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#!/usr/bin/env python3 |
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# Copyright 2014-2020 by Christopher C. Little. |
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# This file is part of Abydos. |
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# |
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# Abydos is free software: you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# Abydos is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with Abydos. If not, see <http://www.gnu.org/licenses/>. |
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"""bm_php2py.py. |
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This helper script converts Beider-Morse Phonetic Matching Algorithm (BMPM) |
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code from PHP to Python. |
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It assumes that the BMPM code is located at ../../bmpm (relative to this |
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directory in the abydos repository). |
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It reads the BMPM reference implementation and generates the file |
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../abydos/_beider_morse_data.py. |
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The file _beider_morse.py may still need manual changes to be made after this |
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script is run. |
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""" |
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import codecs |
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import re |
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import sys |
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from os import listdir |
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from os.path import isfile |
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# noinspection PyPackageRequirements |
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import chardet |
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# The list of languages from BMPM to support (might need to be updated or |
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# tuned as BMPM is updated) |
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lang_tuple = ( |
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'any', |
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'arabic', |
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'cyrillic', |
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'czech', |
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'dutch', |
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'english', |
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'french', |
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'german', |
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'greek', |
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'greeklatin', |
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'hebrew', |
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'hungarian', |
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'italian', |
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'latvian', |
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'polish', |
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'portuguese', |
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'romanian', |
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'russian', |
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'spanish', |
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'turkish', |
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) |
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lang_dict = {} |
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for i, l in enumerate(lang_tuple): |
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lang_dict[l] = 2 ** i |
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lang_dict['common'] = "'common'" |
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nl = False |
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array_seen = False |
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tail_text = '' |
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sd = '' |
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def c2u(name): |
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"""Convert camelCase (used in PHP) to Python-standard snake_case. |
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Src: |
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https://stackoverflow.com/questions/1175208/elegant-python-function-to-convert-camelcase-to-snake-case |
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Parameters |
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---------- |
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name: A function or variable name in camelCase |
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Returns |
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------- |
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str: The name in snake_case |
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""" |
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s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name) |
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s1 = re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower() |
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return s1 |
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def pythonize(line, fn='', subdir='gen'): |
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"""Convert a line of BMPM code from PHP to Python. |
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Parameters |
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---------- |
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line : str |
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A line of code |
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fn : str |
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A filename |
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subdir : str |
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The file's subdirectory |
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Returns |
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------- |
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The code in Python |
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""" |
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global array_seen, nl, sd |
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if '$all' in line: |
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return '' |
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if 'make the sum of all languages be visible in the function' in line: |
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return '' |
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line = line.strip() |
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if 'array' in line and not line.startswith('//'): |
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array_seen = True |
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line = re.sub('//+', '#', line) |
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# line = re.sub('"\.\((\$.+?)\)\."', r'\1', line) |
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if line and re.search(r'array\("[^"]+?"\)', line): |
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# print("### " + line) |
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line = '' |
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line = line.replace('array', '') |
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line = re.sub(r'^\s*', '', line) |
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line = re.sub(';$', '', line) |
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line = re.sub('^include_.+', '', line) |
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line = re.sub( |
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r'\$(approx|rules|exact)\[LanguageIndex\("([^"]+)", ' |
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+ r'\$languages\)\] = \$([a-zA-Z]+)', |
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lambda m: ( |
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"BMDATA['" |
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+ subdir |
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+ "']['" |
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+ m.group(1) |
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+ "'][L_" |
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+ m.group(2).upper() |
