/*********************************************************************** * * * This software is part of the ast package * * Copyright (c) 1986-2007 AT&T Knowledge Ventures * * and is licensed under the * * Common Public License, Version 1.0 * * by AT&T Knowledge Ventures * * * * A copy of the License is available at * * http://www.opensource.org/licenses/cpl1.0.txt * * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * * * * Information and Software Systems Research * * AT&T Research * * Florham Park NJ * * * * Glenn Fowler * * * ***********************************************************************/ #pragma prototyped /* * Glenn Fowler * AT&T Research * * preprocessor library public definitions */ #ifndef _PP_H #define _PP_H #ifdef ppsymbol /* * undo old nmake cpp name-space intrusion * this disables __LINE__, __FILE__, __DATE__ and __TIME__ */ #undef ppsymbol #undef __LINE__ #define __LINE__ 0 #undef __FILE__ #define __FILE__ "libpp" #undef __DATE__ #define __DATE__ "MMM DD YYYY" #undef __TIME__ #define __TIME__ "HH:MM:SS" #endif #if PROTOMAIN #define HASH_HEADER int hash_header #define Hash_table_t char #define Sfio_t char #define CC_bel (('A'==0301)?0057:0007) #define CC_esc (('A'==0301)?0047:0033) #define CC_vt 0013 #else #include #include #include #include #endif #define PPDEFAULT "pp_default.h" /* runtime definitions */ #define PPPROBE "cc" /* default probe key */ #define PPSTANDARD "/usr/include" /* standard include dir */ #define PPBLKSIZ 1024 /* unit block size */ #define PPBAKSIZ (1*PPBLKSIZ) /* input pushback size */ #define PPBUFSIZ (32*PPBLKSIZ) /* io buffer size */ #define PPTOKSIZ ((PPBUFSIZ/2)-1) /* max token size */ #define PPWRITE(n) do{if(write(1,pp.outbuf,n)!=(n))pperror(ERROR_SYSTEM|3,"%s: write error",pp.outfile);pp.offset+=(n);pp.lastout=pp.outbuf[n-1];}while(0) #define pplastout() ((pp.outp>pp.outbuf)?*(pp.outp-1):pp.lastout) #define ppoffset() (pp.offset+pppendout()) #define pppendout() (pp.outp-pp.outbuf) #define ppputchar(c) (*pp.outp++=(c)) #define ppflushout() do{if(pp.outp>pp.outbuf){PPWRITE(pp.outp-pp.outbuf);pp.outp=pp.outbuf;}}while(0) #define ppcheckout() do{if(pp.outp>pp.oute){PPWRITE(PPBUFSIZ);if(pp.outbuf==pp.outb){pp.outbuf+=PPBUFSIZ;pp.oute+=PPBUFSIZ;}else{pp.outbuf-=PPBUFSIZ;memcpy(pp.outbuf,pp.oute,pp.outp-pp.oute);pp.oute-=PPBUFSIZ;pp.outp-=2*PPBUFSIZ;}}}while(0) #define ppsymget(t,n) (struct ppsymbol*)hashlook(t,n,HASH_LOOKUP,NiL) #define ppsymref(t,n) (struct ppsymbol*)hashlook(t,n,pp.truncate?HASH_LOOKUP:HASH_LOOKUP|HASH_INTERNAL,NiL) #define ppsymset(t,n) (struct ppsymbol*)hashlook(t,n,HASH_CREATE|HASH_SIZE(sizeof(struct ppsymbol)),NiL) #if CHAR_MIN < 0 #define pptype (ppctype-(CHAR_MIN)+1) #else #define pptype (ppctype) #endif #define C_ID (1<<0) #define C_DIG (1<<1) #define C_SPLICE (1<<2) #define ppisdig(c) ((pptype)[c]&C_DIG) #define ppisid(c) ((pptype)[c]&C_ID) #define ppisidig(c) ((pptype)[c]&(C_ID|C_DIG)) #define