From 7327707851cb0cc82001781571c2d7b6fedf7ffa Mon Sep 17 00:00:00 2001
From: Rohit Chakraborty <rohit.chakraborty@oracle.com>
Date: Mon, 20 Apr 2020 19:08:31 +0530
Subject: [PATCH] Fixes issue #144 - Ignore Case on Search Add an optional
 boolean argument for the function searchMatch. If the argument is true, then
 only the search will be case-sensitive. By default if no argument is passed
 during the function call, the argument will be set to false.

---
 README.md         | 6 +++---
 src/flamegraph.js | 8 ++++++--
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 581a126..cffa61d 100644
--- a/README.md
+++ b/README.md
@@ -306,11 +306,11 @@ If called with no arguments, `setColorMapper` will reset the color hash function
 
 <a name="setSearchMatch" href="#setSearchMatch">#</a> flamegraph.<b>setSearchMatch</b>(<i>[function]</i>)
 
-Replaces the built-in node search match function. Function takes two arguments,
-the node data structure and the search term. It must return a boolean. Example:
+Replaces the built-in node search match function. Function takes three arguments,
+the node data structure, the search term and an optional boolean argument for case-sensitive search. If the third argument is not provided, the search will not be case-sensitive. It must return a boolean. Example:
 
 ```js
-flamegraph.setSearchMatch(function(d, term) {
+flamegraph.setSearchMatch(function(d, term, true) {
   // Non-regex implementation of the search function
   return d.data.name.indexOf(term) != 0;
 })
diff --git a/src/flamegraph.js b/src/flamegraph.js
index 9000fb3..3de198e 100644
--- a/src/flamegraph.js
+++ b/src/flamegraph.js
@@ -63,12 +63,16 @@ export default function () {
     }
     var originalSearchHandler = searchHandler
 
-    let searchMatch = (d, term) => {
+    let searchMatch = (d, term, caseSensitive = false) => {
         if (!term) {
             return false
         }
+        let label = getName(d)
+        if (!caseSensitive) {
+            term = term.toLowerCase()
+            label = label.toLowerCase()
+        }
         const re = new RegExp(term)
-        const label = getName(d)
         return typeof label !== 'undefined' && label && label.match(re)
     }
     const originalSearchMatch = searchMatch