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/*-
* Copyright (c) 1998, 2002-2008 Kiyoshi Matsui <kmatsui@t3.rim.or.jp>
* All rights reserved.
*
* Some parts of this code are derived from the public domain software
* DECUS cpp (1984,1985) written by Martin Minow.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* I N T E R N A L . H
* I n t e r n a l D e f i n i t i o n s f o r M C P P
*
* In general, definitions in this file should not be changed by implementor.
*/
#ifndef SYSTEM_H
#error "system.H" must be included prior to "internal.H"
#endif
#include "mcpp_out.h"
#if MCPP_LIB
#include "mcpp_lib.h" /* External interface when used as library */
#endif
#define EOS '\0' /* End of string */
#define CHAR_EOF 0 /* Returned by get_ch() on eof */
#define VA_ARGS (UCHARMAX + 1) /* Signal of variable arguments */
#define GVA_ARGS (VA_ARGS * 2) /* GCC-specific variable args */
#define AVA_ARGS (VA_ARGS | GVA_ARGS)/* Any variable arguments */
#define DEF_PRAGMA (-1 - AVA_ARGS) /* _Pragma() pseudo-macro */
#define DEF_NOARGS (-2 - AVA_ARGS) /* #define foo vs #define foo() */
#define DEF_NOARGS_PREDEF_OLD (DEF_NOARGS - 1)
/* Compiler-predefined macro without leading '_' */
#define DEF_NOARGS_PREDEF (DEF_NOARGS - 2)/* Compiler-predefined macro */
#define DEF_NOARGS_STANDARD (DEF_NOARGS - 3)/* Standard predefined macro */
#define DEF_NOARGS_DYNAMIC (DEF_NOARGS - 4)/* Standard dynamically defined */
/*
* These magic characters must be control characters which can't be used
* in source file.
*/
/* for '#pragma MCPP debug macro_call' and -K option in STD mode. */
#define MAC_INF 0x18 /* Magic for macro informations */
/* In STD and POST_STD modes (IN_SRC and TOK_SEP are for STD mode only). */
#define DEF_MAGIC 0x19 /* Magic to prevent recursive expansion */
#define IN_SRC 0x1A /* Magic of name from source */
#define RT_END 0x1C /* Magic of macro rescan boundary */
#define ST_QUOTE 0x1D /* Magic for stringizing */
#define CAT 0x1E /* Token concatenation delim. */
#define TOK_SEP 0x1F /* Magic to wrap expanded macro */
/* In OLD_PREP mode. */
#define COM_SEP 0x1F /* Comment of 0-length */
#define MAC_PARM 0x7F /* Macro parameter signal */
/* Special character types */
#define LET 1 /* Letter (alphabet and _) */
#define DIG 2 /* Digit */
#define DOT 4 /* . might start a number */
#define PUNC 8 /* Punctuators and operators */
#define QUO 0x10 /* Both flavors of quotation ",'*/
#define SPA 0x20 /* White spaces */
#define HSP 0x40
/* Horizontal white spaces (' ', '\t', TOK_SEP) */
/*
* Codes for operators used in #if expression.
* The value of the scanned operator is stored in 'openum'.
*/
#define INV 0 /* Invalid, must be zero */
#define OP_EOE INV /* End of expression */
#define VAL 1 /* Value (operand) */
#define OP_LPA 2 /* ( */
/* The following are unary. */
#define FIRST_UNOP OP_PLU /* First unary operator */
#define OP_PLU 3 /* + */
#define OP_NEG 4 /* - */
#define OP_COM 5 /* ~ */
#define OP_NOT 6 /* ! */
#define LAST_UNOP OP_NOT /* Last unary operator */
/* The following are binary. */
#define FIRST_BINOP OP_MUL /* First binary operator */
#define OP_MUL 7 /* * */
#define OP_DIV 8 /* / */
#define OP_MOD 9 /* % */
#define OP_ADD 10 /* + */
#define OP_SUB 11 /* - */
#define OP_SL 12 /* << */
#define OP_SR 13 /* >> */
#define OP_LT 14 /* < */
#define OP_LE 15 /* <= */
#define OP_GT 16 /* > */
#define OP_GE 17 /* >= */
#define OP_EQ 18 /* == */
#define OP_NE 19 /* != */
#define OP_AND 20 /* & */
#define OP_XOR 21 /* ^ */
#define OP_OR 22 /* | */
#define OP_ANA 23 /* && */
#define OP_ORO 24 /* || */
#define OP_QUE 25 /* ? */
#define OP_COL 26 /* : */
#define LAST_BINOP OP_COL /* Last binary operator */
/* Parenthesis */
#define OP_RPA 27 /* ) */
#define OP_END 28 /* End of expression marker */
#define OP_FAIL (OP_END + 1) /* For error returns */
/*
* The following are operators used in macro definition only.
