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tpl/strings: Create strings.Diff template function

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Closes #12330
This commit is contained in:
Joe Mooring
2024-04-01 19:26:15 -07:00
committed by Bjørn Erik Pedersen
parent 983b8d537c
commit 6624979e1b
2 changed files with 34 additions and 2 deletions
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10
tpl/strings/strings.go
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@@ -27,6 +27,7 @@ import (
"github.com/gohugoio/hugo/deps"
"github.com/gohugoio/hugo/helpers"
"github.com/gohugoio/hugo/tpl"
"github.com/rogpeppe/go-internal/diff"
"github.com/spf13/cast"
)
@@ -172,6 +173,15 @@ func (ns *Namespace) ContainsNonSpace(s any) bool {
return false
}
// Diff returns an anchored diff of the two texts old and new in the “unified
// diff” format. If old and new are identical, Diff returns an empty string.
func (ns *Namespace) Diff(oldname string, old any, newname string, new any) string {
oldb := []byte(cast.ToString(old))
newb := []byte(cast.ToString(new))
return string(diff.Diff(oldname, oldb, newname, newb))
}
// HasPrefix tests whether the input s begins with prefix.
func (ns *Namespace) HasPrefix(s, prefix any) (bool, error) {
ss, err := cast.ToStringE(s)