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Apache Module mod_substitute

Description:Perform search and replace operations on response bodies
Status:Extension
Module Identifier:substitute_module
Source File:mod_substitute.c
Compatibility:Available in Apache 2.2.7 and later

Summary

mod_substitute provides a mechanism to perform both regular expression and fixed string substitutions on response bodies.

Directives

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Substitute Directive

Description:Pattern to filter the response content
Syntax:Substitute s/pattern/substitution/[infq]
Context:directory, .htaccess
Override:FileInfo
Status:Extension
Module:mod_substitute

The Substitute directive specifies a search and replace pattern to apply to the response body.

The meaning of the pattern can be modified by using any combination of these flags:

i
Perform a case-insensitive match.
n
By default the pattern is treated as a regular expression. Using the n flag forces the pattern to be treated as a fixed string.
f
The f flag causes mod_substitute to flatten the result of a substitution allowing for later substitutions to take place on the boundary of this one. This is the default.
q
The q flag causes mod_substitute to not flatten the buckets after each substitution. This can result in much faster response and a decrease in memory utilization, but should only be used if there is no possibility that the result of one substitution will ever match a pattern or regex of a subsequent one.

Example

<Location /> AddOutputFilterByType SUBSTITUTE text/html
Substitute s/foo/bar/ni
</Location>

If either the pattern or the substitution contain a slash character then an alternative delimiter should be used:

Example of using an alternate delimiter

<Location /> AddOutputFilterByType SUBSTITUTE text/html
Substitute "s|<BR */?>|<br />|i"
</Location>

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