Documentation

API Reference Manual

TRE implements the full POSIX regex API, plus a bunch of extensions.    The basic flow is that first you compile your regex string into a regex_t object.  Then you can search for matches with the various regexec functions.

• regcomp() – Compiling Regexps
• regexec() – Searching for Matches
• regaexec() – Approximate Matching
• reguexec() – Matching Over Arbitrary Input
• Utility Functions and Macros

Regex Syntax Manual

TRE implements most of the POSIX regex syntax, as documented on the Regex Syntax page.