A good start on the error parsers/hyperlinks for Arduino.

Change-Id: I5f3a3565970d177392ca6af569a3447aabe1be81

toolchains/arduino/org.eclipse.cdt.arduino.core/src/org/eclipse/cdt/arduino/core/internal/build/ArduinoBuildConfiguration.java

@@ -26,6 +26,8 @@ import org.eclipse.cdt.arduino.core.internal.board.ArduinoPackage;
 import org.eclipse.cdt.arduino.core.internal.board.ArduinoPlatform;
 import org.eclipse.cdt.arduino.core.internal.board.ArduinoTool;
 import org.eclipse.cdt.arduino.core.internal.board.ToolDependency;
+import org.eclipse.cdt.arduino.core.internal.console.ArduinoConsoleParser;
+import org.eclipse.cdt.arduino.core.internal.console.ArduinoErrorParser;
 import org.eclipse.cdt.core.CCorePlugin;
 import org.eclipse.cdt.core.model.CoreModel;
 import org.eclipse.cdt.core.model.ICProject;
@@ -37,6 +39,7 @@ import org.eclipse.cdt.core.parser.IScannerInfo;
 import org.eclipse.core.resources.IBuildConfiguration;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IFolder;
+import org.eclipse.core.resources.IMarker;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IProjectDescription;
 import org.eclipse.core.resources.IResource;
@@ -493,4 +496,40 @@ public class ArduinoBuildConfiguration {
 		}
 	}
 
+	public ArduinoConsoleParser[] getBuildConsoleParsers() {
+		// ../src/Test.cpp:4:1: error: 'x' was not declared in this scope
+
+		return new ArduinoConsoleParser[] { new ArduinoErrorParser("(.*?):(\\d+):(\\d+:)? error: (.*)") { //$NON-NLS-1$
+			@Override
+			protected int getSeverity(Matcher matcher) {
+				return IMarker.SEVERITY_ERROR;
+			}
+
+			@Override
+			protected String getMessage(Matcher matcher) {
+				return matcher.group(4);
+			}
+
+			@Override
+			protected int getLineNumber(Matcher matcher) {
+				return Integer.parseInt(matcher.group(2));
+			}
+
+			@Override
+			protected String getFileName(Matcher matcher) {
+				return matcher.group(1);
+			}
+
+			@Override
+			protected int getLinkOffset(Matcher matcher) {
+				return 0;
+			}
+
+			@Override
+			protected int getLinkLength(Matcher matcher) {
+				return matcher.group(1).length() + 1 + matcher.group(2).length() + 1 + matcher.group(3).length();
+			}
+		} };
+	}
+
 }

toolchains/arduino/org.eclipse.cdt.arduino.core/src/org/eclipse/cdt/arduino/core/internal/build/ArduinoBuilder.java

@@ -16,6 +16,7 @@ import java.util.regex.Pattern;
 
 import org.eclipse.cdt.arduino.core.internal.Activator;
 import org.eclipse.cdt.arduino.core.internal.console.ArduinoConsoleService;
+import org.eclipse.cdt.core.model.ICModelMarker;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IncrementalProjectBuilder;
@@ -36,6 +37,8 @@ public class ArduinoBuilder extends IncrementalProjectBuilder {
 	protected IProject[] build(int kind, Map<String, String> args, IProgressMonitor monitor) throws CoreException {
 		IProject project = getProject();
 		try {
+			project.deleteMarkers(ICModelMarker.C_MODEL_PROBLEM_MARKER, true, IResource.DEPTH_INFINITE);
+
 			ArduinoConsoleService consoleService = Activator.getConsoleService();
 			consoleService.writeOutput(String.format("\nBuilding %s\n", project.getName()));
 
@@ -47,7 +50,7 @@ public class ArduinoBuilder extends IncrementalProjectBuilder {
 			config.setEnvironment(processBuilder.environment());
 			Process process = processBuilder.start();
 
