def std_string(args, ctxt=None):
"convert argument into a string, default is context node"
argver(args, maxargs=1)
if len(args) > 0:
return core.string(args[0])
elif ctxt:
return core.string(ctxt.nodelist[0])
def std_normalize_space(args, ctxt):
"remove all leading/trailing ws, all internal ws rep as single space"
argver(args, maxargs=1)
if len(args) > 0:
s = core.string(args[0])
elif ctxt:
s = core.string(ctxt.nodelist[0])
else: return ""
return ' '.join(s.split())
