ports/mc
ports/mc
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Код Релизы 2 Активность

Despite of the fact that algorithm now ignores the absence of closing curly

Просмотр исходного кода 
brace '}' (which probably isn't 100% correct), this should be checked in tests
for replace_handle_esc_seq function, not process_escape_sequence - it is the
replace_handle_esq_seq who decides whether it is an escape sequence or not.

Also, \x{4344} is usually a code for wide character (UTF-8), and not for "CD".
So we can either ignore the higher bits, or generate wide character codes...
The second would be convenient, but would also introduce a hard-coded UTF-8 charset.

Signed-off-by: Slava Zanko <slavazanko@gmail.com>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Этот коммит содержится в:
Vitaliy Filippov 2011-05-30 19:16:14 +03:00 коммит произвёл Slava Zanko
родитель 3ced63361b
Коммит fb7b01eeb9
4 изменённых файлов: 122 добавлений и 214 удалений
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1
lib/search.h
Просмотреть файл

@ -91,6 +91,7 @@ typedef struct mc_search_struct
off_t start_buffer; off_t start_buffer;
/* some data for regexp */ /* some data for regexp */
int num_results; int num_results;
gboolean is_utf8;
mc_search_matchinfo_t *regex_match_info; mc_search_matchinfo_t *regex_match_info;
GString *regex_buffer; GString *regex_buffer;
#ifdef SEARCH_TYPE_PCRE #ifdef SEARCH_TYPE_PCRE

