Ryan19929 commented on code in PR #50141:
URL: https://github.com/apache/doris/pull/50141#discussion_r2063641659
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be/src/olap/rowset/segment_v2/inverted_index/analyzer/ik/core/CharacterUtil.cpp:
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@@ -20,77 +20,50 @@
namespace doris::segment_v2 {
int32_t CharacterUtil::identifyCharType(int32_t rune) {
- // Numbers
- if (rune >= 0x30 && rune <= 0x39) {
+ if (rune >= '0' && rune <= '9') {
return CHAR_ARABIC;
}
-
- // English
- if ((rune >= 0x61 && rune <= 0x7a) || (rune >= 0x41 && rune <= 0x5a)) {
+ if ((rune >= 'a' && rune <= 'z') || (rune >= 'A' && rune <= 'Z')) {
return CHAR_ENGLISH;
}
- // CJK Unified Chinese Characters
- if ((rune >= 0x4E00 && rune <= 0x9FFF) || (rune >= 0x3400 && rune <=
0x4DBF) ||
- (rune >= 0x20000 && rune <= 0x2A6DF) || (rune >= 0x2A700 && rune <=
0x2B73F) ||
- (rune >= 0x2B740 && rune <= 0x2B81F) || (rune >= 0x2B820 && rune <=
0x2CEAF) ||
- (rune >= 0x2CEB0 && rune <= 0x2EBEF) || (rune >= 0x30000 && rune <=
0x3134F)) {
+ UBlockCode block = ublock_getCode(rune);
+
+ if (block == UBLOCK_CJK_UNIFIED_IDEOGRAPHS || block ==
UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS ||
Review Comment:
Previously, C++ matched Java's behavior by outputting extended characters
(e.g., "𠮷", CHAR_SURROGATE Type) as standalone tokens without dictionary
matching. After modification, C++ now correctly matches these characters to
dictionaries (e.g., "𠮷" is recognized), but this introduces segmentation
differences from Java (e.g., [𠮷B] vs. [𠮷][B]). It's OK?
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