tests: conditionalize test-hightlight.t on pygments version

Output changed slightly in pygments 2.5.

I thought it was easier to copy the line and add a version
check than to add a regular expression because the line has some
special characters. I also like tests explicitly calling out where
they vary.

Differential Revision: https://phab.mercurial-scm.org/D7943

tests/hghave.py

@@ -1,1025 +1,1041 b''
 from __future__ import absolute_import, print_function
 
 import distutils.version
 import os
 import re
 import socket
 import stat
 import subprocess
 import sys
 import tempfile
 
 tempprefix = 'hg-hghave-'
 
 checks = {
     "true": (lambda: True, "yak shaving"),
     "false": (lambda: False, "nail clipper"),
 }
 
 try:
     import msvcrt
 
     msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
     msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
 except ImportError:
     pass
 
 stdout = getattr(sys.stdout, 'buffer', sys.stdout)
 stderr = getattr(sys.stderr, 'buffer', sys.stderr)
 
 if sys.version_info[0] >= 3:
 
     def _bytespath(p):
         if p is None:
             return p
         return p.encode('utf-8')
 
     def _strpath(p):
         if p is None:
             return p
         return p.decode('utf-8')
 
 
 else:
 
     def _bytespath(p):
         return p
 
     _strpath = _bytespath
 
 
 def check(name, desc):
     """Registers a check function for a feature."""
 
     def decorator(func):
         checks[name] = (func, desc)
         return func
 
     return decorator
 
 
 def checkvers(name, desc, vers):
     """Registers a check function for each of a series of versions.
 
     vers can be a list or an iterator.
 
     Produces a series of feature checks that have the form <name><vers> without
     any punctuation (even if there's punctuation in 'vers'; i.e. this produces
     'py38', not 'py3.8' or 'py-38')."""
 
     def decorator(func):
         def funcv(v):
             def f():
                 return func(v)
 
             return f
 
         for v in vers:
             v = str(v)
             f = funcv(v)
             checks['%s%s' % (name, v.replace('.', ''))] = (f, desc % v)
         return func
 
     return decorator
 
 
 def checkfeatures(features):
     result = {
         'error': [],
         'missing': [],
         'skipped': [],
     }
 
     for feature in features:
         negate = feature.startswith('no-')
         if negate:
             feature = feature[3:]
 
         if feature not in checks:
             result['missing'].append(feature)
             continue
 
         check, desc = checks[feature]
         try:
             available = check()
         except Exception:
             result['error'].append('hghave check failed: %s' % feature)
             continue
 
         if not negate and not available:
             result['skipped'].append('missing feature: %s' % desc)
         elif negate and available:
             result['skipped'].append('system supports %s' % desc)
 
     return result
 
 
 def require(features):
     """Require that features are available, exiting if not."""
     result = checkfeatures(features)
 
     for missing in result['missing']:
         stderr.write(
             ('skipped: unknown feature: %s\n' % missing).encode('utf-8')
         )
     for msg in result['skipped']:
         stderr.write(('skipped: %s\n' % msg).encode('utf-8'))
     for msg in result['error']:
         stderr.write(('%s\n' % msg).encode('utf-8'))
 
     if result['missing']:
         sys.exit(2)
 
     if result['skipped'] or result['error']:
         sys.exit(1)
 
 
 def matchoutput(cmd, regexp, ignorestatus=False):
     """Return the match object if cmd executes successfully and its output
     is matched by the supplied regular expression.
     """
     r = re.compile(regexp)
     p = subprocess.Popen(
         cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
     )
     s = p.communicate()[0]
     ret = p.returncode
     return (ignorestatus or not ret) and r.search(s)
 
 
 @check("baz", "GNU Arch baz client")
 def has_baz():
     return matchoutput('baz --version 2>&1', br'baz Bazaar version')
 
 
 @check("bzr", "Canonical's Bazaar client")
 def has_bzr():
     try:
         import bzrlib
         import bzrlib.bzrdir
         import bzrlib.errors
         import bzrlib.revision
         import bzrlib.revisionspec
 
         bzrlib.revisionspec.RevisionSpec
         return bzrlib.__doc__ is not None
     except (AttributeError, ImportError):
         return False
 
 
 @checkvers("bzr", "Canonical's Bazaar client >= %s", (1.14,))
 def has_bzr_range(v):
     major, minor = v.split('rc')[0].split('.')[0:2]
     try:
         import bzrlib
 
         return bzrlib.__doc__ is not None and bzrlib.version_info[:2] >= (
             int(major),
             int(minor),
         )
     except ImportError:
         return False
 
 
 @check("chg", "running with chg")
 def has_chg():
     return 'CHGHG' in os.environ
 
 
 @check("cvs", "cvs client/server")
 def has_cvs():
     re = br'Concurrent Versions System.*?server'
     return matchoutput('cvs --version 2>&1', re) and not has_msys()
 
 
 @check("cvs112", "cvs client/server 1.12.* (not cvsnt)")
 def has_cvs112():
     re = br'Concurrent Versions System \(CVS\) 1.12.*?server'
     return matchoutput('cvs --version 2>&1', re) and not has_msys()
 
 
 @check("cvsnt", "cvsnt client/server")
 def has_cvsnt():
     re = br'Concurrent Versions System \(CVSNT\) (\d+).(\d+).*\(client/server\)'
     return matchoutput('cvsnt --version 2>&1', re)
 
 
 @check("darcs", "darcs client")
 def has_darcs():
     return matchoutput('darcs --version', br'\b2\.([2-9]|\d{2})', True)
 
 
 @check("mtn", "monotone client (>= 1.0)")
 def has_mtn():
     return matchoutput('mtn --version', br'monotone', True) and not matchoutput(
         'mtn --version', br'monotone 0\.', True
     )
 
