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|
%{
// Copyright Eran Ifrah(c)
%}
%{
/*************** Includes and Defines *****************************/
#include "string"
#include "vector"
#include "stdio.h"
#include "map"
#include "variable.h"
#include "cl_typedef.h"
#ifdef yylex
#undef yylex
#define yylex cl_scope_lex
#endif
#define YYSTYPE std::string
#define YYDEBUG 0 /* get the pretty debugging code to compile*/
void cl_scope_error(char *string);
int cl_var_parse();
void syncParser();
void var_consumeDefaultValue(char c1, char c2);
void var_consumeDefaultValueIfNeeded();
static VariableList * gs_vars = NULL;
static std::vector<Variable> gs_names;
static bool g_isUsedWithinFunc = false;
static std::string s_tmpString;
static Variable curr_var;
static std::string s_templateInitList;
static bool isBasicType = false;
//---------------------------------------------
// externs defined in the lexer
//---------------------------------------------
extern char *cl_scope_text;
extern int cl_scope_lex();
extern void cl_scope_less(int count);
extern int cl_scope_lineno;
extern std::vector<std::string> currentScope;
extern bool setLexerInput(const std::string &in, const std::map<std::string, std::string> &ignoreMap);
extern void setUseIgnoreMacros(bool ignore);
extern void cl_scope_lex_clean();
/*************** Standard ytab.c continues here *********************/
%}
/*************************************************************************/
/* This group is used by the C/C++ language parser */
%token LE_AUTO LE_DOUBLE LE_INT LE_STRUCT
%token LE_BREAK LE_ELSE LE_LONG LE_SWITCH
%token LE_CASE LE_ENUM LE_REGISTER LE_TYPEDEF
%token LE_CHAR LE_EXTERN LE_RETURN LE_UNION
%token LE_CONST LE_FLOAT LE_SHORT LE_UNSIGNED LE_BOOL
%token LE_CONTINUE LE_FOR LE_SIGNED LE_VOID
%token LE_DEFAULT LE_GOTO LE_SIZEOF LE_VOLATILE
%token LE_DO LE_IF LE_STATIC LE_WHILE
/* The following are used in C++ only. ANSI C would call these IDENTIFIERs */
%token LE_NEW LE_DELETE
%token LE_THIS
%token LE_OPERATOR
%token LE_CLASS
%token LE_PUBLIC LE_PROTECTED LE_PRIVATE
%token LE_VIRTUAL LE_FRIEND
%token LE_INLINE LE_OVERLOAD
%token LE_TEMPLATE LE_TYPENAME
%token LE_THROW LE_CATCH
/* ANSI C Grammar suggestions */
%token LE_IDENTIFIER LE_STRINGliteral
%token LE_FLOATINGconstant LE_INTEGERconstant LE_CHARACTERconstant
%token LE_OCTALconstant LE_HEXconstant
%token LE_POUNDPOUND LE_CComment LE_CPPComment LE_NAMESPACE LE_USING
/* New Lexical element, whereas ANSI C suggested non-terminal */
%token LE_TYPEDEFname
/* Multi-Character operators */
%token LE_ARROW /* -> */
%token LE_ICR LE_DECR /* ++ -- */
%token LE_LS LE_RS /* << >> */
%token LE_LE LE_GE LE_EQ LE_NE /* <= >= == != */
%token LE_ANDAND LE_OROR /* && || */
%token LE_ELLIPSIS /* ... */
/* Following are used in C++, not ANSI C */
%token LE_CLCL /* :: */
%token LE_DOTstar LE_ARROWstar /* .* ->* */
/* modifying assignment operators */
%token LE_MULTassign LE_DIVassign LE_MODassign /* *= /= %= */