ppismac(c) ((pptype)[c]&(C_ID|C_DIG|C_SPLICE)) #define ppissplice(c) ((pptype)[c]&C_SPLICE) #define setid(c) ((pptype)[c]|=C_ID) #define clrid(c) ((pptype)[c]&=~C_ID) #define setdig(c) ((pptype)[c]|=C_DIG) #define setsplice(c) ((pptype)[c]|=C_SPLICE) #define REF_CREATE (REF_NORMAL+1) /* include wrapper (internal) */ #define REF_DELETE (REF_NORMAL+2) /* macro definition (internal) */ #define REF_NORMAL 0 /* normal macro reference */ #define REF_IF (-1) /* if, ifdef, ifndef, elif */ #define REF_UNDEF (-2) /* undef */ #define SYM_ACTIVE (1L<<0) /* active macro lock */ #define SYM_BUILTIN (1L<<1) /* builtin macro */ #define SYM_DISABLED (1L<<2) /* macro expansion disabled */ #define SYM_EMPTY (1L<<3) /* allow empty/missing actuals */ #define SYM_FINAL (1L<<4) /* final hosted value */ #define SYM_FUNCTION (1L<<5) /* macro with args */ #define SYM_INIT (1L<<6) /* initialization macro */ #define SYM_INITIAL (1L<<7) /* initial hosted value */ #define SYM_KEYWORD (1L<<8) /* keyword identifier */ #define SYM_LEX (1L<<9) /* ppsymkey with lex field */ #define SYM_MULTILINE (1L<<10) /* multi-line macro */ #define SYM_NOEXPAND (1L<<11) /* no identifiers in macro body */ #define SYM_NOTICED (1L<<12) /* symbol noticed in output */ #define SYM_PREDEFINED (1L<<13) /* predefined macro */ #define SYM_PREDICATE (1L<<14) /* also a predicate */ #define SYM_READONLY (1L<<15) /* readonly macro */ #define SYM_REDEFINE (1L<<16) /* ok to redefine */ #define SYM_VARIADIC (1L<<17) /* variadic macro with args */ #define SYM_UNUSED 24 /* first unused symbol flag bit */ #define PP_ASSERT 1 /* preassert symbol */ #define PP_BUILTIN 2 /* #() handler */ #define PP_CDIR 3 /* C (vs. C++) file dirs follow */ #define PP_CHOP 4 /* include prefix chop */ #define PP_COMMENT 5 /* passed comment handler */ #define PP_COMPATIBILITY 6 /* old (Reiser) dialect */ #define PP_COMPILE 7 /* tokenize for front end */ #define PP_DEBUG 8 /* set debug trace level */ #define PP_DEFINE 9 /* predefine symbol */ #define PP_DEFAULT 10 /* read default include files */ #define PP_DIRECTIVE 11 /* initialization directive */ #define PP_DONE 12 /* all processing done */ #define PP_DUMP 13 /* do checkpoint dump */ #define PP_FILEDEPS 14 /* output file dependencies */ #define PP_FILENAME 15 /* set input file name */ #define PP_HOSTDIR 16 /* hosted file dirs follow */ #define PP_ID 17 /* add to identifier set */ #define PP_IGNORE 18 /* ignore this include file */ #define PP_IGNORELIST 19 /* include ignore list file */ #define PP_INCLUDE 20 /* add dir to include search */ #define PP_INCREF 21 /* include file push/ret handler*/ #define PP_INIT 22 /* one time initialization */ #define PP_INPUT 23 /* set input source file */ #define PP_KEYARGS 24 /* name=value macro args */ #define PP_LINE 25 /* line sync handler */ #define PP_LINEBASE 26 /* base name in line sync */ #define PP_LINEFILE 27 /* line sync requires file arg */ #define PP_LINEID 28 /* PP_LINE directive id */ #define