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diff --git a/src/main/java/com/gitblit/utils/MessageProcessor.java b/src/main/java/com/gitblit/utils/MessageProcessor.java
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+/*
+ * Copyright 2013 gitblit.com.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.gitblit.utils;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gitblit.IStoredSettings;
+import com.gitblit.Keys;
+import com.gitblit.models.RepositoryModel;
+
+public class MessageProcessor {
+
+	private final Logger logger = LoggerFactory.getLogger(getClass());
+
+	private final IStoredSettings settings;
+
+	public MessageProcessor(IStoredSettings settings) {
+		this.settings = settings;
+	}
+
+	/**
+	 * Returns an html version of the commit message with any global or
+	 * repository-specific regular expression substitution applied.
+	 *
+	 * This method uses the preferred renderer to transform the commit message.
+	 *
+	 * @param repository
+	 * @param text
+	 * @return html version of the commit message
+	 */
+	public String processCommitMessage(RepositoryModel repository, String text) {
+		switch (repository.commitMessageRenderer) {
+		case MARKDOWN:
+			try {
+				String prepared = processCommitMessageRegex(repository.name, text);
+				return MarkdownUtils.transformMarkdown(prepared);
+			} catch (Exception e) {
+				logger.error("Failed to render commit message as markdown", e);
+			}
+			break;
+		default:
+			// noop
+			break;
+		}
+
+		return processPlainCommitMessage(repository.name, text);
+	}
+
+	/**
+	 * Returns an html version of the commit message with any global or
+	 * repository-specific regular expression substitution applied.
+	 *
+	 * This method assumes the commit message is plain text.
+	 *
+	 * @param repositoryName
+	 * @param text
+	 * @return html version of the commit message
+	 */
+	public String processPlainCommitMessage(String repositoryName, String text) {
+		String html = StringUtils.escapeForHtml(text, false);
+		html = processCommitMessageRegex(repositoryName, html);
+		return StringUtils.breakLinesForHtml(html);
+
+	}
+
+	/**
+	 * Apply globally or per-repository specified regex substitutions to the
+	 * commit message.
+	 *
+	 * @param repositoryName
+	 * @param text
+	 * @return the processed commit message
+	 */
+	protected String processCommitMessageRegex(String repositoryName, String text) {
+		Map<String, String> map = new HashMap<String, String>();
+		// global regex keys
+		if (settings.getBoolean(Keys.regex.global, false)) {
+			for (String key : settings.getAllKeys(Keys.regex.global)) {
+				if (!key.equals(Keys.regex.global)) {
+					String subKey = key.substring(key.lastIndexOf('.') + 1);
+					map.put(subKey, settings.getString(key, ""));
+				}
+			}
+		}
+
+		// repository-specific regex keys
+		List<String> keys = settings.getAllKeys(Keys.regex._ROOT + "."
+				+ repositoryName.toLowerCase());
+		for (String key : keys) {
+			String subKey = key.substring(key.lastIndexOf('.') + 1);
+			map.put(subKey, settings.getString(key, ""));
+		}
+
+		for (Entry<String, String> entry : map.entrySet()) {
+			String definition = entry.getValue().trim();
+			String[] chunks = definition.split("!!!");
+			if (chunks.length == 2) {
+				text = text.replaceAll(chunks[0], chunks[1]);
+			} else {
+				logger.warn(entry.getKey()
+						+ " improperly formatted.  Use !!! to separate match from replacement: "
+						+ definition);
+			}
+		}
+		return text;
+	}
+}