[chaley]

Originally Posted by ownedbycats

On this topic:

program:
	if raw_field('#percentread') ==# '0' then '1'
	else raw_field('#percentread')
	fi

Running this on a book with #percentread undefined returns result as 1.What is the proper way to make it remain undefined?

I changed it to raw_field('#percentread', '1') and it remained undefined but that felt kludge. Empty string '' returned a 1 not sure why.

Here is what I would do.

program:
	v = raw_field('#myint', '');
	if !v then
		''
	elif v ==# 0 then
		'1'
	else
		 v
	fi

This is the same thing but not using the second parameter of raw_field.

program:
	v = raw_field('#myint');
	if v == 'none' then
		''
	elif v ==# 0 then
		'1'
	else
		 v
	fi