94
lib/search/regex.c
Просмотреть файл

@ -384,40 +384,54 @@ mc_search_regex__get_token_by_num (const mc_search_t * lc_mc_search, gsize lc_in
static gboolean static gboolean
mc_search_regex__replace_handle_esc_seq (const GString * replace_str, const gsize current_pos, mc_search_regex__replace_handle_esc_seq (const GString * replace_str, const gsize current_pos,
gsize * skip_len, int *ret, char *next_char) gsize * skip_len, int *ret)
{ {
char *curr_str = &(replace_str->str[current_pos]); char *curr_str = &(replace_str->str[current_pos]);
char c = *(curr_str + 1);
*next_char = *(curr_str + 1);
if (replace_str->len > current_pos + 2) if (replace_str->len > current_pos + 2)
{ {
if (*next_char == '{') if (c == '{')
{ {
for (*skip_len = 2; /* \{ */ for (*skip_len = 2; /* \{ */
current_pos + *skip_len < replace_str->len current_pos + *skip_len < replace_str->len
&& (*(curr_str + *skip_len)) != '}'; (*skip_len)++); && *(curr_str + *skip_len) >= '0'
if (current_pos + *skip_len < replace_str->len) /* } */ && *(curr_str + *skip_len) <= '7'; (*skip_len)++);
if (current_pos + *skip_len < replace_str->len && *(curr_str + *skip_len) == '}')
{
(*skip_len)++; (*skip_len)++;
*ret = REPLACE_PREPARE_T_ESCAPE_SEQ; *ret = REPLACE_PREPARE_T_ESCAPE_SEQ;
return FALSE; return FALSE;
} }
else
{
*ret = REPLACE_PREPARE_T_NOTHING_SPECIAL;
return TRUE;
}
}
if (*next_char == 'x') if (c == 'x')
{ {
*skip_len = 2; /* \x */ *skip_len = 2; /* \x */
*next_char = *(curr_str + 2); c = *(curr_str + 2);
if (*next_char == '{') if (c == '{')
{ {
for (*skip_len = 3; /* \x{ */ for (*skip_len = 3; /* \x{ */
current_pos + *skip_len < replace_str->len current_pos + *skip_len < replace_str->len
&& (*(curr_str + *skip_len)) != '}'; (*skip_len)++); && g_ascii_isxdigit ((guchar) * (curr_str + *skip_len)); (*skip_len)++);
if (current_pos + *skip_len < replace_str->len) if (current_pos + *skip_len < replace_str->len && *(curr_str + *skip_len) == '}')
{
(*skip_len)++; (*skip_len)++;
*ret = REPLACE_PREPARE_T_ESCAPE_SEQ; *ret = REPLACE_PREPARE_T_ESCAPE_SEQ;
return FALSE; return FALSE;
} }
else if (!g_ascii_isxdigit ((guchar) * next_char)) else
{
*ret = REPLACE_PREPARE_T_NOTHING_SPECIAL;
return TRUE;
}
}
else if (!g_ascii_isxdigit ((guchar) c))
{ {
*skip_len = 2; /* \x without number behind */ *skip_len = 2; /* \x without number behind */
*ret = REPLACE_PREPARE_T_NOTHING_SPECIAL; *ret = REPLACE_PREPARE_T_NOTHING_SPECIAL;
@ -425,8 +439,8 @@ mc_search_regex__replace_handle_esc_seq (const GString * replace_str, const gsiz
} }
else else
{ {
*next_char = *(curr_str + 3); c = *(curr_str + 3);
if (!g_ascii_isxdigit ((guchar) * next_char)) if (!g_ascii_isxdigit ((guchar) c))
*skip_len = 3; /* \xH */ *skip_len = 3; /* \xH */
else else
*skip_len = 4; /* \xHH */ *skip_len = 4; /* \xHH */
@ -436,7 +450,7 @@ mc_search_regex__replace_handle_esc_seq (const GString * replace_str, const gsiz
} }
} }
if (strchr ("ntvbrfa", *next_char) != NULL) if (strchr ("ntvbrfa", c) != NULL)
{ {
*skip_len = 2; *skip_len = 2;
*ret = REPLACE_PREPARE_T_ESCAPE_SEQ; *ret = REPLACE_PREPARE_T_ESCAPE_SEQ;
@ -489,8 +503,6 @@ mc_search_regex__process_replace_str (const GString * replace_str, const gsize c
if ((*curr_str == '\\') && (replace_str->len > current_pos + 1)) if ((*curr_str == '\\') && (replace_str->len > current_pos + 1))
{ {
char next_char;
if (strutils_is_char_escaped (replace_str->str, curr_str)) if (strutils_is_char_escaped (replace_str->str, curr_str))
{ {
*skip_len = 1; *skip_len = 1;
@ -504,13 +516,12 @@ mc_search_regex__process_replace_str (const GString * replace_str, const gsize c
return ret; return ret;
} }
