Index terms may be command, method, variable, option names, format specifiers such as %d etc.

Navigation:

If the URL typed includes the search query parameter, the filter box is prefilled and matching terms shown on page load. For example, try clicking the following: https://www.magicsplat.com/tcl-docs/docindex.html?search=sqlite3

This can be useful for looking up documentation from an editor that supports such functionality.