The Floyd executables
There is a windowless variation of the
PinK executables called Floyd.
This are simple programms consisting of the Tcl command
language, the ADAMO and DAD library, and a short main
program that reads commands from standard input or from a file.
If invoked with no arguments then Floyd runs interactively,
reading PinK/Tcl commands from standard input and printing
command results and error messages to standard output. It
runs until the exit command is invoked or until it reaches
end-of-file on its standard input.
If there exists a file .floydrc in the home directory of the
user, it will be evaluated as a PinK script just before reading
the first command from standard input or from the script.
The Floyd executables come in two flavors: floyd and
While floyd uses the full featured ADAMO tap library
including the complete ZEBRA code, floydy uses only the
smalltap library without the ZEBRA drivers which makes the
executable much smaller.
A little backdraw of floydy is, that due to the lack of the ZEBRA
drivers there are no GAF objects available; however -
this makes floydy ideal as an interpreter for DAD client scripts.
Command line syntax
floyd and fludyy have the same command line syntax as
If Floyd is invoked with arguments then the first argument
is the name of a script file and any additional arguments
are made available to the script as variables (see below).
Instead of reading commands from standard input Floyd will
read PinK commands from the named file and exit when it reaches the
end of the file.
floyd [fileName [arg ...]]
The following variables are available in the Floyd script:
- Contains a count of the number of arguments (0 if none), not
including the name of the script file.
- Contains a list whose elements are the arguments, in order, or an
empty string if there are no arg arguments.
- Contains fileName if it was specified. Otherwise, contains
the name by which Floyd was invoked.
- Contains 1 if Floyd is running interactively
(no fileName was specified and standard input is a terminal-like
device), 0 otherwise.
The PinK library
On startup the Floyd executables try to find an additional Tcl autoload
library in one of the following directories:
./pinklib, $PINK_LIB, $HERMES_LIB/pinklib and
The directories are checked in this order. The name of first existing
directory will be reported and prepended to the list in auto_path.
Floyd Scripts and the Idle Function
There are two features of the PinK executables that are introduced by
the Tk library one wants not easily top give up in the windowless version.
This two commands are the after
command and the CreateFH
method on Dad objects. Hence this two features are implemented in Floyd
making it necessary to set Floyd in an idle mode where it reacts
on timer and connection events. This idle mode is entered using the
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last modification: Aug 14 1995 .