if (!mc_search_regex__replace_handle_esc_seq if (!mc_search_regex__replace_handle_esc_seq (replace_str, current_pos, skip_len, &ret))
(replace_str, current_pos, skip_len, &ret, &next_char))
return ret; return ret;
ret = REPLACE_PREPARE_T_REPLACE_FLAG; ret = REPLACE_PREPARE_T_REPLACE_FLAG;
*skip_len += 2; *skip_len += 2;
switch (next_char) switch (*(curr_str + 1))
{ {
case 'U': case 'U':
*replace_flags |= REPLACE_T_UPP_TRANSFORM; *replace_flags |= REPLACE_T_UPP_TRANSFORM;
@ -604,10 +615,12 @@ mc_search_regex__process_append_str (GString * dest_str, const char *from, gsize
static void static void
mc_search_regex__process_escape_sequence (GString * dest_str, const char *from, gsize len, mc_search_regex__process_escape_sequence (GString * dest_str, const char *from, gsize len,
replace_transform_type_t * replace_flags) replace_transform_type_t * replace_flags,
gboolean is_utf8)
{ {
gsize i = 0; gsize i = 0;
char c = 0; unsigned int c = 0;
char b;
if (len == (gsize) (-1)) if (len == (gsize) (-1))
len = strlen (from); len = strlen (from);
@ -617,6 +630,7 @@ mc_search_regex__process_escape_sequence (GString * dest_str, const char *from,
i++; i++;
if (i >= len) if (i >= len)
return; return;
if (from[i] == 'x') if (from[i] == 'x')
{ {
i++; i++;
@ -634,7 +648,7 @@ mc_search_regex__process_escape_sequence (GString * dest_str, const char *from,
break; break;
} }
} }
else if (from[i] >= '0' && from[i] <= '9') else if (from[i] >= '0' && from[i] <= '7')
for (; i < len && from[i] >= '0' && from[i] <= '7'; i++) for (; i < len && from[i] >= '0' && from[i] <= '7'; i++)
c = c * 8 + from[i] - '0'; c = c * 8 + from[i] - '0';
else else
@ -667,7 +681,36 @@ mc_search_regex__process_escape_sequence (GString * dest_str, const char *from,
return; return;
} }
} }
g_string_append_len (dest_str, &c, 1);
if (c < 0x80 || !is_utf8)
g_string_append_c (dest_str, (char) c);
else if (c < 0x800)
{
b = 0xC0 | (c >> 6);
g_string_append_c (dest_str, b);
b = 0x80 | (c & 0x3F);
g_string_append_c (dest_str, b);
}
else if (c < 0x10000)
{
b = 0xE0 | (c >> 12);
g_string_append_c (dest_str, b);
b = 0x80 | ((c >> 6) & 0x3F);
g_string_append_c (dest_str, b);
b = 0x80 | (c & 0x3F);
g_string_append_c (dest_str, b);
}
else if (c < 0x10FFFF)
{
b = 0xF0 | (c >> 16);
g_string_append_c (dest_str, b);
b = 0x80 | ((c >> 12) & 0x3F);
g_string_append_c (dest_str, b);
b = 0x80 | ((c >> 6) & 0x3F);
g_string_append_c (dest_str, b);
b = 0x80 | (c & 0x3F);
g_string_append_c (dest_str, b);
}
} }
/* --------------------------------------------------------------------------------------------- */ /* --------------------------------------------------------------------------------------------- */
@ -744,6 +787,7 @@ mc_search__cond_struct_new_init_regex (const char *charset, mc_search_t * lc_mc_
} }
} }
#endif /* SEARCH_TYPE_GLIB */ #endif /* SEARCH_TYPE_GLIB */
lc_mc_search->is_utf8 = str_isutf8 (charset);
} }
/* --------------------------------------------------------------------------------------------- */ /* --------------------------------------------------------------------------------------------- */
@ -914,7 +958,7 @@ mc_search_regex_prepare_replace_str (mc_search_t * lc_mc_search, GString * repla
&replace_flags); &replace_flags);
/* call process_escape_sequence without starting '\\' */ /* call process_escape_sequence without starting '\\' */
mc_search_regex__process_escape_sequence (ret, replace_str->str + loop + 1, len - 1, mc_search_regex__process_escape_sequence (ret, replace_str->str + loop + 1, len - 1,
&replace_flags); &replace_flags, lc_mc_search->is_utf8);
prev_str = replace_str->str + loop + len; prev_str = replace_str->str + loop + len;
loop += len - 1; loop += len - 1;
continue; continue;

