Use exact in dash trigger command

use exact to prevent dash search in unspecified docsets based on
extension setting

closes #33

package.json

@@ -32,7 +32,8 @@
   ],
   "main": "./out/src/extension",
   "contributes": {
-    "commands": [{
+    "commands": [
+      {
         "command": "extension.dash.specific",
         "title": "Search in Dash for current selection"
       },
@@ -49,7 +50,8 @@
         "title": "Search in Dash for a custom string"
       }
     ],
-    "keybindings": [{
+    "keybindings": [
+      {
         "command": "extension.dash.specific",
         "key": "ctrl+h",
         "mac": "ctrl+h",

src/dash.ts

@@ -40,7 +40,11 @@ export class Dash {
    */
   getKeys(docsets: string[]): string {
     if (docsets.length > 0) {
-      return docsets.join(',');
+      // Dash has behaviour to search another docsets that have similarity with targeted docsets
+      // e.g search to typescript, will also search in vue
+      // Using exact to prevent that so it will search only in targeted docsets
+      const exactDocsets = docsets.map(docset => `exact:${docset}`);
+      return exactDocsets.join(',');
     }
 
     return '';

test/extension.test.ts

@@ -6,7 +6,7 @@ suite('Dash Tests', () => {
     const dash = new Dash('darwin');
     const uri = dash.getCommand('size', ['css', 'less']);
 
-    assert.equal(uri, 'open -g "dash-plugin://query=size&keys=css,less"');
+    assert.equal(uri, 'open -g "dash-plugin://query=size&keys=exact:css,exact:less"');
   });
 
   test('Get command with no keys for macOS', () => {
@@ -22,7 +22,7 @@ suite('Dash Tests', () => {
 
     assert.equal(
       uri,
-      'start dash-plugin:// && start dash-plugin://query=size^&keys=css,less'
+      'start dash-plugin:// && start dash-plugin://query=size^&keys=exact:css,exact:less'
     );
   });
 
@@ -37,7 +37,7 @@ suite('Dash Tests', () => {
     const dash = new Dash('linux');
     const uri = dash.getCommand('size', ['css', 'less']);
 
-    assert.equal(uri, 'zeal "dash-plugin://query=size&keys=css,less"');
+    assert.equal(uri, 'zeal "dash-plugin://query=size&keys=exact:css,exact:less"');
   });
 
   test('Get command with no keys for Linux', () => {
@@ -51,7 +51,7 @@ suite('Dash Tests', () => {
     const dash = new Dash('darwin');
     const keys = dash.getKeys(['css', 'less']);
 
-    assert.equal(keys, 'css,less');
+    assert.equal(keys, 'exact:css,exact:less');
   });
 
   test('Get keys with empty docset', () => {