fri.patterns.interpreter.parsergenerator.util
Class SourceGenerator

java.lang.Object
  |
  +--fri.patterns.interpreter.parsergenerator.util.SourceGenerator

public abstract class SourceGenerator

extends java.lang.Object

Java source generator. Following code generations are supported:

• SemanticSkeleton, code base for a Semantic-implementation of big syntaxes.
• Turn ParserTables (built from a Syntax) into compileable Java-code (for faster loading).
• Turn a Syntax object into compileable Java code (for faster loading).

        SYNTAX: java fri.patterns.interpreter.parsergenerator.util.SourceGenerator [semantic|LALR|SLR|LR] file.syntax [file.syntax ...]
                        LALR|SLR|LR: Generates ParserTable implementation(s) of passed grammar file(s).
                               else: Generates Syntax implementation(s) of passed grammar file(s).
        CAUTION: Files MUST have relative pathes!
        

Author:

(c) 2002, Fritz Ritzberger

Method Summary

static void	generateParserTable(AbstractParserTables parserTables, java.lang.String className, java.lang.String pkgName) Generates Java code from parser tables. makes the output filename and calls parserTables.toSourceFile() then.
static void	generateSemanticSkeleton(Syntax syntax, java.lang.String className, java.lang.String pkgName) Generates a semantic skeleton implementation for a given syntax.
static void	generateSyntaxImpl(Syntax syntax, java.lang.String className, java.lang.String pkgName, java.util.List initialNonterminals) Generates a Java implementation from the passed Syntax object.
static void	main(java.lang.String[] args) Source generator main.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

generateSemanticSkeleton

public static void generateSemanticSkeleton(Syntax syntax,
                                            java.lang.String className,
                                            java.lang.String pkgName)
                                     throws java.lang.Exception

Generates a semantic skeleton implementation for a given syntax.

Parameters:

className - basename of class to generate, semantic will be named className+"Semantic.java"

pkgName - package-name of class to generate

java.lang.Exception

generateParserTable

public static void generateParserTable(AbstractParserTables parserTables,
                                       java.lang.String className,
                                       java.lang.String pkgName)
                                throws java.lang.Exception

Generates Java code from parser tables. makes the output filename and calls parserTables.toSourceFile() then.

Parameters:

parserTables - ParserTables for which the source should stand

className - basename of class to generate

pkgName - name of package of class to generate, can be null

java.lang.Exception

generateSyntaxImpl

public static void generateSyntaxImpl(Syntax syntax,
                                      java.lang.String className,
                                      java.lang.String pkgName,
                                      java.util.List initialNonterminals)
                               throws java.io.IOException

Generates a Java implementation from the passed Syntax object.

Parameters:

syntax - Syntax to convert to Java code.

className - basename of class to generate

pkgName - name of package of class to generate

java.io.IOException

main

public static void main(java.lang.String[] args)

Source generator main. Writes syntax to stderr when launched with no arguments or -h.