org.eclipse.m2m.atl.adt.ui.text.atl
Class AtlCompletionHelper

java.lang.Object
  org.eclipse.m2m.atl.adt.ui.text.atl.AtlCompletionHelper

public class AtlCompletionHelper
extends java.lang.Object

The completion helper, dedicated to document parsing.

Field Summary

static java.lang.String[]	HIGH_LEVEL_KEYWORDS Context indicators.
static java.lang.String[]	PARSING_KEYWORDS ATL parsing triggers.

Constructor Summary

AtlCompletionHelper(java.lang.String text)
Creates a new helper initialized with the given text.

Method Summary

AtlModelAnalyser	computeModelAnalyser(int offset, java.lang.String prefix, java.lang.String fileContext) Computes the document part to analyze, process the analysis.
int[]	getElementOffsets(org.eclipse.emf.ecore.EObject element, int baseOffset) Compute the right offset from an element, according to the base offset of the model.
java.lang.String	getLastKeyWord(int offset) Retrieves the last typed keyword.
org.eclipse.emf.ecore.EObject	getLocatedElement(org.eclipse.emf.ecore.EObject root, int offset, int modelOffset) Search the nearest element of the given offset.
static java.lang.String	getLocation(org.eclipse.emf.ecore.EObject element) Returns the element location as String.
java.lang.String	getText(org.eclipse.emf.ecore.EObject locatedElement, int baseOffset) Returns the text associated to the given element.
static boolean	isAtlIdentifierPart(char ch) Checks whether the given char is an ATL identifier part or not.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PARSING_KEYWORDS

public static final java.lang.String[] PARSING_KEYWORDS

ATL parsing triggers.

HIGH_LEVEL_KEYWORDS

public static final java.lang.String[] HIGH_LEVEL_KEYWORDS

Context indicators.

Constructor Detail

AtlCompletionHelper

public AtlCompletionHelper(java.lang.String text)

Creates a new helper initialized with the given text.

Parameters:

text - the text

Method Detail

computeModelAnalyser

public AtlModelAnalyser computeModelAnalyser(int offset,
                                             java.lang.String prefix,
                                             java.lang.String fileContext)
                                      throws org.eclipse.jface.text.BadLocationException

Computes the document part to analyze, process the analysis.

Parameters:

offset - the current offset

prefix - the current prefix

fileContext - the current file context

Returns:

an analyser which provides contextual informations

Throws:

org.eclipse.jface.text.BadLocationException

getText

public java.lang.String getText(org.eclipse.emf.ecore.EObject locatedElement,
                                int baseOffset)
                         throws org.eclipse.jface.text.BadLocationException

Returns the text associated to the given element.

Parameters:

locatedElement - the located element

baseOffset - the base offset of the element model

Returns:

the text, as String

Throws:

org.eclipse.jface.text.BadLocationException

getElementOffsets

public int[] getElementOffsets(org.eclipse.emf.ecore.EObject element,
                               int baseOffset)
                        throws org.eclipse.jface.text.BadLocationException

Compute the right offset from an element, according to the base offset of the model.

Parameters:

element - the given element

baseOffset - the base offset

Returns:

[deboffset, endoffset]

Throws:

org.eclipse.jface.text.BadLocationException

getLocation

public static java.lang.String getLocation(org.eclipse.emf.ecore.EObject element)

Returns the element location as String.

Parameters:

element - the located element

Returns:

the element location as String

getLastKeyWord

public java.lang.String getLastKeyWord(int offset)
                                throws org.eclipse.jface.text.BadLocationException

Retrieves the last typed keyword.

Parameters:

offset - the current offset

Returns:

the last typed keyword

Throws:

org.eclipse.jface.text.BadLocationException

getLocatedElement

public org.eclipse.emf.ecore.EObject getLocatedElement(org.eclipse.emf.ecore.EObject root,
                                                       int offset,
                                                       int modelOffset)
                                                throws org.eclipse.jface.text.BadLocationException

Search the nearest element of the given offset.

Parameters:

root - the root model

offset - the offset

modelOffset - the root model offset

Returns:

the element

Throws:

org.eclipse.jface.text.BadLocationException

isAtlIdentifierPart

public static boolean isAtlIdentifierPart(char ch)

Checks whether the given char is an ATL identifier part or not.

Parameters:

ch - the char

Returns:

true if the given char is an ATL identifier part