Returns the current line number in strio. The stringio must be opened for reading. lineno counts the number of times gets is called, rather than the number of newlines encountered. The two values will differ if gets is called with a separator other than newline. See also the $. variable.
Manually sets the current line number to the given value. $. is updated only on the next read.
Positions strio to the beginning of input, resetting lineno to zero.
This is a deprecated alias for each_line.
This is a deprecated alias for each_codepoint.
Pushes back one character (passed as a parameter) onto strio such that a subsequent buffered read will return it. There is no limitation for multiple pushbacks including pushing back behind the beginning of the buffer string.
Appends the given string to the underlying buffer string of strio. The stream must be opened for writing. If the argument is not a string, it will be converted to a string using to_s. Returns the number of bytes written. See IO#write.
Returns the size of the buffer string.
Truncates the buffer string to at most integer bytes. The strio must be opened for writing.
Set the scan pointer to the end of the string and clear matching data.
Returns the byte position of the scan pointer. In the ‘reset’ position, this value is zero. In the ‘terminated’ position (i.e. the string is exhausted), this value is the bytesize of the string.
In short, it’s a 0-based index into bytes of the string.
s = StringScanner.new('test string') s.pos # -> 0 s.scan_until /str/ # -> "test str" s.pos # -> 8 s.terminate # -> #<StringScanner fin> s.pos # -> 11
Set the byte position of the scan pointer.
s = StringScanner.new('test string') s.pos = 7 # -> 7 s.rest # -> "ring"
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
Returns true iff there is more data in the string. See eos?. This method is obsolete; use eos? instead.
s = StringScanner.new('test string') s.eos? # These two s.rest? # are opposites.
Returns the “rest” of the string (i.e. everything after the scan pointer). If there is no more data (eos? = true), it returns "".
s.restsize is equivalent to s.rest_size. This method is obsolete; use rest_size instead.
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…”>’
Runs OLE method. The first argument specifies the method name of OLE Automation object. The others specify argument of the method. If you can not execute method directly, then use this method instead.
excel = WIN32OLE.new('Excel.Application') excel.invoke('Quit') # => same as excel.Quit
Runs the early binding method. The 1st argument specifies dispatch ID, the 2nd argument specifies the array of arguments, the 3rd argument specifies the array of the type of arguments.
excel = WIN32OLE.new('Excel.Application') excel._invoke(302, [], []) # same effect as excel.Quit
Returns the method name with class name.
Returns true if the parameter is input.
tobj = WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'Workbook') method = WIN32OLE_METHOD.new(tobj, 'SaveAs') param1 = method.params[0] puts param1.input? # => true
Returns the parameter name with class name. If the parameter has default value, then returns name=value string with class name.