#!/usr/bin/python# -*- coding: utf-8 -*-import sysimport reREG_LINE_GPERF = re.compile('#line .+gperf"')REG_HASH_FUNC = re.compile('hash\s*\(register\s+const\s+char\s*\*\s*str,\s*register\s+unsigned\s+int\s+len\s*\)')REG_STR_AT = re.compile('str\[(\d+)\]')REG_UNFOLD_KEY = re.compile('unicode_unfold_key\s*\(register\s+const\s+char\s*\*\s*str,\s*register\s+unsigned\s+int\s+len\)')REG_ENTRY = re.compile('\{".+?",\s*/\*(.+?)\*/\s*(-?\d+),\s*(\d)\}')REG_EMPTY_ENTRY = re.compile('\{"",\s*(-?\d+),\s*(\d)\}')REG_IF_LEN = re.compile('if\s*\(\s*len\s*<=\s*MAX_WORD_LENGTH.+')REG_GET_HASH = re.compile('(?:register\s+)?(?:unsigned\s+)?int\s+key\s*=\s*hash\s*\(str,\s*len\);')REG_GET_CODE = re.compile('(?:register\s+)?const\s+char\s*\*\s*s\s*=\s*wordlist\[key\]\.name;')REG_CODE_CHECK = re.compile('if\s*\(\*str\s*==\s*\*s\s*&&\s*!strncmp.+\)')def parse_line(s):    s = s.rstrip()    r = re.sub(REG_LINE_GPERF, '', s)    if r != s: return r    r = re.sub(REG_HASH_FUNC, 'hash(OnigCodePoint codes[])', s)    if r != s: return r    r = re.sub(REG_STR_AT, 'onig_codes_byte_at(codes, \\1)', s)    if r != s: return r    r = re.sub(REG_UNFOLD_KEY, 'unicode_unfold_key(OnigCodePoint code)', s)    if r != s: return r    r = re.sub(REG_ENTRY, '{\\1, \\2, \\3}', s)    if r != s: return r    r = re.sub(REG_EMPTY_ENTRY, '{0xffffffff, \\1, \\2}', s)    if r != s: return r    r = re.sub(REG_IF_LEN, 'if (0 == 0)', s)    if r != s: return r    r = re.sub(REG_GET_HASH, 'int key = hash(&code);', s)    if r != s: return r    r = re.sub(REG_GET_CODE, 'OnigCodePoint gcode = wordlist[key].code;', s)    if r != s: return r    # BUG: CWE-787 Out-of-bounds Write    # r = re.sub(REG_CODE_CHECK, 'if (code == gcode)', s)    # FIXED:     r = re.sub(REG_CODE_CHECK, 'if (code == gcode && wordlist[key].index >= 0)', s)    if r != s: return r    return sdef parse_file(f):    print "/* This file was converted by gperf_unfold_key_conv.py\n      from gperf output file. */"    line = f.readline()    while line:        s = parse_line(line)        print s        line = f.readline()# mainparse_file(sys.stdin)