 
 @check("eol-in-paths", "end-of-lines in paths")
 def has_eol_in_paths():
     try:
         fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix, suffix='\n\r')
         os.close(fd)
         os.remove(path)
         return True
     except (IOError, OSError):
         return False
 
 
 @check("execbit", "executable bit")
 def has_executablebit():
     try:
         EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
         fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix)
         try:
             os.close(fh)
             m = os.stat(fn).st_mode & 0o777
             new_file_has_exec = m & EXECFLAGS
             os.chmod(fn, m ^ EXECFLAGS)
             exec_flags_cannot_flip = (os.stat(fn).st_mode & 0o777) == m
         finally:
             os.unlink(fn)
     except (IOError, OSError):
         # we don't care, the user probably won't be able to commit anyway
         return False
     return not (new_file_has_exec or exec_flags_cannot_flip)
 
 
 @check("icasefs", "case insensitive file system")
 def has_icasefs():
     # Stolen from mercurial.util
     fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix)
     os.close(fd)
     try:
         s1 = os.stat(path)
         d, b = os.path.split(path)
         p2 = os.path.join(d, b.upper())
         if path == p2:
             p2 = os.path.join(d, b.lower())
         try:
             s2 = os.stat(p2)
             return s2 == s1
         except OSError:
             return False
     finally:
         os.remove(path)
 
 
 @check("fifo", "named pipes")
 def has_fifo():
     if getattr(os, "mkfifo", None) is None:
         return False
     name = tempfile.mktemp(dir='.', prefix=tempprefix)
     try:
         os.mkfifo(name)
         os.unlink(name)
         return True
     except OSError:
         return False
 
 
 @check("killdaemons", 'killdaemons.py support')
 def has_killdaemons():
     return True
 
 
 @check("cacheable", "cacheable filesystem")
 def has_cacheable_fs():
     from mercurial import util
 
     fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix)
     os.close(fd)
     try:
         return util.cachestat(path).cacheable()
     finally:
         os.remove(path)
 
 
 @check("lsprof", "python lsprof module")
 def has_lsprof():
     try:
         import _lsprof
 
         _lsprof.Profiler  # silence unused import warning
         return True
     except ImportError:
         return False
 
 
 def gethgversion():
     m = matchoutput('hg --version --quiet 2>&1', br'(\d+)\.(\d+)')
     if not m:
         return (0, 0)
     return (int(m.group(1)), int(m.group(2)))
 
 
 @checkvers(
     "hg", "Mercurial >= %s", list([(1.0 * x) / 10 for x in range(9, 99)])
 )
 def has_hg_range(v):
     major, minor = v.split('.')[0:2]
     return gethgversion() >= (int(major), int(minor))
 
 
 @check("hg08", "Mercurial >= 0.8")
 def has_hg08():
     if checks["hg09"][0]():
         return True
     return matchoutput('hg help annotate 2>&1', '--date')
 
 
 @check("hg07", "Mercurial >= 0.7")
 def has_hg07():
     if checks["hg08"][0]():
         return True
     return matchoutput('hg --version --quiet 2>&1', 'Mercurial Distributed SCM')
 
 
 @check("hg06", "Mercurial >= 0.6")
 def has_hg06():
     if checks["hg07"][0]():
         return True
     return matchoutput('hg --version --quiet 2>&1', 'Mercurial version')
 
 
 @check("gettext", "GNU Gettext (msgfmt)")
 def has_gettext():
     return matchoutput('msgfmt --version', br'GNU gettext-tools')
 
 
 @check("git", "git command line client")
 def has_git():
     return matchoutput('git --version 2>&1', br'^git version')
 
 
 def getgitversion():
     m = matchoutput('git --version 2>&1', br'git version (\d+)\.(\d+)')
     if not m:
         return (0, 0)
     return (int(m.group(1)), int(m.group(2)))
 
 
 # https://github.com/git-lfs/lfs-test-server
 @check("lfs-test-server", "git-lfs test server")
 def has_lfsserver():
     exe = 'lfs-test-server'
     if has_windows():
         exe = 'lfs-test-server.exe'
     return any(
         os.access(os.path.join(path, exe), os.X_OK)
         for path in os.environ["PATH"].split(os.pathsep)
     )
 
 
 @checkvers("git", "git client (with ext::sh support) version >= %s", (1.9,))
 def has_git_range(v):
     major, minor = v.split('.')[0:2]
     return getgitversion() >= (int(major), int(minor))
 
 
 @check("docutils", "Docutils text processing library")
 def has_docutils():
     try:
         import docutils.core
 
         docutils.core.publish_cmdline  # silence unused import
         return True
     except ImportError:
         return False
 
 
 def getsvnversion():
     m = matchoutput('svn --version --quiet 2>&1', br'^(\d+)\.(\d+)')
     if not m:
         return (0, 0)
     return (int(m.group(1)), int(m.group(2)))
 
 
 @checkvers("svn", "subversion client and admin tools >= %s", (1.3, 1.5))
 def has_svn_range(v):
     major, minor = v.split('.')[0:2]
     return getsvnversion() >= (int(major), int(minor))
 
 
 @check("svn", "subversion client and admin tools")
 def has_svn():
     return matchoutput('svn --version 2>&1', br'^svn, version') and matchoutput(
         'svnadmin --version 2>&1', br'^svnadmin, version'
     )
 
 
 @check("svn-bindings", "subversion python bindings")
 def has_svn_bindings():
     try:
         import svn.core
 
         version = svn.core.SVN_VER_MAJOR, svn.core.SVN_VER_MINOR
         if version < (1, 4):
             return False
         return True
     except ImportError:
         return False
 
 
 @check("p4", "Perforce server and client")
 def has_p4():
     return matchoutput('p4 -V', br'Rev\. P4/') and matchoutput(
         'p4d -V', br'Rev\. P4D/'
     )
 
