From b18703690547333d559f09f63f40ada4fed6f4d4 Mon Sep 17 00:00:00 2001 From: Jon Bratseth Date: Fri, 2 Jun 2023 08:50:08 +0200 Subject: Don't remove indexable symbols when stemming --- .../src/main/java/com/yahoo/language/simple/SimpleTokenizer.java | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'linguistics/src/main/java/com/yahoo/language/simple/SimpleTokenizer.java') diff --git a/linguistics/src/main/java/com/yahoo/language/simple/SimpleTokenizer.java b/linguistics/src/main/java/com/yahoo/language/simple/SimpleTokenizer.java index 2728249333e..d86ca30a632 100644 --- a/linguistics/src/main/java/com/yahoo/language/simple/SimpleTokenizer.java +++ b/linguistics/src/main/java/com/yahoo/language/simple/SimpleTokenizer.java @@ -67,7 +67,7 @@ public class SimpleTokenizer implements Tokenizer { for (int prev = 0, next = Character.charCount(nextCode); next <= input.length(); ) { nextCode = next < input.length() ? input.codePointAt(next) : SPACE_CODE; TokenType nextType = SimpleTokenType.valueOf(nextCode); - if (!prevType.isIndexable() || !nextType.isIndexable()) { + if (isAtTokenBoundary(prevType, nextType)) { String original = input.substring(prev, next); tokens.add(new SimpleToken(original).setOffset(prev) .setType(tokenType) @@ -84,6 +84,12 @@ public class SimpleTokenizer implements Tokenizer { return tokens; } + private boolean isAtTokenBoundary(TokenType prevType, TokenType nextType) { + // Always index each symbol as a token + if (prevType == TokenType.INDEXABLE_SYMBOL || nextType == TokenType.INDEXABLE_SYMBOL) return true; + return !prevType.isIndexable() || !nextType.isIndexable(); + } + private TokenType determineType(TokenType tokenType, TokenType characterType) { if (characterType == TokenType.ALPHABETIC) return TokenType.ALPHABETIC; return tokenType; -- cgit v1.2.3