/* -*-C-*- * IDL Compiler * * Copyright 2002 Ove Kaaven * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ %option stack %option noinput nounput noyy_top_state %option 8bit never-interactive prefix="parser_" nl \r?\n ws [ \f\t\r] cident [a-zA-Z_][0-9a-zA-Z_]* u_suffix (u|U) l_suffix (l|L) int [0-9]+({l_suffix}?{u_suffix}?|{u_suffix}?{l_suffix}?)? hexd [0-9a-fA-F] hex 0(x|X){hexd}+({l_suffix}?{u_suffix}?|{u_suffix}?{l_suffix}?)? uuid {hexd}{8}-{hexd}{4}-{hexd}{4}-{hexd}{4}-{hexd}{12} double [0-9]+\.[0-9]+([eE][+-]?[0-9]+)* %x QUOTE %x WSTRQUOTE %x ATTR %x PP_LINE %x PP_PRAGMA %x SQUOTE %{ #include "config.h" #include "wine/port.h" #include <stdio.h> #include <stdlib.h> #include <string.h> #include <ctype.h> #include <assert.h> #include <errno.h> #include <limits.h> #ifdef HAVE_UNISTD_H #include <unistd.h> #else #define YY_NO_UNISTD_H #endif #include "widl.h" #include "utils.h" #include "parser.h" #include "wine/wpp.h" #include "parser.tab.h" static void addcchar(char c); static char *get_buffered_cstring(void); static char *cbuffer; static int cbufidx; static int cbufalloc = 0; static int kw_token(const char *kw); static int attr_token(const char *kw); #define MAX_IMPORT_DEPTH 10 struct { YY_BUFFER_STATE state; char *input_name; int line_number; char *temp_name; } import_stack[MAX_IMPORT_DEPTH]; int import_stack_ptr = 0; /* converts an integer in string form to an unsigned long and prints an error * on overflow */ static unsigned int xstrtoul(const char *nptr, char **endptr, int base) { unsigned long val; errno = 0; val = strtoul(nptr, endptr, base); if ((val == ULONG_MAX && errno == ERANGE) || ((unsigned int)val != val)) error_loc("integer constant %s is too large\n", nptr); return val; } UUID *parse_uuid(const char *u) { UUID* uuid = xmalloc(sizeof(UUID)); char b[3]; /* it would be nice to use UuidFromStringA */ uuid->Data1 = strtoul(u, NULL, 16); uuid->Data2 = strtoul(u+9, NULL, 16); uuid->Data3 = strtoul(u+14, NULL, 16); b[2] = 0; memcpy(b, u+19, 2); uuid->Data4[0] = strtoul(b, NULL, 16); memcpy(b, u+21, 2); uuid->Data4[1] = strtoul(b, NULL, 16); memcpy(b, u+24, 2); uuid->Data4[2] = strtoul(b, NULL, 16); memcpy(b, u+26, 2); uuid->Data4[3] = strtoul(b, NULL, 16); memcpy(b, u+28, 2); uuid->Data4[4] = strtoul(b, NULL, 16); memcpy(b, u+30, 2); uuid->Data4[5] = strtoul(b, NULL, 16); memcpy(b, u+32, 2); uuid->Data4[6] = strtoul(b, NULL, 16); memcpy(b, u+34, 2); uuid->Data4[7] = strtoul(b, NULL, 16); return uuid; } %} /* ************************************************************************** * The flexer starts here ************************************************************************** */ %% <INITIAL>^{ws}*\#{ws}*pragma{ws}+ yy_push_state(PP_PRAGMA); <INITIAL,ATTR>^{ws}*\#{ws}* yy_push_state(PP_LINE); <PP_LINE>[^\n]* { int lineno; char *cptr, *fname; yy_pop_state(); lineno = (int)strtol(yytext, &cptr, 10); if(!lineno) error_loc("Malformed '#...' line-directive; invalid linenumber\n"); fname = strchr(cptr, '"'); if(!fname) error_loc("Malformed '#...' line-directive; missing filename\n"); fname++; cptr = strchr(fname, '"'); if(!cptr) error_loc("Malformed '#...' line-directive; missing terminating \"\n"); *cptr = '\0'; line_number = lineno - 1; /* We didn't read the newline */ input_name = xstrdup(fname); } <PP_PRAGMA>midl_echo[^\n]* yyless(9); yy_pop_state(); return tCPPQUOTE; <PP_PRAGMA>winrt[^\n]* { if(import_stack_ptr) { if(!winrt_mode) error_loc("winrt IDL file imported in non-winrt mode\n"); }else { const char *ptr = yytext+5; winrt_mode = TRUE; while(isspace(*ptr)) ptr++; if(!strncmp(ptr, "ns_prefix", 9) && (!