 
 @check("symlink", "symbolic links")
 def has_symlink():
     # mercurial.windows.checklink() is a hard 'no' at the moment
     if os.name == 'nt' or getattr(os, "symlink", None) is None:
         return False
     name = tempfile.mktemp(dir='.', prefix=tempprefix)
     try:
         os.symlink(".", name)
         os.unlink(name)
         return True
     except (OSError, AttributeError):
         return False
 
 
 @check("hardlink", "hardlinks")
 def has_hardlink():
     from mercurial import util
 
     fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix)
     os.close(fh)
     name = tempfile.mktemp(dir='.', prefix=tempprefix)
     try:
         util.oslink(_bytespath(fn), _bytespath(name))
         os.unlink(name)
         return True
     except OSError:
         return False
     finally:
         os.unlink(fn)
 
 
 @check("hardlink-whitelisted", "hardlinks on whitelisted filesystems")
 def has_hardlink_whitelisted():
     from mercurial import util
 
     try:
         fstype = util.getfstype(b'.')
     except OSError:
         return False
     return fstype in util._hardlinkfswhitelist
 
 
 @check("rmcwd", "can remove current working directory")
 def has_rmcwd():
     ocwd = os.getcwd()
     temp = tempfile.mkdtemp(dir='.', prefix=tempprefix)
     try:
         os.chdir(temp)
         # On Linux, 'rmdir .' isn't allowed, but the other names are okay.
         # On Solaris and Windows, the cwd can't be removed by any names.
         os.rmdir(os.getcwd())
         return True
     except OSError:
         return False
     finally:
         os.chdir(ocwd)
         # clean up temp dir on platforms where cwd can't be removed
         try:
             os.rmdir(temp)
         except OSError:
             pass
 
 
 @check("tla", "GNU Arch tla client")
 def has_tla():
     return matchoutput('tla --version 2>&1', br'The GNU Arch Revision')
 
 
 @check("gpg", "gpg client")
 def has_gpg():
     return matchoutput('gpg --version 2>&1', br'GnuPG')
 
 
 @check("gpg2", "gpg client v2")
 def has_gpg2():
     return matchoutput('gpg --version 2>&1', br'GnuPG[^0-9]+2\.')
 
 
 @check("gpg21", "gpg client v2.1+")
 def has_gpg21():
     return matchoutput('gpg --version 2>&1', br'GnuPG[^0-9]+2\.(?!0)')
 
 
 @check("unix-permissions", "unix-style permissions")
 def has_unix_permissions():
     d = tempfile.mkdtemp(dir='.', prefix=tempprefix)
     try:
         fname = os.path.join(d, 'foo')
         for umask in (0o77, 0o07, 0o22):
             os.umask(umask)
             f = open(fname, 'w')
             f.close()
             mode = os.stat(fname).st_mode
             os.unlink(fname)
             if mode & 0o777 != ~umask & 0o666:
                 return False
         return True
     finally:
         os.rmdir(d)
 
 
 @check("unix-socket", "AF_UNIX socket family")
 def has_unix_socket():
     return getattr(socket, 'AF_UNIX', None) is not None
 
 
 @check("root", "root permissions")
 def has_root():
     return getattr(os, 'geteuid', None) and os.geteuid() == 0
 
 
 @check("pyflakes", "Pyflakes python linter")
 def has_pyflakes():
     return matchoutput(
         "sh -c \"echo 'import re' 2>&1 | pyflakes\"",
         br"<stdin>:1: 're' imported but unused",
         True,
     )
 
 
 @check("pylint", "Pylint python linter")
 def has_pylint():
     return matchoutput("pylint --help", br"Usage:  pylint", True)
 
 
 @check("clang-format", "clang-format C code formatter")
 def has_clang_format():
     m = matchoutput('clang-format --version', br'clang-format version (\d)')
     # style changed somewhere between 4.x and 6.x
     return m and int(m.group(1)) >= 6
 
 
 @check("jshint", "JSHint static code analysis tool")
 def has_jshint():
     return matchoutput("jshint --version 2>&1", br"jshint v")
 
 
 @check("pygments", "Pygments source highlighting library")
 def has_pygments():
     try:
         import pygments
 
         pygments.highlight  # silence unused import warning
         return True
     except ImportError:
         return False
 
 
+@check("pygments25", "Pygments version >= 2.5")
+def pygments25():
+    try:
+        import pygments
+
+        v = pygments.__version__
+    except ImportError:
+        return False
+
+    parts = v.split(".")
+    major = int(parts[0])
+    minor = int(parts[1])
+
+    return (major, minor) >= (2, 5)
+
+
 @check("outer-repo", "outer repo")
 def has_outer_repo():
     # failing for other reasons than 'no repo' imply that there is a repo
     return not matchoutput('hg root 2>&1', br'abort: no repository found', True)
 
 
 @check("ssl", "ssl module available")
 def has_ssl():
     try:
         import ssl
 
         ssl.CERT_NONE
         return True
     except ImportError:
         return False
 
 
 @check("sslcontext", "python >= 2.7.9 ssl")
 def has_sslcontext():
     try:
         import ssl
 
         ssl.SSLContext
         return True
     except (ImportError, AttributeError):
         return False
 
 
 @check("defaultcacerts", "can verify SSL certs by system's CA certs store")
 def has_defaultcacerts():
     from mercurial import sslutil, ui as uimod
 
     ui = uimod.ui.load()
     return sslutil._defaultcacerts(ui) or sslutil._canloaddefaultcerts
 
 
 @check("defaultcacertsloaded", "detected presence of loaded system CA certs")
 def has_defaultcacertsloaded():
     import ssl
     from mercurial import sslutil, ui as uimod
 
     if not has_defaultcacerts():
         return False
     if not has_sslcontext():
         return False
 
     ui = uimod.ui.load()
     cafile = sslutil._defaultcacerts(ui)
     ctx = ssl.create_default_context()
     if cafile:
         ctx.load_verify_locations(cafile=cafile)
     else:
         ctx.load_default_certs()
 
     return len(ctx.get_ca_certs()) > 0
 
 
 @check("tls1.2", "TLS 1.2 protocol support")
 def has_tls1_2():
     from mercurial import sslutil
 
     return b'tls1.2' in sslutil.supportedprotocols
 
 
 @check("windows", "Windows")
 def has_windows():
     return os.name == 'nt'
 
