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routines (
mark_regions
main_suffix
consonant_pair
other_suffix
)
externals ( stem )
integers ( p1 x )
groupings ( v s_ending )
stringescapes {}
/* special characters */
stringdef ae '{U+00E6}'
stringdef ao '{U+00E5}'
stringdef o/ '{U+00F8}'
define v 'aeiouy{ae}{ao}{o/}'
define s_ending 'bcdfghjlmnoprtvyz'
define mark_regions as (
$p1 = limit
test ( hop 3 setmark x )
goto v gopast non-v setmark p1
try ( $p1 < x $p1 = x )
)
backwardmode (
define main_suffix as (
setlimit tomark p1 for ([substring])
among(
'a' 'e' 'ede' 'ande' 'ende' 'ane' 'ene' 'hetene' 'en' 'heten' 'ar'
'er' 'heter' 'as' 'es' 'edes' 'endes' 'enes' 'hetenes' 'ens'
'hetens' 'ers' 'ets' 'et' 'het' 'ast'
(delete)
's'
(s_ending or ('k' non-v) delete)
'erte' 'ert'
(<-'er')
)
)
define consonant_pair as (
test (
setlimit tomark p1 for ([substring])
among(
'dt' 'vt'
)
)
next] delete
)
define other_suffix as (
setlimit tomark p1 for ([substring])
among(
'leg' 'eleg' 'ig' 'eig' 'lig' 'elig' 'els' 'lov' 'elov' 'slov'
'hetslov'
(delete)
)
)
)
define stem as (
do mark_regions
backwards (
do main_suffix
do consonant_pair
do other_suffix
)
)
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