User:Scsbot/examples/addrhyme

file="$1"
rhyme="$2"
rhymebase="Rhymes:English:"

if test -z "$file" -o -z "$rhyme"
then
	echo "arg count" >&2
	exit 1
fi

lang="English"

# 1. find English section

# 1a. Find level-2 headers

	l2hdrs=`grep -n '^== *[^=][^=]*==' $file`

	if test -z "$l2hdrs"
	then
		echo "no level 2 (language) headers"
		exit 1
	fi

	nl=`echo "$l2hdrs" | grep -ic "^[1-9][0-9]*:== *$lang *=="`

	if test $nl -ne 1
	then
		echo "article has $nl sections for $lang"
		exit 1
	fi

# find end of English section --
# either next level-2 header, or EOF

	li=`echo "$l2hdrs" | grep -n "^[1-9][0-9]*:== *$lang *==" | sed 's/:.*//'` # line in $l2hdrs

	el=`echo "$l2hdrs" | grep "^[1-9][0-9]*:== *$lang *==" | sed 's/:.*//'`    # line in $file

	nl2=`echo "$l2hdrs" | wc -l`

	if test $li -lt $nl2
	then
		li2=`expr $li + 1`
		eoe=`echo "$l2hdrs" | line $li2 | sed 's/:.*//'`
		eoe=`expr $eoe - 1`
	else
		eoe=`wc -l < $file`
	fi

	# now grab pronunciation lines between

# 2. Find Pronunciation header(s)

prohdrs=`line -f $el -t $eoe $file | grep -n '^==* *Pronunciation *='`

needprohdr=no

if test -z "$prohdrs"
then
	echo "adding Pronunciation section" >&2
	needprohdr=yes
elif test `echo "$prohdrs" | wc -l` -gt 1
	then
		echo "multiple Pronunciation sections in $lang section"
		exit 1
	fi

if test $needprohdr = no
then

# now find next header (any level) after target pronunciation header

proline=`expr "$prohdrs" : '\([^:]*\)'`

nxthdr=`line -f $el -t $eoe $file | grep -n '^=' | awk -F: "\\$1 > $proline {print; exit}"`

if test -n "$nxthdr"
then
	nxtline=`expr "$nxthdr" : '\([^:]*\)'`
else
	nxtline=`expr $eoe - $el + 1 + 1`
fi

proline=`expr $el + $proline - 1`
nxtline=`expr $el + $nxtline - 1`

# echo "pronunciation line: $proline"
# echo "next header line: $nxtline"

# now count blank lines preceding $nxtline

i=`expr $nxtline - 1`
while test $i -gt $proline
do
	if line $i $file | grep -q .
	then	break
	fi
	i=`expr $i - 1`
done

else

	# If there's an Etymology section, insert after that.
	# Otherwise insert at beginning of English section.

	etyhdr=`line -f $el -t $eoe $file | grep -n '^==* *Etymology' | head -1`

	if test -n "$etyhdr"
	then
		etyline=`expr "$etyhdr" : '\([^:]*\)'`
		firstline=$etyline
	else
		firstline=1	# in $el space
	fi

	# find next header (any header)

	nxthdr=`line -f $el -t $eoe $file | grep -n '^=' | awk -F: "\\$1 > $firstline {print; exit}"`

	if test -n "$nxthdr"
	then
		nxtline=`expr "$nxthdr" : '\([^:]*\)'`
	else
		nxtline=`expr $eoe - $el + 1 + 1`
	fi

	nxtline=`expr $el + $nxtline - 1`

	i=`expr $nxtline - 1`

	# now count blank lines preceding $nxtline

	needtrailing=yes

	while test $i -gt $firstline
	do
		if line $i $file | grep -q .
		then	break
		fi
		needtrailing=no
		i=`expr $i - 1`
	done
fi

# now $i is line to insert after

nins=1
if test $needprohdr = yes
then
	nins=`expr $nins + 2`
	if test "$needtrailing" = yes
	then	 nins=`expr $nins + 1`
	fi
fi

(
echo ${i}a

if test $needprohdr = yes
then
	echo
	echo "===Pronunciation==="
fi

echo "*:Rhymes: [[$rhymebase$rhyme|$rhyme]]"

if test $needprohdr = yes -a "$needtrailing" = yes
then	 echo
fi

echo .
echo w
) | ed - $file

echo "expect $nins insertions"

exit 0