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...	...	@@ -66,7 +66,7 @@
66	66
67	67	= Parsing =
68	68
69		-The generated code includes a parser for text files in your syntax. This parser is simply used with the same interface as for any other EMF models: resource sets. Your final task for this tutorial is to reuse the Turing controller you implemented in the EMF tutorial for simulating Turing Machine models, this time applying it to {{code language="none"}}.tuxt{{/code}} text files. However, instead of using a fixed path to your model file, we will now use a //menu contribution// in order to set the file path dynamically. This contribution will be put into the popup menu of the //Navigator// / //Project Explorer// view by configuring a visibility expression that tests the currently selected (right-clicked) elements. The contribution shall only be visible if the selected files have the extension tuxt, which is assigned to our mighty textual syntax.
	69	+The generated code includes a parser for text files in your syntax. This parser is simply used with the same interface as for any other EMF models: resource sets. Your final task for this tutorial is to reuse the Turing controller you implemented in the EMF tutorial for simulating Turing Machine models, this time applying it to {{code language="none"}}.tuxt{{/code}} text files. However, instead of using a fixed path to your model file, we will now use a //menu contribution// in order to set the file path dynamically.
70	70
71	71	1. Go to the plugin where you created and registered {{code language="none"}}TuringHeadController{{/code}}, the Turing Machine simulator. Open {{code language="none"}}plugin.xml{{/code}} → //Dependencies// and add org.eclipse.ui if not on the list yet. Go to //Extensions// and add org.eclipse.ui.menus.
72	72	1. Add a //menuContribution// element to the new extension and set "popup:org.eclipse.ui.popup.any?after=additions" as //locationURI// (without quotation marks).
...	...	@@ -89,25 +89,20 @@
89	89	Use the following method stub for SetFileHandler{{code language="none"}}{{/code}}:
90	90
91	91	{{code theme="Eclipse" language="java"}}
92		-/**
93		- * {@inheritDoc}
94		- */
95		-@Override
96		-public Object execute(ExecutionEvent event) throws ExecutionException {
97		- ISelection selection = HandlerUtil.getCurrentSelection(event);
98		- if (selection instanceof IStructuredSelection) {
99		- Object element = ((IStructuredSelection) selection).getFirstElement();
100		- if (element instanceof IFile) {
101		- IFile file = (IFile) element;
102		- // TODO update the static reference to the simulation file
103		- }
104		- }
105		- return null;
106		-}
	92	+ /**
	93	+ * {@inheritDoc}
	94	+ */
	95	+ @Override
	96	+ public Object execute(ExecutionEvent event) throws ExecutionException {
	97	+ ISelection selection = HandlerUtil.getCurrentSelection(event);
	98	+ if (selection instanceof IStructuredSelection) {
	99	+ Object element = ((IStructuredSelection) selection).getFirstElement();
	100	+ if (element instanceof IFile) {
	101	+ IFile file = (IFile) element;
	102	+ // TODO update the static reference to the simulation file
	103	+ }
	104	+ }
	105	+ return null;
	106	+ }
107	107	{{/code}}
108	108	)))
109		-1. Add a public static field named {{code language="none"}}modelFile{{/code}} to {{code language="none"}}TuringHeadController{{/code}} and directly set that field in the TODO part of the {{code language="none"}}execute{{/code}} method shown above.
110		-1. Use the resource set code shown in the EMF tutorial for loading model files (without the stand-alone part) in order to load the {{code language="none"}}modelFile{{/code}} in the {{code language="none"}}initialize{{/code}} method.
111		-1. Now you should be able to simulate models written in your textual syntax: start Eclipse, right-click a textual Turing Machine file (*.tuxt), select //Set Simulation File//, and run simulation in your Tape view using the correct controller.
112		-
113		-\\

Confluence.Code.ConfluencePageClass[0]

Id

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1		-2982428
	1	+2982426

URL

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1		-https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/WS12EclPract/pages/2982428/Textual Modeling with Xtext
	1	+https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/WS12EclPract/pages/2982426/Textual Modeling with Xtext