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-rw-r--r--ChangeLog11
-rw-r--r--libidu/scanners.c4
-rw-r--r--testsuite/Makefile.am7
-rwxr-xr-xtestsuite/infloop-kawa-el58
4 files changed, 77 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index a9f18bc..4b7996f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2007-01-19 Jim Meyering <jim@meyering.net>
+
+ Temporary fix simply to avoid the infloop.
+ * libidu/scanners.c (get_token_lisp): Disable the code that
+ treats '[]' as part of a kawa identifier. It could call ungetc
+ two or three times in a row. One is the maximum.
+ * testsuite/infloop-kawa-el: New file. Test for the above.
+ * testsuite/Makefile.am (TESTS): Add infloop-kawa-el.
+ (TESTS_ENVIRONMENT): Prepend build directory to PATH so that
+ invoking e.g., "mkid" runs the just-built version of the tool.
+
2006-11-25 Claudio Fontana <claudio@gnu.org>
* libidu/scanners.c (get_token_lisp): provide rough support for
diff --git a/libidu/scanners.c b/libidu/scanners.c
index 112fd43..6a302bf 100644
--- a/libidu/scanners.c
+++ b/libidu/scanners.c
@@ -1,5 +1,5 @@
/* scanners.c -- file & directory name manipulations
- Copyright (C) 1986, 1995, 1996, 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1986, 1995, 1996, 1999, 2000, 2007 Free Software Foundation, Inc.
Written by Greg McGary <gkm@gnu.ai.mit.edu>
This program is free software; you can redistribute it and/or modify
@@ -1749,7 +1749,7 @@ get_token_lisp (FILE *in_FILE, void const *args, int *flags)
{
while (is_IDENT (c = getc (in_FILE)))
*id++ = c;
- if (c == '[')
+ if (0 /* c == '[' */)
{
c = getc (in_FILE);
if (c == ']')
diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am
index b932992..cce9c0f 100644
--- a/testsuite/Makefile.am
+++ b/testsuite/Makefile.am
@@ -1,6 +1,11 @@
## Process this file with automake to create Makefile.in
-TESTS = consistency
+TESTS = \
+ consistency \
+ infloop-kawa-el
+
+TESTS_ENVIRONMENT = \
+ PATH="$(abs_builddir)/../src$(PATH_SEPARATOR)$$PATH"
EXTRA_DIST = $(TESTS) single_file_token_bug.c
diff --git a/testsuite/infloop-kawa-el b/testsuite/infloop-kawa-el
new file mode 100755
index 0000000..7849e16
--- /dev/null
+++ b/testsuite/infloop-kawa-el
@@ -0,0 +1,58 @@
+#!/bin/sh
+# This would provoke an infloop with source from 4.2+ (cvs as of 2007-01-19).
+
+# Copyright (C) 2007 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+if test "$VERBOSE" = yes; then
+ set -x
+ mkid --version
+fi
+
+pwd=`pwd`
+t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
+trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
+trap '(exit $?); exit $?' 1 2 13 15
+
+framework_failure=0
+mkdir -p $tmp || framework_failure=1
+cd $tmp || framework_failure=1
+echo 'boo[! bar[]' > f.el || framework_failure=1
+
+# FIXME: The expected output should probably be these two lines:
+# bar
+# boo[]
+# but the code to handle that (now-disabled) did a double-ungetc.
+cat <<EOF > exp || framework_failure=1 # expect no output
+bar
+boo
+EOF
+
+if test $framework_failure = 1; then
+ echo "$0: failure in testing framework" 1>&2
+ (exit 1); exit 1
+fi
+
+fail=0
+
+mkid f.el > out || fail=1
+aid -R none b >> out || fail=1
+
+cmp out exp || fail=1
+test $fail = 1 && diff out exp 2> /dev/null
+
+(exit $fail); exit $fail