The easiest way to install is to use OPAM. Install Opam, then, as a regular user, fetch and install an OCaml version and install Xtmpl. The whole can be done with the following opam commands:

$ opam init --comp=4.12.0
$ opam update
$ opam install xtmpl xtmpl_ppx xtmpl_js

To build Xtmpl, you will need:

• OCaml >= 4.12.0,
• Uutf >= 1.0.0,
• Sedlex >=2.3,
• Ppxlib >= 0.23.0,
• Js_of_ocaml >= 3.9.0,
• OCaml-re >= 1.10.3.
• OCaml-iri >= 0.6.0.

Get the sources from git repository:

$ git clone https://framagit.org/zoggy/xtmpl.git

Or pick one of the releases:

• 0.19.0 [November 25, 2021]
  • use dune to build and install;
  • modules renamed, with namespace Xtmpl and submodules Rewrite, Xml, ...;
  • packages renamed: xtmpl.ppx -> xtmpl_ppx, xtmpl.js -> xtmpl_js;
  • add ignore_unclosed to parse_param to authorize more parsing with tags not closed (default is false);
  • names in parse_param.self_closing are now lowercase_ascii'ed before comparison.
• 0.18.0 [May 10, 2021]
  • upgrade to OCaml 4.12.0;
  • reference entities to unescape when parsing can be specified in the ?param parameter. HTML entities are available with Xtmpl_xml.html_entities;
  • functions reading xml take a set of unqualified tag names considered as selfclosing; this is useful to parse HTML.
• 0.17.0 [July 4, 2018]
  • use js_of_ocaml.ppx instead of camlp4 extension
  • use -g flag everywhere
  • environments now handle and resolve namespaces (except default namespaces)
  • depend on ocaml-iri.
• 0.16.0 [November 30, 2016]
  • Use Uutf 1.0.0.
• 0.15.0 [October 26, 2016]
  • use OCaml-re library rather than Str (in Xtmpl_rewrite) and Jsoo's Regexp (in Xtmpl_js) to simplify code
  • Xtmpl_js.dom_of_html: add optional ?doc parameter to specify the root document (default is Dom_html.document)
  • Fix generated types from templates
• 0.14.0 [August 17, 2016]
  • fix: remove special attributes when converting Xtmpl_rewrite.tree to Xtmpl_xml.tree,
  • upgrade to ocaml 4.03.0 + replace deprecated stdlib functions.
• 0.13.0 [November 24, 2015]
  • include its own XML parser, keeping locations (do not depend on Xmlm any more but now require sedlex and uutf packages),
  • big interface change (with modules Xtmpl.Xml, Xtmpl.Rewrite, ...),
  • new package xtmpl.ppx (ppx instruction for ocamlfind not included in xtmpl package any more),
  • no more use of of main_ tag.
• 0.12 [March 30, 2015]
  • fix Xtmpl_js.dom_of_xtml to unescape xml in attributes, using Regexp module of Js_of_ocaml.
• 0.11 [March 5, 2015]
  • add ppx_xtmpl: this preprocessor creates functions from template files or strings, with the parameters described in the template. Usage:

    let doc = [%xtmpl "file.xml"]
    let doc = [%xtmpl.string {| <div>...</div> |} ]
    

  • some functions renamed (deprecating original ones functions),
  • add Xtmpl.node and Xtmpl.cdata,
  • new Xtmpl.Xhtml module, with convenient functions to create Xhtml trees,
  • new Xtmpl_js module in a new package xtmpl.js.

$ ./configure && make && make install