From 961f087d7ad5bf081c90089dc99a86b7036a04bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20K=C3=BCrten?= <sebastian@topobyte.de>
Date: Tue, 25 Oct 2016 10:31:04 +0200
Subject: [PATCH] Allow paths as tokenVocab option

---
 tool/src/org/antlr/v4/Tool.java | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tool/src/org/antlr/v4/Tool.java b/tool/src/org/antlr/v4/Tool.java
index 244126868..e60fcbca1 100644
--- a/tool/src/org/antlr/v4/Tool.java
+++ b/tool/src/org/antlr/v4/Tool.java
@@ -521,6 +521,19 @@ public class Tool {
 			// Make grammars depend on any tokenVocab options
 			if ( tokenVocabNode!=null ) {
 				String vocabName = tokenVocabNode.getText();
+				// Strip quote characters if any
+				int len = vocabName.length();
+				int firstChar = vocabName.charAt(0);
+				int lastChar = vocabName.charAt(len - 1);
+				if (len >= 2 && firstChar == '\'' && lastChar == '\'') {
+					vocabName = vocabName.substring(1, len-1);
+				}
+				// If the name contains a path delimited by forward slashes,
+				// use only the part after the last slash as the name
+				int lastSlash = vocabName.lastIndexOf('/');
+				if (lastSlash >= 0) {
+					vocabName = vocabName.substring(lastSlash + 1);
+				}
 				g.addEdge(grammarName, vocabName);
 			}
 			// add cycle to graph so we always process a grammar if no error