 
 @check("system-sh", "system() uses sh")
 def has_system_sh():
     return os.name != 'nt'
 
 
 @check("serve", "platform and python can manage 'hg serve -d'")
 def has_serve():
     return True
 
 
 @check("test-repo", "running tests from repository")
 def has_test_repo():
     t = os.environ["TESTDIR"]
     return os.path.isdir(os.path.join(t, "..", ".hg"))
 
 
 @check("tic", "terminfo compiler and curses module")
 def has_tic():
     try:
         import curses
 
         curses.COLOR_BLUE
         return matchoutput('test -x "`which tic`"', br'')
     except ImportError:
         return False
 
 
 @check("xz", "xz compression utility")
 def has_xz():
     # When Windows invokes a subprocess in shell mode, it uses `cmd.exe`, which
     # only knows `where`, not `which`.  So invoke MSYS shell explicitly.
     return matchoutput("sh -c 'test -x \"`which xz`\"'", b'')
 
 
 @check("msys", "Windows with MSYS")
 def has_msys():
     return os.getenv('MSYSTEM')
 
 
 @check("aix", "AIX")
 def has_aix():
     return sys.platform.startswith("aix")
 
 
 @check("osx", "OS X")
 def has_osx():
     return sys.platform == 'darwin'
 
 
 @check("osxpackaging", "OS X packaging tools")
 def has_osxpackaging():
     try:
         return (
             matchoutput('pkgbuild', br'Usage: pkgbuild ', ignorestatus=1)
             and matchoutput(
                 'productbuild', br'Usage: productbuild ', ignorestatus=1
             )
             and matchoutput('lsbom', br'Usage: lsbom', ignorestatus=1)
             and matchoutput('xar --help', br'Usage: xar', ignorestatus=1)
         )
     except ImportError:
         return False
 
 
 @check('linuxormacos', 'Linux or MacOS')
 def has_linuxormacos():
     # This isn't a perfect test for MacOS. But it is sufficient for our needs.
     return sys.platform.startswith(('linux', 'darwin'))
 
 
 @check("docker", "docker support")
 def has_docker():
     pat = br'A self-sufficient runtime for'
     if matchoutput('docker --help', pat):
         if 'linux' not in sys.platform:
             # TODO: in theory we should be able to test docker-based
             # package creation on non-linux using boot2docker, but in
             # practice that requires extra coordination to make sure
             # $TESTTEMP is going to be visible at the same path to the
             # boot2docker VM. If we figure out how to verify that, we
             # can use the following instead of just saying False:
             # return 'DOCKER_HOST' in os.environ
             return False
 
         return True
     return False
 
 
 @check("debhelper", "debian packaging tools")
 def has_debhelper():
     # Some versions of dpkg say `dpkg', some say 'dpkg' (` vs ' on the first
     # quote), so just accept anything in that spot.
     dpkg = matchoutput(
         'dpkg --version', br"Debian .dpkg' package management program"
     )
     dh = matchoutput(
         'dh --help', br'dh is a part of debhelper.', ignorestatus=True
     )
     dh_py2 = matchoutput(
         'dh_python2 --help', br'other supported Python versions'
     )
     # debuild comes from the 'devscripts' package, though you might want
     # the 'build-debs' package instead, which has a dependency on devscripts.
     debuild = matchoutput(
         'debuild --help', br'to run debian/rules with given parameter'
     )
     return dpkg and dh and dh_py2 and debuild
 
 
 @check(
     "debdeps", "debian build dependencies (run dpkg-checkbuilddeps in contrib/)"
 )
 def has_debdeps():
     # just check exit status (ignoring output)
     path = '%s/../contrib/packaging/debian/control' % os.environ['TESTDIR']
     return matchoutput('dpkg-checkbuilddeps %s' % path, br'')
 
 
 @check("demandimport", "demandimport enabled")
 def has_demandimport():
     # chg disables demandimport intentionally for performance wins.
     return (not has_chg()) and os.environ.get('HGDEMANDIMPORT') != 'disable'
 
 
 # Add "py27", "py35", ... as possible feature checks. Note that there's no
 # punctuation here.
 @checkvers("py", "Python >= %s", (2.7, 3.5, 3.6, 3.7, 3.8, 3.9))
 def has_python_range(v):
     major, minor = v.split('.')[0:2]
     py_major, py_minor = sys.version_info.major, sys.version_info.minor
 
     return (py_major, py_minor) >= (int(major), int(minor))
 
 
 @check("py3", "running with Python 3.x")
 def has_py3():
     return 3 == sys.version_info[0]
 
 
 @check("py3exe", "a Python 3.x interpreter is available")
 def has_python3exe():
     return matchoutput('python3 -V', br'^Python 3.(5|6|7|8|9)')
 
 
 @check("pure", "running with pure Python code")
 def has_pure():
     return any(
         [
             os.environ.get("HGMODULEPOLICY") == "py",
             os.environ.get("HGTEST_RUN_TESTS_PURE") == "--pure",
         ]
     )
 
 
 @check("slow", "allow slow tests (use --allow-slow-tests)")
 def has_slow():
     return os.environ.get('HGTEST_SLOW') == 'slow'
 
 
 @check("hypothesis", "Hypothesis automated test generation")
 def has_hypothesis():
     try:
         import hypothesis
 
         hypothesis.given
         return True
     except ImportError:
         return False
 
 
 @check("unziplinks", "unzip(1) understands and extracts symlinks")
 def unzip_understands_symlinks():
     return matchoutput('unzip --help', br'Info-ZIP')
 
