mirror of
https://github.com/MidnightCommander/mc
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09de50d3a1
Found by Coverity. Coverity id #348334. Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
1025 lines
27 KiB
C
1025 lines
27 KiB
C
/*
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Common strings utilities
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Copyright (C) 2007-2022
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Free Software Foundation, Inc.
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Written by:
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Rostislav Benes, 2007
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This file is part of the Midnight Commander.
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The Midnight Commander is free software: you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the License,
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or (at your option) any later version.
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The Midnight Commander 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, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <langinfo.h>
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#include <string.h>
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#include <errno.h>
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#include "lib/global.h"
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#include "lib/util.h" /* MC_PTR_FREE */
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#include "lib/strutil.h"
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/*** global variables ****************************************************************************/
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GIConv str_cnv_to_term;
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GIConv str_cnv_from_term;
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GIConv str_cnv_not_convert = INVALID_CONV;
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/*** file scope macro definitions ****************************************************************/
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/*** file scope type declarations ****************************************************************/
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/*** file scope variables ************************************************************************/
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/* names, that are used for utf-8 */
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static const char *const str_utf8_encodings[] = {
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"utf-8",
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"utf8",
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NULL
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};
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/* standard 8bit encodings, no wide or multibytes characters */
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static const char *const str_8bit_encodings[] = {
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/* Solaris has different names of Windows 1251 encoding */
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#ifdef __sun
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"ansi-1251",
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"ansi1251",
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#else
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"cp-1251",
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"cp1251",
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#endif
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"cp-1250",
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"cp1250",
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"cp-866",
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"cp866",
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"ibm-866",
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"ibm866",
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"cp-850",
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"cp850",
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"cp-852",
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"cp852",
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"iso-8859",
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"iso8859",
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"koi8",
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NULL
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};
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/* terminal encoding */
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static char *codeset = NULL;
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static char *term_encoding = NULL;
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/* function for encoding specific operations */
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static struct str_class used_class;
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/* --------------------------------------------------------------------------------------------- */
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/*** file scope functions ************************************************************************/
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/* --------------------------------------------------------------------------------------------- */
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/* if enc is same encoding like on terminal */
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static int
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str_test_not_convert (const char *enc)
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{
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return g_ascii_strcasecmp (enc, codeset) == 0;
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}
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/* --------------------------------------------------------------------------------------------- */
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static estr_t
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_str_convert (GIConv coder, const char *string, int size, GString * buffer)
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{
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estr_t state = ESTR_SUCCESS;
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gssize left;
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gsize bytes_read = 0;
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gsize bytes_written = 0;
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errno = 0; /* FIXME: is it really needed? */
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if (coder == INVALID_CONV)
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return ESTR_FAILURE;
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if (string == NULL || buffer == NULL)
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return ESTR_FAILURE;
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/*
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if (! used_class.is_valid_string (string))
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{
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return ESTR_FAILURE;
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}
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*/
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if (size < 0)
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size = strlen (string);
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else
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{
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left = strlen (string);
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if (left < size)
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size = left;
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}
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left = size;
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g_iconv (coder, NULL, NULL, NULL, NULL);
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while (left != 0)
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{
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gchar *tmp_buff;
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GError *mcerror = NULL;
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tmp_buff = g_convert_with_iconv ((const gchar *) string,
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left, coder, &bytes_read, &bytes_written, &mcerror);
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if (mcerror != NULL)
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{
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int code = mcerror->code;
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g_error_free (mcerror);
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mcerror = NULL;
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switch (code)
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{
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case G_CONVERT_ERROR_NO_CONVERSION:
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/* Conversion between the requested character sets is not supported. */
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g_free (tmp_buff);
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tmp_buff = g_strnfill (strlen (string), '?');
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g_string_append (buffer, tmp_buff);
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g_free (tmp_buff);
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return ESTR_FAILURE;
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case G_CONVERT_ERROR_ILLEGAL_SEQUENCE:
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/* Invalid byte sequence in conversion input. */
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if ((tmp_buff == NULL) && (bytes_read != 0))
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/* recode valid byte sequence */
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tmp_buff = g_convert_with_iconv ((const gchar *) string,
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bytes_read, coder, NULL, NULL, NULL);
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if (tmp_buff != NULL)
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{
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g_string_append (buffer, tmp_buff);
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g_free (tmp_buff);
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}
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if ((int) bytes_read >= left)
