Model:
	topLevelDeclarations+=TopLevelDeclaration*
	;

TopLevelDeclaration:
	TemplateDeclaration
	// | ...
	;

TemplateDeclaration:
	'template' name=SimpleName
	'{' body+=TemplateBodyDeclaration* '}'
	;

TemplateBodyDeclaration:
	CompilationUnitMatcher
	// | ...
	;

CompilationUnitMatcher:
	// ...
	types+=TypeDeclarationMatcher*
	;

TypeDeclarationMatcher:
	ClassDeclarationMatcher
	// | ...
	;

ClassDeclarationMatcher:
	(modifiersMatcher=ModifiersMatcher)?
	'class'
	// ...
	;

Modifier:
	 'public'
	| 'protected'
	| 'private'
	| 'static'
	| 'abstract'
	| 'final'
	| 'native'
	| 'synchronized'
	| 'transient'
	| 'volatile'
	| 'strictfp'
	;

ModifiersMatcher:
	modifiers+=Modifier+
	;

SimpleName:
	ID
	;

template FirstClass {
	class * {
		* *(..) {
			...
		}
	}
}

grammar de.tu_darmstadt.stg.bt.gll.GLL hidden(WS, ML_COMMENT, SL_COMMENT)

import "http://www.eclipse.org/emf/2002/Ecore" as ecore

generate gLL "http://www.tu_darmstadt.de/stg/bt/gll/GLL"

Model:
	topLevelDeclarations+=TopLevelDeclaration*
	;

TopLevelDeclaration:
	TemplateDeclaration
	// | ...
	;

TemplateDeclaration:
	'template' name=SimpleName
	'{' body+=TemplateBodyDeclaration* '}'
	;

TemplateBodyDeclaration:
	CompilationUnitMatcher
	// | ...
	;

CompilationUnitMatcher:
	// ...
	types+=TypeDeclarationMatcher*
	;

TypeDeclarationMatcher:
	ClassDeclarationMatcher
	// | ...
	;

ClassDeclarationMatcher:
	(modifiersMatcher=ModifiersMatcher)?
	'class'
	// ...
	;

Modifier:
	 'public'
	| 'protected'
	| 'private'
	| 'static'
	| 'abstract'
	| 'final'
	| 'native'
	| 'synchronized'
	| 'transient'
	| 'volatile'
	| 'strictfp'
	;

ModifiersMatcher:
	modifiers+=Modifier+
	;

SimpleName:
	ID
	;

terminal ID:
	'^'?('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'_'|'0'..'9')*
	;

terminal ML_COMMENT:
	'/*' -> '*/'
	;

terminal SL_COMMENT:
	'//' !('\n'|'\r')* ('\r'? '\n')?
	;

terminal WS:
	(' '|'\t'|'\r'|'\n')+
	;

module de.tu_darmstadt.stg.bt.gll.GLL

import org.eclipse.emf.mwe.utils.*
import org.eclipse.xtext.generator.*
import org.eclipse.xtext.ui.generator.*

var grammarURI = "classpath:/de/tu_darmstadt/stg/bt/gll/GLL.xtext"
var file.extensions = "gll"
var projectName = "de.tu_darmstadt.stg.bt.gll"
var runtimeProject = "../${projectName}"

Workflow {
    bean = StandaloneSetup {
		platformUri = "${runtimeProject}/.."
	}

	component = DirectoryCleaner {
		directory = "${runtimeProject}/src-gen"
	}

	component = DirectoryCleaner {
		directory = "${runtimeProject}.ui/src-gen"
	}

	component = Generator {
		pathRtProject = runtimeProject
		pathUiProject = "${runtimeProject}.ui"
		projectNameRt = projectName
		projectNameUi = "${projectName}.ui"
		language = {
			uri = grammarURI
			fileExtensions = file.extensions

			// Java API to access grammar elements (required by several other fragments)
			fragment = grammarAccess.GrammarAccessFragment {}

			// generates Java API for the generated EPackages 
			fragment = ecore.EcoreGeneratorFragment {
			// referencedGenModels = "uri to genmodel, uri to next genmodel"
			}

			// the serialization component
			fragment = parseTreeConstructor.ParseTreeConstructorFragment {}

			// a custom ResourceFactory for use with EMF 
			fragment = resourceFactory.ResourceFactoryFragment {
				fileExtensions = file.extensions
			}

			// The antlr parser generator fragment.
			fragment = parser.antlr.XtextAntlrGeneratorFragment {
				options = {
					backtrack = true
					memoize = true
				}
			}

			// java-based API for validation 
			fragment = validation.JavaValidatorFragment {
				composedCheck = "org.eclipse.xtext.validation.ImportUriValidator"
				composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
				// registerForImportedPackages = true
			}

			// scoping and exporting API
			// fragment = scoping.ImportURIScopingFragment {}
			// fragment = exporting.SimpleNamesFragment {}

			// scoping and exporting API 
			fragment = scoping.ImportNamespacesScopingFragment {}
			fragment = exporting.QualifiedNamesFragment {}
			fragment = builder.BuilderIntegrationFragment {}

			// formatter API 
			fragment = formatting.FormatterFragment {}

			// labeling API 
			fragment = labeling.LabelProviderFragment {}

			// outline API 
			fragment = outline.OutlineTreeProviderFragment {}
			fragment = outline.QuickOutlineFragment {}

			// quickfix API 
			fragment = quickfix.QuickfixProviderFragment {}

			// content assist API  
			fragment = contentAssist.JavaBasedContentAssistFragment {}

			// generates a more lightweight Antlr parser and lexer tailored for content assist  
			fragment = parser.antlr.XtextAntlrUiGeneratorFragment {
				options = {
					backtrack = true
					memoize = true
				}
			}

			// project wizard (optional) 
			// fragment = projectWizard.SimpleProjectWizardFragment {
			// 		generatorProjectName = "${projectName}.generator" 
			//		modelFileExtension = file.extensions
			// }
		}
	}
}

template FirstClass {
	class * {
		* *(..) {
			...
		}
	}
}