*/
/* In STD and POST_STD modes. */
#define OP_STR 30 /* # */
#define OP_CAT 31 /* ## */
#define OP_ELL 32 /* ... */
/*
* The following are C source operators or punctuators,
* not preprocessing operators.
* Note: "sizeof", "defined" are read as identifier for convenience.
*/
#define OP_1 33 /* Any other single byte ops or puncs */
/* =, ., ;, [, ], {, }, ',' */
#define OP_2 34 /* Any other two bytes operators */
/* &=, |=, ++, +=, --, -=, ->, %=, *=, /=, ^=, */
#define OP_3 35 /* Three bytes operators : <<=, >>= */
/*
* The following are operators spelled in digraphs.
*/
/* In STD and POST_STD modes. */
#define OP_LBRACE_D 0x40 /* <% i.e. { */
#define OP_RBRACE_D 0x41 /* %> i.e. } */
#define OP_LBRCK_D 0x42 /* <: i.e. [ */
#define OP_RBRCK_D 0x43 /* :> i.e. ] */
#define OP_SHARP_D 0x44 /* %: i.e. # */
#define OP_DSHARP_D 0x45 /* %:%: i.e. ## */
#define OP_DIGRAPH 0x40 /* (OP_*_D & OP_DIGRAPH) == 0x40 */
/*
* The following are for lexical scanning only.
*/
/* Token types */
#define NO_TOKEN 0
#define NAM 65 /* Identifier (name, keyword) */
#define NUM 66 /* Preprocessing number */
#define STR 67 /* Character string literal */
#define CHR 69 /* Integer character constant */
/* In STD and POST_STD modes. */
#define WSTR 68 /* Wide string literal */
#define WCHR 70 /* Wide character constant */
#define OPE 71 /* Operator or punctuator */
#define SPE 72 /* Unknown token (@ or others) */
#define SEP 73 /* Token separator or magics */
/*
* The following are values of 'mcpp_debug' variable which is set by the
* arguments of '#pragma MCPP debug' directive.
*/
#define PATH 1
#define TOKEN 2
#define EXPAND 4
#define MACRO_CALL 8
#define IF 16
#define EXPRESSION 32
#define GETC 64
#define MEMORY 128
/* MAC_* represent macro information types for -K option. */
#define MAC_CALL_START 1
#define MAC_CALL_END 2
#define MAC_ARG_START 3
#define MAC_ARG_END 4
/* MB_ERROR signals wrong multi-byte character sequence. */
#define MB_ERROR 0x8000
#if MCPP_LIB && HOST_COMPILER == GNUC \
&& (SYS_FAMILY == SYS_UNIX && SYSTEM != SYS_CYGWIN)
/* For GCC 4.* on UNIXes */
#pragma GCC visibility push( hidden) /* Hide these names from outside */
#endif
/*
* The DEFBUF structure stores information about #defined macros.
* Note that DEFBUF->parmnames is parameter names catenated with commas,
* which is saved for the check of redefinition for STD mode.
* 'parmnames' and 'repl' are allocated to the area succeding to name.
*/
typedef struct defbuf {
struct defbuf * link; /* Pointer to next def in chain */
short nargs; /* Number of parameters */
char * parmnames; /* -> Parameter names catenated by ',' */
char * repl; /* Pointer to replacement text */
const char * fname; /* Macro is defined in the source file */
long mline; /* at the line. */
char push; /* Push level indicator */
char name[1]; /* Macro name */
} DEFBUF;
/*
* The FILEINFO structure stores information about open files and macros
* being expanded.