*(ptr += 9) || isspace(*ptr))) use_abi_namespace = TRUE; } yy_pop_state(); } <PP_PRAGMA>[^\n]* parser_lval.str = xstrdup(yytext); yy_pop_state(); return aPRAGMA; <INITIAL,ATTR>\" yy_push_state(QUOTE); cbufidx = 0; <QUOTE>\" { yy_pop_state(); parser_lval.str = get_buffered_cstring(); return aSTRING; } <INITIAL,ATTR>L\" yy_push_state(WSTRQUOTE); cbufidx = 0; <WSTRQUOTE>\" { yy_pop_state(); parser_lval.str = get_buffered_cstring(); return aWSTRING; } <INITIAL,ATTR>\' yy_push_state(SQUOTE); cbufidx = 0; <SQUOTE>\' { yy_pop_state(); parser_lval.str = get_buffered_cstring(); return aSQSTRING; } <QUOTE,WSTRQUOTE,SQUOTE>\\\\ | <QUOTE,WSTRQUOTE>\\\" addcchar(yytext[1]); <SQUOTE>\\\' addcchar(yytext[1]); <QUOTE,WSTRQUOTE,SQUOTE>\\. addcchar('\\'); addcchar(yytext[1]); <QUOTE,WSTRQUOTE,SQUOTE>. addcchar(yytext[0]); <INITIAL,ATTR>\[ yy_push_state(ATTR); return '['; <ATTR>\] yy_pop_state(); return ']'; <ATTR>{cident} return attr_token(yytext); <ATTR>{uuid} { parser_lval.uuid = parse_uuid(yytext); return aUUID; } <INITIAL,ATTR>{hex} { parser_lval.num = xstrtoul(yytext, NULL, 0); return aHEXNUM; } <INITIAL,ATTR>{int} { parser_lval.num = xstrtoul(yytext, NULL, 0); return aNUM; } <INITIAL>{double} { parser_lval.dbl = strtod(yytext, NULL); return aDOUBLE; } SAFEARRAY{ws}*/\( return tSAFEARRAY; {cident} return kw_token(yytext); <INITIAL,ATTR>\n line_number++; <INITIAL,ATTR>{ws} <INITIAL,ATTR>\<\< return SHL; <INITIAL,ATTR>\>\> return SHR; <INITIAL,ATTR>\-\> return MEMBERPTR; <INITIAL,ATTR>== return EQUALITY; <INITIAL,ATTR>!= return INEQUALITY; <INITIAL,ATTR>\>= return GREATEREQUAL; <INITIAL,ATTR>\<= return LESSEQUAL; <INITIAL,ATTR>\|\| return LOGICALOR; <INITIAL,ATTR>&& return LOGICALAND; <INITIAL,ATTR>\.\.\. return ELLIPSIS; <INITIAL,ATTR>. return yytext[0]; <<EOF>> { if (import_stack_ptr) return aEOF; else yyterminate(); } %% #ifndef parser_wrap int parser_wrap(void) { return 1; } #endif struct keyword { const char *kw; int token; }; /* This table MUST be alphabetically sorted on the kw field */ static const struct keyword keywords[] = { {"FALSE", tFALSE}, {"NULL", tNULL}, {"TRUE", tTRUE}, {"__cdecl", tCDECL}, {"__fastcall", tFASTCALL}, {"__int3264", tINT3264}, {"__int64", tINT64}, {"__pascal", tPASCAL}, {"__stdcall", tSTDCALL}, {"_cdecl", tCDECL}, {"_fastcall", tFASTCALL}, {"_pascal", tPASCAL}, {"_stdcall", tSTDCALL}, {"boolean", tBOOLEAN}, {"byte", tBYTE}, {"case", tCASE}, {"cdecl", tCDECL}, {"char", tCHAR}, {"coclass", tCOCLASS}, {"const", tCONST}, {"cpp_quote", tCPPQUOTE}, {"default", tDEFAULT}, {"dispinterface", tDISPINTERFACE}, {"double", tDOUBLE}, {"enum", tENUM}, {"error_status_t", tERRORSTATUST}, {"extern", tEXTERN}, {"float", tFLOAT}, {"handle_t", tHANDLET}, {"hyper", tHYPER}, {"import", tIMPORT}, {"importlib", tIMPORTLIB}, {"inline", tINLINE}, {"int", tINT}, {"interface", tINTERFACE}, {"library", tLIBRARY}, {"long", tLONG}, {"methods", tMETHODS}, {"module", tMODULE}, {"namespace", tNAMESPACE}, {"pascal", tPASCAL}, {"properties", tPROPERTIES}, {"register", tREGISTER}, {"short", tSHORT}, {"signed", tSIGNED}, {"sizeof", tSIZEOF}, {"small", tSMALL}, {"static", tSTATIC}, {"stdcall", tSTDCALL}, {"struct", tSTRUCT}, {"switch", tSWITCH}, {"typedef", tTYPEDEF}, {"union", tUNION}, {"unsigned", tUNSIGNED}, {"void", tVOID}, {"wchar_t", tWCHAR}, }; #define