OutputHandler

class ampl::OutputHandler

Implement this interface to handle the outputs from the calls to any function that causes the underlying AMPL interpreter to display a message.

Note that errors and warnings are not passed through this interface, see ampl::ErrorHandler for more information.

Public Functions

virtual void output(output::Kind kind, const char *output) = 0

This method is called when AMPL sends some output derived from executing a statement.

Parameters

• kind -

  kind of the output of the AMPL interpreter

• output -

  text of the output by the AMPL interpreter

enum ampl::output::Kind

Represents the type of the output coming from the interpreter

Values:

WAITING

Output prompt2, returned when incomplete statements are interpreted.

BREAK

Output break, displayed when an operation is interrupted with SIGINT.

CD

Output cd, returned by the cd function.

DISPLAY

Output display, returned by the display function.

EXIT

Output exit, returned as last message from AMPL before exiting the interpreter.

EXPAND

Output expand, returned by the expand function.

LOAD

Output load, returned by the load function when loading a library.

OPTION

Output option, returned by the option function when getting the value of an option.

PRINT

Output print, returned by the print function when printing values from AMPL command line.

PROMPT

Output prompt1, normal AMPL prompt.

SOLVE

Output solve, returned by the solve function, contains the solver message.

SHOW

Output show, returned by the show function.

XREF

Output xref, returned by the xref function.

SHELL_OUTPUT

Output of the AMPL command shell

SHELL_MESSAGE

Messages from the command shell

MISC

Output misc

WRITE_TABLE

Messages from the command write table