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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 cquads
import (
"fmt"
"unicode"
"github.com/cayleygraph/cayley/quad"
)
// line 30 "parse.go"
const quads_start int = 1
const quads_first_final int = 178
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
spec = -1
isEscaped bool
isQuoted bool
q quad.Quad
)
// line 66 "parse.go"
{
cs = quads_start
}
// line 61 "parse.rl"
// line 74 "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 178:
goto st_case_178
case 179:
goto st_case_179
case 180:
goto st_case_180
case 181:
goto st_case_181
case 182:
goto st_case_182
case 183:
goto st_case_183
case 184:
goto st_case_184
case 185:
goto st_case_185
case 186:
goto st_case_186
case 187:
goto st_case_187
case 188:
goto st_case_188
case 189:
goto st_case_189
case 190:
goto st_case_190
case 191:
goto st_case_191
case 192:
goto st_case_192
case 193:
goto st_case_193
case 194:
goto st_case_194
case 195:
goto st_case_195
case 10:
goto st_case_10
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 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 196:
goto st_case_196
case 197:
goto st_case_197
case 198:
goto st_case_198
case 199:
goto st_case_199
case 200:
goto st_case_200
case 201:
goto st_case_201
case 202:
goto st_case_202
case 203:
goto st_case_203
case 204:
goto st_case_204
case 205:
goto st_case_205
case 206:
goto st_case_206
case 207:
goto st_case_207
case 208:
goto st_case_208
case 209:
goto st_case_209
case 210:
goto st_case_210
case 211:
goto st_case_211
case 212:
goto st_case_212
case 213:
goto st_case_213
case 214:
goto st_case_214
case 215:
goto st_case_215
case 216:
goto st_case_216
case 217:
goto st_case_217
case 218:
goto st_case_218
case 219:
goto st_case_219
case 220:
goto st_case_220
case 221:
goto st_case_221
case 222:
goto st_case_222
case 223:
goto st_case_223
case 224:
goto st_case_224
case 225:
goto st_case_225
case 226:
goto st_case_226
case 227:
goto st_case_227
case 228:
goto st_case_228
case 229:
goto st_case_229
case 230:
goto st_case_230
case 231:
goto st_case_231
case 232:
goto st_case_232
case 233:
goto st_case_233
case 234:
goto st_case_234
case 235:
goto st_case_235
case 236:
goto st_case_236
case 237:
goto st_case_237
case 238:
goto st_case_238
case 239:
goto st_case_239
case 240:
goto st_case_240
case 241:
goto st_case_241
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 59:
goto st_case_59
case 60:
goto st_case_60
case 61:
goto st_case_61
case 62:
goto st_case_62
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
case 88:
goto st_case_88
case 89:
goto st_case_89
case 90:
goto st_case_90
case 91:
goto st_case_91
case 92:
goto st_case_92
case 93:
goto st_case_93
case 94:
goto st_case_94
case 95:
goto st_case_95
case 96:
goto st_case_96
case 97:
goto st_case_97
case 98:
goto st_case_98
case 99:
goto st_case_99
case 100:
goto st_case_100
case 101:
goto st_case_101
case 102:
goto st_case_102
case 103:
goto st_case_103
case 104:
goto st_case_104
case 105:
goto st_case_105
case 106:
goto st_case_106
case 107:
goto st_case_107
case 108:
goto st_case_108
case 109:
goto st_case_109
case 110:
goto st_case_110
case 111:
goto st_case_111
case 112:
goto st_case_112
case 113:
goto st_case_113
case 114:
goto st_case_114
case 115:
goto st_case_115
case 116:
goto st_case_116
case 117:
goto st_case_117
case 118:
goto st_case_118
case 119:
goto st_case_119
case 120:
goto st_case_120
case 121:
goto st_case_121
case 122:
goto st_case_122
case 123:
goto st_case_123
case 124:
goto st_case_124
case 125:
goto st_case_125