-			consoleService.monitor(process, null);
+			consoleService.monitor(process, config.getBuildConsoleParsers(), config.getBuildFolder());
 
 			if (process.exitValue() == 0) {
 				showSizes(config, consoleService);
@@ -66,6 +69,8 @@ public class ArduinoBuilder extends IncrementalProjectBuilder {
 	protected void clean(IProgressMonitor monitor) throws CoreException {
 		try {
 			IProject project = getProject();
+			project.deleteMarkers(ICModelMarker.C_MODEL_PROBLEM_MARKER, true, IResource.DEPTH_INFINITE);
+
 			ArduinoConsoleService consoleService = Activator.getConsoleService();
 			consoleService.writeOutput(String.format("\nCleaning %s\n", project.getName()));
 
@@ -76,7 +81,7 @@ public class ArduinoBuilder extends IncrementalProjectBuilder {
 			config.setEnvironment(processBuilder.environment());
 			Process process = processBuilder.start();
 
-			consoleService.monitor(process, null);
+			consoleService.monitor(process, config.getBuildConsoleParsers(), config.getBuildFolder());
 
 			config.getBuildFolder().refreshLocal(IResource.DEPTH_INFINITE, monitor);
 		} catch (IOException e) {

toolchains/arduino/org.eclipse.cdt.arduino.core/src/org/eclipse/cdt/arduino/core/internal/console/ArduinoConsoleParser.java

@@ -1,8 +1,16 @@
 package org.eclipse.cdt.arduino.core.internal.console;
 
-import java.nio.file.Path;
+public abstract class ArduinoConsoleParser {
 
-public interface ConsoleParser {
+	private final String pattern;
+	private final int flags;
+	private final String lineQualifier;
+
+	protected ArduinoConsoleParser(String pattern, int flags, String lineQualifier) {
+		this.pattern = pattern;
+		this.flags = flags;
+		this.lineQualifier = lineQualifier;
+	}
 
 	/**
 	 * Returns the pattern to be used for matching. The pattern is a string
@@ -10,7 +18,9 @@ public interface ConsoleParser {
 	 * 
 	 * @return the regular expression to be used for matching
 	 */
-	public String getPattern();
+	public String getPattern() {
+		return pattern;
+	}
 
 	/**
 	 * Returns the flags to use when compiling this pattern match listener's
@@ -21,7 +31,9 @@ public interface ConsoleParser {
 	 *         regular expression
 	 * @see java.util.regex.Pattern#compile(java.lang.String, int)
 	 */
-	public int getCompilerFlags();
+	public int getCompilerFlags() {
+		return flags;
+	}
 
 	/**
 	 * Returns a simple regular expression used to identify lines that may match
@@ -34,15 +46,8 @@ public interface ConsoleParser {
 	 * @return a simple regular expression used to identify lines that may match
 	 *         this pattern matcher's complete pattern, or <code>null</code>
 	 */
-	public String getLineQualifier();
-
-	/**
-	 * The pattern has been matched. Perform any necessary actions. Generally
-	 * this would include creating markers for the errors.
-	 * 
-	 * @param text text that matched the pattern
-	 * @param directory calculated current directory
-	 */
-	public void patternMatched(String text, Path directory);
+	public String getLineQualifier() {
+		return lineQualifier;
+	}
 
 }

toolchains/arduino/org.eclipse.cdt.arduino.core/src/org/eclipse/cdt/arduino/core/internal/console/ArduinoConsoleService.java

@@ -12,14 +12,11 @@ package org.eclipse.cdt.arduino.core.internal.console;
 
 import java.io.IOException;
 
+import org.eclipse.core.resources.IFolder;
+
 public interface ArduinoConsoleService {
 
-	/**
-	 * Capture the output for the process and display on the console.
-	 * 
-	 * @param process
-	 */
-	void monitor(Process process, ConsoleParser[] consoleParsers) throws IOException;
+	void monitor(Process process, ArduinoConsoleParser[] consoleParsers, IFolder buildDirectory) throws IOException;
 
 	void writeOutput(String msg) throws IOException;
 

toolchains/arduino/org.eclipse.cdt.arduino.core/src/org/eclipse/cdt/arduino/core/internal/console/ArduinoErrorParser.java

