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jesboat / utils.rkt
Created May 25, 2011 22:38
type-case and list-case for typed/racket
(define-syntax (type-case stx)
(define (add-huh s)
(datum->syntax stx (string->symbol (string-append (symbol->string (syntax-e s)) "?"))))
(syntax-case stx ()
[(_ val
[(ty field ...) body]
...)
(with-syntax ([(p ...) (map add-huh (syntax-e #'(ty ...)))])
#'(let ([v val])
(cond
@jesboat
jesboat / find-in-ash.noemptydirs.sh
Created November 29, 2011 23:04
Roughly equivalent to "find .", only in less-than-POSIX ash
#!/system/bin/sh
stat() {
local lsout="$(ls -ld "$1" 2>/dev/null)"
case "$lsout" in
"") nex=1; fil= ; dir= ;;
d*) nex= ; fil= ; dir=1 ;;
*) nex= ; fil=1; dir= ;;
esac
}
@jesboat
jesboat / svg.svg
Created January 21, 2012 00:52 — forked from anonymous/svggenerated.xml
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@jesboat
jesboat / gist:1685474
Created January 26, 2012 22:20
Timing multiple value return techniques
running automated test.
noMultipleValues time 431
noMultipleValues time 419
noMultipleValues time 427
noMultipleValues time 429
noMultipleValues time 421
@jesboat
jesboat / gist:1685492
Created January 26, 2012 22:23
Timing multiple value return techniques
running automated test.
noMultipleValues time 433
noMultipleValues time 426
noMultipleValues time 412
noMultipleValues time 412
noMultipleValues time 417
noMultipleValues time 416
@jesboat
jesboat / gist:1686144
Created January 27, 2012 00:33
Timing multiple value return techniques
running automated test.
noMultipleValues time 4131
noMultipleValues time 4133
noMultipleValues time 4128
noMultipleValues time 4204
noMultipleValues time 4122
noMultipleValues time 4121
@jesboat
jesboat / false.c
Created January 30, 2012 22:43
#define EXIT_STATUS EXIT_FAILURE
#include "true.c"
@jesboat
jesboat / this.svg
Created February 6, 2012 07:23
<svg width="30cm" height="9cm" viewBox="0 0 1000 300" version="1.1"
xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
<!-- show outline of canvas -->
<rect x="1" y="1" width="998" height="298"
fill="none" stroke="red" stroke-width="2"/>
<path d="M 0 150 L 1000 150" stroke="red" stroke-width="1"/>
<path d="M 500 0 L 500 300" stroke="red" stroke-width="1"/>
@jesboat
jesboat / foo.svg
Created February 6, 2012 17:35
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@jesboat
jesboat / gist:1873291
Created February 21, 2012 03:04
.^
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