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+ '] = _' |
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+ subdir.upper() |
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+ '_' |
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+ c2u(m.group(3)).upper() |
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), |
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line, |
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) |
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line = re.sub( |
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r'\$(approx|rules|exact|hebrew)([A-Za-z]+) = _merge' |
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+ r'\(\$([a-zA-Z]+), \$([a-zA-Z]+)\)', |
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lambda m: ( |
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"BMDATA['" |
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+ subdir |
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+ "']['" |
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+ m.group(1) |
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+ "'][L_" |
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+ c2u(m.group(2)).upper() |
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+ '] = _' |
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+ subdir.upper() |
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+ '_' |
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+ c2u(m.group(3)).upper() |
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+ ' + _' |
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+ subdir.upper() |
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+ '_' |
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+ c2u(m.group(4)).upper() |
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), |
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line, |
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) |
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line = re.sub( |
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r'\$(approx|rules|exact)\[LanguageIndex\("([^"]+)", ' |
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+ r'\$languages\)\] = _merge\(\$([a-zA-Z]+), \$([a-zA-Z]+)\)', |
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lambda m: ( |
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"BMDATA['" |
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+ subdir |
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+ "']['" |
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+ m.group(1) |
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+ "'][L_" |
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+ c2u(m.group(2)).upper() |
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+ '] = _' |
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+ subdir.upper() |
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+ '_' |
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+ c2u(m.group(3)).upper() |
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+ ' + _' |
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+ subdir.upper() |
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+ '_' |
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+ c2u(m.group(4)).upper() |
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), |
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line, |
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) |
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line = re.sub( |
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r'^\$([a-zA-Z]+)', |
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lambda m: '_' + sd.upper() + '_' + c2u(m.group(1)).upper(), |
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line, |
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) |
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for _ in range(len(lang_tuple)): |
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line = re.sub(r'($[a-zA-Z]+) *\+ *($[a-zA-Z]+)', r'\1\+\2', line) |
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line = re.sub( |
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r'\$([a-zA-Z]+)', |
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lambda m: ( |
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'L_' + m.group(1).upper() |
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if m.group(1) in lang_dict |
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else '$' + m.group(1) |
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), |
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line, |
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) |
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line = re.sub(r'\[\"\.\((L_[A-Z_+]+)\)\.\"\]', r'[\1]', line) |
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line = re.sub( |
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'L_([A-Z]+)', lambda m: str(lang_dict[m.group(1).lower()]), line |
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) |
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for _ in range(4): |
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line = re.sub( |
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r'([0-9]+) *\+ *([0-9]+)', |
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lambda m: str(int(m.group(1)) + int(m.group(2))), |
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line, |
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) |
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if fn == 'lang': |
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if len(line.split(',')) >= 3: |
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parts = line.split(',') |
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parts[0] = re.sub('/(.+?)/', r'\1', parts[0]) |
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# parts[1] = re.sub('\$', 'L_', parts[1]) |
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# parts[1] = re.sub(' *\+ *', '|', parts[1]) |
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parts[2] = parts[2].title() |
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line = ','.join(parts) |
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if 'languagenames' in fn: |
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line = line.replace('"', "'") |
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line = line.replace("','", "', '") |
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if line and line[0] == "'": |
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line = ' ' * 14 + line |
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# fix upstream |
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# line = line.replace('ë', 'ü') |
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comment = '' |
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if '#' in line: |
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hashsign = line.find('#') |
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comment = line[hashsign:] |
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code = line[:hashsign] |
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else: |
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code = line |
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code = code.rstrip() |
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comment = comment.strip() |
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if not re.match(r'^\s*$', code): |
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comment = ' ' + comment |
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if '(' in code and ')' in code: |
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prefix = code[: code.find('(') + 1] |
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suffix = code[code.rfind(')') :] |
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tuplecontent = code[len(prefix) : len(code) - len(suffix)] |
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elts = tuplecontent.split(',') |
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for i in range(len(elts)): |
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elts[i] = elts[i].strip() |
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if elts[i][0] == '"' and elts[i][-1] == '"': |
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elts[i] = "'" + elts[i][1:-1].replace("'", "\\'") + "'" |
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tuplecontent = ', '.join(elts) |
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code = prefix + tuplecontent + suffix |
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line = code + comment |
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line = re.sub('# *', '# ', line) |
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if line: |
