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7960b42c90
bgfx/3rdparty/fcpp/cppadd.h
Lectem 7960b42c90 Fix shaderc leaks (#1313) 
* Fix fcpp memory leaks

* Fix glsl_optimizer leaks
2018-01-13 10:08:03 -08:00

415 lines
14 KiB
C
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/******************************************************************************
* FREXXWARE
* ----------------------------------------------------------------------------
*
* Project: Frexx C Preprocessor
* $Source: /home/user/start/cpp/RCS/cppadd.h,v $
* $Revision: 1.5 $
* $Date: 1994/01/24 09:38:12 $
* $Author: start $
* $State: Exp $
* $Locker: start $
*
* ----------------------------------------------------------------------------
* $Log: cppadd.h,v $
* Revision 1.5 1994/01/24 09:38:12 start
* Added the 'rightconcat' in the global structure.
*
* Revision 1.4 1993/12/06 13:51:20 start
* A lot of new stuff (too much to mention)
*
* Revision 1.3 1993/11/29 14:01:13 start
* New features added
*
* Revision 1.2 1993/11/11 07:16:39 start
* New stuff
*
* Revision 1.1 1993/11/03 09:15:59 start
* Initial revision
*
*
*****************************************************************************/
/**********************************************************************
*
* cppadd.h
*
* Prototypes and structures added by Daniel Stenberg.
*
*******/
#include <stdarg.h>
#include "memory.h"
struct Global {
/*
* Commonly used global variables:
* line is the current input line number.
* wrongline is set in many places when the actual output
* line is out of sync with the numbering, e.g,
* when expanding a macro with an embedded newline.
*
* tokenbuf holds the last identifier scanned (which might
* be a candidate for macro expansion).
* errors is the running cpp error counter.
* infile is the head of a linked list of input files (extended by
* #include and macros being expanded). infile always points
* to the current file/macro. infile->parent to the includer,
* etc. infile->fd is NULL if this input stream is a macro.
*/
int line; /* Current line number */
int wrongline; /* Force #line to compiler */
char *tokenbuf; /* Buffer for current input token */
char *functionname; /* Buffer for current function */
int funcline; /* Line number of current function */
int tokenbsize; /* Allocated size of tokenbuf, */
/* not counting zero at end. */
int errors; /* cpp error counter */
FILEINFO *infile; /* Current input file */
#if DEBUG
int debug; /* TRUE if debugging now */
#endif
/*
* This counter is incremented when a macro expansion is initiated.
* If it exceeds a built-in value, the expansion stops -- this tests
* for a runaway condition:
* #define X Y
* #define Y X
* X
* This can be disabled by falsifying rec_recover. (Nothing does this
* currently: it is a hook for an eventual invocation flag.)
*/
int recursion; /* Infinite recursion counter */
int rec_recover; /* Unwind recursive macros */
/*
* instring is set TRUE when a string is scanned. It modifies the
* behavior of the "get next character" routine, causing all characters
* to be passed to the caller (except <DEF_MAGIC>). Note especially that
* comments and \<newline> are not removed from the source. (This
* prevents cpp output lines from being arbitrarily long).
*
* inmacro is set by #define -- it absorbs comments and converts
* form-feed and vertical-tab to space, but returns \<newline>
* to the caller. Strictly speaking, this is a bug as \<newline>
* shouldn't delimit tokens, but we'll worry about that some other
* time -- it is more important to prevent infinitly long output lines.
*
* instring and inmarcor are parameters to the get() routine which
* were made global for speed.
*/
int instring; /* TRUE if scanning string */
int inmacro; /* TRUE if #defining a macro */
/*
* work[] and workp are used to store one piece of text in a temporay
* buffer. To initialize storage, set workp = work. To store one
* character, call save(c); (This will fatally exit if there isn't
* room.) To terminate the string, call save(EOS). Note that
* the work buffer is used by several subroutines -- be sure your
* data won't be overwritten. The extra byte in the allocation is
* needed for string formal replacement.
*/
char work[NWORK + 1]; /* Work buffer */
char *workp; /* Work buffer pointer */
/*
* keepcomments is set TRUE by the -C option. If TRUE, comments
* are written directly to the output stream. This is needed if
* the output from cpp is to be passed to lint (which uses commands
* embedded in comments). cflag contains the permanent state of the
* -C flag. keepcomments is always falsified when processing #control
* commands and when compilation is supressed by a false #if
*
* If eflag is set, CPP returns "success" even if non-fatal errors
* were detected.
*
* If nflag is non-zero, no symbols are predefined except __LINE__.
* __FILE__, and __DATE__. If nflag > 1, absolutely no symbols
* are predefined.
*/
char keepcomments; /* Write out comments flag */
char cflag; /* -C option (keep comments) */
char eflag; /* -E option (never fail) */
char nflag; /* -N option (no predefines) */
char wflag; /* -W option (write #defines) */
/*
* ifstack[] holds information about nested #if's. It is always
* accessed via *ifptr. The information is as follows:
* WAS_COMPILING state of compiling flag at outer level.
