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-
- Console Buffer by
- William J. Fritz
- 4504 E. Yates Rd.
- Bensalem, Pa. 19020
- 215-245-1584
- GEnie electronic mail address W.FRITZ1
-
- PROGRAM UPDATES:
-
- Version 1.1
-
- 4/07/90 Due to a problem finding the font size if the font was changed
- after the console was opened I now use the font in the window
- rastport rather than the window font itself to find the ysize.
-
- 5/11/90 Console hang problem using CB with the Matt Dillon Shell reported
- to me by Alan P. McDonley. I added code to filter Device Status
- Reports out of the buffer when it is displayed. These reports
- are sent to the console by the shell for every console prompt.
-
- 5/11/90 Increased the maximum number of lines on a display from 50 to
- 99 for those of you running an interlaced PAL screen with an
- eight or nine point font.
-
- 5/12/90 Exiting from buffer display mode is now accomplished by hitting
- any unused key rather than the <q> key. Thanks to John Baker of
- Falls Church, Va. for the idea.
-
-
- CONDITIONS FOR USE AND DISTRIBUTION:
-
- CB is Copyright (c) 1990 by William J. Fritz
-
- CB is a copyrighted program that is provided "as is". There is no
- warranty, either expressed or implied, as to the quality or usefullness
- of the program. The user of the program accepts all risks associated with
- it's use.
-
- CB is freely distributable provided:
-
- 1. The files are all left intact.
-
- 2. No charge is made for CB (other than a reasonable copy charge of $6.00
- or less)
-
- 3. CB is not packaged as a part of a commercial product.
-
- 4. CB may not be uploaded to any electronic service that claims
- a copyright to it's files and programs.
-
- DESCRIPTION:
-
- Console Buffer is for CLI users who would like to have a history
- and/or hardcopy (either file or device) of their console input and output.
- It works with both CLI and shell windows. Console I/O is saved in a
- buffer, the size of which is set by the user. The default buffer size is
- 100 lines.
-
- When the program is started a proportional gadget is attached to the
- console window that can be used to scroll through the console I/O just as
- you would use a word processor vertical scroll gadget.
-
- The Console Buffer program consists of two modules.
-
- CB - CB loads CB-handler if it is not loaded and
- interprets the command line arguments. If CB-handler
- is present the current status is reported.
-
- CB-handler - CB-handler monitors the console that CB was started
- from, builds the buffer in memory and displays the
- buffer data. This module must be placed in either the
- current directory or the L: directory of the system
- disk in order for CB to find it.
-
- CLI Argument Help:
-
- For command line argument help type <CB ?>.
-
- START:
-
- To start CB type <CB> at the console you wish to monitor--this will
- use the default of 100 lines. Do not "run" the program. (e.g. "run CB"). If
- you wish another number of lines saved open with <CB -l###>, ### being the
- number of lines to save. For a hard-copy of the Console I/O start with
- <CB -hname>, the name being either a file name or device name. (e.g.<CB -hPRT:>
- to have the printer as the hardcopy device)
- The -o, -q and -r options to output buffer, quit and reset cannot be used
- at Console Buffer startup as they pertain to a currently active buffer only.
-
- DISPLAY:
-
- To display the buffer click on the proportional gadget in the right
- border of the console window. The title line of the console window will
- be changed to indicate display mode is active.
-
- While in display mode use either the prop gadget or the up and down
- arrow keys to view the buffer.
-
- up-arrow scroll down one line
- down-arrow scroll up one line
- shift-up-arrow scroll down one window frame
- shift-down-arrow scroll up one window frame
- control-up-arrow scroll to top of buffer
- control-down-arrow scroll to bottom of buffer
-
- Single line scrolling is also possible by clicking and holding the mouse
- within the display window. The area that the mouse pointer occupies determines
- the speed and direction of scrolling. The window is divided into five horizontal
- zones of equal size. The center zone does no scrolling. The next zone out from
- the center gives a slow scroll. If the pointer above the center zone you will
- scroll down, if below you will scroll up. The top and bottom zones are for
- fast scrolling.
-
- Scrolling up or down by a window frame will be inaccurate if any lines
- within the displayed window frame contain more characters than can fit on
- a single window line. When the cursor reaches the right edge of the window
- an automatic line feed is performed and the buffer line continues on the
- following window line. The problem is that this is still considered the
- same line to the program. Each time an automatic line feed is done the window
- frame scroll will go one line too far and the top line in the window frame
- will be scrolled off the display. If your buffer contains lines longer than
- the console window use the single line scroll instead of the window frame
- scroll.
