From 138887b6e0e938b1c5afbfe1ca82c3d387162d25 Mon Sep 17 00:00:00 2001
From: pranavbabu <54139019+pranavbabu@users.noreply.github.com>
Date: Sat, 19 Jul 2025 13:43:22 +0200
Subject: [PATCH 1/4] Cache currency symbol regex to improve parse performance

---
 lib/monetize/parser.rb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/monetize/parser.rb b/lib/monetize/parser.rb
index 8d88c09a6..a62df04ad 100644
--- a/lib/monetize/parser.rb
+++ b/lib/monetize/parser.rb
@@ -188,8 +188,13 @@ def split_major_minor(num, delimiter)
       [major, minor || '00']
     end
 
+    CURRENCY_SYMBOL_REGEX = begin
+      regex_safe_symbols = CURRENCY_SYMBOLS.keys.map { |key| Regexp.escape(key) }.join('|')
+      Regexp.new("(?<![A-Z])(#{regex_safe_symbols})(?![A-Z])", Regexp::IGNORECASE)
+    end.freeze
+    
     def currency_symbol_regex
-      /(?<![A-Z])(#{regex_safe_symbols})(?![A-Z])/i
+      CURRENCY_SYMBOL_REGEX
     end
   end
 end

From 97072c2bd5ff88d3aaf6637d714184058da33e17 Mon Sep 17 00:00:00 2001
From: pranavbabu <54139019+pranavbabu@users.noreply.github.com>
Date: Sat, 19 Jul 2025 13:46:03 +0200
Subject: [PATCH 2/4] Fix typo

---
 lib/monetize/parser.rb | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/monetize/parser.rb b/lib/monetize/parser.rb
index a62df04ad..b699b1975 100644
--- a/lib/monetize/parser.rb
+++ b/lib/monetize/parser.rb
@@ -189,7 +189,6 @@ def split_major_minor(num, delimiter)
     end
 
     CURRENCY_SYMBOL_REGEX = begin
-      regex_safe_symbols = CURRENCY_SYMBOLS.keys.map { |key| Regexp.escape(key) }.join('|')
       Regexp.new("(?<![A-Z])(#{regex_safe_symbols})(?![A-Z])", Regexp::IGNORECASE)
     end.freeze
     

From 2f8452505775e33d584043e44ea08251539c3e5d Mon Sep 17 00:00:00 2001
From: pranavbabu <54139019+pranavbabu@users.noreply.github.com>
Date: Wed, 23 Jul 2025 12:59:34 +0200
Subject: [PATCH 3/4] Update lib/monetize/parser.rb

Co-authored-by: Sunny Ripert <sunny@sunfox.org>
---
 lib/monetize/parser.rb | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/monetize/parser.rb b/lib/monetize/parser.rb
index b699b1975..a4919d8db 100644
--- a/lib/monetize/parser.rb
+++ b/lib/monetize/parser.rb
@@ -188,9 +188,7 @@ def split_major_minor(num, delimiter)
       [major, minor || '00']
     end
 
-    CURRENCY_SYMBOL_REGEX = begin
-      Regexp.new("(?<![A-Z])(#{regex_safe_symbols})(?![A-Z])", Regexp::IGNORECASE)
-    end.freeze
+    CURRENCY_SYMBOL_REGEX = /(?<![A-Z])(#{regex_safe_symbols})(?![A-Z])/i
     
     def currency_symbol_regex
       CURRENCY_SYMBOL_REGEX

From aaaea27ed48a0fcd40d3eebd3da3181467b78daf Mon Sep 17 00:00:00 2001
From: pranavbabu <54139019+pranavbabu@users.noreply.github.com>
Date: Wed, 23 Jul 2025 18:13:47 +0200
Subject: [PATCH 4/4] Use constant directly and generate it on top of the file

---
 lib/monetize/parser.rb | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/lib/monetize/parser.rb b/lib/monetize/parser.rb
index a4919d8db..c83fd3e3b 100644
--- a/lib/monetize/parser.rb
+++ b/lib/monetize/parser.rb
@@ -30,7 +30,8 @@ class Parser
       'NT$'=> 'TWD',
       '₱'  => 'PHP',
     }
-
+    
+    CURRENCY_SYMBOL_REGEX = /(?<![A-Z])(#{CURRENCY_SYMBOLS.keys.map { |key| Regexp.escape(key) }.join('|')})(?![A-Z])/i
     MULTIPLIER_SUFFIXES = { 'K' => 3, 'M' => 6, 'B' => 9, 'T' => 12 }
     MULTIPLIER_SUFFIXES.default = 0
     MULTIPLIER_REGEXP = Regexp.new(format('^(.*?\d)(%s)\b([^\d]*)$', MULTIPLIER_SUFFIXES.keys.join('|')), 'i')
@@ -100,7 +101,7 @@ def apply_sign(negative, amount)
     end
 
     def compute_currency
-      match = input.match(currency_symbol_regex)
+      match = input.match(CURRENCY_SYMBOL_REGEX)
       CURRENCY_SYMBOLS[match.to_s] if match
     end
 
@@ -179,19 +180,9 @@ def extract_sign(input)
       result
     end
 
-    def regex_safe_symbols
-      CURRENCY_SYMBOLS.keys.map { |key| Regexp.escape(key) }.join('|')
-    end
-
     def split_major_minor(num, delimiter)
       major, minor = num.split(delimiter)
       [major, minor || '00']
     end
-
-    CURRENCY_SYMBOL_REGEX = /(?<![A-Z])(#{regex_safe_symbols})(?![A-Z])/i
-    
-    def currency_symbol_regex
-      CURRENCY_SYMBOL_REGEX
-    end
   end
 end