452 lines
13 KiB
C
452 lines
13 KiB
C
/* -*-C-*-
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* IDL Compiler
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*
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* Copyright 2002 Ove Kaaven
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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%option stack
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%option nounput noyy_top_state
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%option 8bit never-interactive prefix="parser_"
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nl \r?\n
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ws [ \f\t\r]
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cident [a-zA-Z_][0-9a-zA-Z_]*
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int [0-9]+
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hexd [0-9a-fA-F]
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hex 0x{hexd}+
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uuid {hexd}{8}-{hexd}{4}-{hexd}{4}-{hexd}{4}-{hexd}{12}
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double [0-9]+\.[0-9]+([eE][+-]?[0-9]+)*
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%x QUOTE
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%x ATTR
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%x PP_LINE
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%{
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <assert.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#else
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#define YY_NO_UNISTD_H
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#endif
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#include "widl.h"
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#include "utils.h"
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#include "parser.h"
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#include "wine/wpp.h"
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#include "parser.tab.h"
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extern char *temp_name;
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static void addcchar(char c);
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static char *get_buffered_cstring(void);
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static char *cbuffer;
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static int cbufidx;
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static int cbufalloc = 0;
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static int kw_token(const char *kw);
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static int attr_token(const char *kw);
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#define MAX_IMPORT_DEPTH 10
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struct {
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YY_BUFFER_STATE state;
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char *input_name;
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int line_number;
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char *temp_name;
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} import_stack[MAX_IMPORT_DEPTH];
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int import_stack_ptr = 0;
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static void pop_import(void);
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UUID *parse_uuid(const char *u)
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{
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UUID* uuid = xmalloc(sizeof(UUID));
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char b[3];
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/* it would be nice to use UuidFromStringA */
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uuid->Data1 = strtoul(u, NULL, 16);
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uuid->Data2 = strtoul(u+9, NULL, 16);
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uuid->Data3 = strtoul(u+14, NULL, 16);
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b[2] = 0;
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memcpy(b, u+19, 2); uuid->Data4[0] = strtoul(b, NULL, 16);
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memcpy(b, u+21, 2); uuid->Data4[1] = strtoul(b, NULL, 16);
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memcpy(b, u+24, 2); uuid->Data4[2] = strtoul(b, NULL, 16);
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memcpy(b, u+26, 2); uuid->Data4[3] = strtoul(b, NULL, 16);
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memcpy(b, u+28, 2); uuid->Data4[4] = strtoul(b, NULL, 16);
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memcpy(b, u+30, 2); uuid->Data4[5] = strtoul(b, NULL, 16);
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memcpy(b, u+32, 2); uuid->Data4[6] = strtoul(b, NULL, 16);
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memcpy(b, u+34, 2); uuid->Data4[7] = strtoul(b, NULL, 16);
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return uuid;
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}
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%}
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/*
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**************************************************************************
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* The flexer starts here
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**************************************************************************
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*/
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%%
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<INITIAL,ATTR>^{ws}*\#{ws}* yy_push_state(PP_LINE);
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<PP_LINE>[^\n]* {
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int lineno;
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char *cptr, *fname;
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yy_pop_state();
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lineno = (int)strtol(yytext, &cptr, 10);
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if(!lineno)
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error_loc("Malformed '#...' line-directive; invalid linenumber\n");
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fname = strchr(cptr, '"');
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if(!fname)
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error_loc("Malformed '#...' line-directive; missing filename\n");
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fname++;
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cptr = strchr(fname, '"');
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if(!cptr)
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error_loc("Malformed '#...' line-directive; missing terminating \"\n");
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*cptr = '\0';
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line_number = lineno - 1; /* We didn't read the newline */
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free( input_name );
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input_name = xstrdup(fname);
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}
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<INITIAL,ATTR>\" yy_push_state(QUOTE); cbufidx = 0;
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<QUOTE>\" {
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yy_pop_state();
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parser_lval.str = get_buffered_cstring();
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return aSTRING;
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}
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<QUOTE>\\\\ |
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<QUOTE>\\\" addcchar(yytext[1]);
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<QUOTE>\\. addcchar('\\'); addcchar(yytext[1]);
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<QUOTE>. addcchar(yytext[0]);
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<INITIAL,ATTR>\[ yy_push_state(ATTR); return '[';
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<ATTR>\] yy_pop_state(); return ']';
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<ATTR>{cident} return attr_token(yytext);
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<ATTR>{uuid} {
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parser_lval.uuid = parse_uuid(yytext);
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return aUUID;
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}
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<INITIAL,ATTR>{hex} {
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parser_lval.num = strtoul(yytext, NULL, 0);
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return aHEXNUM;
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}
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<INITIAL,ATTR>{int} {
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parser_lval.num = strtoul(yytext, NULL, 0);
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return aNUM;
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}
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<INITIAL>{double} {
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parser_lval.dbl = strtod(yytext, NULL);
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return aDOUBLE;
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}
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SAFEARRAY{ws}*/\( return tSAFEARRAY;
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{cident} return kw_token(yytext);
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<INITIAL,ATTR>\n line_number++;
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<INITIAL,ATTR>{ws}
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<INITIAL,ATTR>\<\< return SHL;
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<INITIAL,ATTR>\>\> return SHR;
