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From: | David Kastrup |
Subject: | Re: Guile: What's wrong with this? |
Date: | Wed, 04 Jan 2012 21:20:04 +0100 |
User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/24.0.92 (gnu/linux) |
Bruce Korb <address@hidden> writes: > Who knows where I learned the idiom. I learned the minimal amount of > Guile needed for my purposes a dozen years ago. My actual problem > stems from this: > >> Backtrace: >> In ice-9/boot-9.scm: >> 170: 3 [catch #t #<catch-closure 8b75a0> ...] >> In unknown file: >> ?: 2 [catch-closure] >> In ice-9/eval.scm: >> 420: 1 [eval # ()] >> In unknown file: >> ?: 0 [string-upcase ""] >> >> ERROR: In procedure string-upcase: >> ERROR: string is read-only: "" >> Scheme evaluation error. AutoGen ABEND-ing in template >> confmacs.tlib on line 209 >> Failing Guile command: = = = = = >> >> (set! tmp-text (get "act-text")) >> (set! TMP-text (string-upcase tmp-text)) > > What in heck is string-upcase doing trying to write to its input > string? This looks like it might be just a bug. Could be that string-upcase creates its own copy of the string incorrectly including the immutable bit and then tries changing the string. No reason to play helter-skelter with the language. Instead the bug should be fixed. -- David Kastrup
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