Returns true
or false
based on whether a match is found for self
and pattern
.
Note: does not update Global Variables at Regexp
.
Computes regexp
by converting pattern
(if not already a Regexp
).
regexp = Regexp.new(pattern)
Returns true
if self+.match(regexp)
returns a MatchData
object, false
otherwise:
'foo'.match?(/o/) # => true 'foo'.match?('o') # => true 'foo'.match?(/x/) # => false
If Integer
argument offset
is given, the search begins at index offset
:
'foo'.match?('f', 1) # => false 'foo'.match?('o', 1) # => true
Returns true if path
matches against pattern
. The pattern is not a regular expression; instead it follows rules similar to shell filename globbing. It may contain the following metacharacters:
*
Matches any file. Can be restricted by other values in the glob. Equivalent to /.*/x
in regexp.
*
Matches all regular files
c*
Matches all files beginning with c
*c
Matches all files ending with c
*c*
Matches all files that have c
in them (including at the beginning or end).
To match hidden files (that start with a .
) set the File::FNM_DOTMATCH flag.
**
Matches directories recursively or files expansively.
?
Matches any one character. Equivalent to /.{1}/
in regexp.
[set]
Matches any one character in set
. Behaves exactly like character sets in Regexp
, including set negation ([^a-z]
).
\
Escapes the next metacharacter.
{a,b}
Matches pattern a and pattern b if File::FNM_EXTGLOB flag is enabled. Behaves like a Regexp
union ((?:a|b)
).
flags
is a bitwise OR of the FNM_XXX
constants. The same glob pattern and flags are used by Dir::glob
.
Examples:
File.fnmatch('cat', 'cat') #=> true # match entire string File.fnmatch('cat', 'category') #=> false # only match partial string File.fnmatch('c{at,ub}s', 'cats') #=> false # { } isn't supported by default File.fnmatch('c{at,ub}s', 'cats', File::FNM_EXTGLOB) #=> true # { } is supported on FNM_EXTGLOB File.fnmatch('c?t', 'cat') #=> true # '?' match only 1 character File.fnmatch('c??t', 'cat') #=> false # ditto File.fnmatch('c*', 'cats') #=> true # '*' match 0 or more characters File.fnmatch('c*t', 'c/a/b/t') #=> true # ditto File.fnmatch('ca[a-z]', 'cat') #=> true # inclusive bracket expression File.fnmatch('ca[^t]', 'cat') #=> false # exclusive bracket expression ('^' or '!') File.fnmatch('cat', 'CAT') #=> false # case sensitive File.fnmatch('cat', 'CAT', File::FNM_CASEFOLD) #=> true # case insensitive File.fnmatch('cat', 'CAT', File::FNM_SYSCASE) #=> true or false # depends on the system default File.fnmatch('?', '/', File::FNM_PATHNAME) #=> false # wildcard doesn't match '/' on FNM_PATHNAME File.fnmatch('*', '/', File::FNM_PATHNAME) #=> false # ditto File.fnmatch('[/]', '/', File::FNM_PATHNAME) #=> false # ditto File.fnmatch('\?', '?') #=> true # escaped wildcard becomes ordinary File.fnmatch('\a', 'a') #=> true # escaped ordinary remains ordinary File.fnmatch('\a', '\a', File::FNM_NOESCAPE) #=> true # FNM_NOESCAPE makes '\' ordinary File.fnmatch('[\?]', '?') #=> true # can escape inside bracket expression File.fnmatch('*', '.profile') #=> false # wildcard doesn't match leading File.fnmatch('*', '.profile', File::FNM_DOTMATCH) #=> true # period by default. File.fnmatch('.*', '.profile') #=> true File.fnmatch('**/*.rb', 'main.rb') #=> false File.fnmatch('**/*.rb', './main.rb') #=> false File.fnmatch('**/*.rb', 'lib/song.rb') #=> true File.fnmatch('**.rb', 'main.rb') #=> true File.fnmatch('**.rb', './main.rb') #=> false File.fnmatch('**.rb', 'lib/song.rb') #=> true File.fnmatch('*', 'dave/.profile') #=> true File.fnmatch('**/foo', 'a/b/c/foo', File::FNM_PATHNAME) #=> true File.fnmatch('**/foo', '/a/b/c/foo', File::FNM_PATHNAME) #=> true File.fnmatch('**/foo', 'c:/a/b/c/foo', File::FNM_PATHNAME) #=> true File.fnmatch('**/foo', 'a/.b/c/foo', File::FNM_PATHNAME) #=> false File.fnmatch('**/foo', 'a/.b/c/foo', File::FNM_PATHNAME | File::FNM_DOTMATCH) #=> true
Returns the current umask value for this process. If the optional argument is given, set the umask to that value and return the previous value. Umask values are subtracted from the default permissions, so a umask of 0222
would make a file read-only for everyone.
File.umask(0006) #=> 18 File.umask #=> 6
Return the matchee associated with this NoMatchingPatternKeyError
exception.
