diff --git a/epigraphista/javascript/epidoc_text_converter.js b/epigraphista/javascript/epidoc_text_converter.js
index 85ef1fc..25fea6f 100644
--- a/epigraphista/javascript/epidoc_text_converter.js
+++ b/epigraphista/javascript/epidoc_text_converter.js
@@ -39,18 +39,24 @@ function convertLeidenToEpidoc (text) {
   // ///////////////////////// //
 
   // <<exemplum>> //
+  // visual explanation:
+  // https://regexper.com/#%3C%3C%28%28%3F%3A%5Ba-z%5D%7Cs%29%2B%29%3E%3E
   text = text.replace(
     RegExp('<<((?:[' + unicodeBlocks + ']|s)+)>>', 'g'),
     '<add place="overstrike">$1</add>'
   )
 
   // [[exemplum]] //
+  // visual explanation:
+  // https://regexper.com/#%5C%5B%5C%5B%28%28%3F%3A%5Ba-z%5D%7Cs%29%2B%29%5C%5D%5C%5D
   text = text.replace(
     RegExp('\\[\\[((?:[' + unicodeBlocks + ']|s)+)\\]\\]', 'g'),
     '<del rend="erasure">$1</del>'
   )
 
   // ((exemplum)) //
+  // visual explanation:
+  // https://regexper.com/#%5C%28%5C%28%28%28%3F%3A%5Ba-z%5D%7Cs%29%2B%29%5C%29%5C%29
   text = text.replace(
     RegExp('\\(\\(((?:[' + unicodeBlocks + ']|s)+)\\)\\)', 'g'),
     '<g type="$1"/>'
@@ -61,44 +67,57 @@ function convertLeidenToEpidoc (text) {
   // ///////////////////////// //
 
   // <exemplum> //
-  // '<exemplum>' will match, but '<<exemplum>>' will NOT match.
+  // visual explanation:
+  // https://regexper.com/#%28%5B%5E%3C%5D%29%3C%28%28%3F%3A%5Ba-z%5D%7Cs%29%2B%29%3E%28%5B%5E%3E%5D%29
   text = text.replace(
-    RegExp('([^<]){0,1}<((?:[' + unicodeBlocks + ']|s)+)>([^>]|$)', 'g'),
+    RegExp('([^<])<((?:[' + unicodeBlocks + ']|s)+)>([^>])', 'g'),
     '$1<supplied reason="omitted">$2</supplied>$3'
   )
 
   // {exemplum} //
+  // visual explanation:
+  // https://regexper.com/#%7B%28%28%3F%3A%5Ba-z%5D%7Cs%29%2B%29%7D
   text = text.replace(
     RegExp('{((?:[' + unicodeBlocks + ']|s)+)}', 'g'),
     '<sic>$1</sic>'
   )
 
   // [c.2] //
+  // visual explanation:
+  // https://regexper.com/#%5C%5Bc%5C.%28%28%3F%3A%5Cd%29%2B%29%5C%5D
   text = text.replace(
     /\[c\.((?:\d)+)\]/g,
     '<gap reason="lost" extent="$1" unit="character"/>'
   )
 
   // [-] //
+  // visual explanation:
+  // https://regexper.com/#%5C%5B-%5C%5D
   text = text.replace(
     /\[-\]/g,
     '<name><gap reason="lost" extent="unknown" unit="character"/></name>'
   )
 
   // [- -] //
+  // visual explanation:
+  // https://regexper.com/#%28%5E%7C%5Cn%29%7B1%7D%28%5Cs%29%7B0%2C%7D%5C%5B-%5Cs-%5C%5D%28%5Cs%29%7B0%2C%7D%28%5Cn%7C%24%29%7B1%7D
   text = text.replace(
-    /(^|\n){1}([\s]){0,}\[\-\s\-\](\s){0,}(\n|$){1}/g,
+    /(^|\n){1}(\s){0,}\[-\s-\](\s){0,}(\n|$){1}/g,
     '$1<gap reason="lost" extent="1" unit="line"/>\n'
   )
 
   // [- -] ? //
+  // visual explanation:
+  // https://regexper.com/#%28%5E%7C%5Cn%29%7B1%7D%28%5B%5Cs%5D%29%7B0%2C%7D%5C%5B-%5Cs-%5C%5D%5Cs%5C%3F%28%5Cn%7C%24%29%7B1%7D
   text = text.replace(
-    /(^|\n){1}([\s]){0,}\[\-\s\-\]\s\?(\n|$){1}/g,
+    /(^|\n){1}([\s]){0,}\[-\s-\]\s\?(\n|$){1}/g,
     '$1<gap reason="lost" extent="unknown" unit="line"/>'
   )
 
   // [--] //
-  const lostCharactersRegExp = /([^\[]){0,1}\[([\-]+)\]([^\]]){0,1}/
+  // visual explanation:
+  // https://regexper.com/#%28%5B%5E%5B%5D%29%5C%5B%28%5B-%5D%2B%29%5C%5D%28%5B%5E%5C%5D%5D%29
+  const lostCharactersRegExp = /([^[])\[([-]+)\]([^\]])/
 
   while (text.match(lostCharactersRegExp)) {
     text = text.replace(
@@ -109,8 +128,10 @@ function convertLeidenToEpidoc (text) {
     )
   }
 
-  // [. .] //
-  const lostRegExp = /\[([\.\s]+)\]/
+  // [..] //
+  // visual explanation:
+  // https://regexper.com/#%5C%5B%28%5B.%5D%2B%29%5C%5D
+  const lostRegExp = /\[([.]+)\]/
 
   while (text.match(lostRegExp)) {
     // Brackets are not counted!
@@ -126,12 +147,16 @@ function convertLeidenToEpidoc (text) {
   text = text.replace(/\(!\)/g, '<note>!</note>')
 
   // (scil. exemplum) //
+  // visual explanation:
+  // https://regexper.com/#%5C%28scil%5C.%5Cs%28%28%3F%3A%5Ba-z%5D%7Cs%29%2B%29%5C%29
   text = text.replace(
-    RegExp('\\(scil. ((?:[' + unicodeBlocks + ']|s)+)\\)', 'g'),
+    RegExp('\\(scil\\.\\s((?:[' + unicodeBlocks + ']|s)+)\\)', 'g'),
     '<supplied reason="subaudible">$1</supplied>'
   )
 
   // exemplum(- -) //
+  // visual explanation:
+  // https://regexper.com/#%28%5CS%2B%29%5C%28%28-%5Cs*%29%2B%5C%29
   text = text.replace(/(\S+)\((-\s*)+\)/g, '<abbr>$1</abbr>')
 
   // (- -) //
@@ -279,7 +304,7 @@ function convertLeidenToEpidoc (text) {
 // 6.  [c.2]
 // 7.  [-]
 // 8.  [--]
-// 9.  [. .]
+// 9.  [..]
 // 10. (!)
 // 11. (scil. exemplum)
 // 12. exemplum(- -)
@@ -300,9 +325,11 @@ function convertLeidenToEpidoc (text) {
 // 27. ++
 // 28. ...
 
-// Paste in the 'Inscription Text' textarea without the comments:
+// Paste in the 'Inscription Text' textarea
+// without the comment mark and with nothing else on the line :
 // [- -]
 // [- -] ?
 
-// Paste in the 'Inscription Text' textarea and add a new line bellow:
+// Paste in the 'Inscription Text' textarea
+// without the comment mark and add a new line bellow:
 // exempl-