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parse.go
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parse.go
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// line 1 "parse.rl"
// GO SOURCE FILE MACHINE GENERATED BY RAGEL; DO NOT EDIT
// Copyright 2014 The Cayley Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package nquads
import (
"fmt"
"unicode"
"github.com/google/cayley/quad"
)
// line 30 "parse.go"
const quads_start int = 1
const quads_first_final int = 88
const quads_error int = 0
const quads_en_statement int = 1
// line 34 "parse.rl"
// Parse returns a valid quad.Quad or a non-nil error. Parse does
// handle comments except where the comment placement does not prevent
// a complete valid quad.Quad from being defined.
func Parse(statement string) (quad.Quad, error) {
data := []rune(statement)
var (
cs, p int
pe = len(data)
eof = pe
subject = -1
predicate = -1
object = -1
label = -1
isEscaped bool
q quad.Quad
)
// line 63 "parse.go"
{
cs = quads_start
}
// line 58 "parse.rl"
// line 71 "parse.go"
{
if p == pe {
goto _test_eof
}
switch cs {
case 1:
goto st_case_1
case 0:
goto st_case_0
case 2:
goto st_case_2
case 3:
goto st_case_3
case 4:
goto st_case_4
case 5:
goto st_case_5
case 6:
goto st_case_6
case 7:
goto st_case_7
case 8:
goto st_case_8
case 9:
goto st_case_9
case 10:
goto st_case_10
case 88:
goto st_case_88
case 89:
goto st_case_89
case 11:
goto st_case_11
case 12:
goto st_case_12
case 13:
goto st_case_13
case 14:
goto st_case_14
case 15:
goto st_case_15
case 16:
goto st_case_16
case 17:
goto st_case_17
case 18:
goto st_case_18
case 19:
goto st_case_19
case 20:
goto st_case_20
case 21:
goto st_case_21
case 22:
goto st_case_22
case 23:
goto st_case_23
case 24:
goto st_case_24
case 25:
goto st_case_25
case 26:
goto st_case_26
case 90:
goto st_case_90
case 27:
goto st_case_27
case 28:
goto st_case_28
case 29:
goto st_case_29
case 30:
goto st_case_30
case 31:
goto st_case_31
case 32:
goto st_case_32
case 33:
goto st_case_33
case 34:
goto st_case_34
case 35:
goto st_case_35
case 36:
goto st_case_36
case 37:
goto st_case_37
case 38:
goto st_case_38
case 39:
goto st_case_39
case 40:
goto st_case_40
case 41:
goto st_case_41
case 42:
goto st_case_42
case 43:
goto st_case_43
case 44:
goto st_case_44
case 45:
goto st_case_45
case 46:
goto st_case_46
case 47:
goto st_case_47
case 48:
goto st_case_48
case 49:
goto st_case_49
case 50:
goto st_case_50
case 51:
goto st_case_51
case 52:
goto st_case_52
case 53:
goto st_case_53
case 54:
goto st_case_54
case 55:
goto st_case_55
case 56:
goto st_case_56
case 57:
goto st_case_57
case 58:
goto st_case_58
case 91:
goto st_case_91
case 59:
goto st_case_59
case 60:
goto st_case_60
case 61:
goto st_case_61
case 62:
goto st_case_62
case 92:
goto st_case_92
case 63:
goto st_case_63
case 64:
goto st_case_64
case 65:
goto st_case_65
case 66:
goto st_case_66
case 67:
goto st_case_67
case 68:
goto st_case_68
case 69:
goto st_case_69
case 70:
goto st_case_70
case 71:
goto st_case_71
case 72:
goto st_case_72
case 73:
goto st_case_73
case 74:
