json encode valid characters

so escaped characters don't get changed back to plain characters

quiz/generic/proof.php

@@ -24,15 +24,15 @@
 }
 // 'quiz' will result in codepoints for quizzes
 $quiz = get_project_or_quiz("quiz");
-$valid_character_pattern = build_character_regex_filter($quiz->get_valid_codepoints(), "js");
+$valid_character_pattern = json_encode(build_character_regex_filter($quiz->get_valid_codepoints(), "js"));
 
 $header_args = [
     "js_files" => [
         "$code_url/tools/proofers/process_diacritcal_markup.js",
         "$code_url/tools/proofers/text_data_processor.js",
     ],
     "js_data" => "
-        var validCharacterPattern = '$valid_character_pattern';
+        var validCharacterPattern = $valid_character_pattern;
     ",
     'body_attributes' => "onload='top.initializeStuff(1)'",
 ];

tools/project_manager/handle_bad_page.php

@@ -79,7 +79,7 @@
         $header = _("Fix Page");
     }
 
-    $valid_character_pattern = build_character_regex_filter($project->get_valid_codepoints(), "js");
+    $valid_character_pattern = json_encode(build_character_regex_filter($project->get_valid_codepoints(), "js"));
     $header_args = [
         "js_files" => [
             "$code_url/pinc/3rdparty/xregexp/xregexp-all.js",
@@ -88,7 +88,7 @@
             "$code_url/tools/project_manager/handle_bad_page.js",
         ],
         "js_data" => "
-            var validCharacterPattern = '$valid_character_pattern';
+            var validCharacterPattern = $valid_character_pattern;
         ",
     ];
 

tools/proofers/proof_frame_enh.inc

@@ -13,7 +13,7 @@ function echo_proof_frame_enh(PPage $ppage): void
     global $code_url;
 
     $project = new Project($ppage->projectid());
-    $valid_character_pattern = build_character_regex_filter($project->get_valid_codepoints(), "js");
+    $valid_character_pattern = json_encode(build_character_regex_filter($project->get_valid_codepoints(), "js"));
     $switch_confirm = json_encode(_('Are you sure you want to save the current page and change layout?'));
     $revert_confirm = json_encode(_("Are you sure you want to save the current page and revert to the original text for this round?"));
 
@@ -46,7 +46,7 @@ function echo_proof_frame_enh(PPage $ppage): void
         function ldAll() {
             top.initializeStuff(1);
         }
-        var validCharacterPattern = '$valid_character_pattern';
+        var validCharacterPattern = $valid_character_pattern;
         var standardInterface = false;
         var switchConfirm = '$switch_confirm';
         var revertConfirm = '$revert_confirm';

tools/proofers/spellcheck_text.inc

@@ -611,7 +611,7 @@ function get_wordcheck_page_header_args(User $user, PPage $ppage): array
     global $code_url, $word_check_messages;
 
     $project = new Project($ppage->projectid());
-    $valid_character_pattern = build_character_regex_filter($project->get_valid_codepoints(), "js");
+    $valid_character_pattern = json_encode(build_character_regex_filter($project->get_valid_codepoints(), "js"));
 
     $storage_key = "proof-enh" . (($user->profile->i_layout == 1) ? "-v" : "-h");
 
@@ -632,7 +632,7 @@ function get_wordcheck_page_header_args(User $user, PPage $ppage): array
         "js_data" => get_page_js($user->profile->i_type == 1 ? 2 : 3) .
             get_control_bar_texts() . "
             var imageData = $image_data;
-            var validCharacterPattern = '$valid_character_pattern';
+            var validCharacterPattern = $valid_character_pattern;
             var wordCheckMessages = " . json_encode($word_check_messages) . ";
         ",
 

tools/proofers/text_frame_std.inc

@@ -9,7 +9,7 @@ function echo_text_frame_std(PPage $ppage): void
     global $code_url;
 
     $project = new Project($ppage->projectid());
-    $valid_character_pattern = build_character_regex_filter($project->get_valid_codepoints(), "js");
+    $valid_character_pattern = json_encode(build_character_regex_filter($project->get_valid_codepoints(), "js"));
     $switch_confirm = json_encode(_('Are you sure you want to save the current page and change layout?'));
     $revert_confirm = json_encode(_("Are you sure you want to save the current page and revert to the original text for this round?"));
 
@@ -29,7 +29,7 @@ function echo_text_frame_std(PPage $ppage): void
         function ldAll() {
             top.initializeStuff(0);
         }
-        var validCharacterPattern = '$valid_character_pattern';
+        var validCharacterPattern = $valid_character_pattern;
         var standardInterface = true;
         var switchConfirm = '$switch_confirm';
         var revertConfirm = '$revert_confirm';