annotate lab2/lexer.mli @ 1:b5139af1a420 tip basis

Fixed permissions on compile scripts
author Mike Spivey <mike@cs.ox.ac.uk>
date Fri, 13 Oct 2017 17:27:58 +0100
parents bfdcc3820b32
children
rev   line source
0
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
1 (* lab2/lexer.mli *)
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
2 (* Copyright (c) 2017 J. M. Spivey *)
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
3
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
4 (*
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
5 The lexer is generated from a camllex script. It takes an input
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
6 buffer, reads a token, and returns the |token| value that corresponds
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
7 to it. The lexer maintains the current line number in |lineno| for
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
8 producing error messages.
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
9 *)
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
10
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
11 (* |token| -- scan a token and return its code *)
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
12 val token : Lexing.lexbuf -> Parser.token
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
13
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
14 (* |lineno| -- number of current line *)
Mike Spivey <mike@cs.ox.ac.uk>
parents:
diff changeset
15 val lineno : int ref