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[visual] Decorate \ce command (#16459)

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GitOrigin-RevId: 0eab030489f97e43874e41d6d4895dc4de46521a
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Alf Eaton 2024-01-12 10:07:32 +00:00 committed by Copybot
parent ded18dd09b
commit ace673b95a
1 changed files with 27 additions and 0 deletions
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27
services/web/frontend/js/features/source-editor/extensions/visual/atomic-decorations.ts
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@ -1108,6 +1108,33 @@ export const atomicDecorations = (options: Options) => {
widget: new TeXWidget(),
}).range(nodeRef.from, nodeRef.to)
)
return false
}
} else if (commandName === '\\ce') {
// Chemical equation/formula, from the `mhchem` CTAN package.
// Handled by the MathJaX mhchem extension:
// https://docs.mathjax.org/en/latest/input/tex/extensions/mhchem.html
if (textArgumentNode && shouldDecorate(state, nodeRef)) {
const innerContent = state.doc
.sliceString(
textArgumentNode.from + 1,
textArgumentNode.to - 1
)
.trim()
if (innerContent.length) {
const outerContent = state.doc.sliceString(
nodeRef.from,
nodeRef.to
)
decorations.push(
Decoration.replace({
widget: new MathWidget(outerContent, false),
}).range(nodeRef.from, nodeRef.to)
)
}
return false
}
} else if (hasCharacterSubstitution(commandName)) {