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##############################################################################
# Copyright (c) 2015 Huawei Technologies Co.,Ltd and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
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', 'space']
self_close = {'input', 'img', 'link', 'br'}
def space(n):
return ' ' * n
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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