 
 @check("zstd", "zstd Python module available")
 def has_zstd():
     try:
         import mercurial.zstd
 
         mercurial.zstd.__version__
         return True
     except ImportError:
         return False
 
 
 @check("devfull", "/dev/full special file")
 def has_dev_full():
     return os.path.exists('/dev/full')
 
 
 @check("ensurepip", "ensurepip module")
 def has_ensurepip():
     try:
         import ensurepip
 
         ensurepip.bootstrap
         return True
     except ImportError:
         return False
 
 
 @check("virtualenv", "Python virtualenv support")
 def has_virtualenv():
     try:
         import virtualenv
 
         virtualenv.ACTIVATE_SH
         return True
     except ImportError:
         return False
 
 
 @check("fsmonitor", "running tests with fsmonitor")
 def has_fsmonitor():
     return 'HGFSMONITOR_TESTS' in os.environ
 
 
 @check("fuzzywuzzy", "Fuzzy string matching library")
 def has_fuzzywuzzy():
     try:
         import fuzzywuzzy
 
         fuzzywuzzy.__version__
         return True
     except ImportError:
         return False
 
 
 @check("clang-libfuzzer", "clang new enough to include libfuzzer")
 def has_clang_libfuzzer():
     mat = matchoutput('clang --version', br'clang version (\d)')
     if mat:
         # libfuzzer is new in clang 6
         return int(mat.group(1)) > 5
     return False
 
 
 @check("clang-6.0", "clang 6.0 with version suffix (libfuzzer included)")
 def has_clang60():
     return matchoutput('clang-6.0 --version', br'clang version 6\.')
 
 
 @check("xdiff", "xdiff algorithm")
 def has_xdiff():
     try:
         from mercurial import policy
 
         bdiff = policy.importmod('bdiff')
         return bdiff.xdiffblocks(b'', b'') == [(0, 0, 0, 0)]
     except (ImportError, AttributeError):
         return False
 
 
 @check('extraextensions', 'whether tests are running with extra extensions')
 def has_extraextensions():
     return 'HGTESTEXTRAEXTENSIONS' in os.environ
 
 
 def getrepofeatures():
     """Obtain set of repository features in use.
 
     HGREPOFEATURES can be used to define or remove features. It contains
     a space-delimited list of feature strings. Strings beginning with ``-``
     mean to remove.
     """
     # Default list provided by core.
     features = {
         'bundlerepo',
         'revlogstore',
         'fncache',
     }
 
     # Features that imply other features.
     implies = {
         'simplestore': ['-revlogstore', '-bundlerepo', '-fncache'],
     }
 
     for override in os.environ.get('HGREPOFEATURES', '').split(' '):
         if not override:
             continue
 
         if override.startswith('-'):
             if override[1:] in features:
                 features.remove(override[1:])
         else:
             features.add(override)
 
             for imply in implies.get(override, []):
                 if imply.startswith('-'):
                     if imply[1:] in features:
                         features.remove(imply[1:])
                 else:
                     features.add(imply)
 
     return features
 
 
 @check('reporevlogstore', 'repository using the default revlog store')
 def has_reporevlogstore():
     return 'revlogstore' in getrepofeatures()
 
 
 @check('reposimplestore', 'repository using simple storage extension')
 def has_reposimplestore():
     return 'simplestore' in getrepofeatures()
 
 
 @check('repobundlerepo', 'whether we can open bundle files as repos')
 def has_repobundlerepo():
     return 'bundlerepo' in getrepofeatures()
 
 
 @check('repofncache', 'repository has an fncache')
 def has_repofncache():
     return 'fncache' in getrepofeatures()
 
 
 @check('sqlite', 'sqlite3 module is available')
 def has_sqlite():
     try:
         import sqlite3
 
         version = sqlite3.sqlite_version_info
     except ImportError:
         return False
 
     if version < (3, 8, 3):
         # WITH clause not supported
         return False
 
     return matchoutput('sqlite3 -version', br'^3\.\d+')
 
 
 @check('vcr', 'vcr http mocking library')
 def has_vcr():
     try:
         import vcr
 
         vcr.VCR
         return True
     except (ImportError, AttributeError):
         pass
     return False
 
 
 @check('emacs', 'GNU Emacs')
 def has_emacs():
     # Our emacs lisp uses `with-eval-after-load` which is new in emacs
     # 24.4, so we allow emacs 24.4, 24.5, and 25+ (24.5 was the last
     # 24 release)
     return matchoutput('emacs --version', b'GNU Emacs 2(4.4|4.5|5|6|7|8|9)')
 
 
 @check('black', 'the black formatter for python')
 def has_black():
     blackcmd = 'black --version'
     version_regex = b'black, version ([0-9a-b.]+)'
     version = matchoutput(blackcmd, version_regex)
     sv = distutils.version.StrictVersion
     return version and sv(_strpath(version.group(1))) >= sv('19.10b0')
 
 
 @check('pytype', 'the pytype type checker')
 def has_pytype():
     pytypecmd = 'pytype --version'
     version = matchoutput(pytypecmd, b'[0-9a-b.]+')
     sv = distutils.version.StrictVersion
     return version and sv(_strpath(version.group(0))) >= sv('2019.10.17')
 
 
 @check("rustfmt", "rustfmt tool")
 def has_rustfmt():
     # We use Nightly's rustfmt due to current unstable config options.
     return matchoutput(
         '`rustup which --toolchain nightly rustfmt` --version', b'rustfmt'
     )

tests/test-highlight.t

@@ -1,1038 +1,1040 b''
 #require pygments serve
 
   $ cat <<EOF >> $HGRCPATH
   > [extensions]
   > highlight =
   > [web]
   > pygments_style = friendly
   > highlightfiles = **.py and size('<100KB')
   > EOF
   $ hg init test
   $ cd test
 
