Examples with Statement org.apache.felix.gogo.runtime.Parser.Statement used on opensource projects

Example 6 with Statement

use of org.apache.felix.gogo.runtime.Parser.Statement in project felix by apache.

the class TestParser method testPipeAndOr.

@Test
public void testPipeAndOr() {
    Program x = new Parser("abc|def&&ghi || jkl").program();
    Pipeline p0 = (Pipeline) x.tokens().get(0);
    Statement s00 = (Statement) p0.tokens().get(0);
    assertEquals("|", p0.tokens().get(1).toString());
    Statement s01 = (Statement) p0.tokens().get(2);
    assertEquals("&&", x.tokens().get(1).toString());
    Statement s1 = (Statement) x.tokens().get(2);
    assertEquals("||", x.tokens().get(3).toString());
    Statement s2 = (Statement) x.tokens().get(4);
    assertEquals("abc", s00.tokens().get(0).toString());
    assertEquals("def", s01.tokens().get(0).toString());
    assertEquals("ghi", s1.tokens().get(0).toString());
    assertEquals("jkl", s2.tokens().get(0).toString());
}

Example 7 with Statement

use of org.apache.felix.gogo.runtime.Parser.Statement in project felix by apache.

the class TestParser method testStatements.

@Test
public void testStatements() {
    Program x = new Parser("abc def|ghi jkl|mno pqr").program();
    Pipeline p0 = (Pipeline) x.tokens().get(0);
    Statement s00 = (Statement) p0.tokens().get(0);
    Statement s01 = (Statement) p0.tokens().get(2);
    Statement s02 = (Statement) p0.tokens().get(4);
    assertEquals("abc", s00.tokens().get(0).toString());
    assertEquals("def", s00.tokens().get(1).toString());
    assertEquals("ghi", s01.tokens().get(0).toString());
    assertEquals("jkl", s01.tokens().get(1).toString());
    assertEquals("mno", s02.tokens().get(0).toString());
    assertEquals("pqr", s02.tokens().get(1).toString());
}

Example 8 with Statement

use of org.apache.felix.gogo.runtime.Parser.Statement in project felix by apache.

the class TestParser method testRedir.

@Test
public void testRedir() {
    Program x = new Parser("echo foo&>bar").program();
    Statement s0 = (Statement) x.tokens().get(0);
    assertEquals("echo", s0.tokens().get(0).toString());
    assertEquals("foo", s0.tokens().get(1).toString());
    assertEquals("&>", s0.redirections().get(0).toString());
    assertEquals("bar", s0.redirections().get(1).toString());
    x = new Parser("echo foo1>bar").program();
    s0 = (Statement) x.tokens().get(0);
    assertEquals("echo", s0.tokens().get(0).toString());
    assertEquals("foo1", s0.tokens().get(1).toString());
    assertEquals(">", s0.redirections().get(0).toString());
    assertEquals("bar", s0.redirections().get(1).toString());
    x = new Parser("echo foo 1>bar").program();
    s0 = (Statement) x.tokens().get(0);
    assertEquals("echo", s0.tokens().get(0).toString());
    assertEquals("foo", s0.tokens().get(1).toString());
    assertEquals("1>", s0.redirections().get(0).toString());
    assertEquals("bar", s0.redirections().get(1).toString());
}

Example 9 with Statement

use of org.apache.felix.gogo.runtime.Parser.Statement in project karaf by apache.

the class KarafParser method doParse.

