generate gcc tags from header

generate_sed.sh

#!/bin/bash
if [ $# -eq 0 ];then
    dir=.
else
    dir=$1
fi

#Substitute scripts
cat > .edit.sed <<- EOF
s/\b_GLIBCXX_BEGIN_NAMESPACE\b\s*\(\s*(\w+)\s*\)/namespace \1{/g
s/_GLIBCXX_BEGIN_NESTED_NAMESPACE\s*\(\s*std\s*,\s*_GLIBCXX_STD_[DP]\s*\)/namespace std{/g
s/\b_GLIBCXX_END_NAMESPACE\b/}/g
s/\b_GLIBCXX_END_(NESTED_\?NAMESPACE\b/}/g
EOF

count=0
cols=`tput cols`
cols=`echo "$cols - 8"|bc`
for file in `find $dir -type f`;do
    if [ "T"$file != "T"$0 ];then
        sed -nf ".edit.sed" $file
        count=`echo "$count+1"|bc`
        echo -ne "="
        if [ `echo "$count%$cols"|bc` -eq 0 ];then
            echo " $count"
        fi
    fi
done

echo "Processed $count files!"
rm -fr .edit.sed

# Generate ctag file
ctags -R --c++-kinds=+p --fields=+iaS --extra=+q 
echo "generated tag file!"