POV-Ray : Documentation : Find
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3.5.3 Search Menu Replace Find

Searches the file for the first occurance of a specific string of text and highlights/selects it.

- Match Whole Word Only

If this option is checked, partial matches will not occur (for example, the search string 'Persist' will not find the word 'Persistence', whereas normally it would). Match Case

If this option is checked, then the case of the search string and the searched-for text will be the same. Wildcard Search

The search string allows the following wildcard characters if the "Wildcard Search" option is checked -
? Matches any single character
+ Matches one or more of the previous character or item (which may be a wildcard or group), up to a maximum of the end of the line. For example, ?+ will match from the next character to the end of the line, and [0-9.]+ will match any number, with or without a decimal point.
* This operator works like '+' above, but matches zero or more rather than one or more. Put another way, it makes the previous character or item optional.
[] Characters enclosed in square brackets will be treated as an inclusive set. Character ranges may be specified with a '-' (e.g. [a-c] would match the characters 'a', 'b', or 'c').
| Subexpressions may be ORed together with the | pipe symbol.
() A wildcard expression may be enclosed within parentheses and will be treated as a unit.
Sequences such as \t, etc. will be substituted for an equivalent single character. To represent a literal backslash, use two (e.g. \\).

Be aware that the wildcard search facility does have some bugs in it and may not always match correctly (e.g. [0-9A-Za-z] will match all alphanumerics, but [A-Za-z0-9] does not match numbers, even though it should).

3.5.3 Search Menu Replace

Copyright 2003-2004 Persistence of Vision Raytracer Pty. Ltd.