brichwin
commented
2 months ago I can see this is at least partially implemented. Should I be able to set the Language preference from a web assembly and then process MathML?
I've made a stab at creating a basic wasm/javascript interface: https://github.com/brichwin/MathCATForWeb/
If I try to set the Language preference to en (or other value like es), the set_preference call executes w/o error and other calls to set_preferences execute. However, a call to set_mathml will fail with:
[Error] Error processing MathML: – "Couldn't open zip file Rules/Languages/en/Auto.zip: Didn't find Auto.zip in dir Rules/Languages/en in zip archive." (anonymous function) (index.html:39)
If I don't set the Language preference then calls to set_mathml, get_spoken_text, and get_braille work as expected.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>MathCAT Web</title>
</head>
<body>
<script type="module">
import init, { wasm_set_rules_dir, wasm_get_version, wasm_set_preference, wasm_set_mathml, wasm_get_spoken_text, wasm_get_braille } from './pkg/mathcat_web.js';
async function set_mathcat_pref(pref, value) {
try {
await wasm_set_preference(pref, value);
console.log(`${pref} Preference set to ${value}`);
} catch (error) {
console.error(`Error setting ${pref} preference to ${value}: ${error}`);
}
}
async function run() {
await init();
console.log('MathCAT Version:', wasm_get_version());
try {
await wasm_set_rules_dir('Rules');
console.log('Rules directory set');
await set_mathcat_pref('Language', 'en');
await set_mathcat_pref('SpeechStyle', 'ClearSpeak');
try {
const canonicalMathML = await wasm_set_mathml(`<math><mrow><mi>x</mi><mo>=</mo><msup><mi>y</mi><mn>2</mn></msup></mrow></math>`);
console.log('Canonical MathML:', canonicalMathML);
const spokenText = await wasm_get_spoken_text();
console.log('Spoken Text:', spokenText);
} catch (error) {
console.error('Error processing MathML:', error);
}
try {
const braille = await wasm_get_braille('');
console.log('Braille:', braille);
} catch (error) {
console.error('Error getting braille:', error);
}
} catch (error) {
console.error('Error setting rules directory:', error);
console.error('Cannot continue, rules directory must be set before calling other MathCAT functions.')
}
}
run();
</script>
</body>
</html>
NSoiffer
Each language file is about 500k. As the number of languages gets bigger, this is means a substantial size increase for MathCAT.
There is a huge amount of compression that can happen when these are zipped up. Typically, only one or two languages will get used, so zipping up each language directory can save a lot of space.
Implementation ideas:
._Rules.txtfile that has the rules listed, one per line (SimpleSpeech, ClearSpeak).