mirror of https://github.com/prometheus/prometheus
551 lines
8.7 KiB
Go
551 lines
8.7 KiB
Go
// CAUTION: Generated file - DO NOT EDIT.
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// Copyright 2017 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package textparse
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import (
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"github.com/pkg/errors"
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)
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const (
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sInit = iota
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sComment
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sMeta1
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sMeta2
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sLabels
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sLValue
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sValue
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sTimestamp
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)
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// Lex is called by the parser generated by "go tool yacc" to obtain each
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// token. The method is opened before the matching rules block and closed at
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// the end of the file.
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func (l *promlexer) Lex() token {
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if l.i >= len(l.b) {
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return tEOF
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}
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c := l.b[l.i]
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l.start = l.i
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yystate0:
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switch yyt := l.state; yyt {
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default:
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panic(errors.Errorf(`invalid start condition %d`, yyt))
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case 0: // start condition: INITIAL
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goto yystart1
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case 1: // start condition: sComment
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goto yystart8
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case 2: // start condition: sMeta1
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goto yystart19
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case 3: // start condition: sMeta2
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goto yystart21
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case 4: // start condition: sLabels
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goto yystart24
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case 5: // start condition: sLValue
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goto yystart29
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case 6: // start condition: sValue
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goto yystart33
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case 7: // start condition: sTimestamp
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goto yystart36
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}
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goto yystate0 // silence unused label error
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goto yystate1 // silence unused label error
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yystate1:
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c = l.next()
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yystart1:
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switch {
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default:
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goto yyabort
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case c == '#':
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goto yystate5
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case c == ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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goto yystate7
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case c == '\n':
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goto yystate4
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case c == '\t' || c == ' ':
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goto yystate3
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case c == '\x00':
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goto yystate2
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}
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yystate2:
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c = l.next()
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goto yyrule1
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yystate3:
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c = l.next()
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switch {
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default:
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goto yyrule3
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case c == '\t' || c == ' ':
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goto yystate3
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}
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yystate4:
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c = l.next()
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goto yyrule2
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yystate5:
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c = l.next()
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switch {
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default:
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goto yyrule5
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case c == '\t' || c == ' ':
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goto yystate6
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}
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yystate6:
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c = l.next()
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switch {
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default:
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goto yyrule4
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case c == '\t' || c == ' ':
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goto yystate6
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}
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yystate7:
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c = l.next()
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switch {
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default:
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goto yyrule10
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case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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goto yystate7
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}
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goto yystate8 // silence unused label error
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yystate8:
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c = l.next()
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yystart8:
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switch {
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default:
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goto yyabort
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case c == 'H':
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goto yystate9
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case c == 'T':
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goto yystate14
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case c == '\t' || c == ' ':
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goto yystate3
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}
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yystate9:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c == 'E':
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goto yystate10
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}
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yystate10:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c == 'L':
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goto yystate11
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}
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yystate11:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c == 'P':
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goto yystate12
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}
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yystate12:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c == '\t' || c == ' ':
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goto yystate13
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}
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yystate13:
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c = l.next()
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switch {
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default:
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goto yyrule6
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case c == '\t' || c == ' ':
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goto yystate13
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}
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yystate14:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c == 'Y':
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goto yystate15
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}
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yystate15:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c == 'P':
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goto yystate16
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}
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yystate16:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c == 'E':
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goto yystate17
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}
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yystate17:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c == '\t' || c == ' ':
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goto yystate18
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}
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yystate18:
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c = l.next()
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switch {
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default:
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goto yyrule7
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case c == '\t' || c == ' ':
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goto yystate18
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}
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goto yystate19 // silence unused label error
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yystate19:
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c = l.next()
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yystart19:
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switch {
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default:
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goto yyabort
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case c == ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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goto yystate20
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case c == '\t' || c == ' ':
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goto yystate3
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}
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yystate20:
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c = l.next()
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switch {
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default:
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goto yyrule8
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case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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goto yystate20
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}
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goto yystate21 // silence unused label error
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yystate21:
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c = l.next()
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yystart21:
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switch {
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default:
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goto yyrule9
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case c == '\t' || c == ' ':
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goto yystate23
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case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
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goto yystate22
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}
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yystate22:
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c = l.next()
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switch {
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default:
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goto yyrule9
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case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
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goto yystate22
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}
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yystate23:
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c = l.next()
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switch {
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default:
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goto yyrule3
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case c == '\t' || c == ' ':
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goto yystate23
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case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
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goto yystate22
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}
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goto yystate24 // silence unused label error
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yystate24:
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c = l.next()
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yystart24:
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switch {
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default:
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goto yyabort
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case c == ',':
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goto yystate25
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case c == '=':
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goto yystate26
