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#include <ctype.h>
#include "text-motions.h"
#include "text-objects.h"
static Filerange empty = {
.start = -1,
.end = -1,
};
Filerange text_object_word(Text *txt, size_t pos) {
char c, prev = '0', next = '0';
Filerange r;
Iterator it = text_iterator_get(txt, pos);
if (!text_iterator_byte_get(&it, &c))
return empty;
if (text_iterator_byte_prev(&it, &prev))
text_iterator_byte_next(&it, NULL);
text_iterator_byte_next(&it, &next);
if (isspace(c)) {
/* we are in the middle of two words */
r.start = text_char_next(txt, text_word_end_prev(txt, pos));
r.end = text_word_start_next(txt, pos);
} else if (isspace(prev) && isspace(next)) {
/* on a single character */
r.start = pos;
r.end = text_char_next(txt, pos);
} else if (isspace(prev)) {
/* at start of a word */
r.start = pos;
r.end = text_char_next(txt, text_word_end_next(txt, pos));
} else if (isspace(next)) {
/* at end of a word */
r.start = text_word_start_prev(txt, pos);
r.end = text_char_next(txt, pos);
} else {
/* in the middle of a word */
r.start = text_word_start_prev(txt, pos);
r.end = text_char_next(txt, text_word_end_next(txt, pos));
}
return r;
}
Filerange text_object_sentence(Text *txt, size_t pos) {
Filerange r;
r.start = text_sentence_prev(txt, pos);
r.end = text_sentence_next(txt, pos);
return r;
}
Filerange text_object_paragraph(Text *txt, size_t pos) {
Filerange r;
r.start = text_paragraph_prev(txt, pos);
r.end = text_paragraph_next(txt, pos);
return r;
}
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