r69522 MediaWiki - Code Review archive

Repository:	MediaWiki
Revision:	< r69521‎ \| r69522 \| r69523 >
Date:	21:31, 18 July 2010
Author:	platonides
Status:	ok
Tags:
Comment:	(Bug 24436) Move cssjanus to maintenance folder
Modified paths:	/trunk/phase3/maintenance/cssjanus (added) (history) /trunk/phase3/skins/vector/Makefile (modified) (history) /trunk/phase3/skins/vector/cssjanus (deleted) (history)

Diff [purge]

Index: trunk/phase3/maintenance/cssjanus/cssjanus.py
—	—	@@ -0,0 +1,574 @@
	2	+#!/usr/bin/python
	3	+#
	4	+# Copyright 2008 Google Inc. All Rights Reserved.
	5	+
	6	+"""Converts a LeftToRight Cascading Style Sheet into a RightToLeft one.
	7	+
	8	+ This is a utility script for replacing "left" oriented things in a CSS file
	9	+ like float, padding, margin with "right" oriented values.
	10	+ It also does the opposite.
	11	+ The goal is to be able to conditionally serve one large, cat'd, compiled CSS
	12	+ file appropriate for LeftToRight oriented languages and RightToLeft ones.
	13	+ This utility will hopefully help your structural layout done in CSS in
	14	+ terms of its RTL compatibility. It will not help with some of the more
	15	+ complicated bidirectional text issues.
	16	+"""
	17	+
	18	+__author__ = 'elsigh@google.com (Lindsey Simon)'
	19	+__version__ = '0.1'
	20	+
	21	+import logging
	22	+import re
	23	+import sys
	24	+import getopt
	25	+import os
	26	+
	27	+import csslex
	28	+
	29	+logging.getLogger().setLevel(logging.INFO)
	30	+
	31	+# Global for the command line flags.
	32	+SWAP_LTR_RTL_IN_URL_DEFAULT = False
	33	+SWAP_LEFT_RIGHT_IN_URL_DEFAULT = False
	34	+FLAGS = {'swap_ltr_rtl_in_url': SWAP_LTR_RTL_IN_URL_DEFAULT,
	35	+ 'swap_left_right_in_url': SWAP_LEFT_RIGHT_IN_URL_DEFAULT}
	36	+
	37	+# Generic token delimiter character.
	38	+TOKEN_DELIMITER = '~'
	39	+
	40	+# This is a temporary match token we use when swapping strings.
	41	+TMP_TOKEN = '%sTMP%s' % (TOKEN_DELIMITER, TOKEN_DELIMITER)
	42	+
	43	+# Token to be used for joining lines.
	44	+TOKEN_LINES = '%sJ%s' % (TOKEN_DELIMITER, TOKEN_DELIMITER)
	45	+
	46	+# Global constant text strings for CSS value matches.
	47	+LTR = 'ltr'
	48	+RTL = 'rtl'
	49	+LEFT = 'left'
	50	+RIGHT = 'right'
	51	+
	52	+# This is a lookbehind match to ensure that we don't replace instances
	53	+# of our string token (left, rtl, etc...) if there's a letter in front of it.
	54	+# Specifically, this prevents replacements like 'background: url(bright.png)'.
	55	+LOOKBEHIND_NOT_LETTER = r'(?<![a-zA-Z])'
	56	+
	57	+# This is a lookahead match to make sure we don't replace left and right
	58	+# in actual classnames, so that we don't break the HTML/CSS dependencies.
	59	+# Read literally, it says ignore cases where the word left, for instance, is
	60	+# directly followed by valid classname characters and a curly brace.
	61	+# ex: .column-left {float: left} will become .column-left {float: right}
	62	+LOOKAHEAD_NOT_OPEN_BRACE = (r'(?!(?:%s\|%s\|%s\|#\|\:\|\.\|\,\|\+\|>)*?{)' %
	63	+ (csslex.NMCHAR, TOKEN_LINES, csslex.SPACE))
	64	+
	65	+
	66	+# These two lookaheads are to test whether or not we are within a
	67	+# background: url(HERE) situation.
	68	+# Ref: http://www.w3.org/TR/CSS21/syndata.html#uri
	69	+VALID_AFTER_URI_CHARS = r'[\'\"]?%s' % csslex.WHITESPACE
	70	+LOOKAHEAD_NOT_CLOSING_PAREN = r'(?!%s?%s\))' % (csslex.URL_CHARS,
	71	+ VALID_AFTER_URI_CHARS)
	72	+LOOKAHEAD_FOR_CLOSING_PAREN = r'(?=%s?%s\))' % (csslex.URL_CHARS,
	73	+ VALID_AFTER_URI_CHARS)
	74	+
	75	+# Compile a regex to swap left and right values in 4 part notations.
	76	+# We need to match negatives and decimal numeric values.
	77	+# ex. 'margin: .25em -2px 3px 0' becomes 'margin: .25em 0 3px -2px'.
