client/errors: show errors in inline Markdown

client/js/util/markdown.js

@@ -132,6 +132,34 @@ function formatMarkdown(text) {
     return text;
 }
 
+function formatInlineMarkdown(text) {
+    const renderer = new marked.Renderer();
+    const options = {
+        renderer: renderer,
+        breaks: true,
+        sanitize: true,
+        smartypants: true,
+    };
+    let wrappers = [
+        new TildeWrapper(),
+        new EntityPermalinkWrapper(),
+        new SearchPermalinkWrapper(),
+        new SpoilersWrapper(),
+        new SmallWrapper(),
+        new StrikeThroughWrapper(),
+    ];
+    for (let wrapper of wrappers) {
+        text = wrapper.preprocess(text);
+    }
+    text = marked.inlineLexer(text, [], options);
+    wrappers.reverse();
+    for (let wrapper of wrappers) {
+        text = wrapper.postprocess(text);
+    }
+    return text;
+}
+
 module.exports = {
     formatMarkdown: formatMarkdown,
+    formatInlineMarkdown: formatInlineMarkdown,
 };

client/js/util/misc.js

@@ -95,6 +95,10 @@ function formatMarkdown(text) {
     return markdown.formatMarkdown(text);
 }
 
+function formatInlineMarkdown(text) {
+    return markdown.formatInlineMarkdown(text);
+}
+
 function formatUrlParameters(dict) {
     let result = [];
     for (let key of Object.keys(dict)) {
@@ -230,6 +234,7 @@ module.exports = arrayToObject([
     formatRelativeTime,
     formatFileSize,
     formatMarkdown,
+    formatInlineMarkdown,
     unindent,
     enableExitConfirmation,
     disableExitConfirmation,

client/js/util/views.js

@@ -288,15 +288,15 @@ function showMessage(target, message, className) {
 }
 
 function showError(target, message) {
-    return showMessage(target, message, 'error');
+    return showMessage(target, misc.formatInlineMarkdown(message), 'error');
 }
 
 function showSuccess(target, message) {
-    return showMessage(target, message, 'success');
+    return showMessage(target, misc.formatInlineMarkdown(message), 'success');
 }
 
 function showInfo(target, message) {
-    return showMessage(target, message, 'info');
+    return showMessage(target, misc.formatInlineMarkdown(message), 'info');
 }
 
 function clearMessages(target) {