From be0e4a22abcef260e31e33ea22a3b08ab3e958ab Mon Sep 17 00:00:00 2001
From: Dean Sofer <ProLoser@users.noreply.github.com>
Date: Wed, 25 Apr 2018 13:56:44 -0700
Subject: [PATCH 1/3] Added negative truncation to helper function

This allows you to grab a truncated portion of a string from the end.
---
 template/helpers.go | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/template/helpers.go b/template/helpers.go
index 3c7a371..bd59acd 100644
--- a/template/helpers.go
+++ b/template/helpers.go
@@ -100,13 +100,18 @@ func isFailure(conditional bool, options *raymond.Options) string {
 }
 
 func truncate(s string, len int) string {
-	if utf8.RuneCountInString(s) <= len {
+	if utf8.RuneCountInString(s) <= int(math.Abs(float64(len))) {
 		return s
 	}
 
 	runes := []rune(s)
 
-	return string(runes[:len])
+	if len < 0 {
+ 		len = -len
+		return string(runes[len:])
+	} else {
+		return string(runes[:len])
+	}
 }
 
 func urlencode(options *raymond.Options) string {

From ecbb4a10a52050ad25ac0384f6e149aa7cd0447f Mon Sep 17 00:00:00 2001
From: Don <don.j.olmstead@gmail.com>
Date: Fri, 18 Sep 2020 10:58:48 -0700
Subject: [PATCH 2/3] Add test for negative truncation

---
 template/helpers_test.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/template/helpers_test.go b/template/helpers_test.go
index 96d6e6e..b93339d 100644
--- a/template/helpers_test.go
+++ b/template/helpers_test.go
@@ -53,6 +53,22 @@ func TestTruncate(t *testing.T) {
 	}
 }
 
+func TestNegativeTruncate(t *testing.T) {
+	vals := map[string]string{
+		"foobarz": "rz",
+		"foöäüüu": "üu",
+		"üpsßßßk": "ßk",
+		"1234567": "67",
+		"!'§$%&/": "&/",
+	}
+
+	for input, want := range vals {
+		if got := truncate(input, -5); got != want {
+			t.Errorf("Want transform %s to %s, got %s", input, want, got)
+		}
+	}
+}
+
 func TestSince(t *testing.T) {
 	t.Skip()
 }

From 29099fe4a4491871e7c1bad80ff55564721ca8e3 Mon Sep 17 00:00:00 2001
From: Don <don.j.olmstead@gmail.com>
Date: Fri, 18 Sep 2020 11:00:31 -0700
Subject: [PATCH 3/3] Fix build and lints

---
 template/helpers.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/template/helpers.go b/template/helpers.go
index bd59acd..b4085b4 100644
--- a/template/helpers.go
+++ b/template/helpers.go
@@ -17,6 +17,7 @@ package template
 import (
 	"fmt"
 	"net/url"
+	"math"
 	"regexp"
 	"strings"
 	"time"
@@ -109,9 +110,9 @@ func truncate(s string, len int) string {
 	if len < 0 {
  		len = -len
 		return string(runes[len:])
-	} else {
-		return string(runes[:len])
 	}
+
+	return string(runes[:len])
 }
 
 func urlencode(options *raymond.Options) string {