html.py
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from snakes.compat import io
from snakes.lang.abcd.parser import ast, parse
import os, tempfile, re, codecs, collections
try :
from cgi import escape
except :
from html import escape
template_css = u"""/* ABCD source code */
.abcd { border:solid 1px #DDD; border-radius:5px; padding:5px 10px; margin:5px; background-color:#F4F4F4; overflow:auto; }
.abcd .comment { color:#888; }
.abcd .ident { color:#808; }
.abcd .string { color:#088; }
.abcd .kw { color:#800; font-weight:bold; }
.abcd .flow { color:#800; font-weight:bold; }
.abcd .buffer .decl { color:#080; font-weight:bold; }
.abcd .net .decl { color:#008; font-weight:bold; }
.abcd .instance .name { color:#008; }
.abcd .action .delim { font-weight:bold; }
.abcd .action .name { color:#080; }
.abcd .highlight { background-color:yellow; }
/* Petri net picture */
.petrinet { border:solid 1px #DDD; border-radius:5px; padding:5px 10px; margin:5px; background-color:#FFF; overflow:auto; clear:both; }
/* Objects tree */
.tree { border:solid 1px #DDD; border-radius:5px; padding:5px 10px; margin:5px; background-color:#F4F4F4; overflow:auto; font-family:monospace; }
.tree .kw { color:#800; font-weight:bold; }
.tree .buffer { color:#080; font-weight:bold; }
.tree .ident { color:#808; }
.tree .instance .name { color:#008; }
.tree .action .delim { font-weight:bold; }
.tree .action .name { color:#080; }
.tree .string { color:#088; }
.tree .highlight { background-color:yellow; }
"""
template_html = u'''<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>%(filename)s</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<style type="text/css">%(css)s</style>
%(headers)s
%(jscode)s
</head><body>
<h1><tt>%(filename)s</tt></h1>
%(abcd)s
%(tree)s
%(svg)s
</body></html>
'''
template_tree = '''<div class="tree">%(tree)s</div>'''
template_headers = '''<script src="http://code.jquery.com/jquery-1.11.0.min.js" type="text/javascript"></script>'''
template_jscode = '''<script type="text/javascript">
var nodeColor;
function abcdon () {
obj = jQuery(this);
if (obj.attr("class") == "node") {
node = obj.children().children().first();
nodeColor = node.attr("fill");
node.attr("fill", "yellow");
} else {
obj.addClass("highlight");
}
jQuery(obj.attr("data-abcd")).addClass("highlight");
};
function abcdoff () {
obj = jQuery(this);
if (obj.attr("class") == "node") {
node = obj.children().children().first();
node.attr("fill", nodeColor);
} else {
obj.removeClass("highlight");
}
jQuery(obj.attr("data-abcd")).removeClass("highlight");
};
function treeon () {
obj = jQuery(this);
if (obj.attr("class") != "node") {
obj.addClass("highlight");
}
jQuery(obj.attr("data-tree")).addClass("highlight");
};
function treeoff () {
obj = jQuery(this);
if (obj.attr("class") != "node") {
obj.removeClass("highlight");
}
jQuery(obj.attr("data-tree")).removeClass("highlight");
};
function neton () {
obj = jQuery(this);
jQuery(obj.attr("data-net")).each(function () {
node = jQuery(this).children().children().first();
nodeColor = node.attr("fill");
node.attr("fill", "yellow");
});
obj.addClass("highlight");
};
function netoff () {
obj = jQuery(this);
jQuery(obj.attr("data-net")).each(function () {
node = jQuery(this).children().children().first();
node.attr("fill", nodeColor);
});
obj.removeClass("highlight");
};
function setwidth () {
abcd = jQuery(".abcd");
tree = jQuery(".tree");
