RegEx

Regular Expresion vs. Wildcard (Filter)

Wildcards (also known as file globs or file globbing) convert to regular expressions. e.g.:

• Replace any * characters with .*
• Replace any ? characters with .
• Leave square brackets as they are
• Replace any characters which are metacharacters with a backslashified version

Examples:

Wildcard	Regular Expr.
*.jpg	.*\.jpg
*.\[ch]pp	.*\.\[ch]pp or .*\.(cpp|hpp)
*_images_*.jpg	(?i)(.*_images_.*\.jpg)

Note: default for pPGallery (when no filter is selected) ->  '(?i)(.jpg$|.gif$|.png$)'