[apple/javascriptcore.git] / inspector / scripts / cssmin.py

#!/usr/bin/python

# Copyright (C) 2013 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.

import re

def cssminify(css):
    rules = (
        (r"\/\*.*?\*\/", ""),          # delete comments
        (r"\n", ""),                   # delete new lines
        (r"\s+", " "),                 # change multiple spaces to one space
        (r"\s?([;:{},+>])\s?", r"\1"), # delete space where it is not needed
        (r";}", "}")                   # change ';}' to '}' because the semicolon is not needed
    )

    css = css.replace("\r\n", "\n")
    for rule in rules:
        css = re.compile(rule[0], re.MULTILINE | re.UNICODE | re.DOTALL).sub(rule[1], css)
    return css

if __name__ == "__main__":
    import sys
    sys.stdout.write(cssminify(sys.stdin.read()))
Commit	Line	Data
81345200 A	1	#!/usr/bin/python
	2
	3	# Copyright (C) 2013 Apple Inc. All rights reserved.
	4	#
	5	# Redistribution and use in source and binary forms, with or without
	6	# modification, are permitted provided that the following conditions
	7	# are met:
	8	# 1. Redistributions of source code must retain the above copyright
	9	# notice, this list of conditions and the following disclaimer.
	10	# 2. Redistributions in binary form must reproduce the above copyright
	11	# notice, this list of conditions and the following disclaimer in the
	12	# documentation and/or other materials provided with the distribution.
	13	#
	14	# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
	15	# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	16	# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	17	# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
	18	# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	19	# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	20	# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	21	# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	22	# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	23	# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
	24	# THE POSSIBILITY OF SUCH DAMAGE.
	25
	26	import re
	27
	28	def cssminify(css):
	29	rules = (
	30	(r"\/\.?\*\/", ""), # delete comments
	31	(r"\n", ""), # delete new lines
	32	(r"\s+", " "), # change multiple spaces to one space
	33	(r"\s?([;:{},+>])\s?", r"\1"), # delete space where it is not needed
	34	(r";}", "}") # change ';}' to '}' because the semicolon is not needed
	35	)
	36
	37	css = css.replace("\r\n", "\n")
	38	for rule in rules:
	39	css = re.compile(rule[0], re.MULTILINE \| re.UNICODE \| re.DOTALL).sub(rule[1], css)
	40	return css
	41
	42	if __name__ == "__main__":
	43	import sys
	44	sys.stdout.write(cssminify(sys.stdin.read()))