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7401123f GM |
1 | (* m2flex.def provides a Modula-2 definition module for m2.flex. |
2 | ||
3d864fce | 3 | Copyright (C) 2015-2022 Free Software Foundation, Inc. |
7401123f GM |
4 | Contributed by Gaius Mulley <gaius@glam.ac.uk>. |
5 | ||
6 | This file is part of GNU Modula-2. | |
7 | ||
8 | GNU Modula-2 is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GNU Modula-2 is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Modula-2; see the file COPYING3. If not see | |
20 | <http://www.gnu.org/licenses/>. *) | |
21 | ||
22 | DEFINITION MODULE m2flex ; | |
23 | ||
24 | FROM SYSTEM IMPORT ADDRESS ; | |
25 | ||
26 | ||
27 | (* | |
28 | CloseSource - provided for semantic sugar | |
29 | *) | |
30 | ||
31 | PROCEDURE CloseSource ; | |
32 | ||
33 | ||
34 | (* | |
35 | OpenSource - returns TRUE if file, s, can be opened and | |
36 | all tokens are taken from this file. | |
37 | *) | |
38 | ||
39 | PROCEDURE OpenSource (s: ADDRESS) : BOOLEAN ; | |
40 | ||
41 | ||
42 | (* | |
43 | GetToken - returns the ADDRESS of the next token. | |
44 | *) | |
45 | ||
46 | PROCEDURE GetToken () : ADDRESS ; | |
47 | ||
48 | ||
49 | (* | |
50 | GetLineNo - returns the current line number. | |
51 | *) | |
52 | ||
53 | PROCEDURE GetLineNo () : CARDINAL ; | |
54 | ||
55 | ||
56 | (* | |
57 | GetColumnNo - returns the column where the current token starts. | |
58 | *) | |
59 | ||
60 | PROCEDURE GetColumnNo () : CARDINAL ; | |
61 | ||
62 | ||
63 | (* | |
64 | M2Error - displays the error message, s, after the code line and pointer | |
65 | to the erroneous token. | |
66 | *) | |
67 | ||
68 | PROCEDURE M2Error (s: ADDRESS) ; | |
69 | ||
70 | ||
71 | (* | |
72 | GetTotalLines - returns the total number of lines parsed. | |
73 | *) | |
74 | ||
75 | PROCEDURE GetTotalLines () : CARDINAL ; | |
76 | ||
77 | ||
78 | END m2flex. |