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author | Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> |
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date | Tue, 27 Nov 2012 12:35:19 +0100 |
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/* * Normalization rules for Greek text * [this is a JFlex specification] * * Wolfgang Schmidle * version 2011-08-03 * */ package de.mpg.mpiwg.berlin.mpdl.lt.text.norm.lang; %% %public %class MpdlNormalizerLexEL %type java.lang.String %unicode // Greek: el, grc %states DISP, DICT, SEARCH %state SIGMA %{ private String original = ""; private String normalized = ""; private int problem = 0; private void add (String norm) { original += yytext(); normalized += norm; } private static final String LB = "[\u002d\u00ad] "; %} hyphen = [-\u{00ad}] // hyphen and soft hyphen LB = {hyphen} \u0020 // lb = ({hyphen} \u0020)? END = \n wordend = [νρς]? {END} Latin = [abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ] %% // jump over empty xml elements "<"[^><]+"/>" { add(yytext()); } "-<"[^><]+"/>" { add(yytext()); } "<"[^><]+"></"[^><]+">" { add(yytext()); } "-<"[^><]+"></"[^><]+">" { add(yytext()); } // always replace tonos by oxia // (although this should really be corrected in the text rather than normalized) ά { add("ά"); } έ { add("έ"); } ή { add("ή"); } ί { add("ί"); } ό { add("ό"); } ύ { add("ύ"); } ώ { add("ώ"); } <DICT, SEARCH, SIGMA> { ὰ / {wordend} { add("ά"); } ᾲ / {wordend} { add("ᾴ"); } ὲ / {wordend} { add("έ"); } ὴ / {wordend} { add("ή"); } ῂ / {wordend} { add("ῄ"); } ὶ / {wordend} { add("ί"); } ὸ / {wordend} { add("ό"); } ὺ / {wordend} { add("ύ"); } ὼ / {wordend} { add("ώ"); } ῲ / {wordend} { add("ῴ"); } // other candidates: Ὰ Ὲ Ὴ Ὶ Ὺ Ὸ Ὼ } <SIGMA> { ς { add("σ"); } } // default @ { problem = 1; add(yytext()); } {Latin} { problem = 1; add(yytext()); } {LB} { add(yytext()); } . { add(yytext()); } <DISP> { {END} { switch (problem) { case 1: return original; default: return normalized; } } } <DICT, SIGMA> { {END} { switch (problem) { case 1: return ""; default: return normalized.replaceAll(LB, ""); } } } <SEARCH> { {END} { switch (problem) { case 1: return original; default: return normalized.replaceAll(LB, "").toLowerCase(); } } } /* Annahmen: - die Routine wird wortweise aufgerufen, mit einem \n am Ende des Strings - Zeilenumbrüche innerhalb des Wortes sind als hyphen/soft hyphen plus space markiert TO DO: EL: tonos --> oxia wieder rausnehmen, weil es im Text geändert werden muss? EL: gibt es noch weitere Fälle, wo legitimerweise ein Gravis vorkommen kann? EL: kommen Großbuchstaben mit Gravis bei uns jemals vor, und sollen sie normalisiert werden? EL: neuer State BETACODE ? EL: nicht falsche Zeichen definieren, sondern erlaubte Zeichen */