WPSMWPSM Programming Language Programming Language

A simple language that transformA simple language that transformsimple data structuresimple data structure

intointocomplex complex xxML ML fformatormat

Wai Y. WongPeter ChenSeema GuptaMiqdad Mohammed

BackgroundBackground

Business to Business data transformationExtensible Markup LanguageDatabase schema mappingExtensible Stylesheet Language

How does Content Manager handle this?

MotivationMotivation

Worry free from XML syntaxFocusing on dealing with the inventoryA powerful tool to handle a mass dataAn easy tool to learn

How does WPSM fulfill these objectives?

WPSM GoalsWPSM Goals

Ease of useProductivityRobustPortableInternet ability

WPSM SyntaxWPSM Syntax

WPSM takes in .xf source, .csv or other delimited, and outputs .xml

Source file read as stream of chars by Lexer and converted to stream of tokens

Stream of tokens read by Parser and converted to AST (Syntax checks)

Structure of AST in grammar (i.e root nodes and child nodes)

Token Types: Keyword, Variable, Integer, and String (i.e. BEGIN, END, PRINT(value), IF, WHILE, $1, “string”, 9, FS, RT, $var…)

Lexer and Parser errors

WPSM SemanticsWPSM Semantics

Back-End intermediate between Front-End and Library

TreeWalker performs semantic checksTwo walks of the AST

– Symbol Table– Code Generation using Library and Helper

Semantic Errors (Run-Time and Compile Time)

WPSM CompilerWPSM Compiler

“*.xf” (WPSM source program)Whole WPSM Compiler is implemented

in JavaParser, Lexer, and Tree-walker are

generated by ANTLRTarget language => Java source code

WPSM CompilerWPSM Compiler

WPSM LibraryWPSM Library

Simplify WPSM Code GenerationSimplify WPSM SyntaxAllows for Reusability of methodsReduces output codeMakes Upgrades EasierBreaks up Compiler and WPSM

Features to allow for easier debugging

WPSM SystemWPSM System

WPSM TestingWPSM Testing

Source File TestingSyntax TestingDependency CheckingFeature TestingRelease Control

WPSM Example – Data WPSM Example – Data XML XML

WPSM Example - .xf FileWPSM Example - .xf File

ConclusionConclusion

Great team workTAs’ and professor’s supportStrugglesShort time VS perfectionQuestions, Comments, or SuggestionsThanks…