#! /usr/bin/python
from optparse import OptionParser
import os.path
import sys
parser = OptionParser()
parser.add_option("-L", "--line", dest="stripLine",
action="store_true", default=False,
help="strip single-line comments //...\\n")
parser.add_option("-C", "--cstyle", dest="stripCStyle",
action="store_true", default=False,
help="strip C-style comments /*...*/")
parser.add_option("-J", "--javadoc", dest="stripJavadoc",
action="store_true", default=False,
help="strip Javadoc comments /**...*/")
parser.add_option("-H", "--headerdoc", dest="stripHeaderDoc",
action="store_true", default=False,
help="strip HeaderDoc comments /*!...*/")
parser.add_option("--input", dest="inputFile", default="",
help="file from which to read input")
(options, args) = parser.parse_args()
error = False
if len(args) != 0:
print "ERROR: Invalid non-option arguments:"
for arg in args:
print " "+arg
error = True
if not options.stripLine and not options.stripCStyle and \
not options.stripJavadoc and not options.stripHeaderDoc:
print "ERROR: Please specify at least one comment style to strip."
error = True
if options.inputFile == "":
print "ERROR: Must specify input file to process using '--input'."
error = True
elif os.path.exists(options.inputFile) == False:
print "ERROR: Specified input file does not exist!"
error = True
else:
file = open(options.inputFile, "r")
if error == True:
sys.exit()
(SOURCE, STRING_LITERAL, CHAR_LITERAL, SLASH, SLASH_STAR, COMMENT_LINE,
COMMENT_CSTYLE, COMMENT_JAVADOC, COMMENT_HEADERDOC) = range(9) #state constants
state = SOURCE
thisChar = ''
while (1):
prevChar = thisChar
thisChar = file.read(1)
if not thisChar:
break
if state == SOURCE:
if thisChar == '/':
state = SLASH
else:
if thisChar == '"':
state = STRING_LITERAL
elif thisChar == '\'':
state = CHAR_LITERAL
sys.stdout.write(thisChar)
elif state == STRING_LITERAL:
if thisChar == '"' and prevChar != '\\':
state = SOURCE
sys.stdout.write(thisChar)
elif state == CHAR_LITERAL:
if thisChar == '\'' and prevChar != '\\':
state = SOURCE
sys.stdout.write(thisChar)
elif state == SLASH:
if thisChar == '*':
state = SLASH_STAR
elif thisChar == '/':
if not options.stripLine:
sys.stdout.write("//")
state = COMMENT_LINE
else:
sys.stdout.write("/")
sys.stdout.write(thisChar)
state = SOURCE
elif state == SLASH_STAR:
if thisChar == '*':
if not options.stripJavadoc:
sys.stdout.write("/**")
state = COMMENT_JAVADOC
elif thisChar == '!':
if not options.stripHeaderDoc:
sys.stdout.write("/*!")
state = COMMENT_HEADERDOC
else:
if not options.stripCStyle:
sys.stdout.write("/*")
sys.stdout.write(thisChar)
state = COMMENT_CSTYLE
thisChar = 0
# Don't treat "/*/" as a valid block comment
elif state == COMMENT_LINE:
if thisChar == '\n':
sys.stdout.write("\n")
state = SOURCE
if not options.stripLine:
sys.stdout.write(thisChar)
elif state == COMMENT_CSTYLE:
if not options.stripCStyle:
sys.stdout.write(thisChar)
if prevChar == '*' and thisChar == '/':
state = SOURCE
elif state == COMMENT_JAVADOC:
if not options.stripJavadoc:
sys.stdout.write(thisChar)
if prevChar == '*' and thisChar == '/':
state = SOURCE
elif state == COMMENT_HEADERDOC:
if not options.stripHeaderDoc:
sys.stdout.write(thisChar)
if prevChar == '*' and thisChar == '/':
state = SOURCE
file.close()
