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#!/usr/bin/python
# -*- coding: utf8 -*-
# author: wly
# date: 2015-09-25
# see license for license details
from sys import stdout, modules
doc_type = '<!DOCTYPE HTML>\n'
default_title = "Html Page"
charset = '<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />\n'
html4_tags = {'a', 'abbr', 'acronym', 'address', 'area', 'b', 'base', 'bdo', 'big',
'blockquote', 'body', 'br', 'button', 'caption', 'cite', 'code', 'col',
'colgroup', 'dd', 'del', 'div', 'dfn', 'dl', 'dt', 'em', 'fieldset',
'form', 'frame', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head',
'hr', 'html', 'i', 'iframe', 'img', 'input', 'ins', 'kbd',
'label', 'legend', 'li', 'link', 'map', 'menu', 'menuitem', 'meta',
'noframes', 'noscript', 'object', 'ol', 'optgroup', 'option', 'p',
'param', 'pre', 'q', 'samp', 'script', 'select', 'small', 'span', 'strong',
'style', 'sub', 'sup', 'table', 'tbody', 'td', 'textarea', 'tfoot', 'th',
'thead', 'title', 'tr', 'tt', 'ul', 'var'}
disused_tags = {'isindex', 'font', 'dir', 's', 'strike',
'u', 'center', 'basefont', 'applet', 'xmp'}
html5_tags = {'article', 'aside', 'audio', 'bdi', 'canvas', 'command', 'datalist', 'details',
'dialog', 'embed', 'figcaption', 'figure', 'footer', 'header',
'keygen', 'mark', 'meter', 'nav', 'output', 'progress', 'rp', 'rt', 'ruby',
'section', 'source', 'summary', 'details', 'time', 'track', 'video', 'wbr'}
nl = '\n'
tags = html4_tags | disused_tags | html5_tags
__all__ = [x.title() for x in tags] + ['PyHtml']
self_close = {'input', 'img', 'link', 'br'}
class Tag(list):
tag_name = ''
def __init__(self, *args, **kwargs):
self.attributes = kwargs
if self.tag_name:
name = self.tag_name
self.is_seq = False
else:
name = 'sequence'
self.is_seq = True
self._id = kwargs.get('id', name)
for arg in args:
self.add_obj(arg)
def __iadd__(self, obj):
if isinstance(obj, Tag) and obj.is_seq:
for o in obj:
self.add_obj(o)
else:
self.add_obj(obj)
return self
def add_obj(self, obj):
if not isinstance(obj, Tag):
obj = str(obj)
_id = self.set_id(obj)
setattr(self, _id, obj)
self.append(obj)
def set_id(self, obj):
if isinstance(obj, Tag):
_id = obj._id
obj_lst = filter(lambda t: isinstance(
t, Tag) and t._id.startswith(_id), self)
else:
_id = 'content'
obj_lst = filter(lambda t: not isinstance(t, Tag), self)
length = len(obj_lst)
if obj_lst:
_id = '%s_%03i' % (_id, length)
if isinstance(obj, Tag):
obj._id = _id
return _id
def __add__(self, obj):
if self.tag_name:
return Tag(self, obj)
self.add_obj(obj)
return self
def __lshift__(self, obj):
if isinstance(obj, Tag):
self += obj
return obj
print "unknown obj: %s " % obj
return self
def render(self):
result = ''
if self.tag_name:
result += '<%s%s%s>' % (self.tag_name,
self._render_attr(), self._self_close() * ' /')
if not self._self_close():
isnl = True
for c in self:
if isinstance(c, Tag):
result += isnl * nl
isnl = False
result += c.render()
else:
result += c
if self.tag_name:
result += '</%s>' % self.tag_name
result += nl
return result
def _render_attr(self):
result = ''
for key, value in self.attributes.iteritems():
if key != 'txt' and key != 'open':
if key == 'cl':
key = 'class'
result += ' %s="%s"' % (key, value)
return result
def _self_close(self):
return self.tag_name in self_close
"""
def tag_factory(tag):
class F(Tag):
tag_name = tag
F.__name__ = tag.title()
return F
THIS = modules[__name__]
for t in tags:
setattr(THIS, t.title(), tag_factory(t))
"""
THIS = modules[__name__]
for t in tags:
obj = type(t.title(), (Tag, ), {'tag_name': t})
setattr(THIS, t.title(), obj)
def _render_style(style):
result = ''
for item in style:
result += item
result += '\n{\n'
values = style[item]
for key, value in values.iteritems():
result += " %s: %s;\n" % (key, value)
result += '}\n'
if result:
result = '\n' + result
return result
class PyHtml(Tag):
tag_name = 'html'
def __init__(self, title=default_title):
self._id = 'html'
self += Head()
self += Body()
self.attributes = dict(xmlns='http://www.w3.org/1999/xhtml', lang='en')
self.head += Title(title)
def __iadd__(self, obj):
if isinstance(obj, Head) or isinstance(obj, Body):
self.add_obj(obj)
elif isinstance(obj, Meta) or isinstance(obj, Link):
self.head += obj
else:
self.body += obj
_id = self.set_id(obj)
setattr(self, _id, obj)
return self
def add_js(self, *arg):
for f in arg:
self.head += Script(type='text/javascript', src=f)
def add_css(self, *arg):
for f in arg:
self.head += Link(rel='stylesheet', type='text/css', href=f)
def output(self, name=''):
if name:
fil = open(name, 'w')
else:
fil = stdout
fil.write(self.as_string())
fil.flush()
if name:
fil.close()
def as_string(self):
return doc_type + self.render()
def add_style(self, style):
self.head += Style(_render_style(style))
def add_table(self, data):
table = self << Table()
rows = len(data)
cols = len(zip(*data))
for i in range(rows):
tr = table << Tr()
tr << Th(data[i][0])
for j in range(1, cols):
tr << Td(data[i][j])
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