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gitea/vendor/github.com/blevesearch/bleve/search/query/query_string.y

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%{
package query
import (
"fmt"
"strconv"
"strings"
"time"
)
func logDebugGrammar(format string, v ...interface{}) {
if debugParser {
logger.Printf(format, v...)
}
}
%}
%union {
s string
n int
f float64
q Query
pf *float64}
%token tSTRING tPHRASE tPLUS tMINUS tCOLON tBOOST tNUMBER tSTRING tGREATER tLESS
tEQUAL tTILDE
%type <s> tSTRING
%type <s> tPHRASE
%type <s> tNUMBER
%type <s> posOrNegNumber
%type <s> tTILDE
%type <s> tBOOST
%type <q> searchBase
%type <pf> searchSuffix
%type <n> searchPrefix
%%
input:
searchParts {
logDebugGrammar("INPUT")
};
searchParts:
searchPart searchParts {
logDebugGrammar("SEARCH PARTS")
}
|
searchPart {
logDebugGrammar("SEARCH PART")
};
searchPart:
searchPrefix searchBase searchSuffix {
query := $2
if $3 != nil {
if query, ok := query.(BoostableQuery); ok {
query.SetBoost(*$3)
}
}
switch($1) {
case queryShould:
yylex.(*lexerWrapper).query.AddShould(query)
case queryMust:
yylex.(*lexerWrapper).query.AddMust(query)
case queryMustNot:
yylex.(*lexerWrapper).query.AddMustNot(query)
}
};
searchPrefix:
/* empty */ {
$$ = queryShould
}
|
tPLUS {
logDebugGrammar("PLUS")
$$ = queryMust
}
|
tMINUS {
logDebugGrammar("MINUS")
$$ = queryMustNot
};
searchBase:
tSTRING {
str := $1
logDebugGrammar("STRING - %s", str)
var q FieldableQuery
if strings.HasPrefix(str, "/") && strings.HasSuffix(str, "/") {
q = NewRegexpQuery(str[1:len(str)-1])
} else if strings.ContainsAny(str, "*?"){
q = NewWildcardQuery(str)
} else {
q = NewMatchQuery(str)
}
$$ = q
}
|
tSTRING tTILDE {
str := $1
fuzziness, err := strconv.ParseFloat($2, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("invalid fuzziness value: %v", err))
}
logDebugGrammar("FUZZY STRING - %s %f", str, fuzziness)
q := NewMatchQuery(str)
q.SetFuzziness(int(fuzziness))
$$ = q
}
|
tSTRING tCOLON tSTRING tTILDE {
field := $1
str := $3
fuzziness, err := strconv.ParseFloat($4, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("invalid fuzziness value: %v", err))
}
logDebugGrammar("FIELD - %s FUZZY STRING - %s %f", field, str, fuzziness)
q := NewMatchQuery(str)
q.SetFuzziness(int(fuzziness))
q.SetField(field)
$$ = q
}
|
tNUMBER {
str := $1
logDebugGrammar("STRING - %s", str)
q1 := NewMatchQuery(str)
val, err := strconv.ParseFloat($1, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("error parsing number: %v", err))
}
inclusive := true
q2 := NewNumericRangeInclusiveQuery(&val, &val, &inclusive, &inclusive)
q := NewDisjunctionQuery([]Query{q1,q2})
q.queryStringMode = true
$$ = q
}
|
tPHRASE {
phrase := $1
logDebugGrammar("PHRASE - %s", phrase)
q := NewMatchPhraseQuery(phrase)
$$ = q
}
|
tSTRING tCOLON tSTRING {
field := $1
str := $3
logDebugGrammar("FIELD - %s STRING - %s", field, str)
var q FieldableQuery
if strings.HasPrefix(str, "/") && strings.HasSuffix(str, "/") {
q = NewRegexpQuery(str[1:len(str)-1])
} else if strings.ContainsAny(str, "*?"){
q = NewWildcardQuery(str)
} else {
q = NewMatchQuery(str)
}
q.SetField(field)
$$ = q
}
|
tSTRING tCOLON posOrNegNumber {
field := $1
str := $3
logDebugGrammar("FIELD - %s STRING - %s", field, str)
q1 := NewMatchQuery(str)
q1.SetField(field)
val, err := strconv.ParseFloat($3, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("error parsing number: %v", err))
}
inclusive := true
q2 := NewNumericRangeInclusiveQuery(&val, &val, &inclusive, &inclusive)
