templatehelper

A Go Library provides helper functions for template package.

Installation

go get -u github.com/northbright/templatehelper

Documentation

• https://pkg.go.dev/github.com/northbright/templatehelper

Usage

Parse All Template Files in a Directory Recursively

Use ParseDir to parse all files in a directory.

It returns a template.Template slice and each template name is the relative path(with "dir" argument as prefix") of the template file. So the slice may contains multiple templates with same base file names. e.g. "dir/foo.tmpl", "dir/a/foo.tmpl".

package main

import (
        "fmt"

        "github.com/northbright/templatehelper"
)

func main() {
        dir := "templates/markdown"
        tmpls, err := templatehelper.ParseDir(dir, ".md")
        if err != nil {
                fmt.Printf("ParseDir() error: %v\n", err)
        }

        // List the parsed temlates.
        fmt.Printf("Parsed templates:\n")
        for _, tmpl := range tmpls {
                fmt.Printf("%v\n", strings.ReplaceAll(tmpl.Name(), string(os.PathSeparator), ">"))
        }

        // Output:
        //Parsed templates:
        //templates>markdown>chapters>00-about.md
        //templates>markdown>chapters>01-installation.md
        //templates>markdown>chapters>02-usage.md
        //templates>markdown>title.md
}

Security

templatehelper uses text/template but not html/template to make it possible to output raw HTML / JS / CSS code.

To secure HTML output, you may need to sanitize the input before execute the templates(e.g. using bluemonday).