File: class/Extras/Code/Text/cheader.py
#! /usr/local/bin/python
import sys, re
from string import strip
pattDefine = re.compile( # compile to pattobj
'^#[\t ]*define[\t ]+([a-zA-Z0-9_]+)[\t ]*(.*)') # "# define xxx yyy..."
pattInclude = re.compile(
'^#[\t ]*include[\t ]+[<"]([a-zA-Z0-9_/\.]+)') # "# include <xxx>..."
def scan(file):
count = 0
for line in file: # scan line-by-line
count += 1
matchobj = pattDefine.match(line) # None if match fails
if matchobj:
name = matchobj.group(1) # substrings for (...) parts
body = matchobj.group(2)
print count, 'defined', name, '=', strip(body)
else:
matchobj = pattInclude.match(line)
if matchobj:
start, stop = matchobj.span(1) # start/stop indexes of (...)
filename = line[start:stop] # slice out of line
print count, 'include', filename # same as matchobj.group(1)
if len(sys.argv) == 1:
scan(sys.stdin) # no args: read stdin
else:
scan(open(sys.argv[1], 'r')) # arg: input file name