mirror of
https://github.com/morpheus65535/bazarr
synced 2024-12-26 09:37:25 +00:00
216 lines
7.4 KiB
Python
216 lines
7.4 KiB
Python
"""
|
|
Regex for URIs
|
|
|
|
These regex are directly derived from the collected ABNF in RFC3986
|
|
(except for DIGIT, ALPHA and HEXDIG, defined by RFC2234).
|
|
|
|
They should be processed with re.VERBOSE.
|
|
|
|
Thanks Mark Nottingham for this code - https://gist.github.com/138549
|
|
"""
|
|
from __future__ import unicode_literals
|
|
|
|
import re
|
|
|
|
# basics
|
|
|
|
DIGIT = r"[\x30-\x39]"
|
|
|
|
ALPHA = r"[\x41-\x5A\x61-\x7A]"
|
|
|
|
HEXDIG = r"[\x30-\x39A-Fa-f]"
|
|
|
|
# pct-encoded = "%" HEXDIG HEXDIG
|
|
pct_encoded = r" %% %(HEXDIG)s %(HEXDIG)s" % locals()
|
|
|
|
# unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
|
|
unreserved = r"(?: %(ALPHA)s | %(DIGIT)s | \- | \. | _ | ~ )" % locals()
|
|
|
|
# gen-delims = ":" / "/" / "?" / "#" / "[" / "]" / "@"
|
|
gen_delims = r"(?: : | / | \? | \# | \[ | \] | @ )"
|
|
|
|
# sub-delims = "!" / "$" / "&" / "'" / "(" / ")"
|
|
# / "*" / "+" / "," / ";" / "="
|
|
sub_delims = r"""(?: ! | \$ | & | ' | \( | \) |
|
|
\* | \+ | , | ; | = )"""
|
|
|
|
# pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
|
|
pchar = r"(?: %(unreserved)s | %(pct_encoded)s | %(sub_delims)s | : | @ )" % locals(
|
|
)
|
|
|
|
# reserved = gen-delims / sub-delims
|
|
reserved = r"(?: %(gen_delims)s | %(sub_delims)s )" % locals()
|
|
|
|
|
|
# scheme
|
|
|
|
# scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
|
|
scheme = r"%(ALPHA)s (?: %(ALPHA)s | %(DIGIT)s | \+ | \- | \. )*" % locals()
|
|
|
|
|
|
# authority
|
|
|
|
# dec-octet = DIGIT ; 0-9
|
|
# / %x31-39 DIGIT ; 10-99
|
|
# / "1" 2DIGIT ; 100-199
|
|
# / "2" %x30-34 DIGIT ; 200-249
|
|
# / "25" %x30-35 ; 250-255
|
|
dec_octet = r"""(?: %(DIGIT)s |
|
|
[\x31-\x39] %(DIGIT)s |
|
|
1 %(DIGIT)s{2} |
|
|
2 [\x30-\x34] %(DIGIT)s |
|
|
25 [\x30-\x35]
|
|
)
|
|
""" % locals()
|
|
|
|
# IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet
|
|
IPv4address = r"%(dec_octet)s \. %(dec_octet)s \. %(dec_octet)s \. %(dec_octet)s" % locals(
|
|
)
|
|
|
|
# h16 = 1*4HEXDIG
|
|
h16 = r"(?: %(HEXDIG)s ){1,4}" % locals()
|
|
|
|
# ls32 = ( h16 ":" h16 ) / IPv4address
|
|
ls32 = r"(?: (?: %(h16)s : %(h16)s ) | %(IPv4address)s )" % locals()
|
|
|
|
# IPv6address = 6( h16 ":" ) ls32
|
|
# / "::" 5( h16 ":" ) ls32
|
|
# / [ h16 ] "::" 4( h16 ":" ) ls32
|
|
# / [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
|
|
# / [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32
|
|
# / [ *3( h16 ":" ) h16 ] "::" h16 ":" ls32
|
|
# / [ *4( h16 ":" ) h16 ] "::" ls32
|
|
# / [ *5( h16 ":" ) h16 ] "::" h16
|
|
# / [ *6( h16 ":" ) h16 ] "::"
|
|
IPv6address = r"""(?: (?: %(h16)s : ){6} %(ls32)s |
|
|
:: (?: %(h16)s : ){5} %(ls32)s |
|
|
%(h16)s :: (?: %(h16)s : ){4} %(ls32)s |
|
|
(?: %(h16)s : ) %(h16)s :: (?: %(h16)s : ){3} %(ls32)s |
|
|
(?: %(h16)s : ){2} %(h16)s :: (?: %(h16)s : ){2} %(ls32)s |
|
|
(?: %(h16)s : ){3} %(h16)s :: %(h16)s : %(ls32)s |
|
|
(?: %(h16)s : ){4} %(h16)s :: %(ls32)s |
|
|
(?: %(h16)s : ){5} %(h16)s :: %(h16)s |
|
|
(?: %(h16)s : ){6} %(h16)s ::
|
|
)
|
|
""" % locals()
|
|
|
|
# IPvFuture = "v" 1*HEXDIG "." 1*( unreserved / sub-delims / ":" )
|
|
IPvFuture = r"v %(HEXDIG)s+ \. (?: %(unreserved)s | %(sub_delims)s | : )+" % locals()
|
|
|
|
# IP-literal = "[" ( IPv6address / IPvFuture ) "]"
|
|
IP_literal = r"\[ (?: %(IPv6address)s | %(IPvFuture)s ) \]" % locals()
|
|
|
|
# reg-name = *( unreserved / pct-encoded / sub-delims )
|
|
