Merge pull request #1 from vgarvardt/master

Added striptags function

README.md

@@ -207,6 +207,7 @@ If a panic occurs inside a gtf function, the function will silently swallow the
 * [join](#join)
 * [slice](#slice)
 * [random](#random)
+* [striptags](#striptags)
 
 
 
@@ -675,6 +676,28 @@ This function also supports unicode strings.
 
 
 
+#### striptags
+
+Makes all possible efforts to strip all [X]HTML tags from given value.
+
+* supported value types : string
+
+This function also supports unicode strings.
+
+```
+{{ value | striptags }}
+```
+
+**Examples**
+
+1. If input is {{ "<strong>text</strong>" | striptags }}, the output will be "text".
+1. If input is {{ "<strong><em>안녕하세요</em></strong>" | striptags }}, the output will be "안녕하세요". (unicode)
+1. If input is {{ "<a href=\"http://example.com/\">text <strong>안녕하세요</strong></a>" | striptags }}, the output will be "text 안녕하세요".
+
+
+
+
+
 ## Goal
 The first goal is implementing all built-in template filters of Django & Jinja2.
 

gtf.go

@@ -7,10 +7,13 @@ import (
 	"math/rand"
 	"net/url"
 	"reflect"
+	"regexp"
 	"strings"
 	"time"
 )
 
+var striptagsRegexp = regexp.MustCompile("<[^>]*?>")
+
 // recovery will silently swallow all unexpected panics.
 func recovery() {
 	recover()
@@ -419,6 +422,9 @@ var GtfFuncMap = template.FuncMap{
 
 		return ""
 	},
+	"striptags": func(s string) string {
+		return strings.TrimSpace(striptagsRegexp.ReplaceAllString(s, ""))
+	},
 }
 
 // gtf.New is a wrapper function of template.New(http://golang.org/pkg/text/template/#New).

gtf_test.go

@@ -357,6 +357,15 @@ func TestGtfFuncMap(t *testing.T) {
 
 	ParseTest(&buffer, "{{ . | random }}", false)
 	AssertEqual(t, &buffer, "")
+
+	ParseTest(&buffer, "{{ . | striptags }}", "<strong>text</strong>")
+	AssertEqual(t, &buffer, "text")
+
+	ParseTest(&buffer, "{{ . | striptags }}", "<strong><em>안녕하세요</em></strong>")
+	AssertEqual(t, &buffer, "안녕하세요")
+
+	ParseTest(&buffer, "{{ . | striptags }}", "<a href=\"http://example.com/\">text <strong>안녕하세요</strong></a>")
+	AssertEqual(t, &buffer, "text 안녕하세요")
 }
 
 func TestInject(t *testing.T) {