home *** CD-ROM | disk | FTP | other *** search
-
- ΓòÉΓòÉΓòÉ 1. Breakpoints ΓòÉΓòÉΓòÉ
-
- Breakpoints can be set on lines in the Rexx macro to cause RxD to stop running
- the macro at that line when the Go action is selected. Lines with breakpoints
- can be displayed in a different color than the other lines displayed in the
- source window.
-
- Note that ANY line may have a breakpoint on it, even if it is not possible for
- rexx to 'run' that line (a line of comments, for instance (see limitations for
- more information). Lines that do not contain executable code will NOT be
- stopped at (of course).
-
- Note that a breakpoint is hit AFTER the line with the breakpoint has been
- executed. See limitations for more information.
-
- Breakpoints may be set (or unset) in one of three ways:
-
- o Double clicking mouse button 1 in the left margin of a line.
-
- o Pressing Alt+F9 with the cursor on the line to set the breakpoint.
-
- o Selecting the Set/unset a breakpoint menu item with the cursor on the line to
- set the breakpoint.
-
- Each action either sets a breakpoint on a line, or if there is already a
- breakpoint on the line, removes the breakpoint.
-
-
- ΓòÉΓòÉΓòÉ 2. Limitations of RXD ΓòÉΓòÉΓòÉ
-
- RxD does NOT parse Rexx macros. It relies on the system trace exit to
- determine what lines are executing. Because of this, it is not possible for
- RxD to determine what is really on a line. For instance, it allows any line to
- have a breakpoint set on it, even if it is not an executable line.
-
- Even more disturbing (!) is that RxD always displays things that have already
- happened, not things that WILL happen. For instance, when single stepping
- through a program, RxD will highlight the line that JUST executed, not the line
- that WILL be executed. This is the way the Rexx trace exit works. There's
- nothing I can do about it.
-
- RxD cannot read lines from the console with the linein() function. Since the
- console is normally closed by Presentation Manager when a PM application
- starts, it will appear to the macro that the console is at end of file. Note
- that 'pull' and 'parse pull' statements are caught by RxD, and will cause a
- line entry dialog to be displayed. Also note that if standard input is
- redirected to RxD, this input WILL be picked up by the macro with the linein()
- function.
-
- If the REXX macro being debugged calls another REXX macro which executes a
- trace statement, RxD will go haywire. What happens is that line number
- information is returned from the called macro, and that line number information
- is used to display the original macro. Execute a GO to return to the original
- macro.
-
- OS/2 commands normally handled by CMD.EXE internally and that also change the
- state of CMD.EXE will not work properly under RxD. This include the "SET" and
- "CD" commands, as well as specifying a drive letter and colon to change drives.
- There are alternatives to these commands:
-
- o use the directory() function instead of "CHDIR" or "c:"
-
- o use the value() function to set OS/2 environment variables
-
-
- ΓòÉΓòÉΓòÉ 3. Watching variables ΓòÉΓòÉΓòÉ
-
- Variables may be watched in the Watch window. In this window, rexx variable
- names are displayed, and their current values. The variable and value are
- separated by a tab character (which will cause variables whose names are about
- the same length to have their values lined up).
-
- The hex 00's, carriage returns, line feeds, and tab characters are all
- translated to hex 01 (smiley face) within the value.
-
- Watch variables may be added in one of the following ways. Note that all of
- these methods do different things depending on whether any text is selected in
- the Source window. If text is selected, it is assumed to be a variable name,
- and will be added to the Watch window immediately. If no text is selected, a
- dialog will be displayed to enter the name of the variable to be watched.
- Double clicking mouse button 1 on a variable in the source window will select
- the variable.
-
- o Selecting the Add Watch! menu button
-
- o Pressing Ctrl-a
-
- o Selecting the Add a watch variable menu item
-
-
- ΓòÉΓòÉΓòÉ 4. Source window ΓòÉΓòÉΓòÉ
-
- The RxD source window displays the Rexx macro currently running.
-
-
- ΓòÉΓòÉΓòÉ 4.1. Actions ΓòÉΓòÉΓòÉ
-
- This menu contains actions that can be performed in this window.
-
-
- ΓòÉΓòÉΓòÉ 4.1.1. Set/unset a breakpoint ΓòÉΓòÉΓòÉ
-
- This menu item is used to set or unset a breakpoint on the line the cursor is
- on. Breakpoints may also be set by double clicking mouse button 1 in the left
- margin of the line desired.
-
-
- ΓòÉΓòÉΓòÉ 4.1.2. Add a watch variable ΓòÉΓòÉΓòÉ
-
- This menu item adds a variable to the watch window. If a there is selected
- text in the source window (from either selecting text with the keyboard or
- mouse, or by double clicking mouse button 1 on a variable), the selected text
- will be used as the variable to watch. If there is no selected text, you will
- be prompted for the variable name in a dialog.