%token LE_PLUSassign LE_MINUSassign /* += -= */
%token LE_LSassign LE_RSassign /* <<= >>= */
%token LE_ANDassign LE_ERassign LE_ORassign /* &= ^= |= */
%token LE_MACRO
%token LE_DYNAMIC_CAST
%token LE_STATIC_CAST
%token LE_CONST_CAST
%token LE_REINTERPRET_CAST
%token LE_SIZE_T
%token LE_TIME_T
%start translation_unit
%%
/* Costants */
basic_type_name_inter: LE_INT { $$ = $1; }
| LE_CHAR { $$ = $1; }
| LE_SHORT { $$ = $1; }
| LE_LONG { $$ = $1; }
| LE_FLOAT { $$ = $1; }
| LE_DOUBLE { $$ = $1; }
| LE_SIGNED { $$ = $1; }
| LE_UNSIGNED { $$ = $1; }
| LE_VOID { $$ = $1; }
| LE_BOOL { $$ = $1; }
| LE_TIME_T { $$ = $1; }
| LE_SIZE_T { $$ = $1; }
| LE_LONG LE_LONG { $$ = "long long";}
| LE_LONG LE_INT { $$ = "long int";}
;
basic_type_name: LE_UNSIGNED basic_type_name_inter { $$ = $1 + " " + $2; }
| LE_SIGNED basic_type_name_inter { $$ = $1 + " " + $2; }
| basic_type_name_inter { $$ = $1; }
| LE_SHORT basic_type_name { $$ = $1 + " " + $2;}
;
/* ========================================================================*/
/* find declarations */
/* ========================================================================*/
translation_unit : /*empty*/
| translation_unit external_decl
;
external_decl : {curr_var.Reset(); gs_names.clear(); s_tmpString.clear(); s_templateInitList.clear();} variables
| '$' basic_type_name ';' /* dummy '@' to avoid conflicts .. */
{
isBasicType = true;
}
| error {
yyclearin; //clear lookahead token
yyerrok;
// printf("CodeLite: syntax error, unexpected token '%s' found at line %d \n", cl_var_lval.c_str(), cl_scope_lineno);
}
;
/* the following rules are for template parameters no declarations! */
parameter_list : /* empty */ {$$ = "";}
| template_parameter {$$ = $1;}
| parameter_list ',' template_parameter {$$ = $1 + $2 + " " + $3;}
;
template_parameter : const_or_volatile_spec nested_scope_specifier LE_IDENTIFIER special_star_amp
{
$$ = $1 + $2 + $3 +$4;
}
| const_or_volatile_spec nested_scope_specifier basic_type_name special_star_amp
{
$$ = $1 + $2 + $3 +$4;
}
| const_or_volatile_spec nested_scope_specifier LE_IDENTIFIER '<' parameter_list '>' special_star_amp
{
$$ = $1 + $2 + $3 +$4 + $5 + $6 + $7 + " " ;
}
;
//the main rule for finding variables
//in the code. if this rule succeeded, the variables
//is added to the gs_vars vriable
variables : stmnt_starter LE_AUTO LE_IDENTIFIER '=' {var_consumeAutoAssignment($3);}
{}
LE_TYPEDEF LE_STRUCT optional_struct_name '{' {var_consumBracketsContent('{');} typedef_name_list ';'
{
}
| stmnt_starter variable_decl special_star_amp const_or_volatile_spec variable_name_list '{'{var_consumBracketsContent('{');} ';'
{
if(gs_vars)
{
Variable var;
std::string pattern;
curr_var.m_isPtr = ($3.find("*") != (size_t)-1);
curr_var.m_starAmp = $3;
curr_var.m_lineno = cl_scope_lineno;
curr_var.m_rightSideConst = $4;
if(curr_var.m_templateDecl.empty())
curr_var.m_templateDecl = s_templateInitList;
s_templateInitList.clear();
for(size_t i=0; i< gs_names.size(); i++)
