From 819ab10281c9bd6c000364c3a243959edd18abf7 Mon Sep 17 00:00:00 2001
From: Timotej Lazar <timotej.lazar@araneo.org>
Date: Thu, 15 Jan 2015 12:10:22 +0100
Subject: Move pymonkey stuff to monkey/

Importing pymonkey into webmonkey, let's see how this works.
---
 prolog/engine.py | 135 -------------------------------------------------------
 1 file changed, 135 deletions(-)
 delete mode 100644 prolog/engine.py

(limited to 'prolog/engine.py')

diff --git a/prolog/engine.py b/prolog/engine.py
deleted file mode 100644
index dff577c..0000000
--- a/prolog/engine.py
+++ /dev/null
@@ -1,135 +0,0 @@
-#!/usr/bin/python3
-
-import http.client
-import json
-import re
-import urllib
-
-address, port = 'localhost', 3030
-
-class PrologEngine(object):
-    def __init__(self, address=address, port=port, code='', destroy=False, id=None):
-        self.conn = http.client.HTTPConnection(address, port, timeout=10)
-
-        # If existing engine ID is given, use it.
-        if id:
-            self.id = id
-            return
-
-        # Otherwise, create a new engine.
-        hdrs = {'Content-Type': 'application/json;charset=utf-8'}
-        opts = json.dumps({'destroy': destroy, 'src_text': code, 'format': 'json-s'})
-        reply, outputs = self.request('POST', '/pengine/create', body=opts, headers=hdrs)
-
-        failed = (reply['event'] != 'create')
-        warnings = []
-        errors = []
-        for output in outputs:
-            print(output)
-            message = PrologEngine.parse_prolog_output(output)
-            if output['message'] == 'warning':
-                warnings.append(message)
-            elif output['message'] == 'error':
-                failed = True
-                errors.append(message)
-
-        if failed:
-            raise Exception('\n'.join(errors))
-
-        self.id = reply['id']
-
-    def send(self, event):
-        params = urllib.parse.urlencode({
-            'id': self.id,
-            'event': event,
-            'format': 'json-s'})
-        reply, outputs = self.request('GET', '/pengine/send?' + params)
-        return reply
-
-    def ask(self, query):
-        event = 'ask(({}),[])'.format(query)
-        reply = self.send(event)
-        return reply
-
-    def next(self, n=1):
-        event = 'next({})'.format(n)
-        reply = self.send(event)
-        return reply
-
-    def stop(self):
-        return self.send('stop')
-
-    def destroy(self):
-        reply = self.send('destroy')
-        self.id = None
-        self.conn.close()
-        self.conn = None
-
-    # Return the main reply and possible output replies.
-    def request(self, method, path, body=None, headers={}):
-        self.conn.request(method, path, body, headers)
-        outputs = []
-        while True:
-            response = self.conn.getresponse()
-            if response.status != http.client.OK:
-                raise Exception('server returned {}'.format(response.status))
-            reply = json.loads(response.read().decode('utf-8'))
-            self.id = reply['id']
-            if reply['event'] == 'output':
-                outputs.append(reply)
-                params = urllib.parse.urlencode({
-                    'id': self.id,
-                    'format': 'json-s'})
-                self.conn.request('GET', '/pengine/pull_response?' + params)
-            else:
-                return reply, outputs
-
-    # Check if output is an error message and return a prettified version of it.
-    def parse_prolog_output(output):
-        match = re.match(r'.*<pre class="[^"]*">(.*)</pre>.*',
-                         output['data'], flags=re.DOTALL)
-        data = match.group(1).strip()
-        message = ''
-        if output['message'] == 'error':
-            if 'location' in output:
-                loc = output['location']
-                message += 'near line ' + str(loc['line'])
-                if 'ch' in loc:
-                    message += ', character ' + str(loc['ch'])
-                message += ': '
-
-            if output.get('code') == 'syntax_error':
-                match = re.match(r'^.*Syntax error: (.*)$', data, flags=re.DOTALL)
-                message += match.group(1)
-            elif output.get('code') == 'permission_error':
-                match = re.match(r'^.*(No permission [^\n]*)', data, flags=re.DOTALL)
-                message += match.group(1)
-            elif output.get('code') == 'type_error':
-                match = re.match(r'^.*(Type error: [^\n]*)', data, flags=re.DOTALL)
-                message += match.group(1)
-            else:
-                message += data
-
-        # Replace anonymous variable names with _.
-        message = re.sub(r'_G[0-9]*', '_', message)
-        return message
-
-def test(name, code):
-    engine = PrologEngine(code=code)
-    reply = engine.ask("run_tests({}, '{}', Results)".format(name, engine.id))
-    engine.destroy()
-
-    if reply['event'] != 'success':
-        raise Exception('testing procedure failed')
-
-    results = re.findall(r'(?:success|failure)\([^)]*\)', reply['data'][0]['Results'])
-    n_total = len(results)
-    n_passed = len([r for r in results if r.startswith('success')])
-    return (n_passed, n_total)
-
-# Basic sanity check.
-if __name__ == '__main__':
-    engine = PrologEngine(code='dup([],[]). dup([H|T],[H,H|TT]) :- dup(T,TT).')
-    print('engine id is ' + engine.id)
-    print(engine.ask("run_tests({},'{}',Result)".format('dup/2', engine.id)))
-    engine.destroy()
-- 
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