-
-
- ΓòÉΓòÉΓòÉ 4.1.3. Jump to current ΓòÉΓòÉΓòÉ
-
- This menu item scrolls the source window to the line just execcuted. Useful if
- you are browsing through the text in the source window and want to get back to
- the current context.
-
-
- ΓòÉΓòÉΓòÉ 4.2. Run ΓòÉΓòÉΓòÉ
-
- This menu contains actions pertaining to the execution of the macro.
-
-
- ΓòÉΓòÉΓòÉ 4.2.1. Step ΓòÉΓòÉΓòÉ
-
- This menu item causes the next statement to be executed, and the macro to be
- paused until you step or Run
-
-
- ΓòÉΓòÉΓòÉ 4.2.2. Go ΓòÉΓòÉΓòÉ
-
- This menu item causes the macro to run until it completes (exits), or a
- breakpoint is hit.
-
-
- ΓòÉΓòÉΓòÉ 4.2.3. Restart ΓòÉΓòÉΓòÉ
-
- This menu item causes the macro to exit, and then restart from the beginning.
-
-
- ΓòÉΓòÉΓòÉ 4.2.4. Reload source ΓòÉΓòÉΓòÉ
-
- This menu item causes the macro to exit, then restart from the beginning. The
- source for the macro will also be reloaded from disk.
-
-
- ΓòÉΓòÉΓòÉ 4.3. Settings ΓòÉΓòÉΓòÉ
-
- This menu contains actions pertaining to customizable settings for the window.
-
-
- ΓòÉΓòÉΓòÉ 4.3.1. Color ΓòÉΓòÉΓòÉ
-
- This menu item displays a dialog which allows you to select the colors used for
- various items in the window.
-
-
- ΓòÉΓòÉΓòÉ 4.3.2. Font ΓòÉΓòÉΓòÉ
-
- This menu item displays a dialog which allows you to select the font to be used
- for the text in the window.
-
-
- ΓòÉΓòÉΓòÉ 4.3.3. Save window size and position ΓòÉΓòÉΓòÉ
-
- This menu item causes the current size and position of the window to be saved.
- The next time RxD is run and this window is displayed, it will be placed in the
- same position and have the same size.
-
-
- ΓòÉΓòÉΓòÉ 4.4. Windows ΓòÉΓòÉΓòÉ
-
- This menu contains a list of other windows which may be displayed.
-
-
- ΓòÉΓòÉΓòÉ 4.4.1. Watch ΓòÉΓòÉΓòÉ
-
- This menu item causes the watch window to be displayed.
-
-
- ΓòÉΓòÉΓòÉ 4.4.2. Console ΓòÉΓòÉΓòÉ
-
- This menu item causes the console window to be displayed.
-
-
- ΓòÉΓòÉΓòÉ 4.4.3. Keys help ΓòÉΓòÉΓòÉ
-
- The following keys are available in the source window:
-
- F5 See the Go menu item.
-
- F6 See the Jump to current menu item.
-
- F8 See the Step menu item.
-
- F9 See the Set/unset a breakpoint menu item.
-
- ctrl+w See the Watch menu item.
-
- ctrl+c See the Console menu item.
-
- ctrl+a See the Add a watch variable menu item.
-
- Other keys respond the same as keys in multi-line edit windows.
-
-
- ΓòÉΓòÉΓòÉ 4.4.4. Product information ΓòÉΓòÉΓòÉ
-
- This menu item shows product information.
-
-
- ΓòÉΓòÉΓòÉ 5. Watch window ΓòÉΓòÉΓòÉ
-
- The watch window displays variables being watched by RxD. Variables and their
- values are listed in this window. They are on the same line and separated by a
- tab.
-
- After a step operation, or when a breakpoint is reached, the values of the
- variables in the watch window are updated.
-
- Variables may be deleted from the watch window with the Delete variable menu
- item. Variables may be added to the watch window with the Add variable menu
- item.
-
- RxD translates some characters in values to hex '01' to prevent problems with
- the display. The characters translated are hex '00', carriage return (hex
- '0D'), line feed (hex '0A') and tab (hex '09').
-
-
- ΓòÉΓòÉΓòÉ 5.1. Actions ΓòÉΓòÉΓòÉ
-
- The Actions menu list various actions that can be performed in this window.
-
-
- ΓòÉΓòÉΓòÉ 5.1.1. Add a variable to the watch window ΓòÉΓòÉΓòÉ
-
- This menu item displays a dialog to allow a variable to be added to the watch
- window.
