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- Add -f flag to rm on make clean. - Use old jsmin - the new one seems to be broken.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,218 @@ | ||
| #!/usr/bin/python | ||
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| # This code is original from jsmin by Douglas Crockford, it was translated to | ||
| # Python by Baruch Even. The original code had the following copyright and | ||
| # license. | ||
| # | ||
| # /* jsmin.c | ||
| # 2007-05-22 | ||
| # | ||
| # Copyright (c) 2002 Douglas Crockford (www.crockford.com) | ||
| # | ||
| # Permission is hereby granted, free of charge, to any person obtaining a copy of | ||
| # this software and associated documentation files (the "Software"), to deal in | ||
| # the Software without restriction, including without limitation the rights to | ||
| # use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies | ||
| # of the Software, and to permit persons to whom the Software is furnished to do | ||
| # so, subject to the following conditions: | ||
| # | ||
| # The above copyright notice and this permission notice shall be included in all | ||
| # copies or substantial portions of the Software. | ||
| # | ||
| # The Software shall be used for Good, not Evil. | ||
| # | ||
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| # SOFTWARE. | ||
| # */ | ||
|
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| from StringIO import StringIO | ||
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||
| def jsmin(js): | ||
| ins = StringIO(js) | ||
| outs = StringIO() | ||
| JavascriptMinify().minify(ins, outs) | ||
| str = outs.getvalue() | ||
| if len(str) > 0 and str[0] == '\n': | ||
| str = str[1:] | ||
| return str | ||
|
|
||
| def isAlphanum(c): | ||
| """return true if the character is a letter, digit, underscore, | ||
| dollar sign, or non-ASCII character. | ||
| """ | ||
| return ((c >= 'a' and c <= 'z') or (c >= '0' and c <= '9') or | ||
| (c >= 'A' and c <= 'Z') or c == '_' or c == '$' or c == '\\' or (c is not None and ord(c) > 126)); | ||
|
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| class UnterminatedComment(Exception): | ||
| pass | ||
|
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| class UnterminatedStringLiteral(Exception): | ||
| pass | ||
|
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||
| class UnterminatedRegularExpression(Exception): | ||
| pass | ||
|
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| class JavascriptMinify(object): | ||
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| def _outA(self): | ||
| self.outstream.write(self.theA) | ||
| def _outB(self): | ||
| self.outstream.write(self.theB) | ||
|
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||
| def _get(self): | ||
| """return the next character from stdin. Watch out for lookahead. If | ||
| the character is a control character, translate it to a space or | ||
| linefeed. | ||
| """ | ||
| c = self.theLookahead | ||
| self.theLookahead = None | ||
| if c == None: | ||
| c = self.instream.read(1) | ||
| if c >= ' ' or c == '\n': | ||
| return c | ||
| if c == '': # EOF | ||
| return '\000' | ||
| if c == '\r': | ||
| return '\n' | ||
| return ' ' | ||
|
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||
| def _peek(self): | ||
| self.theLookahead = self._get() | ||
| return self.theLookahead | ||
|
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| def _next(self): | ||
| """get the next character, excluding comments. peek() is used to see | ||
| if an unescaped '/' is followed by a '/' or '*'. | ||
| """ | ||
| c = self._get() | ||
| if c == '/' and self.theA != '\\': | ||
| p = self._peek() | ||
| if p == '/': | ||
| c = self._get() | ||
| while c > '\n': | ||
| c = self._get() | ||
| return c | ||
| if p == '*': | ||
| c = self._get() | ||
| while 1: | ||
| c = self._get() | ||
| if c == '*': | ||
| if self._peek() == '/': | ||
| self._get() | ||
| return ' ' | ||
| if c == '\000': | ||
| raise UnterminatedComment() | ||
|
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| return c | ||
|
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||
| def _action(self, action): | ||
| """do something! What you do is determined by the argument: | ||
| 1 Output A. Copy B to A. Get the next B. | ||
| 2 Copy B to A. Get the next B. (Delete A). | ||
| 3 Get the next B. (Delete B). | ||
| action treats a string as a single character. Wow! | ||
| action recognizes a regular expression if it is preceded by ( or , or =. | ||
| """ | ||
| if action <= 1: | ||
| self._outA() | ||
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||
| if action <= 2: | ||
| self.theA = self.theB | ||
| if self.theA == "'" or self.theA == '"': | ||
| while 1: | ||
| self._outA() | ||
| self.theA = self._get() | ||
| if self.theA == self.theB: | ||
| break | ||
| if self.theA <= '\n': | ||
| raise UnterminatedStringLiteral() | ||
| if self.theA == '\\': | ||
| self._outA() | ||
| self.theA = self._get() | ||
|
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| if action <= 3: | ||
| self.theB = self._next() | ||
| if self.theB == '/' and (self.theA == '(' or self.theA == ',' or | ||
| self.theA == '=' or self.theA == ':' or | ||
| self.theA == '[' or self.theA == '?' or | ||
| self.theA == '!' or self.theA == '&' or | ||
| self.theA == '|' or self.theA == ';' or | ||
| self.theA == '{' or self.theA == '}' or | ||
| self.theA == '\n'): | ||
| self._outA() | ||
| self._outB() | ||
| while 1: | ||
| self.theA = self._get() | ||
| if self.theA == '/': | ||
| break | ||
| elif self.theA == '\\': | ||
| self._outA() | ||
| self.theA = self._get() | ||
| elif self.theA <= '\n': | ||
| raise UnterminatedRegularExpression() | ||
| self._outA() | ||
| self.theB = self._next() | ||
|
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| def _jsmin(self): | ||
| """Copy the input to the output, deleting the characters which are | ||
| insignificant to JavaScript. Comments will be removed. Tabs will be | ||
| replaced with spaces. Carriage returns will be replaced with linefeeds. | ||
| Most spaces and linefeeds will be removed. | ||
| """ | ||
| self.theA = '\n' | ||
| self._action(3) | ||
|
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||
| while self.theA != '\000': | ||
| if self.theA == ' ': | ||
| if isAlphanum(self.theB): | ||
| self._action(1) | ||
| else: | ||
| self._action(2) | ||
| elif self.theA == '\n': | ||
| if self.theB in ['{', '[', '(', '+', '-']: | ||
| self._action(1) | ||
| elif self.theB == ' ': | ||
| self._action(3) | ||
| else: | ||
| if isAlphanum(self.theB): | ||
| self._action(1) | ||
| else: | ||
| self._action(2) | ||
| else: | ||
| if self.theB == ' ': | ||
| if isAlphanum(self.theA): | ||
| self._action(1) | ||
| else: | ||
| self._action(3) | ||
| elif self.theB == '\n': | ||
| if self.theA in ['}', ']', ')', '+', '-', '"', '\'']: | ||
| self._action(1) | ||
| else: | ||
| if isAlphanum(self.theA): | ||
| self._action(1) | ||
| else: | ||
| self._action(3) | ||
| else: | ||
| self._action(1) | ||
|
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||
| def minify(self, instream, outstream): | ||
| self.instream = instream | ||
| self.outstream = outstream | ||
| self.theA = '\n' | ||
| self.theB = None | ||
| self.theLookahead = None | ||
|
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| self._jsmin() | ||
| self.instream.close() | ||
|
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| if __name__ == '__main__': | ||
| import sys | ||
| jsm = JavascriptMinify() | ||
| jsm.minify(sys.stdin, sys.stdout) |