@@ -0,0 +1,67 @@
+package org.eclipse.cdt.arduino.core.internal.console;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.eclipse.cdt.arduino.core.internal.Activator;
+import org.eclipse.cdt.core.model.ICModelMarker;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IFolder;
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.core.runtime.CoreException;
+
+public abstract class ArduinoErrorParser extends ArduinoConsoleParser {
+
+	public static final String LINK_OFFSET = "arduino.link.offset"; //$NON-NLS-1$
+	public static final String LINK_LENGTH = "arduino.link.length"; //$NON-NLS-1$
+
+	private final Pattern errorPattern;
+
+	public ArduinoErrorParser(String pattern, int flags, String lineQualifier) {
+		super(pattern, flags, lineQualifier);
+		this.errorPattern = Pattern.compile(pattern);
+	}
+
+	public ArduinoErrorParser(String pattern) {
+		this(pattern, 0, null);
+	}
+
+	protected abstract String getFileName(Matcher matcher);
+
+	protected abstract int getLineNumber(Matcher matcher);
+
+	protected abstract String getMessage(Matcher matcher);
+
+	protected abstract int getSeverity(Matcher matcher);
+
+	protected abstract int getLinkOffset(Matcher matcher);
+
+	protected abstract int getLinkLength(Matcher matcher);
+
+	public IMarker generateMarker(IFolder buildDirectory, String text) {
+		Matcher matcher = errorPattern.matcher(text);
+		if (matcher.matches()) {
+			String fileName = getFileName(matcher);
+
+			IFile file = buildDirectory.getFile(fileName);
+			if (file.exists()) {
+				try {
+					IMarker marker = file.createMarker(ICModelMarker.C_MODEL_PROBLEM_MARKER);
+					marker.setAttribute(IMarker.MESSAGE, getMessage(matcher));
+					marker.setAttribute(IMarker.SEVERITY, getSeverity(matcher));
+					marker.setAttribute(IMarker.LINE_NUMBER, getLineNumber(matcher));
+					marker.setAttribute(IMarker.CHAR_START, -1);
+					marker.setAttribute(IMarker.CHAR_END, -1);
+					marker.setAttribute(LINK_OFFSET, getLinkOffset(matcher));
+					marker.setAttribute(LINK_LENGTH, getLinkLength(matcher));
+					return marker;
+				} catch (CoreException e) {
+					Activator.log(e);
+					return null;
+				}
+			}
+		}
+		return null;
+	}
+
+}

toolchains/arduino/org.eclipse.cdt.arduino.core/src/org/eclipse/cdt/arduino/core/internal/launch/ArduinoLaunchConfigurationDelegate.java

@@ -48,13 +48,16 @@ public class ArduinoLaunchConfigurationDelegate extends LaunchConfigurationDeleg
 	public boolean buildForLaunch(ILaunchConfiguration configuration, String mode, IProgressMonitor monitor)
 			throws CoreException {
 		IRemoteConnection target = getTarget(configuration);
-		ArduinoRemoteConnection arduinoTarget = target.getService(ArduinoRemoteConnection.class);
-		ArduinoBoard targetBoard = arduinoTarget.getBoard();
+		if (target != null) {
+			ArduinoRemoteConnection arduinoTarget = target.getService(ArduinoRemoteConnection.class);
+			ArduinoBoard targetBoard = arduinoTarget.getBoard();
 
-		// 1. make sure proper build config is set active
-		IProject project = configuration.getMappedResources()[0].getProject();
-		ArduinoBuildConfiguration arduinoConfig = ArduinoBuildConfiguration.getConfig(project, targetBoard, monitor);
-		arduinoConfig.setActive(monitor);
+			// 1. make sure proper build config is set active
+			IProject project = configuration.getMappedResources()[0].getProject();
+			ArduinoBuildConfiguration arduinoConfig = ArduinoBuildConfiguration.getConfig(project, targetBoard,
+					monitor);
+			arduinoConfig.setActive(monitor);
+		}
 
 		// 2. Run the build
 		return super.buildForLaunch(configuration, mode, monitor);
@@ -102,7 +105,7 @@ public class ArduinoLaunchConfigurationDelegate extends LaunchConfigurationDeleg
 					arduinoConfig.setEnvironment(processBuilder.environment());
 					Process process = processBuilder.start();
 
