Examples with Grammar priv.bajdcc.LALR1.grammar.Grammar used on opensource projects

Example 31 with Grammar

use of priv.bajdcc.LALR1.grammar.Grammar in project jMiniLang by bajdcc.

the class ModuleTask method getCodePage.

@Override
public RuntimeCodePage getCodePage() throws Exception {
    if (runtimeCodePage != null)
        return runtimeCodePage;
    String base = ResourceLoader.load(getClass());
    Grammar grammar = new Grammar(base);
    RuntimeCodePage page = grammar.getCodePage();
    IRuntimeDebugInfo info = page.getInfo();
    buildSystemMethod(info);
    buildUtilMethod(info);
    return runtimeCodePage = page;
}

Example 32 with Grammar

use of priv.bajdcc.LALR1.grammar.Grammar in project jMiniLang by bajdcc.

the class ModuleTask method util_calc.

private static String util_calc(String expr) {
    try {
        priv.bajdcc.OP.grammar.Grammar grammar = new priv.bajdcc.OP.grammar.Grammar(expr);
        grammar.addTerminal("i", TokenType.INTEGER, null);
        grammar.addTerminal("PLUS", TokenType.OPERATOR, OperatorType.PLUS);
        grammar.addTerminal("MINUS", TokenType.OPERATOR, OperatorType.MINUS);
        grammar.addTerminal("TIMES", TokenType.OPERATOR, OperatorType.TIMES);
        grammar.addTerminal("DIVIDE", TokenType.OPERATOR, OperatorType.DIVIDE);
        grammar.addTerminal("LPA", TokenType.OPERATOR, OperatorType.LPARAN);
        grammar.addTerminal("RPA", TokenType.OPERATOR, OperatorType.RPARAN);
        String[] nons = new String[] { "E", "T", "F" };
        for (String non : nons) {
            grammar.addNonTerminal(non);
        }
        grammar.addPatternHandler("1", new IPatternHandler() {

            @Override
            public Object handle(List<Token> tokens, List<Object> symbols) {
                return Integer.parseInt(tokens.get(0).object.toString());
            }

            @Override
            public String getPatternName() {
                return "操作数转换";
            }
        });
        grammar.addPatternHandler("010", new IPatternHandler() {

            @Override
            public Object handle(List<Token> tokens, List<Object> symbols) {
                int lop = (int) symbols.get(0);
                int rop = (int) symbols.get(1);
                Token op = tokens.get(0);
                if (op.kToken == TokenType.OPERATOR) {
                    OperatorType kop = (OperatorType) op.object;
                    switch(kop) {
                        case PLUS:
                            return lop + rop;
                        case MINUS:
                            return lop - rop;
                        case TIMES:
                            return lop * rop;
                        case DIVIDE:
                            if (rop == 0) {
                                return lop;
                            } else {
                                return lop / rop;
                            }
                        default:
                            return 0;
                    }
                } else {
                    return 0;
                }
            }

            @Override
            public String getPatternName() {
                return "二元运算";
            }
        });
        grammar.addPatternHandler("101", new IPatternHandler() {

            @Override
            public Object handle(List<Token> tokens, List<Object> symbols) {
                Token ltok = tokens.get(0);
                Token rtok = tokens.get(1);
                Object exp = symbols.get(0);
                if (ltok.object == OperatorType.LPARAN && rtok.object == OperatorType.RPARAN) {
                    // 判断括号
                    return exp;
                }
                return null;
            }

            @Override
            public String getPatternName() {
                return "括号运算";
            }
        });
        grammar.infer("E -> E @PLUS T | E @MINUS T | T");
        grammar.infer("T -> T @TIMES F | T @DIVIDE F | F");
        grammar.infer("F -> @LPA E @RPA | @i");
        grammar.initialize("E");
        return String.valueOf(grammar.run());
    } catch (RegexException e) {
        logger.error("#CALC# Error: " + e.getPosition() + "," + e.getMessage());
    } catch (SyntaxException e) {
        logger.error("#CALC#Error: " + e.getPosition() + "," + e.getMessage() + " " + e.getInfo());
    } catch (GrammarException e) {
        logger.error("#CALC#Error: " + e.getPosition() + "," + e.getMessage() + " " + e.getInfo());
    }
    return "#CALC#Error";
}

Example 33 with Grammar

use of priv.bajdcc.LALR1.grammar.Grammar in project jMiniLang by bajdcc.

the class ModuleFunction method getCodePage.

@Override
public RuntimeCodePage getCodePage() throws Exception {
    if (runtimeCodePage != null)
        return runtimeCodePage;
    String base = ResourceLoader.load(getClass());
    Grammar grammar = new Grammar(base);
    RuntimeCodePage page = grammar.getCodePage();
    IRuntimeDebugInfo info = page.getInfo();
    info.addExternalValue("g__", () -> new RuntimeObject(null));
    return runtimeCodePage = page;
}

Example 34 with Grammar

use of priv.bajdcc.LALR1.grammar.Grammar in project jMiniLang by bajdcc.

the class ModuleLisp method getCodePage.

@Override
public RuntimeCodePage getCodePage() throws Exception {
    if (runtimeCodePage != null)
        return runtimeCodePage;
    String base = ResourceLoader.load(getClass());
    Grammar grammar = new Grammar(base);
    RuntimeCodePage page = grammar.getCodePage();
    IRuntimeDebugInfo info = page.getInfo();
    return runtimeCodePage = page;
}

Example 35 with Grammar

use of priv.bajdcc.LALR1.grammar.Grammar in project jMiniLang by bajdcc.

the class ModuleProc method getCodePage.

@Override
public RuntimeCodePage getCodePage() throws Exception {
    if (runtimeCodePage != null)
        return runtimeCodePage;
    String base = ResourceLoader.load(getClass());
    Grammar grammar = new Grammar(base);
    RuntimeCodePage page = grammar.getCodePage();
    IRuntimeDebugInfo info = page.getInfo();
    buildMethod(info);
    buildPipeMethod(info);
    buildShareMethod(info);
    return runtimeCodePage = page;
}