*/
typedef struct fileinfo {
char * bptr; /* Current pointer into buffer */
long line; /* Current line number of file */
FILE * fp; /* Source file if non-null */
long pos; /* Position next to #include */
struct fileinfo * parent; /* Link to includer */
struct ifinfo * initif; /* Initial ifstack (return there on EOF)*/
int sys_header; /* System header file or not */
int include_opt; /* Specified by -include option */
const char ** dirp; /* Include directory the file resides */
char * src_dir; /* Directory of source file */
const char * real_fname; /* Real file name */
char * full_fname; /* Real full path list */
char * filename; /* File/macro name (maybe changed) */
char * buffer; /* Buffer of current input line */
#if MCPP_LIB
/* Save output functions during push/pop of #includes */
int (* last_fputc) ( int c, OUTDEST od);
int (* last_fputs) ( const char * s, OUTDEST od);
int (* last_fprintf)( OUTDEST od, const char * format, ...);
#endif
} FILEINFO;
/*
* IFINFO stores information of conditional compilation.
*/
typedef struct ifinfo {
int stat; /* State of compilation */
long ifline; /* Line #if started */
long elseline; /* Line #else started */
} IFINFO;
/*
* These bits are set in IFINFO.stat
*/
#define WAS_COMPILING 1 /* TRUE if compile set at entry */
#define ELSE_SEEN 2 /* TRUE when #else processed */
#define TRUE_SEEN 4 /* TRUE when #if TRUE processed */
#define compiling ifstack[0].stat
#define FP2DEST(fp) \
(fp == fp_out) ? OUT : \
((fp == fp_err) ? ERR : \
((fp == fp_debug) ? DBG : \
((OUTDEST) -1)))
/* VAL_SIGN structure stores information about evaluated number. */
typedef struct val_sign {
expr_t val; /* Value */
int sign; /* Signed, unsigned, error */
} VAL_SIGN;
/* Values of VAL_SIGN.sign. */
#define SIGNED 1
#define UNSIGNED 0
#define VAL_ERROR (-1)
/* LINE_COL stores information of line and column data */
typedef struct line_col {
long line;
size_t col;
} LINE_COL;
/* Value of macro_line on macro call error. */
#define MACRO_ERROR (-1L)
/*
* Values of insert_sep (flag of insertion of token separator).
* Used only in POST_STD mode.
*/
#define NO_SEP 0 /* No separator is inserted */
#define INSERT_SEP 1 /* Next get_ch() insert a separator */
#define INSERTED_SEP 2 /* Last get_ch() Inserted a separator */
#define str_eq(s1, s2) (strcmp(s1, s2) == 0)
#ifndef IO_SUCCESS
#define IO_SUCCESS 0
#endif
#ifndef IO_ERROR
#define IO_ERROR (errno ? errno : 1)
#endif
/*
* Externs
*/
/* The minimum translation limits specified by the Standards. */
extern struct std_limits_ {
long str_len; /* Least maximum of string len. */
size_t id_len; /* Least maximum of ident len. */
int n_mac_pars; /* Least maximum of num of pars.*/
int exp_nest; /* Least maximum of expr nest */
int blk_nest; /* Least maximum of block nest */
int inc_nest; /* Least maximum of include nest*/
long n_macro; /* Least maximum of num of macro*/
long line_num; /* Maximum source line number */
} std_limits;
/* The boolean flags specified by the execution options. */
extern struct option_flags_ {
int c; /* -C option (keep comments) */
int k; /* -k option (keep white spaces)*/
int z; /* -z option (no-output of included file) */
int p; /* -P option (no #line output) */
int q; /* -Q option (diag to mcpp.err) */
int v; /* -v option (verbose) */
int trig; /* -3 option (toggle trigraphs) */
int dig; /* -2 option (toggle digraphs) */
int lang_asm; /* -a option (assembler source) */
int no_source_line; /* Do not output line in diag. */
int dollar_in_name; /* Allow $ in identifiers */
} option_flags;
extern int mcpp_mode; /* Mode of preprocessing */
extern int stdc_val; /* Value of __STDC__ */
extern long stdc_ver; /* Value of __STDC_VERSION__ */
extern long cplus_val; /* Value of __cplusplus for C++ */
extern int stdc2; /* cplus_val or (stdc_ver >= 199901L) */
extern int stdc3; /* (stdc_ver or cplus_val) >= 199901L */
extern int standard; /* mcpp_mode is STD or POST_STD */
extern int std_line_prefix; /* #line in C source style */
extern int warn_level; /* Level of warning */
extern int errors; /* Error counter */
extern long src_line; /* Current source line number */
