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silverbullet/webapp/smart_quotes.ts

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import { KeyBinding } from "@codemirror/view";
// TODO: Add support for selection (put quotes around or create blockquote block?)
function keyBindingForQuote(
quote: string,
left: string,
right: string
): KeyBinding {
return {
key: quote,
run: (target): boolean => {
let cursorPos = target.state.selection.main.from;
let chBefore = target.state.sliceDoc(cursorPos - 1, cursorPos);
let quote = right;
if (/\W/.exec(chBefore) && !/[!\?,\.\-=“]/.exec(chBefore)) {
quote = left;
}
target.dispatch({
changes: {
insert: quote,
from: cursorPos,
},
selection: {
anchor: cursorPos + 1,
},
});
return true;
},
};
}
export const smartQuoteKeymap: KeyBinding[] = [
keyBindingForQuote('"', "“", "”"),
keyBindingForQuote("'", "", ""),
];