EmbeddedPkg: Extend NvVarStoreFormattedLib LIBRARY_CLASS

[mirror_edk2.git] / AppPkg / Applications / Python / Python-2.7.2 / Demo / scripts / update.py

#! /usr/bin/env python\r
\r
# Update a bunch of files according to a script.\r
# The input file contains lines of the form <filename>:<lineno>:<text>,\r
# meaning that the given line of the given file is to be replaced\r
# by the given text.  This is useful for performing global substitutions\r
# on grep output:\r
\r
import os\r
import sys\r
import re\r
\r
pat = '^([^: \t\n]+):([1-9][0-9]*):'\r
prog = re.compile(pat)\r
\r
class FileObj:\r
    def __init__(self, filename):\r
        self.filename = filename\r
        self.changed = 0\r
        try:\r
            self.lines = open(filename, 'r').readlines()\r
        except IOError, msg:\r
            print '*** Can\'t open "%s":' % filename, msg\r
            self.lines = None\r
            return\r
        print 'diffing', self.filename\r
\r
    def finish(self):\r
        if not self.changed:\r
            print 'no changes to', self.filename\r
            return\r
        try:\r
            os.rename(self.filename, self.filename + '~')\r
            fp = open(self.filename, 'w')\r
        except (os.error, IOError), msg:\r
            print '*** Can\'t rewrite "%s":' % self.filename, msg\r
            return\r
        print 'writing', self.filename\r
        for line in self.lines:\r
            fp.write(line)\r
        fp.close()\r
        self.changed = 0\r
\r
    def process(self, lineno, rest):\r
        if self.lines is None:\r
            print '(not processed): %s:%s:%s' % (\r
                      self.filename, lineno, rest),\r
            return\r
        i = eval(lineno) - 1\r
        if not 0 <= i < len(self.lines):\r
            print '*** Line number out of range: %s:%s:%s' % (\r
                      self.filename, lineno, rest),\r
            return\r
        if self.lines[i] == rest:\r
            print '(no change): %s:%s:%s' % (\r
                      self.filename, lineno, rest),\r
            return\r
        if not self.changed:\r
            self.changed = 1\r
        print '%sc%s' % (lineno, lineno)\r
        print '<', self.lines[i],\r
        print '---'\r
        self.lines[i] = rest\r
        print '>', self.lines[i],\r
\r
def main():\r
    if sys.argv[1:]:\r
        try:\r
            fp = open(sys.argv[1], 'r')\r
        except IOError, msg:\r
            print 'Can\'t open "%s":' % sys.argv[1], msg\r
            sys.exit(1)\r
    else:\r
        fp = sys.stdin\r
    curfile = None\r
    while 1:\r
        line = fp.readline()\r
        if not line:\r
            if curfile: curfile.finish()\r
            break\r
        n = prog.match(line)\r
        if n < 0:\r
            print 'Funny line:', line,\r
            continue\r
        filename, lineno = prog.group(1, 2)\r
        if not curfile or filename <> curfile.filename:\r
            if curfile: curfile.finish()\r
            curfile = FileObj(filename)\r
        curfile.process(lineno, line[n:])\r
\r
if __name__ == "__main__":\r
    main()\r