def html(self, renderer, settings):
"""
Call the right layout function from the renderer...
"""
renderer.settings = settings or {}
html, _ = '', copy(renderer.settings)
_ = self.control_character
content = settings.replace(self.content)
if _ in Config.nulls:
html = ''
elif _ in Config.setters:
settings.read_settings_block(content)
elif _ in Config.subheads:
html = subhead_block(content, settings)
elif _ in Config.quotes:
html = quote_block(content, settings)
elif _ in Config.notes:
html = note_block(content, settings)
elif _ in Config.caption:
html = caption_block(content, settings)
elif _ in Config.aligns:
html = align_block(content, settings)
elif _ in Config.lists:
html = list_block(content, settings)
elif _ in Config.tables:
html = table_block(content, settings)
elif _ in Config.glosses:
html = gloss_block(content, settings)
else:
html = alert('Unrecognized control character: %s')
return (html, settings)
def html(self, renderer):
"""
Get SVG for DOT content, embed in HTML.
"""
if len(self.options) < 1:
self.options = [self._guess_format(self.text)]
if len(self.options) > 1:
return alert(self.syntax(renderer))
dot_format = self.options.pop()
if dot_format == '':
dot_format = self._guess_format(self.text)
if dot_format not in self.acceptable_formats:
return alert(self.syntax(renderer))
pattern = "<div classs=\"svg-wrapper\">%s</div>"
return pattern % self._generate_svg(dot_format, self.text)
def _generate_svg(self, dot_format, dot_string):
"""
Perform the DOT system call, trimming first 6 lines; graphviz MUST be
installed; see requirements_apt.txt; ONLY tested on *NIX.
"""
command = [
'dot', '-K', dot_format, '-T'
'svg', '-Nfontname=Schoolbook', '-Nfontsize=11'
]
file_in = dot_string.encode('utf-8')
file_out = subprocess.run(command,
stdout=subprocess.PIPE,
input=file_in)
result = file_out.stdout.decode('utf-8')
parts = result.split('<svg', 1)
if len(parts) == 2:
img_tag = "<img src='data:image/svg+xml;utf8,<svg%s' />"
html = img_tag % parts[1]
return html
return alert("Error generating SVG.")
def subhead_line(part):
char, text = part
if char == '@':
return tag('p', text, 'subhead')
else:
return alert(content)
def note_line(part):
char, text = part
if char == '"':
return tag('p', text, 'note')
else:
return alert(content)