	78	+POSSIBLY_NEGATIVE_QUANTITY = r'((?:-?%s)\|(?:inherit\|auto))' % csslex.QUANTITY
	79	+POSSIBLY_NEGATIVE_QUANTITY_SPACE = r'%s%s%s' % (POSSIBLY_NEGATIVE_QUANTITY,
	80	+ csslex.SPACE,
	81	+ csslex.WHITESPACE)
	82	+FOUR_NOTATION_QUANTITY_RE = re.compile(r'%s%s%s%s' %
	83	+ (POSSIBLY_NEGATIVE_QUANTITY_SPACE,
	84	+ POSSIBLY_NEGATIVE_QUANTITY_SPACE,
	85	+ POSSIBLY_NEGATIVE_QUANTITY_SPACE,
	86	+ POSSIBLY_NEGATIVE_QUANTITY),
	87	+ re.I)
	88	+COLOR = r'(%s\|%s)' % (csslex.NAME, csslex.HASH)
	89	+COLOR_SPACE = r'%s%s' % (COLOR, csslex.SPACE)
	90	+FOUR_NOTATION_COLOR_RE = re.compile(r'(-color%s:%s)%s%s%s(%s)' %
	91	+ (csslex.WHITESPACE,
	92	+ csslex.WHITESPACE,
	93	+ COLOR_SPACE,
	94	+ COLOR_SPACE,
	95	+ COLOR_SPACE,
	96	+ COLOR),
	97	+ re.I)
	98	+
	99	+# Compile the cursor resize regexes
	100	+CURSOR_EAST_RE = re.compile(LOOKBEHIND_NOT_LETTER + '([ns]?)e-resize')
	101	+CURSOR_WEST_RE = re.compile(LOOKBEHIND_NOT_LETTER + '([ns]?)w-resize')
	102	+
	103	+# Matches the condition where we need to replace the horizontal component
	104	+# of a background-position value when expressed in horizontal percentage.
	105	+# Had to make two regexes because in the case of position-x there is only
	106	+# one quantity, and otherwise we don't want to match and change cases with only
	107	+# one quantity.
	108	+BG_HORIZONTAL_PERCENTAGE_RE = re.compile(r'background(-position)?(%s:%s)'
	109	+ '([^%%]*?)(%s)%%'
	110	+ '(%s(?:%s\|%s))' % (csslex.WHITESPACE,
	111	+ csslex.WHITESPACE,
	112	+ csslex.NUM,
	113	+ csslex.WHITESPACE,
	114	+ csslex.QUANTITY,
	115	+ csslex.IDENT))
	116	+
	117	+BG_HORIZONTAL_PERCENTAGE_X_RE = re.compile(r'background-position-x(%s:%s)'
	118	+ '(%s)%%' % (csslex.WHITESPACE,
	119	+ csslex.WHITESPACE,
	120	+ csslex.NUM))
	121	+
	122	+# Matches the opening of a body selector.
	123	+BODY_SELECTOR = r'body%s{%s' % (csslex.WHITESPACE, csslex.WHITESPACE)
	124	+
	125	+# Matches anything up until the closing of a selector.
	126	+CHARS_WITHIN_SELECTOR = r'[^\}]*?'
	127	+
	128	+# Matches the direction property in a selector.
	129	+DIRECTION_RE = r'direction%s:%s' % (csslex.WHITESPACE, csslex.WHITESPACE)
	130	+
	131	+# These allow us to swap "ltr" with "rtl" and vice versa ONLY within the
	132	+# body selector and on the same line.
	133	+BODY_DIRECTION_LTR_RE = re.compile(r'(%s)(%s)(%s)(ltr)' %
	134	+ (BODY_SELECTOR, CHARS_WITHIN_SELECTOR,
	135	+ DIRECTION_RE),
	136	+ re.I)
	137	+BODY_DIRECTION_RTL_RE = re.compile(r'(%s)(%s)(%s)(rtl)' %
	138	+ (BODY_SELECTOR, CHARS_WITHIN_SELECTOR,
	139	+ DIRECTION_RE),
	140	+ re.I)
	141	+
	142	+
	143	+# Allows us to swap "direction:ltr" with "direction:rtl" and
	144	+# vice versa anywhere in a line.
	145	+DIRECTION_LTR_RE = re.compile(r'%s(ltr)' % DIRECTION_RE)
	146	+DIRECTION_RTL_RE = re.compile(r'%s(rtl)' % DIRECTION_RE)
	147	+
	148	+# We want to be able to switch left with right and vice versa anywhere
	149	+# we encounter left/right strings, EXCEPT inside the background:url(). The next
	150	+# two regexes are for that purpose. We have alternate IN_URL versions of the
	151	+# regexes compiled in case the user passes the flag that they do
	152	+# actually want to have left and right swapped inside of background:urls.
	153	+LEFT_RE = re.compile('%s(%s)%s%s' % (LOOKBEHIND_NOT_LETTER,
	154	+ LEFT,
	155	+ LOOKAHEAD_NOT_CLOSING_PAREN,
	156	+ LOOKAHEAD_NOT_OPEN_BRACE),
	157	+ re.I)
	158	+RIGHT_RE = re.compile('%s(%s)%s%s' % (LOOKBEHIND_NOT_LETTER,
	159	+ RIGHT,
	160	+ LOOKAHEAD_NOT_CLOSING_PAREN,
	161	+ LOOKAHEAD_NOT_OPEN_BRACE),
	162	+ re.I)
	163	+LEFT_IN_URL_RE = re.compile('%s(%s)%s' % (LOOKBEHIND_NOT_LETTER,
	164	+ LEFT,
	165	+ LOOKAHEAD_FOR_CLOSING_PAREN),
	166	+ re.I)
	167	+RIGHT_IN_URL_RE = re.compile('%s(%s)%s' % (LOOKBEHIND_NOT_LETTER,
	168	+ RIGHT,
	169	+ LOOKAHEAD_FOR_CLOSING_PAREN),
	170	+ re.I)
	171	+LTR_IN_URL_RE = re.compile('%s(%s)%s' % (LOOKBEHIND_NOT_LETTER,
	172	+ LTR,
	173	+ LOOKAHEAD_FOR_CLOSING_PAREN),
	174	+ re.I)
	175	+RTL_IN_URL_RE = re.compile('%s(%s)%s' % (LOOKBEHIND_NOT_LETTER,
	176	+ RTL,
	177	+ LOOKAHEAD_FOR_CLOSING_PAREN),
	178	+ re.I)
	179	+
	180	+COMMENT_RE = re.compile('(%s)' % csslex.COMMENT, re.I)
	181	+
	182	+NOFLIP_TOKEN = r'\@noflip'
	183	+# The NOFLIP_TOKEN inside of a comment. For now, this requires that comments
	184	+# be in the input, which means users of a css compiler would have to run
	185	+# this script first if they want this functionality.