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nl = False |
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if array_seen and not (line[0] == '_' or line.startswith('BMDATA')): |
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line = ' ' * 4 + line |
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return line + '\n' |
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elif not nl: |
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nl = True |
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return '\n' |
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else: |
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return '' |
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def _run_script(): |
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global array_seen, nl, sd, tail_text |
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if len(sys.argv) > 1: |
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bmdir = sys.argv[1].rstrip('/') + '/' |
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else: |
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bmdir = '../../bmpm/' |
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outfilename = '../abydos/phonetic/_beider_morse_data.py' |
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outfile = codecs.open(outfilename, 'w', 'utf-8') |
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outfile.write( |
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'# Copyright 2014-2020 by \ |
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Christopher C. Little.\n# This file is part of Abydos.\n#\n# This file is \ |
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based on Alexander Beider and Stephen P. Morse\'s implementation\n# of the \ |
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Beider-Morse Phonetic Matching (BMPM) System, available at\n# \ |
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http://stevemorse.org/phonetics/bmpm.htm.\n#\n# Abydos is free software: \ |
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you can redistribute it and/or modify\n# it under the terms of the GNU \ |
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General Public License as published by\n# the Free Software Foundation, \ |
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either version 3 of the License, or\n# (at your option) any later version.\n\ |
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#\n# Abydos is distributed in the hope that it will be useful,\n# but WITHOUT \ |
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ANY WARRANTY; without even the implied warranty of\n# MERCHANTABILITY or \ |
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FITNESS FOR A PARTICULAR PURPOSE. See the\n# GNU General Public License for \ |
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more details.\n#\n# You should have received a copy of the GNU General Public \ |
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License\n# along with Abydos. If not, see <http://www.gnu.org/licenses/>.\n\n\ |
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"""abydos.phonetic._beider_morse_data.\n\nBehind-the-scenes constants, \ |
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rules, etc. for the Beider-Morse Phonentic\nMatching (BMPM) algorithm\n\nDO \ |
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NOT EDIT - This document is automatically generated from the reference\n\ |
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implementation in PHP.\n"""\n\nfrom \ |
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__future__ import (\n absolute_import,\n division,\n print_function,\ |
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unicode_literals,\n)\n' |
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) |
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outfile.write('L_NONE = 0\n') |
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for i, l in enumerate(lang_tuple): |
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outfile.write('L_' + l.upper() + ' = 2**' + str(i) + '\n') |
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outfile.write('\n\n') |
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tail_text += '\nBMDATA = {} # type: ignore\n' |
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subdirs = ('gen', 'sep', 'ash') |
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for s in subdirs: |
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sd = s |
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tail_text += "\nBMDATA['" + s + "'] = {}\n" |
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tail_text += "BMDATA['" + s + "']['approx'] = {}\n" |
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tail_text += "BMDATA['" + s + "']['exact'] = {}\n" |
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tail_text += "BMDATA['" + s + "']['rules'] = {}\n" |
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tail_text += "BMDATA['" + s + "']['hebrew'] = {}\n\n" |
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tail_text += ( |
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"BMDATA['" |
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+ s |
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+ "']['language_rules'] = _" |
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+ s.upper() |
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+ '_LANGUAGE_RULES\n' |
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) |
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tail_text += ( |
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"BMDATA['" + s + "']['languages'] = _" + s.upper() + '_LANGUAGES\n' |
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) |
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phps = [ |
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f |
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for f in sorted(listdir(bmdir + s + '/')) |
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|
if (isfile(bmdir + s + '/' + f) and f.endswith('.php')) |
355
|
|
|
] |
356
|
|
|
for infilename in phps: |
357
|
|
|
for pfx in ( |
358
|
|
|
'rules', |
359
|
|
|
'approx', |
360
|
|
|
'exact', |
361
|
|
|
'hebrew', |
362
|
|
|
'language', |
363
|
|
|
'lang', |
364
|
|
|
): |
365
|
|
|
if infilename.startswith(pfx): |
366
|
|
|
array_seen = False |
367
|
|
|
infilepath = bmdir + s + '/' + infilename |
368
|
|
|
infileenc = chardet.detect(open(infilepath, 'rb').read())[ |
369
|
|
|
'encoding' |
370
|
|
|
] |
371
|
|
|
print(s + '/' + infilename) # noqa: T001 |
372
|
|
|
infile = codecs.open(infilepath, 'r', infileenc) |
373
|
|
|
# if infilename.startswith('lang'): |
374
|
|
|
# tuplename = infilename[:-4] |
375
|
|
|
# else: |
376
|
|
|
# tuplename = pfx + '_' + infilename[len(pfx) : -4] |
377
|
|
|
# indent = len(tuplename) + 21 |
378
|
|
|
|
379
|
|
|
outfile.write('# ' + s + '/' + infilename + '\n') |
380
|
|
|
|
381
|
|
|
ignore = True |
382
|
|
|
for line in infile: |
383
|
|
|
if 'function Language' in line: |
384
|
|
|
break |
385
|
|
|
if not ignore: |
386
|
|
|
if re.search(r'\?>', line): |
387
|
|
|
ignore = True |
388
|
|
|
else: |
389
|
|
|
line = pythonize(line, infilename[:-4], s) |
390
|
|
|
if line.startswith('BMDATA'): |
391
|
|
|
tail_text += line |
392
|
|
|
else: |
393
|
|
|
outfile.write(line) |
394
|
|
|
if '*/' in line: |
395
|
|
|
ignore = False |
396
|
|
|
|
397
|
|
|
outfile.write('\n\n') |
398
|
|
|
break |
399
|
|
|
|
400
|
|
|
outfile.write(tail_text) |
401
|
|
|
|
402
|
|
|
outfile.close() |
403
|
|
|
outfilelines = codecs.open(outfilename, 'r', 'utf-8').readlines() |
404
|
|
|
outfile = codecs.open(outfilename, 'w', 'utf-8') |
405
|
|
|
nl = False |
406
|
|
|
fixlanguagesarray = False |
407
|
|
|
|
408
|
|
|
sep_lang = ( |
409
|
|
|
"('any', 'french', 'hebrew', 'italian', 'portuguese', 'spanish')" |
410
|
|
|
) |
411
|
|
|
|
412
|
|
|
for line in outfilelines: |
413
|
|
|
line = line.rstrip() |
414
|
|
|
if line: |
415
|
|
|
if fixlanguagesarray: |
416
|
|
|
line = ' ' + line.strip() |
417
|
|
|
fixlanguagesarray = False |
418
|
|
|
if len(line) > 79 or sep_lang in line: |
419
|
|
|
line += ' # noqa: E501' |
420
|
|
|
outfile.write(line) |
421
|
|
|
if not line.endswith('='): |
422
|
|
|
outfile.write('\n') |
423
|
|
|
else: |
424
|
|
|
fixlanguagesarray = True |
425
|
|
|
nl = False |
426
|
|
|
else: |
427
|
|
|
if not nl: |
428
|
|
|
outfile.write('\n') |
429
|
|
|
nl = True |
430
|
|
|
|
431
|
|
|
outfile.write( |
432
|
|
|
"\n\nif __name__ == '__main__':\n import doctest\n\n\ |
433
|
|
|
doctest.testmod()\n" |
434
|
|
|
) |
435
|
|
|
|
436
|
|
|
|
437
|
|
|
if __name__ == '__main__': |
438
|
|
|
_run_script() |
439
|
|
|
|