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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only
package util
import (
"bytes"
"io"
"text/template"
)
type TemplateExpander struct {
data StringAnyMap
funcs template.FuncMap
name string
}
func NewTemplateExpander() *TemplateExpander {
return &TemplateExpander{
data: StringAnyMap{},
funcs: template.FuncMap{},
}
}
func (e *TemplateExpander) Name(name string) *TemplateExpander {
e.name = name
return e
}
func (e *TemplateExpander) Data(data StringAnyMap) *TemplateExpander {
e.data = data
return e
}
func (e *TemplateExpander) Funcs(funcs template.FuncMap) *TemplateExpander {
e.funcs = funcs
return e
}
func (e *TemplateExpander) RunString(templateString string) (string, error) {
return e.execTemplate(template.
New(e.name).
Funcs(e.funcs).
Parse(templateString))
}
func (e *TemplateExpander) RunFile(filePath string) (string, error) {
return e.execTemplate(template.
New(e.name).
Funcs(e.funcs).
ParseFiles(filePath))
}
func (e *TemplateExpander) execTemplate(
tmpl *template.Template,
err error,
) (string, error) {
if err != nil {
return "", err
}
var buffer bytes.Buffer
var io io.Writer = &buffer
err = tmpl.Execute(io, e.data)
if err != nil {
return "", err
}
return buffer.String(), nil
}
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