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return ESTR_PROBLEM;
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string += bytes_read + 1;
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size -= (bytes_read + 1);
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left -= (bytes_read + 1);
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g_string_append_c (buffer, *(string - 1));
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state = ESTR_PROBLEM;
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break;
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case G_CONVERT_ERROR_PARTIAL_INPUT:
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/* Partial character sequence at end of input. */
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g_string_append (buffer, tmp_buff);
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g_free (tmp_buff);
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if ((int) bytes_read < left)
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{
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left = left - bytes_read;
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tmp_buff = g_strnfill (left, '?');
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g_string_append (buffer, tmp_buff);
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g_free (tmp_buff);
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}
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return ESTR_PROBLEM;
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case G_CONVERT_ERROR_BAD_URI: /* Don't know how handle this error :( */
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case G_CONVERT_ERROR_NOT_ABSOLUTE_PATH: /* Don't know how handle this error :( */
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case G_CONVERT_ERROR_FAILED: /* Conversion failed for some reason. */
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default:
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g_free (tmp_buff);
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return ESTR_FAILURE;
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}
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}
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else if (tmp_buff == NULL)
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{
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g_string_append (buffer, string);
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return ESTR_PROBLEM;
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}
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else if (*tmp_buff == '\0')
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{
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g_free (tmp_buff);
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g_string_append (buffer, string);
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return state;
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}
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else
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{
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g_string_append (buffer, tmp_buff);
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g_free (tmp_buff);
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string += bytes_read;
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left -= bytes_read;
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}
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}
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return state;
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}
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/* --------------------------------------------------------------------------------------------- */
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static int
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str_test_encoding_class (const char *encoding, const char *const *table)
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{
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int result = 0;
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if (encoding != NULL)
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{
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int t;
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for (t = 0; table[t] != NULL; t++)
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if (g_ascii_strncasecmp (encoding, table[t], strlen (table[t])) == 0)
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result++;
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}
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return result;
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}
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/* --------------------------------------------------------------------------------------------- */
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static void
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str_choose_str_functions (void)
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{
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if (str_test_encoding_class (codeset, str_utf8_encodings))
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used_class = str_utf8_init ();
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else if (str_test_encoding_class (codeset, str_8bit_encodings))
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used_class = str_8bit_init ();
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else
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used_class = str_ascii_init ();
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}
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/* --------------------------------------------------------------------------------------------- */
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/*** public functions ****************************************************************************/
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/* --------------------------------------------------------------------------------------------- */
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GIConv
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str_crt_conv_to (const char *to_enc)
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{
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return (!str_test_not_convert (to_enc)) ? g_iconv_open (to_enc, codeset) : str_cnv_not_convert;
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}
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/* --------------------------------------------------------------------------------------------- */
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GIConv
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str_crt_conv_from (const char *from_enc)
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{
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return (!str_test_not_convert (from_enc))
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? g_iconv_open (codeset, from_enc) : str_cnv_not_convert;
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_close_conv (GIConv conv)
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{
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if (conv != str_cnv_not_convert)
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g_iconv_close (conv);
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}
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/* --------------------------------------------------------------------------------------------- */
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estr_t
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str_convert (GIConv coder, const char *string, GString * buffer)
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{
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return _str_convert (coder, string, -1, buffer);
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}
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/* --------------------------------------------------------------------------------------------- */
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estr_t
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str_nconvert (GIConv coder, const char *string, int size, GString * buffer)
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{
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return _str_convert (coder, string, size, buffer);
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}
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/* --------------------------------------------------------------------------------------------- */
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gchar *
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str_conv_gerror_message (GError * mcerror, const char *def_msg)
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{
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return used_class.conv_gerror_message (mcerror, def_msg);
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}
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/* --------------------------------------------------------------------------------------------- */
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estr_t
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str_vfs_convert_from (GIConv coder, const char *string, GString * buffer)
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{
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estr_t result = ESTR_SUCCESS;
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if (coder == str_cnv_not_convert)
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g_string_append (buffer, string != NULL ? string : "");
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else
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result = _str_convert (coder, string, -1, buffer);
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return result;
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}
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/* --------------------------------------------------------------------------------------------- */
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estr_t
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str_vfs_convert_to (GIConv coder, const char *string, int size, GString * buffer)
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{
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return used_class.vfs_convert_to (coder, string, size, buffer);
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_printf (GString * buffer, const char *format, ...)
