stringexchange 0.1

no pyramid

from stringexchange import make_exchange, function_call_emitter

exchange = make_exchange(function_call_emitter)

template = """f(a, {}, b)""".format(exchange.subscribe("args"))
p = exchange.publisher("args")

p.publish("x")
p.publish("y\n")
p.publish("z")

output = exchange.emit(template)
assert output == "f(a, x, y, z, b)"

on pyramid

file structure

• onpyramid.py

• top.html

onpyramid.py

# -*- coding:utf-8 -*-
## onpyramid.py
from wsgiref.simple_server import make_server
from pyramid.config import Configurator
import os.path


def top_view(request):
    js = request.string_exchange.publisher("js")
    css = request.string_exchange.publisher("css")
    return {"css": css, "js": js}


if __name__ == '__main__':
    here = os.path.dirname(os.path.abspath(__file__))
    settings = {"mako.directories": here,
                "pyramid.reload_templates": True}
    config = Configurator(settings=settings)

    config.include("pyramid_mako")
    config.include("stringexchange")  # !!
    config.add_mako_renderer(".html")

    config.add_route('top', '/')
    config.add_view(top_view, route_name='top', renderer="top.html")

    app = config.make_wsgi_app()
    server = make_server('0.0.0.0', 8080, app)
    server.serve_forever()

top.html

## top.html
<html>
<head>
${request.string_exchange.subscribe("css", emit="newline", iterator="unique")}
</head>
<body>

<!-- foo widget -->
<% js.publish('<script src="base.js"></script>') %>
<% js.publish('<script src="foo.js"></script>') %>
<h1>foo</h1>
foo content

<!-- boo widget -->
<% js.publish('<script src="base.js"></script>') %>
<% js.publish('<script src="boo.js"></script>') %>
<% css.publish('<link href="widget.boo.css"></link>') %>
<h1>boo</h1>
<ul>
<li>boo0</li>
<li>boo1</li>
<li>boo2</li>
</ul>

${request.string_exchange.subscribe("js", "newline", iterator="unique")}
</body>
</html>

output

$ python demo/onpyramid.py &
$ curl http://localhost:8080
<html>
<head>
<link href="widget.boo.css"></link>
</head>
<body>

<!-- foo widget -->


<h1>foo</h1>
foo content

<!-- boo widget -->



<h1>boo</h1>
<ul>
<li>boo0</li>
<li>boo1</li>
<li>boo2</li>
</ul>

<script src="base.js"></script>
<script src="foo.js"></script>
<script src="boo.js"></script>
</body>
</html>