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llvm-project
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make_cxx_dr_status 
308 строк · 10.3 Кб
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#! /usr/bin/env python3
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import sys, os, re, urllib.request
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latest_release = 18
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clang_www_dir = os.path.dirname(__file__)
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default_issue_list_path = os.path.join(clang_www_dir, 'cwg_index.html')
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issue_list_url = "https://raw.githubusercontent.com/cplusplus/CWG/gh-pages/issues/cwg_index.html"
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output = os.path.join(clang_www_dir, 'cxx_dr_status.html')
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dr_test_dir = os.path.join(clang_www_dir, '../test/CXX/drs')
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class DR:
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  def __init__(self, section, issue, url, status, title):
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    self.section, self.issue, self.url, self.status, self.title = \
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        section, issue, url, status, title
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  def __repr__(self):
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    return '%s (%s): %s' % (self.issue, self.status, self.title)
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def parse(dr):
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  try:
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    section, issue_link, status, liaison, title = [
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        col.split('>', 1)[1].split('</TD>')[0]
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        for col in dr.split('</TR>', 1)[0].split('<TD')[1:]
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    ]
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  except Exception as ex:
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    print(f"Parse error: {ex}\n{dr}", file=sys.stderr)
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    sys.exit(1)
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  _, url, issue = issue_link.split('"', 2)
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  url = url.strip()
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  issue = int(issue.split('>', 1)[1].split('<', 1)[0])
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  title = title.replace('<issue_title>', '').replace('</issue_title>', '').replace('\r\n', '\n').strip()
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  return DR(section, issue, url, status, title)
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def collect_tests():
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  status_re = re.compile(r'\bcwg([0-9]+): (.*)')
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  status_map = {}
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  for test_cpp in os.listdir(dr_test_dir):
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    if not test_cpp.endswith('.cpp'):
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      continue
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    test_cpp = os.path.join(dr_test_dir, test_cpp)
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    found_any = False;
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    for match in re.finditer(status_re, open(test_cpp, 'r').read()):
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      dr_number = int(match.group(1))
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      if dr_number in status_map:
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        print("error: Comment for cwg{} encountered more than once. Duplicate found in {}".format(dr_number, test_cpp))
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        sys.exit(1)
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      status_map[dr_number] = match.group(2)
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      found_any = True
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    if not found_any:
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      print("warning:%s: no '// cwg123: foo' comments in this file" % test_cpp, file=sys.stderr)
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  return status_map
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def get_issues(path):
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  buffer = None
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  if not path and os.path.exists(default_issue_list_path):
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    path = default_issue_list_path
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  try:
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    if path is None:
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      print('Fetching issue list from {}'.format(issue_list_url))
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      with urllib.request.urlopen(issue_list_url) as f:
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        buffer = f.read().decode('utf-8')
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    else:
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      print('Opening issue list from file {}'.format(path))
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      with open(path, 'r') as f:
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        buffer = f.read()
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  except Exception as ex:
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     print('Unable to read the core issue list', file=sys.stderr)
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     print(ex, file=sys.stderr)
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     sys.exit(1)
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  return sorted((parse(dr) for dr in buffer.split('<TR>')[2:]),
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                key = lambda dr: dr.issue)
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issue_list_path  = None
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if len(sys.argv) == 1:
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  pass
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elif len(sys.argv) == 2:
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  issue_list_path = sys.argv[1]
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else:
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  print('Usage: {} [<path to cwg_index.html>]'.format(sys.argv[0]), file=sys.stderr)
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  sys.exit(1)
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status_map = collect_tests()
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drs = get_issues(issue_list_path)
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out_file = open(output, 'w')
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out_file.write('''\
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<!DOCTYPE html>
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<!-- This file is auto-generated by make_cxx_dr_status. Do not modify. -->
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<html>
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<head>
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  <META http-equiv="Content-Type" content="text/html; charset=utf-8">
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  <title>Clang - C++ Defect Report Status</title>
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  <link type="text/css" rel="stylesheet" href="menu.css">
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  <link type="text/css" rel="stylesheet" href="content.css">
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  <style type="text/css">
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    .none { background-color: #FFCCCC }
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    .none-superseded { background-color: rgba(255, 204, 204, 0.65) }
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    .unknown { background-color: #EBCAFE }