{
//create new variable for every variable name found
var = curr_var;
var.m_pattern = $2 + " " + $3 + " " + $4 ;
if(var.m_completeType.empty()) {
var.m_completeType = $2 + " " + $3 + " " + $4 ;
}
var.m_name = gs_names.at(i).m_name;
var.m_defaultValue = gs_names.at(i).m_defaultValue;
if(i != 0) {
var.m_isPtr = gs_names.at(i).m_isPtr;
var.m_starAmp = gs_names.at(i).m_starAmp;
}
gs_vars->push_back(var);
}
curr_var.Reset();
gs_names.clear();
}
}
| stmnt_starter variable_decl special_star_amp const_or_volatile_spec variable_name_list postfix
{
if(gs_vars)
{
Variable var;
std::string pattern;
curr_var.m_isPtr = ($3.find("*") != (size_t)-1);
curr_var.m_starAmp = $3;
curr_var.m_lineno = cl_scope_lineno;
curr_var.m_rightSideConst = $4;
if(curr_var.m_templateDecl.empty())
curr_var.m_templateDecl = s_templateInitList;
s_templateInitList.clear();
for(size_t i=0; i< gs_names.size(); i++)
{
//create new variable for every variable name found
var = curr_var;
var.m_pattern = $2 + " " + $3 + " " + $4 ;
if(var.m_completeType.empty()) {
var.m_completeType = $2 + " " + $3 + " " + $4 ;
}
var.m_name = gs_names.at(i).m_name;
var.m_defaultValue = gs_names.at(i).m_defaultValue;
if(i != 0) {
var.m_isPtr = gs_names.at(i).m_isPtr;
var.m_starAmp = gs_names.at(i).m_starAmp;
}
gs_vars->push_back(var);
}
curr_var.Reset();
gs_names.clear();
}
}
//
// Functions arguments:
//
| '(' variable_decl special_star_amp const_or_volatile_spec LE_IDENTIFIER postfix2
{
if(gs_vars)
{
Variable var;
std::string pattern;
curr_var.m_pattern = $2 + " " + $3 + " " + $4 + " " + $5;
curr_var.m_completeType = $2 + " " + $3 + " " + $4 ;
curr_var.m_isPtr = ($3.find("*") != (size_t)-1);
curr_var.m_starAmp = $3;
curr_var.m_arrayBrackets = $6;
curr_var.m_rightSideConst= $4;
curr_var.m_lineno = cl_scope_lineno;
if(curr_var.m_templateDecl.empty())
curr_var.m_templateDecl = s_templateInitList;
s_templateInitList.clear();
//create new variable for every variable name found
var = curr_var;
var.m_name = $5;
gs_vars->push_back(var);
curr_var.Reset();
gs_names.clear();
}
}
| ',' variable_decl special_star_amp const_or_volatile_spec LE_IDENTIFIER postfix2
{
if(gs_vars && g_isUsedWithinFunc)
{
Variable var;
std::string pattern;
curr_var.m_pattern = $2 + " " + $3 + " " + $4 + " " + $5;
curr_var.m_completeType = $2 + " " + $3 + " " + $4 ;
curr_var.m_isPtr = ($3.find("*") != (size_t)-1);
curr_var.m_starAmp = $3;
curr_var.m_arrayBrackets = $6;
curr_var.m_rightSideConst = $4;
curr_var.m_lineno = cl_scope_lineno;
if(curr_var.m_templateDecl.empty())
curr_var.m_templateDecl = s_templateInitList;
s_templateInitList.clear();
//create new variable for every variable name found
var = curr_var;
var.m_name = $5;
gs_vars->push_back(var);
curr_var.Reset();
gs_names.clear();
}
}
// Function arguments without identifier
| '(' variable_decl special_star_amp const_or_volatile_spec postfix3
{
if(gs_vars && g_isUsedWithinFunc)
{
Variable var;
std::string pattern;
