fix: @param / @returns overly sensitive to whitespace

Closes #1164

Author: Gerrit0

src/lib/converter/factories/comment.ts

@@ -167,7 +167,7 @@ export function parseComment(text: string, comment: Comment = new Comment()): Co
     function readTagLine(line: string, tag: RegExpExecArray) {
         let tagName = tag[1].toLowerCase();
         let paramName: string | undefined;
-        line = line.substr(tagName.length + 1).trim();
+        line = tag[2].trim();
 
         if (tagName === 'return') { tagName = 'returns'; }
         if (tagName === 'param' || tagName === 'typeparam') {
@@ -199,7 +199,7 @@ export function parseComment(text: string, comment: Comment = new Comment()): Co
         }
 
         if (!inCode) {
-          const tag = /^@(\S+)/.exec(line);
+          const tag = /^\s*@(\S+)(.*)$/.exec(line);
           if (tag) {
             return readTagLine(line, tag);
           }

src/test/converter/comment/comment.ts

@@ -43,3 +43,12 @@ export class CommentedClass {
    */
   ignoredprop: string;
 }
+
+/** Function description
+ *
+ *  @param scope Test description.
+ *  @returns Test description.
+ */
+export function gh1164(scope: string) {
+    return scope;
+}

src/test/converter/comment/specs.json

@@ -80,6 +80,59 @@
               "character": 27
             }
           ]
+        },
+        {
+          "id": 11,
+          "name": "gh1164",
+          "kind": 64,
+          "kindString": "Function",
+          "flags": {
+            "isExported": true
+          },
+          "signatures": [
+            {
+              "id": 12,
+              "name": "gh1164",
+              "kind": 4096,
+              "kindString": "Call signature",
+              "flags": {
+                "isExported": true
+              },
+              "comment": {
+                "shortText": "Function description",
+                "returns": "Test description.\n"
+              },
+              "parameters": [
+                {
+                  "id": 13,
+                  "name": "scope",
+                  "kind": 32768,
+                  "kindString": "Parameter",
+                  "flags": {
+                    "isExported": true
+                  },
+                  "comment": {
+                    "text": "Test description."
+                  },
+                  "type": {
+                    "type": "intrinsic",
+                    "name": "string"
+                  }
+                }
+              ],
+              "type": {
+                "type": "intrinsic",
+                "name": "string"
+              }
+            }
+          ],
+          "sources": [
+            {
+              "fileName": "comment.ts",
+              "line": 52,
+              "character": 22
+            }
+          ]
         }
       ],
       "groups": [
@@ -89,6 +142,13 @@
           "children": [
             7
           ]
+        },
+        {
+          "title": "Functions",
+          "kind": 64,
+          "children": [
+            11
+          ]
         }
       ],
       "sources": [