Power Programmierung 2

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PED Version 1.0a Copyright (c)1989 Ross Neilson Wentworth All Rights Reserved Portions Copyright 1987 Borland International Portions Copyright 1988 TurboPower Software PED was created out of frustration. I was frustrated because I was unable to compile large programs from within the Turbo Pascal editor environment. Attempts at using a couple of shareware editor left me unhappy because they didn't support the ability to have a macro automatically jump to the line where a compile error occurred like in the Turbo Editor. While many commercial editors fully support this capability they were not feasible due to a tight budget. Thus, PED was created. Starting with FirstEd from the Turbo Pascal Editor Toolbox as a foundation, I added the most important features I needed to conduct my daily projects. These features are: o Shell to the Turbo Pascal command-line compiler. o Jump to lines where errors occurred when compiling. o Display the compiler error message on the status line. o Multiple file editing (PED supports up to five windows). o Use as little memory as possible when shelling. That last feature was very important to me since it was what prompted me to create my own editor. While PED uses minimal memory (around 100k) under normal circumstances, if the computer is equipped with LIM 4.0 expanded memory, and at least 350k is available, only 10k of conventional memory will be consumed by the editor while running the compiler, debugger, or shelling to DOS. In other words, the amount of memory wasted is so trivial that it can be ignored. You will notice that PED lacks keyboard macros. This was not an oversight. I wrote this program for myself and I hardly ever use macros. If you're looking for an editor with macros I highly recommend QEdit. A fine shareware editor with an abundance of features. If QEdit supported some way to automatically jump to error lines and took advantage of expanded memory I would be using it instead. I may be reached at the following address: Ross Neilson Wentworth 1422 Elkgrove Circle, #3 Venice, CA 90291 (213)399-1244 (voice) I can be reached electronically at Torrance BBS (1:102/345), (213)370-9027. This is a limited hour board, 6pm-9am weekdays, all weekend. You can send mail to me at 1:102/345.1. - 2 - PED Quick Reference Primary Secondary =================== ============= ============= Character left LfAr Ctrl-S Character Right RtAr Ctrl-D Word left Ctrl-LfAr Ctrl-A Word right Ctrl-RtAr Ctrl-F Line up UpAr Ctrl-E Line down DnAr Ctrl-X Scroll up Ctrl-W Scroll down Ctrl-Z Page up PgUp Ctrl-R Page down PgDn Ctrl-C Beginning of file Ctrl-PgUp Ctrl-Q R End of file Ctrl-PgDn Ctrl-Q C Beginning of line Home Ctrl-Q S End of line End Ctrl-Q D Top of screen Ctrl-Home Ctrl-Q E Bottom of Screen Ctrl-End Ctrl-Q X Go to line Ctrl-J L Alt-J Go to column Ctrl-J C Top of block Ctrl-Q B Bottom of Block Ctrl-Q K Jump to marker 0..9 Ctrl-Q 0 .. Ctrl-Q 9 Set marker 0..9 Ctrl-K 0 .. Ctrl-K 9 Previous cursor position Ctrl-Q P New line Enter Ctrl-M Insert line Ctrl-N Insert control character Ctrl-P Tab Tab Ctrl-I Delete current character Del Ctrl-G Delete character left Backspace Ctrl-H Delete word Ctrl-T Delete word left Ctrl-Backspace Delete to end of line Ctrl-Q Y Delete line Ctrl-Y Find pattern Ctrl-Q F Find and replace Ctrl-Q A Find next Ctrl-L Abandon file Ctrl-K Q Save and continue edit Ctrl-K S Save and exit to DOS Ctrl-K X F2 Save all and exit to DOS Alt-X Save to file Ctrl-K N Add window Ctrl-O H Shift-F3 Next window Ctrl-O N F6 Previous window Ctrl-O P Shift-F6 Resize current window Ctrl-O S Begin block Ctrl-K B F7 End block Ctrl-K K F8 Copy block Ctrl-K C Move block Ctrl-K V Delete block Ctrl-K Y Hide block Ctrl-K H - 3 - Mark curren word as block Ctrl-K T Read block from file Ctrl-K R Write block to file Ctrl-K W Toggle insert mode Ctrl-V Ins Toggle autoindent mode Ctrl-Q I Toggle marker display Ctrl-K M Change directory Ctrl-J D Show version Ctrl-J V Show available memory Ctrl-J R Set undo limit Ctrl-J U Set default extension Ctrl-J E Abort command Ctrl-U Undo last delete Ctrl-Q U Restore line Ctrl-Q L Compile F9 Set compiler options Ctrl-J O Set primary file Ctrl-J P Debug F10 Set debug options Ctrl-F10 Shell Ctrl-F9 Of special interest to Turbo Pascal programmers are the following commands: Compile Set Compiler Optios Set Primary File Debug Set Debug Options Shell See below for descriptions of these commands. - 4 - Cursor Movement Commands ================================================================= Character Left LfAr or Ctrl-S Moves the cursor one character to the left. This command does not work across line breaks; when the cursor reaches column 1, it stops. Character Right RtAr or Ctrl-D Moves the cursor one character to the right. This command does not work across line breaks; when the cursor reaches the right- hand edge of the text window, the text starts scrolling horizontally until it reaches the extreme right edge of the line (column 999), where it stops. Word Left Ctrl-LfAr or Ctrl-A Moves the cursor to the beginning of the word to the left. This command works across line breaks. Word Right Ctrl-RtAr or Ctrl-F Moves the cursor to the beginning of the word to the right. This command works across line breaks. Line Up UpAr or Ctrl-E Moves the cursor to the line above. If the cursor is on the top line of the window, the window scrolls down