Import python-jsmin_2.0.9.orig.tar.gz

3 files changed, 560 insertions, 0 deletions

diff --git a/jsmin/__init__.py b/jsmin/__init__.py
new file mode 100644
index 0000000..23bed60
--- /dev/null
+++ b/jsmin/__init__.py
@@ -0,0 +1,233 @@
+# This code is original from jsmin by Douglas Crockford, it was translated to
+# Python by Baruch Even. It was rewritten by Dave St.Germain for speed.
+#
+# The MIT License (MIT)
+# 
+# Copyright (c) 2013 Dave St.Germain
+# 
+# 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 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.
+
+
+import sys
+is_3 = sys.version_info >= (3, 0)
+if is_3:
+    import io
+else:
+    import StringIO
+    try:
+        import cStringIO
+    except ImportError:
+        cStringIO = None
+
+
+__all__ = ['jsmin', 'JavascriptMinify']
+__version__ = '2.0.9'
+
+
+def jsmin(js):
+    """
+    returns a minified version of the javascript string
+    """
+    if not is_3:        
+        if cStringIO and not isinstance(js, unicode):
+            # strings can use cStringIO for a 3x performance
+            # improvement, but unicode (in python2) cannot
+            klass = cStringIO.StringIO
+        else:
+            klass = StringIO.StringIO
+    else:
+        klass = io.StringIO
+    ins = klass(js)
+    outs = klass()
+    JavascriptMinify(ins, outs).minify()
+    return outs.getvalue()
+
+
+class JavascriptMinify(object):
+    """
+    Minify an input stream of javascript, writing
+    to an output stream
+    """
+
+    def __init__(self, instream=None, outstream=None):
+        self.ins = instream
+        self.outs = outstream
+
+    def minify(self, instream=None, outstream=None):
+        if instream and outstream:
+            self.ins, self.outs = instream, outstream
+        
+        self.is_return = False
+        self.return_buf = ''
+        
+        def write(char):
+            # all of this is to support literal regular expressions.
+            # sigh
+            if char in 'return':
+                self.return_buf += char
+                self.is_return = self.return_buf == 'return'
+            self.outs.write(char)
+            if self.is_return:
+                self.return_buf = ''
+
+        read = self.ins.read
+
+        space_strings = "abcdefghijklmnopqrstuvwxyz"\
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_$\\"
+        starters, enders = '{[(+-', '}])+-"\''
+        newlinestart_strings = starters + space_strings
+        newlineend_strings = enders + space_strings
+        do_newline = False
+        do_space = False
+        escape_slash_count = 0
+        doing_single_comment = False
+        previous_before_comment = ''
+        doing_multi_comment = False
+        in_re = False
+        in_quote = ''
+        quote_buf = []
+        
+        previous = read(1)
+        if previous == '\\':
+            escape_slash_count += 1
+        next1 = read(1)
+        if previous == '/':
+            if next1 == '/':
+                doing_single_comment = True
+            elif next1 == '*':
+                doing_multi_comment = True
+                previous = next1
+                next1 = read(1)
+            else:
+                write(previous)
+        elif not previous:
+            return
+        elif previous >= '!':
+            if previous in "'\"":
+                in_quote = previous
+            write(previous)
+            previous_non_space = previous
+        else:
+            previous_non_space = ' '
+        if not next1:
+            return
+
+        while 1:
+            next2 = read(1)
+            if not next2:
+                last = next1.strip()
+                if not (doing_single_comment or doing_multi_comment)\
+                    and last not in ('', '/'):
+                    if in_quote:
+                        write(''.join(quote_buf))
+                    write(last)
+                break
+            if doing_multi_comment:
+                if next1 == '*' and next2 == '/':
+                    doing_multi_comment = False
+                    next2 = read(1)
+            elif doing_single_comment:
+                if next1 in '\r\n':
+                    doing_single_comment = False
+                    while next2 in '\r\n':
+                        next2 = read(1)
+                        if not next2:
+                            break
+                    if previous_before_comment in ')}]':
+                        do_newline = True
+                    elif previous_before_comment in space_strings:
+                        write('\n')
+            elif in_quote:
+                quote_buf.append(next1)
+
+                if next1 == in_quote:
+                    numslashes = 0
+                    for c in reversed(quote_buf[:-1]):
+                        if c != '\\':
+                            break
+                        else:
+                            numslashes += 1
+                    if numslashes % 2 == 0:
+                        in_quote = ''
+                        write(''.join(quote_buf))
+            elif next1 in '\r\n':
+                if previous_non_space in newlineend_strings \
+                    or previous_non_space > '~':
+                    while 1:
+                        if next2 < '!':
+                            next2 = read(1)
+                            if not next2:
+                                break
+                        else:
+                            if next2 in newlinestart_strings \
+                                or next2 > '~' or next2 == '/':
+                                do_newline = True
+                            break
+            elif next1 < '!' and not in_re:
+                if (previous_non_space in space_strings \
+                    or previous_non_space > '~') \
+                    and (next2 in space_strings or next2 > '~'):
+                    do_space = True
+                elif previous_non_space in '-+' and next2 == previous_non_space:
+                    # protect against + ++ or - -- sequences
+                    do_space = True
+                elif self.is_return and next2 == '/':
+                    # returning a regex...