-					consoleService.monitor(process, null);
+					consoleService.monitor(process, null, null);
 					try {
 						process.waitFor();
 					} catch (InterruptedException e) {

toolchains/arduino/org.eclipse.cdt.arduino.ui/META-INF/MANIFEST.MF

@@ -8,6 +8,7 @@ Require-Bundle: org.eclipse.core.runtime,
  org.eclipse.core.expressions,
  org.eclipse.ui,
  org.eclipse.ui.forms,
+ org.eclipse.jface.text;bundle-version="3.10.0",
  org.eclipse.ui.console,
  org.eclipse.ui.ide,
  org.eclipse.debug.ui,

toolchains/arduino/org.eclipse.cdt.arduino.ui/src/org/eclipse/cdt/arduino/ui/internal/launch/ArduinoConsole.java

@@ -13,12 +13,20 @@ package org.eclipse.cdt.arduino.ui.internal.launch;
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.concurrent.Semaphore;
 
+import org.eclipse.cdt.arduino.core.internal.console.ArduinoConsoleParser;
 import org.eclipse.cdt.arduino.core.internal.console.ArduinoConsoleService;
-import org.eclipse.cdt.arduino.core.internal.console.ConsoleParser;
+import org.eclipse.cdt.arduino.core.internal.console.ArduinoErrorParser;
 import org.eclipse.cdt.arduino.ui.internal.Activator;
 import org.eclipse.cdt.arduino.ui.internal.Messages;
+import org.eclipse.core.resources.IFolder;
+import org.eclipse.core.resources.IResourceChangeEvent;
+import org.eclipse.core.resources.IResourceChangeListener;
+import org.eclipse.core.resources.IncrementalProjectBuilder;
+import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.ui.console.ConsolePlugin;
@@ -26,12 +34,15 @@ import org.eclipse.ui.console.IConsole;
 import org.eclipse.ui.console.MessageConsole;
 import org.eclipse.ui.console.MessageConsoleStream;
 
-public class ArduinoConsole implements ArduinoConsoleService {
+public class ArduinoConsole implements ArduinoConsoleService, IResourceChangeListener {
 
 	private static MessageConsole console;
 	private static MessageConsoleStream out;
 	private static MessageConsoleStream err;
 
+	private IFolder buildDirectory;
+	List<ArduinoPatternMatchListener> listeners = new ArrayList<>();
+
 	public ArduinoConsole() {
 		if (console == null) {
 			console = new MessageConsole(Messages.ArduinoLaunchConsole_0, null);
@@ -48,12 +59,52 @@ public class ArduinoConsole implements ArduinoConsoleService {
 					err.setColor(display.getSystemColor(SWT.COLOR_RED));
 				}
 			});
+			ResourcesPlugin.getWorkspace().addResourceChangeListener(this, IResourceChangeEvent.PRE_BUILD);
 		}
 	}
 
 	@Override
-	public void monitor(final Process process, ConsoleParser[] consoleParsers) throws IOException {
-		// console.clearConsole();
+	public void resourceChanged(IResourceChangeEvent event) {
+		switch (event.getType()) {
+		case IResourceChangeEvent.PRE_BUILD:
+			if (event.getBuildKind() != IncrementalProjectBuilder.AUTO_BUILD) {
+				// TODO this really should be done from the core and only when
+				// our projects are being built
+				console.clearConsole();
+			}
+			break;
+		}
+	}
+
+	public IFolder getBuildDirectory() {
+		return buildDirectory;
+	}
+
+	@Override
+	public void monitor(final Process process, ArduinoConsoleParser[] consoleParsers, IFolder buildDirectory)
+			throws IOException {
+		this.buildDirectory = buildDirectory;
+
+		// Clear the old listeners
+		for (ArduinoPatternMatchListener listener : listeners) {
+			console.removePatternMatchListener(listener);
+		}
+		listeners.clear();
+
+		// Add in the new ones if any
+		if (consoleParsers != null) {
+			for (ArduinoConsoleParser parser : consoleParsers) {
+				ArduinoPatternMatchListener listener;
+				if (parser instanceof ArduinoErrorParser) {
+					listener = new ArduinoErrorMatchListener(this, (ArduinoErrorParser) parser);
+				} else {
+					continue;
+				}
+				listeners.add(listener);
+				console.addPatternMatchListener(listener);
+			}
+		}
+
 		console.activate();
 
 		final Semaphore sema = new Semaphore(-1);

toolchains/arduino/org.eclipse.cdt.arduino.ui/src/org/eclipse/cdt/arduino/ui/internal/launch/ArduinoErrorMatchListener.java

