On Wed, Apr 09, 2008 at 04:32:09AM +0100, Nick Kew wrote: > On 9 Apr 2008, at 03:40, [EMAIL PROTECTED] wrote: >> Hi, >> mod_sed is a sed[1] based Apache filtering module, with the sed code based >> on >> opensolaris sed. sed scripting offers a more familiar interface to build >> powerful filters. This mod_sed is designed to work with Apache HTTP server >> version 2.2 and above. > > Thanks. This is useful stuff. Of course mod_sed overlaps with > mod_line_edit > and mod_substitute, but you're the first to support both input and output > filtering. My knowledge of sed itself is limited to the same kind of > search- > and-replace those filters offer, but I have an idea it does a little more > than > just that, too. Any performance comparisons with its competitors? I have not yet done any performance comparisons with its competitor but feature wise sed is very rich. I will try to do some basic performance testing and come back with results. Besides search and replace and regular expressions, Some of it's feature are : 1) One can write if/else condition using sed labels and branches. If (match) do this else do that. 2) Read/Write to a file using 'r' and 'w' commands 3) operations on a particular line number. 4) deleting lines on a condition. 5) Using braces to specify multiple operations if a condition matches. 6) inserting and appending text and many others features.
Here is one of the sed tutorial (from google) http://www.grymoire.com/Unix/Sed.html > >> Design of this filter is in the way that regexp.c, regexp.h, sed0.c >> sed1.c, >> libsed.h can be made part of the apr. While the filter code mod_sed.c >> will be a filter module which can reside under modules directory. This >> way other modules can also take advantage of sed libraries. > > I think you mean you've adapted the sed code to run on APR pools, > and updated it for thread-safety/reentrancy. Once we have a > modular build system in a release version of apr-util, that could > perhaps fit nicely as an apr_sed module. But that's a whole other > discussion. > >> Please have a look into the code and provide your comments. > > Well, I've had a preview of this, and it's good :-) > > -- > Nick Kew Regards, Basant.
