本文实例讲述了Python基于正则表达式实现文件内容替换的方法。分享给大家供大家参考,具体如下:
最近因为有一个项目需要从普通的服务器移植到SAE,而SAE的thinkphp文件结构和本地测试的有出入,需要把一些html和js的引用路径改成SAE的形式,为了不手工改,特地速成了一下Python的正则表达式和文件操作。主要要求是将某目录下的html和js里面的几个路径变量分别更改成相应的形式,匹配文件名的时候用了正则
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import os import re #all file in the directory filelist = [] #function to traverse the directory def recurseDir(path): for i in os.listdir(path): if os.path.isdir(path + '\\' + i): recurseDir(path + '\\' + i) else : p = path + '\\' + i print p filelist.append(p) #replace the file content def replace(strFind, strReplace, lines, fileIO): for s in lines: if s.find(strFind) ! = - 1 : foutput.write(s) fileIO.write(s.replace(strFind, strReplace)) rootpath = os.path.abspath( '.' ) recurseDir(rootpath) pattern1 = re. compile (r '.+html' ) pattern2 = re. compile (r '.+js' ) for fileName in filelist: match1 = pattern1.match(fileName) match2 = pattern2.match(fileName) if match1 or match2: lines = open (fileName).readlines() fp = open (fileName + '.temp' , 'w' ) foutput = open ( "result.txt" , 'w' ) foutput.write(fileName) if match1: replace( '<include file="./Tpl/' , '<include file="./App/Tpl/' , lines, fp) if match2: replace( 'xxx/index.php' , 'index.php' , lines, fp) fp.close() #delete original file if os.path.exists(fileName): os.remove(fileName); #rename the temp file os.rename(fileName + '.temp' , fileName) |
希望本文所述对大家Python程序设计有所帮助。
原文链接:http://blog.csdn.net/u012862140/article/details/39011881