   $ filterhtml () {
   >   sed -e "s/class=\"k\"/class=\"kn\"/g" \
   >       -e "s/class=\"mf\"/class=\"mi\"/g" \
   >       -e "s/class=\"vm\"/class=\"n\"/g" \
   >       -e "s/class=\"\([cs]\)[h12]\"/class=\"\1\"/g"
   > }
 
 create random Python file to exercise Pygments
 
   $ cat <<NO_CHECK_EOF > primes.py
   > """Fun with generators. Corresponding Haskell implementation:
   > 
   > primes = 2 : sieve [3, 5..]
   >     where sieve (p:ns) = p : sieve [n | n <- ns, mod n p /= 0]
   > """
   > 
   > import itertools
   > 
   > def primes():
   >     """Generate all primes."""
   >     def sieve(ns):
   >         p = ns.next()
   >         # It is important to yield *here* in order to stop the
   >         # infinite recursion.
   >         yield p
   >         ns = itertools.ifilter(lambda n: n % p != 0, ns)
   >         for n in sieve(ns):
   >             yield n
   > 
   >     odds = itertools.ifilter(lambda i: i % 2 == 1, itertools.count())
   >     dropwhile = itertools.dropwhile
   >     return itertools.chain([2], sieve(dropwhile(lambda n: n < 3, odds)))
   > 
   > if __name__ == "__main__":
   >     import sys
   >     try:
   >         n = int(sys.argv[1])
   >     except (ValueError, IndexError):
   >         n = 10
   >     p = primes()
   >     print("The first %d primes: %s" % (n, list(itertools.islice(p, n))))
   > NO_CHECK_EOF
   $ echo >> primes.py  # to test html markup with an empty line just before EOF
   $ hg ci -Ama
   adding primes.py
 
 hg serve
 
   $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid -A access.log -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
 hgweb filerevision, html
 
   $ (get-with-headers.py localhost:$HGPORT 'file/tip/primes.py') | filterhtml
   200 Script output follows
   
   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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   <pre class="sourcelines stripes4 wrap bottomline"
        data-logurl="/log/tip/primes.py"
        data-selectabletag="SPAN"
        data-ishead="1">
   
   <span id="l1"><span class="sd">&quot;&quot;&quot;Fun with generators. Corresponding Haskell implementation:</span></span><a href="#l1"></a>
   <span id="l2"></span><a href="#l2"></a>
   <span id="l3"><span class="sd">primes = 2 : sieve [3, 5..]</span></span><a href="#l3"></a>
   <span id="l4"><span class="sd">    where sieve (p:ns) = p : sieve [n | n &lt;- ns, mod n p /= 0]</span></span><a href="#l4"></a>
   <span id="l5"><span class="sd">&quot;&quot;&quot;</span></span><a href="#l5"></a>
   <span id="l6"></span><a href="#l6"></a>
   <span id="l7"><span class="kn">import</span> <span class="nn">itertools</span></span><a href="#l7"></a>
   <span id="l8"></span><a href="#l8"></a>
   <span id="l9"><span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></span><a href="#l9"></a>
   <span id="l10">    <span class="sd">&quot;&quot;&quot;Generate all primes.&quot;&quot;&quot;</span></span><a href="#l10"></a>
   <span id="l11">    <span class="kn">def</span> <span class="nf">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></span><a href="#l11"></a>
   <span id="l12">        <span class="n">p</span> <span class="o">=</span> <span class="n">ns</span><span class="o">.</span><span class="n">next</span><span class="p">()</span></span><a href="#l12"></a>
   <span id="l13">        <span class="c"># It is important to yield *here* in order to stop the</span></span><a href="#l13"></a>
   <span id="l14">        <span class="c"># infinite recursion.</span></span><a href="#l14"></a>
   <span id="l15">        <span class="kn">yield</span> <span class="n">p</span></span><a href="#l15"></a>
   <span id="l16">        <span class="n">ns</span> <span class="o">=</span> <span class="n">itertools</span><span class="o">.</span><span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">%</span> <span class="n">p</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">ns</span><span class="p">)</span></span><a href="#l16"></a>
   <span id="l17">        <span class="kn">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="n">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></span><a href="#l17"></a>
   <span id="l18">            <span class="kn">yield</span> <span class="n">n</span></span><a href="#l18"></a>
   <span id="l19"></span><a href="#l19"></a>
   <span id="l20">    <span class="n">odds</span> <span class="o">=</span> <span class="n">itertools</span><span class="o">.</span><span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">i</span><span class="p">:</span> <span class="n">i</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">1</span><span class="p">,</span> <span class="n">itertools</span><span class="o">.</span><span class="n">count</span><span class="p">())</span></span><a href="#l20"></a>
   <span id="l21">    <span class="n">dropwhile</span> <span class="o">=</span> <span class="n">itertools</span><span class="o">.</span><span class="n">dropwhile</span></span><a href="#l21"></a>
   <span id="l22">    <span class="kn">return</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">([</span><span class="mi">2</span><span class="p">],</span> <span class="n">sieve</span><span class="p">(</span><span class="n">dropwhile</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">&lt;</span> <span class="mi">3</span><span class="p">,</span> <span class="n">odds</span><span class="p">)))</span></span><a href="#l22"></a>
   <span id="l23"></span><a href="#l23"></a>
   <span id="l24"><span class="kn">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">&quot;__main__&quot;</span><span class="p">:</span></span><a href="#l24"></a>
   <span id="l25">    <span class="kn">import</span> <span class="nn">sys</span></span><a href="#l25"></a>
   <span id="l26">    <span class="kn">try</span><span class="p">:</span></span><a href="#l26"></a>
   <span id="l27">        <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span></span><a href="#l27"></a>
   <span id="l28">    <span class="kn">except</span> <span class="p">(</span><span class="ne">ValueError</span><span class="p">,</span> <span class="ne">IndexError</span><span class="p">):</span></span><a href="#l28"></a>
   <span id="l29">        <span class="n">n</span> <span class="o">=</span> <span class="mi">10</span></span><a href="#l29"></a>
   <span id="l30">    <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></span><a href="#l30"></a>
-  <span id="l31">    <span class="kn">print</span><span class="p">(</span><span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">itertools</span><span class="o">.</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">))))</span></span><a href="#l31"></a>
+  <span id="l31">    <span class="nb">print</span><span class="p">(</span><span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">itertools</span><span class="o">.</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">))))</span></span><a href="#l31"></a> (pygments25 !)
+  <span id="l31">    <span class="kn">print</span><span class="p">(</span><span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">itertools</span><span class="o">.</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">))))</span></span><a href="#l31"></a> (no-pygments25 !)
   <span id="l32"></span><a href="#l32"></a>
   </pre>
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   <td class="source followlines-btn-parent"><a href="#l1">     1</a> <span class="sd">&quot;&quot;&quot;Fun with generators. Corresponding Haskell implementation:</span></td>
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   <td class="source followlines-btn-parent"><a href="#l2">     2</a> </td>
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   <tr id="l3" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l3">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l3">     3</a> <span class="sd">primes = 2 : sieve [3, 5..]</span></td>
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   <td class="annotate parity0">
   
