From 323944585a7cf6183bf1bb6300ce82c3bd0ac4f8 Mon Sep 17 00:00:00 2001
From: Brendan Anderson <brendan_anderson@hcpss.org>
Date: Thu, 7 Feb 2019 13:39:58 -0500
Subject: [PATCH] add findreplace filter

---
 README.md        | 15 +++++++++++++++
 gtf.go           |  5 +++++
 gtf_test.go      |  3 +++
 gtf_text_test.go |  3 +++
 4 files changed, 26 insertions(+)

diff --git a/README.md b/README.md
index 355088f..d8f2b51 100644
--- a/README.md
+++ b/README.md
@@ -202,6 +202,7 @@ If a panic occurs inside a gtf function, the function will silently swallow the
 ### Index
 
 * [replace](#replace)
+* [findreplace](#findreplace)
 * [default](#default)
 * [length](#length)
 * [lower](#lower)
@@ -245,6 +246,20 @@ If value is "The Go Programming Language", the output will be "TheGoProgrammingL
 
 
 
+#### findreplace
+
+Replaces all instances of the first argument with the second.
+
+* supported value types : string
+* supported argument types : string
+
+```
+{{ value | findreplace " " "-" }}
+```
+If value is "The Go Programming Language", the output will be "The-Go-Programming-Language".
+
+
+
 #### default
 
 1. If the given string is ""(empty string), uses the given default argument.
diff --git a/gtf.go b/gtf.go
index e9ca2f3..f4c43b1 100644
--- a/gtf.go
+++ b/gtf.go
@@ -26,6 +26,11 @@ var GtfTextFuncMap = textTemplate.FuncMap{
 
 		return strings.Replace(s2, s1, "", -1)
 	},
+	"findreplace": func(s1 string, s2 string, s3 string) string {
+		defer recovery()
+
+		return strings.Replace(s3, s1, s2, -1)
+	},
 	"title": func(s string) string {
 		defer recovery()
 		return strings.Title(s)
diff --git a/gtf_test.go b/gtf_test.go
index 37370de..32a8601 100644
--- a/gtf_test.go
+++ b/gtf_test.go
@@ -43,6 +43,9 @@ func TestGtfFuncMap(t *testing.T) {
 	ParseTest(&buffer, "{{ \"The Go Programming Language\" | replace \" \" }}", "")
 	AssertEqual(t, &buffer, "TheGoProgrammingLanguage")
 
+	ParseTest(&buffer, "{{ \"The Go Programming Language\" | findreplace \" \" \"X\" }}", "")
+	AssertEqual(t, &buffer, "TheXGoXProgrammingXLanguage")
+
 	ParseTest(&buffer, "{{ \"the go programming language\" | title }}", "")
 	AssertEqual(t, &buffer, "The Go Programming Language")
 
diff --git a/gtf_text_test.go b/gtf_text_test.go
index 3afb396..4a48699 100644
--- a/gtf_text_test.go
+++ b/gtf_text_test.go
@@ -18,6 +18,9 @@ func TestTextTemplateGtfFuncMap(t *testing.T) {
 	TextTemplateParseTest(&buffer, "{{ \"The Go Programming Language\" | replace \" \" }}", "")
 	AssertEqual(t, &buffer, "TheGoProgrammingLanguage")
 
+	TextTemplateParseTest(&buffer, "{{ \"The Go Programming Language\" | findreplace \" \" \"X\" }}", "")
+	AssertEqual(t, &buffer, "TheXGoXProgrammingXLanguage")
+
 	TextTemplateParseTest(&buffer, "{{ \"The Go Programming Language\" | length }}", "")
 	AssertEqual(t, &buffer, "27")