projects / thirdparty / gcc.git / blame
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| 1eee94d3 GM |
1 | (* cflex.def provides a Modula-2 definition module for C lexical analysis. |
| 2 | ||
| a945c346 | 3 | Copyright (C) 2003-2024 Free Software Foundation, Inc. |
| 1eee94d3 GM |
4 | Contributed by Gaius Mulley <gaius.mulley@southwales.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 cflex ; | |
| 23 | ||
| 24 | (* | |
| 25 | Title : clex | |
| 26 | Author : Gaius Mulley | |
| 27 | System : GNU Modula-2 | |
| 28 | Date : Thu Jan 23 12:39:36 2003 | |
| 29 | Revision : $Version$ | |
| 30 | Description: provides a Modula-2 definition module for C lexical analysis. | |
| 31 | *) | |
| 32 | ||
| 33 | FROM SYSTEM IMPORT ADDRESS ; | |
| 34 | EXPORT QUALIFIED GetToken, AdvanceToken, CError, OpenSource, CloseSource, GetLineNo, | |
| 35 | ParsingOn, SetSearchPath, AddTypeDef ; | |
| 36 | ||
| 37 | ||
| 38 | (* | |
| 39 | CloseSource - provided for semantic sugar | |
| 40 | *) | |
| 41 | ||
| 42 | PROCEDURE CloseSource ; | |
| 43 | ||
| 44 | ||
| 45 | (* | |
| 46 | OpenSource - returns TRUE if file, s, can be opened and | |
| 47 | all tokens are taken from this file. | |
| 48 | *) | |
| 49 | ||
| 50 | PROCEDURE OpenSource (s: ADDRESS) : BOOLEAN ; | |
| 51 | ||
| 52 | ||
| 53 | (* | |
| 54 | GetToken - returns the ADDRESS of the next token. | |
| 55 | *) | |
| 56 | ||
| 57 | PROCEDURE GetToken () : ADDRESS ; | |
| 58 | ||
| 59 | ||
| 60 | (* | |
| 61 | AdvanceToken - move onto the next token. | |
| 62 | *) | |
| 63 | ||
| 64 | PROCEDURE AdvanceToken ; | |
| 65 | ||
| 66 | ||
| 67 | (* | |
| 68 | GetLineNo - returns the current line number. | |
| 69 | *) | |
| 70 | ||
| 71 | PROCEDURE GetLineNo () : CARDINAL ; | |
| 72 | ||
| 73 | ||
| 74 | (* | |
| 75 | CError - displays the error message, s, after the code line and pointer | |
| 76 | to the erroneous token. | |
| 77 | *) | |
| 78 | ||
| 79 | PROCEDURE CError (s: ADDRESS) ; | |
| 80 | ||
| 81 | ||
| 82 | (* | |
| 83 | ParsingOn - if t is FALSE then the lexical analysis will | |
| 84 | consume all lines except when a line is one of | |
| 85 | '#endif' or '#else' or '#if' or '#ifdef' | |
| 86 | *) | |
| 87 | ||
| 88 | PROCEDURE ParsingOn (t: BOOLEAN) ; | |
| 89 | ||
| 90 | ||
| 91 | (* | |
| 92 | SetSearchPath - reassigns the search path to newPath. | |
| 93 | *) | |
| 94 | ||
| 95 | PROCEDURE SetSearchPath (newPath: ADDRESS) ; | |
| 96 | ||
| 97 | ||
| 98 | (* | |
| 99 | AddTypeDef - adds the string, a, to the list of typedefs. | |
| 100 | *) | |
| 101 | ||
| 102 | PROCEDURE AddTypeDef (a: ADDRESS) ; | |
| 103 | ||
| 104 | ||
| 105 | END cflex. |