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Optimized snowball code for tamil stemmer #3

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Optimized snowball code for tamil stemmer #3

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f5fc814
Unset found_vetrumai_urupu at the start of stemming routine. Also do
rdamodharan Oct 10, 2015
7aa1ebe
Merge branch 'use_among' of github.com:rdamodharan/snowball
rdamodharan Oct 10, 2015
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79 changes: 39 additions & 40 deletions algorithms/tamil/stem_Unicode.sbl
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Original file line number Diff line number Diff line change
Expand Up @@ -118,7 +118,7 @@ integers (

/*
define q_suffixes '{vs_aa}{vs_oo}{vs_ee}'
define q_prefixes '{e}'
define q_prefixes '{e}'
define word_starter '{ka}{ca}{tha}{va}{na}{pa}{ma}{ya}{nga}{nya}'
define suttezhuthu '{a}{i}{u}'
define vallinam '{ka}{ca}{tta}{tha}{pa}{rra}'
Expand Down Expand Up @@ -236,7 +236,7 @@ define remove_command_suffixes as (
unset found_a_match
backwards (
[ among('{pa}{vs_i}' '{va}{vs_i}') ] delete
(set found_a_match)
(set found_a_match)
)
)

Expand All @@ -250,40 +250,40 @@ define remove_um as (
)

define remove_common_word_endings as (
// These are not suffixes actually but are
// These are not suffixes actually but are
// some words that are attached to other words
// but can be removed for stemming
unset found_a_match
has_min_length
backwards (
test ( [ '{vs_u}{tta}{nnna}{pulli}' or
'{vs_i}{la}{pulli}{la}{vs_ai}' or
'{vs_i}{tta}{ma}{pulli}' or
'{vs_i}{tta}{ma}{pulli}' or
'{vs_i}{nnna}{pulli}{rra}{vs_i}' or
'{vs_aa}{ka}{vs_i}' or
'{vs_aa}{ka}{vs_i}' or
'{vs_aa}{ka}{vs_i}{ya}' or
'{vs_e}{nnna}{pulli}{rra}{vs_u}' or
'{vs_e}{nnna}{pulli}{rra}{vs_u}' or
'{vs_u}{lla}{pulli}{lla}' or
'{vs_u}{tta}{vs_ai}{ya}' or
'{vs_u}{tta}{vs_ai}{ya}' or
'{vs_u}{tta}{vs_ai}' or
'{vs_e}{nnna}{vs_u}{ma}{pulli}' or
('{la}{pulli}{la}' test (not among('{vs_aa}' '{vs_i}' '{vs_ii}' '{vs_e}' '{vs_ee}' '{vs_u}' '{vs_uu}' '{vs_ai}'))) or
'{vs_e}{nnna}' or
'{vs_e}{nnna}' or
'{vs_aa}{ka}{vs_i}' ] <- '{pulli}'
(set found_a_match)
)
or
test ( [ among('{pa}{tta}{vs_u}'
'{pa}{tta}{pulli}{tta}'
test ( [ among('{pa}{tta}{vs_u}'
'{pa}{tta}{pulli}{tta}'
'{pa}{tta}{pulli}{tta}{vs_u}'
'{pa}{tta}{pulli}{tta}{ta}{vs_u}'
'{pa}{tta}{pulli}{tta}{nna}'
'{ka}{vs_u}{ra}{vs_i}{ya}'
'{pa}{tta}{pulli}{tta}{ta}{vs_u}'
'{pa}{tta}{pulli}{tta}{nna}'
'{ka}{vs_u}{ra}{vs_i}{ya}'
'{pa}{rra}{pulli}{rra}{vs_i}'
'{va}{vs_i}{tta}{vs_u}'
'{va}{vs_i}{tta}{pulli}{tta}{vs_u}'
'{pa}{tta}{vs_i}{ta}{vs_aa}{nnna}'
'{pa}{tta}{vs_i}'
'{pa}{tta}{vs_i}'
'{ta}{vs_aa}{nnna}'
'{vs_e}{la}{pulli}{la}{vs_aa}{ma}{pulli}')
] delete
Expand All @@ -305,35 +305,34 @@ define remove_vetrumai_urupukal as (
'{vs_ai}' (test not among('{ka}' '{ca}' '{tta}' '{tha}' '{pa}' '{rra}'))) or
( '{vs_ai}' (test (among('{ka}' '{ca}' '{tta}' '{tha}' '{pa}' '{rra}') '{pulli}')))
] <- '{pulli}'

