Add template funcs countwords and countrunes

This commit is contained in:
digitalcraftsman 2015-09-20 18:15:45 +02:00 committed by Steve Francia
parent 2e92f36890
commit dfa34afd86
2 changed files with 60 additions and 0 deletions

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@ -525,6 +525,26 @@ Converts all characters in string to uppercase.
e.g. `{{upper "BatMan"}}` → "BATMAN"
### countwords
`countwords` tries to convert the passed content to a string and counts each word
in it. The template functions works similar to [.WordCount]({{< relref "templates/variables.md#page-variables" >}}).
```html
{{ "Hugo is a static site generator." | countwords }}
<!-- outputs a content length of 6 words. -->
```
### countrunes
Alternatively to counting all words , `countrunes` determines the number of runes in the content and excludes any whitespace. This can become useful if you have to deal with
CJK-like languages.
```html
{{ "Hello, 世界" | countrunes }}
<!-- outputs a content length of 8 runes. -->
```
## URLs

View file

@ -26,6 +26,7 @@ import (
"strconv"
"strings"
"time"
"unicode/utf8"
"bitbucket.org/pkg/inflect"
@ -1385,6 +1386,43 @@ func Base64Encode(content interface{}) (string, error) {
return base64.StdEncoding.EncodeToString([]byte(conv)), nil
}
func CountWords(content interface{}) (int, error) {
conv, err := cast.ToStringE(content)
if err != nil {
return 0, errors.New("Failed to convert content to string: " + err.Error())
}
counter := 0
for _, word := range strings.Fields(helpers.StripHTML(conv)) {
runeCount := utf8.RuneCountInString(word)
if len(word) == runeCount {
counter++
} else {
counter += runeCount
}
}
return counter, nil
}
func CountRunes(content interface{}) (int, error) {
conv, err := cast.ToStringE(content)
if err != nil {
return 0, errors.New("Failed to convert content to string: " + err.Error())
}
counter := 0
for _, r := range helpers.StripHTML(conv) {
if !helpers.IsWhitespace(r) {
counter++
}
}
return counter, nil
}
func init() {
funcMap = template.FuncMap{
"urlize": helpers.URLize,
@ -1444,6 +1482,8 @@ func init() {
"getenv": func(varName string) string { return os.Getenv(varName) },
"base64Decode": Base64Decode,
"base64Encode": Base64Encode,
"countwords": CountWords,
"countrunes": CountRunes,
"pluralize": func(in interface{}) (string, error) {
word, err := cast.ToStringE(in)
if err != nil {