ocaml/debugger/lexer.mll

99 lines
2.6 KiB
OCaml

(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Jerome Vouillon, projet Cristal, INRIA Rocquencourt *)
(* Objective Caml port by John Malecki and Xavier Leroy *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* Automatique. Distributed only by permission. *)
(* *)
(***********************************************************************)
(* $Id$ *)
{
open Primitives
open Parser
}
rule line = (* Read a whole line *)
parse
[ ^ '\n' ]* '\n'
{ let line = Lexing.lexeme lexbuf in
String.sub line 0 (String.length line - 1) }
| [ ^ '\n' ]*
{ Lexing.lexeme lexbuf }
| eof
{ raise Exit }
and argument = (* Read a raw argument *)
parse
[ ^ ' ' '\t' ]+
{ ARGUMENT (Lexing.lexeme lexbuf) }
| [' ' '\t']+
{ argument lexbuf }
| eof
{ EOL }
| _
{ raise Parsing.Parse_error }
and line_argument =
parse
_ *
{ ARGUMENT (Lexing.lexeme lexbuf) }
| eof
{ EOL }
and lexeme = (* Read a lexeme *)
parse
[' ' '\t'] +
{ lexeme lexbuf }
| ['a'-'z' '\223'-'\246' '\248'-'\255' ]
(['A'-'Z' 'a'-'z' '_' '\192'-'\214' '\216'-'\246' '\248'-'\255'
'\'' '0'-'9' ]) *
{ LIDENT(Lexing.lexeme lexbuf) }
| ['A'-'Z' '\192'-'\214' '\216'-'\222' ]
(['A'-'Z' 'a'-'z' '_' '\192'-'\214' '\216'-'\246' '\248'-'\255'
'\'' '0'-'9' ]) *
{ UIDENT(Lexing.lexeme lexbuf) }
| '"' [^ '"']* "\""
{ let s = Lexing.lexeme lexbuf in
LIDENT(String.sub s 1 (String.length s - 2)) }
| ['0'-'9']+
| '0' ['x' 'X'] ['0'-'9' 'A'-'F' 'a'-'f']+
| '0' ['o' 'O'] ['0'-'7']+
| '0' ['b' 'B'] ['0'-'1']+
{ INTEGER (int_of_string (Lexing.lexeme lexbuf)) }
| '*'
{ STAR }
| "-"
{ MINUS }
| "."
{ DOT }
| "#"
{ SHARP }
| "@"
{ AT }
| "$"
{ DOLLAR }
| "!"
{ BANG }
| "("
{ LPAREN }
| ")"
{ RPAREN }
| "["
{ LBRACKET }
| "]"
{ RBRACKET }
| ['!' '?' '~' '=' '<' '>' '|' '&' '$' '@' '^' '+' '-' '*' '/' '%']
['!' '$' '%' '&' '*' '+' '-' '.' '/' ':' '<' '=' '>' '?' '@' '^' '|' '~'] *
{ OPERATOR (Lexing.lexeme lexbuf) }
| eof
{ EOL }
| _
{ raise Parsing.Parse_error }