46 lines
958 B
Go
46 lines
958 B
Go
package interpolate
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import (
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"bytes"
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"text/template"
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)
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// Context is the context that an interpolation is done in. This defines
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// things such as available variables.
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type Context struct {
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// Data is the data for the template that is available
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Data interface{}
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// DisableEnv disables the env function
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DisableEnv bool
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}
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// I stands for "interpolation" and is the main interpolation struct
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// in order to render values.
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type I struct {
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Value string
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}
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// Render renders the interpolation with the given context.
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func (i *I) Render(ctx *Context) (string, error) {
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tpl, err := i.template(ctx)
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if err != nil {
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return "", err
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}
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var result bytes.Buffer
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var data interface{}
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if ctx != nil {
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data = ctx.Data
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}
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if err := tpl.Execute(&result, data); err != nil {
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return "", err
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}
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return result.String(), nil
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}
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func (i *I) template(ctx *Context) (*template.Template, error) {
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return template.New("root").Funcs(Funcs(ctx)).Parse(i.Value)
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}
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