width = (jQuery(".petrinet").outerWidth(true) / 2) - 35;
console.log(width);
height = Math.max(abcd.height(), tree.height());
abcd.css({float: "left", width: width, height: height});
tree.css({float: "right", width: width, height: height});
}
jQuery(document).ready(function() {
jQuery("[data-abcd]").hover(abcdon, abcdoff);
jQuery("[data-tree]").hover(treeon, treeoff);
jQuery("[data-net]").hover(neton, netoff);
jQuery(".tree .instance, .tree .action").each(function () {
obj = jQuery(this);
obj.html(jQuery(obj.attr("data-abcd")).html());
});
setwidth();
jQuery(window).resize(setwidth);
});
</script>'''
class Span (object) :
def __init__ (self, cls=[], id=None, net=[], abcd=[], tree=[]) :
self.cls = set([cls]) if isinstance(cls, str) else set(cls)
self.id = id
self.net = set([net]) if isinstance(net, str) else set(net)
self.abcd = set([abcd]) if isinstance(abcd, str) else set(abcd)
self.tree = set([tree]) if isinstance(tree, str) else set(tree)
def copy (self, **attr) :
span = self.__class__(cls=self.cls, id=self.id, net=self.net,
abcd=self.abcd, tree=self.tree)
for k, v in attr.items() :
if isinstance(getattr(span, k), set) :
v = set(v)
setattr(span, k, v)
return span
def __bool__ (self) :
return self.__nonzero__()
def __nonzero__ (self) :
return bool(self.cls or self.id or self.net or self.abcd
or self.tree)
def span (self) :
attr = []
for src, dst in (("cls", "class"), ("id", "id"),
("net", "data-net"), ("abcd", "data-abcd"),
("tree", "data-tree")) :
val = getattr(self, src)
if not val :
continue
elif isinstance(val, str) :
attr.append("%s=%r" % (dst, val))
elif dst.startswith("data-") :
attr.append("%s=%r" % (dst, ", ".join("#" + v for v in val)))
else :
attr.append("%s=%r" % (dst, ", ".join(val)))
return "<span %s>" % " ".join(attr)
def __str__ (self) :
return self.span()
keywords = {"False", "True", "and", "as", "assert", "buffer", "const",
"else", "enum", "for", "from", "if", "import", "in", "is",
"lambda", "net", "not", "or", "symbol", "task", "typedef"}
class ABCD2HTML (ast.NodeVisitor) :
def __init__ (self, tree) :
self.tree = tree
self.x = "%%0%uX" % len("%x" % (tree.st.erow + 1))
self.st = {}
self.path = []
self.nets = {}
self.visit(tree)
def __getitem__ (self, id) :
cls = id.__class__.__name__
if cls in ("Place", "Transition") :
x, y, _, _ = id.label("srcloc")
c = "B" if cls == "Place" else "A"
id = self.newid(c, x, y)
elif isinstance(id, tuple) :
id = self.newid(*id)
if isinstance(self.st[id], Span) :
return self.st[id]
else :
return self.st[id].span
def newid (self, c, x, y) :
return "".join([c[0].upper(), self.x % x, "%X" % y])
def setspan (self, cls, node, **args) :
if isinstance(node, ast.AST) :
node = node.st
if cls in ("action", "buffer", "instance", "net") :
x, y = node.srow, node.scol
ident = self.newid(cls, x, y)
ident = args.pop("id", ident)
span = node.span = Span(cls=cls.lower(), id=ident, **args)
self.st[ident] = node
elif node is None :
span = Span(cls=cls.lower(), **args)
if "id" in args :
self.st[args["id"]] = span
else :
span = node.span = Span(cls=cls.lower(), **args)
if "id" in args :
self.st[args["id"]] = node
return span
def visit_AbcdBuffer (self, node) :
t = node.st
while t.symbol != "abcd_buffer" :
t = t[0]
self.setspan("decl", t[1])
self.setspan("buffer", node)
self.generic_visit(node)
def visit_AbcdNet (self, node) :
t = node.st
while t.symbol != "abcd_net" :
t = t[0]
self.setspan("decl", t[1])
self.setspan("body", node.body)
