mirror of https://github.com/Icinga/icinga2.git
428 lines
8.1 KiB
Plaintext
428 lines
8.1 KiB
Plaintext
%code requires {
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/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program 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 *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "i2-config.h"
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using namespace icinga;
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#define YYLTYPE DebugInfo
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}
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%pure-parser
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%locations
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%defines
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%error-verbose
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%parse-param { ConfigCompiler *context }
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%lex-param { void *scanner }
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%union {
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char *text;
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double num;
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icinga::Value *variant;
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icinga::ExpressionOperator op;
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icinga::TypeSpecifier type;
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}
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%token <text> T_STRING
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%token <text> T_STRING_ANGLE
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%token <num> T_NUMBER
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%token T_NULL
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%token <text> T_IDENTIFIER
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%token <op> T_EQUAL
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%token <op> T_PLUS_EQUAL
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%token <op> T_MINUS_EQUAL
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%token <op> T_MULTIPLY_EQUAL
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%token <op> T_DIVIDE_EQUAL
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%token <type> T_TYPE_DICTIONARY
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%token <type> T_TYPE_NUMBER
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%token <type> T_TYPE_STRING
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%token <type> T_TYPE_SCALAR
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%token <type> T_TYPE_ANY
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%token T_VALIDATOR
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%token T_REQUIRE
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%token T_ATTRIBUTE
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%token T_TYPE
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%token T_ABSTRACT
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%token T_LOCAL
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%token T_OBJECT
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%token T_INCLUDE
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%token T_LIBRARY
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%token T_INHERITS
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%token T_PARTIAL
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%type <text> identifier
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%type <variant> simplevalue
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%type <variant> value
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%type <variant> expressionlist
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%type <variant> array
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%type <variant> typerulelist
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%type <op> operator
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%type <type> type
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%type <num> partial_specifier
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%left '+' '-'
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%left '*' '/'
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%{
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int yylex(YYSTYPE *lvalp, YYLTYPE *llocp, void *scanner);
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void yyerror(YYLTYPE *locp, ConfigCompiler *, const char *err)
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{
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stringstream message;
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message << *locp << ": " << err;
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ConfigCompilerContext::GetContext()->AddError(false, message.str());
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}
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int yyparse(ConfigCompiler *context);
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static stack<ExpressionList::Ptr> m_ExpressionLists;
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static Dictionary::Ptr m_Array;
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static ConfigItemBuilder::Ptr m_Item;
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static bool m_Abstract;
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static bool m_Local;
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static stack<TypeRuleList::Ptr> m_RuleLists;
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static ConfigType::Ptr m_Type;
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void ConfigCompiler::Compile(void)
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{
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assert(ConfigCompilerContext::GetContext() != NULL);
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try {
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yyparse(this);
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} catch (const exception& ex) {
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ConfigCompilerContext::GetContext()->AddError(false, boost::diagnostic_information(ex));
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}
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}
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#define scanner (context->GetScanner())
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%}
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%%
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statements: /* empty */
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| statements statement
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;
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statement: object | type | include | library
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;
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include: T_INCLUDE T_STRING
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{
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context->HandleInclude($2, false, yylloc);
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free($2);
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}
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| T_INCLUDE T_STRING_ANGLE
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{
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context->HandleInclude($2, true, yylloc);
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free($2);
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}
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library: T_LIBRARY T_STRING
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{
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context->HandleLibrary($2);
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free($2);
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}
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identifier: T_IDENTIFIER
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| T_STRING
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{
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$$ = $1;
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free($1);
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}
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;
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type: partial_specifier T_TYPE identifier
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{
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String name = String($3);
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free($3);
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m_Type = ConfigCompilerContext::GetContext()->GetType(name);
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if (!m_Type) {
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if ($1)
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BOOST_THROW_EXCEPTION(invalid_argument("Partial type definition for unknown type '" + name + "'"));
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m_Type = boost::make_shared<ConfigType>(name, yylloc);
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ConfigCompilerContext::GetContext()->AddType(m_Type);
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}
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}
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type_inherits_specifier typerulelist
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{
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TypeRuleList::Ptr ruleList = *$6;
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m_Type->GetRuleList()->AddRules(ruleList);
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m_Type->GetRuleList()->AddRequires(ruleList);
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String validator = ruleList->GetValidator();
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if (!validator.IsEmpty())
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m_Type->GetRuleList()->SetValidator(validator);
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delete $6;
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}
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;
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partial_specifier: /* Empty */
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{
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$$ = 0;
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}
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| T_PARTIAL
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{
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$$ = 1;
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}
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;
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typerulelist: '{'
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{
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m_RuleLists.push(boost::make_shared<TypeRuleList>());
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}
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typerules
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'}'
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{
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$$ = new Value(m_RuleLists.top());
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m_RuleLists.pop();
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}
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;
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typerules: typerules_inner
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| typerules_inner ','
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typerules_inner: /* empty */
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| typerule
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| typerules_inner ',' typerule
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;
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typerule: T_REQUIRE T_STRING
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{
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m_RuleLists.top()->AddRequire($2);
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free($2);
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}
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| T_VALIDATOR T_STRING
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{
