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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /addon-sdk/source/python-lib/cuddlefish/property_parser.py | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'addon-sdk/source/python-lib/cuddlefish/property_parser.py')
-rw-r--r-- | addon-sdk/source/python-lib/cuddlefish/property_parser.py | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/addon-sdk/source/python-lib/cuddlefish/property_parser.py b/addon-sdk/source/python-lib/cuddlefish/property_parser.py new file mode 100644 index 000000000..20068a264 --- /dev/null +++ b/addon-sdk/source/python-lib/cuddlefish/property_parser.py @@ -0,0 +1,111 @@ +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +import re +import codecs + +class MalformedLocaleFileError(Exception): + pass + +def parse_file(path): + return parse(read_file(path), path) + +def read_file(path): + try: + return codecs.open( path, "r", "utf-8" ).readlines() + except UnicodeDecodeError, e: + raise MalformedLocaleFileError( + 'Following locale file is not a valid ' + + 'UTF-8 file: %s\n%s"' % (path, str(e))) + +COMMENT = re.compile(r'\s*#') +EMPTY = re.compile(r'^\s+$') +KEYVALUE = re.compile(r"\s*([^=:]+)(=|:)\s*(.*)") + +def parse(lines, path=None): + lines = iter(lines) + lineNo = 1 + pairs = dict() + for line in lines: + if COMMENT.match(line) or EMPTY.match(line) or len(line) == 0: + continue + m = KEYVALUE.match(line) + if not m: + raise MalformedLocaleFileError( + 'Following locale file is not a valid .properties file: %s\n' + 'Line %d is incorrect:\n%s' % (path, lineNo, line)) + + # All spaces are strip. Spaces at the beginning are stripped + # by the regular expression. We have to strip spaces at the end. + key = m.group(1).rstrip() + val = m.group(3).rstrip() + val = val.encode('raw-unicode-escape').decode('raw-unicode-escape') + + # `key` can be empty when key is only made of spaces + if not key: + raise MalformedLocaleFileError( + 'Following locale file is not a valid .properties file: %s\n' + 'Key is invalid on line %d is incorrect:\n%s' % + (path, lineNo, line)) + + # Multiline value: keep reading lines, while lines end with backslash + # and strip spaces at the beginning of lines except the last line + # that doesn't end up with backslash, we strip all spaces for this one. + if val.endswith("\\"): + val = val[:-1] + try: + # remove spaces before/after and especially the \n at EOL + line = lines.next().strip() + while line.endswith("\\"): + val += line[:-1].lstrip() + line = lines.next() + lineNo += 1 + val += line.strip() + except StopIteration: + raise MalformedLocaleFileError( + 'Following locale file is not a valid .properties file: %s\n' + 'Unexpected EOF in multiline sequence at line %d:\n%s' % + (path, lineNo, line)) + # Save this new pair + pairs[key] = val + lineNo += 1 + + normalize_plural(path, pairs) + return pairs + +# Plural forms in properties files are defined like this: +# key = other form +# key[one] = one form +# key[...] = ... +# Parse them and merge each key into one object containing all forms: +# key: { +# other: "other form", +# one: "one form", +# ...: ... +# } +PLURAL_FORM = re.compile(r'^(.*)\[(zero|one|two|few|many|other)\]$') +def normalize_plural(path, pairs): + for key in list(pairs.keys()): + m = PLURAL_FORM.match(key) + if not m: + continue + main_key = m.group(1) + plural_form = m.group(2) + # Allows not specifying a generic key (i.e a key without [form]) + if not main_key in pairs: + pairs[main_key] = {} + # Ensure that we always have the [other] form + if not main_key + "[other]" in pairs: + raise MalformedLocaleFileError( + 'Following locale file is not a valid UTF-8 file: %s\n' + 'This plural form doesn\'t have a matching `%s[other]` form:\n' + '%s\n' + 'You have to defined following key:\n%s' + % (path, main_key, key, main_key)) + # convert generic form into an object if it is still a string + if isinstance(pairs[main_key], unicode): + pairs[main_key] = {"other": pairs[main_key]} + # then, add this new plural form + pairs[main_key][plural_form] = pairs[key] + del pairs[key] |