	186	+NOFLIP_ANNOTATION = r'/\%s%s%s\/' % (csslex.WHITESPACE,
	187	+ NOFLIP_TOKEN,
	188	+ csslex. WHITESPACE)
	189	+
	190	+# After a NOFLIP_ANNOTATION, and within a class selector, we want to be able
	191	+# to set aside a single rule not to be flipped. We can do this by matching
	192	+# our NOFLIP annotation and then using a lookahead to make sure there is not
	193	+# an opening brace before the match.
	194	+NOFLIP_SINGLE_RE = re.compile(r'(%s%s[^;}]+;?)' % (NOFLIP_ANNOTATION,
	195	+ LOOKAHEAD_NOT_OPEN_BRACE),
	196	+ re.I)
	197	+
	198	+# After a NOFLIP_ANNOTATION, we want to grab anything up until the next } which
	199	+# means the entire following class block. This will prevent all of its
	200	+# declarations from being flipped.
	201	+NOFLIP_CLASS_RE = re.compile(r'(%s%s})' % (NOFLIP_ANNOTATION,
	202	+ CHARS_WITHIN_SELECTOR),
	203	+ re.I)
	204	+
	205	+
	206	+class Tokenizer:
	207	+ """Replaces any CSS comments with string tokens and vice versa."""
	208	+
	209	+ def __init__(self, token_re, token_string):
	210	+ """Constructor for the Tokenizer.
	211	+
	212	+ Args:
	213	+ token_re: A regex for the string to be replace by a token.
	214	+ token_string: The string to put between token delimiters when tokenizing.
	215	+ """
	216	+ logging.debug('Tokenizer::init token_string=%s' % token_string)
	217	+ self.token_re = token_re
	218	+ self.token_string = token_string
	219	+ self.originals = []
	220	+
	221	+ def Tokenize(self, line):
	222	+ """Replaces any string matching token_re in line with string tokens.
	223	+
	224	+ By passing a function as an argument to the re.sub line below, we bypass
	225	+ the usual rule where re.sub will only replace the left-most occurrence of
	226	+ a match by calling the passed in function for each occurrence.
	227	+
	228	+ Args:
	229	+ line: A line to replace token_re matches in.
	230	+
	231	+ Returns:
	232	+ line: A line with token_re matches tokenized.
	233	+ """
	234	+ line = self.token_re.sub(self.TokenizeMatches, line)
	235	+ logging.debug('Tokenizer::Tokenize returns: %s' % line)
	236	+ return line
	237	+
	238	+ def DeTokenize(self, line):
	239	+ """Replaces tokens with the original string.
	240	+
	241	+ Args:
	242	+ line: A line with tokens.
	243	+
	244	+ Returns:
	245	+ line with any tokens replaced by the original string.
	246	+ """
	247	+
	248	+ # Put all of the comments back in by their comment token.
	249	+ for i, original in enumerate(self.originals):
	250	+ token = '%s%s_%s%s' % (TOKEN_DELIMITER, self.token_string, i + 1,
	251	+ TOKEN_DELIMITER)
	252	+ line = line.replace(token, original)
	253	+ logging.debug('Tokenizer::DeTokenize i:%s w/%s' % (i, token))
	254	+ logging.debug('Tokenizer::DeTokenize returns: %s' % line)
	255	+ return line
	256	+
	257	+ def TokenizeMatches(self, m):
	258	+ """Replaces matches with tokens and stores the originals.
	259	+
	260	+ Args:
	261	+ m: A match object.
	262	+
	263	+ Returns:
	264	+ A string token which replaces the CSS comment.
	265	+ """
	266	+ logging.debug('Tokenizer::TokenizeMatches %s' % m.group(1))
	267	+ self.originals.append(m.group(1))
	268	+ return '%s%s_%s%s' % (TOKEN_DELIMITER,
	269	+ self.token_string,
	270	+ len(self.originals),
	271	+ TOKEN_DELIMITER)
	272	+
	273	+
	274	+def FixBodyDirectionLtrAndRtl(line):
	275	+ """Replaces ltr with rtl and vice versa ONLY in the body direction.
	276	+
	277	+ Args:
	278	+ line: A string to replace instances of ltr with rtl.
	279	+ Returns:
	280	+ line with direction: ltr and direction: rtl swapped only in body selector.
	281	+ line = FixBodyDirectionLtrAndRtl('body { direction:ltr }')
	282	+ line will now be 'body { direction:rtl }'.
