InlineTags: Add settings page

And support multiple prefixes.

This is disabled for now as it hasn't been fully integrated.

assets/langs/en.yaml

@@ -90,6 +90,11 @@ settings:
   remoteSync:
     auto: Automatic
     manual: Manual
+  tags:
+    title: Tags Settings
+    subtitle: Configure how inline tags are parsed
+    enable: Parse Inline Tags
+    prefixes: Inline Tags Prefixes
 
 editors:
   checklist:

lib/core/processors/inline_tags.dart

@@ -1,16 +1,21 @@
-import 'package:gitjournal/core/note.dart';
+import 'package:meta/meta.dart';
 
 class InlineTagsProcessor {
-  // FIXME: Make me configurable
-  final List<String> tagPrefixes = ['#'];
+  final Set<String> tagPrefixes;
 
-  void process(Note note) {}
+  InlineTagsProcessor({@required this.tagPrefixes});
 
   Set<String> extractTags(String text) {
     var tags = <String>{};
 
     for (var prefix in tagPrefixes) {
-      var regexp = RegExp(r'(^|\s)' + prefix + r'([^ ]+)(\s|$)');
+      // FIXME: Do not hardcode this
+      var p = prefix;
+      if (p == '+') {
+        p = '\\+';
+      }
+
+      var regexp = RegExp(r'(^|\s)' + p + r'([^ ]+)(\s|$)');
       var matches = regexp.allMatches(text);
       for (var match in matches) {
         var tag = match.group(2);
@@ -19,7 +24,7 @@ class InlineTagsProcessor {
           tag = tag.substring(0, tag.length - 1);
         }
 
-        var all = tag.split('#');
+        var all = tag.split(prefix);
         for (var t in all) {
           tags.add(t.trim());
         }

lib/features.dart

@@ -2,6 +2,7 @@ import 'package:easy_localization/easy_localization.dart';
 
 class Features {
   static bool perFolderConfig = false;
+  static bool inlineTags = false;
 
   static final all = <Feature>[
     Feature.basicSearch,

lib/screens/settings_screen.dart

@@ -14,6 +14,7 @@ import 'package:gitjournal/screens/settings_experimental.dart';
 import 'package:gitjournal/screens/settings_git_remote.dart';
 import 'package:gitjournal/screens/settings_images.dart';
 import 'package:gitjournal/screens/settings_note_metadata.dart';
+import 'package:gitjournal/screens/settings_tags.dart';
 import 'package:gitjournal/screens/settings_widgets.dart';
 import 'package:gitjournal/settings.dart';
 import 'package:gitjournal/state_container.dart';
@@ -241,6 +242,18 @@ class SettingsListState extends State<SettingsList> {
           Navigator.of(context).push(route);
         },
       ),
+      if (Features.inlineTags)
+        ListTile(
+          title: Text(tr("settings.tags.title")),
+          subtitle: Text(tr("settings.tags.subtitle")),
+          onTap: () {
+            var route = MaterialPageRoute(
+              builder: (context) => SettingsTagsScreen(),
+              settings: const RouteSettings(name: '/settings/tags'),
+            );
+            Navigator.of(context).push(route);
+          },
+        ),
       ListTile(
         title: Text(tr('settings.images.title')),
         subtitle: Text(tr('settings.images.subtitle')),

lib/settings.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 
+import 'package:collection/collection.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:uuid/uuid.dart';
@@ -66,6 +67,8 @@ class Settings extends ChangeNotifier {
   bool zenMode = false;
   bool saveTitleInH1 = true;
 
+  Set<String> inlineTagPrefixes = {'#'};
+
   void load(SharedPreferences pref) {
     onBoardingCompleted = pref.getBool("onBoardingCompleted") ?? false;
 
