regex_formula (322B)
1 # Regex formula 2 3 A *regex formula* is like a [regular_expression] but with [capture_variables] of the form x{alpha} where x is a [variable] and alpha is a [regular_expression] 4 5 It recognizes a [subset] of the [spanners] that can be expressed with of [vset_automata] 6 7 Up: [spanner] 8 9 Aliases: regex formulas, regex formulae