githaven/vendor/github.com/blevesearch/bleve/search/query/query_string.y.go
2017-01-25 10:43:02 +08:00

774 lines
16 KiB
Go

package query
import __yyfmt__ "fmt"
//line query_string.y:2
import (
"fmt"
"strconv"
"strings"
"time"
)
func logDebugGrammar(format string, v ...interface{}) {
if debugParser {
logger.Printf(format, v...)
}
}
//line query_string.y:17
type yySymType struct {
yys int
s string
n int
f float64
q Query
pf *float64
}
const tSTRING = 57346
const tPHRASE = 57347
const tPLUS = 57348
const tMINUS = 57349
const tCOLON = 57350
const tBOOST = 57351
const tNUMBER = 57352
const tGREATER = 57353
const tLESS = 57354
const tEQUAL = 57355
const tTILDE = 57356
var yyToknames = [...]string{
"$end",
"error",
"$unk",
"tSTRING",
"tPHRASE",
"tPLUS",
"tMINUS",
"tCOLON",
"tBOOST",
"tNUMBER",
"tGREATER",
"tLESS",
"tEQUAL",
"tTILDE",
}
var yyStatenames = [...]string{}
const yyEofCode = 1
const yyErrCode = 2
const yyInitialStackSize = 16
//line yacctab:1
var yyExca = [...]int{
-1, 1,
1, -1,
-2, 0,
-1, 3,
1, 3,
-2, 5,
}
const yyNprod = 26
const yyPrivate = 57344
var yyTokenNames []string
var yyStates []string
const yyLast = 31
var yyAct = [...]int{
16, 18, 21, 13, 27, 24, 17, 19, 20, 25,
22, 15, 26, 23, 9, 11, 31, 14, 29, 3,
10, 30, 2, 28, 5, 6, 7, 1, 4, 12,
8,
}
var yyPact = [...]int{
18, -1000, -1000, 18, 10, -1000, -1000, -1000, -6, 3,
-1000, -1000, -1000, -1000, -1000, -4, -12, -1000, -1000, 0,
-1, -1000, -1000, 13, -1000, -1000, 11, -1000, -1000, -1000,
-1000, -1000,
}
var yyPgo = [...]int{
0, 30, 29, 28, 27, 22, 19,
}
var yyR1 = [...]int{
0, 4, 5, 5, 6, 3, 3, 3, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 2, 2,
}
var yyR2 = [...]int{
0, 1, 2, 1, 3, 0, 1, 1, 1, 2,
4, 1, 1, 3, 3, 3, 4, 5, 4, 5,
4, 5, 4, 5, 0, 1,
}
var yyChk = [...]int{
-1000, -4, -5, -6, -3, 6, 7, -5, -1, 4,
10, 5, -2, 9, 14, 8, 4, 10, 5, 11,
12, 14, 10, 13, 5, 10, 13, 5, 10, 5,
10, 5,
}
var yyDef = [...]int{
5, -2, 1, -2, 0, 6, 7, 2, 24, 8,
11, 12, 4, 25, 9, 0, 13, 14, 15, 0,
0, 10, 16, 0, 20, 18, 0, 22, 17, 21,
19, 23,
}
var yyTok1 = [...]int{
1,
}
var yyTok2 = [...]int{
2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14,
}
var yyTok3 = [...]int{
0,
}
var yyErrorMessages = [...]struct {
state int
token int
msg string
}{}
//line yaccpar:1
/* parser for yacc output */
var (
yyDebug = 0
yyErrorVerbose = false
)
type yyLexer interface {
Lex(lval *yySymType) int
Error(s string)
}
type yyParser interface {
Parse(yyLexer) int
Lookahead() int
}
type yyParserImpl struct {
lval yySymType
stack [yyInitialStackSize]yySymType
char int
}
func (p *yyParserImpl) Lookahead() int {
return p.char
}
func yyNewParser() yyParser {
return &yyParserImpl{}
}
const yyFlag = -1000
func yyTokname(c int) string {
if c >= 1 && c-1 < len(yyToknames) {
if yyToknames[c-1] != "" {
return yyToknames[c-1]
}
}
return __yyfmt__.Sprintf("tok-%v", c)
}
func yyStatname(s int) string {
if s >= 0 && s < len(yyStatenames) {
if yyStatenames[s] != "" {
return yyStatenames[s]
}
}
return __yyfmt__.Sprintf("state-%v", s)
}
func yyErrorMessage(state, lookAhead int) string {
const TOKSTART = 4
if !yyErrorVerbose {
return "syntax error"
}
for _, e := range yyErrorMessages {
if e.state == state && e.token == lookAhead {
return "syntax error: " + e.msg
}
}
res := "syntax error: unexpected " + yyTokname(lookAhead)
// To match Bison, suggest at most four expected tokens.
