zenekindarl

https://github.com/KeenS/zenekindarl.git


    git clone 'https://github.com/KeenS/zenekindarl.git'
      

      

(ql:quickload :zenekindarl)

★19

Zenekindarl

Expected to be a fast, flexible, extensible, low memory usage, async, concurrent template engine.

Usage

Like this

(render "Hello {{var name}}!!"
        :name "κeen")

(let ((renderer (compile-template-string :stream "Hello {{var name}}!!")))
  (funcall renderer *standard-output* :name "κeen"))

For more information, see docstring

Instant Benchmark

Zenekindarl perform x16 as fast as a template engine in Python in the following instant benchmark.

Benchmark

Template engines | Time[sec] ———————|———- Zenekindarl, SBCL 1.1.8 | 1.365 Jinja2, Python 2.7.5 | 24.07

The benchmark code for Zenekindarl:

> (time
   (with-open-file (out #P"~/Desktop/out" :direction :output :if-exists :supersede)
     (let ((fun (zenekindarl:compile-template-string :stream "Hello {{var name}}!!")))
       (loop repeat 1000000
          do (funcall fun out :name "κeen")))))
Evaluation took:
1.625 seconds of real time
1.364707 seconds of total run time (1.302198 user, 0.062509 system)
[ Run times consist of 0.042 seconds GC time, and 1.323 seconds non-GC time. ]
84.00% CPU
1 form interpreted
3 lambdas converted
3,265,218,807 processor cycles
528,706,464 bytes consed

The benchmark code for a template engine in Python:

$ cat te.py
from jinja2 import Template

template = Template( u'Hello {{ name }}!!' )

f = open( 'out', 'w' )
for i in range( 1000000 ):
  f.write( template.render( name=u'κeen' ).encode( 'utf-8' ) )

$ time python te.py
real    0m25.612s
user    0m24.069s
sys     0m0.190s

Syntax

Variable

variables will be HTML escaped

{{var foo}}

Repeat

{{repeat 10}}hello{{endrepeat}}

{{repeat n as i}}<li>{{var i}}th item</li>{{endrepeat}}

Loop

<ol>
  {{loop items as item}}
  <li>{{var item}}</li>
  {{endloop}}
</ol>

If

{{if new-p}}New{{else}}Old{{endif}}

Insert

See code below
<code><pre>
{{insert "snippet.lisp"}}
</pre></code>

Include

<nav>
{{incude "sidebar.tmpl"}}
</nav>

Author

κeen