Hi!
I need to count the number of classes in correct C# source file. I
wrote the following grammar:
grammar CSharpClassGrammar;
options
{
language=CSharp2;
}
@parser::namespace { CSharpClassGrammar.Generated }
@lexer::namespace { CSharpClassGrammar.Generated }
@header
{
using System;
using System.Collections.Generic;
}
@members
{
private List<string> _classCollector = new List<string>();
public List<string> ClassCollector { get { return
_classCollector; } }
}
/*------------------------------------------------------------------
* PARSER RULES
*------------------------------------------------------------------*/
csfile : class_declaration* EOF
;
class_declaration
: (ACCESSLEVEL | MODIFIERS)* PARTIAL? 'class' CLASSNAME
class_body
';'?
{ _classCollector.Add($CLASSNAME.text); }
;
class_body
: '{' class_declaration* '}'
;
/*------------------------------------------------------------------
* LEXER RULES
*------------------------------------------------------------------*/
ACCESSLEVEL
: 'public' | 'internal' | 'protected' | 'private' | 'protected
internal'
;
MODIFIERS
: 'static' | 'sealed' | 'abstract'
;
PARTIAL
: 'partial'
;
CLASSNAME
: ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'0'..'9'|'_')*
;
COMMENT
: '//' ~('\n'|'\r')* {$channel=HIDDEN;}
| '/*' ( options {greedy=false;} : . )* '*/' {$channel=HIDDEN;}
;
WHITESPACE
: ( '\t' | ' ' | '\r' | '\n'| '\u000C' )+ { $channel = HIDDEN; }
;
Hi!
I need to count the number of classes in correct C# source file. I
wrote the following grammar:
grammar CSharpClassGrammar;
options
{
language=CSharp2;
}
@parser::namespace { CSharpClassGrammar.Generated }
@lexer::namespace { CSharpClassGrammar.Generated }
@header
{
using System;
using System.Collections.Generic;
}
@members
{
private List<string> _classCollector = new List<string>();
public List<string> ClassCollector { get { return
_classCollector; } }
}
/*------------------------------------------------------------------
* PARSER RULES
*------------------------------------------------------------------*/
csfile : class_declaration* EOF
;
class_declaration
: (ACCESSLEVEL | MODIFIERS)* PARTIAL? 'class' CLASSNAME
class_body
';'?
{ _classCollector.Add($CLASSNAME.text); }
;
class_body
: '{' class_declaration* '}'
;
/*------------------------------------------------------------------
* LEXER RULES
*------------------------------------------------------------------*/
ACCESSLEVEL
: 'public' | 'internal' | 'protected' | 'private' | 'protected
internal'
;
MODIFIERS
: 'static' | 'sealed' | 'abstract'
;
PARTIAL
: 'partial'
;
CLASSNAME
: ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'0'..'9'|'_')*
;
COMMENT
: '//' ~('\n'|'\r')* {$channel=HIDDEN;}
| '/*' ( options {greedy=false;} : . )* '*/' {$channel=HIDDEN;}
;
WHITESPACE
: ( '\t' | ' ' | '\r' | '\n'| '\u000C' )+ { $channel = HIDDEN; }
;
This parser correctly count empty classes (and nested classes too)
with empty class-body:
internal class DeclarationClass1
{
class DeclarationClass2
{
public class DeclarationClass3
{
abstract class DeclarationClass4
{
}
}
}
}
I need to count classes with not empty body, such as:
class TestClass
{
int a = 42;
class Nested { }
}
I need to somehow ignore all the code that is "not a class
declaration". In the example above ignore
int a = 42;
How can I do this? May be example for other language?
Please, help!
--
with best regards, Pavel Martynov
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