extern int wrong_line; /* Force #line to compiler */
extern int newlines; /* Count of blank lines */
extern int keep_comments; /* Don't remove comments */
extern int keep_spaces; /* Don't remove white spaces */
extern int include_nest; /* Nesting level of #include */
extern const char * null; /* "" string for convenience */
extern const char ** inc_dirp; /* Directory of #includer */
extern const char * cur_fname; /* Current source file name */
extern int no_output; /* Don't output included file */
extern int in_directive; /* In process of #directive */
extern int in_define; /* In #define line */
extern int in_getarg; /* Collecting arguments of macro*/
extern int in_include; /* In #include line */
extern int in_if; /* In #if and non-skipped expr. */
extern long macro_line; /* Line number of macro call */
extern char * macro_name; /* Currently expanding macro */
extern int openum; /* Number of operator or punct. */
extern IFINFO * ifptr; /* -> current ifstack item */
extern FILEINFO * infile; /* Current input file or macro */
extern FILE * fp_in; /* Input stream to preprocess */
extern FILE * fp_out; /* Output stream preprocessed */
extern FILE * fp_err; /* Diagnostics stream */
extern FILE * fp_debug; /* Debugging information stream */
extern int insert_sep; /* Inserted token separator flag*/
extern int mkdep; /* Output source file dependency*/
extern int mbchar; /* Encoding of multi-byte char */
extern int mbchk; /* Possible multi-byte char */
extern int bsl_in_mbchar; /* 2nd byte of mbchar has '\\' */
extern int bsl_need_escape;/* '\\' in mbchar should be escaped */
extern int mcpp_debug; /* Class of debug information */
extern long in_asm; /* In #asm - #endasm block */
extern jmp_buf error_exit; /* Exit on fatal error */
extern char * cur_fullname; /* Full name of current source */
extern short * char_type; /* Character classifier */
extern char * workp; /* Free space in work[] */
extern char * const work_end; /* End of work[] buffer */
extern char identifier[]; /* Lastly scanned name */
extern IFINFO ifstack[]; /* Information of #if nesting */
extern char work_buf[];
extern FILEINFO * sh_file;
extern int sh_line;
/* Temporary buffer for directive line and macro expansion */
/* main.c */
extern void un_predefine( int clearall);
/* Undefine predefined macros */
/* directive.c */
extern void directive( void);
/* Process #directive line */
extern DEFBUF * do_define( int ignore_redef, int predefine);
/* Do #define directive */
extern DEFBUF * look_id( const char * name);
/* Look for a #define'd thing */
extern DEFBUF ** look_prev( const char * name, int * cmp);
/* Look for place to insert def.*/
extern DEFBUF * look_and_install( const char * name, int numargs
, const char * parmnames, const char * repl);
/* Look and insert macro def. */
extern DEFBUF * install_macro( const char * name, int numargs
, const char * parmnames, const char * repl, DEFBUF ** prevp, int cmp
, int predefine);
/* Install a def to symbol table*/
extern int undefine( const char * name);
/* Delete from symbol table */
extern void dump_a_def( const char * why, const DEFBUF * dp, int newdef
, int comment, FILE * fp);
/* Dump a specific macro def */
extern void dump_def( int comment, int K_opt);
/* Dump current macro defs */
/* eval.c */
extern expr_t eval_if( void);
/* Evaluate #if expression */
extern VAL_SIGN * eval_num( const char * nump);
/* Evaluate preprocessing number*/
/* expand.c */
extern char * (* expand_macro)( DEFBUF * defp, char * out, char * out_end
, LINE_COL line_col, int * pragma_op);
/* Expand a macro completely */
extern void expand_init( int compat, int strict_ansi);
/* Initialize expand_macro() */
extern DEFBUF * is_macro( char ** cp);
/* The sequence is a macro call?*/
/* mbchar.c */
extern size_t (* mb_read)( int c1, char ** in_pp, char ** out_pp);
/* Read mbchar sequence */
extern const char * set_encoding( char * name, char * env, int pragma);
/* Multi-byte char encoding */
extern void mb_init( void);
/* Initialize mbchar variables */
extern uexpr_t mb_eval( char ** seq_pp);
/* Evaluate mbchar in #if */
extern int last_is_mbchar( const char * in, int len);