one line (if there's more text to scroll). Line Down DnAr or Ctrl-X Moves the cursor to the line below. If the cursor is on the last line of the window, the window scrolls up one line (if there's more text to scroll). Scroll Up Ctrl-W Scrolls up toward the beginning of the file, one line at a time. The cursor remains on its line until it reaches the bottom of the window. Scroll Down Ctrl-Z Scrolls down toward the end of the file. The cursor remains on its line until it reaches the top of the window. Page Up PgUp or Ctrl-R Moves the cursor on page up with an overlap of one line. Page Down PgDn or Ctrl-C Moves the cursor down one page with an overlap of one line. Beginning of File Ctrl-PgUp or Ctrl-Q R Moves the cursor to the first character in the file. End of File Ctrl-PgDn or Ctrl-Q C Move the cursor to the last character in the file. - 5 - Beginning of Line Home or Ctrl-Q S Moves the cursor to column 1 of the current line. End of Line End or Ctrl-Q D Moves the cursor to the end of the current line (the position following the last nonblank character on the line). Trailing blanks are always removed from all lines to preserve space. Top of Screen Ctrl-Home or Ctrl-Q E Moves the cursor to the first line displayed in the active window. The cursor remains in the same column. Bottom of Screen Ctrl-End or Ctrl-Q X Moves the cursor to the last line displayed in the active window. The cursor remains in the same column. Go to Line Ctrl-J L or Alt-J Prompts for a line number and moves the cursor to the specified line. Any positive integer in the range 1 to 32,767 is valid. If the value is preceded by a plus (+) or minus (-) sign, the target line number will be calculated relative to the current line. Line numbers are counted from the beginning of the file. Go to Column Ctrl-J C Prompts for a column number and moves the cursor to the specified column in the current line. Any positive integer in the range 1 to 999 is valid. If the value is preceded by a plus (+) or minus (-) sign, the target column number will be calculated relative to the current column. Top of Block Ctrl-Q B Moves the cursor to the position of the block-begin marker set with Ctrl-K B. The command works even if the block is hidden or the block-end marker is not set. Bottom of Block Ctrl-Q K Moves the cursor to the position of the block-end marker set with Ctrl-K K. The command works even if the block is hidden or the block-begin marker is not set. Jump to Marker 0..9 Ctrl-Q 0 .. Ctrl-Q 9 Moves the cursor to one of the ten text markers with the Set marker command. Ctrl-Q 0 jumps to marker 0, Ctrl-Q 1 jumps to marker 1, and so on. If the specified marker has not been set, the cursor is not moved. Set Marker 0..9 Ctrl-K 0 .. Ctrl-K 9 Sets one of the ten text markers at the current position of the cursor. Ctrl-K 0 sets marker 0, Ctrl-K 1 sets marker 1, and so on. - 6 - Previous Cursor Position Ctrl-Q P Moves to the last cursor position. This command is particularly useful to move back to the previous position after a Find or Find-and-Replace operation. - 7 - Insert and Delete Commands ================================================================= New Line Enter or Ctrl-M In Insert mode, this command inserts a line break at the cursor's position. If AutoIndent mode is in effect, the cursor moves to the next line and to the same column as the first nonblank character in the previous line; otherwise, it moves to column 1 of the new line. In Overwrite mode, this command moves the cursor to column 1 of the next line without inserting a new line, whether Autoindent mode is in effect or not. A new line will be inserted if you're in Overwrite mode and the cursor is on the last line of the file. Insert Line Ctrl-N Inserts a line break at the cursor's position. The cursor does not move. Insert Control Character Ctrl-P Allows control characters to be entered into the text. For example, pressing Ctrl-P and then Ctrl-B would insert Ctrl-B into the text. Control characters are always displayed as highlighted capital letters. Delete Current Character Del or Ctrl-G Deletes the character under the cursor and moves any characters to the right of the cursor one position to the left. This command does not work across line breaks. Delete Character Left Backspace or Ctrl-H Moves the cursor one character to the left and deletes the character positioned there. Any characters to the right of the cursor are moved one position to the left. If the cursor is at column 1 at the time the command is given, the invisible end-of- line marker for the previous line is deleted instead and the two lines joined. Delete Word Ctrl-T Deletes the word to the right of the cursor. This command works across line breaks and thus may be used to remove line breaks. Delete Word Left Ctrl-Backspace Deletes the word to the left of the cursor. This command works across line breaks and thus may be used to remove line breaks.s Delete to End of Line Ctrl-Q Y Deletes all the text from the position of the cursor to the end of the line. Delete Line Ctrl-Y Deletes the line containing the cursor and moves any lines below up one line. The cursor moves to column 1 of the next line. - 8 - Find-and-Replace Commands ================================================================= Find Ctrl-Q F Lets you search for a string of up to 67 characters. When you enter this command, you will be asked for a search string. The last search string entered (if any) will be displayed. You can select it again by pressing Enter, edit it, or enter a new search string. Esc or Ctrl-U will cancel a search command, and Ctrl-P can be used to enter control characters. For example, to find a period at the end of a line you would search for ".CTRL-M", where CTRL-M was entered by pressing Ctrl-P and Ctrl-M. After the search string is entered, you must specify your search options. The options you used last are displayed. You can enter new options (canceling the old ones), edit the current options, or select them again by pressing Enter. The following options are available: B Searches backwards from the current cursor position toward the beginning of the file. G Searches globally. The entire file is scanned for the search string, regardless of the current position of the cursor. The search starts at the beginning of the file if searching forwards; at the end if searching backwards. L Limits searches to the currently marked block. U Ignores case; treats all alphabetic characters as if they were upper-case. W Searches for whole words only; skips patterns embedded in other words. If the text contains a target matching the search string, the target is highlighted and the cursor is positioned just beyond it. Find-and-Replace Ctrl-Q A This operation works the same as the Find command except that you can replace the found string with any other string of up to 67 characters. After the entering the search string, you are asked to enter the replacement string. The last replacement string entered, if any, will be displayed; you may accept it, edit it, or enter a new string. - 9 - Finally, you are prompted for options. The options you used last are displayed first. You may enter new options (canceling the old ones), edit the current options, or select them by pressing Enter. The options available are the same as those for the Find command except the exception of the following: N Replaces without asking; does not prompt for confirmation at each occurrence of the search string. If the text contains a target matching the search string, the target is highlighted and the cursor is positioned just beyond it. You are then asked if you wish to replace it. Press Y to replace it, N to ignore it, or A to replace it and all subsequent matches without asking. You can abort the operation by pressing Q. If you select N (no prompt) option, this question will not be asked. Find Next Ctrl-L Repeats the last search operation. If the last search command called for a Find operation, the same search string and options will be repeated; for a Find-and-Replace operation, the replacement string will be reused as well. - 10 - File Commands ================================================================= Abandon File Ctrl-K Q If the file in the active window has not been modified, this command closes the window. Otherwise, you are asked to verify that the file would be abandoned before the window is closed. If the active window is the only window open, this command can be used to quit the program. Save and Edit Ctrl-K S Simply saves the tile in the active window. Save and Exit to DOS Ctrl-K X or F2 Saves the file in the active window. If the active window is the only window open, this command will quit the program, otherwise, the window is closed and you may continue editing in another window. Save All and Exit to DOS Alt-X Saves all files that have been modified and exits to DOS. Save to File Ctrl-K N Prompts you for a file name, the saves the file in the current window in the specified file. This becomes the new name for the file in the window (and in any other windows that display the file). This command is particularly useful when editing NONAME files. - 11 - Window Commands ================================================================= Add Window Ctrl-O H or Shift-F3 Opens another window. You will be prompted for a file to edit; if you do not specify one, a NONAME file is created. You can later save it as a named file with the Save-to-File command. If too many windows are opened (limit of five) or if the active window is too small to be divided in half (fewer than seven screen lines including the status line), you will get an error message. Next Window Ctrl-O N or F6 Makes the next window the active window. Previous Window Ctrl-O P or Shift-F6 Makes the previous window the active window. Resize Active Window Ctrl-O S Changes the size of the active window. You can adjust the size by pressing the UpAr and DnAr keys. When you are finished, pressing Enter or Esc returns you to the editor. - 12 - Block Commands ================================================================= Begin Block F7 or Ctrl-K B Marks the beginning of a block. The marker itself is not visible on the screen, and the block becomes invisible only when the end-block marker is set. You can also use the begin-block as an extra text marker and jump directly to it with Ctrl-Q B. End Block F8 or Ctrl-K K Marks the end of a block. Like the begin-block marker, the end- block marker is invisible, and the block itself will not be displayed unless both markers are set. You can also use the end-block marker as an extra text marker and jump directly to it with Ctrl-Q K. Copy Block Ctrl-K C Creates a copy of a marked and displayed block at the current cursor position. The original block is left unchanged, and the markers are placed around the new copy of the block. Move Block Ctrl-K V Moves a marked and displayed block from its current position to the cursor's position. The markers remain around the block at its new position. Delete Block Ctrl-K Y Deletes a marked and displayed block. Although the Undo last deletion can usually restore portions of an accidentally deleted block, there is no command to restore a deleted block in its entirety, so use this command with care. Hide Block Ctrl-K H Toggles off and on the visual marking of a block. Mark Single Word Ctrl-K T Marks a single word as a block, combining the functions of the begin-block and end-block commands. If the cursor is positioned within a word, that word will be marked. If it is not within a word, then the word to the right of the cursor will be marked, and if there is no word to the right of the cursor, then the word to the left will be marked. Read Block from File Ctrl-K R Read a file into the text at the cursor's current position exactly as if it were copied from another part of the text. The file read in is marked as a block. - 13 - Write Block to File Ctrl-K W Writes the currently marked block to a file. You are first prompted for a file name. If the file already exists, you are asked if you want to overwrite it. If the file does not exist, a new file is created. The block is left unchanged, and the block markers remain in place. If no block is marked, this command is ignored. - 14 - Miscellaneous Commands ================================================================= Abort Ctrl-U Halts an operation in progress. The keyboard buffer is checked regularly to see if the Abort command has been issued; if it has, the buffer is emptied and the operation is stopped. Restore Line Ctrl-Q L Will undo any changes made to a line of text as long as you have not left the line. The line is restored to its previous contents regardless of the changes made. Undo Last Deletion Ctrl-Q U Restores whole lines deleted with the delete-line command (Ctrl- Y) or the delete-block command (Ctrl-K Y). It does not restore single characters or words. To undo your most recent changes to the current line, use the restore-line command (Ctrl-Q L). The size of the "undo buffer" is specified with the set-undo-limit command. Set Undo Limit Ctrl-J U Sets the size of the "undo buffer" which stores deleted lines. The default value is 20 lines unless you have changed it with the installation program. Toggle Insert Mode Ins or Ctrl-V Selects the Insert or Overwrite mode. In insert mode, text to the right of the cursor is moved to the right as new text is entered. In Overwrite mode, any text beneath the cursor is overwritten when new text is entered. Notice that the cursor's size is an indication oof the mode you are in: A thin cursor indicates Overwrite, while a slightly fatter cursor indicates Insert. Toggle Autoindent Ctrl-Q I When Autoindent mode is in effect, the New line command (Enter or Ctrl-M) will move the cursor to the next row and to the same column as the first nonblank character on the previous line. Toggle Marker Display Ctrl-K M Hides or makes all text markers visible. Setting a new text marker automatically turns on Marker display if it was previously turned off. Change Directory Ctrl-J D Changes the active drive and directory. Set Default Extension Ctrl-J E Sets the default extension for file names. This extension is automatically added to file names lacking extensions. For example, if you have set the default extension to .PAS and are about to load SAMPLE.PAS, you can simply enter SAMPLE when prompted for a file name. - 15 - Show Version Ctrl-J V Displays the version of PED currently in use. Show Available Memory Ctrl-J R Shows you the amount of random access memory (RAM) available. - 16 - Programmer Commands ================================================================= Compile F9 Executes the Turbo Pascal compiler (TPC.EXE), passing the file name of the active window as the file to compile (unless you have set the Primary file, in which case that file is compiled). TPC.EXE must be somewhere on the PATH. Upon returning from the compiler, if a compile error occurred the cursor will be positioned on the offending line and the compiler error message will be displayed. Set Compiler Options Ctrl-J O Sets the compiler options used when running the compiler (F9). The changes remain in effect until you quit the editor. If you wish to make permanent changes to the compiler options you may do so with EDINST. Set Primary File Ctrl-J P Sets the name of the primary file to use when compiling. If a primary file name is specified it will be compiled instead of the active window's file when the compiler is invoked. The named file must exist, if it does not an error message will be displayed. Debug F10 Runs Turbo Debugger. If a "primary" file is defined it will run the debugger using it with the extension "EXE", otherwise it will use the file name in the current window with the extension "EXE". If the file has been modified since the last save or compile it will be recompiled before running the debugger. Set Debug Options Ctrl-F10 This string is passed to along with the program name to debug as command line options. For example, if your program expects a file name on the command line you should use this command. This command is equivelent to the "Options, Parameters" command in the Turbo Pascal Integrated Environment. Shell Ctrl-F9 Shells to DOS. You may return to the editor by entering "EXIT". - 17 -