2014-11-04 19:07:18 +01:00
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README
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======
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2014-11-07 22:03:03 +01:00
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Introduction
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============
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2014-11-04 19:07:18 +01:00
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Bas is an interpreter for the classic dialect of the programming language
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BASIC. It is pretty compatible to typical BASIC interpreters of the 1980s,
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unlike some other UNIX BASIC interpreters, that implement a different
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syntax, breaking compatibility to existing programs. Bas offers many ANSI
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BASIC statements for structured programming, such as procedures, local
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variables and various loop types. Further there are matrix operations,
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automatic LIST indentation and many statements and functions found in
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specific classic dialects. Line numbers are not required.
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The interpreter tokenises the source and resolves references to variables
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and jump targets before running the program. This compilation pass
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increases efficiency and catches syntax errors, type errors and references
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to variables that are never initialised. Bas is written in ANSI C for
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UNIX systems.
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License
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=======
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BAS 2.4 is released as part of NuttX under the standard 3-clause BSD license
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use by all components of NuttX. This is not incompatible with the original
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BAS 2.4 licensing
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Copyright (c) 1999-2014 Michael Haardt
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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Bas 2.4 Release Notes
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=====================
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Changes compared to version 2.3
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o Matrix inversion on integer arrays with option base 1 fixed
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o PRINT USING behaviour for ! fixed
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o PRINT , separator should advance to the next zone, even if the current
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position is at the start of a zone
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o Added ip(), frac(), fp(), log10(), log2(), min() and max()
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o Fixed NEXT checking the variable case sensitive
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o Use terminfo capability cr to make use of its padding
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o LET segmentation fault fixed
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o PRINT now uses print items
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o -r for restricted operation
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o MAT INPUT does not drop excess arguments, but uses them for the
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next row
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o License changed to MIT
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