find_include_file [function]

find_include_file( string file )

Find the include file according to SGS_PATH.

• File is searched according to the semicolon-separated pattern list specified in the global variable SGS_PATH.
  • | - replaced with calling file's directory.
  • @ - replaced with process directory.
  • ? - replaced with file.
• A path to file is only returned if the file exists.