blank_regexp re produces a blank function from the regexp
re (following the
Str syntax). There is an important limitation rega- rding regular expressions containing the newline character
'\n', due to the fact that the
Str module only matches on strings (and not on an abstract notion of buffer). Such regular expressions can only be used if they are idempotent.
val regexp : ?name:string -> string -> ( ( int -> string ) -> 'a ) -> 'a Earley_core.Earley.grammar
regexp ?name re g is a grammar that parses the input according to the regular expression
re, and returns a value built by applying the function
g to a function of type
int -> string that returns the substring matched by the
n-th match group of the regexp
re (as in the
Str module). The optional
name argument is used to refer to the regular expression in error messages.