* ELSE_SEEN set TRUE when #else seen to prevent 2nd #else.
* TRUE_SEEN set TRUE when #if or #elif succeeds
* ifstack[0] holds the compiling flag. It is TRUE if compilation
* is currently enabled. Note that this must be initialized TRUE.
*/
char ifstack[BLK_NEST]; /* #if information */
char *ifptr; /* -> current ifstack[] */
/*
* incdir[] stores the -i directories (and the system-specific
* #include <...> directories.
*/
char *incdir[NINCLUDE]; /* -i directories */
char **incend; /* -> free space in incdir[] */
/*
* include[] stores the -X and -x files.
*/
char *include[NINCLUDE];
char includeshow[NINCLUDE]; /* show it or not! */
char included;
/*
* This is the table used to predefine target machine and operating
* system designators. It may need hacking for specific circumstances.
* Note: it is not clear that this is part of the Ansi Standard.
* The -B option supresses preset definitions.
*/
char *preset[5]; /* names defined at cpp start */
/*
* The value of these predefined symbols must be recomputed whenever
* they are evaluated. The order must not be changed.
*/
char *magic[5]; /* Note: order is important */
/*
* This is the variable saying if Cpp should remove C++ style comments from
* the output. Default is... TRUE, yes, pronto, do it!!!
*/
char cplusplus;
char *sharpfilename;
/*
* parm[], parmp, and parlist[] are used to store #define() argument
* lists. nargs contains the actual number of parameters stored.
*/
char parm[NPARMWORK + 1]; /* define param work buffer */
char *parmp; /* Free space in parm */
char *parlist[LASTPARM]; /* -> start of each parameter */
int nargs; /* Parameters for this macro */
DEFBUF *macro; /* Catches start of infinite macro */
DEFBUF *symtab[SBSIZE]; /* Symbol table queue headers */
int evalue; /* Current value from evallex() */
void (*depends)(char *filename, void *); /* depends function */
char *(*input)(char *, int, void *); /* Input function */
char *first_file; /* Preprocessed file. */
void *userdata; /* Data sent to input function */
void (*output)(int, void *); /* output function */
void (*error)(void *, char *, va_list); /* error function */
char linelines;
char warnillegalcpp; /* warn for illegal preprocessor instructions? */
char outputLINE; /* output 'line' in #line instructions */
char showversion; /* display version */
char showincluded; /* display included files */
char showbalance; /* display paren balance */
char showspace; /* display all whitespaces as they are */
char comment; /* TRUE if a comment just has been written to output */
char *spacebuf; /* Buffer to store whitespaces in if -H */
long chpos; /* Number of whitespaces in buffer */
char nestcomments; /* Allow nested comments */
char warnnestcomments; /* Warn at nested comments */
char warnnoinclude; /* Warn at missing include file */
char outputfile; /* output the main file */
char out; /* should we output anything now? */
char rightconcat; /* should the right part of a concatenation be avaluated
before the concat (TRUE) or after (FALSE) */
char *initialfunc; /* file to include first in all functions */
char *excludedinit[20]; /* functions (names) excluded from the initfunc */
int excluded;
char outputfunctions; /* output all discovered functions to stderr! */
char webmode; /* WWW process mode */
};
typedef enum {
ERROR_STRING_MUST_BE_IF,
ERROR_STRING_MAY_NOT_FOLLOW_ELSE,
ERROR_ERROR,
ERROR_PREPROC_FAILURE,
ERROR_MISSING_ARGUMENT,
ERROR_INCLUDE_SYNTAX,
ERROR_DEFINE_SYNTAX,
ERROR_REDEFINE,
ERROR_ILLEGAL_UNDEF,
ERROR_RECURSIVE_MACRO,
ERROR_EOF_IN_ARGUMENT,
ERROR_MISPLACED_CONSTANT,
ERROR_IF_OVERFLOW,
ERROR_ILLEGAL_IF_LINE,
ERROR_OPERATOR,
ERROR_EXPR_OVERFLOW,
ERROR_UNBALANCED_PARENS,
ERROR_MISPLACED,
ERROR_STRING_IN_IF,
ERROR_DEFINED_SYNTAX,
ERROR_ILLEGAL_ASSIGN,
ERROR_ILLEGAL_BACKSLASH,
ERROR_SIZEOF_SYNTAX,
ERROR_SIZEOF_UNKNOWN,
ERROR_SIZEOF_ILLEGAL_TYPE,
ERROR_SIZEOF_NO_TYPE,
ERROR_UNTERMINATED_STRING,
ERROR_EOF_IN_COMMENT,
