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- BAS2SB - BASIC to Structured BASIC Converter
-
- (c)opyright 1988
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- International No-Bugs Software
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- Program Information
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- INTRODUCTION
-
-
- BAS2SB automates many of the source code re-formatting
- procedures commonly performed when switching over from
- BASICA or GW-BASIC to the new generation of BASIC
- compilers (such as Turbo BASIC or QuickBASIC).
-
-
- BAS2SB programs become much more comprehensible, and as
- a result, much simpler to convert into structured
- formats. This will allow you to take full advantage of
- QuickBASIC or Turbo BASIC.
-
-
- BAS2SB uses a BASIC source code file (ASCII format) as
- its standard input, and returns a newly formatted
- program that includes:
-
- 1) One statement per program line
- 2) IF, THEN, ELSE Nested Indentation
- 3) END IF blocked structures
- 4) Removal of non-targeted line numbers
- 5) Replacement of targeted lines with either
- program generated, or user-supplied labels
-
-
-
- NOTE
-
-
- Don't expect to recognize your new programs immediately.
- BAS2SB does NOT alter variables or actual code, but
- linear programs with meaningful line labels take time to
- adjust to. It is highly advisable to have a hard copy
- of the original (numbered) source code at hand while
- adding mneumonic labels. Each target line can then be
- respresented by the function it performs. You will
- probably find this approach is worth the extra time,
- since it must be performed only once.
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- USING BAS2SB
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- BAS2SB needs very little assistance in converting BASIC
- programs. Listed below are the only requirements:
-
- 1) Program must be in ASCII format (save with ",A").
- 2) Program lines must NOT contain any line-feeds or
- other control characters.
- 3) Program lines must not exceed 255 characters.
- 4) Program source file must have a .BAS extension.
-
-
- BAS2SB does NOT alter the original source file.
- Instead, another file with the extension .SBX is created
- that will run under QuickBASIC and Turbo BASIC.
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- OPERATIONAL NOTES
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- When invoking BAS2SB, you will be prompted for a
- filename. Do NOT include an extension - the only one
- allowed is the default, .BAS.
-
- If the source file is located, BAS2SB will begin to
- reformat the source file by looking at each line
- individually and will present each target line number
- and a prompt for an optional label.
-
- When prompted, you may choose to:
-
- 1) Enter a line label (up to 20 Characters).
-
- 2) Enter a RETURN. (BAS2SB will provide the label).
-
- 3) Enter a period. From that point forward, BAS2SB
- will provide target labels.
-
- The number listed on the LEFT side of the display is the
- source line number being examined.
-
- The number (if any) on the RIGHT side of the display is
- the target line number that was found in a corresponding
- GOTO, GOSUB, THEN, ELSE, etc. Once a target has been
- labeled, further references to that target will be
- automatically replaced without user intervention.
-
-
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- ERROR TRAPPING
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- In the case of ERL references, BAS2SB will retain the
- original line number references in the newly generated
- source file. This allows proper trapping through the
- use of the IF ERL construct.
-
-
- FINAL NOTE
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- BAS2SB performs no error checking. Any BASIC program
- that compiles correctly BEFORE conversion should compile
- correctly AFTER conversion. BAS2SB will not fix
- programs that do not run.
-