On 29Apr2010 05:03, james_027 <cai.hai...@gmail.com> wrote: | On Apr 29, 5:31 am, Cameron Simpson <c...@zip.com.au> wrote: | > On 28Apr2010 22:03, Daniel Fetchinson <fetchin...@googlemail.com> wrote: | > | > Any idea how I can replace words in a html file? Meaning only the | > | > content will get replace while the html tags, javascript, & css are | > | > remain untouch. [...] | > The only way to get this right is to parse the file, then walk the doc | > tree enditing only the text parts. | > | > The BeautifulSoup module (3rd party, but a single .py file and trivial to | > fetch and use, though it has some dependencies) does a good job of this, | > coping even with typical not quite right HTML. It gives you a parse | > tree you can easily walk, and you can modify it in place and write it | > straight back out. | | Thanks for all your input. Cameron Simpson get the idea of what I am | trying to do. I've been looking at beautiful soup so far I don't know | how to perform search and replace within it.
Well the BeautifulSoup web page helped me: http://www.crummy.com/software/BeautifulSoup/documentation.html Here's a function from a script I wrote to bulk edit a web site. I was replacing OBJECT and EMBED nodes with modern versions: def recurse(node): global didmod for O in node.contents: if isinstance(O,Tag): for attr in 'src', 'href': if attr in O: rurl=O[attr] rurlpath=pathwrt(rurl,SRCPATH) if not os.path.exists(rurlpath): print >>sys.stderr, "%s: MISSING: %s" % (SRCPATH, rurlpath,) O2=None if O.name == "object": O2, SUBOBJ = fixmsobj(O) elif O.name == "embed": O2, SUBOBJ = fixembed(O) if O2 is not None: O.replaceWith(O2) SUBOBJ.replaceWith(O) ##print >>sys.stderr, "%s: update: new OBJECT: %s" % (SRCPATH, str(O2), ) didmod=True continue recurse(O) but you have only to change it a little to modify things that aren't Tag objects. The calling end looks like this: with open(SRCPATH) as srcfp: srctext = srcfp.read() SOUP = BeautifulSoup(srctext) didmod = False # icky global set by recurse() recurse(SOUP) if didmod: srctext = str(SOUP) If didmod becomes True we recompute srctext and resave the file (or save it to a copy). Cheers, -- Cameron Simpson <c...@zip.com.au> DoD#743 http://www.cskk.ezoshosting.com/cs/ Democracy is the theory that the people know what they want, and deserve to get it good and hard. - H.L. Mencken -- http://mail.python.org/mailman/listinfo/python-list