span = self.setspan("net", node)
self.setspan("proto", None, id="P" + span.id)
self.nets[".".join(self.path + [node.name])] = span.id
self.path.append(node.name)
self.generic_visit(node)
self.path.pop(-1)
def visit_AbcdInstance (self, node) :
t = node.st
while t.symbol != "abcd_instance" :
t = t[0]
self.setspan("name", t[0])
pid = "P" + self.nets[".".join(self.path + [node.net])]
span = self.setspan("instance", node, abcd=[pid])
self[pid].abcd.add(span.id)
self.generic_visit(node)
def visit_AbcdAction (self, node) :
t = node.st
while t[0].text != '[' :
t = t[0]
span = self.setspan("action", node)
self.setspan("delim", t[0], id="L" + span.id)
self.setspan("delim", t[-1], id="R" + span.id)
self.generic_visit(node)
def visit_AbcdFlowOp (self, node) :
t = node.st
while len(t) == 1 :
t = t[0]
while t[0].text == '(' :
t = t[1]
for op in t[1::2] :
self.setspan("flow", op)
self.generic_visit(node)
def visit_SimpleAccess (self, node) :
self.setspan("name", node.st[0])
self.setspan("access", node)
self.generic_visit(node)
def visit_FlushAccess (self, node) :
self.visit_SimpleAccess(node)
def visit_SwapAccess (self, node) :
self.visit_SimpleAccess(node)
def escape (self, text) :
return escape(text)
def build (self, st) :
# collect text skipped during parsing (blanks and comments)
output = io.StringIO()
if st.srow > self.row :
for line in st.text.lexer.lines[self.row-1:st.srow-1] :
output.write(line[self.col:])
self.col = 0
output.write(st.text.lexer.lines[st.srow-1][:st.scol])
elif st.scol > self.col :
output.write(st.text.lexer.lines[self.row-1][self.col:st.scol])
# insert skipped text with comments rendering
for line in output.getvalue().splitlines(True) :
if "#" in line :
left, right = line.split("#", 1)
self.output.write("%s<span class=%r>%s</span>"
% (self.escape(left),
"comment",
self.escape("#" + right)))
else :
self.output.write(self.escape(line))
# adjust current position in source code
self.row, self.col = st.srow, st.scol
# close span for net declaration
span = getattr(st, "span", Span())
if "body" in (c.lower() for c in span.cls) :
self.output.write("</span>")
# generate <span ...> if necessary
if span :
self.output.write(str(span))
# generate span for net declaration
if (span.id or "").startswith("N") :
self.output.write(str(self["P" + span.id]))
# render tree or its children
if len(st) :
for child in st :
# add span tags on special elements
if not hasattr(child, "span") :
if child.symbol == "NAME" :
if child.text in keywords :
self.setspan("kw", child)
else :
self.setspan("ident", child)
elif child.symbol == "STRING" :
self.setspan("string", child)
elif child.symbol == "COLON" :
self.setspan("kw", child)
self.build(child)
else :
if st.symbol not in ("DEDENT", "ENDMARKER") :
self.output.write(self.escape(st.text))
self.row, self.col = st.erow, st.ecol
# generate </span> if necessary
if span :
self.output.write("</span>")
def html (self) :
self.output = io.StringIO()
self.indent, self.row, self.col = False, 1, 0
self.build(self.tree.st)
return "<pre class='abcd'>%s</pre>" % self.output.getvalue()
def Tree () :
return collections.defaultdict(Tree)
class TreeInfo (object) :
def __init__ (self, span, name) :
self.span, self.name = span, name
def __hash__ (self) :
return hash(self.name)
def __eq__ (self, other) :
try :
return self.name == other.name
except :
return False
def __ne__ (self, other) :
return not self.__eq__(other)
def __iter__ (self) :
yield self.span
