/** * This visitor methods extracts the list of numeric specified. It creates a token * type <code>NumericList</code> to be added to <code>TokenGroup</code>. */ @Override public RecipeSymbol.Builder visitNumberList(DirectivesParser.NumberListContext ctx) { List<TerminalNode> numbers = ctx.Number(); List<LazyNumber> numerics = new ArrayList<>(); for (TerminalNode number : numbers) { numerics.add(new LazyNumber(number.getText())); } builder.addToken(new NumericList(numerics)); return builder; }
/** * A Directive can include number ranges like start:end=value[,start:end=value]*. This * visitor method allows you to collect all the number ranges and create a token type * <code>Ranges</code>. */ @Override public RecipeSymbol.Builder visitNumberRanges(DirectivesParser.NumberRangesContext ctx) { List<Triplet<Numeric, Numeric,String>> output = new ArrayList<>(); List<DirectivesParser.NumberRangeContext> ranges = ctx.numberRange(); for(DirectivesParser.NumberRangeContext range : ranges) { List<TerminalNode> numbers = range.Number(); String text = range.value().getText(); if (text.startsWith("'") && text.endsWith("'")) { text = text.substring(1, text.length() - 1); } Triplet<Numeric, Numeric, String> val = new Triplet<>(new Numeric(new LazyNumber(numbers.get(0).getText())), new Numeric(new LazyNumber(numbers.get(1).getText())), text ); output.add(val); } builder.addToken(new Ranges(output)); return builder; }
/** * A Directive can consist of numeric field. This visitor method extracts the * numeric value <code>Numeric</code>. */ @Override public RecipeSymbol.Builder visitNumber(DirectivesParser.NumberContext ctx) { LazyNumber number = new LazyNumber(ctx.Number().getText()); builder.addToken(new Numeric(number)); return builder; }
/** * A Directive can include properties (which are a collection of key and value pairs), * this method extracts that token that is being identified as token of type <code>Properties</code>. */ @Override public RecipeSymbol.Builder visitPropertyList(DirectivesParser.PropertyListContext ctx) { Map<String, Token> props = new HashMap<>(); List<DirectivesParser.PropertyContext> properties = ctx.property(); for(DirectivesParser.PropertyContext property : properties) { String identifier = property.Identifier().getText(); Token token; if (property.number() != null) { token = new Numeric(new LazyNumber(property.number().getText())); } else if (property.bool() != null) { token = new Bool(Boolean.valueOf(property.bool().getText())); } else { String text = property.text().getText(); token = new Text(text.substring(1, text.length()-1)); } props.put(identifier, token); } builder.addToken(new Properties(props)); return builder; }