cl-json-template

2017-06-30

JSON Template for Common Lisp

Summary

An implementation of JSON Template in Common Lisp.

Implementation Features

  • No dependencies
  • Portable Common Lisp (tested on SBCL, Clozure CL, ECL, XCL, ABCL)
  • HTML and URI escaping through the use of formatters
  • Apache license

Missing Things

  • Literals (like {.space} and {.meta-left}/{.meta-right})
  • Multiple-argument formatters
  • Options (like changing the meta character or the default formatter)
  • Some kind of compilation for efficiency

Examples

JSON-TEMPLATE> (defparameter *tmpl* (parse-template-string "
<h1>{title|html}</h1>
{.section people}
<ul>
{.repeated section @}
  <li>{name} ({age} years)</li>
{.end}
</ul>
{.or}
<p>No one's registered.</p>
{.end}"))
*TMPL*
JSON-TEMPLATE> (expand-template *tmpl*
                                '(:title "<Registered People>"
                                  :people ((:name "Nathalie" :age 24)
                                           (:name "Heinrich" :age 28)
                                           (:name "Hans"     :age 25))))
"
<h1>&#60;Registered People&#62;</h1>
<ul>
  <li>Nathalie (24 years)</li>
  <li>Heinrich (28 years)</li>
  <li>Hans (25 years)</li>
</ul>
"
JSON-TEMPLATE> (expand-template *tmpl*
                                '(:title "<Registered People>"
                                  :people ()))
"
<h1>&#60;Registered People&#62;</h1>
<p>No one's registered.</p>
"
Author
Matthias Andreas Benkard
License
Apache License, version 2.0