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gmio_core/internal: add gmio_string_buffer_clear() and gmio_copy_spaces()

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This commit is contained in:
Hugues Delorme 2015-07-10 09:52:20 +02:00
parent 9ec37f9a88
commit 9fe35b1fc0
2 changed files with 33 additions and 5 deletions
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5
src/gmio_core/internal/string_parse.c
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@ -32,14 +32,13 @@ int gmio_eat_word(
{
const size_t buffer_capacity = buffer->max_len;
const char* stream_curr_char = NULL;
size_t i = 0;
size_t i = buffer->len;
/* assert(buffer != NULL && buffer->ptr != NULL); */
buffer->len = 0;
stream_curr_char = gmio_skip_spaces(it);
if (stream_curr_char == NULL) { /* Empty word */
buffer->ptr[0] = 0;
buffer->ptr[i] = 0;
return 0;
}

33
src/gmio_core/internal/string_parse.h
View File

@ -39,11 +39,13 @@ struct gmio_string_buffer
{
char* ptr; /*!< Buffer contents */
size_t len; /*!< Size(length) of current contents */
size_t max_len; /*!< Maximum contents size(length) */
size_t max_len; /*!< Maximum contents size(capacity) */
};
typedef struct gmio_string_buffer gmio_string_buffer_t;
GMIO_INLINE void gmio_string_buffer_clear(gmio_string_buffer_t* buffer);
/*! Forward iterator over a stream
*
* To be used with API below.
@ -76,10 +78,16 @@ GMIO_INLINE const char* gmio_current_char(
GMIO_INLINE const char *gmio_next_char(
gmio_string_stream_fwd_iterator_t *it);
/*! Advances iterator until the next non-space char */
/*! Advances iterator until the first non-space char */
GMIO_INLINE const char* gmio_skip_spaces(
gmio_string_stream_fwd_iterator_t* it);
/*! Advances iterator until the first non-space char and copies any space found
* in \p buffer */
GMIO_INLINE void gmio_copy_spaces(
gmio_string_stream_fwd_iterator_t* it,
gmio_string_buffer_t* buffer);
/*! Advances iterator so that next word is extracted into \p buffer
*
* \retval 0 On success
@ -108,6 +116,12 @@ GMIO_INLINE int gmio_get_float32(const char* str, gmio_float32_t* value_ptr);
* -- Implementation
*/
void gmio_string_buffer_clear(gmio_string_buffer_t* buffer)
{
buffer->ptr[0] = 0;
buffer->len = 0;
}
const char* gmio_current_char(
const gmio_string_stream_fwd_iterator_t* it)
{
@ -143,6 +157,21 @@ const char* gmio_skip_spaces(
return curr_char;
}
void gmio_copy_spaces(
gmio_string_stream_fwd_iterator_t* it,
gmio_string_buffer_t* buffer)
{
const char* curr_char = gmio_current_char(it);
while (curr_char != NULL
&& gmio_clocale_isspace(*curr_char)
&& buffer->len < buffer->max_len)
{
buffer->ptr[buffer->len] = *curr_char;
curr_char = gmio_next_char(it);
++buffer->len;
}
}
int gmio_get_float32(const char* str, gmio_float32_t* value_ptr)
{
#if defined(GMIO_STRINGPARSE_USE_FAST_ATOF)