NKEYWORDS (sizeof(keywords)/sizeof(keywords[0])) /* keywords only recognized in attribute lists * This table MUST be alphabetically sorted on the kw field */ static const struct keyword attr_keywords[] = { {"aggregatable", tAGGREGATABLE}, {"allocate", tALLOCATE}, {"annotation", tANNOTATION}, {"apartment", tAPARTMENT}, {"appobject", tAPPOBJECT}, {"async", tASYNC}, {"async_uuid", tASYNCUUID}, {"auto_handle", tAUTOHANDLE}, {"bindable", tBINDABLE}, {"both", tBOTH}, {"broadcast", tBROADCAST}, {"byte_count", tBYTECOUNT}, {"call_as", tCALLAS}, {"callback", tCALLBACK}, {"code", tCODE}, {"comm_status", tCOMMSTATUS}, {"context_handle", tCONTEXTHANDLE}, {"context_handle_noserialize", tCONTEXTHANDLENOSERIALIZE}, {"context_handle_serialize", tCONTEXTHANDLENOSERIALIZE}, {"control", tCONTROL}, {"decode", tDECODE}, {"defaultbind", tDEFAULTBIND}, {"defaultcollelem", tDEFAULTCOLLELEM}, {"defaultvalue", tDEFAULTVALUE}, {"defaultvtable", tDEFAULTVTABLE}, {"disable_consistency_check", tDISABLECONSISTENCYCHECK}, {"displaybind", tDISPLAYBIND}, {"dllname", tDLLNAME}, {"dual", tDUAL}, {"enable_allocate", tENABLEALLOCATE}, {"encode", tENCODE}, {"endpoint", tENDPOINT}, {"entry", tENTRY}, {"explicit_handle", tEXPLICITHANDLE}, {"fault_status", tFAULTSTATUS}, {"force_allocate", tFORCEALLOCATE}, {"free", tFREE}, {"handle", tHANDLE}, {"helpcontext", tHELPCONTEXT}, {"helpfile", tHELPFILE}, {"helpstring", tHELPSTRING}, {"helpstringcontext", tHELPSTRINGCONTEXT}, {"helpstringdll", tHELPSTRINGDLL}, {"hidden", tHIDDEN}, {"id", tID}, {"idempotent", tIDEMPOTENT}, {"ignore", tIGNORE}, {"iid_is", tIIDIS}, {"immediatebind", tIMMEDIATEBIND}, {"implicit_handle", tIMPLICITHANDLE}, {"in", tIN}, {"in_line", tIN_LINE}, {"input_sync", tINPUTSYNC}, {"lcid", tLCID}, {"length_is", tLENGTHIS}, {"licensed", tLICENSED}, {"local", tLOCAL}, {"maybe", tMAYBE}, {"message", tMESSAGE}, {"neutral", tNEUTRAL}, {"nocode", tNOCODE}, {"nonbrowsable", tNONBROWSABLE}, {"noncreatable", tNONCREATABLE}, {"nonextensible", tNONEXTENSIBLE}, {"notify", tNOTIFY}, {"notify_flag", tNOTIFYFLAG}, {"object", tOBJECT}, {"odl", tODL}, {"oleautomation", tOLEAUTOMATION}, {"optimize", tOPTIMIZE}, {"optional", tOPTIONAL}, {"out", tOUT}, {"partial_ignore", tPARTIALIGNORE}, {"pointer_default", tPOINTERDEFAULT}, {"progid", tPROGID}, {"propget", tPROPGET}, {"propput", tPROPPUT}, {"propputref", tPROPPUTREF}, {"proxy", tPROXY}, {"ptr", tPTR}, {"public", tPUBLIC}, {"range", tRANGE}, {"readonly", tREADONLY}, {"ref", tREF}, {"represent_as", tREPRESENTAS}, {"requestedit", tREQUESTEDIT}, {"restricted", tRESTRICTED}, {"retval", tRETVAL}, {"single", tSINGLE}, {"size_is", tSIZEIS}, {"source", tSOURCE}, {"strict_context_handle", tSTRICTCONTEXTHANDLE}, {"string", tSTRING}, {"switch_is", tSWITCHIS}, {"switch_type", tSWITCHTYPE}, {"threading", tTHREADING}, {"transmit_as", tTRANSMITAS}, {"uidefault", tUIDEFAULT}, {"unique", tUNIQUE}, {"user_marshal", tUSERMARSHAL}, {"usesgetlasterror", tUSESGETLASTERROR}, {"uuid", tUUID}, {"v1_enum", tV1ENUM}, {"vararg", tVARARG}, {"version", tVERSION}, {"vi_progid", tVIPROGID}, {"wire_marshal", tWIREMARSHAL}, }; /* attributes