soltools/cpp/cpp.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <stdlib.h>
  21 #include <string.h>
  22
  23 #define INS         327680  /* input buffer                             */
  24 #define OBS         8092    /* output buffer                            */
  25 #define NARG        32      /* Max number arguments to a macro          */
  26 #define NINCLUDE    48      /* Max number of include directories (-I)   */
  27 #define NIF         64      /* depth of nesting of #if                  */
  28 #define NINC        32      /* depth of nesting of #include             */
  29
  30 #ifndef EOF
  31 #define EOF (-1)
  32 #endif
  33
  34 #ifndef NULL
  35 #define NULL    0
  36 #endif
  37
  38 typedef unsigned char uchar;
  39
  40 enum toktype
  41 {
  42     END, UNCLASS, NAME, NUMBER, STRING, CCON, NL, WS, DSHARP,
  43     EQ, NEQ, LEQ, GEQ, LSH, RSH, LAND, LOR, PPLUS, MMINUS,
  44     ARROW, SBRA, SKET, LP, RP, DOT, AND, STAR, PLUS, MINUS,
  45     TILDE, NOT, SLASH, PCT, LT, GT, CIRC, OR, QUEST,
  46     COLON, ASGN, COMMA, SHARP, SEMIC, CBRA, CKET,
  47     ASPLUS, ASMINUS, ASSTAR, ASSLASH, ASPCT, ASCIRC, ASLSH,
  48     ASRSH, ASOR, ASAND, ELLIPS,
  49     DSHARP1, NAME1, NAME2, DEFINED, UMINUS, ARCHITECTURE,
  50     COMMENT
  51 };
  52
  53 enum kwtype
  54 {
  55     KIF, KIFDEF, KIFNDEF, KELIF, KELSE, KENDIF, KINCLUDE, KINCLUDENEXT,
  56     KIMPORT, KDEFINE, KUNDEF, KLINE, KERROR, KPRAGMA, KIDENT, KDEFINED,
  57     KMACHINE, KLINENO, KFILE, KDATE, KTIME, KSTDC, KEVAL
  58 };
  59
  60 extern void setup_kwtab(void);
  61
  62 #define ISDEFINED       0x01            /* has #defined value */
  63 #define ISKW            0x02            /* is PP keyword */
  64 #define ISUNCHANGE      0x04            /* can't be #defined in PP */
  65 #define ISMAC           0x08            /* builtin macro, e.g. __LINE__ */
  66 #define ISARCHITECTURE  0x10            /* architecture */
  67 #define ISACTIVE        0x80            /* is macro currently expanded */
  68
  69 #define EOB     0xFE                    /* sentinel for end of input buffer */
  70 #define EOFC    0xFD                    /* sentinel for end of input file */
  71 #define XPWS    1                       /* token flag: white space to assure token sep. */
  72 #define XTWS    2
  73
  74 typedef struct token
  75 {
  76     unsigned char type;
  77     size_t wslen;
  78     size_t len;
  79     uchar *t;
  80     unsigned int identifier;            /* used from macro processor to identify where a macro becomes valid again. */
  81 }   Token;
  82
  83 typedef struct tokenrow
  84 {
  85     Token *tp;                          /* current one to scan */
  86     Token *bp;                          /* base (allocated value) */
  87     Token *lp;                          /* last+1 token used */
  88     size_t max;                         /* number allocated */
  89 }   Tokenrow;
  90
  91 typedef struct source
  92 {
  93     char *filename;                     /* name of file of the source */
  94     int line;                           /* current line number */
  95     int lineinc;                        /* adjustment for \\n lines */
  96     uchar *inb;                         /* input buffer */
  97     uchar *inp;                         /* input pointer */
  98     uchar *inl;                         /* end of input */
  99     int fd;                             /* input source */
 100     int ifdepth;                        /* conditional nesting in include */
 101     int pathdepth;
 102     int wrap;
 103     struct source *next;                /* stack for #include */
 104 }   Source;
 105
 106 typedef struct nlist
 107 {
 108     struct nlist *next;
 109     uchar *name;
 110     size_t len;
 111     Tokenrow *vp;                       /* value as macro */
 112     Tokenrow *ap;                       /* list of argument names, if any */
 113     char val;                           /* value as preprocessor name */
 114     char flag;                          /* is defined, is pp name */
 115     uchar *loc;                         /* location of definition */
 116 }   Nlist;
 117
 118 typedef struct includelist
 119 {
 120     char deleted;
 121     char always;
 122     char *file;
 123 }   Includelist;
 124
 125 typedef struct wraplist
 126 {
 127     char *file;
 128 }   Wraplist;
 129
 130 #define new(t)  (t *)domalloc(sizeof(t))
 131 #define quicklook(a,b)  (namebit[(a)&077] & (1U<<((b)&037)))
 132 #define quickset(a,b)   namebit[(a)&077] |= (1U<<((b)&037))
 133 extern unsigned long namebit[077 + 1];
 134
 135 enum errtype
 136 {
 137     INFO, WARNING, ERROR, FATAL
 138 };
 139
 140
 141 typedef struct macroValidator
 142 {
 143     Nlist *             pMacro;
 144     unsigned int        nTokenWhereMacroBecomesValid;
 145     struct macroValidator *
 146                         pNext;
 147 } MacroValidator;
 148 typedef struct mvl
 149 {
 150     MacroValidator * pFirst;
 151     unsigned int     nextFreeIdentifier;
 152 } MacroValidatorList;
 153
 154 void        mvl_init(
 155                 MacroValidatorList *
 156                                 out_pValidators);
 157 void        mvl_destruct(
 158                 MacroValidatorList *
 159                                 out_pValidators);
 160 /*  Adds MacroValidator to the list.