@@ -0,0 +1,30 @@
+package org.eclipse.cdt.arduino.ui.internal.launch;
+
+import org.eclipse.cdt.arduino.core.internal.console.ArduinoErrorParser;
+import org.eclipse.cdt.arduino.ui.internal.Activator;
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.ui.console.PatternMatchEvent;
+
+public class ArduinoErrorMatchListener extends ArduinoPatternMatchListener {
+
+	public ArduinoErrorMatchListener(ArduinoConsole arduinoConsole, ArduinoErrorParser parser) {
+		super(arduinoConsole, parser);
+	}
+
+	@Override
+	public void matchFound(PatternMatchEvent event) {
+		try {
+			String text = textConsole.getDocument().get(event.getOffset(), event.getLength());
+			IMarker marker = ((ArduinoErrorParser) parser).generateMarker(arduinoConsole.getBuildDirectory(), text);
+			if (marker != null) {
+				textConsole.addHyperlink(new ArduinoHyperlink(marker),
+						event.getOffset() + marker.getAttribute(ArduinoErrorParser.LINK_OFFSET, 0),
+						marker.getAttribute(ArduinoErrorParser.LINK_LENGTH, event.getLength()));
+			}
+		} catch (BadLocationException e) {
+			Activator.log(e);
+		}
+	}
+
+}

toolchains/arduino/org.eclipse.cdt.arduino.ui/src/org/eclipse/cdt/arduino/ui/internal/launch/ArduinoHyperlink.java

@@ -0,0 +1,37 @@
+package org.eclipse.cdt.arduino.ui.internal.launch;
+
+import org.eclipse.cdt.arduino.ui.internal.Activator;
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.PartInitException;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.console.IHyperlink;
+import org.eclipse.ui.ide.IDE;
+
+public class ArduinoHyperlink implements IHyperlink {
+
+	private final IMarker marker;
+
+	public ArduinoHyperlink(IMarker marker) {
+		this.marker = marker;
+	}
+
+	@Override
+	public void linkEntered() {
+	}
+
+	@Override
+	public void linkExited() {
+	}
+
+	@Override
+	public void linkActivated() {
+		IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
+		try {
+			IDE.openEditor(page, marker);
+		} catch (PartInitException e) {
+			Activator.log(e);
+		}
+	}
+
+}

toolchains/arduino/org.eclipse.cdt.arduino.ui/src/org/eclipse/cdt/arduino/ui/internal/launch/ArduinoPatternMatchListener.java

@@ -0,0 +1,43 @@
+package org.eclipse.cdt.arduino.ui.internal.launch;
+
+import org.eclipse.cdt.arduino.core.internal.console.ArduinoConsoleParser;
+import org.eclipse.ui.console.IPatternMatchListener;
+import org.eclipse.ui.console.TextConsole;
+
+public abstract class ArduinoPatternMatchListener implements IPatternMatchListener {
+
+	protected final ArduinoConsole arduinoConsole;
+	protected final ArduinoConsoleParser parser;
+
+	protected TextConsole textConsole;
+
+	public ArduinoPatternMatchListener(ArduinoConsole arduinoConsole, ArduinoConsoleParser parser) {
+		this.arduinoConsole = arduinoConsole;
+		this.parser = parser;
+	}
+
+	@Override
+	public void connect(TextConsole console) {
+		this.textConsole = console;
+	}
+
+	@Override
+	public void disconnect() {
+	}
+
+	@Override
+	public String getPattern() {
+		return parser.getPattern();
+	}
+
+	@Override
+	public int getCompilerFlags() {
+		return parser.getCompilerFlags();
+	}
+
+	@Override
+	public String getLineQualifier() {
+		return parser.getLineQualifier();
+	}
+
+}