	283	+ """
	284	+
	285	+ line = BODY_DIRECTION_LTR_RE.sub('\\1\\2\\3%s' % TMP_TOKEN, line)
	286	+ line = BODY_DIRECTION_RTL_RE.sub('\\1\\2\\3%s' % LTR, line)
	287	+ line = line.replace(TMP_TOKEN, RTL)
	288	+ logging.debug('FixBodyDirectionLtrAndRtl returns: %s' % line)
	289	+ return line
	290	+
	291	+
	292	+def FixLeftAndRight(line):
	293	+ """Replaces left with right and vice versa in line.
	294	+
	295	+ Args:
	296	+ line: A string in which to perform the replacement.
	297	+
	298	+ Returns:
	299	+ line with left and right swapped. For example:
	300	+ line = FixLeftAndRight('padding-left: 2px; margin-right: 1px;')
	301	+ line will now be 'padding-right: 2px; margin-left: 1px;'.
	302	+ """
	303	+
	304	+ line = LEFT_RE.sub(TMP_TOKEN, line)
	305	+ line = RIGHT_RE.sub(LEFT, line)
	306	+ line = line.replace(TMP_TOKEN, RIGHT)
	307	+ logging.debug('FixLeftAndRight returns: %s' % line)
	308	+ return line
	309	+
	310	+
	311	+def FixLeftAndRightInUrl(line):
	312	+ """Replaces left with right and vice versa ONLY within background urls.
	313	+
	314	+ Args:
	315	+ line: A string in which to replace left with right and vice versa.
	316	+
	317	+ Returns:
	318	+ line with left and right swapped in the url string. For example:
	319	+ line = FixLeftAndRightInUrl('background:url(right.png)')
	320	+ line will now be 'background:url(left.png)'.
	321	+ """
	322	+
	323	+ line = LEFT_IN_URL_RE.sub(TMP_TOKEN, line)
	324	+ line = RIGHT_IN_URL_RE.sub(LEFT, line)
	325	+ line = line.replace(TMP_TOKEN, RIGHT)
	326	+ logging.debug('FixLeftAndRightInUrl returns: %s' % line)
	327	+ return line
	328	+
	329	+
	330	+def FixLtrAndRtlInUrl(line):
	331	+ """Replaces ltr with rtl and vice versa ONLY within background urls.
	332	+
	333	+ Args:
	334	+ line: A string in which to replace ltr with rtl and vice versa.
	335	+
	336	+ Returns:
	337	+ line with left and right swapped. For example:
	338	+ line = FixLtrAndRtlInUrl('background:url(rtl.png)')
	339	+ line will now be 'background:url(ltr.png)'.
	340	+ """
	341	+
	342	+ line = LTR_IN_URL_RE.sub(TMP_TOKEN, line)
	343	+ line = RTL_IN_URL_RE.sub(LTR, line)
	344	+ line = line.replace(TMP_TOKEN, RTL)
	345	+ logging.debug('FixLtrAndRtlInUrl returns: %s' % line)
	346	+ return line
	347	+
	348	+
	349	+def FixCursorProperties(line):
	350	+ """Fixes directional CSS cursor properties.
	351	+
	352	+ Args:
	353	+ line: A string to fix CSS cursor properties in.
	354	+
	355	+ Returns:
	356	+ line reformatted with the cursor properties substituted. For example:
	357	+ line = FixCursorProperties('cursor: ne-resize')
	358	+ line will now be 'cursor: nw-resize'.
	359	+ """
	360	+
	361	+ line = CURSOR_EAST_RE.sub('\\1' + TMP_TOKEN, line)
	362	+ line = CURSOR_WEST_RE.sub('\\1e-resize', line)
	363	+ line = line.replace(TMP_TOKEN, 'w-resize')
	364	+ logging.debug('FixCursorProperties returns: %s' % line)
	365	+ return line
	366	+
	367	+
	368	+def FixFourPartNotation(line):
	369	+ """Fixes the second and fourth positions in 4 part CSS notation.
	370	+
	371	+ Args:
	372	+ line: A string to fix 4 part CSS notation in.
	373	+
	374	+ Returns:
	375	+ line reformatted with the 4 part notations swapped. For example:
	376	+ line = FixFourPartNotation('padding: 1px 2px 3px 4px')
	377	+ line will now be 'padding: 1px 4px 3px 2px'.
	378	+ """
	379	+ line = FOUR_NOTATION_QUANTITY_RE.sub('\\1 \\4 \\3 \\2', line)
	380	+ line = FOUR_NOTATION_COLOR_RE.sub('\\1\\2 \\5 \\4 \\3', line)
	381	+ logging.debug('FixFourPartNotation returns: %s' % line)
	382	+ return line
	383	+
	384	+
	385	+def FixBackgroundPosition(line):
	386	+ """Fixes horizontal background percentage values in line.
	387	+
	388	+ Args:
	389	+ line: A string to fix horizontal background position values in.
	390	+
	391	+ Returns:
	392	+ line reformatted with the 4 part notations swapped.
	393	+ """
	394	+ line = BG_HORIZONTAL_PERCENTAGE_RE.sub(CalculateNewBackgroundPosition, line)
	395	+ line = BG_HORIZONTAL_PERCENTAGE_X_RE.sub(CalculateNewBackgroundPositionX,
	396	+ line)
	397	+ logging.debug('FixBackgroundPosition returns: %s' % line)
	398	+ return line
	399	+
	400	+
	401	+def CalculateNewBackgroundPosition(m):
	402	+ """Fixes horizontal background-position percentages.
