Example 1: Extracting the parts of a file name

This program uses the file functions to extract the directory name, the base name, the root name, and the file extension:

IMPORT os
MAIN
  DISPLAY "Dir name   = ", os.Path.dirname(arg_val(1))
  DISPLAY "Base name  = ", os.Path.basename(arg_val(1))
  DISPLAY "Root name  = ", os.Path.rootname(arg_val(1))
  DISPLAY "Extension  = ", os.Path.extension(arg_val(1))
END MAIN

Example results:

Table 1. Example results
Path	os.Path.dirname	os.Path.basename	os.Path.rootname	os.Path.extension
.	.	.		NULL
..	.	..	.	NULL
/	/	/	/	NULL
/usr/lib	/usr	lib	/usr/lib	NULL
/usr/	/	usr	/usr/	NULL
usr	.	usr	usr	NULL
file.xx	.	file.xx	file	xx
/tmp.yy/file.xx	/tmp.yy	file.xx	/tmp.yy/file	xx
/tmp.yy/file.xx.yy	/tmp.yy	file.xx.yy	/tmp.yy/file.xx	yy
/tmp.yy/	/	tmp.yy	/tmp.yy/	NULL
/tmp.yy/.	/tmp.yy	.	/tmp.yy/	NULL

These examples use UNIX™ file names. On Windows™ the result would be different, as the file name separator is a backslash (\).