goto st_case_74
case 75:
goto st_case_75
case 76:
goto st_case_76
case 77:
goto st_case_77
case 78:
goto st_case_78
case 79:
goto st_case_79
case 80:
goto st_case_80
case 81:
goto st_case_81
case 82:
goto st_case_82
case 83:
goto st_case_83
case 84:
goto st_case_84
case 85:
goto st_case_85
case 86:
goto st_case_86
case 87:
goto st_case_87
}
goto st_out
st1:
if p++; p == pe {
goto _test_eof1
}
st_case_1:
switch data[p] {
case 9:
goto st1
case 32:
goto st1
case 60:
goto tr2
case 95:
goto tr3
}
goto tr0
tr0:
// line 77 "actions.rl"
if p < len(data) {
if r := data[p]; r < unicode.MaxASCII {
return q, fmt.Errorf("%v: unexpected rune %q at %d", quad.ErrInvalid, data[p], p)
} else {
return q, fmt.Errorf("%v: unexpected rune %q (\\u%04x) at %d", quad.ErrInvalid, data[p], data[p], p)
}
}
return q, quad.ErrIncomplete
goto st0
// line 295 "parse.go"
st_case_0:
st0:
cs = 0
goto _out
tr2:
// line 22 "actions.rl"
subject = p
goto st2
tr120:
// line 18 "actions.rl"
isEscaped = true
goto st2
st2:
if p++; p == pe {
goto _test_eof2
}
st_case_2:
// line 319 "parse.go"
switch data[p] {
case 33:
goto st2
case 62:
goto st3
case 92:
goto st74
case 95:
goto st2
case 126:
goto st2
}
switch {
case data[p] < 61:
if 35 <= data[p] && data[p] <= 59 {
goto st2
}
case data[p] > 93:
switch {
case data[p] > 122:
if 128 <= data[p] && data[p] <= 1114111 {
goto st2
}
case data[p] >= 97:
goto st2
}
default:
goto st2
}
goto tr0
tr121:
// line 18 "actions.rl"
isEscaped = true
goto st3
st3:
if p++; p == pe {
goto _test_eof3
}
st_case_3:
// line 362 "parse.go"
switch data[p] {
case 9:
goto tr7
case 32:
goto tr7
case 60:
goto tr8
}
goto tr0
tr7:
// line 38 "actions.rl"
if subject < 0 {
panic("unexpected parser state: subject start not set")
}
q.Subject = unEscape(data[subject:p], isEscaped)
isEscaped = false
goto st4
st4:
if p++; p == pe {
goto _test_eof4
}
st_case_4:
// line 388 "parse.go"
switch data[p] {
case 9:
goto st4
case 32:
goto st4
case 60:
goto tr10
}
goto tr0
tr8:
// line 38 "actions.rl"
if subject < 0 {
panic("unexpected parser state: subject start not set")
}
q.Subject = unEscape(data[subject:p], isEscaped)
isEscaped = false
// line 26 "actions.rl"
predicate = p
goto st5
tr10:
// line 26 "actions.rl"
predicate = p
goto st5
tr108:
// line 18 "actions.rl"
isEscaped = true
goto st5
st5:
if p++; p == pe {
goto _test_eof5
}
st_case_5:
// line 433 "parse.go"
switch data[p] {
case 33:
goto st5
case 62:
goto st6
case 92:
goto st64
case 95:
goto st5
case 126:
goto st5
}
switch {
case data[p] < 61:
if 35 <= data[p] && data[p] <= 59 {
goto st5
}
case data[p] > 93:
switch {
case data[p] > 122:
if 128 <= data[p] && data[p] <= 1114111 {
goto st5
}
case data[p] >= 97:
goto st5
}
default:
goto st5
}
goto tr0
tr109:
// line 18 "actions.rl"
isEscaped = true
goto st6
st6:
if p++; p == pe {
goto _test_eof6
}
st_case_6:
// line 476 "parse.go"
switch data[p] {
case 9:
goto tr14
case 32:
goto tr14
case 34:
goto tr15
case 60:
goto tr16
case 95:
goto tr17
}
goto tr0
tr14:
// line 46 "actions.rl"
if predicate < 0 {
panic("unexpected parser state: predicate start not set")
