Truncate long link texts

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/render.js b/lib/render.js
index a39ba73..57cc3b5 100644
--- a/lib/render.js
+++ b/lib/render.js
@@ -15,6 +15,18 @@ var Highlight = require('highlight.js')
 var md = require('ssb-markdown')
 var Diff = require('diff')
 
+var maxWordLength = 80
+var truncateWordsRe = new RegExp('[^\\s<>&"]{' + (maxWordLength+1) + ',}')
+function truncateWord(word) {
+  var len = maxWordLength - 5 // "…[##]"
+  var truncatedLength = word.length - len
+  return word.substr(0, len) + '…<sub>[' + truncatedLength + ']</sub>'
+}
+function truncateWords(text) {
+  // truncate long words to avoid horizontal scrollbar
+  return text.replace(truncateWordsRe, truncateWord)
+}
+
 module.exports = Render
 
 function MdRenderer(render) {
@@ -62,6 +74,7 @@ MdRenderer.prototype.link = function (ref, title, text) {
     href: href !== false ? hrefToken : undefined,
     title: title || undefined
   })
+  text = truncateWords(text)
   // text is already html-escaped
   a.innerHTML = text
   var html = a.outerHTML