reg_name = r"(?: %(unreserved)s | %(pct_encoded)s | %(sub_delims)s )*" % locals()
|
|
|
|
# userinfo = *( unreserved / pct-encoded / sub-delims / ":" )
|
|
userinfo = r"(?: %(unreserved)s | %(pct_encoded)s | %(sub_delims)s | : )" % locals(
|
|
)
|
|
|
|
# host = IP-literal / IPv4address / reg-name
|
|
host = r"(?: %(IP_literal)s | %(IPv4address)s | %(reg_name)s )" % locals()
|
|
|
|
# port = *DIGIT
|
|
port = r"(?: %(DIGIT)s )*" % locals()
|
|
|
|
# authority = [ userinfo "@" ] host [ ":" port ]
|
|
authority = r"(?: %(userinfo)s @)? %(host)s (?: : %(port)s)?" % locals()
|
|
|
|
# Path
|
|
|
|
# segment = *pchar
|
|
segment = r"%(pchar)s*" % locals()
|
|
|
|
# segment-nz = 1*pchar
|
|
segment_nz = r"%(pchar)s+" % locals()
|
|
|
|
# segment-nz-nc = 1*( unreserved / pct-encoded / sub-delims / "@" )
|
|
# ; non-zero-length segment without any colon ":"
|
|
segment_nz_nc = r"(?: %(unreserved)s | %(pct_encoded)s | %(sub_delims)s | @ )+" % locals()
|
|
|
|
# path-abempty = *( "/" segment )
|
|
path_abempty = r"(?: / %(segment)s )*" % locals()
|
|
|
|
# path-absolute = "/" [ segment-nz *( "/" segment ) ]
|
|
path_absolute = r"/ (?: %(segment_nz)s (?: / %(segment)s )* )?" % locals()
|
|
|
|
# path-noscheme = segment-nz-nc *( "/" segment )
|
|
path_noscheme = r"%(segment_nz_nc)s (?: / %(segment)s )*" % locals()
|
|
|
|
# path-rootless = segment-nz *( "/" segment )
|
|
path_rootless = r"%(segment_nz)s (?: / %(segment)s )*" % locals()
|
|
|
|
# path-empty = 0<pchar>
|
|
path_empty = r"" # FIXME
|
|
|
|
# path = path-abempty ; begins with "/" or is empty
|
|
# / path-absolute ; begins with "/" but not "//"
|
|
# / path-noscheme ; begins with a non-colon segment
|
|
# / path-rootless ; begins with a segment
|
|
# / path-empty ; zero characters
|
|
path = r"""(?: %(path_abempty)s |
|
|
%(path_absolute)s |
|
|
%(path_noscheme)s |
|
|
%(path_rootless)s |
|
|
%(path_empty)s
|
|
)
|
|
""" % locals()
|
|
|
|
### Query and Fragment
|
|
|
|
# query = *( pchar / "/" / "?" )
|
|
query = r"(?: %(pchar)s | / | \? )*" % locals()
|
|
|
|
# fragment = *( pchar / "/" / "?" )
|
|
fragment = r"(?: %(pchar)s | / | \? )*" % locals()
|
|
|
|
# URIs
|
|
|
|
# hier-part = "//" authority path-abempty
|
|
# / path-absolute
|
|
# / path-rootless
|
|
# / path-empty
|
|
hier_part = r"""(?: (?: // %(authority)s %(path_abempty)s ) |
|
|
%(path_absolute)s |
|
|
%(path_rootless)s |
|
|
%(path_empty)s
|
|
)
|
|
""" % locals()
|
|
|
|
# relative-part = "//" authority path-abempty
|
|
# / path-absolute
|
|
# / path-noscheme
|
|
# / path-empty
|
|
relative_part = r"""(?: (?: // %(authority)s %(path_abempty)s ) |
|
|
%(path_absolute)s |
|
|
%(path_noscheme)s |
|
|
%(path_empty)s
|
|
)
|
|
""" % locals()
|
|
|
|
# relative-ref = relative-part [ "?" query ] [ "#" fragment ]
|
|
relative_ref = r"%(relative_part)s (?: \? %(query)s)? (?: \# %(fragment)s)?" % locals(
|
|
)
|
|
|
|
# URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
|
|
URI = r"^(?: %(scheme)s : %(hier_part)s (?: \? %(query)s )? (?: \# %(fragment)s )? )$" % locals(
|
|
)
|
|
|
|
# URI-reference = URI / relative-ref
|
|
URI_reference = r"^(?: %(URI)s | %(relative_ref)s )$" % locals()
|
|
|
|
# absolute-URI = scheme ":" hier-part [ "?" query ]
|
|
absolute_URI = r"^(?: %(scheme)s : %(hier_part)s (?: \? %(query)s )? )$" % locals(
|
|
)
|
|
|
|
|
|
def is_uri(uri):
|
|
return re.match(URI, uri, re.VERBOSE)
|
|
|
|
|
|
def is_uri_reference(uri):
|
|
return re.match(URI_reference, uri, re.VERBOSE)
|
|
|
|
|
|
def is_absolute_uri(uri):
|
|
return re.match(absolute_URI, uri, re.VERBOSE)
|