Returns a hash of values parsed from string
, which should be a valid XML date format:
d = Date.new(2001, 2, 3) s = d.xmlschema # => "2001-02-03" Date._xmlschema(s) # => {:year=>2001, :mon=>2, :mday=>3}
See argument limit.
Related: Date.xmlschema
(returns a Date object).
Returns a new Date object with values parsed from string
, which should be a valid XML date format:
d = Date.new(2001, 2, 3) s = d.xmlschema # => "2001-02-03" Date.xmlschema(s) # => #<Date: 2001-02-03>
See:
Argument start.
Argument limit.
Related: Date._xmlschema
(returns a hash).
Equivalent to strftime
with argument '%Y-%m-%d'
(or its shorthand form '%F'
);
Date.new(2001, 2, 3).iso8601 # => "2001-02-03"
Creates a new DateTime
object by parsing from a string according to some typical XML Schema formats.
DateTime.xmlschema('2001-02-03T04:05:06+07:00') #=> #<DateTime: 2001-02-03T04:05:06+07:00 ...>
Raise an ArgumentError
when the string length is longer than limit. You can stop this check by passing limit: nil
, but note that it may take a long time to parse.
This method is equivalent to strftime(‘%FT%T%:z’). The optional argument n
is the number of digits for fractional seconds.
DateTime.parse('2001-02-03T04:05:06.123456789+07:00').iso8601(9) #=> "2001-02-03T04:05:06.123456789+07:00"
Parses time
as a dateTime defined by the XML Schema and converts it to a Time
object. The format is a restricted version of the format defined by ISO 8601.
ArgumentError
is raised if time
is not compliant with the format or if the Time
class cannot represent the specified time.
See xmlschema
for more information on this format.
require 'time' Time.xmlschema("2011-10-05T22:26:12-04:00") #=> 2011-10-05 22:26:12-04:00
You must require ‘time’ to use this method.
Returns a string which represents the time as a dateTime defined by XML Schema:
CCYY-MM-DDThh:mm:ssTZD CCYY-MM-DDThh:mm:ss.sssTZD
where TZD is Z or [+-]hh:mm.
If self is a UTC time, Z is used as TZD. [+-]hh:mm is used otherwise.
fraction_digits
specifies a number of digits to use for fractional seconds. Its default value is 0.
require 'time' t = Time.now t.iso8601 # => "2011-10-05T22:26:12-04:00"
You must require ‘time’ to use this method.
With no block given, returns the MatchData
object that describes the match, if any, or nil
if none; the search begins at the given character offset
in string
:
/abra/.match('abracadabra') # => #<MatchData "abra"> /abra/.match('abracadabra', 4) # => #<MatchData "abra"> /abra/.match('abracadabra', 8) # => nil /abra/.match('abracadabra', 800) # => nil string = "\u{5d0 5d1 5e8 5d0}cadabra" /abra/.match(string, 7) #=> #<MatchData "abra"> /abra/.match(string, 8) #=> nil /abra/.match(string.b, 8) #=> #<MatchData "abra">
With a block given, calls the block if and only if a match is found; returns the block’s value:
/abra/.match('abracadabra') {|matchdata| p matchdata } # => #<MatchData "abra"> /abra/.match('abracadabra', 4) {|matchdata| p matchdata } # => #<MatchData "abra"> /abra/.match('abracadabra', 8) {|matchdata| p matchdata } # => nil /abra/.match('abracadabra', 8) {|marchdata| fail 'Cannot happen' } # => nil
Output (from the first two blocks above):
#<MatchData "abra"> #<MatchData "abra"> /(.)(.)(.)/.match("abc")[2] # => "b" /(.)(.)/.match("abc", 1)[2] # => "c"
Returns true
or false
to indicate whether the regexp is matched or not without updating $~ and other related variables. If the second parameter is present, it specifies the position in the string to begin the search.
/R.../.match?("Ruby") # => true /R.../.match?("Ruby", 1) # => false /P.../.match?("Ruby") # => false $& # => nil
Equivalent to self.to_s.match
, including possible updates to global variables; see String#match
.
Equivalent to sym.to_s.match?
; see String#match
.
Tests whether the given pattern
is matched from the current scan pointer. Returns the length of the match, or nil
. The scan pointer is not advanced.
s = StringScanner.new('test string') p s.match?(/\w+/) # -> 4 p s.match?(/\w+/) # -> 4 p s.match?("test") # -> 4 p s.match?(/\s+/) # -> nil
Returns true
if and only if the last match was successful.
s = StringScanner.new('test string') s.match?(/\w+/) # => 4 s.matched? # => true s.match?(/\d+/) # => nil s.matched? # => false
Returns the last matched string.
s = StringScanner.new('test string') s.match?(/\w+/) # -> 4 s.matched # -> "test"
Returns a new ipaddr built by masking IP address with the given prefixlen/netmask. (e.g. 8, 64, “255.255.255.0”, etc.)