Update to KaTeX v0.5.1

editions/katexdemo/tiddlers/HelloThere.tid

@@ -70,7 +70,7 @@ For more flexibility the KaTeX widget can also be used via the full widget synta
 
 ! Error Handling
 
-An warning message is displayed if KaTeX detects a problem with the ~LaTeX syntax. For example:
+Any LaTeX syntax errors are flagged with the problematic syntax highlighted. For example:
 
 ```
 $$\displaystyle f(x) = \int_{-\infty}^\infinity\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi$$

editions/prerelease/tiddlers/Release 5.1.10.tid

@@ -59,7 +59,7 @@ See [[Alice in Wonderland]] for an example. Try opening it without a network con
 
 !! Hackability Improvements
 
-* Updated to KaTeX v0.5.0, with [[several new features|https://github.com/Khan/KaTeX/releases/tag/v0.5.0]]
+* Updated to KaTeX v0.5.1, with [[several new features|https://github.com/Khan/KaTeX/releases]]
 * [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/c4397792f5d396288048bcc3bb4ee8e95dbc2c5e]] added [[recent Operator]]
 * [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/e0aacc84d5f084ff7a53153c590fbff3d24f2e2c]] `publishFilter` to default save template
 * [[Allow|https://github.com/Jermolene/TiddlyWiki5/commit/7dddc925ae93725552b98bc348a07572895da96c]] ''delete'' button to be used in the tiddler view-mode toolbar

plugins/tiddlywiki/katex/files/README.md

@@ -44,6 +44,8 @@ Make sure to include the CSS and font files, but there is no need to include the
 You can provide an object of options as the last argument to `katex.render` and `katex.renderToString`. Available options are:
 
 - `displayMode`: `boolean`. If `true` the math will be rendered in display mode, which will put the math in display style (so `\int` and `\sum` are large, for example), and will center the math on the page on its own line. If `false` the math will be rendered in inline mode. (default: `false`)
+- `throwOnError`: `boolean`. If `true`, KaTeX will throw a `ParseError` when it encounters an unsupported command. If `false`, KaTeX will render the unsupported command as text in the color given by `errorColor`. (default: `true`)
+- `errorColor`: `string`. A color string given in the format `"#XXX"` or `"#XXXXXX"`. This option determines the color which unsupported commands are rendered in. (default: `#cc0000`)
 
 For example:
 

plugins/tiddlywiki/katex/wrapper.js

@@ -35,12 +35,13 @@ KaTeXWidget.prototype.render = function(parent,nextSibling) {
 	// Get the source text
 	var text = this.getAttribute("text",this.parseTreeNode.text || "");
 	// Render it into a span
-	var span = this.document.createElement("span");
+	var span = this.document.createElement("span"),
+		options = {throwOnError: false};
 	try {
 		if(!this.document.isTiddlyWikiFakeDom) {
-			katex.render(text,span);
+			katex.render(text,span,options);
 		} else {
-			span.innerHTML = katex.renderToString(text);
+			span.innerHTML = katex.renderToString(text,options);
 		}
 	} catch(ex) {
 		span.className = "tc-error";