Filtering and Searching in GA
Filtering and searching in GA uses Java regular expressions. For example, type gl_program|gl_texture into a filter or search box and that will match both entries that contain the 'gl_texture' or 'gl_program'. Filtering and searching in GA is case insensitive.
By default the matches are preformed on substrings, e.g. program will match GL_PROGRAM. If you wish to anchor your expressions you can use the standard regular expression boundary matchers such and ^ (the beginning of a line) and $ (the end of a line). For example, typing program$ matches GL_CURRENT_PROGRAM but not GL_PROGRAM_PIPELINE_BINDING.
If the filter you type is not a valid regular expression, the Filter or Search box will go red and the specific error will be shown as a tooltip.