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#!/usr/bin/env python
import sys, string, re, optparse
import config, filetool, comment
R_WHITESPACE = re.compile(r"(\s+)")
R_NONWHITESPACE = re.compile("\S+")
R_NUMBER = re.compile("^[0-9]+")
R_NEWLINE = re.compile(r"(\n)")
# Ideas from: http://www.regular-expressions.info/examplesprogrammer.html
# Multicomment RegExp inspired by: http://ostermiller.org/findcomment.html
# builds regexp strings
S_STRING_A = "'[^'\\\n]*(\\.|\n[^'\\\n]*)*'"
S_STRING_B = '"[^"\\\n]*(\\.|\n[^"\\\n]*)*"'
S_FLOAT = "([0-9]+\.[0-9]+)"
S_OPERATORS_2 = r"(==)|(!=)|(\+\+)|(--)|(-=)|(\+=)|(\*=)|(/=)|(%=)|(&&)|(\|\|)|(\>=)|(\<=)|(>>)|(<<)|(\^\|)|(\|=)|(\^=)|(&=)|(::)|(\.\.)"
S_OPERATORS_3 = r"(===)|(!==)|(\<\<=)|(\>\>=)|(\>\>\>)"
S_OPERATORS_4 = r"(\>\>\>=)"
S_OPERATORS = "(" + S_OPERATORS_4 + "|" + S_OPERATORS_3 + "|" + S_OPERATORS_2 + ")"
S_REGEXP = "(\/[^\t\n\r\f\v\/]+?\/[mgi]*)"
S_REGEXP_A = "\.(match|search|split)\s*\(\s*\(*\s*" + S_REGEXP + "\s*\)*\s*\)"
S_REGEXP_B = "\.(replace)\s*\(\s*\(*\s*" + S_REGEXP + "\s*\)*\s*?,?"
S_REGEXP_C = "\s*\(*\s*" + S_REGEXP + "\)*\.(test|exec)\s*\(\s*"
S_REGEXP_D = "(:|=|\?)\s*\(*\s*" + S_REGEXP + "\s*\)*"
S_REGEXP_ALL = S_REGEXP_A + "|" + S_REGEXP_B + "|" + S_REGEXP_C + "|" + S_REGEXP_D
S_ALL = "(" + comment.S_BLOCK_COMMENT + "|" + comment.S_INLINE_COMMENT + "|" + S_STRING_A + "|" + S_STRING_B + "|" + S_REGEXP_ALL + "|" + S_FLOAT + "|" + S_OPERATORS + ")"
# compile regexp strings
R_STRING_A = re.compile("^" + S_STRING_A + "$")
R_STRING_B = re.compile("^" + S_STRING_B + "$")
R_FLOAT = re.compile("^" + S_FLOAT + "$")
R_OPERATORS = re.compile(S_OPERATORS)
R_REGEXP = re.compile(S_REGEXP)
R_REGEXP_A = re.compile(S_REGEXP_A)
R_REGEXP_B = re.compile(S_REGEXP_B)
R_REGEXP_C = re.compile(S_REGEXP_C)
R_REGEXP_D = re.compile(S_REGEXP_D)
R_ALL = re.compile(S_ALL)
parseLine = 1
parseColumn = 1
parseUniqueId = ""
def protectEscape(s):
return s.replace("\\\\", "__$ESCAPE0$__").replace("\\\"", "__$ESCAPE1$__").replace("\\\'", "__$ESCAPE2__").replace("\/", "__$ESCAPE3__").replace("\!", "__$ESCAPE4__")
def recoverEscape(s):
return s.replace("__$ESCAPE0$__", "\\\\").replace("__$ESCAPE1$__", "\\\"").replace("__$ESCAPE2__", "\\'").replace("__$ESCAPE3__", "\/").replace("__$ESCAPE4__", "\!")
