| | import re |
| |
|
| | re_attention = re.compile( |
| | r""" |
| | \\\(| |
| | \\\)| |
| | \\\[| |
| | \\]| |
| | \\\\| |
| | \\| |
| | \(| |
| | \[| |
| | :\s*([+-]?[.\d]+)\s*\)| |
| | \)| |
| | ]| |
| | [^\\()\[\]:]+| |
| | : |
| | """, |
| | re.X, |
| | ) |
| |
|
| | re_break = re.compile(r"\s*\bBREAK\b\s*", re.S) |
| |
|
| |
|
| | def parse_prompt_attention(text, emphasis): |
| | res = [] |
| | round_brackets = [] |
| | square_brackets = [] |
| |
|
| | round_bracket_multiplier = 1.1 |
| | square_bracket_multiplier = 1 / 1.1 |
| |
|
| | def multiply_range(start_position, multiplier): |
| | for p in range(start_position, len(res)): |
| | res[p][1] *= multiplier |
| |
|
| | if emphasis == "None": |
| | |
| | res = [[text, 1.0]] |
| | else: |
| | for m in re_attention.finditer(text): |
| | text = m.group(0) |
| | weight = m.group(1) |
| |
|
| | if text.startswith("\\"): |
| | res.append([text[1:], 1.0]) |
| | elif text == "(": |
| | round_brackets.append(len(res)) |
| | elif text == "[": |
| | square_brackets.append(len(res)) |
| | elif weight is not None and round_brackets: |
| | multiply_range(round_brackets.pop(), float(weight)) |
| | elif text == ")" and round_brackets: |
| | multiply_range(round_brackets.pop(), round_bracket_multiplier) |
| | elif text == "]" and square_brackets: |
| | multiply_range(square_brackets.pop(), square_bracket_multiplier) |
| | else: |
| | parts = re.split(re_break, text) |
| | for i, part in enumerate(parts): |
| | if i > 0: |
| | res.append(["BREAK", -1]) |
| | res.append([part, 1.0]) |
| |
|
| | for pos in round_brackets: |
| | multiply_range(pos, round_bracket_multiplier) |
| |
|
| | for pos in square_brackets: |
| | multiply_range(pos, square_bracket_multiplier) |
| |
|
| | if len(res) == 0: |
| | res = [["", 1.0]] |
| |
|
| | i = 0 |
| | while i + 1 < len(res): |
| | if res[i][1] == res[i + 1][1]: |
| | res[i][0] += res[i + 1][0] |
| | res.pop(i + 1) |
| | else: |
| | i += 1 |
| |
|
| | return res |
| |
|