-
-
- ΓòÉΓòÉΓòÉ 5.1.2. Delete a variable from the watch window ΓòÉΓòÉΓòÉ
-
- This menu item deletes the variable pointed to by the cursor from the watch
- window.
-
-
- ΓòÉΓòÉΓòÉ 5.1.3. Delete all variables from the watch window ΓòÉΓòÉΓòÉ
-
- This menu item deletes all the variables from the watch window.
-
-
- ΓòÉΓòÉΓòÉ 5.2. Settings ΓòÉΓòÉΓòÉ
-
- This menu contains actions pertaining to customizable settings for the window.
-
-
- ΓòÉΓòÉΓòÉ 5.2.1. Color ΓòÉΓòÉΓòÉ
-
- This menu item displays a dialog which allows you to select the colors used for
- various items in the window.
-
-
- ΓòÉΓòÉΓòÉ 5.2.2. Font ΓòÉΓòÉΓòÉ
-
- This menu item displays a dialog which allows you to select the font to be used
- for the text in the window.
-
-
- ΓòÉΓòÉΓòÉ 5.2.3. Save window size and position ΓòÉΓòÉΓòÉ
-
- This menu item causes the current size and position of the window to be saved.
- The next time RxD is run and this window is displayed, it will be placed in the
- same position and have the same size.
-
-
- ΓòÉΓòÉΓòÉ 5.3. Windows ΓòÉΓòÉΓòÉ
-
- This menu contains a list of other windows which may be displayed.
-
-
- ΓòÉΓòÉΓòÉ 5.3.1. Source ΓòÉΓòÉΓòÉ
-
- This menu item causes the source window to be displayed.
-
-
- ΓòÉΓòÉΓòÉ 5.3.2. Console ΓòÉΓòÉΓòÉ
-
- This menu item causes the console window to be displayed.
-
-
- ΓòÉΓòÉΓòÉ 5.3.3. Keys help ΓòÉΓòÉΓòÉ
-
- The following keys are available in the source window:
-
- ctrl+a See the Add a Watch Variable menu item.
-
- ctrl+d See the Delete a Watch Variable menu item.
-
- ctrl+s See the Source menu item.
-
- ctrl+c See the Console menu item.
-
- Other keys respond the same as keys in multi-line edit windows.
-
-
- ΓòÉΓòÉΓòÉ 5.3.4. Product information ΓòÉΓòÉΓòÉ
-
- This menu item shows product information.
-
-
- ΓòÉΓòÉΓòÉ 6. Console window ΓòÉΓòÉΓòÉ
-
- The console window contains input and output from the Rexx macro. Each type of
- input and output can be captured or not, and hidden or not.
-
- When capture is on for a type input or output, that data is added to the
- console window. When capture is off, that data is NOT added to the console
- window. Capture is on by default for all types of input and output, except
- trace output. Capture trace output can significantly degrade the performance
- of RxD.
-
- When a type of input or output is hidden, it is temporarily hidden from view.
- When un-hidden (by toggling the menu item so it is no longer checked), the data
- is displayed again.
-
-
- ΓòÉΓòÉΓòÉ 6.1. Actions ΓòÉΓòÉΓòÉ
-
- The Actions menu list various actions that can be performed in this window.
-
-
- ΓòÉΓòÉΓòÉ 6.1.1. Clear ΓòÉΓòÉΓòÉ
-
- This menu item clears the contents of the console window
-
-
- ΓòÉΓòÉΓòÉ 6.2. Capture ΓòÉΓòÉΓòÉ
-
- This menu lists the input and output types that may be captured.
-
-
- ΓòÉΓòÉΓòÉ 6.2.1. Capture say output ΓòÉΓòÉΓòÉ
-
- Captures (or not) output from the say statement.
-
-
- ΓòÉΓòÉΓòÉ 6.2.2. Capture standard output ΓòÉΓòÉΓòÉ
-
- Captures (or not) standard output.
-
-
- ΓòÉΓòÉΓòÉ 6.2.3. Capture standard error ΓòÉΓòÉΓòÉ
-
- Captures (or not) standard error.
-
-
- ΓòÉΓòÉΓòÉ 6.2.4. Capture trace output ΓòÉΓòÉΓòÉ
-
- Captures (or not) diagnostic trace output. Off by default since it will
- degrade RxD performance if left on.
-
-
- ΓòÉΓòÉΓòÉ 6.2.5. Capture pull input ΓòÉΓòÉΓòÉ
-
- Captures (or not) data retrieved from the pull or parse pull statement.
-
-
- ΓòÉΓòÉΓòÉ 6.3. Hide ΓòÉΓòÉΓòÉ
-
- This menu lists the input and output types that may be hidden.
