Looks ahead to see if the pattern exists anywhere in the string, without advancing the scan pointer. This predicates whether a scan_until will return a value.
s = StringScanner.new('test string') s.exist? /s/ # -> 3 s.scan /test/ # -> "test" s.exist? /s/ # -> 2 s.exist? /e/ # -> nil
Set the scan pointer to the previous position. Only one previous position is remembered, and it changes with each scanning operation.
s = StringScanner.new('test string') s.scan(/\w+/) # => "test" s.unscan s.scan(/../) # => "te" s.scan(/\d/) # => nil s.unscan # ScanError: unscan failed: previous match record not exist
Returns a string that represents the StringScanner object, showing:
the current position
the size of the string
the characters surrounding the scan pointer
s = StringScanner.new(“Fri Dec 12 1975 14:39”) s.inspect # -> ‘#<StringScanner 0/21 @ “Fri D…”>’ s.scan_until /12/ # -> “Fri Dec 12” s.inspect # -> ‘#<StringScanner 10/21 “…ec 12” @ “ 1975…”>’
Sets current codepage. The WIN32OLE.codepage is initialized according to Encoding.default_internal. If Encoding.default_internal is nil then WIN32OLE.codepage is initialized according to Encoding.default_external.
WIN32OLE.codepage = WIN32OLE::CP_UTF8 WIN32OLE.codepage = 65001
Returns help string of OLE method. If the help string is not found, then the method returns nil.
tobj = WIN32OLE_TYPE.new('Microsoft Internet Controls', 'IWebBrowser') method = WIN32OLE_METHOD.new(tobj, 'Navigate') puts method.helpstring # => Navigates to a URL or file.
Returns the method name with class name.
Returns true if argument is optional.
tobj = WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'Workbook') method = WIN32OLE_METHOD.new(tobj, 'SaveAs') param1 = method.params[0] puts "#{param1.name} #{param1.optional?}" # => Filename true
Returns the parameter name with class name. If the parameter has default value, then returns name=value string with class name.
Returns the OLE struct name and member name and the value of member
If COM server in VB.NET ComServer project is the following:
Imports System.Runtime.InteropServices
Public Class ComClass
<MarshalAs(UnmanagedType.BStr)> _
Public title As String
Public cost As Integer
End Class
then
srver = WIN32OLE.new('ComServer.ComClass') obj = WIN32OLE_RECORD.new('Book', server) obj.inspect # => <WIN32OLE_RECORD(ComClass) {"title" => nil, "cost" => nil}>
Returns help string.
tobj = WIN32OLE_TYPE.new('Microsoft Internet Controls', 'IWebBrowser') puts tobj.helpstring # => Web Browser interface
Returns the type name with class name.
ie = WIN32OLE.new('InternetExplorer.Application')
ie.ole_type.inspect => #<WIN32OLE_TYPE:IWebBrowser2>
Returns the type library name with class name.
tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library') tlib.inspect # => "<#WIN32OLE_TYPELIB:Microsoft Excel 9.0 Object Library>"
Returns the OLE variable name and the value with class name.
Return the contents of this hash as a string.
h = { "c" => 300, "a" => 100, "d" => 400, "c" => 300 } h.to_s #=> "{\"c\"=>300, \"a\"=>100, \"d\"=>400}"
Returns a new hash with the nil values/key pairs removed
h = { a: 1, b: false, c: nil } h.compact #=> { a: 1, b: false } h #=> { a: 1, b: false, c: nil }
Removes all nil values from the hash. Returns nil if no changes were made, otherwise returns the hash.
h = { a: 1, b: false, c: nil } h.compact! #=> { a: 1, b: false }
Returns the contents of the environment as a String.
This is a deprecated alias for each_codepoint.
Returns “ARGF”.
Returns a Hash containing implementation-dependent counters inside the VM.
This hash includes information about method/constant cache serials:
{
:global_method_state=>251,
:global_constant_state=>481,
:class_serial=>9029
}
The contents of the hash are implementation specific and may be changed in the future.
This method is only expected to work on C Ruby.
Synonym for $stdin.
Synonym for $stdout.
Returns a simplified description of the key CSV attributes in an ASCII compatible String.
Start tracing
Tracer.on # code to trace here Tracer.off
You can also pass a block:
Tracer.on { # trace everything in this block }