PP_LINETYPE 29 /* # extra line sync type args */ #define PP_LOCAL 30 /* previous PP_INCLUDE for "" */ #define PP_MACREF 31 /* macro def/ref handler */ #define PP_MULTIPLE 32 /* set all files multiple */ #define PP_NOHASH 33 /* don't hash PP_COMPILE T_ID's */ #define PP_NOISE 34 /* convert T_X_* to T_NOISE */ #define PP_OPTION 35 /* set pragma option */ #define PP_OPTARG 36 /* unknown option arg handler */ #define PP_OUTPUT 37 /* set output file sink */ #define PP_PASSTHROUGH 38 /* ppcpp() expands # lines only */ #define PP_PEDANTIC 39 /* pedantic non-hosted warnings */ #define PP_PLUSCOMMENT 40 /* enable C++ comments */ #define PP_PLUSPLUS 41 /* tokenize for C++ */ #define PP_POOL 42 /* pool for multiple io passes */ #define PP_PRAGMA 43 /* passed pragma handler */ #define PP_PRAGMAFLAGS 44 /* global pragma flags */ #define PP_PROBE 45 /* ppdefault probe key */ #define PP_QUOTE 46 /* add to quote set */ #define PP_READ 47 /* include file without output */ #define PP_REGUARD 48 /* file pop emits guard define */ #define PP_RESERVED 49 /* COMPILE reserved keyword */ #define PP_RESET 50 /* reset to initiali predefs */ #define PP_SPACEOUT 51 /* pplex returns space,newline */ #define PP_STANDALONE 52 /* standalone preprocessor */ #define PP_STANDARD 53 /* standard include dir */ #define PP_STRICT 54 /* strict implementation */ #define PP_TEST 55 /* enable (undocumented) tests */ #define PP_TEXT 56 /* include file with output */ #define PP_TRANSITION 57 /* on COMPATIBILITY boundary */ #define PP_TRUNCATE 58 /* truncate macro names */ #define PP_UNDEF 59 /* undef symbol after ppdefault */ #define PP_VENDOR 60 /* vendor file dirs follow */ #define PP_WARN 61 /* enable annoying warnings */ #define PP_comment (1<<0) /* PP_COMMENT is set */ #define PP_compatibility (1<<1) /* PP_COMPATIBILITY is set */ #define PP_hosted (1<<2) /* current file is hosted */ #define PP_linebase (1<<3) /* base name in line sync */ #define PP_linefile (1<<4) /* line sync file arg required */ #define PP_linehosted (1<<5) /* line sync hosted arg required*/ #define PP_lineignore (1<<6) /* line sync for ignored file */ #define PP_linetype (1<<7) /* line sync type arg required */ #define PP_strict (1<<8) /* PP_STRICT is set */ #define PP_transition (1<<9) /* PP_TRANSITION is set */ #define PP_deps (1<<0) /* generate header deps */ #define PP_deps_file (1<<1) /* write deps to separate file */ #define PP_deps_generated (1<<2) /* missing deps are generated */ #define PP_deps_local (1<<3) /* only local header deps */ #define PP_sync 0 /* normal line sync */ #define PP_sync_push '1' /* [3] include file push */ #define PP_sync_pop '2' /* [3] include file pop */ #define PP_sync_ignore '3' /* [3] ignored include file */ #define PP_sync_hosted '3' /* [4] hosted include file */ #define PP_SYNC_PUSH (1<<0) /* pp.incref PP_sync_push type */ #define PP_SYNC_POP (1<<1) /* pp.incref PP_sync_pop type */ #define PP_SYNC_IGNORE (1<<2) /* pp.incref