采采卷耳，不盈顷筐。嗟我怀人，寘彼周行。陟彼崔嵬，我马虺隤。我姑酌彼金罍，维以不永怀。陟彼高冈，我马玄黄。我姑酌彼兕觥，维以不永伤。陟彼砠矣，我马瘏矣。
我仆痡矣，云何吁矣！
?  PNG ?%k25u25%fgd5n!?  PNG ?%k25u25%fgd5n!?  PNG ?%k25u25%fgd5n!?  PNG ?%k25u25%fgd5n!#! /opt/alt/python35/bin/python3.5
"""Create a TAGS file for Python programs, usable with GNU Emacs.

usage: eptags pyfiles...

The output TAGS file is usable with Emacs version 18, 19, 20.
Tagged are:
 - functions (even inside other defs or classes)
 - classes

eptags warns about files it cannot open.
eptags will not give warnings about duplicate tags.

BUGS:
   Because of tag duplication (methods with the same name in different
   classes), TAGS files are not very useful for most object-oriented
   python projects.
"""
import sys,re

expr = r'^[ \t]*(def|class)[ \t]+([a-zA-Z_][a-zA-Z0-9_]*)[ \t]*[:\(]'
matcher = re.compile(expr)

def treat_file(filename, outfp):
    """Append tags found in file named 'filename' to the open file 'outfp'"""
    try:
        fp = open(filename, 'r')
    except OSError:
        sys.stderr.write('Cannot open %s\n'%filename)
        return
    charno = 0
    lineno = 0
    tags = []
    size = 0
    while 1:
        line = fp.readline()
        if not line:
            break
        lineno = lineno + 1
        m = matcher.search(line)
        if m:
            tag = m.group(0) + '\177%d,%d\n' % (lineno, charno)
            tags.append(tag)
            size = size + len(tag)
        charno =