def parseElement(element):
global parseUniqueId
global parseLine
global parseColumn
if config.JSPROTECTED.has_key(element):
# print "PROTECTED: %s" % PROTECTED[content]
obj = { "type" : "protected", "detail" : config.JSPROTECTED[element], "source" : element, "line" : parseLine, "column" : parseColumn, "id" : parseUniqueId }
elif element in config.JSBUILTIN:
# print "BUILTIN: %s" % content
obj = { "type" : "builtin", "detail" : "", "source" : element, "line" : parseLine, "column" : parseColumn, "id" : parseUniqueId }
elif R_NUMBER.search(element):
# print "NUMBER: %s" % content
obj = { "type" : "number", "detail" : "int", "source" : element, "line" : parseLine, "column" : parseColumn, "id" : parseUniqueId }
elif element.startswith("_"):
# print "PRIVATE NAME: %s" % content
obj = { "type" : "name", "detail" : "private", "source" : element, "line" : parseLine, "column" : parseColumn, "id" : parseUniqueId }
elif len(element) > 0:
# print "PUBLIC NAME: %s" % content
obj = { "type" : "name", "detail" : "public", "source" : element, "line" : parseLine, "column" : parseColumn, "id" : parseUniqueId }
parseColumn += len(element)
return obj
def parsePart(part):
global parseUniqueId
global parseLine
global parseColumn
tokens = []
element = ""
for line in R_NEWLINE.split(part):
if line == "\n":
tokens.append({ "type" : "eol", "source" : "", "detail" : "", "line" : parseLine, "column" : parseColumn, "id" : parseUniqueId })
parseColumn = 1
parseLine += 1
else:
for item in R_WHITESPACE.split(line):
if item == "":
continue
if not R_NONWHITESPACE.search(item):
parseColumn += len(item)
continue
# print "ITEM: '%s'" % item
for char in item:
# work on single character tokens, otherwise concat to a bigger element
if config.JSTOKENS.has_key(char):
# convert existing element
if element != "":
if R_NONWHITESPACE.search(element):
tokens.append(parseElement(element))
element = ""
# add character to token list
tokens.append({ "type" : "token", "detail" : config.JSTOKENS[char], "source" : char, "line" : parseLine, "column" : parseColumn, "id" : parseUniqueId })
parseColumn += 1
else:
element += char
# convert remaining stuff to tokens
if element != "":
if R_NONWHITESPACE.search(element):
tokens.append(parseElement(element))
element = ""
return tokens
def parseFragmentLead(content, fragment, tokens):
pos = content.find(fragment)
if pos > 0:
tokens.extend(parsePart(recoverEscape(content[0:pos])))
return content[pos+len(fragment):]
def hasLeadingContent(tokens):
pos = len(tokens) - 1
while pos > 0:
if tokens[pos]["type"] == "eol":
break
else:
return True
return False
def parseStream(content, uniqueId=""):
# make global variables available
global parseLine
global parseColumn
global parseUniqueId
# reset global stuff
parseColumn = 1
parseLine = 1
parseUniqueId = uniqueId
# prepare storage
tokens = []
content = protectEscape(content)
# print " * searching for patterns..."
all = R_ALL.findall(content)
# print " * structuring..."
for item in all:
fragment = item[0]
# print "Found: '%s'" % fragment
if comment.R_BLOCK_COMMENT.match(fragment):
source = recoverEscape(fragment)
format = comment.getFormat(source)
multiline = comment.isMultiLine(source)
# print "Type:MultiComment"
content = parseFragmentLead(content, fragment, tokens)
atBegin = not hasLeadingContent(tokens)
if re.compile("^\s*\n").search(content):
atEnd = True
else:
atEnd = False
# print "Begin: %s, End: %s" % (atBegin, atEnd)
# Fixing source content
if atBegin:
source = comment.outdent(source, parseColumn - 1)
source = comment.correct(source)
connection = "before"
if atEnd and not atBegin:
connection = "after"
else:
connection = "before"
tokens.append({ "type" : "comment", "detail" : format, "multiline" : multiline, "connection" : connection, "source" : source, "id" : parseUniqueId, "line" : parseLine, "column" : parseColumn, "begin" : atBegin, "end" : atEnd })
parseLine += len(fragment.split("\n")) - 1
