It parses an object design (the syntax conforms to \samp{CWML}, an object modelling language
    that \CodeWorker\ proposes by default) and generates a class diagram as a \samp{png} picture.
    \GraphViz\ is an open source graph drawing software, called here for building the class
    diagram. It requires the description of the graph, generated in \samp{classDiagram.txt}
    by the script \samp{classDiagramGraphviz.cwt}.\\
    This example cannot work without \GraphViz\ installed on the Web server.
    Note that one saves the object design in a virtual file (function \samp{createVirtualTemporaryFile()}).
    It avoids saving the design of the client in a temporary physical file before parsing it.

file "examples/classDiagram.txt";
output "examples/classDiagramResult.html";

// One creates a folder on the server side to store the generated files of the client
setWorkingPath(getEnv("REMOTE_HOST") + "/");

    local tempFile = createVirtualTemporaryFile(editedSpec);
    try {
        parseAsBNF("CWML.cwp", project, tempFile);
        @        <H2>Class diagram</H2>
        generate("classDiagramGraphviz.cwt", project, getWorkingPath() + "classDiagram.txt");
        system("\"c:\\Program Files\\ATT\\GraphViz\\bin\\dot.exe\" -Tpng -o" + getWorkingPath() + "classDiagram.png " + getWorkingPath() + "classDiagram.txt");
@        <IMG src="@getWorkingPath()@classDiagram.png"/>
    } catch(sError) {
        set sError = sError.replaceString('\n', "<BR/>");
        set sError = sError.replaceString('\r', "");
        @        <H3>@sError@</H3>
@        <FORM method=post action="classDiagram.cwt">
            <B>Requirements specification:</B>
            <TEXTAREA name="editedSpec" cols=80 rows=25>@composeHTMLLikeString(editedSpec.replaceString('\r', ""))@</TEXTAREA>
            <INPUT type=submit value="generate it!"/>

Generated by v4.5.3 from CWscript2HTML.cwp.