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package earley

earley
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Module `Earley_core.Regexp`Source

A small module for efficient regular expressions.

Sourcetype regexp =

| Chr of char
| Set of Charset.t
| Seq of regexp list
| Alt of regexp list
| Opt of regexp
| Str of regexp
| Pls of regexp
| Sav of regexp * string ref

Type of a regular expression.

Sourceexception Regexp_error of Input.buffer * int

Exception that is raised when a regexp cannot be read.

Sourceval print_regexp : out_channel -> regexp -> unit

Sourceval accept_empty : regexp -> bool

Sourceval accepted_first_chars : regexp -> Charset.t

Sourceval regexp_from_string : string -> regexp * string ref array

Sourceval read_regexp : regexp -> Input.buffer -> int -> Input.buffer * int

read_regexp re buf pos attempts to parse using the buffer buf at position pos using the regular expression re. The return value is a triple of the parsed string, the buffer after parsing and the position after parsing. The exception Regexp_error(err_buf, err_pos is raised in case of failure at the given position.

package earley

Module Earley_core.RegexpSource

Module `Earley_core.Regexp`Source