feat: Multiline Search Support: line breaks \n (#5675)

* add: search/replace line break

Author: sekedus

src/edit_session.js

@@ -193,7 +193,7 @@ class EditSession {
 
     /**
      * Get "widgetManager" from EditSession
-     * 
+     *
      * @returns {LineWidgets} object
      */
     get widgetManager() {
@@ -203,18 +203,18 @@ class EditSession {
 
         if (this.$editor)
             widgetManager.attach(this.$editor);
-        
+
         return widgetManager;
     }
 
     /**
      * Set "widgetManager" in EditSession
-     * 
+     *
      * @returns void
      */
     set widgetManager(value) {
         Object.defineProperty(this, "widgetManager", {
-            writable: true, 
+            writable: true,
             enumerable: true,
             configurable: true,
             value: value,
@@ -2751,4 +2751,3 @@ config.defineOptions(EditSession.prototype, "session", {
 });
 
 exports.EditSession = EditSession;
-

src/ext/searchbox.js

@@ -51,6 +51,7 @@ class SearchBox {
         this.element = div.firstChild;
 
         this.setSession = this.setSession.bind(this);
+        this.$onEditorInput = this.onEditorInput.bind(this);
 
         this.$init();
         this.setEditor(editor);
@@ -72,6 +73,11 @@ class SearchBox {
         this.$syncOptions(true);
     }
 
+    // Auto update "updateCounter" and "ace_nomatch"
+    onEditorInput() {
+        this.find(false, false, true);
+    }
+
     /**
      * @param {HTMLElement} sb
      */
@@ -219,6 +225,15 @@ class SearchBox {
                 ? editor.session.getTextRange(this.searchRange)
                 : editor.getValue();
 
+            /**
+             * Convert all line ending variations to Unix-style = \n
+             * Windows (\r\n), MacOS Classic (\r), and Unix (\n)
+             */
+            if (editor.$search.$isMultilineSearch(editor.getLastSearchOptions())) {
+                value = value.replace(/\r\n|\r|\n/g, "\n");
+                editor.session.doc.$autoNewLine = "\n";
+            }
+
             var offset = editor.session.doc.positionToIndex(editor.selection.anchor);
             if (this.searchRange)
                 offset -= editor.session.doc.positionToIndex(this.searchRange.start);
@@ -279,6 +294,7 @@ class SearchBox {
         this.active = false;
         this.setSearchRange(null);
         this.editor.off("changeSession", this.setSession);
+        this.editor.off("input", this.$onEditorInput);
 
         this.element.style.display = "none";
         this.editor.keyBinding.removeKeyboardHandler(this.$closeSearchBarKb);
@@ -292,9 +308,13 @@ class SearchBox {
     show(value, isReplace) {
         this.active = true;
         this.editor.on("changeSession", this.setSession);
+        this.editor.on("input", this.$onEditorInput);
         this.element.style.display = "";
         this.replaceOption.checked = isReplace;
 
+        if (this.editor.$search.$options.regExp)
+            value = lang.escapeRegExp(value);
+
         if (value)
             this.searchInput.value = value;