Examples with CharStream org.antlr.v4.runtime.CharStream used on opensource projects

Example 71 with CharStream

use of org.antlr.v4.runtime.CharStream in project claw-compiler by C2SM-RCM.

the class FortranLineBreaksFinder method run.

public List<LineBreakInfo> run(InputStream input) throws FortranSyntaxException, IOException {
    lexer.reset();
    parser.reset();
    lexerErrorListener.reset();
    parserErrorListener.reset();
    CharStream chrStrm = CharStreams.fromStream(input, StandardCharsets.US_ASCII);
    lexer.setInputStream(chrStrm);
    CommonTokenStream tokStrm = new CommonTokenStream(lexer);
    parser.setInputStream(tokStrm);
    parser.setBuildParseTree(true);
    ParseTree tree = null;
    try {
        tree = parser.root();
    } catch (CancellationException e) {
    }
    if (lexerErrorListener.error() != null) {
        throw lexerErrorListener.error();
    }
    if (parserErrorListener.error() != null) {
        throw parserErrorListener.error();
    }
    ParseTreeWalker walker = new ParseTreeWalker();
    Listener listener = new Listener();
    try {
        walker.walk(listener, tree);
    } catch (CancellationException e) {
    }
    if (listener.error() != null) {
        throw listener.error();
    }
    return listener.lineBreaks;
}

Example 72 with CharStream

use of org.antlr.v4.runtime.CharStream in project claw-compiler by C2SM-RCM.

the class PreprocessorOutputScanner method run.

/**
 * Only absolute paths are recognized, so the preprocessor should be given only
 * absolute paths to include directories and source file.
 */
public Set<Path> run(InputStream input, OutputStream nonPPOutput) throws Exception {
    lexer.reset();
    parser.reset();
    lexerErrorListener.reset();
    parserErrorListener.reset();
    CharStream chrStrm = CharStreams.fromStream(input, StandardCharsets.US_ASCII);
    lexer.setInputStream(chrStrm);
    CommonTokenStream tokStrm = new CommonTokenStream(lexer);
    parser.setInputStream(tokStrm);
    parser.setBuildParseTree(true);
    ParseTree tree = null;
    try {
        tree = parser.root();
    } catch (CancellationException e) {
    }
    if (lexerErrorListener.error() != null) {
        throw lexerErrorListener.error();
    }
    if (parserErrorListener.error() != null) {
        throw parserErrorListener.error();
    }
    ParseTreeWalker walker = new ParseTreeWalker();
    Listener listener = new Listener(nonPPOutput);
    try {
        walker.walk(listener, tree);
    } catch (CancellationException e) {
    }
    if (listener.error() != null) {
        throw listener.error();
    }
    return listener.includes;
}

Example 73 with CharStream

use of org.antlr.v4.runtime.CharStream in project claw-compiler by C2SM-RCM.

the class FortranDepParser method parse.

public List<StatementInfo> parse(InputStream input) throws FortranException, IOException, Exception {
    lexer.reset();
    parser.reset();
    lexerErrorListener.reset();
    parserErrorListener.reset();
    CharStream chrStrm = CharStreams.fromStream(input, StandardCharsets.US_ASCII);
    lexer.setInputStream(chrStrm);
    CommonTokenStream tokStrm = new CommonTokenStream(lexer);
    parser.setInputStream(tokStrm);
    parser.setBuildParseTree(true);
    ParseTree tree = null;
    try {
        tree = parser.root();
    } catch (CancellationException e) {
    }
    if (lexerErrorListener.error() != null) {
        throw lexerErrorListener.error();
    }
    if (parserErrorListener.error() != null) {
        throw parserErrorListener.error();
    }
    ParseTreeWalker walker = new ParseTreeWalker();
    Listener listener = new Listener(statementsParser, procStatementsParser);
    try {
        walker.walk(listener, tree);
    } catch (CancellationException e) {
    }
    if (listener.error() != null) {
        throw listener.error();
    }
    return listener.statements;
}

Example 74 with CharStream

use of org.antlr.v4.runtime.CharStream in project claw-compiler by C2SM-RCM.

the class FortranDepStatementsRecognizer method run.

Listener run(StatementType type, String input) throws IOException, Exception {
    lexer.reset();
    parser.reset();
    lexerErrorListener.reset();
    parserErrorListener.reset();
    CharStream chrStrm = toCharStream(input);
    lexer.setInputStream(chrStrm);
    CommonTokenStream tokStrm = new CommonTokenStream(lexer);
    parser.setInputStream(tokStrm);
    parser.setBuildParseTree(true);
    ParseTree tree = null;
    try {
        switch(type) {
            case MODULE_OPEN:
                tree = parser.module_open_stmt();
                break;
            case MODULE_CLOSE:
                tree = parser.module_close_stmt();
                break;
            case PROGRAM_OPEN:
                tree = parser.program_open_stmt();
                break;
            case PROGRAM_CLOSE:
                tree = parser.program_close_stmt();
                break;
            case BLOCK_DATA_OPEN:
                tree = parser.block_data_open_stmt();
                break;
            case BLOCK_DATA_CLOSE:
                tree = parser.block_data_close_stmt();
                break;
            case USE_MODULE:
                tree = parser.use_stmt();
                break;
            default:
                throw new Exception("Unexpected statement type");
        }
    } catch (CancellationException e) {
    }
    if (lexerErrorListener.error() != null) {
        throw lexerErrorListener.error();
    }
    if (parserErrorListener.error() != null) {
        throw parserErrorListener.error();
    }
    ParseTreeWalker walker = new ParseTreeWalker();
    Listener listener = new Listener(type);
    walker.walk(listener, tree);
    if (listener.error() != null) {
        throw listener.error();
    }
    return listener;
}

Example 75 with CharStream

use of org.antlr.v4.runtime.CharStream in project claw-compiler by C2SM-RCM.

the class Utils method toCharStream.

public static CharStream toCharStream(String str) throws IOException {
    InputStream inStrm = toInputStream(str);
    CharStream chrStrm = CharStreams.fromStream(inStrm, StandardCharsets.US_ASCII);
    return chrStrm;
}