private ParsedLine doParse(String line, int cursor, ParseContext parseContext) throws SyntaxError {
    Program program = null;
    List<Statement> statements = null;
    String repaired = line;
    while (program == null) {
        try {
            org.apache.felix.gogo.runtime.Parser parser = new org.apache.felix.gogo.runtime.Parser(repaired);
            program = parser.program();
            statements = parser.statements();
        } catch (EOFError e) {
            // Make sure we don't loop forever
            if (parseContext == ParseContext.COMPLETE && repaired.length() < line.length() + 1024) {
                repaired = repaired + " " + e.repair();
            } else {
                throw e;
            }
        }
    }
    // Find corresponding statement
    Statement statement = null;
    for (int i = statements.size() - 1; i >= 0; i--) {
        Statement s = statements.get(i);
        if (s.start() <= cursor) {
            boolean isOk = true;
            // check if there are only spaces after the previous statement
            if (s.start() + s.length() < cursor) {
                for (int j = s.start() + s.length(); isOk && j < cursor; j++) {
                    isOk = Character.isWhitespace(line.charAt(j));
                }
            }
            statement = s;
            break;
        }
    }
    if (statement != null && statement.tokens() != null && !statement.tokens().isEmpty()) {
        String cmdName = session.resolveCommand(statement.tokens().get(0).toString());
        String[] parts = cmdName.split(":");
        Command cmd = parts.length == 2 ? session.getRegistry().getCommand(parts[0], parts[1]) : null;
        Parser cmdParser = cmd != null ? cmd.getParser() : null;
        if (cmdParser != null) {
            final CommandLine cmdLine = cmdParser.parse(session, statement.toString(), cursor - statement.start());
            return new ParsedLine() {

                @Override
                public String word() {
                    return cmdLine.getCursorArgument();
                }

                @Override
                public int wordCursor() {
                    return cmdLine.getArgumentPosition();
                }

                @Override
                public int wordIndex() {
                    return cmdLine.getCursorArgumentIndex();
                }

                @Override
                public List<String> words() {
                    return Arrays.asList(cmdLine.getArguments());
                }

                @Override
                public String line() {
                    return cmdLine.getBuffer();
                }

                @Override
                public int cursor() {
                    return cmdLine.getBufferPosition();
                }
            };
        }
        if (repaired != line) {
            Token stmt = statement.subSequence(0, line.length() - statement.start());
            List<Token> tokens = new ArrayList<>(statement.tokens());
            Token last = tokens.get(tokens.size() - 1);
            tokens.set(tokens.size() - 1, last.subSequence(0, line.length() - last.start()));
            return new ParsedLineImpl(program, stmt, cursor, tokens);
        }
        return new ParsedLineImpl(program, statement, cursor, statement.tokens());
    } else {
        // TODO:
        return new ParsedLineImpl(program, program, cursor, Collections.singletonList(program));
    }
}

Example 10 with Statement

use of org.apache.felix.gogo.runtime.Parser.Statement in project karaf by apache.

the class KarafParser method doParse.

private ParsedLine doParse(CharSequence line, int cursor) throws SyntaxError {
    org.apache.felix.gogo.runtime.Parser parser = new org.apache.felix.gogo.runtime.Parser(line);
    Program program = parser.program();
    List<Statement> statements = parser.statements();
    // Find corresponding statement
    Statement statement = null;
    for (int i = statements.size() - 1; i >= 0; i--) {
        Statement s = statements.get(i);
        if (s.start() <= cursor) {
            boolean isOk = true;
            // check if there are only spaces after the previous statement
            if (s.start() + s.length() < cursor) {
                for (int j = s.start() + s.length(); isOk && j < cursor; j++) {
                    isOk = Character.isWhitespace(line.charAt(j));
                }
            }
            statement = s;
            break;
        }
    }
    if (statement != null && statement.tokens() != null && !statement.tokens().isEmpty()) {
        String cmdName = session.resolveCommand(statement.tokens().get(0).toString());
        String[] parts = cmdName.split(":");
        Command cmd = parts.length == 2 ? session.getRegistry().getCommand(parts[0], parts[1]) : null;
        Parser cmdParser = cmd != null ? cmd.getParser() : null;
        if (cmdParser != null) {
            final CommandLine cmdLine = cmdParser.parse(session, statement.toString(), cursor - statement.start());
            return new ParsedLine() {

                @Override
                public String word() {
                    return cmdLine.getCursorArgument();
                }

                @Override
                public int wordCursor() {
                    return cmdLine.getArgumentPosition();
                }

                @Override
                public int wordIndex() {
                    return cmdLine.getCursorArgumentIndex();
                }

                @Override
                public List<String> words() {
                    return Arrays.asList(cmdLine.getArguments());
                }

                @Override
                public String line() {
                    return cmdLine.getBuffer();
                }

                @Override
                public int cursor() {
                    return cmdLine.getBufferPosition();
                }
            };
        }
        return new ParsedLineImpl(program, statement, cursor, statement.tokens());
    } else {
        // TODO:
        return new ParsedLineImpl(program, program, cursor, Collections.singletonList(program));
    }
}