45
lib/tests/search/regex_process_escape_sequence.c
Просмотреть файл

@ -27,9 +27,9 @@
#include "regex.c" /* for testing static functions*/ #include "regex.c" /* for testing static functions*/
/* --------------------------------------------------------------------------------------------- */ /* --------------------------------------------------------------------------------------------- */
#define test_helper_valid_data(from, etalon, dest_str, replace_flags) { \ #define test_helper_valid_data(from, etalon, dest_str, replace_flags, utf) { \
dest_str = g_string_new(""); \ dest_str = g_string_new(""); \
mc_search_regex__process_escape_sequence (dest_str, from, -1, &replace_flags); \ mc_search_regex__process_escape_sequence (dest_str, from, -1, &replace_flags, utf); \
fail_if (strcmp(dest_str->str, etalon), "dest_str(%s) != %s", dest_str->str, etalon); \ fail_if (strcmp(dest_str->str, etalon), "dest_str(%s) != %s", dest_str->str, etalon); \
g_string_free(dest_str, TRUE); \ g_string_free(dest_str, TRUE); \
} }
@ -41,36 +41,18 @@ START_TEST (test_regex_process_escape_sequence_valid)
GString *dest_str; GString *dest_str;
replace_transform_type_t replace_flags = REPLACE_T_NO_TRANSFORM; replace_transform_type_t replace_flags = REPLACE_T_NO_TRANSFORM;
test_helper_valid_data("{101}", "A", dest_str, replace_flags); test_helper_valid_data("{101}", "A", dest_str, replace_flags, FALSE);
test_helper_valid_data("x42", "B", dest_str, replace_flags); test_helper_valid_data("x42", "B", dest_str, replace_flags, FALSE);
test_helper_valid_data("x{4344}", "CD", dest_str, replace_flags); test_helper_valid_data("x{444}", "D", dest_str, replace_flags, FALSE);
test_helper_valid_data("x{444}", "ф", dest_str, replace_flags, TRUE);
test_helper_valid_data("n", "\n", dest_str, replace_flags); test_helper_valid_data("n", "\n", dest_str, replace_flags, FALSE);
test_helper_valid_data("t", "\t", dest_str, replace_flags); test_helper_valid_data("t", "\t", dest_str, replace_flags, FALSE);
test_helper_valid_data("v", "\v", dest_str, replace_flags); test_helper_valid_data("v", "\v", dest_str, replace_flags, FALSE);
test_helper_valid_data("b", "\b", dest_str, replace_flags); test_helper_valid_data("b", "\b", dest_str, replace_flags, FALSE);
test_helper_valid_data("r", "\r", dest_str, replace_flags); test_helper_valid_data("r", "\r", dest_str, replace_flags, FALSE);
test_helper_valid_data("f", "\f", dest_str, replace_flags); test_helper_valid_data("f", "\f", dest_str, replace_flags, FALSE);
test_helper_valid_data("a", "\a", dest_str, replace_flags); test_helper_valid_data("a", "\a", dest_str, replace_flags, FALSE);
}
END_TEST
/* --------------------------------------------------------------------------------------------- */
START_TEST (test_regex_process_escape_sequence_invalid)
{
GString *dest_str;
replace_transform_type_t replace_flags = REPLACE_T_NO_TRANSFORM;
test_helper_valid_data("{101", "{101", dest_str, replace_flags);
test_helper_valid_data("101}", "101}", dest_str, replace_flags);
test_helper_valid_data("{ab}", "{ab}", dest_str, replace_flags);
test_helper_valid_data("xqw", "xqw", dest_str, replace_flags);
test_helper_valid_data("x{41", "x{41", dest_str, replace_flags);
test_helper_valid_data("x{qwer}", "x{qwer}", dest_str, replace_flags);
test_helper_valid_data("s", "s", dest_str, replace_flags);
test_helper_valid_data("Q", "Q", dest_str, replace_flags);
test_helper_valid_data("1", "1", dest_str, replace_flags);
} }
END_TEST END_TEST
@ -87,7 +69,6 @@ main (void)
/* Add new tests here: *************** */ /* Add new tests here: *************** */
tcase_add_test (tc_core, test_regex_process_escape_sequence_valid); tcase_add_test (tc_core, test_regex_process_escape_sequence_valid);
tcase_add_test (tc_core, test_regex_process_escape_sequence_invalid);
/* *********************************** */ /* *********************************** */
suite_add_tcase (s, tc_core); suite_add_tcase (s, tc_core);

