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- APPENDIX A -- What's New!
-
- DoubleTake Professional
- Version 2.0
-
- 1. ASCII Mode. The most significant improvement in DoubleTake
- Professional, Version 2.0, is the implementation of a fully functional
- ASCII viewing mode.
-
- 2. Common features. In Version 2.0, ASCII Mode and Hex mode share many
- features:
-
- Fully scrollable forward or backward, any length file.
-
- Cursor movement keys can move each file line by line or character by
- character.
-
- Can move a "cursor" (or pointer) character by character in each file.
-
- Double Scroll Mode -- Scroll Lock toggles whether both file character
- cursors move together when you press the Right/Left arrows. Starts
- with Double Scroll Mode On.
-
- Find String highlights the found string (in case you want to save the
- block to a clip file.)
-
- Find String, Find Next Mismatch and Align Files remain at the current
- spot in the file if you do not find a string, mismatch or a spot to
- align in a file.
-
- Added ability to enter Hex or Decimal codes when searching for a
- string. (to search for non-printing characters, such as CR or LF or
- TAB). Use no quotes if entering just a string. Use quotes if you
- want to mix hex ($20 =space character, for example) and decimal
- (\032=space character) along with the strings.
-
- DoubleTake provides a configurable Align Files function. Pressing
- [Alt-A] lets you choose:
-
- 1) which file to align with which,
- 2) how much of the "Align-with" file to search for in the "bring-
- into-alignment" file,
- 3) which way to search for in the "bring-into-alignment" file,
- 4) how many characters to check in the "bring-into- alignment"
- file and
- 5) whether to ignore upper/lower case in the search. If Blank
- Ignore is on, all "IGNORE" characters are ignored in finding a
- match.
-
- DoubleTake has a single-key auto-align function to try to re-align the
- files after you've found a mismatch. Just press [A] and DoubleTake
- will search both forward and backward for a match according to the
- parameters you've set for how far to search and how long a string to
- match.
-
- The key to toggle between Hex and ASCII has been changed from [X] to
- [Alt-X]. The key to toggle between Hex 24-column and 80-column modes
- was changed from [Alt-X] to [X]. This makes it a bit more difficult
- to change modes, to minimize accidentally changing modes when all you
- want to do is toggle between the Hex 80 and 24 columns modes.
-
- In the Directory Picker, to view a file, you must now press [Alt-V]
- instead of just [V]. You may now press any character (A through Z)
- and the cursor will move to the first entry starting with that letter.
-
- You can now toggle between displaying characters in their normal
- printing modes (e.g., happy faces, musical notes, etc.), periods or
- spaces. The new mode added, spaces, allows a cleaner display of an
- ASCII file for those distracted by the periods at the end of the line
- (representing the carriage return and line feeds).
-
- The /1 switch has been eliminated in this version to make DoubleTake
- easier to use as a single file viewer. If you wish to use DoubleTake
- as a single file viewer, simply enter DoubleTake with a single
- filename. Or, if you started DoubleTake with no command line
- arguments, simply enter the one filename you wish to view and press
- [Enter] once when asked for the second filename.
-
- When changing from Hex to ASCII and ASCII to Hex, DoubleTake stays at
- the same location (same character) in the file.
-
- A file can usually be read successfully in either Hex or ASCII mode.
- DoubleTake no longer checks a file for non-printing characters -- it
- starts in the mode (either Hex or ASCII) set in the DUBLTAKE.CNF file.
-
- DoubleTake uses the largest possible file buffers allowed by the
- amount of free memory available at start-up. For larger files, this
- means DoubleTake will load the file in larger sections and process the
- file faster.
-
- 3. ASCII Mode Unique Features.
-
- ASCII Mode has configurable End-of-Line characters. The default
- characters are Carriage Return (ASCII code hex $0D), Line Feed ($0A),
- CR with high bit set (WordStar, ASCII code $8D) and Linefeed with high
- bit set ($8A). You can choose your own End of Line codes to adapt
- DoubleTake to your specific word processor.
-
- Either one or two character End-of-Line characters can be handled.
- DoubleTake recognizes Carriage Return (CR) and Linefeed (LF) as the
- end of a single line. If the same End of Line character occurs twice
- in succession, DoubleTake assumes that this file only uses the one
- character to indicate End of Line and will reflect two lines, one for
- each End of Line character.
-
- DoubleTake shows either Line Number Mode or Show Byte At Cursor Mode.
- In the Line Number Mode, DoubleTake shows the actual line in the file;
- in the Show Byte mode, DoubleTake shows the byte at the cursor.
-
- ASCII Mode uses the [Tab] and [Shift-Tab] keys to scroll the screen
- right or left to view lines wider than the screen width. Can scroll
- files independently or together. A Quick-Return-to-Column-One key
- [Right-Shift-Tab] returns either or both files to the left margin)
-
- Added the ability to highlight a block and write it to a CLiP file of
- your own choice. Two CLiP files are available, one for each file, but
- you may change either or both clip files as you choose. Clip
- filenames default to the same filename as the compared file, with the
- extension of ".CLP," but you can change any part of the name. You can
- also send to a DOS device like PRN or LPT1.
-
- Enter a new filename, overwrite an existing CLiP file or continuously
- add to the end of it.
-