/* The line ends with MBCHAR ? */
/* support.c */
extern int get_unexpandable( int c, int diag);
/* Get next unexpandable token */
extern void skip_nl( void);
/* Skip to the end of the line */
extern int skip_ws( void);
/* Skip over white-spaces */
extern int scan_token( int c, char ** out_pp, char * out_end);
/* Get the next token */
extern char * scan_quote( int delim, char * out, char * out_end, int diag);
/* Scan a quoted literal */
extern int id_operator( const char * name);
/* Check identifier-like ops */
extern void expanding( const char * name, int to_be_freed);
/* Save macro name expanding */
extern void clear_exp_mac( void);
/* Clear expanding macro infs */
extern int get_ch( void);
/* Get the next char from input */
extern int cnv_trigraph( char * in);
/* Do trigraph replacement */
extern int cnv_digraph( char * in);
/* Convert digraphs to usual tok*/
extern void unget_ch( void);
/* Push back the char to input */
extern FILEINFO * unget_string( const char * text, const char * name);
/* Push back the string to input*/
extern char * save_string( const char * text);
/* Stuff string in malloc mem. */
extern FILEINFO * get_file( const char * name, const char * src_dir
, char * fullname, size_t bufsize, int include_opt);
/* New FILEINFO initialization */
extern char * (xmalloc)( size_t size);
/* Get memory or die */
extern char * (xrealloc)( char * ptr, size_t size);
/* Reallocate memory or die */
extern LINE_COL * get_src_location( LINE_COL * p_line_col);
/* Get location on source file */
extern void cfatal( const char * format, const char * arg1, long arg2
, const char * arg3);
/* Print a fatal error and exit */
extern void cerror( const char * format, const char * arg1, long arg2
, const char * arg3);
/* Print an error message */
extern void cwarn( const char * format, const char * arg1, long arg2
, const char * arg3);
/* Print a warning message */
extern void dump_string( const char * why, const char * text);
/* Dump text readably */
extern void dump_unget( const char * why);
/* Dump all ungotten junk */
/* Support for alternate output mechanisms (e.g. memory buffers) */
extern int (* mcpp_fputc)( int c, OUTDEST od),
(* mcpp_fputs)( const char * s, OUTDEST od),
(* mcpp_fprintf)( OUTDEST od, const char * format, ...);
/* system.c */
extern void do_options( int argc, char ** argv, char ** in_pp
, char ** out_pp);
/* Process command line args */
extern void init_sys_macro( void);
/* Define system-specific macro */
extern void at_start( void);
/* Commands prior to main input */
extern void put_depend( const char * filename);
/* Output source dependency line*/
extern int do_include( int next);
/* Process #include directive */
extern void add_file( FILE * fp, const char * src_dir
, char * filename, char * fullname, int include_opt);
/* Chain the included file */
extern void sharp( FILEINFO * sharp_file, int marker);
/* Output # line number */
extern void do_pragma( void);
/* Process #pragma directive */
extern void put_asm( void);
/* Putout an asm code line */
extern void do_old( void);
/* Process older directives */
extern void at_end( void);
/* Do the final commands */
extern void print_heap( void);
/* Print blocks of heap memory */
#if ! HOST_HAVE_STPCPY
extern char * stpcpy( char * dest, const char * src);
/* Non-Standard library function*/
#endif
#if MCPP_LIB /* Setting to use mcpp as a subroutine */
/* directive.c */
extern void clear_symtable( void);
/* Free all macro definitions */
/* system.c */
extern void clear_filelist( void);
/* Free filename and directory list */
/* The following 5 functions are to Initialize static variables. */
/* directive.c */
extern void init_directive( void);
/* eval.c */
extern void init_eval( void);
/* support.c */
extern void init_support( void);
/* system.c */
extern void init_system( void);
#if HOST_COMPILER == GNUC && (SYS_FAMILY == SYS_UNIX && SYSTEM != SYS_CYGWIN)
#pragma GCC visibility pop
#endif
#endif
#if HOST_HAVE_STPCPY && !defined(stpcpy)
extern char * stpcpy( char * dest, const char * src);
#endif
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