From c689210b3c993aa29affb2503cbc11795c1dd349 Mon Sep 17 00:00:00 2001
From: Eugen Dueck <eugen@dueck.org>
Date: Fri, 15 Mar 2024 22:09:58 +0900
Subject: [PATCH] change from "first pattern wins" to "last pattern wins",
 because it feels more intuitive

---
 README.md   | 2 +-
 colorexp.go | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 4596b8f..e6cc3d3 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ something that is not easy to achieve with tools like `grep` and `less`.
 
 **Colorexp**
 - uses the Go regexp format, as documented [here](https://pkg.go.dev/regexp/syntax).
-- supports overlapping matches (the color of the first matching pattern will be used)
+- supports overlapping matches (the color for the last pattern that matches will be used)
 
 # Usage
 ```
diff --git a/colorexp.go b/colorexp.go
index 977c14b..618feb9 100644
--- a/colorexp.go
+++ b/colorexp.go
@@ -8,7 +8,7 @@ import (
 	"regexp"
 )
 
-const version = "1.0.1"
+const version = "1.0.2"
 
 var foregroundColors = []string{
 	//"\033[30m", // Black
@@ -160,6 +160,7 @@ func main() {
 		os.Exit(1)
 	}
 
+	// Note that the order in regexps is the reverse of the original order, to implement the "last regexp wins" logic
 	var regexps []*regexp.Regexp
 	for _, regexString := range regexStrings {
 		if fixedStrings {
@@ -173,7 +174,8 @@ func main() {
 			_, _ = fmt.Printf("Invalid regular expression: %v\n", err)
 			os.Exit(1)
 		}
-		regexps = append(regexps, re)
+		// insert at the beginning of the slice, to revert the order
+		regexps = append([]*regexp.Regexp{re}, regexps...)
 	}
 
 	var colors []string