174
lib/tests/search/regex_replace_esc_seq.c
Просмотреть файл

@ -27,13 +27,22 @@
#include "regex.c" /* for testing static functions*/ #include "regex.c" /* for testing static functions*/
/* --------------------------------------------------------------------------------------------- */ /* --------------------------------------------------------------------------------------------- */
#define test_helper_check_valid_data( a, b, c, d, e, f, g, h ) \ #define test_helper_check_valid_data( a, b, c, d, e, f ) \
{ \ { \
fail_unless( a == b, "ret_value != %s", (b) ? "TRUE": "FALSE" ); \ fail_unless( a == b, "ret_value != %s", (b) ? "TRUE": "FALSE" ); \
fail_unless( c == d, "skip_len(%d) != %d", c, d ); \ fail_unless( c == d, "skip_len(%d) != %d", c, d ); \
if (f!=0) fail_unless( e == f, "ret(%d) != %d", e, f ); \ if (f!=0) fail_unless( e == f, "ret(%d) != %d", e, f ); \
fail_unless( g == h, "next_char('%c':%d) != %d", g, g, h ); \ }
} \
#define test_helper_handle_esc_seq( pos, r, skip, flag ) \
{ \
skip_len = 0;\
test_helper_check_valid_data(\
mc_search_regex__replace_handle_esc_seq( replace_str, pos, &skip_len, &ret ), r,\
skip_len, skip,\
ret, flag\
); \
}
/* --------------------------------------------------------------------------------------------- */ /* --------------------------------------------------------------------------------------------- */
@ -42,108 +51,20 @@ START_TEST (test_regex_replace_esc_seq_prepare_valid)
GString *replace_str; GString *replace_str;
gsize skip_len; gsize skip_len;
int ret; int ret;
char next_char;
replace_str = g_string_new("bla-bla\\{123}bla-bla\\xabc234 bla-bla\\x{456abcd}bla-bla\\xtre\\n\\t\\v\\b\\r\\f\\a"); replace_str = g_string_new("bla-bla\\{123}bla-bla\\xabc234 bla-bla\\x{456abcd}bla-bla\\xtre\\n\\t\\v\\b\\r\\f\\a");
/* \\{123} */ test_helper_handle_esc_seq( 7, FALSE, 6, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\{123} */
skip_len=0; test_helper_handle_esc_seq( 20, FALSE, 4, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\xab */
test_helper_check_valid_data( test_helper_handle_esc_seq( 36, FALSE, 11, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\x{456abcd} */
mc_search_regex__replace_handle_esc_seq ( replace_str, 7, &skip_len, &ret, &next_char ), FALSE, test_helper_handle_esc_seq( 54, FALSE, 2, REPLACE_PREPARE_T_NOTHING_SPECIAL ); /* \\xtre */
skip_len, 6, test_helper_handle_esc_seq( 59, FALSE, 2, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\n */
ret, REPLACE_PREPARE_T_ESCAPE_SEQ, test_helper_handle_esc_seq( 61, FALSE, 2, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\t */
next_char, '{' test_helper_handle_esc_seq( 63, FALSE, 2, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\v */
); test_helper_handle_esc_seq( 65, FALSE, 2, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\b */
test_helper_handle_esc_seq( 67, FALSE, 2, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\r */
/* \\xab */ test_helper_handle_esc_seq( 69, FALSE, 2, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\f */
skip_len=0; test_helper_handle_esc_seq( 71, FALSE, 2, REPLACE_PREPARE_T_ESCAPE_SEQ ); /* \\a */
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 20, &skip_len, &ret, &next_char ), FALSE,
skip_len, 4,
ret, REPLACE_PREPARE_T_ESCAPE_SEQ,
next_char, 'b'
);
