hacks/caller_helpers

Public Methods

caller_file_pathname(filename)

Return the full pathname of a file, relative to $initial_directory.

TODO: The user must not chdir to an alternate directory before requiring this file.

TODO: This does not check to see if the file does not exist.

TODO: This does not check to see if the file is a shared object.

TODO: This does not check to see if the file is "(eval)".

Returns: the full pathname of $0, or nil if it cannot be determined.

parse_caller(caller_str)

Parse a caller string and break it into its components.

Note: If the user decides to redefine caller() to output data in a different format, then the results will be undefined.

Returns: file (String), lineno (Integer), method (Symbol)

caller_line(level=0)

Return a string representing the line at the given caller level.

level	the level of the line desired, relative to the the method that called caller_line.

Returns: a string holding the contents of the desired line.