PP_sync_ignore type*/ #define PP_SYNC_HOSTED (1<<3) /* pp.incref PP_sync_hosted type*/ #define PP_SYNC_INSERT (1<<4) /* pinserted by other means */ /* * numeric modifiers * * NOTE: 0400 is claimed by error in yacc * (N_PP+30) is the largest valid pp token * free tokens start at T_TOKEN */ #define N_PP 0401 /* pp tokens 0401..0437 */ #define N_NUMBER 0440 /* numbers 0440..0477 */ #define N_TEST (N_NUMBER|07700)/* number test mask */ #define N_TOKEN 0500 /* free 0500..07777 */ #define N_WIDE 1 /* wide quoted constant */ /* * NOTE: preserve the token ranges and encodings for is*(x) */ #define ppisnumber(x) (((x)&N_TEST)==N_NUMBER) #define ppisinteger(x) (((x)&(N_TEST|N_REAL))==N_NUMBER) #define ppisreal(x) (((x)&(N_TEST|N_REAL))==(N_NUMBER|N_REAL)) #define ppisassignop(x) (((x)>=T_MPYEQ)&&((x)<=T_OREQ)) #define ppisseparate(x) (((x)>=N_PP)&&((x)<=T_WSTRING)||((x)>=N_NUMBER)||((x)=='+')||((x)=='-')) #define N_LONG 0001 #define N_UNSIGNED 0002 /* if ppisinteger(x) */ #define N_FLOAT 0002 /* if ppisreal(x) */ #define N_REAL 0004 #define N_OCTAL 0010 #define N_HEXADECIMAL 0020 #define N_EXPONENT 010000 /* for lexing only */ #define N_SIGN 020000 /* for lexing only */ #define N_TRAILING 040000 /* for lexing only */ #if !defined(T_DOUBLE) /* * numeric constants */ #define T_DOUBLE (N_NUMBER|N_REAL) #define T_DOUBLE_L (N_NUMBER|N_REAL|N_LONG) #define T_FLOAT (N_NUMBER|N_REAL|N_FLOAT) #define T_DECIMAL (N_NUMBER) #define T_DECIMAL_L (N_NUMBER|N_LONG) #define T_DECIMAL_U (N_NUMBER|N_UNSIGNED) #define T_DECIMAL_UL (N_NUMBER|N_UNSIGNED|N_LONG) #define T_OCTAL (N_NUMBER|N_OCTAL) #define T_OCTAL_L (N_NUMBER|N_OCTAL|N_LONG) #define T_OCTAL_U (N_NUMBER|N_OCTAL|N_UNSIGNED) #define T_OCTAL_UL (N_NUMBER|N_OCTAL|N_UNSIGNED|N_LONG) #define T_HEXADECIMAL (N_NUMBER|N_HEXADECIMAL) #define T_HEXADECIMAL_L (N_NUMBER|N_HEXADECIMAL|N_LONG) #define T_HEXADECIMAL_U (N_NUMBER|N_HEXADECIMAL|N_UNSIGNED) #define T_HEXADECIMAL_UL (N_NUMBER|N_HEXADECIMAL|N_UNSIGNED|N_LONG) #define T_HEXDOUBLE (N_NUMBER|N_HEXADECIMAL|N_REAL) #define T_HEXDOUBLE_L (N_NUMBER|N_HEXADECIMAL|N_REAL|N_LONG) /* * identifier and invalid token */ #define T_ID (N_PP+0) #define T_INVALID (N_PP+1) /* * quoted constants */ #define T_HEADER (N_PP+2) /* <..> */ #define T_CHARCONST (N_PP+3) /* '..' */ #define T_WCHARCONST (T_CHARCONST|N_WIDE) /* L'..' */ #define T_STRING (N_PP+5) /* ".." */ #define T_WSTRING (T_STRING|N_WIDE) /* L".." */ /* * multichar operators */ #define T_PTRMEM (N_PP+7) /* -> */ #define T_ADDADD (N_PP+8) /* ++ */ #define T_SUBSUB (N_PP+9) /* -- */ #define T_LSHIFT (N_PP+10) /* << */ #define T_RSHIFT (N_PP+11) /* >> */ #define T_LE (N_PP+12) /* <= */ #define T_GE (N_PP+13) /* >= */ #define T_EQ (N_PP+14) /* == */ #define T_NE (N_PP+15) /* != */ #define T_ANDAND (N_PP+16) /* && */ #define T_OROR (N_PP+17) /* || */ #define T_MPYEQ (N_PP+18) /* *= */ #define T_DIVEQ (N_PP+19) /* /= */ #define T_MODEQ (N_PP+20) /* %= */ #define T_ADDEQ (N_PP+21) /* += */ #define T_SUBEQ (N_PP+22) /* -= */ #define T_LSHIFTEQ (N_PP+23) /* <<= */ #define T_RSHIFTEQ (N_PP+24) /* >>= */ #define T_ANDEQ (N_PP+25) /* &= */ #define T_XOREQ (N_PP+26) /* ^= */ #define T_OREQ (N_PP+27) /* |= */ #define T_TOKCAT (N_PP+28) /* ## */ #define T_VARIADIC (N_PP+29) /* ... */ /* * C++ tokens */ #define T_DOTREF (N_TOKEN+0) /* .