curr_var.m_pattern = $2 + " " + $3 + " " + $4;
curr_var.m_completeType = $2 + " " + $3 + " " + $4;
curr_var.m_isPtr = ($3.find("*") != (size_t)-1);
curr_var.m_starAmp = $3;
curr_var.m_rightSideConst= $4;
curr_var.m_lineno = cl_scope_lineno;
if(curr_var.m_templateDecl.empty())
curr_var.m_templateDecl = s_templateInitList;
s_templateInitList.clear();
//create new variable for every variable name found
var = curr_var;
var.m_name = "";
gs_vars->push_back(var);
curr_var.Reset();
gs_names.clear();
}
if($5 == ",") {
cl_scope_less(0);
}
}
| ',' variable_decl special_star_amp const_or_volatile_spec postfix3
{
if(gs_vars && g_isUsedWithinFunc)
{
Variable var;
std::string pattern;
curr_var.m_pattern = $2 + " " + $3 + " " + $4;
curr_var.m_completeType = $2 + " " + $3 + " " + $4;
curr_var.m_isPtr = ($3.find("*") != (size_t)-1);
curr_var.m_starAmp = $3;
curr_var.m_lineno = cl_scope_lineno;
curr_var.m_rightSideConst= $4;
if(curr_var.m_templateDecl.empty())
curr_var.m_templateDecl = s_templateInitList;
s_templateInitList.clear();
//create new variable for every variable name found
var = curr_var;
var.m_name = "";
gs_vars->push_back(var);
curr_var.Reset();
gs_names.clear();
}
if($5 == ",") {
cl_scope_less(0);
}
}
| ellipsis_prefix LE_ELLIPSIS ')'
{
/* special type of argument: Ellipsis, can only be at the end of function argument */
if(gs_vars && g_isUsedWithinFunc)
{
Variable var;
std::string pattern;
curr_var.m_pattern = $1 + " " + $2 + " " + $3;
curr_var.m_completeType = $2;
curr_var.m_isPtr = false;
curr_var.m_starAmp = "";
curr_var.m_lineno = cl_scope_lineno;
curr_var.m_isEllipsis = true;
var = curr_var;
gs_vars->push_back(var);
curr_var.Reset();
gs_names.clear();
}
}
;
optional_struct_name : /* empty */
| LE_IDENTIFIER
| '*' LE_IDENTIFIER
| '**' LE_IDENTIFIER
;
fully_qualified_identifier_name: LE_IDENTIFIER {$$ = $1;}
| scope_specifier LE_IDENTIFIER {$$ = $2;}
;
typedef_name_list: optional_struct_name
| typedef_name_list ',' optional_struct_name
;
ellipsis_prefix: '(' {$$ = $1;}
|',' {$$ = $1;}
;
variable_name_list: fully_qualified_identifier_name {var_consumeDefaultValueIfNeeded();}
{
curr_var.m_name = $1;
gs_names.push_back(curr_var);
}
| variable_name_list ',' special_star_amp fully_qualified_identifier_name {var_consumeDefaultValueIfNeeded();}
{
//collect all the names
curr_var.m_name = $4;
curr_var.m_isPtr = ($3.find("*") != (size_t)-1);
curr_var.m_starAmp = $3;
gs_names.push_back(curr_var);
$$ = $1 + $2 + " " + $3 + $4;
}
;
postfix3: ','
| ')'
;
postfix2: /*empty*/ {$$ = "";}
| '=' {var_consumeDefaultValue(',', ')'); $$ = ""; }
| ')' { $$ = ""; }
| '[' { $$ = $1 + var_consumBracketsContent('[');}
;
postfix: ';'
| '='
| ')'
| '(' { $$ = $1 + var_consumBracketsContent('(');}
| '[' { $$ = $1 + var_consumBracketsContent('[');}
;
/*
applicable for C++, for cases where a function is declared as
void scope::foo(){ ... }
*/
scope_specifier : LE_IDENTIFIER LE_CLCL
{
$$ = $1+ $2;
}
| LE_IDENTIFIER '<' parameter_list '>' LE_CLCL
