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bug#16294: 24.3.50; debugger error: "button-at: Args out of range: 0"
From: |
Drew Adams |
Subject: |
bug#16294: 24.3.50; debugger error: "button-at: Args out of range: 0" |
Date: |
Sun, 29 Dec 2013 14:39:33 -0800 (PST) |
In the debugger (`debug', not `edebug'), I get to this:
(cond ((string-match-p "\\`[0-9a-fA-F]+\\'" input)
(string-to-number input 16))
((string-match-p "^#" input)
(read input))
(t
(cddr (assoc-string input mctized-cands t))))
Then, when it tried to evaluate this sexp:
(string-match-p "\\`[0-9a-fA-F]+\\'" input), which I can evaluate with
no problem using `e', the debugger is exited in error, with the
message "button-at: Args out of range: 0".
FWIW, the value of INPUT was this (a propertized string):
#("DEVICE CONTROL FOUR ^T" 0 1 (face nil) 1 21 (face nil))
(The "^T" is actually the single control character Control-T. Changed
to the string "^T" for the bug report.)
Evaluating it using `e' returns nil, as expected. Similarly, using `e'
I can evaluate (string-match-p "^#" input), to nil.
If I turn off debugging, the code works fine. The debugger itself seems
to have a problem with it.
(Var `lexical-binding' is nil, here. The code uses dynamic scoping.)
In GNU Emacs 24.3.50.1 (i686-pc-mingw32)
of 2013-12-27 on ODIEONE
Bzr revision: 115778 rgm@gnu.org-20131228000456-1797o8z6veuyozs0
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
`configure --prefix=/c/Devel/emacs/binary --enable-checking=yes,glyphs
'CFLAGS=-O0 -g3' LDFLAGS=-Lc:/Devel/emacs/lib
CPPFLAGS=-Ic:/Devel/emacs/include'
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- bug#16294: 24.3.50; debugger error: "button-at: Args out of range: 0",
Drew Adams <=