+                    write(' ')
+            elif next1 == '/':
+                if do_space:
+                    write(' ')
+                if in_re:
+                    if previous != '\\' or (not escape_slash_count % 2) or next2 in 'gimy':
+                        in_re = False
+                    write('/')
+                elif next2 == '/':                    
+                    doing_single_comment = True
+                    previous_before_comment = previous_non_space
+                elif next2 == '*':
+                    doing_multi_comment = True
+                    previous = next1
+                    next1 = next2
+                    next2 = read(1)
+                else:
+                    in_re = previous_non_space in '(,=:[?!&|' or self.is_return # literal regular expression
+                    write('/')
+            else:
+                if do_space:
+                    do_space = False
+                    write(' ')
+                if do_newline:
+                    write('\n')
+                    do_newline = False
+                    
+                write(next1)
+                if not in_re and next1 in "'\"":
+                    in_quote = next1
+                    quote_buf = []
+
+            previous = next1
+            next1 = next2
+
+            if previous >= '!':
+                previous_non_space = previous
+
+            if previous == '\\':
+                escape_slash_count += 1
+            else:
+                escape_slash_count = 0
diff --git a/jsmin/__main__.py b/jsmin/__main__.py
new file mode 100644
index 0000000..58da2e2
--- /dev/null
+++ b/jsmin/__main__.py
@@ -0,0 +1,10 @@
+import sys, os, glob
+from jsmin import JavascriptMinify
+
+for f in sys.argv[1:]:
+    with open(f, 'r') as js:
+        minifier = JavascriptMinify(js, sys.stdout)
+        minifier.minify()
+    sys.stdout.write('\n')
+    
+    
diff --git a/jsmin/test.py b/jsmin/test.py
new file mode 100644
index 0000000..7171a5b
--- /dev/null
+++ b/jsmin/test.py
@@ -0,0 +1,317 @@
+import unittest
+import jsmin
+import sys
+
+class JsTests(unittest.TestCase):
+    def _minify(self, js):
+        return jsmin.jsmin(js)
+
+    def assertEqual(self, thing1, thing2):
+        if thing1 != thing2:
+            print(repr(thing1), repr(thing2))
+            raise AssertionError
+        return True
+    
+    def assertMinified(self, js_input, expected):
+        minified = jsmin.jsmin(js_input)
+        assert minified == expected, "%r != %r" % (minified, expected)
+        
+    def testQuoted(self):
+        js = r'''
+        Object.extend(String, {
+          interpret: function(value) {
+            return value == null ? '' : String(value);
+          },
+          specialChar: {
+            '\b': '\\b',
+            '\t': '\\t',
+            '\n': '\\n',
+            '\f': '\\f',
+            '\r': '\\r',
+            '\\': '\\\\'
+          }
+        });
+
+        '''
+        expected = r"""Object.extend(String,{interpret:function(value){return value==null?'':String(value);},specialChar:{'\b':'\\b','\t':'\\t','\n':'\\n','\f':'\\f','\r':'\\r','\\':'\\\\'}});"""
+        self.assertMinified(js, expected)
+
+    def testSingleComment(self):
+        js = r'''// use native browser JS 1.6 implementation if available
+        if (Object.isFunction(Array.prototype.forEach))
+          Array.prototype._each = Array.prototype.forEach;
+
+        if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
+
+        // hey there
+        function() {// testing comment
+        foo;
+        //something something
+
+        location = 'http://foo.com;';   // goodbye
+        }
+        //bye
+        '''
+        expected = r""" 
+if(Object.isFunction(Array.prototype.forEach))
+Array.prototype._each=Array.prototype.forEach;if(!Array.prototype.indexOf)Array.prototype.indexOf=function(item,i){ function(){ foo; location='http://foo.com;';}"""
+        # print expected
+        self.assertMinified(js, expected)
+    
+    def testEmpty(self):
+        self.assertMinified('', '')
+        self.assertMinified(' ', '')
+        self.assertMinified('\n', '')
+        self.assertMinified('\r\n', '')
+        self.assertMinified('\t', '')
+        
+        
+    def testMultiComment(self):
+        js = r"""
+        function foo() {
+            print('hey');
+        }