{
$$ = $1 + $2 + $3 + $4 + $5;
s_templateInitList = $2 + $3 + $4;
}
;
nested_scope_specifier: /*empty*/ {$$ = "";}
| nested_scope_specifier scope_specifier { $$ = $1 + $2;}
;
volatile_qualifier: /* empty */ { $$ = ""; }
| LE_VOLATILE { $$ = $1; curr_var.m_isVolatile = true; }
;
const_or_volatile_spec: /* empty */ { $$ = ""; }
| LE_CONST volatile_qualifier { $$ = $1; }
| LE_CONST '*' { $$ = $1 + $2; curr_var.m_rightSideConst = $$; }
| LE_CONST '&' { $$ = $1 + $2; curr_var.m_rightSideConst = $$; }
| LE_CONST '*' '*' { $$ = $1 + $2 + $3; curr_var.m_rightSideConst = $$;}
| LE_VOLATILE { $$ = $1; curr_var.m_isVolatile = true; }
| LE_ENUM const_or_volatile_spec { curr_var.m_enumInTypeDecl = true; }
;
amp_item : /*empty*/ {$$ = ""; }
| '&' { $$ = $1; }
;
at_list : /* empty */ {$$ = "";}
| '@' {$$ = "*";}
;
star_list : /*empty*/ {$$ = ""; }
| star_list '*' {$$ = $1 + $2;}
;
special_star_amp:star_list amp_item at_list { $$ = $1 + $2 + $3; }
;
stmnt_starter : /*empty*/ {$$ = "";}
| ';' { $$ = ";";}
| '{' { $$ = "{";}
| '}' { $$ = "}";}
| ':' { $$ = ":";} //e.g. private: std::string m_name;
;
/** Variables **/
variable_decl : const_or_volatile_spec basic_type_name
{
$$ = $1 + " " + $2;
$2.erase($2.find_last_not_of(":")+1);
curr_var.m_type = $2;
curr_var.m_isBasicType = true;
curr_var.m_isConst = ($1.find("const") != std::string::npos);
}
| const_or_volatile_spec nested_scope_specifier LE_IDENTIFIER
{
$$ = $1 + " " + $2 + $3;
$2.erase($2.find_last_not_of(":")+1);
curr_var.m_typeScope = $2;
curr_var.m_type = $3;
curr_var.m_isConst = ($1.find("const") != std::string::npos);
s_tmpString.clear();
}
| const_or_volatile_spec nested_scope_specifier LE_IDENTIFIER '<' parameter_list '>'
{
$$ = $1 + " " + $2 + $3 + " " + $4 + $5 + $6;
$2.erase($2.find_last_not_of(":")+1);
curr_var.m_typeScope = $2;
curr_var.m_type = $3;
curr_var.m_isTemplate = true;
curr_var.m_templateDecl = $4 +$5 +$6;
curr_var.m_isConst = ($1.find("const") != std::string::npos);
s_tmpString.clear();
}
| const_or_volatile_spec LE_STRUCT nested_scope_specifier LE_IDENTIFIER '{' {s_tmpString = var_consumBracketsContent('{');}
{
$$ = $1 + " " + $2 + " " + $3 + " " + $4 + $5 + $6 + s_tmpString;
$3.erase($3.find_last_not_of(":")+1);
curr_var.m_typeScope = $3;
curr_var.m_type = $4;
curr_var.m_completeType = $3 + $4;
curr_var.m_isConst = ($1.find("const") != std::string::npos);
s_tmpString.clear();
}
| const_or_volatile_spec LE_STRUCT nested_scope_specifier LE_IDENTIFIER
{
$$ = $1 + " " + $2 + " " + $3 + " " + $4;
$3.erase($3.find_last_not_of(":")+1);
curr_var.m_typeScope = $3;
curr_var.m_type = $4;
curr_var.m_isTemplate = !curr_var.m_templateDecl.empty();
curr_var.m_completeType = $3 + $4;
curr_var.m_isConst = ($1.find("const") != std::string::npos);
s_tmpString.clear();
}
;
%%
void yyerror(char *s) {}
void var_consumeAutoAssignment(const std::string& varname)
{
// Collect everything until we encounter the first ';'
std::string expression;
while ( true ) {
