Aspekte der morphologischen Analyse des Deutschen - Universität ...

Anhang C: Programmcode
Anhang C: Programmcode
Anhang C enthält die Programmtexte der Analyseautomaten und der morphologischen
Grammatik. In C.1 ist der Segmentierer dokumentiert, in C.2 der unifikationsbasierte Chart-
Parser.
C.3 gibt die CUF-Implementierung der morphologischen Grammatik wieder.
C.1 Der Segmentierer
/*********************************************************************************************************************************
File: segment.pl
Language: Sicstus Prolog 3.5
Author: Thomas Hanneforth, University of Potsdam, Germany
Date: Feb. 98
Desc.: implements the segmenting automation
*********************************************************************************************************************************/
:- ensure_loaded([library(lists)]).
:- [utils].
:- [automat]. % Alphabet and start state of the segmentizer
/*********************************************************************************************************************************
parse_word(Word:,Structures:)
Top level predicate of the word parser; calls predicates init_chart/0, shift/1 in
wordchart.pl
Use word_segmentation/2 if you are only interested in the known
segments of Word
*********************************************************************************************************************************/
parse_word(Word,Structures) :-
init_chart,
% convert Word into a list of atoms, e.g. 'Hi' becomes ['H',i]
atom_to_atomlist(Word,Symbollist),
startstate(StartState),
% shift the found segments into the chart
insert_segments_into_chart(Symbollist,StartState,1,Word),
% check whether it's necessary to insert "unknown"-segments
% after the last lexical segment
complete_chart(Word),
startcat(Startcat),
length(Symbollist,Wordlength),
% find all edges spanning the whole word
generate_structures(Startcat,Wordlength,Structures).
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