 161 */
 162 void        mvl_add(
 163                 MacroValidatorList *
 164                                 inout_pValidators,
 165                 Nlist *         in_pMacro,
 166                 Token *         in_pTokenWhereMacroBecomesValid);
 167
 168 /*  Checks if one of the validators within the list points to
 169     the token in_pTokenToCheck. If so, the macro is set valid and
 170     the validator is removed.
 171 */
 172 void        mvl_check(
 173                 MacroValidatorList *
 174                                 inout_pValidators,
 175                 Token const *   inout_pTokenToCheck);
 176
 177 void tokenrow_zeroTokenIdentifiers(Tokenrow* trp);
 178
 179 void expandlex(void);
 180 void fixlex(void);
 181 void setup(int, char **);
 182 int gettokens(Tokenrow *, int);
 183 int comparetokens(Tokenrow *, Tokenrow *);
 184 Source *setsource(char *, int, int, char const *, int);
 185 void unsetsource(void);
 186 void puttokens(Tokenrow *);
 187 void process(Tokenrow *);
 188 void *domalloc(size_t);
 189 void dofree(void *);
 190 void error(enum errtype, char *,...);
 191 void flushout(void);
 192 int fillbuf(Source *);
 193 int trigraph(Source *);
 194 int foldline(Source *);
 195 Nlist *lookup(Token *, int);
 196 void control(Tokenrow *);
 197 void dodefine(Tokenrow *);
 198 void doadefine(Tokenrow *, int);
 199 void doinclude(Tokenrow *, int, int);
 200 void expand(Tokenrow *, Nlist *, MacroValidatorList *);
 201 void builtin(Tokenrow *, int);
 202 int gatherargs(Tokenrow *, Tokenrow **, int *);
 203 void substargs(Nlist *, Tokenrow *, Tokenrow **);
 204 void expandrow(Tokenrow *, char *);
 205 void maketokenrow(int, Tokenrow *);
 206 Tokenrow *copytokenrow(Tokenrow *, Tokenrow const *);
 207 Token *growtokenrow(Tokenrow *);
 208 Tokenrow *normtokenrow(Tokenrow *);
 209 void adjustrow(Tokenrow *, int);
 210 void movetokenrow(Tokenrow *, Tokenrow const *);
 211 void insertrow(Tokenrow *, int, Tokenrow const *);
 212 void peektokens(Tokenrow *, char *);
 213 void doconcat(Tokenrow *);
 214 Tokenrow *stringify(Tokenrow *);
 215 int lookuparg(Nlist *, Token const *);
 216 long eval(Tokenrow *, int);
 217 void genline(void);
 218 void genimport(char const *, int, char const *, int);
 219 void genwrap(int);
 220 void setempty(Tokenrow *);
 221 void makespace(Tokenrow *, Token const *);
 222 char *outnum(char *, int);
 223 int digit(int);
 224 uchar *newstring(uchar const *, size_t, size_t);
 225
 226 #define rowlen(tokrow)  ((tokrow)->lp - (tokrow)->bp)
 227
 228 extern char *outptr;
 229 extern Token nltoken;
 230 extern Source *cursource;
 231 extern char *curtime;
 232 extern int incdepth;
 233 extern int ifdepth;
 234 extern int ifsatisfied[NIF];
 235 extern int Mflag;
 236 extern int Iflag;
 237 extern int Pflag;
 238 extern int Aflag;
 239 extern int Lflag;
 240 extern int Xflag;
 241 extern int Vflag;
 242 extern int Cflag;
 243 extern int Dflag;
 244 extern int Cplusplus;
 245 extern int skipping;
 246 extern Nlist *kwdefined;
 247 extern Includelist includelist[NINCLUDE];
 248 extern Wraplist wraplist[NINCLUDE];
 249 extern char wd[];
 250
 251 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */