92 lines
2.3 KiB
TypeScript
92 lines
2.3 KiB
TypeScript
import {
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getSelection,
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getText,
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insertAtCursor,
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moveCursor,
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replaceRange,
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setSelection,
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} from "@silverbulletmd/plugos-silverbullet-syscall/editor";
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export async function quoteSelection() {
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let text = await getText();
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const selection = await getSelection();
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let from = selection.from;
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while (from >= 0 && text[from] !== "\n") {
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from--;
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}
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from++;
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if (text[from] === ">" && text[from + 1] === " ") {
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// Already quoted, we have to unquote
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text = text.slice(from + 2, selection.to);
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text = text.replaceAll("\n> ", "\n");
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} else {
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text = text.slice(from, selection.to);
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text = `> ${text.replaceAll("\n", "\n> ")}`;
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}
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await replaceRange(from, selection.to, text);
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}
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export function boldCommand() {
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return insertMarker("**");
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}
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export function italicCommand() {
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return insertMarker("_");
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}
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async function insertMarker(marker: string) {
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let text = await getText();
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const selection = await getSelection();
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if (selection.from === selection.to) {
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// empty selection
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if (markerAt(selection.from)) {
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// Already there, skipping ahead
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await moveCursor(selection.from + marker.length);
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} else {
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// Not there, inserting
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await insertAtCursor(marker + marker);
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await moveCursor(selection.from + marker.length);
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}
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} else {
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let from = selection.from;
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let to = selection.to;
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let hasMarker = markerAt(from);
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if (!markerAt(from)) {
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// Maybe just before the cursor? We'll accept that
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from = selection.from - marker.length;
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to = selection.to + marker.length;
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hasMarker = markerAt(from);
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}
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if (!hasMarker) {
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// Adding
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await replaceRange(
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selection.from,
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selection.to,
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marker + text.slice(selection.from, selection.to) + marker
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);
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await setSelection(
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selection.from + marker.length,
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selection.to + marker.length
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);
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} else {
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// Removing
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await replaceRange(
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from,
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to,
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text.substring(from + marker.length, to - marker.length)
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);
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await setSelection(from, to - marker.length * 2);
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}
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}
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function markerAt(pos: number) {
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for (var i = 0; i < marker.length; i++) {
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if (text[pos + i] !== marker[i]) {
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return false;
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}
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}
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return true;
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}
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}
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