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| """ | |
| Min Word Lenth | |
| -------------------------- | |
| """ | |
| from textattack.constraints import PreTransformationConstraint | |
| class MinWordLength(PreTransformationConstraint): | |
| """A constraint that prevents modifications to words less than a certain | |
| word character-length. | |
| :param min_length: Minimum word character-length needed for changes to be made to a word. | |
| """ | |
| def __init__(self, min_length): | |
| self.min_length = min_length | |
| def _get_modifiable_indices(self, current_text): | |
| idxs = [] | |
| for i, word in enumerate(current_text.words): | |
| if len(word) >= self.min_length: | |
| idxs.append(i) | |
| return set(idxs) | |