q2.SetField(field)
q := NewDisjunctionQuery([]Query{q1,q2})
q.queryStringMode = true
$$ = q
}
|
tSTRING tCOLON tPHRASE {
field := $1
phrase := $3
logDebugGrammar("FIELD - %s PHRASE - %s", field, phrase)
q := NewMatchPhraseQuery(phrase)
q.SetField(field)
$$ = q
}
|
tSTRING tCOLON tGREATER posOrNegNumber {
field := $1
min, err := strconv.ParseFloat($4, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("error parsing number: %v", err))
}
minInclusive := false
logDebugGrammar("FIELD - GREATER THAN %f", min)
q := NewNumericRangeInclusiveQuery(&min, nil, &minInclusive, nil)
q.SetField(field)
$$ = q
}
|
tSTRING tCOLON tGREATER tEQUAL posOrNegNumber {
field := $1
min, err := strconv.ParseFloat($5, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("error parsing number: %v", err))
}
minInclusive := true
logDebugGrammar("FIELD - GREATER THAN OR EQUAL %f", min)
q := NewNumericRangeInclusiveQuery(&min, nil, &minInclusive, nil)
q.SetField(field)
$$ = q
}
|
tSTRING tCOLON tLESS posOrNegNumber {
field := $1
max, err := strconv.ParseFloat($4, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("error parsing number: %v", err))
}
maxInclusive := false
logDebugGrammar("FIELD - LESS THAN %f", max)
q := NewNumericRangeInclusiveQuery(nil, &max, nil, &maxInclusive)
q.SetField(field)
$$ = q
}
|
tSTRING tCOLON tLESS tEQUAL posOrNegNumber {
field := $1
max, err := strconv.ParseFloat($5, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("error parsing number: %v", err))
}
maxInclusive := true
logDebugGrammar("FIELD - LESS THAN OR EQUAL %f", max)
q := NewNumericRangeInclusiveQuery(nil, &max, nil, &maxInclusive)
q.SetField(field)
$$ = q
}
|
tSTRING tCOLON tGREATER tPHRASE {
field := $1
minInclusive := false
phrase := $4
logDebugGrammar("FIELD - GREATER THAN DATE %s", phrase)
minTime, err := queryTimeFromString(phrase)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("invalid time: %v", err))
}
q := NewDateRangeInclusiveQuery(minTime, time.Time{}, &minInclusive, nil)
q.SetField(field)
$$ = q
}
|
tSTRING tCOLON tGREATER tEQUAL tPHRASE {
field := $1
minInclusive := true
phrase := $5
logDebugGrammar("FIELD - GREATER THAN OR EQUAL DATE %s", phrase)
minTime, err := queryTimeFromString(phrase)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("invalid time: %v", err))
}
q := NewDateRangeInclusiveQuery(minTime, time.Time{}, &minInclusive, nil)
q.SetField(field)
$$ = q
}
|
tSTRING tCOLON tLESS tPHRASE {
field := $1
maxInclusive := false
phrase := $4
logDebugGrammar("FIELD - LESS THAN DATE %s", phrase)
maxTime, err := queryTimeFromString(phrase)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("invalid time: %v", err))
}
q := NewDateRangeInclusiveQuery(time.Time{}, maxTime, nil, &maxInclusive)
q.SetField(field)
$$ = q
}
|
tSTRING tCOLON tLESS tEQUAL tPHRASE {
field := $1
maxInclusive := true
phrase := $5
logDebugGrammar("FIELD - LESS THAN OR EQUAL DATE %s", phrase)
maxTime, err := queryTimeFromString(phrase)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("invalid time: %v", err))
}
q := NewDateRangeInclusiveQuery(time.Time{}, maxTime, nil, &maxInclusive)
q.SetField(field)
$$ = q
};
searchSuffix:
/* empty */ {
$$ = nil
}
|
tBOOST {
$$ = nil
boost, err := strconv.ParseFloat($1, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("invalid boost value: %v", err))
} else {
$$ = &boost
}
logDebugGrammar("BOOST %f", boost)
};
posOrNegNumber:
tNUMBER {
$$ = $1
}
|
tMINUS tNUMBER {
$$ = "-" + $2
};