/* \\x{456abcd} */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 36, &skip_len, &ret, &next_char ), FALSE,
skip_len, 11,
ret, REPLACE_PREPARE_T_ESCAPE_SEQ,
next_char, '{'
);
/* \\xtre */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 54, &skip_len, &ret, &next_char ), FALSE,
skip_len, 2,
ret, REPLACE_PREPARE_T_NOTHING_SPECIAL,
next_char, 't'
);
/* \\n */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 59, &skip_len, &ret, &next_char ), FALSE,
skip_len, 2,
ret, REPLACE_PREPARE_T_ESCAPE_SEQ,
next_char, 'n'
);
/* \\t */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 61, &skip_len, &ret, &next_char ), FALSE,
skip_len, 2,
ret, REPLACE_PREPARE_T_ESCAPE_SEQ,
next_char, 't'
);
/* \\v */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 63, &skip_len, &ret, &next_char ), FALSE,
skip_len, 2,
ret, REPLACE_PREPARE_T_ESCAPE_SEQ,
next_char, 'v'
);
/* \\b */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 65, &skip_len, &ret, &next_char ), FALSE,
skip_len, 2,
ret, REPLACE_PREPARE_T_ESCAPE_SEQ,
next_char, 'b'
);
/* \\r */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 67, &skip_len, &ret, &next_char ), FALSE,
skip_len, 2,
ret, REPLACE_PREPARE_T_ESCAPE_SEQ,
next_char, 'r'
);
/* \\f */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 69, &skip_len, &ret, &next_char ), FALSE,
skip_len, 2,
ret, REPLACE_PREPARE_T_ESCAPE_SEQ,
next_char, 'f'
);
/* \\a */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 71, &skip_len, &ret, &next_char ), FALSE,
skip_len, 2,
ret, REPLACE_PREPARE_T_ESCAPE_SEQ,
next_char, 'a'
);
g_string_free(replace_str, TRUE); g_string_free(replace_str, TRUE);
} }
@ -157,53 +78,14 @@ START_TEST (test_regex_replace_esc_seq_prepare_invalid)
GString *replace_str; GString *replace_str;
gsize skip_len; gsize skip_len;
int ret; int ret;
char next_char;
replace_str = g_string_new("\\{123 \\x{qwerty} \\12} \\x{456a-bcd}bla-bla\\satre"); replace_str = g_string_new("\\{123 \\x{qwerty} \\12} \\x{456a-bcd}bla-bla\\satre");
/* \\{123 */ test_helper_handle_esc_seq( 0, TRUE, 5, REPLACE_PREPARE_T_NOTHING_SPECIAL ); /* \\{123 */
skip_len=0; test_helper_handle_esc_seq( 6, TRUE, 3, REPLACE_PREPARE_T_NOTHING_SPECIAL ); /* \\x{qwerty} */
test_helper_check_valid_data( test_helper_handle_esc_seq( 17, TRUE, 0, REPLACE_PREPARE_T_NOTHING_SPECIAL ); /* \\12} */
mc_search_regex__replace_handle_esc_seq ( replace_str, 0, &skip_len, &ret, &next_char ), TRUE, test_helper_handle_esc_seq( 22, TRUE, 7, REPLACE_PREPARE_T_NOTHING_SPECIAL ); /* \\x{456a-bcd} */
skip_len, 0, test_helper_handle_esc_seq( 41, TRUE, 0, REPLACE_PREPARE_T_NOTHING_SPECIAL ); /* \\satre */
0, 0,
next_char, '{'
);
/* \\x{qwerty} */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 6, &skip_len, &ret, &next_char ), TRUE,
skip_len, 0,
0, 0,
next_char, 'x'
);
/* \\12} */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 17, &skip_len, &ret, &next_char ), TRUE,
skip_len, 0,
0, 0,
next_char, '1'
);
/* \\x{456a-bcd} */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 22, &skip_len, &ret, &next_char ), TRUE,
skip_len, 0,
0, 0,
next_char, 'x'
);
/* \\satre */
skip_len=0;
test_helper_check_valid_data(
mc_search_regex__replace_handle_esc_seq ( replace_str, 41, &skip_len, &ret, &next_char ), TRUE,
skip_len, 0,
0, 0,
next_char, 's'
);
g_string_free(replace_str, TRUE); g_string_free(replace_str, TRUE);
} }