WASM Clingo

Demo for https://github.com/domoritz/wasm-clingo

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Clingo WASM with AMD Example</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <script src="https://unpkg.com/d3-require@1"></script>
</head>
<body>

<p>
Input:
<pre id="input">
% instance
motive(harry).
motive(sally).
guilty(harry).

% encoding
innocent(Suspect) :- motive(Suspect), not guilty(Suspect).
</pre>
</p>

<p>
Status:
<pre id="status"></pre>
</p>

<p>
Output:
<pre id="out"></pre>
</p>
 
<script>
    d3.require("wasm-clingo@0.3.0").then(Clingo => {
        const Module = {
            locateFile: (file) => `https://unpkg.com/wasm-clingo@0.3.0/${file}`,
            print: function(text) {
                const p = document.createElement('p');
                p.innerText = text;
                document.getElementById('out').appendChild(p);
            },
            printErr: function(err) {
                Module.setStatus('Error')
                console.error(err)
            },
            setStatus: function(text) {
                document.getElementById('status').innerText = text;
            },
            totalDependencies: 0,
            monitorRunDependencies: function(left) {
                this.totalDependencies = Math.max(this.totalDependencies, left);
                Module.setStatus(left ? 'Preparing... (' + (this.totalDependencies-left) + '/' + this.totalDependencies + ')' : 'All downloads complete.');
            }
        }

Clingo(Module).then(clingo => {
            clingo.ccall('run', 'number', ['string', 'string'], [document.getElementById('input').innerText, '0'])
        });

window.onerror = function(event) {
            // TODO: do not warn on ok events like simulating an infinite loop or exitStatus
            Module.setStatus('Exception thrown, see JavaScript console');
            Module.setStatus = function(text) {
                if (text) Module.printErr('[post-exception status] ' + text);
            };
        };
        Module.setStatus('Downloading...');
    });
</script>

</body>
</html>

https://unpkg.com/d3-require@1