1 """ 2 WordWrapping 3 """ 4 5 6 import os, sys, string, time, getopt 7 import re 8 9 def WordWrap(text, cols=70, detect_paragraphs = 0, is_header = 0): 10 text = string.replace(text,"\r\n", "\n") # remove CRLF 11 def nlrepl(matchobj): 12 if matchobj.group(1) != ' ' and matchobj.group(2) != ' ': 13 repl_with = ' ' 14 else: 15 repl_with = '' 16 17 return matchobj.group(1) + repl_with + matchobj.group(2) 18 19 if detect_paragraphs: 20 text = re.sub("([^\n])\n([^\n])",nlrepl,text) 21 22 body = [] 23 i = 0 24 j = 0 25 ltext = len(text) 26 27 while i<ltext: 28 if i+cols < ltext: 29 r = string.find(text, "\n", i, i+cols) 30 j = r 31 if r == -1: 32 j = string.rfind(text, " ", i, i+cols) 33 if j == -1: 34 r = string.find(text, "\n", i+cols) 35 if r == -1: r = ltext 36 j = string.find(text, " ", i+cols) 37 if j == -1: j = ltext 38 j = min(j, r) 39 else: 40 j = ltext 41 42 body.append(string.strip(text[i:j])) 43 i = j+1 44 45 if is_header: 46 body = string.join(body, "\n ") 47 else: 48 body = string.join(body, "\n") 49 return body 50 51