-
-
- ΓòÉΓòÉΓòÉ 6.3.1. Hide say output ΓòÉΓòÉΓòÉ
-
- Hides (or shows) output from the say statement.
-
-
- ΓòÉΓòÉΓòÉ 6.3.2. Hide standard output ΓòÉΓòÉΓòÉ
-
- Hides (or shows) standard output.
-
-
- ΓòÉΓòÉΓòÉ 6.3.3. Hide standard error ΓòÉΓòÉΓòÉ
-
- Hides (or shows) standard error.
-
-
- ΓòÉΓòÉΓòÉ 6.3.4. Hide trace output ΓòÉΓòÉΓòÉ
-
- Hides (or shows) diagnostic trace output.
-
-
- ΓòÉΓòÉΓòÉ 6.3.5. Hide pull input ΓòÉΓòÉΓòÉ
-
- Hides (or shows) lines retrieved from the pull or parse pull statement.
-
-
- ΓòÉΓòÉΓòÉ 6.4. Settings ΓòÉΓòÉΓòÉ
-
- This menu contains actions pertaining to customizable settings for the window.
-
-
- ΓòÉΓòÉΓòÉ 6.4.1. Color ΓòÉΓòÉΓòÉ
-
- This menu item displays a dialog which allows you to select the colors used for
- various items in the window.
-
-
- ΓòÉΓòÉΓòÉ 6.4.2. Font ΓòÉΓòÉΓòÉ
-
- This menu item displays a dialog which allows you to select the font to be used
- for the text in the window.
-
-
- ΓòÉΓòÉΓòÉ 6.4.3. Save window size and position ΓòÉΓòÉΓòÉ
-
- This menu item causes the current size and position of the window to be saved.
- The next time RxD is run and this window is displayed, it will be placed in the
- same position and have the same size.
-
-
- ΓòÉΓòÉΓòÉ 6.5. Windows ΓòÉΓòÉΓòÉ
-
- This menu contains a list of other windows which may be displayed.
-
-
- ΓòÉΓòÉΓòÉ 6.5.1. Source ΓòÉΓòÉΓòÉ
-
- This menu item causes the source window to be displayed.
-
-
- ΓòÉΓòÉΓòÉ 6.5.2. Watch ΓòÉΓòÉΓòÉ
-
- This menu item causes the watch window to be displayed.
-
-
- ΓòÉΓòÉΓòÉ 6.5.3. Keys help ΓòÉΓòÉΓòÉ
-
- The following keys are available in the source window:
-
- ctrl+s See the Source menu item.
-
- ctrl+w See the Watch menu item.
-
- Other keys respond the same as keys in multi-line edit windows.
-
-
- ΓòÉΓòÉΓòÉ 6.5.4. Product information ΓòÉΓòÉΓòÉ
-
- This menu item shows product information.
-
-
- ΓòÉΓòÉΓòÉ 7. Console input dialog ΓòÉΓòÉΓòÉ
-
- This dialog is prompting you for a line of input. Enter the line and press
- Enter to continue. Press Esc or Enter with an empty line to Cancel.
-
-
- ΓòÉΓòÉΓòÉ 7.1. Console input entry field ΓòÉΓòÉΓòÉ
-
- This dialog is prompting you for a line of input. Enter the line and press
- Enter to continue. Press Esc or Enter with an empty line to Cancel.
-
-
- ΓòÉΓòÉΓòÉ 8. Add variable dialog ΓòÉΓòÉΓòÉ
-
- This dialog is prompting you for a variable name to be watched. Enter the
- variable name and press Enter to continue. Press Esc or Enter with an empty
- line to Cancel.
-
-
- ΓòÉΓòÉΓòÉ 8.1. Add variable entry field ΓòÉΓòÉΓòÉ
-
- This dialog is prompting you for a variable name to be watched. Enter the
- variable name and press Enter to continue. Press Esc or Enter with an empty
- line to Cancel.
-
-
- ΓòÉΓòÉΓòÉ 9. Color dialog ΓòÉΓòÉΓòÉ
-
- This dialog allows you to choose a color to be associated with some text
- displayed by RxD. Selecting a text type will display the current color for
- that text. Changing the color by selecting with cursor or mouse will change it
- in the application. Selecting Cancel will restore the previous color choice.
- Selecting Ok will save the current color for the next invocation of RxD.
-
-
- ΓòÉΓòÉΓòÉ 9.1. Output type list ΓòÉΓòÉΓòÉ
-
- This list displays the types of text that may be colored in this window.
-
-
- ΓòÉΓòÉΓòÉ 9.2. Color values ΓòÉΓòÉΓòÉ
-
- This value set displays the possible colors that can be associated with a type
- of text.