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comparison software/mpdl-services/mpiwg-mpdl-lt/src/de/mpg/mpiwg/berlin/mpdl/lt/text/norm/lang/MpdlNormalizerLexEN.lex @ 19:4a3641ae14d2

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Erstellung
author Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
date Wed, 09 Nov 2011 15:32:05 +0100
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children e845310098ba
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18:dc5e9fcb3fdc 19:4a3641ae14d2
1 /*
2 * Normalization rules for English text
3 * [this is a JFlex specification]
4 *
5 * Wolfgang Schmidle
6 * version 2011-07-12
7 *
8 */
9
10 package de.mpg.mpiwg.berlin.mpdl.lt.analyzer.lang;
11
12 %%
13
14 %public
15 %class MpdlNormalizerLexEN
16 %type java.lang.String
17 %unicode
18
19 // 1.5 English: en
20
21 %states DISP, DICT, SEARCH
22
23 %{
24 private String original = "";
25 private String normalized = "";
26 private int problem = 0;
27
28 private void add (String norm) {
29 original += yytext();
30 normalized += norm;
31 }
32
33 private static final String LB = "[\u002d\u00ad] ";
34 %}
35
36 hyphen = [-\u{00ad}] // hyphen and soft hyphen
37 LB = {hyphen} \u0020
38 // lb = ({hyphen} \u0020)?
39
40 END = \n
41
42 %%
43
44 <DISP, DICT, SEARCH> {
45
46 ſ { add("s"); }
47
48 }
49
50
51 // default
52
53 @ { problem = 1; add(yytext()); }
54 {LB} { add(yytext()); }
55 . { add(yytext()); }
56
57
58 <DISP> {
59
60 {END} {
61 switch (problem) {
62 case 1: return original;
63 default: return normalized;
64 }
65 }
66 }
67
68 <DICT> {
69
70 {END} {
71 switch (problem) {
72 case 1: return "";
73 default: return normalized.replaceAll(LB, "");
74 }
75 }
76 }
77
78 <SEARCH> {
79
80 {END} {
81 switch (problem) {
82 case 1: return original;
83 default: return normalized.replaceAll(LB, "").toLowerCase();
84 }
85 }
86 }
87
88
89 /*
90
91 Annahmen:
92 - die Routine wird wortweise aufgerufen, mit einem \n am Ende des Strings
93 - Zeilenumbrüche innerhalb des Wortes sind als hyphen/soft hyphen plus space markiert
94
95 TO DO:
96
97 EN: vollständig?
98
99 */