}
q.Predicate = unEscape(data[predicate:p], isEscaped)
isEscaped = false
goto st7
st7:
if p++; p == pe {
goto _test_eof7
}
st_case_7:
// line 506 "parse.go"
switch data[p] {
case 9:
goto st7
case 32:
goto st7
case 34:
goto tr19
case 60:
goto tr20
case 95:
goto tr21
}
goto tr0
tr15:
// line 46 "actions.rl"
if predicate < 0 {
panic("unexpected parser state: predicate start not set")
}
q.Predicate = unEscape(data[predicate:p], isEscaped)
isEscaped = false
// line 30 "actions.rl"
object = p
goto st8
tr19:
// line 30 "actions.rl"
object = p
goto st8
tr79:
// line 18 "actions.rl"
isEscaped = true
goto st8
st8:
if p++; p == pe {
goto _test_eof8
}
st_case_8:
// line 555 "parse.go"
switch data[p] {
case 34:
goto st9
case 92:
goto st46
}
switch {
case data[p] < 11:
if 0 <= data[p] && data[p] <= 9 {
goto st8
}
case data[p] > 12:
if 14 <= data[p] && data[p] <= 1114111 {
goto st8
}
default:
goto st8
}
goto tr0
tr80:
// line 18 "actions.rl"
isEscaped = true
goto st9
st9:
if p++; p == pe {
goto _test_eof9
}
st_case_9:
// line 587 "parse.go"
switch data[p] {
case 9:
goto tr25
case 32:
goto tr25
case 46:
goto tr26
case 60:
goto tr27
case 64:
goto st28
case 94:
goto st32
case 95:
goto tr30
}
goto tr0
tr25:
// line 54 "actions.rl"
if object < 0 {
panic("unexpected parser state: object start not set")
}
q.Object = unEscape(data[object:p], isEscaped)
isEscaped = false
goto st10
tr96:
// line 54 "actions.rl"
if object < 0 {
panic("unexpected parser state: object start not set")
}
q.Object = unEscape(data[object:p], isEscaped)
isEscaped = false
// line 62 "actions.rl"
if label < 0 {
panic("unexpected parser state: label start not set")
}
q.Label = unEscape(data[label:p], isEscaped)
isEscaped = false
goto st10
st10:
if p++; p == pe {
goto _test_eof10
}
st_case_10:
// line 641 "parse.go"
switch data[p] {
case 9:
goto st10
case 32:
goto st10
case 46:
goto st88
case 60:
goto tr33
case 95:
goto tr34
}
goto tr0
tr26:
// line 54 "actions.rl"
if object < 0 {
panic("unexpected parser state: object start not set")
}
q.Object = unEscape(data[object:p], isEscaped)
isEscaped = false
goto st88
tr39:
// line 62 "actions.rl"
if label < 0 {
panic("unexpected parser state: label start not set")
}
q.Label = unEscape(data[label:p], isEscaped)
isEscaped = false
goto st88
st88:
if p++; p == pe {
goto _test_eof88
}
st_case_88:
// line 682 "parse.go"
switch data[p] {
case 9:
goto st88
case 32:
goto st88
case 35:
goto tr127
}
goto st0
tr127:
// line 74 "actions.rl"
goto st89
st89:
if p++; p == pe {
goto _test_eof89
}
st_case_89:
// line 703 "parse.go"
goto st89
tr27:
// line 54 "actions.rl"
if object < 0 {
panic("unexpected parser state: object start not set")
}
q.Object = unEscape(data[object:p], isEscaped)
isEscaped = false
// line 34 "actions.rl"
label = p
goto st11
tr33:
// line 34 "actions.rl"
label = p
goto st11
tr50:
// line 18 "actions.rl"
isEscaped = true
goto st11
st11:
if p++; p == pe {
goto _test_eof11
}
st_case_11:
// line 740 "parse.go"
switch data[p] {
case 33:
goto st11
case 62:
goto st12
case 92:
goto st14
case 95:
goto st11
case 126:
goto st11
}
switch {
case data[p] < 61:
if 35 <= data[p] && data[p] <= 59 {
goto st11
}
case data[p] > 93:
switch {
case data[p] > 122:
if 128 <= data[p] && data[p] <= 1114111 {
goto st11
}
case data[p] >= 97:
goto st11
}
default:
goto st11
}
goto tr0
tr51:
// line 18 "actions.rl"
isEscaped = true
goto st12
st12:
if p++; p == pe {
goto _test_eof12
}
st_case_12:
// line 783 "parse.go"
switch data[p] {
case 9:
goto tr38
case 32:
goto tr38
case 46:
goto tr39
}
goto tr0
tr38:
// line 62 "actions.rl"
if label < 0 {
panic("unexpected parser state: label start not set")
}
q.Label = unEscape(data[label:p], isEscaped)
isEscaped = false
goto st13
st13:
if p++; p == pe {
goto _test_eof13
}
st_case_13:
// line 809 "parse.go"
switch data[p] {
case 9:
goto st13
case 32:
goto st13
case 46:
goto st88
}
goto tr0
tr52:
// line 18 "actions.rl"
isEscaped = true
goto st14
st14:
if p++; p == pe {
goto _test_eof14
}
st_case_14:
// line 831 "parse.go"
switch data[p] {
case 85:
goto st15
case 117:
goto st19
}
goto tr0
st15:
if p++; p == pe {
goto _test_eof15
}
st_case_15:
switch {
case data[p] < 65:
if 48 <= data[p] && data[p] <= 57 {
goto st16
}
case data[p] > 70:
if 97 <= data[p] && data[p] <= 102 {
goto st16
}
default:
goto st16
}
goto tr0
st16:
if p++; p == pe {
goto _test_eof16
}
st_case_16:
switch {
case data[p] < 65:
if 48 <= data[p] && data[p] <= 57 {
goto st17
}
case data[p] > 70:
if 97 <= data[p] && data[p] <= 102 {
goto st17
}
default:
goto st17
}
goto tr0
st17:
if p++; p == pe {
goto _test_eof17
}
st_case_17:
switch {
case data[p] < 65:
if 48 <= data[p] && data[p] <= 57 {
goto st18
}
case data[p] > 70:
if 97 <= data[p] && data[p] <= 102 {
goto st18
}
default:
goto st18
}
goto tr0
st18:
if p++; p == pe {
goto _test_eof18
}
st_case_18:
switch {
case data[p] < 65:
if 48 <= data[p] && data[p] <= 57 {
goto st19
}
case data[p] > 70:
if 97 <= data[p] && data[p] <= 102 {
goto st19
}
default:
goto st19
}
goto tr0
st19:
if p++; p == pe {
goto _test_eof19
}
st_case_19:
switch {
case data[p] < 65:
if 48 <= data[p] && data[p] <= 57 {
goto st20
}
case data[p] > 70:
if 97 <= data[p] && data[p] <= 102 {
goto st20
}
default:
goto st20
}
goto tr0
st20:
if p++; p == pe {
goto _test_eof20
}
st_case_20:
switch {
case data[p] < 65:
if 48 <= data[p] && data[p] <= 57 {
goto st21
}
case data[p] > 70:
if 97 <= data[p] && data[p] <= 102 {
goto st21
}
default:
goto st21
}
goto tr0
st21:
if p++; p == pe {
goto _test_eof21
}
st_case_21:
switch {
case data[p] < 65:
if 48 <= data[p] && data[p] <= 57 {
goto st22
}
case data[p] > 70:
if 97 <= data[p] && data[p] <= 102 {
goto st22
}
default:
goto st22
}
goto tr0
st22:
if p++; p == pe {
goto _test_eof22
}
st_case_22:
switch {
case data[p] < 65:
if 48 <= data[p] && data[p] <= 57 {
goto st23
}
case data[p] > 70:
if 97 <= data[p] && data[p] <= 102 {
goto st23
}
default:
goto st23
}
goto tr0
st23:
if p++; p == pe {
goto _test_eof23
}
st_case_23:
switch data[p] {
case 33:
goto tr50
case 62:
goto tr51
case 92:
goto tr52
case 95:
goto tr50
case 126:
goto tr50
}
switch {
case data[p] < 61: