Destructive form of merge
.
require 'uri' uri = URI.parse("http://my.example.com") uri.merge!("/main.rbx?page=1") uri.to_s # => "http://my.example.com/main.rbx?page=1"
Merges two URIs.
require 'uri' uri = URI.parse("http://my.example.com") uri.merge("/main.rbx?page=1") # => "http://my.example.com/main.rbx?page=1"
Returns attributes.
Setter for attributes val
.
uri
Parses uri
and constructs either matching URI
scheme object (File
, FTP
, HTTP
, HTTPS
, LDAP
, LDAPS
, or MailTo
) or URI::Generic
.
p = URI::Parser.new p.parse("ldap://ldap.example.com/dc=example?user=john") #=> #<URI::LDAP ldap://ldap.example.com/dc=example?user=john>
uri
Parses uri
and constructs either matching URI
scheme object (File
, FTP
, HTTP
, HTTPS
, LDAP
, LDAPS
, or MailTo
) or URI::Generic
.
p = URI::Parser.new p.parse("ldap://ldap.example.com/dc=example?user=john") #=> #<URI::LDAP ldap://ldap.example.com/dc=example?user=john>
Updates the database with multiple values from the specified object. Takes any object which implements the each_pair
method, including Hash
and DBM
objects.
Returns self
.
Returns true
if stat terminated because of an uncaught signal.
Returns the least significant eight bits of the return code of stat. Only available if exited?
is true
.
fork { } #=> 26572 Process.wait #=> 26572 $?.exited? #=> true $?.exitstatus #=> 0 fork { exit 99 } #=> 26573 Process.wait #=> 26573 $?.exited? #=> true $?.exitstatus #=> 99
Wakes up the first thread in line waiting for this lock.
Returns the length of the queue.
Returns the length of the queue.
Returns the replacement string.
ec = Encoding::Converter.new("euc-jp", "us-ascii") p ec.replacement #=> "?" ec = Encoding::Converter.new("euc-jp", "utf-8") p ec.replacement #=> "\uFFFD"
Sets the replacement string.
ec = Encoding::Converter.new("utf-8", "us-ascii", :undef => :replace) ec.replacement = "<undef>" p ec.convert("a \u3042 b") #=> "a <undef> b"
Parses the given string into an abstract syntax tree, returning the root node of that tree.
RubyVM::AbstractSyntaxTree.parse("x = 1 + 2") # => #<RubyVM::AbstractSyntaxTree::Node:SCOPE@1:0-1:9>
If keep_script_lines: true
option is provided, the text of the parsed source is associated with nodes and is available via Node#script_lines
.
If keep_tokens: true
option is provided, Node#tokens
are populated.
SyntaxError
is raised if the given string is invalid syntax. To overwrite this behavior, error_tolerant: true
can be provided. In this case, the parser will produce a tree where expressions with syntax errors would be represented by Node
with type=:ERROR
.
root = RubyVM::AbstractSyntaxTree.parse("x = 1; p(x; y=2") # <internal:ast>:33:in `parse': syntax error, unexpected ';', expecting ')' (SyntaxError) # x = 1; p(x; y=2 # ^ root = RubyVM::AbstractSyntaxTree.parse("x = 1; p(x; y=2", error_tolerant: true) # (SCOPE@1:0-1:15 # tbl: [:x, :y] # args: nil # body: (BLOCK@1:0-1:15 (LASGN@1:0-1:5 :x (LIT@1:4-1:5 1)) (ERROR@1:7-1:11) (LASGN@1:12-1:15 :y (LIT@1:14-1:15 2)))) root.children.last.children # [(LASGN@1:0-1:5 :x (LIT@1:4-1:5 1)), # (ERROR@1:7-1:11), # (LASGN@1:12-1:15 :y (LIT@1:14-1:15 2))]
Note that parsing continues even after the errored expresion.
Escape
only the tags of certain HTML elements in string
.
Takes an element or elements or array of elements. Each element is specified by the name of the element, without angle brackets. This matches both the start and the end tag of that element. The attribute list of the open tag will also be escaped (for instance, the double-quotes surrounding attribute values).
print CGI.escapeElement('<BR><A HREF="url"></A>', "A", "IMG") # "<BR><A HREF="url"></A>" print CGI.escapeElement('<BR><A HREF="url"></A>', ["A", "IMG"]) # "<BR><A HREF="url"></A>"
Undo escaping such as that done by CGI.escapeElement()
print CGI.unescapeElement( CGI.escapeHTML('<BR><A HREF="url"></A>'), "A", "IMG") # "<BR><A HREF="url"></A>" print CGI.unescapeElement( CGI.escapeHTML('<BR><A HREF="url"></A>'), ["A", "IMG"]) # "<BR><A HREF="url"></A>"
Updates the digest using a given string and returns self.
The update() method and the left-shift operator are overridden by each implementation subclass. (One should be an alias for the other)
Returns digest_obj.digest_length().
Construct a new class given a C:
class klass
(CUnion
, CStruct
, or other that provide an entity_class)
types
(Fiddle::TYPE_INT, Fiddle::TYPE_SIZE_T, etc., see the C types constants)
corresponding members
Fiddle::Importer#struct
and Fiddle::Importer#union
wrap this functionality in an easy-to-use manner.
Examples:
require 'fiddle/struct' require 'fiddle/cparser' include Fiddle::CParser types, members = parse_struct_signature(['int i','char c']) MyStruct = Fiddle::CStructBuilder.create(Fiddle::CUnion, types, members) MyStruct.malloc(Fiddle::RUBY_FREE) do |obj| ... end obj = MyStruct.malloc(Fiddle::RUBY_FREE) begin ... ensure obj.call_free end obj = MyStruct.malloc begin ... ensure Fiddle.free obj.to_ptr end
Construct a new class given a C:
class klass
(CUnion
, CStruct
, or other that provide an entity_class)
types
(Fiddle::TYPE_INT, Fiddle::TYPE_SIZE_T, etc., see the C types constants)
corresponding members
Fiddle::Importer#struct
and Fiddle::Importer#union
wrap this functionality in an easy-to-use manner.
Examples:
require 'fiddle/struct' require 'fiddle/cparser' include Fiddle::CParser types, members = parse_struct_signature(['int i','char c']) MyStruct = Fiddle::CStructBuilder.create(Fiddle::CUnion, types, members) MyStruct.malloc(Fiddle::RUBY_FREE) do |obj| ... end obj = MyStruct.malloc(Fiddle::RUBY_FREE) begin ... ensure obj.call_free end obj = MyStruct.malloc begin ... ensure Fiddle.free obj.to_ptr end
Similar to read, but raises EOFError
at end of string instead of returning nil
, as well as IO#sysread
does.
Reads at most maxlen bytes from the stream. If buf is provided it must reference a string which will receive the data.
See IO#readpartial
for full details.