250 lines
6.4 KiB
C
250 lines
6.4 KiB
C
/******************************************************************************
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* FREXXWARE
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* ----------------------------------------------------------------------------
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*
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* Project: Frexx C Preprocessor
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* $Source: /home/user/start/cpp/RCS/cpp.h,v $
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* $Revision: 1.3 $
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* $Date: 1993/12/06 13:51:20 $
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* $Author: start $
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* $State: Exp $
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* $Locker: start $
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*
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* ----------------------------------------------------------------------------
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* $Log: cpp.h,v $
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* Revision 1.3 1993/12/06 13:51:20 start
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* A lot of new stuff (too much to mention)
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*
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* Revision 1.2 1993/11/11 07:16:39 start
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* New stuff
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*
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* Revision 1.2 1993/11/11 07:16:39 start
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* New stuff
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*
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* Revision 1.1 1993/11/03 09:15:59 start
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* Initial revision
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*
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*
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*****************************************************************************/
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/*
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* I n t e r n a l D e f i n i t i o n s f o r C P P
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*
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* In general, definitions in this file should not be changed.
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*/
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#include <stdlib.h>
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#include <string.h>
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#ifndef toupper
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#define toupper(c) ((c) + ('A' - 'a'))
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#endif /* no toupper */
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#ifndef tolower
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#define tolower(c) ((c) + ('a' - 'A'))
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#endif /* no tolower */
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#ifndef TRUE
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#define TRUE 1
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#define FALSE 0
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#endif
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#ifndef EOS
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/*
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* This is predefined in Decus C
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*/
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#define EOS '\0' /* End of string */
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#endif
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#define EOF_CHAR 0 /* Returned by get() on eof */
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#define NULLST ((char *) NULL) /* Pointer to nowhere (linted) */
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#define DEF_NOARGS (-1) /* #define foo vs #define foo() */
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/*
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* The following may need to change if the host system doesn't use ASCII.
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*/
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#define QUOTE_PARM 0x1C /* Magic quoting operator */
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#define DEF_MAGIC 0x1D /* Magic for #defines */
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#define TOK_SEP 0x1E /* Token concatenation delim. */
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#define COM_SEP 0x1F /* Magic comment separator */
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/*
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* Note -- in Ascii, the following will map macro formals onto DEL + the
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* C1 control character region (decimal 128 .. (128 + PAR_MAC)) which will
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* be ok as long as PAR_MAC is less than 33). Note that the last PAR_MAC
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* value is reserved for string substitution.
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*/
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#define MAC_PARM 0x7F /* Macro formals start here */
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#ifndef OS9
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#if (PAR_MAC >= 33)
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#error "assertion fails -- PAR_MAC isn't less than 33"
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#endif
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#endif
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#define LASTPARM (PAR_MAC - 1)
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/*
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* Character type codes.
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*/
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#define INV 0 /* Invalid, must be zero */
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#define OP_EOE INV /* End of expression */
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#define DIG 1 /* Digit */
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#define LET 2 /* Identifier start */
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#define FIRST_BINOP OP_ADD
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#define OP_ADD 3
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#define OP_SUB 4
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#define OP_MUL 5
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#define OP_DIV 6
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#define OP_MOD 7
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#define OP_ASL 8
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#define OP_ASR 9
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#define OP_AND 10 /* &, not && */
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#define OP_OR 11 /* |, not || */
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#define OP_XOR 12
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#define OP_EQ 13
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#define OP_NE 14
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#define OP_LT 15
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#define OP_LE 16
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#define OP_GE 17
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#define OP_GT 18
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#define OP_ANA 19 /* && */
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#define OP_ORO 20 /* || */
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#define OP_QUE 21 /* ? */
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#define OP_COL 22 /* : */
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#define OP_CMA 23 /* , (relevant?) */
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#define LAST_BINOP OP_CMA /* Last binary operand */
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/*
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* The following are unary.
