Telethon/telethon_generator/docswriter.py
Lonami Exo a5f5d6ef23 Minor doc updates, fixes and improvements
In particular, removed code which no longer worked, made light
theme easier on the eyes, added slight syntax highlightning,
and fixed search for exact matches.
2019-03-16 17:19:19 +01:00

297 lines
9.5 KiB
Python

import os
import re
class DocsWriter:
"""
Utility class used to write the HTML files used on the documentation.
"""
def __init__(self, root, filename, type_to_path):
"""
Initializes the writer to the specified output file,
creating the parent directories when used if required.
"""
self.root = root
self.filename = filename
self._parent = str(self.filename.parent)
self.handle = None
self.title = ''
# Should be set before calling adding items to the menu
self.menu_separator_tag = None
# Utility functions
self.type_to_path = lambda t: self._rel(type_to_path(t))
# Control signals
self.menu_began = False
self.table_columns = 0
self.table_columns_left = None
self.write_copy_script = False
self._script = ''
def _rel(self, path):
"""
Get the relative path for the given path from the current
file by working around https://bugs.python.org/issue20012.
"""
return os.path.relpath(
str(path), self._parent).replace(os.path.sep, '/')
# High level writing
def write_head(self, title, css_path, default_css):
"""Writes the head part for the generated document,
with the given title and CSS
"""
self.title = title
self.write(
'''<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>{title}</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link id="style" href="{rel_css}/docs.dark.css" rel="stylesheet">
<script>
document.getElementById("style").href = "{rel_css}/docs."
+ (localStorage.getItem("theme") || "{def_css}")
+ ".css";
</script>
<link href="https://fonts.googleapis.com/css?family=Nunito|Source+Code+Pro"
rel="stylesheet">
</head>
<body>
<div id="main_div">''',
title=title,
rel_css=self._rel(css_path),
def_css=default_css
)
def set_menu_separator(self, img):
"""Sets the menu separator.
Must be called before adding entries to the menu
"""
if img:
self.menu_separator_tag = '<img src="{}" alt="/" />'.format(
self._rel(img))
else:
self.menu_separator_tag = None
def add_menu(self, name, link=None):
"""Adds a menu entry, will create it if it doesn't exist yet"""
if self.menu_began:
if self.menu_separator_tag:
self.write(self.menu_separator_tag)
else:
# First time, create the menu tag
self.write('<ul class="horizontal">')
self.menu_began = True
self.write('<li>')
if link:
self.write('<a href="{}">', self._rel(link))
# Write the real menu entry text
self.write(name)
if link:
self.write('</a>')
self.write('</li>')
def end_menu(self):
"""Ends an opened menu"""
if not self.menu_began:
raise RuntimeError('No menu had been started in the first place.')
self.write('</ul>')
def write_title(self, title, level=1, id=None):
"""Writes a title header in the document body,
with an optional depth level
"""
if id:
self.write('<h{lv} id="{id}">{title}</h{lv}>',
title=title, lv=level, id=id)
else:
self.write('<h{lv}>{title}</h{lv}>',
title=title, lv=level)
def write_code(self, tlobject):
"""Writes the code for the given 'tlobject' properly
formatted with hyperlinks
"""
self.write('<pre>---{}---\n',
'functions' if tlobject.is_function else 'types')
# Write the function or type and its ID
if tlobject.namespace:
self.write(tlobject.namespace)
self.write('.')
self.write('{}#{:08x}', tlobject.name, tlobject.id)
# Write all the arguments (or do nothing if there's none)
for arg in tlobject.args:
self.write(' ')
add_link = not arg.generic_definition and not arg.is_generic
# "Opening" modifiers
if arg.generic_definition:
self.write('{')
# Argument name
self.write(arg.name)
self.write(':')
# "Opening" modifiers
if arg.is_flag:
self.write('flags.{}?', arg.flag_index)
if arg.is_generic:
self.write('!')
if arg.is_vector:
self.write('<a href="{}">Vector</a>&lt;',
self.type_to_path('vector'))
# Argument type
if arg.type:
if add_link:
self.write('<a href="{}">', self.type_to_path(arg.type))
self.write(arg.type)
if add_link:
self.write('</a>')
else:
self.write('#')
# "Closing" modifiers
if arg.is_vector:
self.write('&gt;')
if arg.generic_definition:
self.write('}')
# Now write the resulting type (result from a function/type)
self.write(' = ')
generic_name = next((arg.name for arg in tlobject.args
if arg.generic_definition), None)
if tlobject.result == generic_name:
# Generic results cannot have any link
self.write(tlobject.result)
else:
if re.search('^vector<', tlobject.result, re.IGNORECASE):
# Notice that we don't simply make up the "Vector" part,
# because some requests (as of now, only FutureSalts),
# use a lower type name for it (see #81)
vector, inner = tlobject.result.split('<')
inner = inner.strip('>')
self.write('<a href="{}">{}</a>&lt;',
self.type_to_path(vector), vector)
self.write('<a href="{}">{}</a>&gt;',
self.type_to_path(inner), inner)
else:
self.write('<a href="{}">{}</a>',
self.type_to_path(tlobject.result), tlobject.result)
self.write('</pre>')
def begin_table(self, column_count):
"""Begins a table with the given 'column_count', required to automatically
create the right amount of columns when adding items to the rows"""
self.table_columns = column_count
self.table_columns_left = 0
self.write('<table>')
def add_row(self, text, link=None, bold=False, align=None):
"""This will create a new row, or add text to the next column
of the previously created, incomplete row, closing it if complete"""
if not self.table_columns_left:
# Starting a new row
self.write('<tr>')
self.table_columns_left = self.table_columns
self.write('<td')
if align:
self.write(' style="text-align:{}"', align)
self.write('>')
if bold:
self.write('<b>')
if link:
self.write('<a href="{}">', self._rel(link))
# Finally write the real table data, the given text
self.write(text)
if link:
self.write('</a>')
if bold:
self.write('</b>')
self.write('</td>')
self.table_columns_left -= 1
if not self.table_columns_left:
self.write('</tr>')
def end_table(self):
# If there was any column left, finish it before closing the table
if self.table_columns_left:
self.write('</tr>')
self.write('</table>')
def write_text(self, text):
"""Writes a paragraph of text"""
self.write('<p>{}</p>', text)
def write_copy_button(self, text, text_to_copy):
"""Writes a button with 'text' which can be used
to copy 'text_to_copy' to clipboard when it's clicked."""
self.write_copy_script = True
self.write('<button onclick="cp(\'{}\');">{}</button>'
.format(text_to_copy, text))
def add_script(self, src='', path=None):
if path:
self._script += '<script src="{}"></script>'.format(
self._rel(path))
elif src:
self._script += '<script>{}</script>'.format(src)
def end_body(self):
"""Ends the whole document. This should be called the last"""
if self.write_copy_script:
self.write(
'<textarea id="c" class="invisible"></textarea>'
'<script>'
'function cp(t){'
'var c=document.getElementById("c");'
'c.value=t;'
'c.select();'
'try{document.execCommand("copy")}'
'catch(e){}}'
'</script>'
)
self.write('</div>{}</body></html>', self._script)
# "Low" level writing
def write(self, s, *args, **kwargs):
"""Wrapper around handle.write"""
if args or kwargs:
self.handle.write(s.format(*args, **kwargs))
else:
self.handle.write(s)
# With block
def __enter__(self):
# Sanity check
self.filename.parent.mkdir(parents=True, exist_ok=True)
self.handle = self.filename.open('w', encoding='utf-8')
return self
def __exit__(self, exc_type, exc_val, exc_tb):
self.handle.close()