+        /*
+        if(this.options.zindex) {
+          this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
+          this.element.style.zIndex = this.options.zindex;
+        }
+        */
+        another thing;
+        """
+        expected = r"""function foo(){print('hey');}
+another thing;"""
+        self.assertMinified(js, expected)
+    
+    def testLeadingComment(self):
+        js = r"""/* here is a comment at the top
+        
+        it ends here */
+        function foo() {
+            alert('crud');
+        }
+        
+        """
+        expected = r"""function foo(){alert('crud');}"""
+        self.assertMinified(js, expected)
+
+    def testBlockCommentStartingWithSlash(self):
+        self.assertMinified('A; /*/ comment */ B', 'A;B')
+
+    def testBlockCommentEndingWithSlash(self):
+        self.assertMinified('A; /* comment /*/ B', 'A;B')
+
+    def testLeadingBlockCommentStartingWithSlash(self):
+        self.assertMinified('/*/ comment */ A', 'A')
+
+    def testLeadingBlockCommentEndingWithSlash(self):
+        self.assertMinified('/* comment /*/ A', 'A')
+
+    def testEmptyBlockComment(self):
+        self.assertMinified('/**/ A', 'A')
+
+    def testBlockCommentMultipleOpen(self):
+        self.assertMinified('/* A /* B */ C', 'C')
+
+    def testJustAComment(self):
+        self.assertMinified('     // a comment', '')
+
+    def test_issue_10(self):
+        js = '''
+        files = [{name: value.replace(/^.*\\\\/, '')}];
+        // comment
+        A
+        '''
+        expected = '''files=[{name:value.replace(/^.*\\\\/,'')}]; A'''
+        self.assertMinified(js, expected)
+
+    def testRe(self):
+        js = r'''  
+        var str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
+        return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
+        });'''
+        expected = r"""var str=this.replace(/\\./g,'@').replace(/"[^"\\\n\r]*"/g,'');return(/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);});"""
+        self.assertMinified(js, expected)
+
+    def testIgnoreComment(self):
+        js = r"""
+        var options_for_droppable = {
+          overlap:     options.overlap,
+          containment: options.containment,
+          tree:        options.tree,
+          hoverclass:  options.hoverclass,
+          onHover:     Sortable.onHover
+        }
+
+        var options_for_tree = {
+          onHover:      Sortable.onEmptyHover,
+          overlap:      options.overlap,
+          containment:  options.containment,
+          hoverclass:   options.hoverclass
+        }
+
+        // fix for gecko engine   
+        Element.cleanWhitespace(element); 
+        """
+        expected = r"""var options_for_droppable={overlap:options.overlap,containment:options.containment,tree:options.tree,hoverclass:options.hoverclass,onHover:Sortable.onHover}
+var options_for_tree={onHover:Sortable.onEmptyHover,overlap:options.overlap,containment:options.containment,hoverclass:options.hoverclass} 
+Element.cleanWhitespace(element);"""
+        self.assertMinified(js, expected)
+
+    def testHairyRe(self):
+        js = r"""
+        inspect: function(useDoubleQuotes) {
+          var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
+            var character = String.specialChar[match[0]];
+            return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
+          });
+          if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
+          return "'" + escapedString.replace(/'/g, '\\\'') + "'";
+        },
+
+        toJSON: function() {
+          return this.inspect(true);
+        },
+
+        unfilterJSON: function(filter) {
+          return this.sub(filter || Prototype.JSONFilter, '#{1}');
+        },
+        """
+        expected = r"""inspect:function(useDoubleQuotes){var escapedString=this.gsub(/[\x00-\x1f\\]/,function(match){var character=String.specialChar[match[0]];return character?character:'\\u00'+match[0].charCodeAt().toPaddedString(2,16);});if(useDoubleQuotes)return'"'+escapedString.replace(/"/g,'\\"')+'"';return"'"+escapedString.replace(/'/g,'\\\'')+"'";},toJSON:function(){return this.inspect(true);},unfilterJSON:function(filter){return this.sub(filter||Prototype.JSONFilter,'#{1}');},"""
+        self.assertMinified(js, expected)
+    
+    def testLiteralRe(self):
+        js = r"""
