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Merged previous lwcc development branch into mainline.
author William Astle <lost@l-w.ca>
date Mon, 05 Aug 2019 21:27:09 -0600
parents 670ea8f90212
children
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493:6073f4a33475 495:5b8871fd7503
1 /*
2 lwcc/cpp.h
3
4 Copyright © 2013 William Astle
5
6 This file is part of LWTOOLS.
7
8 LWTOOLS is free software: you can redistribute it and/or modify it under the
9 terms of the GNU General Public License as published by the Free Software
10 Foundation, either version 3 of the License, or (at your option) any later
11 version.
12
13 This program is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 more details.
17
18 You should have received a copy of the GNU General Public License along with
19 this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #ifndef cpp_h_seen___
23 #define cpp_h_seen___
24
25 #include <stdio.h>
26
27 #include <lw_stringlist.h>
28
29 //#include "symbol.h"
30 #include "token.h"
31
32 #define TOKBUFSIZE 32
33
34 struct expand_e
35 {
36 struct expand_e *next;
37 struct symtab_e *s; // symbol table entry of the expanding symbol
38 };
39
40 struct preproc_info
41 {
42 const char *fn;
43 FILE *fp;
44 struct token *tokqueue;
45 struct token *curtok;
46 void (*errorcb)(const char *);
47 void (*warningcb)(const char *);
48 int eolstate; // internal for use in handling newlines
49 int lineno; // the current input line number
50 int column; // the current input column
51 int trigraphs; // nonzero if we're going to handle trigraphs
52 int ra;
53 int qseen;
54 int ungetbufl;
55 int ungetbufs;
56 int *ungetbuf;
57 int unget;
58 int eolseen;
59 int nlseen;
60 int ppeolseen; // nonzero if we've seen only whitespace (or nothing) since a newline
61 int skip_level; // nonzero if we're in a false conditional
62 int found_level; // nonzero if we're in a true conditional
63 int else_level; // for counting #else directives
64 int else_skip_level; // ditto
65 struct symtab_e *sh; // the preprocessor's symbol table
66 struct token *sourcelist; // for expanding a list of tokens
67 struct expand_e *expand_list; // record of which macros are currently being expanded
68 char *lexstr; // for lexing a string (token pasting)
69 int lexstrloc; // ditto
70 struct preproc_info *n; // next in file stack
71 struct preproc_info *filestack; // stack of saved files during include
72 struct lw_strpool *strpool;
73 lw_stringlist_t quotelist;
74 lw_stringlist_t inclist;
75 };
76
77 extern struct preproc_info *preproc_init(const char *);
78 extern struct token *preproc_next_token(struct preproc_info *);
79 extern struct token *preproc_next_processed_token(struct preproc_info *);
80 extern void preproc_finish(struct preproc_info *);
81 extern void preproc_register_error_callback(struct preproc_info *, void (*)(const char *));
82 extern void preproc_register_warning_callback(struct preproc_info *, void (*)(const char *));
83 extern void preproc_throw_error(struct preproc_info *, const char *, ...);
84 extern void preproc_throw_warning(struct preproc_info *, const char *, ...);
85 extern void preproc_unget_token(struct preproc_info *, struct token *);
86 extern void preproc_add_include(struct preproc_info *, char *, int);
87 extern void preproc_add_macro(struct preproc_info *, char *);
88 extern struct token *preproc_next(struct preproc_info *);
89
90 #endif // cpp_h_seen___