From 3433556629221ee58f2c1f8254327a5dbbd2ae0f Mon Sep 17 00:00:00 2001
From: Zack Scholl <zack.scholl@gmail.com>
Date: Sun, 7 Feb 2016 13:38:39 -0500
Subject: [PATCH] Added inline math

---
 routes.go           |  8 ++++++--
 templates/view.tmpl | 11 ++++++++---
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/routes.go b/routes.go
index a752bac..f57ee92 100644
--- a/routes.go
+++ b/routes.go
@@ -65,9 +65,13 @@ func renderMarkdown(c *gin.Context, title string) {
 	html := bluemonday.UGCPolicy().SanitizeBytes(unsafe)
 	html2 := string(html)
 
-	r, _ := regexp.Compile("\\$(.*?)\\$")
+	r, _ := regexp.Compile("\\$\\$(.*?)\\$\\$")
 	for _, s := range r.FindAllString(html2, -1) {
-		html2 = strings.Replace(html2, s, "<div class='tex' data-expr='"+s[1:len(s)-1]+"'></div>", 1)
+		html2 = strings.Replace(html2, s, "<div class='texp' data-expr='"+s[2:len(s)-2]+"'></div>", 1)
+	}
+	r, _ = regexp.Compile("\\$(.*?)\\$")
+	for _, s := range r.FindAllString(html2, -1) {
+		html2 = strings.Replace(html2, s, "<div class='texi' data-expr='"+s[1:len(s)-1]+"'></div>", 1)
 	}
 
 	c.HTML(http.StatusOK, "view.tmpl", gin.H{
diff --git a/templates/view.tmpl b/templates/view.tmpl
index ec58ce5..7ccefe7 100644
--- a/templates/view.tmpl
+++ b/templates/view.tmpl
@@ -45,9 +45,14 @@
 
 <script>
 $( document ).ready(function() {
-  var tex = document.getElementsByClassName("tex");
-  Array.prototype.forEach.call(tex, function(el) {
-      katex.render(el.getAttribute("data-expr"), el);
+  var texi = document.getElementsByClassName("texi");
+  Array.prototype.forEach.call(texi, function(el) {
+      katex.render(el.getAttribute("data-expr"), el, { displayMode: true });
+  });
+
+  var texp = document.getElementsByClassName("texp");
+  Array.prototype.forEach.call(texp, function(el) {
+      katex.render(el.getAttribute("data-expr"), el, { displayMode: false });
   });
 
 });