* */ #define T_PTRMEMREF (N_TOKEN+1) /* ->* */ #define T_SCOPE (N_TOKEN+2) /* :: */ /* * compiler tokens */ #define T_UMINUS (N_TOKEN+3) #endif /* * start of free tokens */ #define T_TOKEN (N_TOKEN+4) struct ppdirs /* directory list */ { char* name; /* directory name */ struct ppdirs* next; /* next in list */ #ifdef _PP_DIRS_PRIVATE_ _PP_DIRS_PRIVATE_ #endif }; struct ppkeyword /* pp keyword info */ { char* name; /* keyword name */ int value; /* keyword token value */ }; struct ppmacro /* pp macro info */ { int arity; /* # formal arguments */ char* value; /* definition value */ #ifdef _PP_MACRO_PRIVATE_ _PP_MACRO_PRIVATE_ #endif }; struct ppsymbol /* pp symbol info */ { HASH_HEADER; /* hash stuff and symbol name */ unsigned long flags; /* SYM_* status */ struct ppmacro* macro; /* macro info */ void* value; /* value (for other passes) */ #ifdef _PP_SYMBOL_PRIVATE_ _PP_SYMBOL_PRIVATE_ #endif }; #define _PP_CONTEXT_BASE_ ((char*)&pp.lcldirs) #define _PP_CONTEXT_PUBLIC_ \ struct ppdirs* lcldirs; /* the "..." dir list */ \ struct ppdirs* stddirs; /* next is the <...> dir list */ \ int flags; /* PP_[a-z]* flags */ \ Hash_table_t* symtab; /* macro and id hash table */ struct ppglobals /* globals accessed by pp.* */ { const char* version; /* version stamp */ char* lineid; /* line sync directive id */ char* outfile; /* output file name */ char* pass; /* pass name */ char* token; /* pplex() token name */ struct ppsymbol* symbol; /* last symbol if PP_COMPILE */ /* exposed for the output macros */ char* outb; /* output buffer base */ char* outbuf; /* output buffer */ char* outp; /* outbuf pointer */ char* oute; /* outbuf end */ unsigned long offset; /* output offset */ #ifdef _PP_CONTEXT_PUBLIC_ _PP_CONTEXT_PUBLIC_ /* public context */ #endif #ifdef _PP_CONTEXT_PRIVATE_ _PP_CONTEXT_PRIVATE_ /* library private context */ #endif #ifdef _PP_GLOBALS_PRIVATE_ _PP_GLOBALS_PRIVATE_ /* library private additions */ #endif }; /* * library interface globals */ #define ppctype _pp_ctype extern struct ppglobals pp; extern char ppctype[]; extern int ppargs(char**, int); extern void ppcpp(void); extern void ppcomment(char*, char*, char*, int); extern void* ppcontext(void*, int); extern void pperror(int, ...); extern void ppincref(char*, char*, int, int); extern void ppinput(char*, char*, int); extern int pplex(void); extern void ppline(int, char*); extern void ppmacref(struct ppsymbol*, char*, int, int, unsigned long); extern void ppop(int, ...); extern void pppragma(char*, char*, char*, char*, int); extern int ppprintf(char*, ...); extern int ppsync(void); #endif