last-grapheme-from ( end str -- i ) (original) (raw)
last-grapheme-from ( end str -- i )
Word and grapheme breaks
| Prev: | last-grapheme ( str -- i ) |
|---|---|
| Next: | >graphemes ( str -- graphemes ) |
Vocabulary
unicode
Inputs
| end | an index |
|---|---|
| str | a string |
Outputs
| i | an index |
|---|
Word description
Finds the index of the start of the last grapheme of the string, starting from the given index. This can be used to traverse the graphemes of a string backwards.
Definition
: last-grapheme-from ( end str -- i )
swap head-slice last-grapheme ;