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{
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va_list ap;
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va_start (ap, format);
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g_string_append_vprintf (buffer, format, ap);
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va_end (ap);
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_insert_replace_char (GString * buffer)
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{
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used_class.insert_replace_char (buffer);
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}
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/* --------------------------------------------------------------------------------------------- */
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estr_t
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str_translate_char (GIConv conv, const char *keys, size_t ch_size, char *output, size_t out_size)
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{
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size_t left;
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size_t cnv;
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g_iconv (conv, NULL, NULL, NULL, NULL);
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left = (ch_size == (size_t) (-1)) ? strlen (keys) : ch_size;
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cnv = g_iconv (conv, (gchar **) & keys, &left, &output, &out_size);
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if (cnv == (size_t) (-1))
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return (errno == EINVAL) ? ESTR_PROBLEM : ESTR_FAILURE;
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output[0] = '\0';
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return ESTR_SUCCESS;
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}
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/* --------------------------------------------------------------------------------------------- */
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const char *
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str_detect_termencoding (void)
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{
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if (term_encoding == NULL)
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{
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/* On Linux, nl_langinfo (CODESET) returns upper case UTF-8 whether the LANG is set
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to utf-8 or UTF-8.
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On Mac OS X, it returns the same case as the LANG input.
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So let tranform result of nl_langinfo (CODESET) to upper case unconditionally. */
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term_encoding = g_ascii_strup (nl_langinfo (CODESET), -1);
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}
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return term_encoding;
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}
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/* --------------------------------------------------------------------------------------------- */
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gboolean
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str_isutf8 (const char *codeset_name)
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{
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return (str_test_encoding_class (codeset_name, str_utf8_encodings) != 0);
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_init_strings (const char *termenc)
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{
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codeset = termenc != NULL ? g_ascii_strup (termenc, -1) : g_strdup (str_detect_termencoding ());
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str_cnv_not_convert = g_iconv_open (codeset, codeset);
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if (str_cnv_not_convert == INVALID_CONV)
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{
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if (termenc != NULL)
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{
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g_free (codeset);
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codeset = g_strdup (str_detect_termencoding ());
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str_cnv_not_convert = g_iconv_open (codeset, codeset);
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}
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if (str_cnv_not_convert == INVALID_CONV)
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{
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g_free (codeset);
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codeset = g_strdup (DEFAULT_CHARSET);
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str_cnv_not_convert = g_iconv_open (codeset, codeset);
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}
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}
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str_cnv_to_term = str_cnv_not_convert;
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str_cnv_from_term = str_cnv_not_convert;
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str_choose_str_functions ();
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_uninit_strings (void)
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{
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if (str_cnv_not_convert != INVALID_CONV)
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g_iconv_close (str_cnv_not_convert);
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/* NULL-ize pointers to avoid double free in unit tests */
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MC_PTR_FREE (term_encoding);
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MC_PTR_FREE (codeset);
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}
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/* --------------------------------------------------------------------------------------------- */
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const char *
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str_term_form (const char *text)
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{
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return used_class.term_form (text);
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}
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/* --------------------------------------------------------------------------------------------- */
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const char *
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str_fit_to_term (const char *text, int width, align_crt_t just_mode)
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{
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return used_class.fit_to_term (text, width, just_mode);
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}
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/* --------------------------------------------------------------------------------------------- */
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const char *
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str_term_trim (const char *text, int width)
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{
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return used_class.term_trim (text, width);
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}