)
or
test ( [
'{vs_o}{tta}{vs_u}' or
test ( [
'{vs_o}{tta}{vs_u}' or
'{vs_oo}{tta}{vs_u}' or
'{vs_i}{la}{pulli}' or
'{vs_i}{la}{pulli}' or
'{vs_i}{rra}{pulli}' or
('{vs_i}{nnna}{pulli}' (test not '{ma}')) or
'{vs_i}{nnna}{pulli}{rra}{vs_u}' or
'{vs_i}{ra}{vs_u}{na}{pulli}{ta}{vs_u}' or
'{va}{vs_i}{tta}' or
'{va}{vs_i}{tta}' or
($length >= 7 '{vs_i}{tta}{ma}{pulli}') or
'{vs_aa}{la}{pulli}' or
'{vs_aa}{la}{pulli}' or
'{vs_u}{tta}{vs_ai}' or
'{vs_aa}{ma}{la}{pulli}' or
('{la}{pulli}' (test not among('{vs_aa}' '{vs_i}' '{vs_ii}' '{vs_e}' '{vs_ee}' '{vs_u}' '{vs_uu}' '{vs_ai}'))) or
'{vs_u}{lla}{pulli}'
'{vs_u}{lla}{pulli}'
] <- '{pulli}'
)
or
test ( [
'{ka}{nna}{pulli}' or
test ( [
'{ka}{nna}{pulli}' or
'{ma}{vs_u}{nnna}{pulli}' or
'{ma}{vs_ee}{la}{pulli}' or
'{ma}{vs_ee}{la}{pulli}' or
'{ma}{vs_ee}{rra}{pulli}' or
'{ka}{vs_ii}{llla}{pulli}' or
'{ka}{vs_ii}{llla}{pulli}' or
'{pa}{vs_i}{nnna}{pulli}' or
('{ta}{vs_u}' (test not among('{vs_aa}' '{vs_i}' '{vs_ii}' '{vs_e}' '{vs_ee}' '{vs_u}' '{vs_uu}' '{vs_ai}')))
('{ta}{vs_u}' (test not among('{vs_aa}' '{vs_i}' '{vs_ii}' '{vs_e}' '{vs_ee}' '{vs_u}' '{vs_uu}' '{vs_ai}')))
] delete
)
or
Expand Down Expand Up @@ -364,30 +363,30 @@ define remove_tense_suffix as (
)
or
test ( [
'{ma}{vs_aa}{ra}{pulli}' or
'{ma}{vs_aa}{ra}{pulli}' or
'{ma}{vs_i}{nnna}{pulli}' or
'{nnna}{nnna}{pulli}' or
'{nnna}{nnna}{pulli}' or
'{nnna}{vs_aa}{nnna}{pulli}' or
'{nnna}{vs_aa}{lla}{pulli}' or
'{nnna}{vs_aa}{lla}{pulli}' or
'{nnna}{vs_aa}{ra}{pulli}' or
('{va}{nnna}{pulli}' test (not among('{a}' '{aa}' '{i}' '{ii}' '{u}' '{uu}' '{e}' '{ee}' '{ai}' '{o}' '{oo}' '{au}')) ) or
'{nnna}{lla}{pulli}' or
'{nnna}{lla}{pulli}' or
'{va}{lla}{pulli}' or
'{nnna}{ra}{pulli}' or
'{nnna}{ra}{pulli}' or
'{va}{ra}{pulli}' or
'{nnna}' or '{pa}' or '{ka}' or '{ta}' or '{ya}' or
'{pa}{nnna}{pulli}' or
'{pa}{nnna}{pulli}' or
'{pa}{lla}{pulli}' or
'{pa}{ra}{pulli}' or
('{ta}{vs_u}' (test not among('{vs_aa}' '{vs_i}' '{vs_ii}' '{vs_e}' '{vs_ee}' '{vs_u}' '{vs_uu}' '{vs_ai}'))) or
'{vs_i}{rra}{pulli}{rra}{vs_u}' or
'{pa}{ma}{pulli}' or
'{pa}{ma}{pulli}' or
'{nnna}{ma}{pulli}' or
'{ta}{vs_u}{ma}{pulli}' or
'{ta}{vs_u}{ma}{pulli}' or
'{rra}{vs_u}{ma}{pulli}' or
'{ka}{vs_u}{ma}{pulli}' or
'{ka}{vs_u}{ma}{pulli}' or
'{nnna}{vs_e}{nnna}{pulli}' or
'{nnna}{vs_ai}' or
'{nnna}{vs_ai}' or
'{va}{vs_ai}'
] delete
(set found_a_match)
Expand All @@ -397,11 +396,11 @@ define remove_tense_suffix as (
('{vs_aa}{nnna}{pulli}' test (not '{ca}')) or
'{vs_aa}{lla}{pulli}' or
'{vs_aa}{ra}{pulli}' or
'{vs_ee}{nnna}{pulli}' or
'{vs_ee}{nnna}{pulli}' or
'{vs_aa}' or
'{vs_aa}{ma}{pulli}' or
'{vs_e}{ma}{pulli}' or
'{vs_ee}{ma}{pulli}' or
'{vs_ee}{ma}{pulli}' or
'{vs_oo}{ma}{pulli}' or
'{ka}{vs_u}{ma}{pulli}' or
'{ta}{vs_u}{ma}{pulli}' or
Expand All @@ -411,7 +410,7 @@ define remove_tense_suffix as (
'{nnna}{vs_e}{nnna}{pulli}' or
'{nnna}{vs_i}{ra}{pulli}' or
'{vs_ii}{ra}{pulli}' or
'{vs_ii}{ya}{ra}{pulli}'
'{vs_ii}{ya}{ra}{pulli}'
] <- '{pulli}'
(set found_a_match)
)
Expand All @@ -426,7 +425,7 @@ define remove_tense_suffix as (
'{ka}{vs_i}{nnna}{pulli}{rra}'
'{ka}{vs_i}{nnna}{pulli}{rra}{pulli}'
'{ka}{vs_i}{rra}'
'{ka}{vs_i}{rra}{pulli}'
'{ka}{vs_i}{rra}{pulli}'
)] delete
(set found_a_match)
)
Expand Down