Functor Kwregexp.Make

module Make: functor (R : RegexpType) -> sig .. end

Functor to be applied to Pcre or Str.

Parameters:

R : RegexpType

val scan : ?pat:string -> ?rex:R.regexp -> (string -> 'a -> 'a) -> 'a -> string -> 'a

Scan substrings out of str, fold-style.

One of ~pat or ~rex (but not both) are required.

Example: extract a list of all words from stdin:

Kwio.foldlines (scan ~pat:"[A-Za-z]+" cons) [] stdin

pat : a string representing a regexp

rex : a compiled regexp

f : function of two params, a substring and an accumulator

acc : initial value for accumulator

str : string to scan

val sub : ?pat:string -> ?rex:R.regexp -> (int -> string -> string) -> string -> string

sub ?pat ?rex f str: ∀i, replace the i'th match of pat or rex with f i x, where x is the text matched.

Exactly one of pat and rex must be provided. Parenthesized subgroups are not supported.

pat : a string representing a regexp

rex : a compiled regexp

f : function of two params, i the (zero-based) count of how many time f has been called, and x, the text matched

str : the subject string