From 428a6b94ff5c34533b8684e5ae8b019a4dbec07c Mon Sep 17 00:00:00 2001
From: Aleks Kissinger <aleks0@gmail.com>
Date: Sun, 20 Sep 2020 15:07:12 +0100
Subject: [PATCH] math off by default, enable with latex_maths flag

---
 src/HtmlUtils.tsx       | 4 +++-
 src/editor/serialize.ts | 3 ++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/HtmlUtils.tsx b/src/HtmlUtils.tsx
index 46bc7b441c..047a891847 100644
--- a/src/HtmlUtils.tsx
+++ b/src/HtmlUtils.tsx
@@ -28,6 +28,7 @@ import EMOJIBASE_REGEX from 'emojibase-regex';
 import url from 'url';
 import katex from 'katex';
 import { AllHtmlEntities } from 'html-entities';
+import SdkConfig from './SdkConfig';
 
 import {MatrixClientPeg} from './MatrixClientPeg';
 import {tryTransformPermalinkToLocalHref} from "./utils/permalinks/Permalinks";
@@ -50,6 +51,7 @@ const ZWJ_REGEX = new RegExp("\u200D|\u2003", "g");
 // Regex pattern for whitespace characters
 const WHITESPACE_REGEX = new RegExp("\\s", "g");
 
+
 const BIGEMOJI_REGEX = new RegExp(`^(${EMOJIBASE_REGEX.source})+$`, 'i');
 
 const COLOR_REGEX = /^#[0-9a-fA-F]{6}$/;
@@ -411,7 +413,7 @@ export function bodyToHtml(content: IContent, highlights: string[], opts: IOpts
         if (isHtmlMessage) {
             isDisplayedWithHtml = true;
             safeBody = sanitizeHtml(formattedBody, sanitizeParams);
-            if (true) { // TODO: add katex setting
+            if (SdkConfig.get()['latex_maths']) {
                 const mathDelimiters = [
                     { left: "<div data-mx-maths=\"", right: "\">.*?</div>", display: true },
                     { left: "<span data-mx-maths=\"", right: "\">.*?</span>", display: false }
diff --git a/src/editor/serialize.ts b/src/editor/serialize.ts
index 8ec590cba5..72a551a4a3 100644
--- a/src/editor/serialize.ts
+++ b/src/editor/serialize.ts
@@ -19,6 +19,7 @@ import Markdown from '../Markdown';
 import {makeGenericPermalink} from "../utils/permalinks/Permalinks";
 import EditorModel from "./model";
 import { AllHtmlEntities } from 'html-entities';
+import SdkConfig from '../SdkConfig';
 
 export function mdSerialize(model: EditorModel) {
     return model.parts.reduce((html, part) => {
@@ -41,7 +42,7 @@ export function mdSerialize(model: EditorModel) {
 export function htmlSerializeIfNeeded(model: EditorModel, {forceHTML = false} = {}) {
     var md = mdSerialize(model);
 
-    if (true) { // TODO: add katex setting
+    if (SdkConfig.get()['latex_maths']) {
         const mathDelimiters = [ // TODO: make customizable
             { left: "\\$\\$\\$", right: "\\$\\$\\$", display: true },
             { left: "\\$\\$", right: "\\$\\$", display: false }