mirror of https://github.com/python/cpython
gh-82927: Update files related to HTML entities. (GH-92504)
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@ -53,6 +53,7 @@ Python/pythonrun.c @iritkatriel
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/Lib/html/ @ezio-melotti
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/Lib/_markupbase.py @ezio-melotti
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/Lib/test/test_html*.py @ezio-melotti
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/Tools/scripts/*html5* @ezio-melotti
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# Import (including importlib).
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# Ignoring importlib.h so as to not get flagged on
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@ -34,12 +34,12 @@ This module defines four dictionaries, :data:`html5`,
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.. data:: name2codepoint
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A dictionary that maps HTML entity names to the Unicode code points.
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A dictionary that maps HTML4 entity names to the Unicode code points.
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.. data:: codepoint2name
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A dictionary that maps Unicode code points to HTML entity names.
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A dictionary that maps Unicode code points to HTML4 entity names.
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.. rubric:: Footnotes
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@ -3,8 +3,7 @@
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__all__ = ['html5', 'name2codepoint', 'codepoint2name', 'entitydefs']
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# maps the HTML entity name to the Unicode code point
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# from https://html.spec.whatwg.org/multipage/named-characters.html
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# maps HTML4 entity name to the Unicode code point
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name2codepoint = {
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'AElig': 0x00c6, # latin capital letter AE = latin capital ligature AE, U+00C6 ISOlat1
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'Aacute': 0x00c1, # latin capital letter A with acute, U+00C1 ISOlat1
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@ -261,7 +260,11 @@ name2codepoint = {
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}
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# maps the HTML5 named character references to the equivalent Unicode character(s)
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# HTML5 named character references
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# Generated by 'Tools/scripts/parse_html5_entities.py'
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# from https://html.spec.whatwg.org/entities.json and
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# https://html.spec.whatwg.org/multipage/named-characters.html.
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# Map HTML5 named character references to the equivalent Unicode character(s).
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html5 = {
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'Aacute': '\xc1',
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'aacute': '\xe1',
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@ -0,0 +1,2 @@
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The ``Tools/scripts/parseentities.py`` script used to parse HTML4 entities
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has been removed.
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@ -2,10 +2,14 @@
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"""
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Utility for parsing HTML5 entity definitions available from:
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http://dev.w3.org/html5/spec/entities.json
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https://html.spec.whatwg.org/entities.json
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https://html.spec.whatwg.org/multipage/named-characters.html
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The page now contains the following note:
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"This list is static and will not be expanded or changed in the future."
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Written by Ezio Melotti and Iuliia Proskurnia.
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"""
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import os
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@ -14,7 +18,9 @@ import json
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from urllib.request import urlopen
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from html.entities import html5
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entities_url = 'http://dev.w3.org/html5/spec/entities.json'
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PAGE_URL = 'https://html.spec.whatwg.org/multipage/named-characters.html'
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ENTITIES_URL = 'https://html.spec.whatwg.org/entities.json'
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HTML5_SECTION_START = '# HTML5 named character references'
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def get_json(url):
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"""Download the json file from the url and returns a decoded object."""
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@ -62,9 +68,15 @@ def write_items(entities, file=sys.stdout):
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# be before their equivalent lowercase version.
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keys = sorted(entities.keys())
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keys = sorted(keys, key=str.lower)
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print(HTML5_SECTION_START, file=file)
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print(f'# Generated by {sys.argv[0]!r}\n'
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f'# from {ENTITIES_URL} and\n'
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f'# {PAGE_URL}.\n'
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f'# Map HTML5 named character references to the '
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f'equivalent Unicode character(s).', file=file)
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print('html5 = {', file=file)
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for name in keys:
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print(' {!r}: {!a},'.format(name, entities[name]), file=file)
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print(f' {name!r}: {entities[name]!a},', file=file)
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print('}', file=file)
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@ -72,11 +84,8 @@ if __name__ == '__main__':
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# without args print a diff between html.entities.html5 and new_html5
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# with --create print the new html5 dict
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# with --patch patch the Lib/html/entities.py file
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new_html5 = create_dict(get_json(entities_url))
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new_html5 = create_dict(get_json(ENTITIES_URL))
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if '--create' in sys.argv:
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print('# map the HTML5 named character references to the '
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'equivalent Unicode character(s)')
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print('# Generated by {}. Do not edit manually.'.format(__file__))
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write_items(new_html5)
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elif '--patch' in sys.argv:
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fname = 'Lib/html/entities.py'
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@ -84,7 +93,7 @@ if __name__ == '__main__':
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with open(fname) as f1, open(temp_fname, 'w') as f2:
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skip = False
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for line in f1:
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if line.startswith('html5 = {'):
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if line.startswith(HTML5_SECTION_START):
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write_items(new_html5, file=f2)
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skip = True
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continue
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@ -1,64 +0,0 @@
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#!/usr/bin/env python3
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""" Utility for parsing HTML entity definitions available from:
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http://www.w3.org/ as e.g.
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http://www.w3.org/TR/REC-html40/HTMLlat1.ent
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Input is read from stdin, output is written to stdout in form of a
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Python snippet defining a dictionary "entitydefs" mapping literal
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entity name to character or numeric entity.
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Marc-Andre Lemburg, mal@lemburg.com, 1999.
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Use as you like. NO WARRANTIES.
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"""
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import re,sys
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entityRE = re.compile(r'<!ENTITY +(\w+) +CDATA +"([^"]+)" +-- +((?:.|\n)+?) *-->')
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def parse(text,pos=0,endpos=None):
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pos = 0
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if endpos is None:
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endpos = len(text)
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d = {}
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while 1:
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m = entityRE.search(text,pos,endpos)
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if not m:
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break
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name,charcode,comment = m.groups()
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d[name] = charcode,comment
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pos = m.end()
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return d
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def writefile(f,defs):
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f.write("entitydefs = {\n")
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items = sorted(defs.items())
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for name, (charcode,comment) in items:
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if charcode[:2] == '&#':
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code = int(charcode[2:-1])
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if code < 256:
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charcode = r"'\%o'" % code
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else:
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charcode = repr(charcode)
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else:
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charcode = repr(charcode)
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comment = ' '.join(comment.split())
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f.write(" '%s':\t%s, \t# %s\n" % (name,charcode,comment))
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f.write('\n}\n')
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if __name__ == '__main__':
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if len(sys.argv) > 1:
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with open(sys.argv[1]) as infile:
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text = infile.read()
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else:
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text = sys.stdin.read()
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defs = parse(text)
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if len(sys.argv) > 2:
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with open(sys.argv[2],'w') as outfile:
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writefile(outfile, defs)
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else:
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writefile(sys.stdout, defs)
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