npiet-foogol − a foogol to piet compiler
npiet-foogol [ −v | −d ] [ -w <n> ] [ -b <n> ] [ -cs <n> ] inputfile
npiet-foogol translates foogol input to a piet program. So npiet-foogol creates a picture from foogol source. The picture is, well should be, a valid piet program and can be executed, eg. by the npiet interpreter.
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−h |
print usage help and exit. | ||
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−v |
be somewhat verbose. | ||
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−d |
print debug output (lot’s of more or less cryptic and mostly useless blurb). | ||
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−w <n> |
Sets a wrap-width in pixel. This gives the compiler a hint about a block width to use when generating expressions or statements. |
Usually code is generated left to right until the wrap-width is reached and then to the left. To avoid codel overlaps in loops and conditionals, code is generated with a virtual left border, but this wrap-width too. Here is lot of optimisation possible.
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−b <n> |
Sets the base used by generating a number. The default is 7 and a value greater or equal of 2 is acceptable. |
In a piet program the number of codels (here pixels) of a color block represents a number. To be able to push a large number on the stack without wasting a lot of ink, the number is calculated and the given base is used to do so.
−cs <n>
Sets the output codel size to n pixels. The default is 1. Use a higher value to get a larger output picture.
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−rnd |
Experimental feature to set the start codel not always to red, but to a somewhat more random value. This does not work reliable - please avoid if running in trouble... |
−o <filename> Sets the output filename. Default is npiet-foogol.png.
inputfile
The foogol program to read. Use a - to read from <stdin>.
npiet-foogol.png - default name of the piet program file to write. It is overwritten if it exists.
Erik Schoenfelder <schoenfr@web.de>.
Surely lots.
npiet(1),
npietedit(1)
http://www.bertnase.de/npiet/