	403	+
	404	+ This function should be used as an argument to re.sub since it needs to
	405	+ perform replacement specific calculations.
	406	+
	407	+ Args:
	408	+ m: A match object.
	409	+
	410	+ Returns:
	411	+ A string with the horizontal background position percentage fixed.
	412	+ BG_HORIZONTAL_PERCENTAGE_RE.sub(FixBackgroundPosition,
	413	+ 'background-position: 75% 50%')
	414	+ will return 'background-position: 25% 50%'.
	415	+ """
	416	+
	417	+ # The flipped value is the offset from 100%
	418	+ new_x = str(100-int(m.group(4)))
	419	+
	420	+ # Since m.group(1) may very well be None type and we need a string..
	421	+ if m.group(1):
	422	+ position_string = m.group(1)
	423	+ else:
	424	+ position_string = ''
	425	+
	426	+ return 'background%s%s%s%s%%%s' % (position_string, m.group(2), m.group(3),
	427	+ new_x, m.group(5))
	428	+
	429	+
	430	+def CalculateNewBackgroundPositionX(m):
	431	+ """Fixes percent based background-position-x.
	432	+
	433	+ This function should be used as an argument to re.sub since it needs to
	434	+ perform replacement specific calculations.
	435	+
	436	+ Args:
	437	+ m: A match object.
	438	+
	439	+ Returns:
	440	+ A string with the background-position-x percentage fixed.
	441	+ BG_HORIZONTAL_PERCENTAGE_X_RE.sub(CalculateNewBackgroundPosition,
	442	+ 'background-position-x: 75%')
	443	+ will return 'background-position-x: 25%'.
	444	+ """
	445	+
	446	+ # The flipped value is the offset from 100%
	447	+ new_x = str(100-int(m.group(2)))
	448	+
	449	+ return 'background-position-x%s%s%%' % (m.group(1), new_x)
	450	+
	451	+
	452	+def ChangeLeftToRightToLeft(lines,
	453	+ swap_ltr_rtl_in_url=None,
	454	+ swap_left_right_in_url=None):
	455	+ """Turns lines into a stream and runs the fixing functions against it.
	456	+
	457	+ Args:
	458	+ lines: An list of CSS lines.
	459	+ swap_ltr_rtl_in_url: Overrides this flag if param is set.
	460	+ swap_left_right_in_url: Overrides this flag if param is set.
	461	+
	462	+ Returns:
	463	+ The same lines, but with left and right fixes.
	464	+ """
	465	+
	466	+ global FLAGS
	467	+
	468	+ # Possibly override flags with params.
	469	+ logging.debug('ChangeLeftToRightToLeft swap_ltr_rtl_in_url=%s, '
	470	+ 'swap_left_right_in_url=%s' % (swap_ltr_rtl_in_url,
	471	+ swap_left_right_in_url))
	472	+ if swap_ltr_rtl_in_url is None:
	473	+ swap_ltr_rtl_in_url = FLAGS['swap_ltr_rtl_in_url']
	474	+ if swap_left_right_in_url is None:
	475	+ swap_left_right_in_url = FLAGS['swap_left_right_in_url']
	476	+
	477	+ # Turns the array of lines into a single line stream.
	478	+ logging.debug('LINES COUNT: %s' % len(lines))
	479	+ line = TOKEN_LINES.join(lines)
	480	+
	481	+ # Tokenize any single line rules with the /* noflip */ annotation.
	482	+ noflip_single_tokenizer = Tokenizer(NOFLIP_SINGLE_RE, 'NOFLIP_SINGLE')
	483	+ line = noflip_single_tokenizer.Tokenize(line)
	484	+
	485	+ # Tokenize any class rules with the /* noflip */ annotation.
	486	+ noflip_class_tokenizer = Tokenizer(NOFLIP_CLASS_RE, 'NOFLIP_CLASS')
	487	+ line = noflip_class_tokenizer.Tokenize(line)
	488	+
	489	+ # Tokenize the comments so we can preserve them through the changes.
	490	+ comment_tokenizer = Tokenizer(COMMENT_RE, 'C')
	491	+ line = comment_tokenizer.Tokenize(line)
	492	+
	493	+ # Here starteth the various left/right orientation fixes.
	494	+ line = FixBodyDirectionLtrAndRtl(line)
	495	+
	496	+ if swap_left_right_in_url:
	497	+ line = FixLeftAndRightInUrl(line)
	498	+
	499	+ if swap_ltr_rtl_in_url:
	500	+ line = FixLtrAndRtlInUrl(line)
	501	+
	502	+ line = FixLeftAndRight(line)
	503	+ line = FixCursorProperties(line)
	504	+ line = FixFourPartNotation(line)
	505	+ line = FixBackgroundPosition(line)
	506	+
	507	+ # DeTokenize the single line noflips.
	508	+ line = noflip_single_tokenizer.DeTokenize(line)
	509	+
	510	+ # DeTokenize the class-level noflips.
	511	+ line = noflip_class_tokenizer.DeTokenize(line)
	512	+
	513	+ # DeTokenize the comments.
	514	+ line = comment_tokenizer.DeTokenize(line)
	515	+
	516	+ # Rejoin the lines back together.