yield self.name
_svgclean = [(re.compile(r, re.I), s) for r, s in
[(r"<[?!][^>]*>\n*", ""),
(r"<title>[^<>]*</title>\n*", ""),
(r"<g [^<>]*></g>\n*", ""),
]]
class Net2HTML (object) :
def __init__ (self, net, gv, abcd) :
self.gv = gv
self.abcd = abcd
self.tree = Tree()
self.n2a = collections.defaultdict(set)
self.n2t = {}
snk = net.label("snakes")
self.count = collections.defaultdict(int)
for place in net.place() :
nid = gv.nodemap[place.name]
if place.status in (snk.entry, snk.internal, snk.exit) :
for char, trans in ([("R", net.transition(t))
for t in place.pre]
+ [("L", net.transition(t))
for t in place.post]) :
span = abcd[trans]
self.n2a[nid].add(char + span.id)
else :
self.addtree(0, "buffer", place)
for trans in net.transition() :
self.addtree(10, "action", trans)
def addtree (self, weight, kind, node) :
nid = self.gv.nodemap[node.name]
aid = self.abcd[node]
tid = aid.copy(id=("T%X" % self.count[aid.id]) + aid.id,
tree=[], abcd=[aid.id], net=[nid])
self.count[aid.id] += 1
aid.tree.add(tid.id)
aid.net.add(nid)
self.n2a[nid].add(aid.id)
self.n2t[nid] = tid.id
pos = self.tree
path = node.label("path")
try :
inst = node.label("instances")
except :
inst = [None] * len(path)
for name, (_, srow, scol, _, _) in zip(path, inst) :
a = self.abcd["I", srow, scol]
t = a.copy(id=("T%X" % self.count[a.id]) + a.id,
tree=[], abcd=[a.id], net=[])
self.count[a.id] += 1
a.tree.add(t.id)
pos = pos[((20, srow, scol), "instance", TreeInfo(t, name))]
prefix = sum(len(p) for p in path) + len(path)
srow, scol, _, _ = node.label("srcloc")
pos[((weight, srow, scol), kind, (node, node.name[prefix:]))] = tid
def _tree (self, tree, indent="") :
yield indent + "<ul>"
for (_, kind, data), child in sorted(tree.items()) :
if kind == "instance" :
yield indent + "<li>%s%s</span>" % tuple(data)
for item in self._tree(child, indent + " ") :
yield item
yield indent + "</li>"
else :
node, name = data
if kind == "buffer" :
content = ("<span class='kw'>buffer</span> "
"<span class='name'>%s</span> = "
"<span class='content'>%s</span>"
% (name, node.tokens))
yield indent + "<li>%s%s</span></li>" % (child, content)
elif kind == "action" :
content = name
yield (indent + "<li>%s%s</span><ul class='modes'>"
+ "</ul></li>") % (child, content)
else :
raise ValueError("unexpected data %r" % kind)
yield indent + "</ul>"
def html (self) :
return template_tree % {"tree" : "\n".join(self._tree(self.tree))}
def svg (self) :
# load SVG file
with tempfile.NamedTemporaryFile(suffix=".svg") as tmp :
self.gv.render(tmp.name)
with codecs.open(tmp.name, "r", "utf-8") as infile :
svg = infile.read()
for r, s in _svgclean :
svg = r.sub(s, svg)
for node, abcd in self.n2a.items() :
abcd = ", ".join("#" + t for t in abcd)
if node in self.n2t :
svg = svg.replace(' id="%s" ' % node,
' id="%s" data-abcd="%s" data-tree="#%s" '
% (node, abcd, self.n2t[node]))
else :
svg = svg.replace(' id="%s" ' % node,
' id="%s" data-abcd="%s" ' % (node, abcd))
return u"<div class='petrinet'>%s</div>" % svg
def build (abcd, node, net, gv, outfile, tpl=template_html, **args) :
abcd = ABCD2HTML(node)
pnet = Net2HTML(net, gv, abcd)
d = {"filename" : node.st.filename,
"css" : template_css,
"jscode" : template_jscode,
"headers" : template_headers,
"abcd" : abcd.html(),
"tree" : pnet.html(),
"svg" : pnet.svg()}
d.update(args)
if tpl is not None and outfile :
with codecs.open(outfile, "w", "utf-8") as out :
out.write(tpl % d)
return d