expected := make([]int, 0, 4)
// Look for shiftable tokens.
base := yyPact[state]
for tok := TOKSTART; tok-1 < len(yyToknames); tok++ {
if n := base + tok; n >= 0 && n < yyLast && yyChk[yyAct[n]] == tok {
if len(expected) == cap(expected) {
return res
}
expected = append(expected, tok)
}
}
if yyDef[state] == -2 {
i := 0
for yyExca[i] != -1 || yyExca[i+1] != state {
i += 2
}
// Look for tokens that we accept or reduce.
for i += 2; yyExca[i] >= 0; i += 2 {
tok := yyExca[i]
if tok < TOKSTART || yyExca[i+1] == 0 {
continue
}
if len(expected) == cap(expected) {
return res
}
expected = append(expected, tok)
}
// If the default action is to accept or reduce, give up.
if yyExca[i+1] != 0 {
return res
}
}
for i, tok := range expected {
if i == 0 {
res += ", expecting "
} else {
res += " or "
}
res += yyTokname(tok)
}
return res
}
func yylex1(lex yyLexer, lval *yySymType) (char, token int) {
token = 0
char = lex.Lex(lval)
if char <= 0 {
token = yyTok1[0]
goto out
}
if char < len(yyTok1) {
token = yyTok1[char]
goto out
}
if char >= yyPrivate {
if char < yyPrivate+len(yyTok2) {
token = yyTok2[char-yyPrivate]
goto out
}
}
for i := 0; i < len(yyTok3); i += 2 {
token = yyTok3[i+0]
if token == char {
token = yyTok3[i+1]
goto out
}
}
out:
if token == 0 {
token = yyTok2[1] /* unknown char */
}
if yyDebug >= 3 {
__yyfmt__.Printf("lex %s(%d)\n", yyTokname(token), uint(char))
}
return char, token
}
func yyParse(yylex yyLexer) int {
return yyNewParser().Parse(yylex)
}
func (yyrcvr *yyParserImpl) Parse(yylex yyLexer) int {
var yyn int
var yyVAL yySymType
var yyDollar []yySymType
_ = yyDollar // silence set and not used
yyS := yyrcvr.stack[:]
Nerrs := 0 /* number of errors */
Errflag := 0 /* error recovery flag */
yystate := 0
yyrcvr.char = -1
yytoken := -1 // yyrcvr.char translated into internal numbering
defer func() {
// Make sure we report no lookahead when not parsing.
yystate = -1
yyrcvr.char = -1
yytoken = -1
}()
yyp := -1
goto yystack
ret0:
return 0
ret1:
return 1
yystack:
/* put a state and value onto the stack */
if yyDebug >= 4 {
__yyfmt__.Printf("char %v in %v\n", yyTokname(yytoken), yyStatname(yystate))
}
yyp++
if yyp >= len(yyS) {
nyys := make([]yySymType, len(yyS)*2)
copy(nyys, yyS)
yyS = nyys
}
yyS[yyp] = yyVAL
yyS[yyp].yys = yystate
yynewstate:
yyn = yyPact[yystate]
if yyn <= yyFlag {
goto yydefault /* simple state */
}
if yyrcvr.char < 0 {
yyrcvr.char, yytoken = yylex1(yylex, &yyrcvr.lval)
}
yyn += yytoken
if yyn < 0 || yyn >= yyLast {
goto yydefault
}
yyn = yyAct[yyn]
if yyChk[yyn] == yytoken { /* valid shift */
yyrcvr.char = -1
yytoken = -1
yyVAL = yyrcvr.lval
yystate = yyn
if Errflag > 0 {
Errflag--
}
goto yystack
}
yydefault:
/* default state action */
yyn = yyDef[yystate]
if yyn == -2 {
if yyrcvr.char < 0 {
yyrcvr.char, yytoken = yylex1(yylex, &yyrcvr.lval)
}
/* look through exception table */
xi := 0
for {
if yyExca[xi+0] == -1 && yyExca[xi+1] == yystate {
break
}
xi += 2
}
for xi += 2; ; xi += 2 {
yyn = yyExca[xi+0]
if yyn < 0 || yyn == yytoken {
break
}
}
yyn = yyExca[xi+1]
if yyn < 0 {
goto ret0
}
}
if yyn == 0 {
/* error ... attempt to resume parsing */
switch Errflag {
case 0: /* brand new error */
yylex.Error(yyErrorMessage(yystate, yytoken))
Nerrs++
if yyDebug >= 1 {
__yyfmt__.Printf("%s", yyStatname(yystate))
__yyfmt__.Printf(" saw %s\n", yyTokname(yytoken))
}
