Hi, [EMAIL PROTECTED] (r. clayton) writes:
> Both versions of guile-www use make-shared-substring, which doesn't exist > under > guile 1.8. In addition, guile chokes on > > (lambda* (name value #&key path domain expires secure) > > from cgi.scm in guile-www 1.1.1. The fix for the first problem is to replace > make-shared-substring with substring (The > > (define make-shared-substring substring) > > trick outside the module doesn't work and I'm not understanding why; perhaps > because make-shared-substring is being used in a module?). In 1.8, `substring' returns a copy-on-write shared substring by default. This is not exactly like `make-shared-substring' in Guile 1.6 where the returned string is read-only and changes to the parent string are visible in the substring: $ guile-1.6 # Guile 1.6.8 guile> (define s "hello world") guile> (define ss (make-shared-substring s 3 5)) guile> ss "lo" guile> (string-set! ss 0 #\L) standard input:4:1: In procedure string-set! in expression (string-set! ss 0 ...): standard input:4:1: argument is a read-only string ABORT: (misc-error) guile> (string-set! s 4 #\X) guile> ss "lo" guile> s "hellX world" TTN's Guile 1.4.x series provides the same semantics: http://www.gnuvola.org/software/guile/doc/Shared-Substrings.html#index-make_002dshared_002dsubstring-752 So your fix seems reasonable, _provided_ `guile-www' doesn't rely on string mutations and interactions between substrings and their parent string. > I don't know what > the fix for the second problem is because I don't know what #&key is. > However, > replacing it with #:key at least lets cgi load without error. I'm guessing that this is correct (see `(ice-9 optargs)'). > All this is happening on a debian testing system, although the guile-www code > was downloaded and installed by hand (the 2.16 code not recently; because I > don' remember where I got the 2.16 code, there may be more up-to-date versions > that fix this problem). The version of `guile-www' that is maintained by TTN [0] may be targeting his Guile 1.4.x series, hence the incompatibilities you observed. Maybe you could provide him with a patch allowing `guile-www' to be used with both Guile versions? Hope this helps, Ludovic. [0] http://www.gnuvola.org/software/guile-www/ _______________________________________________ Bug-guile mailing list Bug-guile@gnu.org http://lists.gnu.org/mailman/listinfo/bug-guile