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   <div>
   <a href="/annotate/687f2d169546/primes.py#l4">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l4">     4</a> <span class="sd">    where sieve (p:ns) = p : sieve [n | n &lt;- ns, mod n p /= 0]</span></td>
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   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l5">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l5">     5</a> <span class="sd">&quot;&quot;&quot;</span></td>
   </tr>
   <tr id="l6" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l6">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l6">     6</a> </td>
   </tr>
   <tr id="l7" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l7">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l7">     7</a> <span class="kn">import</span> <span class="nn">itertools</span></td>
   </tr>
   <tr id="l8" class="thisrev">
   <td class="annotate parity0">
   
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   <div>
   <a href="/annotate/687f2d169546/primes.py#l8">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l8">     8</a> </td>
   </tr>
   <tr id="l9" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l9">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l9">     9</a> <span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></td>
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   <tr id="l10" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l10">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l10">    10</a>     <span class="sd">&quot;&quot;&quot;Generate all primes.&quot;&quot;&quot;</span></td>
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   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l11">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l11">    11</a>     <span class="kn">def</span> <span class="nf">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></td>
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   <tr id="l12" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l12">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l12">    12</a>         <span class="n">p</span> <span class="o">=</span> <span class="n">ns</span><span class="o">.</span><span class="n">next</span><span class="p">()</span></td>
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   <tr id="l13" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l13">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l13">    13</a>         <span class="c"># It is important to yield *here* in order to stop the</span></td>
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   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l14">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l14">    14</a>         <span class="c"># infinite recursion.</span></td>
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   <td class="annotate parity0">
   
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   <div>
   <a href="/annotate/687f2d169546/primes.py#l15">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l15">    15</a>         <span class="kn">yield</span> <span class="n">p</span></td>
   </tr>
   <tr id="l16" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l16">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l16">    16</a>         <span class="n">ns</span> <span class="o">=</span> <span class="n">itertools</span><span class="o">.</span><span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">%</span> <span class="n">p</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">ns</span><span class="p">)</span></td>
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   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l17">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l17">    17</a>         <span class="kn">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="n">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></td>
   </tr>
   <tr id="l18" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l18">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l18">    18</a>             <span class="kn">yield</span> <span class="n">n</span></td>
   </tr>
   <tr id="l19" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l19">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l19">    19</a> </td>
   </tr>
   <tr id="l20" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l20">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l20">    20</a>     <span class="n">odds</span> <span class="o">=</span> <span class="n">itertools</span><span class="o">.</span><span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">i</span><span class="p">:</span> <span class="n">i</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">1</span><span class="p">,</span> <span class="n">itertools</span><span class="o">.</span><span class="n">count</span><span class="p">())</span></td>
   </tr>
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   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l21">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l21">    21</a>     <span class="n">dropwhile</span> <span class="o">=</span> <span class="n">itertools</span><span class="o">.</span><span class="n">dropwhile</span></td>
   </tr>
   <tr id="l22" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l22">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l22">    22</a>     <span class="kn">return</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">([</span><span class="mi">2</span><span class="p">],</span> <span class="n">sieve</span><span class="p">(</span><span class="n">dropwhile</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">&lt;</span> <span class="mi">3</span><span class="p">,</span> <span class="n">odds</span><span class="p">)))</span></td>
   </tr>
   <tr id="l23" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l23">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l23">    23</a> </td>
   </tr>
   <tr id="l24" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l24">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l24">    24</a> <span class="kn">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">&quot;__main__&quot;</span><span class="p">:</span></td>
   </tr>
   <tr id="l25" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l25">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l25">    25</a>     <span class="kn">import</span> <span class="nn">sys</span></td>
   </tr>
   <tr id="l26" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l26">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l26">    26</a>     <span class="kn">try</span><span class="p">:</span></td>
   </tr>
   <tr id="l27" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l27">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l27">    27</a>         <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span></td>
   </tr>
   <tr id="l28" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l28">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l28">    28</a>     <span class="kn">except</span> <span class="p">(</span><span class="ne">ValueError</span><span class="p">,</span> <span class="ne">IndexError</span><span class="p">):</span></td>
   </tr>
   <tr id="l29" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l29">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l29">    29</a>         <span class="n">n</span> <span class="o">=</span> <span class="mi">10</span></td>
   </tr>
   <tr id="l30" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l30">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l30">    30</a>     <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></td>
   </tr>
   <tr id="l31" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l31">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
-  <td class="source followlines-btn-parent"><a href="#l31">    31</a>     <span class="kn">print</span><span class="p">(</span><span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">itertools</span><span class="o">.</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">))))</span></td>
+  <td class="source followlines-btn-parent"><a href="#l31">    31</a>     <span class="nb">print</span><span class="p">(</span><span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">itertools</span><span class="o">.</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">))))</span></td> (pygments25 !)
+  <td class="source followlines-btn-parent"><a href="#l31">    31</a>     <span class="kn">print</span><span class="p">(</span><span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">itertools</span><span class="o">.</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">))))</span></td> (no-pygments25 !)
   </tr>
   <tr id="l32" class="thisrev">
   <td class="annotate parity0">
   