int ch = cl_scope_lex();
if(ch == 0){
break;
}
if ( ch == ';' ) {
// add an auto variable
Variable var;
var.m_name = varname;
var.m_isAuto = true;
var.m_completeType.swap(expression);
curr_var.m_lineno = cl_scope_lineno;
s_templateInitList.clear();
gs_vars->push_back(var);
curr_var.Reset();
gs_names.clear();
break;
} else {
expression.append( cl_scope_text ).append(" ");
}
}
}
std::string var_consumBracketsContent(char openBrace)
{
char closeBrace;
switch(openBrace) {
case '(': closeBrace = ')'; break;
case '[': closeBrace = ']'; break;
case '<': closeBrace = '>'; break;
case '{': closeBrace = '}'; break;
default:
openBrace = '(';
closeBrace = ')';
break;
}
std::string consumedData;
int depth = 1;
while(depth > 0)
{
int ch = cl_scope_lex();
if(ch == 0){
break;
}
if(ch == closeBrace)
{
consumedData.erase(0, consumedData.find_first_not_of(" "));
consumedData.erase(consumedData.find_last_not_of(" ")+1);
consumedData += cl_scope_text;
depth--;
continue;
}
else if(ch == openBrace)
{
consumedData.erase(0, consumedData.find_first_not_of(" "));
consumedData.erase(consumedData.find_last_not_of(" ")+1);
consumedData += cl_scope_text;
depth ++ ;
continue;
}
consumedData += cl_scope_text;
consumedData += " ";
}
return consumedData;
}
void var_consumeDefaultValueIfNeeded()
{
int ch = cl_scope_lex();
if(ch != '=') {
cl_scope_less(0);
return;
}
var_consumeDefaultValue(';', ',');
}
void var_consumeDefaultValue(char c1, char c2)
{
int depth = 0;
bool cont(true);
curr_var.m_defaultValue.clear();
while (depth >= 0) {
int ch = cl_scope_lex();
if(ch == 0) { break;}
if(ch == c1 && depth == 0) {
cl_scope_less(0);
break;
}
if(ch == c2 && depth == 0) {
cl_scope_less(0);
break;
}
curr_var.m_defaultValue += cl_scope_text;
if(ch == ')' || ch == '}'){
depth--;
continue;
} else if(ch == '(' || ch == '{') {
depth ++ ;
continue;
}
}
}
void clean_up()
{
gs_vars = NULL;
// restore settings
setUseIgnoreMacros(true);
g_isUsedWithinFunc = false;
isBasicType = false;
//do the lexer cleanup
cl_scope_lex_clean();
}
// return the scope name at the end of the input string
void get_variables(const std::string &in, VariableList &li, const std::map<std::string, std::string> &ignoreMap, bool isUsedWithinFunc)
{
//provide the lexer with new input
if( !setLexerInput(in, ignoreMap) ){
return;
}
//set the parser local output to our variable list
gs_vars = &li;
setUseIgnoreMacros(false);
// the 'g_isUsedWithinFunc' allows us to parse variabels without name
// this is typical when used as function declaration (e.g. void setValue(bool);)
g_isUsedWithinFunc = isUsedWithinFunc;
//call tghe main parsing routine
cl_var_parse();
clean_up();
}
bool is_primitive_type(const std::string &in)
{
std::string input = "@"; // Hack the input string...
input += in;
input += ";";
const std::map<std::string, std::string> ignoreMap;
if(!setLexerInput(input, ignoreMap)) {
return false;
}
isBasicType = false;
cl_var_parse();
bool res = isBasicType;
clean_up();
return res;
}
|