@@ -142,6 +145,8 @@ class Settings extends ChangeNotifier {
 
     zenMode = pref.getBool("zenMode") ?? zenMode;
     saveTitleInH1 = pref.getBool("saveTitleInH1") ?? saveTitleInH1;
+    inlineTagPrefixes =
+        pref.getStringList("inlineTagPrefixes")?.toSet() ?? inlineTagPrefixes;
   }
 
   Future save() async {
@@ -220,6 +225,8 @@ class Settings extends ChangeNotifier {
         defaultSet.experimentalMarkdownToolbar);
     _setBool(pref, "zenMode", zenMode, defaultSet.zenMode);
     _setBool(pref, "saveTitleInH1", saveTitleInH1, defaultSet.saveTitleInH1);
+    _setStringSet(pref, "inlineTagPrefixes", inlineTagPrefixes,
+        defaultSet.inlineTagPrefixes);
 
     pref.setInt("settingsVersion", version);
 
@@ -252,6 +259,21 @@ class Settings extends ChangeNotifier {
     }
   }
 
+  Future<void> _setStringSet(
+    SharedPreferences pref,
+    String key,
+    Set<String> value,
+    Set<String> defaultValue,
+  ) async {
+    final eq = const SetEquality().equals;
+
+    if (eq(value, defaultValue)) {
+      await pref.remove(key);
+    } else {
+      await pref.setStringList(key, value.toList());
+    }
+  }
+
   Map<String, String> toMap() {
     return <String, String>{
       "onBoardingCompleted": onBoardingCompleted.toString(),
@@ -289,6 +311,7 @@ class Settings extends ChangeNotifier {
       'experimentalMarkdownToolbar': experimentalMarkdownToolbar.toString(),
       'zenMode': zenMode.toString(),
       'saveTitleInH1': saveTitleInH1.toString(),
+      'inlineTagPrefixes': inlineTagPrefixes.join(' '),
     };
   }
 

test/processors/inline_tags_test.dart

@@ -6,7 +6,7 @@ void main() {
   test('Should parse simple tags', () {
     var body = "#hello Hi\nthere how#are you #doing now? #dog";
 
-    var p = InlineTagsProcessor();
+    var p = InlineTagsProcessor(tagPrefixes: {'#'});
     var tags = p.extractTags(body);
 
     expect(tags, {'hello', 'doing', 'dog'});
@@ -15,7 +15,7 @@ void main() {
   test('Ignore . at the end of a tag', () {
     var body = "Hi there #tag.";
 
-    var p = InlineTagsProcessor();
+    var p = InlineTagsProcessor(tagPrefixes: {'#'});
     var tags = p.extractTags(body);
 
     expect(tags, {'tag'});
@@ -24,7 +24,7 @@ void main() {
   test('#a#b should be counted as two tags', () {
     var body = "Hi there #a#b";
 
-    var p = InlineTagsProcessor();
+    var p = InlineTagsProcessor(tagPrefixes: {'#'});
     var tags = p.extractTags(body);
 
     expect(tags, {'a', 'b'});
@@ -33,7 +33,7 @@ void main() {
   test('Non Ascii tags', () {
     var body = "Hi #fíre gone";
 
-    var p = InlineTagsProcessor();
+    var p = InlineTagsProcessor(tagPrefixes: {'#'});
     var tags = p.extractTags(body);
 
     expect(tags, {'fíre'});
@@ -42,12 +42,18 @@ void main() {
   test('Tags with a -', () {
     var body = "Hi #future-me. How are you?";
 
-    var p = InlineTagsProcessor();
+    var p = InlineTagsProcessor(tagPrefixes: {'#'});
     var tags = p.extractTags(body);
 
     expect(tags, {'future-me'});
   });
 
-  // + should work as a prefix
-  // @ should work as a prefix
+  test('Multiple Prefixes', () {
+    var body = "Hi +one+two @foo #doo";
+
+    var p = InlineTagsProcessor(tagPrefixes: {'#', '+', '@'});
+    var tags = p.extractTags(body);
+
+    expect(tags, {'one', 'two', 'foo', 'doo'});
+  });
 }