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case c == '\t' || c == ' ':
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goto yystate3
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case c == '}':
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goto yystate28
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case c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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goto yystate27
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}
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yystate25:
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c = l.next()
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goto yyrule15
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yystate26:
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c = l.next()
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goto yyrule14
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yystate27:
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c = l.next()
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switch {
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default:
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goto yyrule12
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case c >= '0' && c <= '9' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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goto yystate27
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}
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yystate28:
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c = l.next()
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goto yyrule13
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goto yystate29 // silence unused label error
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yystate29:
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c = l.next()
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yystart29:
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switch {
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default:
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goto yyabort
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case c == '"':
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goto yystate30
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case c == '\t' || c == ' ':
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goto yystate3
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}
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yystate30:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c == '"':
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goto yystate31
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case c == '\\':
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goto yystate32
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case c >= '\x01' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
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goto yystate30
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}
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yystate31:
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c = l.next()
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goto yyrule16
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yystate32:
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c = l.next()
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switch {
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default:
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goto yyabort
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case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
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goto yystate30
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}
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goto yystate33 // silence unused label error
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yystate33:
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c = l.next()
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yystart33:
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switch {
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default:
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goto yyabort
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case c == '\t' || c == ' ':
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goto yystate3
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case c == '{':
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goto yystate35
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case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'z' || c >= '|' && c <= 'ÿ':
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goto yystate34
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}
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yystate34:
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c = l.next()
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switch {
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default:
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goto yyrule17
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case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'z' || c >= '|' && c <= 'ÿ':
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goto yystate34
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}
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yystate35:
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c = l.next()
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goto yyrule11
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goto yystate36 // silence unused label error
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yystate36:
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c = l.next()
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yystart36:
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switch {
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default:
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goto yyabort
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case c == '\n':
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goto yystate37
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case c == '\t' || c == ' ':
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goto yystate3
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case c >= '0' && c <= '9':
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goto yystate38
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}
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yystate37:
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c = l.next()
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goto yyrule19
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yystate38:
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c = l.next()
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switch {
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default:
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goto yyrule18
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case c >= '0' && c <= '9':
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goto yystate38
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}
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yyrule1: // \0
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{
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return tEOF
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}
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yyrule2: // \n
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{
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l.state = sInit
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return tLinebreak
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goto yystate0
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}
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yyrule3: // [ \t]+
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{
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return tWhitespace
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}
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yyrule4: // #[ \t]+
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{
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l.state = sComment
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goto yystate0
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}
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yyrule5: // #
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{
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return l.consumeComment()
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}
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yyrule6: // HELP[\t ]+
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{
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l.state = sMeta1
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return tHelp
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goto yystate0
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}
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yyrule7: // TYPE[\t ]+
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{
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l.state = sMeta1
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return tType
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goto yystate0
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}
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yyrule8: // {M}({M}|{D})*
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{
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l.state = sMeta2
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return tMName
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goto yystate0
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}
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yyrule9: // {C}*
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{
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l.state = sInit
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return tText
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goto yystate0
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}
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yyrule10: // {M}({M}|{D})*
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{
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l.state = sValue
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return tMName
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goto yystate0
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}
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yyrule11: // \{
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{
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l.state = sLabels
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return tBraceOpen
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goto yystate0
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}
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yyrule12: // {L}({L}|{D})*
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{
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return tLName
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}
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yyrule13: // \}
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{
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l.state = sValue
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return tBraceClose
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goto yystate0
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}
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yyrule14: // =
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{
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l.state = sLValue
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return tEqual
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goto yystate0
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}
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yyrule15: // ,
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{
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return tComma
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}
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yyrule16: // \"(\\.|[^\\"])*\"
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{
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l.state = sLabels
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return tLValue
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goto yystate0
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}
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yyrule17: // [^{ \t\n]+
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{
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l.state = sTimestamp
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return tValue
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goto yystate0
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}
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yyrule18: // {D}+
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{
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return tTimestamp
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}
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yyrule19: // \n
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{
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l.state = sInit
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return tLinebreak
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goto yystate0
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}
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panic("unreachable")
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goto yyabort // silence unused label error
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yyabort: // no lexem recognized
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// Workaround to gobble up comments that started with a HELP or TYPE
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// prefix. We just consume all characters until we reach a newline.
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// This saves us from adding disproportionate complexity to the parser.
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if l.state == sComment {
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return l.consumeComment()
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}
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return tInvalid
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}
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|
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func (l *promlexer) consumeComment() token {
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for c := l.cur(); ; c = l.next() {
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switch c {
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case 0:
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return tEOF
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case '\n':
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l.state = sInit
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return tComment
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}
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}
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}
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