Examples with Triple org.antlr.v4.runtime.misc.Triple used on opensource projects

Example 11 with Triple

use of org.antlr.v4.runtime.misc.Triple in project antlr4 by antlr.

the class ParserATNFactory method optional.

/**
 * From {@code (A)?} build either:
 *
 * <pre>
 *  o--A-&gt;o
 *  |     ^
 *  o----&gt;|
 * </pre>
 *
 * or, if {@code A} is a block, just add an empty alt to the end of the
 * block
 */
@Override
public Handle optional(GrammarAST optAST, Handle blk) {
    BlockStartState blkStart = (BlockStartState) blk.left;
    ATNState blkEnd = blk.right;
    preventEpsilonOptionalBlocks.add(new Triple<Rule, ATNState, ATNState>(currentRule, blkStart, blkEnd));
    boolean greedy = ((QuantifierAST) optAST).isGreedy();
    blkStart.nonGreedy = !greedy;
    epsilon(blkStart, blk.right, !greedy);
    optAST.atnState = blk.left;
    return blk;
}

Example 12 with Triple

use of org.antlr.v4.runtime.misc.Triple in project bookish by parrt.

the class Translator method visitLatex.

@Override
public OutputModelObject visitLatex(BookishParser.LatexContext ctx) {
    String text = ctx.getText().trim();
    // \latex{{...}}
    List<String> stuff = extract(latexPattern, text);
    text = stuff.get(0);
    if (target == Tool.Target.LATEX || target == Tool.Target.LATEX_BOOK) {
        return new Latex(this, null, text, text);
    }
    String relativePath = "images/latex-" + md5hash(text) + ".svg";
    String src = outputDir + "/" + relativePath;
    Path outpath = Paths.get(src);
    if (!Files.exists(outpath)) {
        Triple<String, Float, Float> results = texConverter.tex2svg(text, LATEX, BLOCK_EQN_FONT_SIZE);
        String svg = results.a;
        try {
            System.out.println(outpath);
            Files.write(outpath, svg.getBytes());
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    }
    return new Latex(this, relativePath, text, text);
}

Example 13 with Triple

use of org.antlr.v4.runtime.misc.Triple in project bookish by parrt.

the class Translator method visitBlock_eqn.

@Override
public OutputModelObject visitBlock_eqn(BookishParser.Block_eqnContext ctx) {
    String eqn = stripQuotes(ctx.getText(), 3);
    if (target == Tool.Target.LATEX || target == Tool.Target.LATEX_BOOK) {
        return new BlockEquation(this, null, eqn);
    }
    String relativePath = "images/blkeqn-" + md5hash(eqn) + ".svg";
    String src = outputDir + "/" + relativePath;
    Path outpath = Paths.get(src);
    if (!Files.exists(outpath)) {
        Triple<String, Float, Float> results = texConverter.tex2svg(eqn, BLOCKEQN, BLOCK_EQN_FONT_SIZE);
        String svg = results.a;
        try {
            System.out.println(outpath);
            Files.write(outpath, svg.getBytes());
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    }
    return new BlockEquation(this, relativePath, eqn);
}