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*/
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#define FIRST_UNOP OP_PLU /* First Unary operand */
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#define OP_PLU 24 /* + (draft ANSI standard) */
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#define OP_NEG 25 /* - */
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#define OP_COM 26 /* ~ */
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#define OP_NOT 27 /* ! */
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#define LAST_UNOP OP_NOT
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#define OP_LPA 28 /* ( */
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#define OP_RPA 29 /* ) */
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#define OP_END 30 /* End of expression marker */
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#define OP_MAX (OP_END + 1) /* Number of operators */
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#define OP_FAIL (OP_END + 1) /* For error returns */
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/*
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* The following are for lexical scanning only.
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*/
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#define QUO 65 /* Both flavors of quotation */
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#define DOT 66 /* . might start a number */
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#define SPA 67 /* Space and tab */
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#define BSH 68 /* Just a backslash */
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#define END 69 /* EOF */
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/*
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* These bits are set in ifstack[]
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*/
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#define WAS_COMPILING 1 /* TRUE if compile set at entry */
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#define ELSE_SEEN 2 /* TRUE when #else processed */
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#define TRUE_SEEN 4 /* TRUE when #if TRUE processed */
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/*
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* Define bits for the basic types and their adjectives
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*/
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#define T_CHAR 1
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#define T_INT 2
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#define T_FLOAT 4
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#define T_DOUBLE 8
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#define T_SHORT 16
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#define T_LONG 32
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#define T_SIGNED 64
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#define T_UNSIGNED 128
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#define T_PTR 256 /* Pointer */
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#define T_FPTR 512 /* Pointer to functions */
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/*
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* The DEFBUF structure stores information about #defined
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* macros. Note that the defbuf->repl information is always
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* in malloc storage.
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*/
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typedef struct defbuf {
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struct defbuf *link; /* Next define in chain */
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char *repl; /* -> replacement */
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int hash; /* Symbol table hash */
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int nargs; /* For define(args) */
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char name[1]; /* #define name */
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} DEFBUF;
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/*
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* The FILEINFO structure stores information about open files
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* and macros being expanded.
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*/
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typedef struct fileinfo {
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char *bptr; /* Buffer pointer */
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int line; /* for include or macro */
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FILE *fp; /* File if non-null */
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struct fileinfo *parent; /* Link to includer */
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char *filename; /* File/macro name */
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char *progname; /* From #line statement */
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unsigned int unrecur; /* For macro recursion */
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char buffer[1]; /* current input line */
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} FILEINFO;
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/*
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* The SIZES structure is used to store the values for #if sizeof
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*/
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typedef struct sizes {
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short bits; /* If this bit is set, */
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short size; /* this is the datum size value */
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short psize; /* this is the pointer size */
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} SIZES;
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/*
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* nomacarg is a built-in #define on Decus C.
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*/
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#ifdef nomacarg
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#define cput generate /* cput concatenates tokens */
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#else
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#if COMMENT_INVISIBLE
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#define cput(c) { if (c != TOK_SEP && c != COM_SEP) putchar(c); }
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#else
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#define cput(c) { if (c != TOK_SEP) putchar(c); }
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#endif
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#endif
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#ifndef nomacarg
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#define streq(s1, s2) (strcmp(s1, s2) == 0)
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#endif
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/*
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* Note: IO_NORMAL and IO_ERROR are defined in the Decus C stdio.h file
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*/
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#ifndef IO_NORMAL
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#define IO_NORMAL 0
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#endif
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#ifndef IO_ERROR
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#define IO_ERROR 1
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#endif
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/*
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* Externs
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*/
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#include "fpp.h" /* structs and defines */
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#include "cppadd.h" /* Added prototypes for ANSI complience! */
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#ifdef AMIGA
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#include <dos.h>
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extern int _OSERR;
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#endif
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extern char type[]; /* Character classifier */
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#define compiling global->ifstack[0]
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#if DEBUG
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extern int debug; /* Debug level */
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#endif
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extern SIZES size_table[]; /* For #if sizeof sizes */
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#define MAX_SPACE_SIZE 512 /* maximum number of whitespaces possible
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to remember */
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