	517	+ lines = line.split(TOKEN_LINES)
	518	+
	519	+ return lines
	520	+
	521	+def usage():
	522	+ """Prints out usage information."""
	523	+
	524	+ print 'Usage:'
	525	+ print ' ./cssjanus.py < file.css > file-rtl.css'
	526	+ print 'Flags:'
	527	+ print ' --swap_left_right_in_url: Fixes "left"/"right" string within urls.'
	528	+ print ' Ex: ./cssjanus.py --swap_left_right_in_url < file.css > file_rtl.css'
	529	+ print ' --swap_ltr_rtl_in_url: Fixes "ltr"/"rtl" string within urls.'
	530	+ print ' Ex: ./cssjanus --swap_ltr_rtl_in_url < file.css > file_rtl.css'
	531	+
	532	+def setflags(opts):
	533	+ """Parse the passed in command line arguments and set the FLAGS global.
	534	+
	535	+ Args:
	536	+ opts: getopt iterable intercepted from argv.
	537	+ """
	538	+
	539	+ global FLAGS
	540	+
	541	+ # Parse the arguments.
	542	+ for opt, arg in opts:
	543	+ logging.debug('opt: %s, arg: %s' % (opt, arg))
	544	+ if opt in ("-h", "--help"):
	545	+ usage()
	546	+ sys.exit()
	547	+ elif opt in ("-d", "--debug"):
	548	+ logging.getLogger().setLevel(logging.DEBUG)
	549	+ elif opt == '--swap_ltr_rtl_in_url':
	550	+ FLAGS['swap_ltr_rtl_in_url'] = True
	551	+ elif opt == '--swap_left_right_in_url':
	552	+ FLAGS['swap_left_right_in_url'] = True
	553	+
	554	+
	555	+def main(argv):
	556	+ """Sends stdin lines to ChangeLeftToRightToLeft and writes to stdout."""
	557	+
	558	+ # Define the flags.
	559	+ try:
	560	+ opts, args = getopt.getopt(argv, 'hd', ['help', 'debug',
	561	+ 'swap_left_right_in_url',
	562	+ 'swap_ltr_rtl_in_url'])
	563	+ except getopt.GetoptError:
	564	+ usage()
	565	+ sys.exit(2)
	566	+
	567	+ # Parse and set the flags.
	568	+ setflags(opts)
	569	+
	570	+ # Call the main routine with all our functionality.
	571	+ fixed_lines = ChangeLeftToRightToLeft(sys.stdin.readlines())
	572	+ sys.stdout.write(''.join(fixed_lines))
	573	+
	574	+if __name__ == '__main__':
	575	+ main(sys.argv[1:])
Property changes on: trunk/phase3/maintenance/cssjanus/cssjanus.py
___________________________________________________________________
Added: svn:eol-style
1	576	+ native
Added: svn:executable
2	577	+ *
Index: trunk/phase3/maintenance/cssjanus/LICENSE
—	—	@@ -0,0 +1,202 @@
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Property changes on: trunk/phase3/maintenance/cssjanus/LICENSE
___________________________________________________________________
Added: svn:eol-style
1	204	+ native
Index: trunk/phase3/maintenance/cssjanus/COPYING
—	—	@@ -0,0 +1,13 @@
	2	+ Copyright 2008 Google Inc.
	3	+
	4	+ Licensed under the Apache License, Version 2.0 (the "License");
	5	+ you may not use this file except in compliance with the License.
	6	+ You may obtain a copy of the License at
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	9	+
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	12	+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	13	+ See the License for the specific language governing permissions and
	14	+ limitations under the License.
Property changes on: trunk/phase3/maintenance/cssjanus/COPYING
___________________________________________________________________
Added: svn:eol-style
1	15	+ native
Index: trunk/phase3/maintenance/cssjanus/csslex.py
—	—	@@ -0,0 +1,114 @@
	2	+#!/usr/bin/python
	3	+#
	4	+# Copyright 2007 Google Inc. All Rights Reserved.
	5	+
	6	+"""CSS Lexical Grammar rules.
	7	+
	8	+CSS lexical grammar from http://www.w3.org/TR/CSS21/grammar.html
	9	+"""
	10	+
	11	+__author__ = ['elsigh@google.com (Lindsey Simon)',
	12	+ 'msamuel@google.com (Mike Samuel)']
	13	+
	14	+# public symbols
	15	+__all__ = [ "NEWLINE", "HEX", "NON_ASCII", "UNICODE", "ESCAPE", "NMSTART", "NMCHAR", "STRING1", "STRING2", "IDENT", "NAME", "HASH", "NUM", "STRING", "URL", "SPACE", "WHITESPACE", "COMMENT", "QUANTITY", "PUNC" ]
	16	+
	17	+# The comments below are mostly copied verbatim from the grammar.
	18	+
	19	+# "@import" {return IMPORT_SYM;}
	20	+# "@page" {return PAGE_SYM;}
	21	+# "@media" {return MEDIA_SYM;}
	22	+# "@charset" {return CHARSET_SYM;}
	23	+KEYWORD = r'(?:\@(?:import\|page\|media\|charset))'
	24	+
	25	+# nl \n\|\r\n\|\r\|\f ; a newline
	26	+NEWLINE = r'\n\|\r\n\|\r\|\f'
	27	+
	28	+# h [0-9a-f] ; a hexadecimal digit
	29	+HEX = r'[0-9a-f]'
	30	+
	31	+# nonascii [\200-\377]
	32	+NON_ASCII = r'[\200-\377]'
	33	+
	34	+# unicode \\{h}{1,6}(\r\n\|[ \t\r\n\f])?
	35	+UNICODE = r'(?:(?:\\' + HEX + r'{1,6})(?:\r\n\|[ \t\r\n\f])?)'
	36	+
	37	+# escape {unicode}\|\\[^\r\n\f0-9a-f]
	38	+ESCAPE = r'(?:' + UNICODE + r'\|\\[^\r\n\f0-9a-f])'
	39	+
	40	+# nmstart [_a-z]\|{nonascii}\|{escape}
	41	+NMSTART = r'(?:[_a-z]\|' + NON_ASCII + r'\|' + ESCAPE + r')'
	42	+
	43	+# nmchar [_a-z0-9-]\|{nonascii}\|{escape}
	44	+NMCHAR = r'(?:[_a-z0-9-]\|' + NON_ASCII + r'\|' + ESCAPE + r')'
	45	+
	46	+# ident -?{nmstart}{nmchar}*
	47	+IDENT = r'-?' + NMSTART + NMCHAR + '*'
	48	+
	49	+# name {nmchar}+
	50	+NAME = NMCHAR + r'+'
	51	+
	52	+# hash
	53	+HASH = r'#' + NAME
	54	+
	55	+# string1 \"([^\n\r\f\\"]\|\\{nl}\|{escape})*\" ; "string"
	56	+STRING1 = r'"(?:[^\"\\]\|\\.)*"'
	57	+
	58	+# string2 \'([^\n\r\f\\']\|\\{nl}\|{escape})*\' ; 'string'
	59	+STRING2 = r"'(?:[^\'\\]\|\\.)*'"
	60	+
	61	+# string {string1}\|{string2}
	62	+STRING = '(?:' + STRING1 + r'\|' + STRING2 + ')'
	63	+
	64	+# num [0-9]+\|[0-9]*"."[0-9]+
	65	+NUM = r'(?:[0-9]*\.[0-9]+\|[0-9]+)'
	66	+
	67	+# s [ \t\r\n\f]
	68	+SPACE = r'[ \t\r\n\f]'
	69	+
	70	+# w {s}*
	71	+WHITESPACE = '(?:' + SPACE + r'*)'
	72	+
	73	+# url special chars
	74	+URL_SPECIAL_CHARS = r'[!#$%&*-~]'
	75	+
	76	+# url chars ({url_special_chars}\|{nonascii}\|{escape})*
	77	+URL_CHARS = r'(?:%s\|%s\|%s)*' % (URL_SPECIAL_CHARS, NON_ASCII, ESCAPE)
	78	+
	79	+# url
	80	+URL = r'url$%s(%s\|%s)%s$' % (WHITESPACE, STRING, URL_CHARS, WHITESPACE)
	81	+
	82	+# comments
	83	+# see http://www.w3.org/TR/CSS21/grammar.html
	84	+COMMENT = r'/\[^]\+([^/][^]\+)*/'
	85	+
	86	+# {E}{M} {return EMS;}
	87	+# {E}{X} {return EXS;}
	88	+# {P}{X} {return LENGTH;}
	89	+# {C}{M} {return LENGTH;}
	90	+# {M}{M} {return LENGTH;}
	91	+# {I}{N} {return LENGTH;}
	92	+# {P}{T} {return LENGTH;}
	93	+# {P}{C} {return LENGTH;}
	94	+# {D}{E}{G} {return ANGLE;}
	95	+# {R}{A}{D} {return ANGLE;}
	96	+# {G}{R}{A}{D} {return ANGLE;}
	97	+# {M}{S} {return TIME;}
	98	+# {S} {return TIME;}
	99	+# {H}{Z} {return FREQ;}
	100	+# {K}{H}{Z} {return FREQ;}
	101	+# % {return PERCENTAGE;}
	102	+UNIT = r'(?:em\|ex\|px\|cm\|mm\|in\|pt\|pc\|deg\|rad\|grad\|ms\|s\|hz\|khz\|%)'
	103	+
	104	+# {num}{UNIT\|IDENT} {return NUMBER;}
	105	+QUANTITY = '%s(?:%s%s\|%s)?' % (NUM, WHITESPACE, UNIT, IDENT)
	106	+
	107	+# "<!--" {return CDO;}
	108	+# "-->" {return CDC;}
	109	+# "~=" {return INCLUDES;}
	110	+# "\|=" {return DASHMATCH;}
	111	+# {w}"{" {return LBRACE;}
	112	+# {w}"+" {return PLUS;}
	113	+# {w}">" {return GREATER;}
	114	+# {w}"," {return COMMA;}
	115	+PUNC = r'<!--\|-->\|~=\|\\|=\|[\{\+>,:;]'
Property changes on: trunk/phase3/maintenance/cssjanus/csslex.py
___________________________________________________________________
Added: svn:eol-style
1	116	+ native
Added: svn:executable
2	117	+ *
Index: trunk/phase3/maintenance/cssjanus/README
—	—	@@ -0,0 +1,91 @@
	2	+=CSSJanus=
	3	+
	4	+_Flips CSS from LTR to an RTL orienation and vice-versa_
	5	+
	6	+Author: `Lindsey Simon <elsigh@google.com>`
	7	+
	8	+==Introduction==
	9	+
	10	+CSSJanus is CSS parser utility designed to aid the conversion of a website's
	11	+layout from left-to-right(LTR) to right-to-left(RTL). The script was born out of
	12	+a need to convert CSS for RTL languages when tables are not being used for layout (since tables will automatically reorder TD's in RTL).
	13	+CSSJanus will change most of the obvious CSS property names and their values as
	14	+well as some not-so-obvious ones (cursor, background-position %, etc...).
	15	+The script is designed to offer flexibility to account for cases when you do
	16	+not want to change certain rules which exist to account for bidirectional text
	17	+display bugs, as well as situations where you may or may not want to flip annotations inside of the background url string.
	18	+Note that you can disable CSSJanus from running on an entire class or any
	19	+rule within a class by prepending a /* @noflip */ comment before the rule(s)
	20	+you want CSSJanus to ignore.
	21	+
	22	+CSSJanus itself is not always enough to make a website that works in a LTR
	23	+language context work in a RTL language all the way, but it is a start.
	24	+
	25	+==Getting the code==
	26	+
	27	+View the trunk at:
	28	+
	29	+ http://cssjanus.googlecode.com/svn/trunk/
	30	+
	31	+Check out the latest development version anonymously with:
	32	+
	33	+{{{
	34	+ $ svn checkout http://cssjanus.googlecode.com/svn/trunk/ cssjanus
	35	+}}}
	36	+
	37	+==Using==
	38	+
	39	+Usage:
	40	+ ./cssjanus.py < file.css > file-rtl.css
	41	+Flags:
	42	+ --swap_left_right_in_url: Fixes "left"/"right" string within urls.
	43	+ Ex: ./cssjanus.py --swap_left_right_in_url < file.css > file_rtl.css
	44	+ --swap_ltr_rtl_in_url: Fixes "ltr"/"rtl" string within urls.
	45	+ Ex: ./cssjanus.py --swap_ltr_rtl_in_url < file.css > file_rtl.css
	46	+
	47	+If you'd like to make use of the webapp version of cssjanus, you'll need to
	48	+download the Google App Engine SDK
	49	+ http://code.google.com/appengine/downloads.html
	50	+and also drop a "django" directory into this directory, with the latest svn
	51	+from django. You should be good to go with that setup. Please let me know
	52	+otherwise.
	53	+
	54	+==Bugs, Patches==
	55	+
	56	+Patches and bug reports are welcome, just please keep the style
	57	+consistent with the original source. If you find a bug, please include a diff
	58	+of cssjanus_test.py with the bug included as a new unit test which fails. It
	59	+will make understanding and fixing the bug easier.
	60	+
	61	+==Todo==
	62	+
	63	+* Include some helpers for some typical bidi text solutions?
	64	+* Aural CSS (azimuth) swapping?
	65	+
	66	+==Contributors==
	67	+
	68	+Additional thanks to Mike Samuel for his work on csslex.py, Andy Perelson for
	69	+his help coding and reviewing, Stephen Zabel for his help with i18n and my sanity,
	70	+and to Eric Meyer for his thoughtful input.
	71	+Thanks to Junyu Wang for the Chinese translation.
	72	+Thanks to Masashi Kawashima for the Japanese translation.
	73	+Thanks to Taaryk Taar and Tariq Al-Omaireeni for an updated Arabic translation.
	74	+Thanks to Jens Meiert for the German translation.
	75	+
	76	+==License==
	77	+
	78	+{{{
	79	+ Copyright 2008 Google Inc. All Rights Reserved.
	80	+
	81	+ Licensed under the Apache License, Version 2.0 (the 'License');
	82	+ you may not use this file except in compliance with the License.
	83	+ You may obtain a copy of the License at
	84	+
	85	+ http://www.apache.org/licenses/LICENSE-2.0
	86	+
	87	+ Unless required by applicable law or agreed to in writing, software
	88	+ distributed under the License is distributed on an 'AS IS' BASIS,
	89	+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	90	+ See the License for the specific language governing permissions and
	91	+ limitations under the License.
	92	+}}}
Property changes on: trunk/phase3/maintenance/cssjanus/README
___________________________________________________________________
Added: svn:eol-style
1	93	+ native
Index: trunk/phase3/skins/vector/Makefile
—	—	@@ -4,12 +4,12 @@
5	5
6	6	all: main-rtl.css
7	7
8		~~-main-rtl.css: main-ltr.css cssjanus/cssjanus.py~~
9		~~- python cssjanus/cssjanus.py --swap_ltr_rtl_in_url < main-ltr.css > main-rtl.css~~
	8	+main-rtl.css: main-ltr.css ../../maintenance/cssjanus/cssjanus.py
	9	+ python ../../maintenance/cssjanus/cssjanus.py --swap_ltr_rtl_in_url < main-ltr.css > main-rtl.css
10	10
11	11	# SVN version is broken; checking in our own.
12		~~-#cssjanus/cssjanus.py:~~
13		~~-# svn co http://cssjanus.googlecode.com/svn/trunk cssjanus~~
	12	+#../../maintenance/cssjanus/cssjanus.py:
	13	+# svn co http://cssjanus.googlecode.com/svn/trunk ../maintenance/cssjanus
14	14
15	15	#distclean: clean
16	16	# rm -rf cssjanus

Status & tagging log

08:34, 19 July 2010 Catrope (talk | contribs) changed the status of r69522 [removed: new added: ok]