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add utf8-len function

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B. Petersen 2019-04-16 18:27:48 +02:00
parent 01a20fbf21
commit 77a714a1d3
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GPG key ID: 3B88E92DEA8E9AFC
3 changed files with 13 additions and 3 deletions
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3
cmdline/stress.c
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@ -619,6 +619,9 @@ void stress_functions(dc_context_t* context)
assert( !DC_EVENT_RETURNS_STRING(100) ); assert( !DC_EVENT_RETURNS_STRING(100) );
assert( !DC_EVENT_RETURNS_STRING(300) ); assert( !DC_EVENT_RETURNS_STRING(300) );
assert( !DC_EVENT_RETURNS_STRING(400) ); assert( !DC_EVENT_RETURNS_STRING(400) );
assert( dc_utf8_strlen("c")==1 && strlen("c")==1 );
assert( dc_utf8_strlen("ä")==1 && strlen("ä")==2 );
} }
/* test dc_array_t /* test dc_array_t

12
src/dc_tools.c
View file

@ -420,9 +420,12 @@ error:
} }
#if 0 /* not needed at the moment */ size_t dc_utf8_strlen(const char* s)
static size_t dc_utf8_strlen(const char* s)
{ {
if (s==NULL) {
return 0;
}
size_t i = 0; size_t i = 0;
size_t j = 0; size_t j = 0;
while (s[i]) { while (s[i]) {
@ -432,11 +435,14 @@ static size_t dc_utf8_strlen(const char* s)
} }
return j; return j;
} }
#endif
static size_t dc_utf8_strnlen(const char* s, size_t n) static size_t dc_utf8_strnlen(const char* s, size_t n)
{ {
if (s==NULL) {
return 0;
}
size_t i = 0; size_t i = 0;
size_t j = 0; size_t j = 0;
while (i < n) { while (i < n) {

1
src/dc_tools.h
View file

@ -41,6 +41,7 @@ char* dc_binary_to_uc_hex (const uint8_t* buf, size_t bytes);
void dc_remove_cr_chars (char*); /* remove all \r characters from string */ void dc_remove_cr_chars (char*); /* remove all \r characters from string */
void dc_unify_lineends (char*); void dc_unify_lineends (char*);
void dc_replace_bad_utf8_chars (char*); /* replace bad UTF-8 characters by sequences of `_` (to avoid problems in filenames, we do not use eg. `?`) the function is useful if strings are unexpectingly encoded eg. as ISO-8859-1 */ void dc_replace_bad_utf8_chars (char*); /* replace bad UTF-8 characters by sequences of `_` (to avoid problems in filenames, we do not use eg. `?`) the function is useful if strings are unexpectingly encoded eg. as ISO-8859-1 */
size_t dc_utf8_strlen (const char*);
void dc_truncate_str (char*, int approx_characters); void dc_truncate_str (char*, int approx_characters);
void dc_truncate_n_unwrap_str (char*, int approx_characters, int do_unwrap); void dc_truncate_n_unwrap_str (char*, int approx_characters, int do_unwrap);
carray* dc_split_into_lines (const char* buf_terminated); /* split string into lines*/ carray* dc_split_into_lines (const char* buf_terminated); /* split string into lines*/