1 files changed, 119 insertions, 0 deletions
diff --git a/plugins/org.eclipse.dltk.sh.ui/src/org/eclipse/dltk/sh/internal/ui/text/ShellCodeScanner.java b/plugins/org.eclipse.dltk.sh.ui/src/org/eclipse/dltk/sh/internal/ui/text/ShellCodeScanner.java
new file mode 100644
index 0000000..80a8547
--- /dev/null
+++ b/plugins/org.eclipse.dltk.sh.ui/src/org/eclipse/dltk/sh/internal/ui/text/ShellCodeScanner.java
@@ -0,0 +1,119 @@
+/*******************************************************************************
+ * Copyright (c) 2009-2011 Red Hat Inc. and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Alexander Kurtakov - initial API and implementation
+ *     Mat Booth
+ *******************************************************************************/
+package org.eclipse.dltk.sh.internal.ui.text;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.dltk.sh.internal.ui.Activator;
+import org.eclipse.dltk.sh.internal.ui.IShellColorConstants;
+import org.eclipse.dltk.ui.text.AbstractScriptScanner;
+import org.eclipse.dltk.ui.text.IColorManager;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.text.rules.IRule;
+import org.eclipse.jface.text.rules.IToken;
+import org.eclipse.jface.text.rules.IWordDetector;
+import org.eclipse.jface.text.rules.Token;
+import org.eclipse.jface.text.rules.WhitespaceRule;
+import org.eclipse.jface.text.rules.WordRule;
+
+public class ShellCodeScanner extends AbstractScriptScanner {
+	public static class ShellWordDetector implements IWordDetector {
+		@Override
+		public boolean isWordPart(char character) {
+			return (Character.isJavaIdentifierPart(character) && (character != '$')) || (character == '-')
+					|| (character == '.');
+		}
+
+		@Override
+		public boolean isWordStart(char character) {
+			return Character.isJavaIdentifierStart(character) && (character != 36);
+		}
+	}
+
+	public static final String[] KEYWORDS = { "do", "done", "if", "fi", "then", "else", "elif", "case", "esac", "while",
+			"for", "in", "select", "time", "until", "function", "[", "[[", "]", "]]", "set", "unset", "declare" };
+
+	private static List<String> fgCommands = getCommands();
+
+	private static String fgTokenProperties[] = new String[] { IShellColorConstants.SHELL_DEFAULT,
+			IShellColorConstants.SHELL_KEYWORD, IShellColorConstants.SHELL_VARIABLE,
+			IShellColorConstants.SHELL_COMMAND };
+
+	public ShellCodeScanner(IColorManager manager, IPreferenceStore store) {
+		super(manager, store);
+		this.initialize();
+	}
+
+	public static List<String> getCommands() {
+		String path = System.getenv("PATH");
+		List<String> commands = new ArrayList<>();
+		String[] pathEntries = path.split(System.getProperty("path.separator"));
+		for (String pathEntry : pathEntries) {
+			File dir = new File(pathEntry);
+			if (dir.exists() && dir.isDirectory()) {
+
+				File[] files = dir.listFiles();
+
+				// GRO: Prevent NullPointerException
+				if (files == null) {
+					// @formatter:off
+					Activator.getDefault().getLog().log(// +
+							new Status(IStatus.ERROR, Activator.PLUGIN_ID, "listFiles() returned null: " + dir));
+					// @formatter:on
+					files = new File[] {};
+				}
+
+				for (File file : files) {
+					if (file.canExecute()) {
+						if (file.getName().endsWith(".exe")) {
+							commands.add(file.getName().substring(0, file.getName().length() - 4));
+						} else {
+							commands.add(file.getName());
+						}
+					}
+				}
+			}
+		}
+		return commands;
+	}
+
+	@Override
+	protected List<IRule> createRules() {
+		List<IRule> rules = new ArrayList<>();
+		IToken keyword = this.getToken(IShellColorConstants.SHELL_KEYWORD);
+		IToken commandToken = this.getToken(IShellColorConstants.SHELL_COMMAND);
+		IToken other = this.getToken(IShellColorConstants.SHELL_DEFAULT);
+		IToken variable = this.getToken(IShellColorConstants.SHELL_VARIABLE);
+		rules.add(new WhitespaceRule(new WhitespaceDetector()));
+		rules.add(new AssignmentRule(new AssignmentDetector(), Token.UNDEFINED, variable));
+		rules.add(new DollarRule(new DollarDetector(), Token.UNDEFINED, variable));
+		WordRule wordRule = new WordRule(new ShellWordDetector(), other);
+		for (String element : KEYWORDS) {
+			wordRule.addWord(element, keyword);
+		}
+		for (String command : fgCommands) {
+			wordRule.addWord(command, commandToken);
+		}
+		rules.add(wordRule);
+		return rules;
+	}
+
+	@Override
+	protected String[] getTokenProperties() {
+		return fgTokenProperties;
+	}
+
+}