TODO: custom first_is last_is max_is min_is */ #define KWP(p) ((const struct keyword *)(p)) static int kw_cmp_func(const void *s1, const void *s2) { return strcmp(KWP(s1)->kw, KWP(s2)->kw); } static int kw_token(const char *kw) { struct keyword key, *kwp; key.kw = kw; kwp = bsearch(&key, keywords, NKEYWORDS, sizeof(keywords[0]), kw_cmp_func); if (kwp && (winrt_mode || kwp->token != tNAMESPACE)) { parser_lval.str = xstrdup(kwp->kw); return kwp->token; } parser_lval.str = xstrdup(kw); return is_type(kw) ? aKNOWNTYPE : aIDENTIFIER; } static int attr_token(const char *kw) { struct keyword key, *kwp; key.kw = kw; kwp = bsearch(&key, attr_keywords, sizeof(attr_keywords)/sizeof(attr_keywords[0]), sizeof(attr_keywords[0]), kw_cmp_func); if (kwp) { parser_lval.str = xstrdup(kwp->kw); return kwp->token; } return kw_token(kw); } static void addcchar(char c) { if(cbufidx >= cbufalloc) { cbufalloc += 1024; cbuffer = xrealloc(cbuffer, cbufalloc * sizeof(cbuffer[0])); if(cbufalloc > 65536) parser_warning("Reallocating string buffer larger than 64kB\n"); } cbuffer[cbufidx++] = c; } static char *get_buffered_cstring(void) { addcchar(0); return xstrdup(cbuffer); } void pop_import(void) { int ptr = import_stack_ptr-1; fclose(yyin); yy_delete_buffer( YY_CURRENT_BUFFER ); yy_switch_to_buffer( import_stack[ptr].state ); if (temp_name) { unlink(temp_name); free(temp_name); } temp_name = import_stack[ptr].temp_name; input_name = import_stack[ptr].input_name; line_number = import_stack[ptr].line_number; import_stack_ptr--; } struct imports { char *name; struct imports *next; } *first_import; int do_import(char *fname) { FILE *f; char *path, *name; struct imports *import; int ptr = import_stack_ptr; int ret, fd; import = first_import; while (import && strcmp(import->name, fname)) import = import->next; if (import) return 0; /* already imported */ import = xmalloc(sizeof(struct imports)); import->name = xstrdup(fname); import->next = first_import; first_import = import; /* don't search for a file name with a path in the include directories, * for compatibility with MIDL */ if (strchr( fname, '/' ) || strchr( fname, '\\' )) path = xstrdup( fname ); else if (!(path = wpp_find_include( fname, input_name ))) error_loc("Unable to open include file %s\n", fname); import_stack[ptr].temp_name = temp_name; import_stack[ptr].input_name = input_name; import_stack[ptr].line_number = line_number; import_stack_ptr++; input_name = path; line_number = 1; name = xstrdup( "widl.XXXXXX" ); if((fd = mkstemps( name, 0 )) == -1) error("Could not generate a temp name from %s\n", name); temp_name = name; if (!(f = fdopen(fd, "wt"))) error("Could not open fd %s for writing\n", name); ret = wpp_parse( path, f ); fclose( f ); if (ret) exit(1); if((f = fopen(temp_name, "r")) == NULL) error_loc("Unable to open %s\n", temp_name); import_stack[ptr].state = YY_CURRENT_BUFFER; yy_switch_to_buffer(yy_create_buffer(f, YY_BUF_SIZE)); return 1; } void abort_import(void) { int ptr; for (ptr=0; ptr<import_stack_ptr; ptr++) unlink(import_stack[ptr].temp_name); }