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|
%{
// Copyright Eran Ifrah(c)
%}
%{
/*************** Includes and Defines *****************************/
#include <wx/string.h>
#include "pptable.h"
#define YYSTYPE wxString
#define YYDEBUG 0 /* get the pretty debugging code to compile*/
#ifdef yylex
#undef yylex
#define yylex pp_lex
#endif
extern void pp_error(char *st);
extern int pp_lex();
extern wxString g_definition;
extern int in_if_1;
extern bool g_forCC;
extern wxString g_filename;
// Static
static std::vector<wxString> g_tmpMacros;
/*************** Standard ytab.c continues here *********************/
%}
/* This group is used by the C/C++ language parser */
%token PP_DEFINE PP_IF PP_IFDEF PP_DEFINED
%token PP_UNDEF PP_ELSE PP_ELIF PP_ENDIF
%token PP_POUND PP_IDENTIFIER PP_COMPLEX_REPLACEMENT PP_IFNDEF
%token PP_ZERO PP_CPLUSPLUS PP_INCLUDE PP_DEFINED
%token PP_AND PP_OR PP_EQUAL PP_NEQUAL
%token PP_INT PP_LOWERTHAN PP_GREATERTHAN
%start translation_unit
%%
translation_unit : /*empty*/
| translation_unit the_macros_rule
;
/** proxy rule so we can perform our cleanup **/
the_macros_rule: {g_tmpMacros.clear();} macros
;
/**
* We currently support 3 types of macros:
* 1) Simple define macros (e.g. #define VALUE 1)
* 2) Function like macros (e.g. #define FOO(x) printf("%s\n", x);)
* 3) Conditional macros:
* 3.1) #if (condition)
* 3.2) #ifdef (NAME)
* 3.3) #if defined(COND) && defiend(COND2)
*/
macros: define_simple_macros
| define_func_like_macros
| if_cplusplus
| ifdef_simple_macro
| if_macros
| elif_macros
| end_if
| error {
//wxPrintf(wxT("CodeLite: syntax error, unexpected token '%s' found\n"), pp_lval.c_str());
}
;
end_if : PP_ENDIF
;
if_cplusplus : PP_IF PP_CPLUSPLUS
{
if(in_if_1 == 0)
in_if_1 = 1;
}
;
define_simple_macros: PP_DEFINE PP_IDENTIFIER PP_COMPLEX_REPLACEMENT
{
PPToken token;
token.fileName = g_filename;
token.name = $2;
token.flags = (PPToken::IsValid | PPToken::IsOverridable);
if(in_if_1) {
// the token was found in a '#if 1' block - dont allow overriding it
token.flags &= ~(PPToken::IsOverridable);
}
token.replacement = g_definition;
if(g_forCC) {
if(!token.replacement.empty()) {
wxChar ch = token.replacement.at(0);
if( !(ch >= (int)wxT('0') && ch <= (int)wxT('9')) )
PPTable::Instance()->Add( token );
}
} else {
PPTable::Instance()->Add( token );
}
}
;
define_func_like_macros: PP_DEFINE PP_IDENTIFIER '(' args_list ')' PP_COMPLEX_REPLACEMENT
{
PPToken token;
token.fileName = g_filename;
token.name = $2;
token.replacement = g_definition;
token.flags = (PPToken::IsFunctionLike | PPToken::IsValid | PPToken::IsOverridable);
if(in_if_1) {
// the token was found in a '#if 1' block - dont allow overriding it
token.flags &= ~(PPToken::IsOverridable);
}
token.processArgs( $4 );
PPTable::Instance()->Add( token );
}
;
args_list: /* empty */
| PP_IDENTIFIER { $$ = $1; }
| args_list ',' PP_IDENTIFIER { $$ = $1 + $2 + $3; }
;
ifdef_simple_macro: PP_IFDEF PP_IDENTIFIER
{
PPTable::Instance()->AddUsed($2);
}
;
if_macros: PP_IF if_condition
;
elif_macros: PP_ELIF if_condition
;
if_condition: generic_condition
{
for(size_t i=0; i<g_tmpMacros.size(); i++) {
//wxPrintf(wxT("Collected: %s\n"), g_tmpMacros[i].c_str());
PPTable::Instance()->AddUsed(g_tmpMacros[i]);
}
}
;
generic_condition: generic_condition_base
| generic_condition logical_operator generic_condition_base
;
generic_condition_base: /*empty*/
| '(' PP_IDENTIFIER ')' {g_tmpMacros.push_back($2);}
| PP_IDENTIFIER {g_tmpMacros.push_back($1);}
| PP_IDENTIFIER test_operator PP_INT {g_tmpMacros.push_back($1);}
| '(' PP_IDENTIFIER test_operator PP_INT ')' {g_tmpMacros.push_back($2);}
| PP_DEFINED '(' PP_IDENTIFIER ')' {g_tmpMacros.push_back($3);}
;
logical_operator: PP_AND
| PP_OR
;
test_operator: PP_EQUAL
| PP_NEQUAL
| PP_LOWERTHAN
| PP_GREATERTHAN
;
%%
|
