00001 """
00002 WordWrapping
00003 """
00004
00005
00006 import os, sys, string, time, getopt
00007 import re
00008
00009 def WordWrap(text, cols=70, detect_paragraphs = 0, is_header = 0):
00010 text = string.replace(text,"\r\n", "\n")
00011 def nlrepl(matchobj):
00012 if matchobj.group(1) != ' ' and matchobj.group(2) != ' ':
00013 repl_with = ' '
00014 else:
00015 repl_with = ''
00016
00017 return matchobj.group(1) + repl_with + matchobj.group(2)
00018
00019 if detect_paragraphs:
00020 text = re.sub("([^\n])\n([^\n])",nlrepl,text)
00021
00022 body = []
00023 i = 0
00024 j = 0
00025 ltext = len(text)
00026
00027 while i<ltext:
00028 if i+cols < ltext:
00029 r = string.find(text, "\n", i, i+cols)
00030 j = r
00031 if r == -1:
00032 j = string.rfind(text, " ", i, i+cols)
00033 if j == -1:
00034 r = string.find(text, "\n", i+cols)
00035 if r == -1: r = ltext
00036 j = string.find(text, " ", i+cols)
00037 if j == -1: j = ltext
00038 j = min(j, r)
00039 else:
00040 j = ltext
00041
00042 body.append(string.strip(text[i:j]))
00043 i = j+1
00044
00045 if is_header:
00046 body = string.join(body, "\n ")
00047 else:
00048 body = string.join(body, "\n")
00049 return body
00050
