')
|
|
return (c - 'a' + 10);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
void SUBR_unquote(void)
|
|
{
|
|
char *str;
|
|
int lstr;
|
|
int i;
|
|
unsigned char c;
|
|
|
|
SUBR_ENTER_PARAM(1);
|
|
|
|
VALUE_conv_string(&PARAM[0]);
|
|
|
|
str = PARAM->_string.addr + PARAM->_string.start;
|
|
lstr = PARAM->_string.len;
|
|
|
|
STRING_start_len(lstr);
|
|
|
|
if (lstr >= 2 && str[0] == '"' && str[lstr - 1] == '"')
|
|
{
|
|
str++;
|
|
lstr -= 2;
|
|
}
|
|
|
|
for (i = 0; i < lstr; i++)
|
|
{
|
|
c = str[i];
|
|
if (c == '\\')
|
|
{
|
|
i++;
|
|
if (i >= lstr)
|
|
break;
|
|
c = str[i];
|
|
|
|
if (c == 'n')
|
|
c = '\n';
|
|
else if (c == 't')
|
|
c = '\t';
|
|
else if (c == 'r')
|
|
c = '\r';
|
|
else if (c == 'x')
|
|
{
|
|
if (i >= (lstr - 2))
|
|
break;
|
|
|
|
c = (read_hex_digit(str[i + 1]) << 4) + read_hex_digit(str[i + 2]);
|
|
i += 2;
|
|
}
|
|
}
|
|
|
|
STRING_make_char(c);
|
|
}
|
|
|
|
RETURN->type = T_STRING;
|
|
RETURN->_string.addr = STRING_end_temp();
|
|
RETURN->_string.start = 0;
|
|
RETURN->_string.len = STRING_length(RETURN->_string.addr);
|
|
|
|
SUBR_LEAVE();
|
|
}
|