case 126:
goto st_case_126
case 127:
goto st_case_127
case 128:
goto st_case_128
case 129:
goto st_case_129
case 130:
goto st_case_130
case 131:
goto st_case_131
case 132:
goto st_case_132
case 133:
goto st_case_133
case 134:
goto st_case_134
case 135:
goto st_case_135
case 136:
goto st_case_136
case 137:
goto st_case_137
case 138:
goto st_case_138
case 139:
goto st_case_139
case 140:
goto st_case_140
case 141:
goto st_case_141
case 142:
goto st_case_142
case 143:
goto st_case_143
case 144:
goto st_case_144
case 145:
goto st_case_145
case 146:
goto st_case_146
case 147:
goto st_case_147
case 148:
goto st_case_148
case 149:
goto st_case_149
case 150:
goto st_case_150
case 151:
goto st_case_151
case 152:
goto st_case_152
case 153:
goto st_case_153
case 154:
goto st_case_154
case 155:
goto st_case_155
case 156:
goto st_case_156
case 157:
goto st_case_157
case 158:
goto st_case_158
case 159:
goto st_case_159
case 160:
goto st_case_160
case 161:
goto st_case_161
case 162:
goto st_case_162
case 163:
goto st_case_163
case 164:
goto st_case_164
case 165:
goto st_case_165
case 166:
goto st_case_166
case 167:
goto st_case_167
case 168:
goto st_case_168
case 169:
goto st_case_169
case 170:
goto st_case_170
case 171:
goto st_case_171
case 172:
goto st_case_172
case 173:
goto st_case_173
case 174:
goto st_case_174
case 175:
goto st_case_175
case 176:
goto st_case_176
case 177:
goto st_case_177
}
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 33:
goto tr2
case 34:
goto tr3
case 46:
goto tr4
case 92:
goto tr5
case 95:
goto tr6
}
switch {
case data[p] > 126:
if 128 <= data[p] && data[p] <= 1114111 {
goto tr2
}
case data[p] >= 36:
goto tr2
}
goto tr0
tr0:
// line 89 "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 610 "parse.go"
st_case_0:
st0:
cs = 0
goto _out
tr2:
// line 26 "actions.rl"
subject = p
goto st2
tr203:
// line 18 "actions.rl"
isEscaped = true
goto st2
st2:
if p++; p == pe {
goto _test_eof2
}
st_case_2:
// line 634 "parse.go"
switch data[p] {
case 9:
goto tr7
case 32:
goto tr7
case 33:
goto st2
case 46:
goto st136
case 92:
goto st137
}
switch {
case data[p] > 126:
if 128 <= data[p] && data[p] <= 1114111 {
goto st2
}
case data[p] >= 35:
goto st2
}
goto tr0
tr7:
// line 46 "actions.rl"
if subject < 0 {
panic("unexpected parser state: subject start not set")
}
q.Subject = unEscape(data[subject:p], spec-subject, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st3
tr202:
// line 18 "actions.rl"
isEscaped = true
// line 46 "actions.rl"
if subject < 0 {
panic("unexpected parser state: subject start not set")
}
q.Subject = unEscape(data[subject:p], spec-subject, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st3
tr215:
// line 22 "actions.rl"
isQuoted = true
// line 46 "actions.rl"
if subject < 0 {
panic("unexpected parser state: subject start not set")
}
q.Subject = unEscape(data[subject:p], spec-subject, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st3
st3:
if p++; p == pe {
goto _test_eof3
}
st_case_3:
// line 707 "parse.go"
switch data[p] {
case 9:
goto st3
case 32:
goto st3
case 33:
goto tr12
case 34:
goto tr13
case 46:
goto tr14
case 92:
goto tr15
case 95:
goto tr16
}
switch {
case data[p] > 126:
if 128 <= data[p] && data[p] <= 1114111 {
goto tr12
}
case data[p] >= 36:
goto tr12
}
goto tr0
tr12:
// line 30 "actions.rl"
predicate = p
goto st4
tr153:
// line 18 "actions.rl"
isEscaped = true
goto st4
st4:
if p++; p == pe {
goto _test_eof4
}
st_case_4:
// line 752 "parse.go"
switch data[p] {
case 9:
goto tr17
case 32:
goto tr17
case 33:
goto st4
case 46:
goto st94