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/* --------------------------------------------------------------------------------------------- */
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const char *
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str_term_substring (const char *text, int start, int width)
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{
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return used_class.term_substring (text, start, width);
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}
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/* --------------------------------------------------------------------------------------------- */
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char *
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str_get_next_char (char *text)
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{
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used_class.cnext_char ((const char **) &text);
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return text;
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}
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/* --------------------------------------------------------------------------------------------- */
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const char *
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str_cget_next_char (const char *text)
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{
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used_class.cnext_char (&text);
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return text;
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_next_char (char **text)
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{
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used_class.cnext_char ((const char **) text);
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_cnext_char (const char **text)
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{
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used_class.cnext_char (text);
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}
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/* --------------------------------------------------------------------------------------------- */
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char *
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str_get_prev_char (char *text)
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{
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used_class.cprev_char ((const char **) &text);
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return text;
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}
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/* --------------------------------------------------------------------------------------------- */
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const char *
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str_cget_prev_char (const char *text)
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{
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used_class.cprev_char (&text);
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return text;
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_prev_char (char **text)
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{
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used_class.cprev_char ((const char **) text);
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_cprev_char (const char **text)
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{
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used_class.cprev_char (text);
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}
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/* --------------------------------------------------------------------------------------------- */
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char *
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str_get_next_char_safe (char *text)
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{
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used_class.cnext_char_safe ((const char **) &text);
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return text;
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}
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/* --------------------------------------------------------------------------------------------- */
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const char *
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str_cget_next_char_safe (const char *text)
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{
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used_class.cnext_char_safe (&text);
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return text;
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_next_char_safe (char **text)
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{
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used_class.cnext_char_safe ((const char **) text);
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}
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/* --------------------------------------------------------------------------------------------- */
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void
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str_cnext_char_safe (const char **text)
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{
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used_class.cnext_char_safe (text);
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}
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/* --------------------------------------------------------------------------------------------- */
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char *
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str_get_prev_char_safe (char *text)
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{
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used_class.cprev_char_safe ((const char **) &text);
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return text;
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}
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|
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/* --------------------------------------------------------------------------------------------- */
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const char *
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str_cget_prev_char_safe (const char *text)
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{
|
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used_class.cprev_char_safe (&text);
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return text;
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}
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|
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/* --------------------------------------------------------------------------------------------- */
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|
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void
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|
str_prev_char_safe (char **text)
|
|
{
|
|
used_class.cprev_char_safe ((const char **) text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
str_cprev_char_safe (const char **text)
|
|
{
|
|
used_class.cprev_char_safe (text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_next_noncomb_char (char **text)
|
|
{
|
|
return used_class.cnext_noncomb_char ((const char **) text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_cnext_noncomb_char (const char **text)
|
|
{
|
|