elif comment.R_INLINE_COMMENT.match(fragment):
# print "Type:SingleComment"
source = recoverEscape(fragment)
content = parseFragmentLead(content, fragment, tokens)
atBegin = hasLeadingContent(tokens)
atEnd = True
if atBegin:
connection = "after"
else:
connection = "before"
source = comment.correct(source)
tokens.append({ "type" : "comment", "detail" : "inline", "multiline" : False, "connection" : connection, "source" : source, "id" : parseUniqueId, "line" : parseLine, "column" : parseColumn, "begin" : atBegin, "end" : atEnd })
elif R_STRING_A.match(fragment):
# print "Type:StringA: %s" % fragment
content = parseFragmentLead(content, fragment, tokens)
tokens.append({ "type" : "string", "detail" : "singlequotes", "source" : recoverEscape(fragment)[1:-1].replace("\\\n",""), "id" : parseUniqueId, "line" : parseLine, "column" : parseColumn })
elif R_STRING_B.match(fragment):
# print "Type:StringB: %s" % fragment
content = parseFragmentLead(content, fragment, tokens)
tokens.append({ "type" : "string", "detail" : "doublequotes", "source" : recoverEscape(fragment)[1:-1].replace("\\\n",""), "id" : parseUniqueId, "line" : parseLine, "column" : parseColumn })
elif R_FLOAT.match(fragment):
# print "Type:Float: %s" % fragment
content = parseFragmentLead(content, fragment, tokens)
tokens.append({ "type" : "number", "detail" : "float", "source" : fragment, "id" : parseUniqueId, "line" : parseLine, "column" : parseColumn })
elif R_OPERATORS.match(fragment):
# print "Type:Operator: %s" % fragment
content = parseFragmentLead(content, fragment, tokens)
tokens.append({ "type" : "token", "detail" : config.JSTOKENS[fragment], "source" : fragment, "id" : parseUniqueId, "line" : parseLine, "column" : parseColumn })
else:
fragresult = R_REGEXP.search(fragment)
if fragresult:
# print "Type:RegExp: %s" % fragresult.group(0)
if R_REGEXP_A.match(fragment) or R_REGEXP_B.match(fragment) or R_REGEXP_C.match(fragment) or R_REGEXP_D.match(fragment):
content = parseFragmentLead(content, fragresult.group(0), tokens)
tokens.append({ "type" : "regexp", "detail" : "", "source" : recoverEscape(fragresult.group(0)), "id" : parseUniqueId, "line" : parseLine, "column" : parseColumn })
else:
print "Bad regular expression: %s" % fragresult.group(0)
else:
print "Type:None!"
tokens.extend(parsePart(recoverEscape(content)))
tokens.append({ "type" : "eof", "source" : "", "detail" : "", "id" : parseUniqueId, "line" : parseLine, "column" : parseColumn })
return tokens
def parseFile(fileName, uniqueId="", encoding="utf-8"):
return parseStream(filetool.read(fileName, encoding), uniqueId)
def convertTokensToString(tokens):
tokenizedString = ""
for token in tokens:
tokenizedString += "%s%s" % (token, "\n")
return tokenizedString
def main():
parser = optparse.OptionParser()
parser.add_option("-w", "--write", action="store_true", dest="write", default=False, help="Writes file to incoming fileName + EXTENSION.")
parser.add_option("-e", "--extension", dest="extension", metavar="EXTENSION", help="The EXTENSION to use", default=".tokenized")
parser.add_option("--encoding", dest="encoding", default="utf-8", metavar="ENCODING", help="Defines the encoding expected for input files.")
(options, args) = parser.parse_args()
if len(args) == 0:
print "Needs one or more arguments (files) to tokenize!"
sys.exit(1)
for fileName in args:
if options.write:
print "Compiling %s => %s%s" % (fileName, fileName, options.extension)
else:
print "Compiling %s => stdout" % fileName
tokenString = convertTokensToString(parseFile(fileName, "", options.encoding))
if options.write:
filetool.save(fileName + options.extension, tokenString, options.encoding)
else:
try:
print tokenString
except UnicodeEncodeError:
print " * Could not encode result to ascii. Use '-w' instead."
sys.exit(1)
if __name__ == '__main__':
try:
main()
except KeyboardInterrupt:
print
print " * Keyboard Interrupt"
sys.exit(1)
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