Template:Substring?/doc

This is a documentation subpage for Template:Substring? (see that page for the template itself).
It contains usage information, categories and other content that is not part of the original template page.

create use count

Usage

Provide two strings as unnamed parameters. If the second string is contained in the first (including, if they're the same string), returns the 1-indexed position of the second string within the first; otherwise, returns blank

Internals

This is not meant to be part of a suite of string-manipulation tools; for general string manipulations, use {{evalx}}. Rather, this template is meant for a class of situations that may be quite common: a page contains a very large number of simple tests to distinguish separate cases, where all, or most, cases can be handled entirely with magic words; so that lots of server load can be saved by doing the test with Module:Substring? rather than Module:Wikilisp.