refactor(hyper-link): Remove dependency on syntaxTree for hyperlink decorations (#593)

Author: losingle

extensions/hyper-link/src/index.ts

@@ -8,9 +8,9 @@ import {
   ViewUpdate,
 } from '@codemirror/view';
 import { Extension, Range } from '@codemirror/state';
-import { syntaxTree } from '@codemirror/language';
 
 const pathStr = `<svg viewBox="0 0 1024 1024" width="16" height="16" fill="currentColor"><path d="M607.934444 417.856853c-6.179746-6.1777-12.766768-11.746532-19.554358-16.910135l-0.01228 0.011256c-6.986111-6.719028-16.47216-10.857279-26.930349-10.857279-21.464871 0-38.864146 17.400299-38.864146 38.864146 0 9.497305 3.411703 18.196431 9.071609 24.947182l-0.001023 0c0.001023 0.001023 0.00307 0.00307 0.005117 0.004093 2.718925 3.242857 5.953595 6.03853 9.585309 8.251941 3.664459 3.021823 7.261381 5.997598 10.624988 9.361205l3.203972 3.204995c40.279379 40.229237 28.254507 109.539812-12.024871 149.820214L371.157763 796.383956c-40.278355 40.229237-105.761766 40.229237-146.042167 0l-3.229554-3.231601c-40.281425-40.278355-40.281425-105.809861 0-145.991002l75.93546-75.909877c9.742898-7.733125 15.997346-19.668968 15.997346-33.072233 0-23.312962-18.898419-42.211381-42.211381-42.211381-8.797363 0-16.963347 2.693342-23.725354 7.297197-0.021489-0.045025-0.044002-0.088004-0.066515-0.134053l-0.809435 0.757247c-2.989077 2.148943-5.691629 4.669346-8.025791 7.510044l-78.913281 73.841775c-74.178443 74.229608-74.178443 195.632609 0 269.758863l3.203972 3.202948c74.178443 74.127278 195.529255 74.127278 269.707698 0l171.829484-171.880649c74.076112-74.17435 80.357166-191.184297 6.282077-265.311575L607.934444 417.856853z"></path><path d="M855.61957 165.804257l-3.203972-3.203972c-74.17742-74.178443-195.528232-74.178443-269.706675 0L410.87944 334.479911c-74.178443 74.178443-78.263481 181.296089-4.085038 255.522628l3.152806 3.104711c3.368724 3.367701 6.865361 6.54302 10.434653 9.588379 2.583848 2.885723 5.618974 5.355985 8.992815 7.309476 0.025583 0.020466 0.052189 0.041956 0.077771 0.062422l0.011256-0.010233c5.377474 3.092431 11.608386 4.870938 18.257829 4.870938 20.263509 0 36.68962-16.428158 36.68962-36.68962 0-5.719258-1.309832-11.132548-3.645017-15.95846l0 0c-4.850471-10.891048-13.930267-17.521049-20.210297-23.802102l-3.15383-3.102664c-40.278355-40.278355-24.982998-98.79612 15.295358-139.074476l171.930791-171.830507c40.179095-40.280402 105.685018-40.280402 145.965419 0l3.206018 3.152806c40.279379 40.281425 40.279379 105.838513 0 146.06775l-75.686796 75.737962c-10.296507 7.628748-16.97358 19.865443-16.97358 33.662681 0 23.12365 18.745946 41.87062 41.87062 41.87062 8.048303 0 15.563464-2.275833 21.944801-6.211469 0.048095 0.081864 0.093121 0.157589 0.141216 0.240477l1.173732-1.083681c3.616364-2.421142 6.828522-5.393847 9.529027-8.792247l79.766718-73.603345C929.798013 361.334535 929.798013 239.981676 855.61957 165.804257z"></path></svg>`;
+const defaultRegexp = /\b((?:https?|ftp):\/\/[^\s/$.?#].[^\s]*)\b/gi;
 
 export interface HyperLinkState {
   at: number;
@@ -40,28 +40,25 @@ class HyperLinkIcon extends WidgetType {
 }
 
 function hyperLinkDecorations(view: EditorView, anchor?: HyperLinkExtensionOptions['anchor']) {
-  const widgets: Array<Range<Decoration>> = [];
-  for (const range of view.visibleRanges) {
-    syntaxTree(view.state).iterate({
-      from: range.from,
-      to: range.to,
-      enter: ({ type, from, to }) => {
-        const callExp: string = view.state.doc.sliceString(from, to);
-        if (type.name === 'URL') {
-          const widget = Decoration.widget({
+    const widgets: Array<Range<Decoration>> = [];
+    const doc = view.state.doc;
+    let match;
+
+    while ((match = defaultRegexp.exec(doc.toString())) !== null) {
+        const from = match.index;
+        const to = from + match[0].length;
+        const widget = Decoration.widget({
             widget: new HyperLinkIcon({
-              at: to,
-              url: callExp,
-              anchor,
+                at: to,
+                url: match[0],
+                anchor,
             }),
             side: 1,
-          });
-          widgets.push(widget.range(to));
-        }
-      },
-    });
-  }
-  return Decoration.set(widgets);
+        });
+        widgets.push(widget.range(to));
+    }
+
+    return Decoration.set(widgets);
 }
 
 const linkDecorator = (
@@ -71,7 +68,7 @@ const linkDecorator = (
   anchor?: HyperLinkExtensionOptions['anchor'],
 ) =>
   new MatchDecorator({
-    regexp: regexp || /\b((?:https?|ftp):\/\/[^\s/$.?#].[^\s]*)\b/gi,
+    regexp: regexp || defaultRegexp,
     decorate: (add, from, to, match, view) => {
       const url = match[0];
       let urlStr = matchFn && typeof matchFn === 'function' ? matchFn(url, match.input, from, to) : url;