This release allows isolated boxes left in a subchart to be deleted. I have also included another example flowchart that gets a little bit more intensive. It demonstrates the way you can order your flowcharts like DOS organises directorys and sub-directorys.
You can now also pass the name of a flowchart from the command line when you start CHART from the DOS prompt. You include the path and filename to your flowchart with the /F argument, like
CHART /F SOURCE\CHART.FLO
followed by the <ENTER> key.
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Version 1.22
Bug 1 Would hang CHART if the 'Insufficient memory' error message is reported.
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Version 1.21
Two minor bug fixes, but nothing much else.
Bug 1 would not restore the contents of the interrupted display on exit from within the flowchart editor with the middle 5 key.
Bug 2 would not show the cursor when editing a box descripter.
Bug 3 - presumably - will cause the program to hang if an argument isn't recognised.
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Version 1.20
Comes with a minor addition so that chart can come up from the background to a secondary display. The arguments go like:
/M stick with MDA text display. Will pop-up onto the MDA compatible text display even if the current display is a CGA compatible text mode.
/C stick with CGA text display. Will pop-up onto the CGA compatible text display even if the current display is a MDA compatible text mode.
Note also, when you call chart up from the background, if you are in the editor then pressing the hot-key - middle 5 on the numeric keypad - will exit from the chart and return to the calling process.
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Version 1.19 16-12-92
Yet another bug fix. This time with the merge chart function.
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Version 1.18 5-12-92
A bug that prevented CHART from shelling to dos if there were any environment variable names 6 characters long has been fixed. I have also made a small fix to the source code.
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Version 1.17 20-11-92
Chart would - again - still hang when called from the background. Now it won't.
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Version 1.15 31-5-92
Minor bug fix; the boxmarks would not be reset when a chart is cleared from memory and would still think the boxes were still being used.
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Version 1.14 8-5-92
A bug has been fixed that would hang the system if called up from the background. This would happen if nested inside sub-charts.
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Version 1.13 1-5-92
There is a bug fix with Version 1.13 that shouldn't cause any problems under normal circumstances. That is, if none of your boxes in your FlowChart have two routes that point to the same box. If there is such a box, then renumbering your FlowChart would cause all boxes numbered after that box to get out of step.
I have added a boxmark facility. Basically you have 9 boxmarks to link to a box, you choose a buffer number from 0 to 9, and press that numbered function key. That is, if you want to use boxmark 1 press the F1 key to set the boxmark.
Once linked, press the digit key with the same number to return to the box you marked. That is, press a key numbered 0 to 9 either on the top row of the main keyboard or on the numeric keypad.
By the way, it is possible to redirect CHARTs screen output via the ROM BIOS instead of writing directly to video memory. Writing to the screen this way won't affect the functionality of CHART other than to just slow it down. However, some PC compatibles differ in their video architecture which means screen output must go via the BIOS.
To enable/disable screen output via the BIOS just press the - minus key either on the numeric keypad or on the top row of the main keyboard.
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Version 1.12 14-4-92
A bug has been fixed that would unlink a box and split the chart up. If this has happened then the fragmented portion of the chart will still be there. You can 'relink' the boxes with the 'Branch' option and using the 'Goto' option if you can remember the box number. The box number could be the next number following the box with the route that was unlinked.
I have added an option to 'relink' a route back to the first box in the chart/sub-chart incase it is not possible to move back. The HOME key will do this.
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Version 1.11 9-4-92
I have been using CHART a lot recently designing the next version of PcWord. While I have been using it I have fixed bugs and improved and added features to it.
It is only since I have been using it for this project that I realised how big a project can be; with a configuration of 512k bytes, CHART can store - in memory - upto about 8000 boxes in one flowchart, each box with an average of say 40 characters.
The 'R)unlink' option has been improved so that any route - unless it is the only route - to a box can be unlinked.
Also, I have included a Search function that will search each box descripter for a string.
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Version 1.10 2-4-92
I have fixed a bug that would occasionally overwrite one or more box descripter strings.
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Now you can merge new charts on disk into the existing chart in memory. Basically, the chart from disk is merged as the sub-chart of the current box. So, the current box cannot already be the parent of a sub-chart if you want to merge another from disk.
To replace the current chart with another on disk then clear the current chart from the main menu and load the new chart.
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A new option will change the type of the current box. It will change a decision box into a unary function box or vice versa. In order to convert a decision box to a unary function box there must be no more than one FIXED routes - ie. a route that was created from the box - leading from the box.
If the box is a decision box and the 'yes' route is fixed then it will be moved to the 'no' route.