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<INITIAL,ATTR>. return yytext[0];
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<<EOF>> {
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if (import_stack_ptr) {
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pop_import();
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return aEOF;
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}
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else yyterminate();
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}
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%%
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#ifndef parser_wrap
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int parser_wrap(void)
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{
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return 1;
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}
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#endif
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struct keyword {
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const char *kw;
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int token;
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};
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static const struct keyword keywords[] = {
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{"FALSE", tFALSE},
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{"TRUE", tTRUE},
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{"__cdecl", tCDECL},
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{"__int64", tINT64},
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{"__stdcall", tSTDCALL},
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{"_stdcall", tSTDCALL},
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{"boolean", tBOOLEAN},
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{"byte", tBYTE},
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{"callback", tCALLBACK},
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{"case", tCASE},
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{"char", tCHAR},
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{"coclass", tCOCLASS},
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{"code", tCODE},
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{"comm_status", tCOMMSTATUS},
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{"const", tCONST},
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{"cpp_quote", tCPPQUOTE},
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{"default", tDEFAULT},
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{"dispinterface", tDISPINTERFACE},
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{"double", tDOUBLE},
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{"enum", tENUM},
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{"error_status_t", tERRORSTATUST},
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{"extern", tEXTERN},
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{"float", tFLOAT},
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{"handle_t", tHANDLET},
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{"hyper", tHYPER},
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{"import", tIMPORT},
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{"importlib", tIMPORTLIB},
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{"in_line", tINLINE},
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{"int", tINT},
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{"interface", tINTERFACE},
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{"library", tLIBRARY},
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{"long", tLONG},
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{"methods", tMETHODS},
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{"module", tMODULE},
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{"properties", tPROPERTIES},
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{"short", tSHORT},
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{"signed", tSIGNED},
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{"sizeof", tSIZEOF},
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{"small", tSMALL},
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{"struct", tSTRUCT},
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{"switch", tSWITCH},
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{"typedef", tTYPEDEF},
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{"union", tUNION},
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{"unsigned", tUNSIGNED},
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{"void", tVOID},
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{"wchar_t", tWCHAR},
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};
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#define NKEYWORDS (sizeof(keywords)/sizeof(keywords[0]))
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/* keywords only recognized in attribute lists */
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static const struct keyword attr_keywords[] =
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{
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{"aggregatable", tAGGREGATABLE},
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{"allocate", tALLOCATE},
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{"appobject", tAPPOBJECT},
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{"async", tASYNC},
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{"async_uuid", tASYNCUUID},
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{"auto_handle", tAUTOHANDLE},
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{"bindable", tBINDABLE},
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{"broadcast", tBROADCAST},
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{"byte_count", tBYTECOUNT},
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{"call_as", tCALLAS},
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{"context_handle", tCONTEXTHANDLE},
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{"context_handle_noserialize", tCONTEXTHANDLENOSERIALIZE},
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{"context_handle_serialize", tCONTEXTHANDLENOSERIALIZE},
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{"control", tCONTROL},
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{"defaultcollelem", tDEFAULTCOLLELEM},
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{"defaultvalue", tDEFAULTVALUE},
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{"defaultvtable", tDEFAULTVTABLE},
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{"displaybind", tDISPLAYBIND},
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{"dllname", tDLLNAME},
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{"dual", tDUAL},
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{"endpoint", tENDPOINT},
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{"entry", tENTRY},
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{"explicit_handle", tEXPLICITHANDLE},
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{"handle", tHANDLE},
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{"helpcontext", tHELPCONTEXT},
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{"helpfile", tHELPFILE},
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{"helpstring", tHELPSTRING},
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{"helpstringcontext", tHELPSTRINGCONTEXT},
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{"helpstringdll", tHELPSTRINGDLL},
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{"hidden", tHIDDEN},
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{"id", tID},
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{"idempotent", tIDEMPOTENT},
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{"iid_is", tIIDIS},
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{"immediatebind", tIMMEDIATEBIND},
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{"implicit_handle", tIMPLICITHANDLE},
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{"in", tIN},
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{"input_sync", tINPUTSYNC},
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{"lcid", tLCID},
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{"length_is", tLENGTHIS},
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{"local", tLOCAL},
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{"nonbrowsable", tNONBROWSABLE},
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{"noncreatable", tNONCREATABLE},
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{"nonextensible", tNONEXTENSIBLE},
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{"object", tOBJECT},
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{"odl", tODL},
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{"oleautomation", tOLEAUTOMATION},
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{"optional", tOPTIONAL},
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{"out", tOUT},
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{"pointer_default", tPOINTERDEFAULT},
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{"propget", tPROPGET},
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{"propput", tPROPPUT},
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{"propputref", tPROPPUTREF},
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{"ptr", tPTR},
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{"public", tPUBLIC},
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{"range", tRANGE},
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{"readonly", tREADONLY},
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{"ref", tREF},
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{"requestedit", tREQUESTEDIT},
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{"restricted", tRESTRICTED},
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{"retval", tRETVAL},
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{"single", tSINGLE},
