decompiler: Use single quotes

tests/samples/accessibility_dec.blp

@@ -2,7 +2,7 @@ using Gtk 4.0;
 
 Box {
   accessibility {
-    label: _("Hello, world!");
+    label: _('Hello, world!');
     labelled-by: my_label;
     checked: true;
   }

tests/samples/file_filter.blp

@@ -1,18 +1,18 @@
 using Gtk 4.0;
 
 FileFilter {
-  name: "File Filter Name";
+  name: 'File Filter Name';
 
   mime-types [
-    "text/plain",
-    "image/ *",
+    'text/plain',
+    'image/ *',
   ]
 
   patterns [
-    "*.txt",
+    '*.txt',
   ]
 
   suffixes [
-    "png",
+    'png',
   ]
 }

tests/samples/layout_dec.blp

@@ -3,8 +3,8 @@ using Gtk 4.0;
 Grid {
   Label {
     layout {
-      column: "0";
-      row: "1";
+      column: '0';
+      row: '1';
     }
   }
 }

tests/samples/menu_dec.blp

@@ -3,26 +3,26 @@ using Gtk 4.0;
 menu my-menu {
   submenu {
     section {
-      label: "test section";
+      label: 'test section';
     }
 
     item {
-      label: C_("context", "test translated item");
+      label: C_('context', 'test translated item');
     }
 
     item {
-      label: "test item shorthand 1";
+      label: 'test item shorthand 1';
     }
 
     item {
-      label: "test item shorthand 2";
-      action: "app.test-action";
+      label: 'test item shorthand 2';
+      action: 'app.test-action';
     }
 
     item {
-      label: "test item shorthand 3";
-      action: "app.test-action";
-      icon: "test-symbolic";
+      label: 'test item shorthand 3';
+      action: 'app.test-action';
+      icon: 'test-symbolic';
     }
   }
 }

tests/samples/responses.blp

@@ -3,8 +3,8 @@ using Adw 1;
 
 Adw.MessageDialog {
   responses [
-    cancel: _("Cancel"),
-    discard: _("Discard") destructive,
-    save: "Save" suggested disabled,
+    cancel: _('Cancel'),
+    discard: _('Discard') destructive,
+    save: 'Save' suggested disabled,
   ]
 }

tests/samples/scale_marks.blp

@@ -3,7 +3,7 @@ using Gtk 4.0;
 Scale {
   marks [
     mark (-1, bottom),
-    mark (0, top, _("Hello, world!")),
+    mark (0, top, _('Hello, world!')),
     mark (2),
   ]
 }

tests/samples/strings_dec.blp

@@ -0,0 +1,5 @@
+using Gtk 4.0;
+
+Label {
+  label: '\\\\\'Test 1 2 3\n & 4 "5\' 6 \t';
+}

tests/samples/template.blp

@@ -1,7 +1,7 @@
 using Gtk 4.0;
 
 template $TestTemplate : ApplicationWindow {
-  test-property: "Hello, world";
+  test-property: 'Hello, world';
   test-signal => $on_test_signal();
 }
 

tests/samples/translated.blp

@@ -1,9 +1,9 @@
 using Gtk 4.0;
 
 Label {
-  label: _("Hello, world!");
+  label: _('Hello, world!');
 }
 
 Label {
-  label: C_("translation context", "Hello");
+  label: C_('translation context', 'Hello');
 }

tests/samples/unchecked_class_dec.blp

@@ -2,6 +2,6 @@ using Gtk 4.0;
 
 $MyComponent component {
   $MyComponent2 {
-    flags-value: "a|b";
+    flags-value: 'a|b';
   }
 }