fallthrough
case 1, 2: /* incompletely recovered error ... try again */
Errflag = 3
/* find a state where "error" is a legal shift action */
for yyp >= 0 {
yyn = yyPact[yyS[yyp].yys] + yyErrCode
if yyn >= 0 && yyn < yyLast {
yystate = yyAct[yyn] /* simulate a shift of "error" */
if yyChk[yystate] == yyErrCode {
goto yystack
}
}
/* the current p has no shift on "error", pop stack */
if yyDebug >= 2 {
__yyfmt__.Printf("error recovery pops state %d\n", yyS[yyp].yys)
}
yyp--
}
/* there is no state on the stack with an error shift ... abort */
goto ret1
case 3: /* no shift yet; clobber input char */
if yyDebug >= 2 {
__yyfmt__.Printf("error recovery discards %s\n", yyTokname(yytoken))
}
if yytoken == yyEofCode {
goto ret1
}
yyrcvr.char = -1
yytoken = -1
goto yynewstate /* try again in the same state */
}
}
/* reduction by production yyn */
if yyDebug >= 2 {
__yyfmt__.Printf("reduce %v in:\n\t%v\n", yyn, yyStatname(yystate))
}
yynt := yyn
yypt := yyp
_ = yypt // guard against "declared and not used"
yyp -= yyR2[yyn]
// yyp is now the index of $0. Perform the default action. Iff the
// reduced production is ε, $1 is possibly out of range.
if yyp+1 >= len(yyS) {
nyys := make([]yySymType, len(yyS)*2)
copy(nyys, yyS)
yyS = nyys
}
yyVAL = yyS[yyp+1]
/* consult goto table to find next state */
yyn = yyR1[yyn]
yyg := yyPgo[yyn]
yyj := yyg + yyS[yyp].yys + 1
if yyj >= yyLast {
yystate = yyAct[yyg]
} else {
yystate = yyAct[yyj]
if yyChk[yystate] != -yyn {
yystate = yyAct[yyg]
}
}
// dummy call; replaced with literal code
switch yynt {
case 1:
yyDollar = yyS[yypt-1 : yypt+1]
//line query_string.y:39
{
logDebugGrammar("INPUT")
}
case 2:
yyDollar = yyS[yypt-2 : yypt+1]
//line query_string.y:44
{
logDebugGrammar("SEARCH PARTS")
}
case 3:
yyDollar = yyS[yypt-1 : yypt+1]
//line query_string.y:48
{
logDebugGrammar("SEARCH PART")
}
case 4:
yyDollar = yyS[yypt-3 : yypt+1]
//line query_string.y:53
{
query := yyDollar[2].q
if yyDollar[3].pf != nil {
if query, ok := query.(BoostableQuery); ok {
query.SetBoost(*yyDollar[3].pf)
}
}
switch yyDollar[1].n {
case queryShould:
yylex.(*lexerWrapper).query.AddShould(query)
case queryMust:
yylex.(*lexerWrapper).query.AddMust(query)
case queryMustNot:
yylex.(*lexerWrapper).query.AddMustNot(query)
}
}
case 5:
yyDollar = yyS[yypt-0 : yypt+1]
//line query_string.y:72
{
yyVAL.n = queryShould
}
case 6:
yyDollar = yyS[yypt-1 : yypt+1]
//line query_string.y:76
{
logDebugGrammar("PLUS")
yyVAL.n = queryMust
}
case 7:
yyDollar = yyS[yypt-1 : yypt+1]
//line query_string.y:81
{
logDebugGrammar("MINUS")
yyVAL.n = queryMustNot
}
case 8:
yyDollar = yyS[yypt-1 : yypt+1]
//line query_string.y:87
{
str := yyDollar[1].s
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)
}
yyVAL.q = q
}
case 9:
yyDollar = yyS[yypt-2 : yypt+1]
//line query_string.y:101
{
str := yyDollar[1].s
fuzziness, err := strconv.ParseFloat(yyDollar[2].s, 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))
yyVAL.q = q
}
case 10:
yyDollar = yyS[yypt-4 : yypt+1]
//line query_string.y:113
{
field := yyDollar[1].s
str := yyDollar[3].s
fuzziness, err := strconv.ParseFloat(yyDollar[4].s, 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)
yyVAL.q = q
}
case 11:
yyDollar = yyS[yypt-1 : yypt+1]
//line query_string.y:127
{
str := yyDollar[1].s
logDebugGrammar("STRING - %s", str)
q := NewMatchQuery(str)
