Stemp is a simple templating program.

Stemp uses the golang's text/template and html/template under the hood and
designed with the UNIX philosophy in mind, which means it is designed to be
scriptable and you can easily pipe stuff to or from it to other programs.

Examples
========

NOTE: In order to keep the examples simple, the shell is used in this examples
is bash(1) because it supports "Process Substitution" (i.e. the <(...) stuff).

By default stemp uses the file extention to determine the file type, but in
cases where you don't have a file extention or in this case where we are passing
the vars using process substitution we have to implicitly specify the format
that were using. This is done using the '-f' or '--vars-format' option.

    $ echo "{{ .my_var }}" | stemp -f json - <(echo '{"my_var": "something"}')
    something

    $ echo "{{ .x | inc }}" | stemp -f json - <(echo 'x = 68')
    69

By default stemp writes the result to stdout, you can write the output to a file
by using the '-o' or '--output' options.

    $ echo "{{ range .xs }}{{ . }}{{ end }}" | stemp -f yaml -o out.txt - <(echo 'xs: ["a", "b", "c"]')
    $ cat out.txt
    abc

You can use the 'safeHtml' function to escape html tags in order to prevent code
injection.

    $ echo "{{ .unsafe_html | safeHtml }}" | stemp -f json - <(echo '{"unsafe_html": "<script>alert(1)</script>"}') -f json
    &lt;script&gt;alert(1)&lt;/script&gt;

Stemp Functions
===============

List of stemp function mappings and their respective types:

    inc :: (int) -> int
    dec :: (int) -> int
    add :: (int, int) -> int
    sub :: (int, int) -> int
    div :: (int, int) -> int
    mul :: (int, int) -> int
    mod :: (int, int) -> int

    sin          math.Sin
    cos          math.Cos
    tan          math.Tan
    abs          math.Abs
    floor        math.Floor
    ceil         math.Ceil

    join         strings.Join,
    trim         strings.TrimSpace,
    trimPrefix   strings.TrimPrefix,
    trimSuffix   strings.TrimSuffix,
    hasPrefix    strings.HasPrefix,
    hasSuffix    strings.HasSuffix,
    upper        strings.ToUpper,
    lower        strings.ToLower,
    title        strings.ToTitle,

    safeHtml     template.HTMLEscapeString,

Feel send a PR to extend this list.

License
=======

This project is licensed under the GPLv3 copyleft license.