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Diffstat (limited to 'misc/openlayers/tools/jsmin.py')
| -rwxr-xr-x | misc/openlayers/tools/jsmin.py | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/misc/openlayers/tools/jsmin.py b/misc/openlayers/tools/jsmin.py deleted file mode 100755 index d188790..0000000 --- a/misc/openlayers/tools/jsmin.py +++ /dev/null @@ -1,216 +0,0 @@ -#!/usr/bin/python - -# 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 -# 2007-01-08 -# -# 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. -# */ - -from StringIO import StringIO - -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)); - -class UnterminatedComment(Exception): - pass - -class UnterminatedStringLiteral(Exception): - pass - -class UnterminatedRegularExpression(Exception): - pass - -class JavascriptMinify(object): - - def _outA(self): - self.outstream.write(self.theA) - def _outB(self): - self.outstream.write(self.theB) - - 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 ' ' - - def _peek(self): - self.theLookahead = self._get() - return self.theLookahead - - def _next(self): - """get the next character, excluding comments. peek() is used to see - if a '/' is followed by a '/' or '*'. - """ - c = self._get() - if c == '/': - 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() - - return c - - 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() - - 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() - - - 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 == '|'): - 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() - - - 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) - - 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) - - def minify(self, instream, outstream): - self.instream = instream - self.outstream = outstream - self.theA = None - self.thaB = None - self.theLookahead = None - - self._jsmin() - self.instream.close() - -if __name__ == '__main__': - import sys - jsm = JavascriptMinify() - jsm.minify(sys.stdin, sys.stdout) |