case 92:
goto st95
}
switch {
case data[p] > 126:
if 128 <= data[p] && data[p] <= 1114111 {
goto st4
}
case data[p] >= 35:
goto st4
}
goto tr0
tr17:
// line 55 "actions.rl"
if predicate < 0 {
panic("unexpected parser state: predicate start not set")
}
q.Predicate = unEscape(data[predicate:p], spec-predicate, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st5
tr152:
// line 18 "actions.rl"
isEscaped = true
// line 55 "actions.rl"
if predicate < 0 {
panic("unexpected parser state: predicate start not set")
}
q.Predicate = unEscape(data[predicate:p], spec-predicate, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st5
tr165:
// line 22 "actions.rl"
isQuoted = true
// line 55 "actions.rl"
if predicate < 0 {
panic("unexpected parser state: predicate start not set")
}
q.Predicate = unEscape(data[predicate:p], spec-predicate, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st5
st5:
if p++; p == pe {
goto _test_eof5
}
st_case_5:
// line 825 "parse.go"
switch data[p] {
case 9:
goto st5
case 32:
goto st5
case 33:
goto tr22
case 34:
goto tr23
case 46:
goto tr24
case 92:
goto tr25
case 95:
goto tr26
}
switch {
case data[p] > 126:
if 128 <= data[p] && data[p] <= 1114111 {
goto tr22
}
case data[p] >= 36:
goto tr22
}
goto tr0
tr22:
// line 34 "actions.rl"
object = p
goto st6
tr101:
// line 18 "actions.rl"
isEscaped = true
goto st6
st6:
if p++; p == pe {
goto _test_eof6
}
st_case_6:
// line 870 "parse.go"
switch data[p] {
case 9:
goto tr27
case 32:
goto tr27
case 33:
goto st6
case 46:
goto tr29
case 92:
goto st53
}
switch {
case data[p] > 126:
if 128 <= data[p] && data[p] <= 1114111 {
goto st6
}
case data[p] >= 35:
goto st6
}
goto tr0
tr27:
// line 64 "actions.rl"
if object < 0 {
panic("unexpected parser state: object start not set")
}
q.Object = unEscape(data[object:p], spec-object, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st7
tr100:
// line 18 "actions.rl"
isEscaped = true
// line 64 "actions.rl"
if object < 0 {
panic("unexpected parser state: object start not set")
}
q.Object = unEscape(data[object:p], spec-object, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st7
tr113:
// line 22 "actions.rl"
isQuoted = true
// line 64 "actions.rl"
if object < 0 {
panic("unexpected parser state: object start not set")
}
q.Object = unEscape(data[object:p], spec-object, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st7
st7:
if p++; p == pe {
goto _test_eof7
}
st_case_7:
// line 943 "parse.go"
switch data[p] {
case 9:
goto st7
case 32:
goto st7
case 33:
goto tr32
case 34:
goto tr33
case 46:
goto tr34
case 92:
goto tr35
case 95:
goto tr36
}
switch {
case data[p] > 126:
if 128 <= data[p] && data[p] <= 1114111 {
goto tr32
}
case data[p] >= 36:
goto tr32
}
goto tr0
tr32:
// line 38 "actions.rl"
label = p
goto st8
tr48:
// line 18 "actions.rl"
isEscaped = true
goto st8
st8:
if p++; p == pe {
goto _test_eof8
}
st_case_8:
// line 988 "parse.go"
switch data[p] {
case 9:
goto tr37
case 32:
goto tr37
case 33:
goto st8
case 46:
goto tr39
case 92:
goto st11
}
switch {
case data[p] > 126:
if 128 <= data[p] && data[p] <= 1114111 {
goto st8
}
case data[p] >= 35:
goto st8
}
goto tr0
tr37:
// line 73 "actions.rl"
if label < 0 {
panic("unexpected parser state: label start not set")
}
q.Label = unEscape(data[label:p], spec-label, isQuoted, isEscaped)
isEscaped = false
isQuoted = false
goto st9
tr47:
// line 18 "actions.rl"
isEscaped = true
// line 73 "actions.rl"
if label < 0 {
panic("unexpected parser state: label start not set")
}
q.Label = unEscape(data[label:p], spec-label, isQuoted, isEscaped)