+        myString.replace(/\\/g, '/');
+        console.log("hi");
+        """
+        expected = r"""myString.replace(/\\/g,'/');console.log("hi");"""
+        self.assertMinified(js, expected)
+        
+        js = r''' return /^data:image\//i.test(url) || 
+        /^(https?|ftp|file|about|chrome|resource):/.test(url);
+        '''
+        expected = r'''return /^data:image\//i.test(url)||/^(https?|ftp|file|about|chrome|resource):/.test(url);'''
+        self.assertMinified(js, expected)
+        
+    def testNoBracesWithComment(self):
+        js = r"""
+        onSuccess: function(transport) {
+            var js = transport.responseText.strip();
+            if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
+              throw 'Server returned an invalid collection representation.';
+            this._collection = eval(js);
+            this.checkForExternalText();
+          }.bind(this),
+          onFailure: this.onFailure
+        });
+        """
+        expected = r"""onSuccess:function(transport){var js=transport.responseText.strip();if(!/^\[.*\]$/.test(js)) 
+throw'Server returned an invalid collection representation.';this._collection=eval(js);this.checkForExternalText();}.bind(this),onFailure:this.onFailure});"""
+        self.assertMinified(js, expected)
+    
+    def testSpaceInRe(self):
+        js = r"""
+        num = num.replace(/ /g,'');
+        """
+        self.assertMinified(js, "num=num.replace(/ /g,'');")
+    
+    def testEmptyString(self):
+        js = r'''
+        function foo('') {
+        
+        }
+        '''
+        self.assertMinified(js, "function foo(''){}")
+    
+    def testDoubleSpace(self):
+        js = r'''
+var  foo    =  "hey";
+        '''
+        self.assertMinified(js, 'var foo="hey";')
+    
+    def testLeadingRegex(self):
+        js = r'/[d]+/g    '
+        self.assertMinified(js, js.strip())
+    
+    def testLeadingString(self):
+        js = r"'a string in the middle of nowhere'; // and a comment"
+        self.assertMinified(js, "'a string in the middle of nowhere';")
+    
+    def testSingleCommentEnd(self):
+        js = r'// a comment\n'
+        self.assertMinified(js, '')
+    
+    def testInputStream(self):
+        try:
+            from StringIO import StringIO
+        except ImportError:
+            from io import StringIO
+            
+        ins = StringIO(r'''
+            function foo('') {
+
+            }
+            ''')
+        outs = StringIO()
+        m = jsmin.JavascriptMinify()
+        m.minify(ins, outs)
+        output = outs.getvalue()
+        assert output == "function foo(''){}"
+    
+    def testUnicode(self):
+        instr = u'\u4000 //foo'
+        expected = u'\u4000'
+        output = jsmin.jsmin(instr)
+        self.assertEqual(output, expected)
+
+    def testCommentBeforeEOF(self):
+        self.assertMinified("//test\r\n", "")
+    
+    def testCommentInObj(self):
+        self.assertMinified("""{ 
+            a: 1,//comment
+            }""", "{a:1,}")
+
+    def testCommentInObj2(self):
+        self.assertMinified("{a: 1//comment\r\n}", "{a:1\n}")
+
+    def testImplicitSemicolon(self):
+        # return \n 1  is equivalent with   return; 1
+        # so best make sure jsmin retains the newline
+        self.assertMinified("return;//comment\r\na", "return;a")
+
+    def testImplicitSemicolon2(self):
+        self.assertMinified("return//comment...\r\na", "return\na")
+    
+    def testSingleComment2(self):
+        self.assertMinified('x.replace(/\//, "_")// slash to underscore',
+                'x.replace(/\//,"_")')
+
+    def testSlashesNearComments(self):
+        original = '''
+        { a: n / 2, }
+        // comment
+        '''
+        expected = '''{a:n/2,}'''
+        self.assertMinified(original, expected)
+    
+    def testReturn(self):
+        original = '''
+        return foo;//comment
+        return bar;'''
+        expected = 'return foo; return bar;'
+        self.assertMinified(original, expected)
+
+    def test_space_plus(self):
+        original = '"s" + ++e + "s"'
+        expected = '"s"+ ++e+"s"'
+        self.assertMinified(original, expected)
+
+    def test_no_final_newline(self):
+        original = '"s"'
+        expected = '"s"'
+        self.assertMinified(original, expected)
+
+if __name__ == '__main__':
+    unittest.main()