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Allow paths as tokenVocab option

This commit is contained in:
Sebastian Kürten 2016-10-25 10:31:04 +02:00
parent 52523024e0
commit 961f087d7a
1 changed files with 13 additions and 0 deletions
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13
tool/src/org/antlr/v4/Tool.java
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@ -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