ERROR_IFDEF_DEPTH,
ERROR_ILLEGAL_CHARACTER,
ERROR_ILLEGAL_CHARACTER2,
ERROR_SIZEOF_BUG,
ERROR_IF_OPERAND,
ERROR_STRANG_CHARACTER,
ERROR_STRANG_CHARACTER2,
BORDER_ERROR_WARN, /* below this number: errors, above: warnings */
WARN_CONTROL_LINE_IN_MACRO,
WARN_ILLEGAL_COMMAND,
WARN_UNEXPECTED_TEXT_IGNORED,
WARN_TOO_FEW_VALUES_TO_SIZEOF,
WARN_TOO_MANY_VALUES_TO_SIZEOF,
WARN_NOT_DEFINED,
WARN_INTERNAL_ERROR,
WARN_MACRO_NEEDS_ARGUMENTS,
WARN_WRONG_NUMBER_ARGUMENTS,
WARN_DIVISION_BY_ZERO,
WARN_ILLEGAL_OCTAL,
WARN_MULTIBYTE_NOT_PORTABLE,
WARN_CANNOT_OPEN_INCLUDE,
WARN_BRACKET_DEPTH,
WARN_PAREN_DEPTH,
WARN_BRACE_DEPTH,
WARN_NESTED_COMMENT,
BORDER_WARN_FATAL, /* below this number: warnings, above: fatals */
FATAL_TOO_MANY_NESTINGS,
FATAL_FILENAME_BUFFER_OVERFLOW,
FATAL_TOO_MANY_INCLUDE_DIRS,
FATAL_TOO_MANY_INCLUDE_FILES,
FATAL_TOO_MANY_ARGUMENTS_MACRO,
FATAL_MACRO_AREA_OVERFLOW,
FATAL_ILLEGAL_MACRO,
FATAL_TOO_MANY_ARGUMENTS_EXPANSION,
FATAL_OUT_OF_SPACE_IN_ARGUMENT,
FATAL_WORK_AREA_OVERFLOW,
FATAL_WORK_BUFFER_OVERFLOW,
FATAL_OUT_OF_MEMORY,
FATAL_TOO_MUCH_PUSHBACK
} ErrorCode;
/**********************************************************************
* RETURN CODES:
*********************************************************************/
typedef enum {
FPP_OK,
FPP_OUT_OF_MEMORY,
FPP_TOO_MANY_NESTED_STATEMENTS,
FPP_FILENAME_BUFFER_OVERFLOW,
FPP_NO_INCLUDE,
FPP_OPEN_ERROR,
FPP_TOO_MANY_ARGUMENTS,
FPP_WORK_AREA_OVERFLOW,
FPP_ILLEGAL_MACRO,
FPP_EOF_IN_MACRO,
FPP_OUT_OF_SPACE_IN_MACRO_EXPANSION,
FPP_ILLEGAL_CHARACTER,
FPP_CANT_USE_STRING_IN_IF,
FPP_BAD_IF_DEFINED_SYNTAX,
FPP_IF_ERROR,
FPP_SIZEOF_ERROR,
FPP_UNTERMINATED_STRING,
FPP_TOO_MANY_INCLUDE_DIRS,
FPP_TOO_MANY_INCLUDE_FILES,
FPP_INTERNAL_ERROR,
FPP_LAST_ERROR
} ReturnCode;
/* Nasty defines to make them appear as three different functions! */
#define cwarn cerror
#define cfatal cerror
/**********************************************************************
* PROTOTYPES:
*********************************************************************/
int PREFIX fppPreProcess(REG(a0) struct fppTag *);
void Freemem(void *);
void Error(struct Global *, char *, ...);
void Putchar(struct Global *, int);
void Putstring(struct Global *, char *);
void Putint(struct Global *, int);
char *savestring(struct Global *, char *);
ReturnCode addfile(struct Global *, FILE *, char *);
int catenate(struct Global *, ReturnCode *);
void cerror(struct Global *, ErrorCode, ...);
ReturnCode control(struct Global *, int *);
ReturnCode dodefine(struct Global *);
int dooptions(struct Global *, struct fppTag *);
void doundef(struct Global *);
void dumpparm(char *);
ReturnCode expand(struct Global *, DEFBUF *);
int get(struct Global *);
ReturnCode initdefines(struct Global *);
void outdefines(struct Global *);
ReturnCode save(struct Global *, int);
void scanid(struct Global *, int);
ReturnCode scannumber(struct Global *, int, ReturnCode(*)(struct Global *, int));
ReturnCode scanstring(struct Global *, int, ReturnCode(*)(struct Global *, int));
void unget(struct Global *);
ReturnCode ungetstring(struct Global *, char *);
ReturnCode eval(struct Global *, int *);
#ifdef DEBUG_EVAL
void dumpstack(OPTAB[NEXP], register OPTAB *, int [NEXP], register int *);
#endif
void skipnl(struct Global *);
int skipws(struct Global *);
ReturnCode macroid(struct Global *, int *);
ReturnCode getfile(struct Global *, size_t, char *, FILEINFO **);
DEFBUF *lookid(struct Global *, int );
DEFBUF *defendel(struct Global *, char *, int);
#if DEBUG
void dumpdef(char *);
void dumpadef(char *, register DEFBUF *);
#endif
ReturnCode openfile(struct Global *,char *);
int cget(struct Global *);
void delbuiltindefines(struct Global *);
void delalldefines(struct Global *);
char *Getmem(struct Global *, int);
ReturnCode openinclude(struct Global *, char *, int);
ReturnCode expstuff(struct Global *, char *, char *);
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