WPSM Programming Language A simple language that transform simple data structure into complex xML format Wai Y. Wong Peter Chen Seema Gupta Miqdad Mohammed

Background Business to Business data transformation Extensible Markup Language Database schema mapping Extensible Stylesheet Language How does Content Manager handle this?

Motivation Worry free from XML syntax Focusing on dealing with the inventory A powerful tool to handle a mass data An easy tool to learn How does WPSM fulfill these objectives?

WPSM Goals Ease of use Productivity Robust Portable Internet ability

WPSM 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 Semantics Back-End intermediate between Front- End and Library TreeWalker performs semantic checks Two walks of the AST – Symbol Table – Code Generation using Library and Helper Semantic Errors (Run-Time and Compile Time)

WPSM Compiler “*.xf” (WPSM source program) Whole WPSM Compiler is implemented in Java Parser, Lexer, and Tree-walker are generated by ANTLR Target language => Java source code

WPSM Compiler

WPSM Library Simplify WPSM Code Generation Simplify WPSM Syntax Allows for Reusability of methods Reduces output code Makes Upgrades Easier Breaks up Compiler and WPSM Features to allow for easier debugging

WPSM System

WPSM Testing Source File Testing Syntax Testing Dependency Checking Feature Testing Release Control

WPSM Example – Data  XML

WPSM Example -.xf File

Conclusion Great team work TAs’ and professor’s support Struggles Short time VS perfection Questions, Comments, or Suggestions Thanks…