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#!/bin/sh
#
# find_dot_no_parens.sh
#
# Look for function names after /^.[BIR]/ that aren't
# followed by "()".
#
# This script is designed to help with "by hand" tidy-ups after
# the automated changes made by add_parens_for_own_funcs.sh.
#
# The first argument to this script names a manual page directory where
# 'man2' and 'man3' subdirectories can be found. The pages names in
# these directories are used to generate a series of regular expressions
# that can be used to search the manual page files that are named in
# the remaining command-line arguments.
#
# Example usage:
#
# cd man-pages-x.yy
# sh find_dots_no_parens.sh . man?/*.? > matches.log
#
######################################################################
#
# (C) Copyright 2005 & 2013, Michael Kerrisk
# 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
# (http://www.gnu.org/licenses/gpl-2.0.html).
#
if test $# -lt 2; then
echo "Usage: $0 man-page-root-dir file file..." 1>&2
exit 1
fi
dir=$1
if ! test -d $dir/man2 || ! test -d $dir/man3; then
echo "Can't find man2 and man3 under $dir" 1>&2
exit 1
fi
shift 1
echo "This will take probably a few moments..." 1>&2
awk_script_file=tmp.$0.awk
rm -f $awk_script_file
# We grep out a few page names that are likely to generate false
# positives...
echo '{' >> $awk_script_file
echo ' myvar = $2;' >> $awk_script_file
echo ' gsub("[^a-z_0-9]*$", "", myvar);' >> $awk_script_file
echo ' if ( myvar == "NOMATCHESFORTHIS" || ' >> $awk_script_file
for page in $(
find $dir/man2/* $dir/man3/* -type f -name '*.[23]' |
egrep -v '/(stderr|stdin|stdout|errno|termios|string)\..$'); do
base=$(basename $page | sed -e 's/\.[23]$//')
echo " myvar == \"$base\" ||" >> $awk_script_file
done
echo ' myvar == "NOMATCHESFORTHIS" )' >> $awk_script_file
echo ' print $0' >> $awk_script_file
echo '}' >> $awk_script_file
grep '^\.[BRI][BRI]* [a-zA-Z0-9_][a-zA-Z0-9_]*[^a-zA-Z_]*$' $* |
awk -f $awk_script_file | grep -v '([0-9]*)'
rm -f $awk_script_file
exit 0
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