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m_RuleLists.top()->SetValidator($2);
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free($2);
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}
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| T_ATTRIBUTE type T_STRING
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{
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TypeRule rule($2, $3, TypeRuleList::Ptr(), yylloc);
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free($3);
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m_RuleLists.top()->AddRule(rule);
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}
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| T_ATTRIBUTE type T_STRING typerulelist
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{
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TypeRule rule($2, $3, *$4, yylloc);
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free($3);
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delete $4;
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m_RuleLists.top()->AddRule(rule);
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}
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;
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type_inherits_specifier: /* empty */
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| T_INHERITS T_STRING
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{
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m_Type->SetParent($2);
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free($2);
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}
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;
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type: T_TYPE_DICTIONARY
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| T_TYPE_NUMBER
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| T_TYPE_STRING
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| T_TYPE_SCALAR
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| T_TYPE_ANY
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{
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$$ = $1;
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}
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;
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object:
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{
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m_Abstract = false;
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m_Local = false;
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}
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attributes T_OBJECT identifier T_STRING
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{
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m_Item = boost::make_shared<ConfigItemBuilder>(yylloc);
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m_Item->SetType($4);
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free($4);
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m_Item->SetName($5);
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free($5);
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m_Item->SetUnit(ConfigCompilerContext::GetContext()->GetUnit());
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}
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object_inherits_specifier expressionlist
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{
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ExpressionList::Ptr exprl = *$8;
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delete $8;
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m_Item->AddExpressionList(exprl);
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m_Item->SetLocal(m_Local);
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m_Item->SetAbstract(m_Abstract);
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ConfigCompilerContext::GetContext()->AddItem(m_Item->Compile());
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m_Item.reset();
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}
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;
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attributes: /* empty */
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| attributes attribute
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;
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attribute: T_ABSTRACT
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{
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m_Abstract = true;
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}
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| T_LOCAL
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{
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m_Local = true;
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}
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;
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object_inherits_list: object_inherits_item
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| object_inherits_list ',' object_inherits_item
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;
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object_inherits_item: T_STRING
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{
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m_Item->AddParent($1);
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free($1);
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}
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;
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object_inherits_specifier: /* empty */
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| T_INHERITS object_inherits_list
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;
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expressionlist: '{'
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{
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m_ExpressionLists.push(boost::make_shared<ExpressionList>());
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}
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expressions
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'}'
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{
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$$ = new Value(m_ExpressionLists.top());
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m_ExpressionLists.pop();
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}
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;
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expressions: expressions_inner
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| expressions_inner ','
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expressions_inner: /* empty */
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| expression
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| expressions_inner ',' expression
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;
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expression: identifier operator value
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{
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Expression expr($1, $2, *$3, yylloc);
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free($1);
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delete $3;
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m_ExpressionLists.top()->AddExpression(expr);
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}
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| identifier '[' T_STRING ']' operator value
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{
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Expression subexpr($3, $5, *$6, yylloc);
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free($3);
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delete $6;
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ExpressionList::Ptr subexprl = boost::make_shared<ExpressionList>();
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subexprl->AddExpression(subexpr);
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Expression expr($1, OperatorPlus, subexprl, yylloc);
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free($1);
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m_ExpressionLists.top()->AddExpression(expr);
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}
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| T_STRING
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{
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Expression expr($1, OperatorSet, $1, yylloc);
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free($1);
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m_ExpressionLists.top()->AddExpression(expr);
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}
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;
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operator: T_EQUAL
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| T_PLUS_EQUAL
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| T_MINUS_EQUAL
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| T_MULTIPLY_EQUAL
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| T_DIVIDE_EQUAL
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{
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$$ = $1;
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}
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;
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array: '['
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{
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m_Array = boost::make_shared<Dictionary>();
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}
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arrayitems
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']'
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{
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$$ = new Value(m_Array);
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m_Array.reset();
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}
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;
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arrayitems: arrayitems_inner
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| arrayitems_inner ','
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arrayitems_inner: /* empty */
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| T_STRING
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{
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m_Array->Add($1);
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free($1);
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}
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| arrayitems_inner ',' T_STRING
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{
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m_Array->Add($3);
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free($3);
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}
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;
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simplevalue: T_STRING
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{
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$$ = new Value($1);
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free($1);
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}
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| T_NUMBER
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{
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$$ = new Value($1);
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}
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| T_NULL
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{
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$$ = new Value();
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}
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;
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value: simplevalue
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| expressionlist
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| array
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{
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$$ = $1;
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}
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;
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%%
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