# This file is part of NIT ( http://www.nitlanguage.org ).
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This is an example of a client of the frontend without command-line processing.
#
# It offers a simple nitcorn web server that offers a textarea and nitpick and nitlignt it.
module nitlight_as_a_service is example
import frontend
import htmlight
import nitcorn
import nitcorn::log
import template
import json::serialization_write
# Nitcorn service to highlight code
#
# It's a single stand-alone page that has to form to itself.
class HighlightAction
super Action
redef fun answer(http_request, turi)
do
var hl = new HtmlightVisitor
var page = new Template
# There is code? Process it
var code = http_request.post_args.get_or_null("code")
var hlcode = null
if code != null then hlcode = hl.highlightcode(code)
if http_request.post_args.get_or_null("json") == "true" and hlcode != null then
var response = new HttpResponse(200)
response.header["Content-Type"] = "text/json"
response.body = hlcode.to_json
return response
end
if http_request.post_args.get_or_null("ajax") == "true" and hlcode != null then
page.add hlcode.code_mirror_update
page.add """
document.getElementById("lightcode").innerHTML = "{{{hl.html.write_to_string.escape_to_c}}}";
nitmessage();
"""
var response = new HttpResponse(200)
response.header["Content-Type"] = "application/javascript"
response.body = page.write_to_string
return response
end
page.add """
{{{hl.head_content}}}
"""
# Add the form+textarea
page.add """
"""
if hlcode != null then
# Inject highlight
page.add "
"
page.add hl.html.write_to_string
page.add "
"
page.add "
"
# List messages
for m in hlcode.source.messages do
page.add "
{m.location.as(not null)}: {m.text}
"
end
page.add "
"
else
page.add "
"
end
page.add hl.foot_content
# Call codemirror
page.add """
"""
var response = new HttpResponse(200)
response.header["Content-Type"] = "text/html"
response.body = page.write_to_string
return response
end
end
var host = "localhost:8080"
if args.length > 0 then host = args.first
var vh = new VirtualHost(host)
vh.routes.add new Route("/", new HighlightAction)
var factory = new HttpFactory.and_libevent
factory.config.virtual_hosts.add vh
factory.run