   <div class="annotate-info">
   <div>
   <a href="/annotate/687f2d169546/primes.py#l32">
   687f2d169546</a>
   a
   </div>
   <div><em>&#116;&#101;&#115;&#116;</em></div>
   <div>parents: </div>
   <a href="/diff/687f2d169546/primes.py">diff</a>
   <a href="/rev/687f2d169546">changeset</a>
   </div>
   </td>
   <td class="source followlines-btn-parent"><a href="#l32">    32</a> </td>
   </tr>
   </tbody>
   </table>
   </div>
   </div>
   </div>
   
   <script type="text/javascript" src="/static/followlines.js"></script>
   
   
   
   </body>
   </html>
   
 
 hgweb fileannotate, raw
 
   $ (get-with-headers.py localhost:$HGPORT 'annotate/tip/primes.py?style=raw') \
   >     | sed "s/test@//" > a
   $ echo "200 Script output follows" > b
   $ echo "" >> b
   $ echo "" >> b
   $ hg annotate "primes.py" >> b
   $ echo "" >> b
   $ echo "" >> b
   $ echo "" >> b
   $ echo "" >> b
   $ cmp b a || diff -u b a
 
 hgweb filerevision, raw
 
   $ (get-with-headers.py localhost:$HGPORT 'file/tip/primes.py?style=raw') \
   >     > a
   $ echo "200 Script output follows" > b
   $ echo "" >> b
   $ hg cat primes.py >> b
   $ cmp b a || diff -u b a
 
 hgweb highlightcss friendly
 
   $ get-with-headers.py localhost:$HGPORT 'highlightcss' > out
   $ head -n 4 out
   200 Script output follows
   
   /* pygments_style = friendly */
   
   $ rm out
 
 errors encountered
 
   $ cat errors.log
   $ killdaemons.py
 
 Change the pygments style
 
   $ cat > .hg/hgrc <<EOF
   > [web]
   > pygments_style = fruity
   > EOF
 
 hg serve again
 
   $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid -A access.log -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
 hgweb highlightcss fruity
 
   $ get-with-headers.py localhost:$HGPORT 'highlightcss' > out
   $ head -n 4 out
   200 Script output follows
   
   /* pygments_style = fruity */
   
   $ rm out
 
 errors encountered
 
   $ cat errors.log
   $ killdaemons.py
 
 only highlight C source files
 
   $ cat > .hg/hgrc <<EOF
   > [web]
   > highlightfiles = **.c
   > EOF
 
 hg serve again
 
   $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid -A access.log -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
 test that fileset in highlightfiles works and primes.py is not highlighted
 
   $ get-with-headers.py localhost:$HGPORT 'file/tip/primes.py' | grep 'id="l11"'
   <span id="l11">    def sieve(ns):</span><a href="#l11"></a>
 
 errors encountered
 
   $ cat errors.log
   $ cd ..
   $ hg init eucjp
   $ cd eucjp
   >>> with open('eucjp.txt', 'wb') as fh:
   ...     # Japanese kanji "Kyo"
   ...     fh.write(u'\265\376'.encode('utf-8')) and None
   $ hg ci -Ama
   adding eucjp.txt
   $ hgserveget () {
   >     killdaemons.py
   >     echo % HGENCODING="$1" hg serve
   >     HGENCODING="$1" hg serve -p $HGPORT -d -n test --pid-file=hg.pid -E errors.log
   >     cat hg.pid >> $DAEMON_PIDS
   > 
   >     echo % hgweb filerevision, html
   >     get-with-headers.py localhost:$HGPORT "file/tip/$2" \
   >         | grep '<div class="parity0 source">'
   >     echo % errors encountered
   >     cat errors.log
   > }
   $ hgserveget euc-jp eucjp.txt
   % HGENCODING=euc-jp hg serve
   % hgweb filerevision, html
   % errors encountered
   $ hgserveget utf-8 eucjp.txt
   % HGENCODING=utf-8 hg serve
   % hgweb filerevision, html
   % errors encountered
   $ hgserveget us-ascii eucjp.txt
   % HGENCODING=us-ascii hg serve
   % hgweb filerevision, html
   % errors encountered
 
 We attempt to highlight unknown files by default
 
   $ killdaemons.py
 
   $ cat > .hg/hgrc << EOF
   > [web]
   > highlightfiles = **
   > EOF
 
   $ cat > unknownfile << EOF
   > #!$PYTHON
   > def foo():
   >    pass
   > EOF
 
   $ hg add unknownfile
   $ hg commit -m unknown unknownfile
 
   $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid
   $ cat hg.pid >> $DAEMON_PIDS
 
   $ get-with-headers.py localhost:$HGPORT 'file/tip/unknownfile' | grep l2
   <span id="l2"><span class="k">def</span> <span class="nf">foo</span><span class="p">():</span></span><a href="#l2"></a>
 
 We can prevent Pygments from falling back to a non filename-based
 detection mode
 
   $ cat > .hg/hgrc << EOF
   > [web]
   > highlightfiles = **
   > highlightonlymatchfilename = true
   > EOF
 
   $ killdaemons.py
   $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid
   $ cat hg.pid >> $DAEMON_PIDS
   $ get-with-headers.py localhost:$HGPORT 'file/tip/unknownfile' | grep l2
   <span id="l2">def foo():</span><a href="#l2"></a>
 
   $ cd ..