Cool Lexical Features
ANTLR has three great token-related features that are worth demonstrating in our tour. First, weâll see how to deal with formats like XML that have different lexical structures (inside and outside tags) in the same file. Next, weâll learn how to insert a field into a Java class by tweaking the input stream. Itâll show how to generate output that is very similar to the input with minimal effort. And, lastly, weâll see how ANTLR parsers can ignore whitespace and comments without having to throw them out.
Island Grammars: Dealing with Different Formats in the Same File
All the sample input files weâve seen so far contain a single language, but there are common file formats that contain multiple languages. For example, ...
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