-
- If another program sends something to the console window while in display
- mode it will be suspended until you return from display mode.
-
- To quit display mode and return to the normal console window enter any
- key other than the up and down arrow keys. The window's original title will
- re-appear.
-
- COMMAND LINE OPTIONS:
-
- The command lines listed below facilitate:
- 1. Setting the maximum number of lines to keep in memory.
- 2. Specifying a hardcopy device or file for a permanent record of
- console IO.
- 3. Setting the update frequency for the hardcopy device or file.
- 4. Including time stamps on console prompts in the buffer data.
- 5. Reseting the buffer - releasing the current data from memory.
- 6. Sending the currently buffered data to a device or file.
- 7. Exiting the Console Buffer program.
-
- The first time CB is called a buffer is started and whatever command
- line options are specified are activated. After the buffer is started you
- may alter any of these options by calling CB again with whatever changes
- you desire on the command line. Only the options on the command line will
- be changed.
-
- For example: if you are using a hardcopy and wish to delete it enter
- <CB -h>, the lack of a name after the <h> switch will cause no hardcopy to
- be used. Any remaining lines in the buffer that have not been copied to the
- hardcopy will be flushed.
-
- SET MAX LINES: <CB -l200>
-
- The -l option sets the maximum number of lines to keep in memory. If the
- number of lines is set after the program has been running and is lower than
- that being currently buffered by the program, excess lines in the buffer
- will be discarded.
-
- The above example would set the maximum number of lines that the buffer
- will hold at 200. At the 201st line the first line that went into the buffer
- would be discarded and the 201st line entered at the end.
-
- If you are using the hardcopy option the maximum number of lines that the
- buffer will hold must be set higher than the hardcopy update value. If you
- try to set it lower an error message will appear and the -l option will not
- be done.
-
- HARDCOPY: <CB -hPRT: -u25>
-
- The -h option (hardcopy) allows you to make a permanent record of the
- console I/O. The buffer data can be directed to any AmigaDOS device or file.
-
- The format of the command line is <CB -hname> where name if the name of
- the file or device that you wish to receive the hardcopy data. Note that
- there must be no intervening spaces between the <h> and the <name>.
-
- The above example would send the hardcopy data to the printer, writing
- to the printer only after 25 lines have been accumulated, then sending
- all 25 lines.
-
- Care should be used with this option as using the printer for hardcopy
- will significantly slow down the console I/O, specifying a floppy disk file
- will require that disk be installed all the time the buffer is running.
- Having a hardcopy does not preclude the use of the buffer.
-
- The -u option (update) specifies the frequency of hardcopy access. For
- safety the hardcopy is opened and closed each time data is sent to it.
- Doing this can perceptibly slow down the console. Using the update command
- line option you can set the update value for writing to the hardcopy device
- or file. This value specifies the number of lines to accumulate in the
- buffer before sending them to the hardcopy. The update value, which
- defaults to 10 lines, must be less than the maximum number of lines to
- buffer.
-
- TIME STAMP:
-
- The -t option will mark all prompt lines in the buffer with the time that
- the command is entered. The time is in military format. This time stamp will
- only be in the buffer, not on the CLI display.
-
- RESET BUFFER:
-
- The -r option (reset buffer) releases all the lines currently being held
- in memory. Using the -r option does not change the maximum number of lines
- that the buffer can hold. This option is only valid on a running Console
- Buffer, it can not be specified at start-up.
-
- OUTPUT BUFFER:
-
- The -o option (output buffer) dumps all of the lines currently being held
- in memory to the specified file or device. The format is <CB -oname> where
- name if the file or device you wish to receive the data. Note that there
- must be no intervening spaces between the <o> and the <name>.
- This option only pertains to a running Console Buffer and cannot be
- specified on program start-up.
-
- QUIT:
-
- To quit and recover memory used by the buffer, type <CB -q>. If this
- hangs do to an error in the conbuf-handler module you can exit with a
- Control-C. Ending the CLI that the buffer is attached to will automatically
- end that Console Buffer, recovering all memory used.
-
- MEMORY REQUIREMENTS:
-
- After the program is started the storage used is approximately 9 K, plus
- the lines buffered. Each line buffered uses the size of the line plus eight
- bytes. Running the program with a 100 line buffer will use about 14K of
- storage. Using a 500 line buffer will require about 28K.
-
- COMMENTS:
-
- Any comments, constructive criticism or useful additions to the program
- may be directed to me at the above address or on GEnie electronic mail at
- address W.FRITZ1
-