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e1e1baa1bd
* Make throwOnError=true the new default
* Handle JS errors as part of the RPC request/response flow
* Return a new Result type with .Err on it
This enables constructs on the form:
```handlebars
{{ with transform.ToMath "c = \\foo{a^2 + b^2}" }}
{{ with .Err }}
{{ warnf "error: %s" . }}
{{ else }}
{{ . }}
{{ end }}
{{ end }}
```
Note that the new `Result` type behaves like `template.HTML` (or a string if needed) when printed, but it will panic if in a error state.
Closes #12748
18 lines
467 B
JavaScript
18 lines
467 B
JavaScript
import { readInput, writeOutput } from './common';
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import katex from 'katex';
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const render = function (input) {
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const data = input.data;
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const expression = data.expression;
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const options = data.options;
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const header = input.header;
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try {
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const output = katex.renderToString(expression, options);
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writeOutput({ header: header, data: { output: output } });
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} catch (e) {
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header.err = e.message;
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writeOutput({ header: header });
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}
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};
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readInput(render);
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