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rich-text: Add iterator API

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This commit adds a small wrapper around ply_rich_text_get_characters
to make it easier to iterate over every character in a loop.
This commit is contained in:
Ray Strode 2023-12-02 12:22:35 -05:00
parent 9637be7d88
commit 8d9e3c0350
2 changed files with 46 additions and 0 deletions
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33
src/libply-splash-core/ply-rich-text.c
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@ -219,3 +219,36 @@ ply_rich_text_set_character (ply_rich_text_t *rich_text,
character->length = length;
character->style = style;
}
void
ply_rich_text_iterator_init (ply_rich_text_iterator_t *iterator,
ply_rich_text_t *rich_text,
ply_rich_text_span_t *span)
{
iterator->rich_text = rich_text;
iterator->span = *span;
iterator->current_offset = span->offset;
}
bool
ply_rich_text_iterator_next (ply_rich_text_iterator_t *iterator,
ply_rich_text_character_t **character)
{
ply_rich_text_t *rich_text = iterator->rich_text;
ply_rich_text_span_t *span = &iterator->span;
ply_rich_text_character_t **characters = ply_rich_text_get_characters (rich_text);
if (iterator->current_offset >= span->offset + span->range) {
return false;
}
if (characters[iterator->current_offset] == NULL) {
return false;
}
*character = characters[iterator->current_offset];
iterator->current_offset++;
return true;
}

13
src/libply-splash-core/ply-rich-text.h
View file

@ -52,6 +52,13 @@ typedef struct
ssize_t range;
} ply_rich_text_span_t;
typedef struct
{
ply_rich_text_t *rich_text;
ply_rich_text_span_t span;
ssize_t current_offset;
} ply_rich_text_iterator_t;
#ifndef PLY_HIDE_FUNCTION_DECLARATIONS
ply_rich_text_t *ply_rich_text_new (void);
void ply_rich_text_take_reference (ply_rich_text_t *rich_text);
@ -77,5 +84,11 @@ void ply_rich_text_free (ply_rich_text_t *rich_text);
ply_rich_text_character_t *ply_rich_text_character_new (void);
void ply_rich_text_character_free (ply_rich_text_character_t *character);
void ply_rich_text_iterator_init (ply_rich_text_iterator_t *iterator,
ply_rich_text_t *rich_text,
ply_rich_text_span_t *span);
bool ply_rich_text_iterator_next (ply_rich_text_iterator_t *iterator,
ply_rich_text_character_t **character);
#endif //PLY_HIDE_FUNCTION_DECLARATIONS
#endif //PLY_RICH_TEXT_H