# Difference between revisions of "The Latex to LSC Compiler"

This page explains how to write Contextul LSCs (Con-LSC) in Latex, compile them into PlayGo LSC instances, and finally execute them.

In nutshell, these are the required steps:

2. Add Latex Con-LSCs to LSC.tex.
3. Execute the Latex2PlayGo compiler.
4. Import the compiled file in PlayGo and execute it.

# The PlayGo Environment

First you need to download (here) a PlayGo version that includes a template project and the Latex2PlayGo compiler.

After extracting the zip file you will find the following directory structure (the structure includes only directories relevant to this tutorial). Directories are marked with (D) and files with (F):

(D) PlayGo_4.0_19042017
|
(D) playgo
|
(F) playgo.exe
(D) workspace
|
(D) Latex2Lsc
|
(F) LSC.tex
(F) GeneratedLSC.lsc
(D) src
|
(F) Latex2PlayGoCompiler.java

Executin playgo.exe will start PlayGo.

# Latex Con-LSC

## The Latex Con-LSC Language

Our group has developed a dedicated Latex package for easily creating diagrams with a simple textual notation, and presenting them graphically.

The package, called pgf-playgo-lsc, is built upon the pgf[1] and pgf-uml[2] packages. The package imlements only part of the PlayGo LSC idioms. The complete list of the supported idoms in Latex Con-LSC is given in the Latex Con-LSC package. The language semantics is defined in the PlayGo userguide, except for the context idioms that are given in the paper.

We present here a short example for creating a Con-LSC chart using pgf-playgo-lsc:

 \begin{LSCcontextualdiagram}{Start PersonInTheRoomCtx on motion}{r:RoomCtx}{r.type==RType.Office}\newcontextlifeline{r}{r}\newlifeline{sensor}{r.mSensor}\coldmonitor{sensor}{motionDetected()}{room}\contextstart{c:PersonInTheRoomCtx}{c.room=r}{room}\end{LSCcontextualdiagram}

# References

1. T. Tantau and C. Feuersnger, “pgf—Create PostScript and PDF graphics in TEX,” Version 3.01a, 08 2015. [Online]. Available: https://www.ctan.org/pkg/pgf
2. X. Yuan, “pgf-umlsd—Draw UML Sequence Diagrams,” Version 0.7, 02 2014. [Online]. Available: https://www.ctan.org/pkg/pgf-umlsd