StepWordRange.java 文件源码

@Override
public WalkResult walk(ParseTree tree, String value) {
    String actualValue = getActualValue(tree, value);
    String filteredValue;
    if (tree.getChildCount() == 1 && (
          tree.getChild(0) instanceof SingleVersionContext ||
          tree.getChild(0) instanceof SingleVersionWithCommasContext)) {
        filteredValue = VersionSplitter.getInstance().getSplitRange(actualValue, firstWord, lastWord);
    } else {
        filteredValue = WordSplitter.getInstance().getSplitRange(actualValue, firstWord, lastWord);
    }
    if (filteredValue == null) {
        return null;
    }
    return walkNextStep(tree, filteredValue);
}