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Fixes and updates
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@@ -28,29 +28,29 @@ import org.xml.sax.SAXException;
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/**
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* A basic completion provider implementation. This provider has no
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* understanding of language semantics. It simply checks the text entered up
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* to the caret position for a match against known completions. This is all
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* that is needed in the majority of cases.
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* understanding of language semantics. It simply checks the text entered up to
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* the caret position for a match against known completions. This is all that is
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* needed in the majority of cases.
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*
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* @author Robert Futrell
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* @version 1.0
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*/
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public class DefaultCompletionProvider extends AbstractCompletionProvider {
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protected Segment seg;
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/**
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* Used to speed up {@link #getCompletionsAt(JTextComponent, Point)}.
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*/
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private String lastCompletionsAtText;
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/**
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* Used to speed up {@link #getCompletionsAt(JTextComponent, Point)},
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* since this may be called multiple times in succession (this is usually
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* called by <tt>JTextComponent.getToolTipText()</tt>, and if the user
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* wiggles the mouse while a tool tip is displayed, this method gets
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* repeatedly called. It can be costly so we try to speed it up a tad).
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* Used to speed up {@link #getCompletionsAt(JTextComponent, Point)}, since this
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* may be called multiple times in succession (this is usually called by
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* <tt>JTextComponent.getToolTipText()</tt>, and if the user wiggles the mouse
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* while a tool tip is displayed, this method gets repeatedly called. It can be
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* costly so we try to speed it up a tad).
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*/
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private List<Completion> lastParameterizedCompletionsAt;
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/**
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* Constructor. The returned provider will not be aware of any completions.
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*
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@@ -59,28 +59,27 @@ public class DefaultCompletionProvider extends AbstractCompletionProvider {
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public DefaultCompletionProvider() {
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init();
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}
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/**
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* Creates a completion provider that provides completion for a simple
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* list of words.
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* Creates a completion provider that provides completion for a simple list of
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* words.
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*
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* @param words
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* The words to offer as completion suggestions. If this is
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* <code>null</code>, no completions will be known.
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* @param words The words to offer as completion suggestions. If this is
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* <code>null</code>, no completions will be known.
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* @see BasicCompletion
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*/
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public DefaultCompletionProvider(String[] words) {
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init();
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addWordCompletions(words);
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}
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/**
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* Returns the text just before the current caret position that could be
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* the start of something auto-completable.
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* Returns the text just before the current caret position that could be the
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* start of something auto-completable.
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* <p>
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*
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* This method returns all characters before the caret that are matched
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* by {@link #isValidChar(char)}.
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* This method returns all characters before the caret that are matched by
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* {@link #isValidChar(char)}.
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*
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* {@inheritDoc}
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*/
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@@ -108,7 +107,7 @@ public class DefaultCompletionProvider extends AbstractCompletionProvider {
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len = segEnd - start;
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return len == 0 ? EMPTY_STRING : new String(seg.array, start, len);
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}
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/**
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* {@inheritDoc}
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*/
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@@ -156,7 +155,7 @@ public class DefaultCompletionProvider extends AbstractCompletionProvider {
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lastCompletionsAtText = null;
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return lastParameterizedCompletionsAt = null;
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}
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/**
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* {@inheritDoc}
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*/
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@@ -212,36 +211,33 @@ public class DefaultCompletionProvider extends AbstractCompletionProvider {
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}
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return list;
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}
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/**
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* Initializes this completion provider.
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*/
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protected void init() {
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seg = new Segment();
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}
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/**
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* Returns whether the specified character is valid in an auto-completion.
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* The default implementation is equivalent to
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* "<code>Character.isLetterOrDigit(ch) || ch=='_'</code>". Subclasses
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* can override this method to change what characters are matched.
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* Returns whether the specified character is valid in an auto-completion. The
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* default implementation is equivalent to
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* "<code>Character.isLetterOrDigit(ch) || ch=='_'</code>". Subclasses can
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* override this method to change what characters are matched.
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*
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* @param ch
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* The character.
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* @param ch The character.
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* @return Whether the character is valid.
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*/
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protected boolean isValidChar(char ch) {
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return Character.isLetterOrDigit(ch) || ch == '_';
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}
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/**
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* Loads completions from an XML file. The XML should validate against
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* <code>CompletionXml.dtd</code>.
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*
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* @param file
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* An XML file to load from.
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* @throws IOException
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* If an IO error occurs.
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* @param file An XML file to load from.
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* @throws IOException If an IO error occurs.
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*/
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public void loadFromXML(File file) throws IOException {
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BufferedInputStream bin = new BufferedInputStream(new FileInputStream(file));
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@@ -251,34 +247,28 @@ public class DefaultCompletionProvider extends AbstractCompletionProvider {
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bin.close();
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}
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}
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/**
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* Loads completions from an XML input stream. The XML should validate
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* against <code>CompletionXml.dtd</code>.
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* Loads completions from an XML input stream. The XML should validate against
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* <code>CompletionXml.dtd</code>.
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*
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* @param in
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* The input stream to read from.
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* @throws IOException
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* If an IO error occurs.
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* @param in The input stream to read from.
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* @throws IOException If an IO error occurs.
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*/
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public void loadFromXML(InputStream in) throws IOException {
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loadFromXML(in, null);
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}
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/**
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* Loads completions from an XML input stream. The XML should validate
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* against <code>CompletionXml.dtd</code>.
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* Loads completions from an XML input stream. The XML should validate against
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* <code>CompletionXml.dtd</code>.
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*
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* @param in
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* The input stream to read from.
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* @param cl
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* The class loader to use when loading any extra classes defined
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* in the XML, such as custom {@link FunctionCompletion}s. This
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* may be <code>null</code> if the default is to be used, or if
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* no
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* custom completions are defined in the XML.
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* @throws IOException
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* If an IO error occurs.
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* @param in The input stream to read from.
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* @param cl The class loader to use when loading any extra classes defined in
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* the XML, such as custom {@link FunctionCompletion}s. This may be
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* <code>null</code> if the default is to be used, or if no custom
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* completions are defined in the XML.
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* @throws IOException If an IO error occurs.
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*/
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public void loadFromXML(InputStream in, ClassLoader cl) throws IOException {
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// long start = System.currentTimeMillis();
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@@ -309,15 +299,13 @@ public class DefaultCompletionProvider extends AbstractCompletionProvider {
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bin.close();
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}
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}
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/**
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* Loads completions from an XML file. The XML should validate against
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* <code>CompletionXml.dtd</code>.
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*
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* @param resource
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* A resource the current ClassLoader can get to.
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* @throws IOException
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* If an IO error occurs.
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* @param resource A resource the current ClassLoader can get to.
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* @throws IOException If an IO error occurs.
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*/
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public void loadFromXML(String resource) throws IOException {
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ClassLoader cl = getClass().getClassLoader();
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