Lucene中Query語法樹的整理
阿新 • • 發佈：2019-01-29
_NUM_CHAR::=["0"-"9"] //數字_ESCAPED_CHAR::="//" [ "//", "+", "-", "!", "(", ")", ":", "^", "[", "]", "/"", "{", "}", "~", "*", "?" ] > //特殊字元，_TERM_START_CHAR ::=( ~[ "", "/t", "/n", "/r", "+", "-", "!", "(", ")", ":", "^","[", "]", "/"", "{", "}", "~", "*", "?" ] //TERM的起始字元，除了列出的其它字元都可以_TERM_CHAR::=( <_TERM_START_CHAR
AND::=("AND"|"&&")
OR::=("OR"|"||")
NOT::=("NOT"|"!")
PLUS::="+"
MINUS::="-"
LPAREN::="("
RPAREN::=")"
COLON::=":"
STAR::="*"
CARAT::="^"//後接Boost，原文<CARAT: "^" > : Boost，後面Boost說明什麼沒明白
FUZZY_SLOP::="~" ( (<_NUM_CHAR>)+ ( "." (<_NUM_CHAR>)+ )? )?//字元~開始，而後是數字.Lucene支援模糊查詢，例如"roam~"或"roam~0.8"，The value is between 0 and 1，演算法為the Levenshtein Distance, or Edit Distance algorithm
NUMBER::=(<_NUM_CHAR>)+ ( "." (<_NUM_CHAR>)+ )?//後接DEFAULT， 整數或小數<RangeIn> TOKEN:
RANGEIN_TO::="TO"
RANGEIN_END::="]"//後接DEFAULT, RangIn的結束 RANGEIN_QUOTED::="/"" (~["/""] |"///"")+ "/""//同上述QUOTED，表示用"包起來的字串, RANGEIN_GOOP::= (~[ "", "]" ])+//1個或多個不是空格和]的符號,這樣就能提取出[]中的內容<RangeEx> TOKEN :
RANGEEX_TO::="TO">
RANGEEX_END::="}"//後接DEFAULT, RangeEx的結束 RANGEEX_QUOTED::="/"" (~["/""] |"///"")+ "/""//同上述QUOTED，表示用"包起來的字串, RANGEEX_GOOP::=(~[ "", "}" ])+//1個或多個不是空格和]的符號,這樣就能提取出[]中的內容<DEFAULT, RangeIn, RangeEx> SKIP : {
<<_WHITESPACE>>
} //所有空格和回車被忽略
AND::=("AND"|"&&")
OR::=("OR"|"||")
NOT::=("NOT"|"!")
PLUS::="+"
MINUS::="-"
LPAREN::="("
RPAREN::=")"
COLON::=":"
STAR::="*"
CARAT::="^"//後接Boost，原文<CARAT: "^" > : Boost，後面Boost說明什麼沒明白
FUZZY_SLOP::="~" ( (<_NUM_CHAR>)+ ( "." (<_NUM_CHAR>)+ )? )?//字元~開始，而後是數字.Lucene支援模糊查詢，例如"roam~"或"roam~0.8"，The value is between 0 and 1，演算法為the Levenshtein Distance, or Edit Distance algorithm
NUMBER::=(<_NUM_CHAR>)+ ( "." (<_NUM_CHAR>)+ )?//後接DEFAULT， 整數或小數<RangeIn> TOKEN:
RANGEIN_TO::="TO"
RANGEIN_END::="]"//後接DEFAULT, RangIn的結束 RANGEIN_QUOTED::="/"" (~["/""] |"///"")+ "/""//同上述QUOTED，表示用"包起來的字串, RANGEIN_GOOP::= (~[ "", "]" ])+//1個或多個不是空格和]的符號,這樣就能提取出[]中的內容<RangeEx> TOKEN :
RANGEEX_TO::="TO">
RANGEEX_END::="}"//後接DEFAULT, RangeEx的結束 RANGEEX_QUOTED::="/"" (~["/""] |"///"")+ "/""//同上述QUOTED，表示用"包起來的字串, RANGEEX_GOOP::=(~[ "", "}" ])+//1個或多個不是空格和]的符號,這樣就能提取出[]中的內容<DEFAULT, RangeIn, RangeEx> SKIP : {
<<_WHITESPACE>>
} //所有空格和回車被忽略