Custom Query (1630 matches)

(require-extension srfi-1) (define (pz lis)

(append-map

(lambda (x) (map (lambda (y)

(print y) (cons x y))

(pz (remove (lambda (y) (eq? y x)) lis))))

lis))

(pz '(a b c d))

;; this is on 5.3.0. ;; prints nothing. But if it's map instead of append-map, it prints stuff.

The culprit appears to be improper path escaping:

C:\>chicken-install srfi-18
building srfi-18
   C:\Users\j\AppData\Local\chicken-install\srfi-18\build-srfi-18.bat -host -D compiling-extension -J -s -regenerate-import-libraries -setup-mode -I C:\Users\j\AppData\Local\chicken-install\srfi-18 -C -IC:\Users\j\AppData\Local\chicken-install\srfi-18 -O2 -d1 srfi-18.scm -o C:\Users\j\AppData\Local\chicken-install\srfi-18\srfi-18.so
'""C:' is not recognized as an internal or external command,
operable program or batch file.
        1 file(s) copied.
'""C:' is not recognized as an internal or external command,
operable program or batch file.

Error: shell command terminated with nonzero exit code
1
"C:\\Users\\j\\AppData\\Local\\chicken-install\\srfi-18\\srfi-18.build.bat"

C:\>

The posix/process function does not return from calls under Windows 7 (Windows Vista seems to work; 32 and 64 bit are inflicted). This problem occures in compiled programms and in the interpreter.

Interestingly the process* function doesn't share this malfunction and I was able to write the following simple workarround:

;; after loading the posix unit (set! process (lambda (#!rest rest)

(receive (a b c d) (apply process* rest)

(values a b c))))

An example for an egg that uses the functionality is the pstk or the tk egg and both seem to work with the above workaround.

CHICKEN (c)2008-2011 The Chicken Team (c)2000-2007 Felix L. Winkelmann Version 4.7.0.4-st windows-mingw32-x86 [ manyargs dload ptables ] compiled 24.12.2011 on Karl_H-Notebook (MinGW)