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{"size_is", tSIZEIS},
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{"source", tSOURCE},
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{"strict_context_handle", tSTRICTCONTEXTHANDLE},
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{"string", tSTRING},
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{"switch_is", tSWITCHIS},
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{"switch_type", tSWITCHTYPE},
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{"transmit_as", tTRANSMITAS},
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{"unique", tUNIQUE},
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{"uuid", tUUID},
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{"v1_enum", tV1ENUM},
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{"vararg", tVARARG},
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{"version", tVERSION},
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{"wire_marshal", tWIREMARSHAL},
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};
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#define KWP(p) ((const struct keyword *)(p))
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static int kw_cmp_func(const void *s1, const void *s2)
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{
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return strcmp(KWP(s1)->kw, KWP(s2)->kw);
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}
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static int kw_token(const char *kw)
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{
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struct keyword key, *kwp;
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key.kw = kw;
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kwp = bsearch(&key, keywords, NKEYWORDS, sizeof(keywords[0]), kw_cmp_func);
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if (kwp) {
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parser_lval.str = xstrdup(kwp->kw);
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return kwp->token;
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}
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parser_lval.str = xstrdup(kw);
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return is_type(kw) ? aKNOWNTYPE : aIDENTIFIER;
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}
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static int attr_token(const char *kw)
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{
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struct keyword key, *kwp;
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key.kw = kw;
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kwp = bsearch(&key, attr_keywords, sizeof(attr_keywords)/sizeof(attr_keywords[0]),
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sizeof(attr_keywords[0]), kw_cmp_func);
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if (kwp) {
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parser_lval.str = xstrdup(kwp->kw);
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return kwp->token;
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}
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return kw_token(kw);
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}
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static void addcchar(char c)
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{
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if(cbufidx >= cbufalloc)
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{
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cbufalloc += 1024;
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cbuffer = xrealloc(cbuffer, cbufalloc * sizeof(cbuffer[0]));
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if(cbufalloc > 65536)
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parser_warning("Reallocating string buffer larger than 64kB\n");
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}
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cbuffer[cbufidx++] = c;
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}
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static char *get_buffered_cstring(void)
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{
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addcchar(0);
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return xstrdup(cbuffer);
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}
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static void pop_import(void)
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{
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int ptr = import_stack_ptr-1;
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fclose(yyin);
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yy_delete_buffer( YY_CURRENT_BUFFER );
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yy_switch_to_buffer( import_stack[ptr].state );
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if (temp_name) {
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unlink(temp_name);
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free(temp_name);
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}
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temp_name = import_stack[ptr].temp_name;
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free( input_name );
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input_name = import_stack[ptr].input_name;
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line_number = import_stack[ptr].line_number;
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import_stack_ptr--;
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}
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struct imports {
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char *name;
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struct imports *next;
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} *first_import;
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int do_import(char *fname)
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{
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FILE *f;
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char *hname, *path, *p;
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struct imports *import;
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int ptr = import_stack_ptr;
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int ret;
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if (!parse_only && do_header) {
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hname = dup_basename(fname, ".idl");
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p = hname + strlen(hname) - 2;
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if (p <= hname || strcmp( p, ".h" )) strcat(hname, ".h");
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fprintf(header, "#include <%s>\n", hname);
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free(hname);
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}
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import = first_import;
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while (import && strcmp(import->name, fname))
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import = import->next;
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if (import) return 0; /* already imported */
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import = xmalloc(sizeof(struct imports));
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import->name = xstrdup(fname);
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import->next = first_import;
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first_import = import;
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/* don't search for a file name with a path in the include directories,
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* for compatibility with MIDL */
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if (strchr( fname, '/' ) || strchr( fname, '\\' ))
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path = strdup( fname );
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else if (!(path = wpp_find_include( fname, input_name )))
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error_loc("Unable to open include file %s\n", fname);
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import_stack[ptr].temp_name = temp_name;
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import_stack[ptr].input_name = input_name;
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import_stack[ptr].line_number = line_number;
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import_stack_ptr++;
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input_name = path;
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line_number = 1;
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ret = wpp_parse_temp( path, NULL, &temp_name );
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if (ret) exit(1);
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if((f = fopen(temp_name, "r")) == NULL)
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error_loc("Unable to open %s\n", temp_name);
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import_stack[ptr].state = YY_CURRENT_BUFFER;
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yy_switch_to_buffer(yy_create_buffer(f, YY_BUF_SIZE));
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return 1;
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}
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void abort_import(void)
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{
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int ptr;
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for (ptr=0; ptr<import_stack_ptr; ptr++)
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unlink(import_stack[ptr].temp_name);
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}
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