yyVAL.q = q
}
case 12:
yyDollar = yyS[yypt-1 : yypt+1]
//line query_string.y:134
{
phrase := yyDollar[1].s
logDebugGrammar("PHRASE - %s", phrase)
q := NewMatchPhraseQuery(phrase)
yyVAL.q = q
}
case 13:
yyDollar = yyS[yypt-3 : yypt+1]
//line query_string.y:141
{
field := yyDollar[1].s
str := yyDollar[3].s
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)
yyVAL.q = q
}
case 14:
yyDollar = yyS[yypt-3 : yypt+1]
//line query_string.y:157
{
field := yyDollar[1].s
str := yyDollar[3].s
logDebugGrammar("FIELD - %s STRING - %s", field, str)
q := NewMatchQuery(str)
q.SetField(field)
yyVAL.q = q
}
case 15:
yyDollar = yyS[yypt-3 : yypt+1]
//line query_string.y:166
{
field := yyDollar[1].s
phrase := yyDollar[3].s
logDebugGrammar("FIELD - %s PHRASE - %s", field, phrase)
q := NewMatchPhraseQuery(phrase)
q.SetField(field)
yyVAL.q = q
}
case 16:
yyDollar = yyS[yypt-4 : yypt+1]
//line query_string.y:175
{
field := yyDollar[1].s
min, _ := strconv.ParseFloat(yyDollar[4].s, 64)
minInclusive := false
logDebugGrammar("FIELD - GREATER THAN %f", min)
q := NewNumericRangeInclusiveQuery(&min, nil, &minInclusive, nil)
q.SetField(field)
yyVAL.q = q
}
case 17:
yyDollar = yyS[yypt-5 : yypt+1]
//line query_string.y:185
{
field := yyDollar[1].s
min, _ := strconv.ParseFloat(yyDollar[5].s, 64)
minInclusive := true
logDebugGrammar("FIELD - GREATER THAN OR EQUAL %f", min)
q := NewNumericRangeInclusiveQuery(&min, nil, &minInclusive, nil)
q.SetField(field)
yyVAL.q = q
}
case 18:
yyDollar = yyS[yypt-4 : yypt+1]
//line query_string.y:195
{
field := yyDollar[1].s
max, _ := strconv.ParseFloat(yyDollar[4].s, 64)
maxInclusive := false
logDebugGrammar("FIELD - LESS THAN %f", max)
q := NewNumericRangeInclusiveQuery(nil, &max, nil, &maxInclusive)
q.SetField(field)
yyVAL.q = q
}
case 19:
yyDollar = yyS[yypt-5 : yypt+1]
//line query_string.y:205
{
field := yyDollar[1].s
max, _ := strconv.ParseFloat(yyDollar[5].s, 64)
maxInclusive := true
logDebugGrammar("FIELD - LESS THAN OR EQUAL %f", max)
q := NewNumericRangeInclusiveQuery(nil, &max, nil, &maxInclusive)
q.SetField(field)
yyVAL.q = q
}
case 20:
yyDollar = yyS[yypt-4 : yypt+1]
//line query_string.y:215
{
field := yyDollar[1].s
minInclusive := false
phrase := yyDollar[4].s
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)
yyVAL.q = q
}
case 21:
yyDollar = yyS[yypt-5 : yypt+1]
//line query_string.y:230
{
field := yyDollar[1].s
minInclusive := true
phrase := yyDollar[5].s
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)
yyVAL.q = q
}
case 22:
yyDollar = yyS[yypt-4 : yypt+1]
//line query_string.y:245
{
field := yyDollar[1].s
maxInclusive := false
phrase := yyDollar[4].s
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)
yyVAL.q = q
}
case 23:
yyDollar = yyS[yypt-5 : yypt+1]
//line query_string.y:260
{
field := yyDollar[1].s
maxInclusive := true
phrase := yyDollar[5].s
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)
yyVAL.q = q
}
case 24:
yyDollar = yyS[yypt-0 : yypt+1]
//line query_string.y:276
{
yyVAL.pf = nil
}
case 25:
yyDollar = yyS[yypt-1 : yypt+1]
//line query_string.y:280
{
yyVAL.pf = nil
boost, err := strconv.ParseFloat(yyDollar[1].s, 64)
if err != nil {
yylex.(*lexerWrapper).lex.Error(fmt.Sprintf("invalid boost value: %v", err))
} else {
yyVAL.pf = &boost
}
logDebugGrammar("BOOST %f", boost)
}
}
goto yystack /* stack new state and value */
}