return used_class.cnext_noncomb_char (text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_prev_noncomb_char (char **text, const char *begin)
|
|
{
|
|
return used_class.cprev_noncomb_char ((const char **) text, begin);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_cprev_noncomb_char (const char **text, const char *begin)
|
|
{
|
|
return used_class.cprev_noncomb_char (text, begin);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_is_valid_char (const char *ch, size_t size)
|
|
{
|
|
return used_class.is_valid_char (ch, size);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_term_width1 (const char *text)
|
|
{
|
|
return used_class.term_width1 (text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_term_width2 (const char *text, size_t length)
|
|
{
|
|
return used_class.term_width2 (text, length);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_term_char_width (const char *text)
|
|
{
|
|
return used_class.term_char_width (text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_offset_to_pos (const char *text, size_t length)
|
|
{
|
|
return used_class.offset_to_pos (text, length);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_length (const char *text)
|
|
{
|
|
return used_class.length (text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_length_char (const char *text)
|
|
{
|
|
return str_cget_next_char_safe (text) - text;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_length2 (const char *text, int size)
|
|
{
|
|
return used_class.length2 (text, size);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_length_noncomb (const char *text)
|
|
{
|
|
return used_class.length_noncomb (text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_column_to_pos (const char *text, size_t pos)
|
|
{
|
|
return used_class.column_to_pos (text, pos);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
str_isspace (const char *ch)
|
|
{
|
|
return used_class.char_isspace (ch);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
str_ispunct (const char *ch)
|
|
{
|
|
return used_class.char_ispunct (ch);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
str_isalnum (const char *ch)
|
|
{
|
|
return used_class.char_isalnum (ch);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
str_isdigit (const char *ch)
|
|
{
|
|
return used_class.char_isdigit (ch);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
str_toupper (const char *ch, char **out, size_t * remain)
|
|
{
|
|
return used_class.char_toupper (ch, out, remain);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
str_tolower (const char *ch, char **out, size_t * remain)
|
|
{
|
|
return used_class.char_tolower (ch, out, remain);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
str_isprint (const char *ch)
|
|
{
|
|
return used_class.char_isprint (ch);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
str_iscombiningmark (const char *ch)
|
|
{
|
|
return used_class.char_iscombiningmark (ch);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
const char *
|
|
str_trunc (const char *text, int width)
|
|
{
|
|
return used_class.trunc (text, width);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
char *
|
|
str_create_search_needle (const char *needle, gboolean case_sen)
|
|
{
|
|
return used_class.create_search_needle (needle, case_sen);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
str_release_search_needle (char *needle, gboolean case_sen)
|
|
{
|
|
used_class.release_search_needle (needle, case_sen);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
const char *
|
|
str_search_first (const char *text, const char *search, gboolean case_sen)
|
|
{
|
|
return used_class.search_first (text, search, case_sen);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
const char *
|
|
str_search_last (const char *text, const char *search, gboolean case_sen)
|
|
{
|
|
return used_class.search_last (text, search, case_sen);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
gboolean
|
|
str_is_valid_string (const char *text)
|
|
{
|
|
return used_class.is_valid_string (text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_compare (const char *t1, const char *t2)
|
|
{
|
|
return used_class.compare (t1, t2);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_ncompare (const char *t1, const char *t2)
|
|
{
|
|
return used_class.ncompare (t1, t2);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_casecmp (const char *t1, const char *t2)
|
|
{
|
|
return used_class.casecmp (t1, t2);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_ncasecmp (const char *t1, const char *t2)
|
|
{
|
|
return used_class.ncasecmp (t1, t2);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_prefix (const char *text, const char *prefix)
|
|
{
|
|
return used_class.prefix (text, prefix);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_caseprefix (const char *text, const char *prefix)
|
|
{
|
|
return used_class.caseprefix (text, prefix);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
str_fix_string (char *text)
|
|
{
|
|
used_class.fix_string (text);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
char *
|
|
str_create_key (const char *text, gboolean case_sen)
|
|
{
|
|
return used_class.create_key (text, case_sen);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
char *
|
|
str_create_key_for_filename (const char *text, gboolean case_sen)
|
|
{
|
|
return used_class.create_key_for_filename (text, case_sen);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
int
|
|
str_key_collate (const char *t1, const char *t2, gboolean case_sen)
|
|
{
|
|
return used_class.key_collate (t1, t2, case_sen);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
str_release_key (char *key, gboolean case_sen)
|
|
{
|
|
used_class.release_key (key, case_sen);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
void
|
|
str_msg_term_size (const char *text, int *lines, int *columns)
|
|
{
|
|
char *p, *tmp;
|
|
char *q;
|
|
char c = '\0';
|
|
|
|
*lines = 1;
|
|
*columns = 0;
|
|
|
|
tmp = g_strdup (text);
|
|
p = tmp;
|
|
|
|
while (TRUE)
|
|
{
|
|
int width;
|
|
|
|
q = strchr (p, '\n');
|
|
if (q != NULL)
|
|
{
|
|
c = q[0];
|
|
q[0] = '\0';
|
|
}
|
|
|
|
width = str_term_width1 (p);
|
|
if (width > *columns)
|
|
*columns = width;
|
|
|
|
if (q == NULL)
|
|
break;
|
|
|
|
q[0] = c;
|
|
p = q + 1;
|
|
(*lines)++;
|
|
}
|
|
|
|
g_free (tmp);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
|
|
char *
|
|
strrstr_skip_count (const char *haystack, const char *needle, size_t skip_count)
|
|
{
|
|
char *semi;
|
|
ssize_t len;
|
|
|
|
len = strlen (haystack);
|
|
|
|
do
|
|
{
|
|
semi = g_strrstr_len (haystack, len, needle);
|
|
if (semi == NULL)
|
|
return NULL;
|
|
len = semi - haystack - 1;
|
|
}
|
|
while (skip_count-- != 0);
|
|
|
|
return semi;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|
|
/* Interprete string as a non-negative decimal integer, optionally multiplied by various values.
|
|
*
|
|
* @param str input value
|
|
* @param invalid set to TRUE if "str" does not represent a number in this format
|
|
*
|
|
* @return non-integer representation of "str", 0 in case of error.
|
|
*/
|
|
|
|
uintmax_t
|
|
parse_integer (const char *str, gboolean * invalid)
|
|
{
|
|
uintmax_t n;
|
|
char *suffix;
|
|
strtol_error_t e;
|
|
|
|
e = xstrtoumax (str, &suffix, 10, &n, "bcEGkKMPTwYZ0");
|
|
if (e == LONGINT_INVALID_SUFFIX_CHAR && *suffix == 'x')
|
|
{
|
|
uintmax_t multiplier;
|
|
|
|
multiplier = parse_integer (suffix + 1, invalid);
|
|
if (multiplier != 0 && n * multiplier / multiplier != n)
|
|
{
|
|
*invalid = TRUE;
|
|
return 0;
|
|
}
|
|
|
|
n *= multiplier;
|
|
}
|
|
else if (e != LONGINT_OK)
|
|
{
|
|
*invalid = TRUE;
|
|
n = 0;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------------------------- */
|