dpwish - Distributed programming/windowing shell

dptcl - Distributed programming shell

dpsh - Distributed programming shell

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SYNOPSIS

OPTIONS

-display display

Display (and screen) on which to display window. Only allowed in dpwish. Ignored if -notk is specified.

-file fileName

Read commands from fileName rather than standard input. The last element in fileName will be used as the title for the application and name of its interpreter for send commands (unless overridden by the -name option).

-geometry geometry

Initial geometry to use for window. Only allowed in dpwish. Ignored if -notk is specified.

-name name

Use name as the title to be displayed in the window, and as the name of the interpreter for send commands. Only allowed in dpwish. Ignored if -notk is specified.

-sync

Execute all X server commands synchronously, so that errors are reported immediately. This will result in much slower execution, but it is useful for debugging. Only allowed in dpwish. Ignored if -notk is specified.

-help

Print a summary of the command-line options and exit.

-notk

Do not connect to the X server. This mode is useful for daemon/server processes. Ignored in dptcl and dpsh.

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DESCRIPTION

Dpwish is a simple program consisting of the Tcl command language, the Tk toolkit, the Tcl-DP extension, and a main program that reads commands from standard input or from a file. It creates a main window and then processes Tcl commands. If dpwish is invoked with no -f option then it reads Tcl commands interactively from standard input. It will continue processing commands until all windows have been deleted or until end-of-file is reached on standard input.

If the dpwish executable is named dptcl, then the -notk flag is implied. Finally, dpsh is a version of dpwish that contains only th Tcl command language, the Tcl-DP extension, and a main program that reads commands from standard input or from a file. If there exists a file .dpwishrc in the home directory of the user, dpwish (and dptcl) will evaluate the file as a Tcl script just before reading the first command from standard input. The corresponding file for dpsh is .dpshrc

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If the -file option is provided to Tk, then dpwish (or dptcl or dpsh) reads Tcl commands from the file named in the -file option. These commands will normally create an interactive interface consisting of one or more widgets. When the end of the command file is reached, dpwish will continue to respond to X events until all windows have been deleted. There is no automatic evaluation of .dpwishrc in this case, but the script file can always source it if desired.

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VARIABLES

Dpwish, dptcl, and dpsh set the following Tcl variables:

argc

Contains a count of the number of arg arguments (0 if none), not including the options described above.

argv

Contains a Tcl list whose elements are the arg arguments (not including the options described above), in order, or an empty string if there are no arg arguments.

argv0

Contains fileName if it was specified. Otherwise, contains the name by which dpwish was invoked.

tcl_interactive

Contains 1 if dpwish is reading commands interactively (no -file option was specified and standard input is a terminal-like device), 0 otherwise.

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SCRIPT FILES

If you create a Tcl script in a file whose first line is

#!/usr/local/bin/dpwish -f

If you create a Tcl script in a file whose first line is

#!/usr/local/bin/dptcl -f

PROMPTS

When any of the programs are invoked interactively they normally prompt for each command with ``% ''. You can change the prompt by setting the variables tcl_prompt1 and tcl_prompt2. If variable tcl_prompt1 exists then it must consist of a Tcl script to output a prompt; instead of outputting a prompt dpwish will evaluate the script in tcl_prompt1. The variable tcl_prompt2 is used in a similar way when a newline is typed but the current command isn't yet complete; if tcl_prompt2 isn't set then no prompt is output for incomplete commands.

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KEYWORDS