v12 (#5712)

Co-authored-by: MeiMei <30769358+mei23@users.noreply.github.com>
Co-authored-by: Satsuki Yanagi <17376330+u1-liquid@users.noreply.github.com>

src/client/components/formula-core.vue

@@ -0,0 +1,33 @@
+
+<template>
+<div v-if="block" v-html="compiledFormula"></div>
+<span v-else v-html="compiledFormula"></span>
+</template>
+
+<script lang="ts">
+import Vue from 'vue';
+import * as katex from 'katex';
+export default Vue.extend({
+	props: {
+		formula: {
+			type: String,
+			required: true
+		},
+		block: {
+			type: Boolean,
+			required: true
+		}
+	},
+	computed: {
+		compiledFormula(): any {
+			return katex.renderToString(this.formula, {
+				throwOnError: false
+			} as any);
+		}
+	}
+});
+</script>
+
+<style>
+@import "../../../node_modules/katex/dist/katex.min.css";
+</style>