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    .unknown-superseded { background-color: rgba(234, 200, 254, 0.65) }
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    .partial { background-color: #FFE0B0 }
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    .partial-superseded { background-color: rgba(255, 224, 179, 0.65) }
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    .unreleased { background-color: #FFFF99 }
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    .unreleased-superseded { background-color: rgba(255, 255, 153, 0.65) }
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    .full { background-color: #CCFF99 }
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    .full-superseded { background-color: rgba(214, 255, 173, 0.65) }
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    .na { background-color: #DDDDDD }
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    .na-superseded { background-color: rgba(222, 222, 222, 0.65) }
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    .open * { color: #AAAAAA }
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    .open-superseded * { color: rgba(171, 171, 171, 0.65) }
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    //.open { filter: opacity(0.2) }
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    tr:target { background-color: #FFFFBB }
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    th { background-color: #FFDDAA }
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  </style>
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</head>
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<body>
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<!--#include virtual="menu.html.incl"-->
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<div id="content">
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<!--*************************************************************************-->
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<h1>C++ Defect Report Support in Clang</h1>
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<!--*************************************************************************-->
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<h2 id="cxxdr">C++ defect report implementation status</h2>
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<p>This page tracks which C++ defect reports are implemented within Clang.</p>
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<table width="689" border="1" cellspacing="0">
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  <tr>
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    <th>Number</th>
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    <th>Status</th>
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    <th>Issue title</th>
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    <th>Available in Clang?</th>
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  </tr>''')
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class AvailabilityError(RuntimeError):
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  pass
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availability_error_occurred = False
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def availability(issue):
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  status = status_map.get(issue, 'unknown')
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  unresolved_status = ''
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  proposed_resolution = ''
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  unresolved_status_match = re.search(r' (open|drafting|review|tentatively ready)', status)
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  if unresolved_status_match:
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    unresolved_status = unresolved_status_match.group(1)
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    proposed_resolution_match = re.search(r' (open|drafting|review|tentatively ready) (\d{4}-\d{2}(?:-\d{2})?|P\d{4}R\d+)$', status)
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    if proposed_resolution_match is None:
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      raise AvailabilityError('Issue {}: \'{}\' status should be followed by a paper number (P1234R5) or proposed resolution in YYYY-MM-DD format'.format(dr.issue, unresolved_status))
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    proposed_resolution = proposed_resolution_match.group(2)
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    status = status[:-1-len(proposed_resolution)]
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    status = status[:-1-len(unresolved_status)]
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  avail_suffix = ''
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  avail_style = ''
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  tooltip = ''
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  if status.endswith(' c++11'):
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    status = status[:-6]
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    avail_suffix = ' (C++11 onwards)'
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  elif status.endswith(' c++14'):
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    status = status[:-6]
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    avail_suffix = ' (C++14 onwards)'
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  elif status.endswith(' c++17'):
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    status = status[:-6]
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    avail_suffix = ' (C++17 onwards)'
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  elif status.endswith(' c++20'):
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    status = status[:-6]
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    avail_suffix = ' (C++20 onwards)'
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  if status == 'unknown':
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    avail = 'Unknown'
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    avail_style = 'unknown'
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  elif re.match(r'^[0-9]+\.?[0-9]*', status):
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    if not proposed_resolution:
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      avail = 'Clang %s' % status
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      if float(status) > latest_release:
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        avail_style = 'unreleased'
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      else:
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        avail_style = 'full'
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    else: 
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      avail = 'Not Resolved*'
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      tooltip = f' title="Clang {status} implements {proposed_resolution} resolution"'
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  elif status == 'yes':
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    if not proposed_resolution:
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      avail = 'Yes'
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      avail_style = 'full'
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    else:
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      avail = 'Not Resolved*'
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      tooltip = f' title="Clang implements {proposed_resolution} resolution"'
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  elif status == 'partial':
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    if not proposed_resolution:
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      avail = 'Partial'
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      avail_style = 'partial'
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    else:
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      avail = 'Not Resolved*'
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      tooltip = f' title="Clang partially implements {proposed_resolution} resolution"'
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  elif status == 'no':
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    if not proposed_resolution:
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      avail = 'No'
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      avail_style = 'none'
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    else:
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      avail = 'Not Resolved*'
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      tooltip = f' title="Clang does not implement {proposed_resolution} resolution"'
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  elif status == 'na':
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    avail = 'N/A'
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    avail_style = 'na'
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  elif status == 'na lib':
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    avail = 'N/A (Library DR)'
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    avail_style = 'na'
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  elif status == 'na abi':
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    avail = 'N/A (ABI constraint)'
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    avail_style = 'na'
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  elif status.startswith('sup '):
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    dup = status.split(' ', 1)[1]
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    if dup.startswith('P'):
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      avail = 'Superseded by <a href="https://wg21.link/%s">%s</a>' % (dup, dup)
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      avail_style = 'na'
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    else:
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      avail = 'Superseded by <a href="#%s">%s</a>' % (dup, dup)
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      try:
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        _, avail_style, _, _ = availability(int(dup))
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        avail_style += '-superseded'
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      except:
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        print("issue %s marked as sup %s" % (issue, dup), file=sys.stderr)
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        avail_style = 'none'
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  elif status.startswith('dup '):
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    dup = int(status.split(' ', 1)[1])
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    avail = 'Duplicate of <a href="#%s">%s</a>' % (dup, dup)
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    _, avail_style, _, _ = availability(dup)
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  else:
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    raise AvailabilityError('Unknown status %s for issue %s' % (status, dr.issue))
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  return (avail + avail_suffix, avail_style, unresolved_status, tooltip)
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count = {}
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for dr in drs:
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  if dr.status in ('concepts',):
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    # This refers to the old ("C++0x") concepts feature, which was not part
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    # of any C++ International Standard or Technical Specification.
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    continue
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  elif dr.status == 'extension':
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    row_style = ' class="open"'
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    avail = 'Extension'
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    avail_style = ''
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  elif dr.status in ('open', 'drafting', 'review', 'tentatively ready'):
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    row_style = ' class="open"'
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    try:
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      avail, avail_style, unresolved_status, tooltip = availability(dr.issue)
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    except AvailabilityError as e:
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      availability_error_occurred = True
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      print(e.args[0])
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      continue
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    if avail == 'Unknown':
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      avail = 'Not resolved'
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      avail_style = ''
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    else:
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      if unresolved_status != dr.status:
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        availability_error_occurred = True
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        print("Issue %s is marked '%s', which differs from CWG index status '%s'" \
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             % (dr.issue, unresolved_status, dr.status))
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        continue
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  else:
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    row_style = ''
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    try:
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      avail, avail_style, unresolved_status, tooltip = availability(dr.issue)
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    except AvailabilityError as e:
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      availability_error_occurred = True
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      print(e.args[0])
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      continue
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    if unresolved_status:
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      availability_error_occurred = True
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      print("Issue %s is marked '%s', even though it is resolved in CWG index" \
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           % (dr.issue, unresolved_status))
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      continue
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  if not avail.startswith('Sup') and not avail.startswith('Dup'):
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    count[avail] = count.get(avail, 0) + 1
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  if avail_style != '':
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    avail_style = ' class="{}"'.format(avail_style)
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  out_file.write('''
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  <tr%s id="%s">
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    <td><a href="https://cplusplus.github.io/CWG/issues/%s.html">%s</a></td>
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    <td>%s</td>
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    <td>%s</td>
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    <td%s%s align="center">%s</td>
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  </tr>''' % (row_style, dr.issue, dr.issue, dr.issue, dr.status, dr.title, avail_style, tooltip, avail))
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if availability_error_occurred:
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  exit(1)
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for status, num in sorted(count.items()):
299
  print("%s: %s" % (status, num), file=sys.stderr)
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out_file.write('''\
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</table>
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</div>
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</body>
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</html>
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''')
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out_file.close()
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