mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-16 10:34:06 -08:00
a28d7865ad
This adds support for the new grammar of `{"metric_name", "l1"="val"}` to promql and some of the exposition formats.
This grammar will also be valid for non-UTF-8 names.
UTF-8 names will not be considered valid unless model.NameValidationScheme is changed.
This does not update the go expfmt parser in text_parse.go, which will be addressed by https://github.com/prometheus/common/issues/554/.
Part of https://github.com/prometheus/prometheus/issues/13095
Signed-off-by: Owen Williams <owen.williams@grafana.com>
657 lines
9.9 KiB
Go
657 lines
9.9 KiB
Go
// Code generated by golex. 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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"fmt"
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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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sExemplar
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sEValue
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sETimestamp
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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(fmt.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 yystart9
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case 2: // start condition: sMeta1
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goto yystart20
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case 3: // start condition: sMeta2
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goto yystart25
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case 4: // start condition: sLabels
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goto yystart28
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case 5: // start condition: sLValue
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goto yystart36
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case 6: // start condition: sValue
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goto yystart40
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case 7: // start condition: sTimestamp
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goto yystart43
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}
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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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case c == '{':
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goto yystate8
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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 yyrule11
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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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yystate8:
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c = l.next()
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goto yyrule13
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yystate9:
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c = l.next()
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yystart9:
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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 yystate10
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case c == 'T':
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goto yystate15
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case c == '\t' || c == ' ':
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goto yystate3
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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 == 'E':
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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 == 'L':
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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 == 'P':
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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 yyabort
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case c == '\t' || c == ' ':
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goto yystate14
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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 yyrule6
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case c == '\t' || c == ' ':
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goto yystate14
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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 == 'Y':
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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 == 'P':
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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 == 'E':
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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 yyabort
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case c == '\t' || c == ' ':
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goto yystate19
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}
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yystate19:
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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 yystate19
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}
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yystate20:
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c = l.next()
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yystart20:
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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 yystate21
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case c == ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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goto yystate24
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case c == '\t' || c == ' ':
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goto yystate3
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}
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yystate21:
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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 yystate22
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case c == '\\':
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goto yystate23
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case c >= '\x01' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
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goto yystate21
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}
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yystate22:
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c = l.next()
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goto yyrule8
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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 yyabort
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case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
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goto yystate21
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}
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yystate24:
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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 >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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goto yystate24
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}
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yystate25:
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c = l.next()
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yystart25:
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switch {
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default:
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goto yyrule10
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case c == '\t' || c == ' ':
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goto yystate27
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case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
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goto yystate26
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}
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yystate26:
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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 >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
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goto yystate26
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}
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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 yyrule3
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case c == '\t' || c == ' ':
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goto yystate27
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case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
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goto yystate26
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}
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yystate28:
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c = l.next()
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yystart28:
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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 yystate29
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case c == ',':
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goto yystate32
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case c == '=':
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goto yystate33
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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 >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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goto yystate34
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}
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yystate29:
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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 yystate30
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case c == '\\':
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goto yystate31
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case c >= '\x01' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
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goto yystate29
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}
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yystate30:
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c = l.next()
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goto yyrule15
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yystate31:
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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 yystate29
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}
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yystate32:
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c = l.next()
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goto yyrule18
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yystate33:
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c = l.next()
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goto yyrule17
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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 yyrule14
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case c >= '0' && c <= '9' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
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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 yyrule16
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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 == '"':
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goto yystate37
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case c == '\t' || c == ' ':
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goto yystate3
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}
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yystate37:
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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 yystate38
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case c == '\\':
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goto yystate39
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case c >= '\x01' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
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goto yystate37
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}
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yystate38:
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c = l.next()
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goto yyrule19
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yystate39:
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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 yystate37
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}
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yystate40:
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c = l.next()
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yystart40:
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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 yystate42
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case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'z' || c >= '|' && c <= 'ÿ':
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goto yystate41
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}
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yystate41:
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c = l.next()
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switch {
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default:
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goto yyrule20
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case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'z' || c >= '|' && c <= 'ÿ':
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goto yystate41
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}
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yystate42:
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c = l.next()
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goto yyrule12
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yystate43:
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c = l.next()
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yystart43:
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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 yystate44
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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 yystate45
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}
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yystate44:
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c = l.next()
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goto yyrule22
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yystate45:
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c = l.next()
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switch {
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default:
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goto yyrule21
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case c >= '0' && c <= '9':
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goto yystate45
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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: // \"(\\.|[^\\"])*\"
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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: // {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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|
yyrule10: // {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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|
yyrule11: // {M}({M}|{D})*
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|
{
|
|
l.state = sValue
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|
return tMName
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goto yystate0
|
|
}
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|
yyrule12: // \{
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|
{
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|
l.state = sLabels
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|
return tBraceOpen
|
|
goto yystate0
|
|
}
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|
yyrule13: // \{
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|
{
|
|
l.state = sLabels
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|
return tBraceOpen
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|
goto yystate0
|
|
}
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|
yyrule14: // {L}({L}|{D})*
|
|
{
|
|
return tLName
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|
}
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|
yyrule15: // \"(\\.|[^\\"])*\"
|
|
{
|
|
l.state = sLabels
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|
return tQString
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|
goto yystate0
|
|
}
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|
yyrule16: // \}
|
|
{
|
|
l.state = sValue
|
|
return tBraceClose
|
|
goto yystate0
|
|
}
|
|
yyrule17: // =
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|
{
|
|
l.state = sLValue
|
|
return tEqual
|
|
goto yystate0
|
|
}
|
|
yyrule18: // ,
|
|
{
|
|
return tComma
|
|
}
|
|
yyrule19: // \"(\\.|[^\\"])*\"
|
|
{
|
|
l.state = sLabels
|
|
return tLValue
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|
goto yystate0
|
|
}
|
|
yyrule20: // [^{ \t\n]+
|
|
{
|
|
l.state = sTimestamp
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|
return tValue
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|
goto yystate0
|
|
}
|
|
yyrule21: // {D}+
|
|
{
|
|
return tTimestamp
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|
}
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|
yyrule22: // \n
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|
if true { // avoid go vet determining the below panic will not be reached
|
|
l.state = sInit
|
|
return tLinebreak
|
|
goto yystate0
|
|
}
|
|
panic("unreachable")
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|
|
|
yyabort: // no lexem recognized
|
|
// silence unused label errors for build and satisfy go vet reachability analysis
|
|
{
|
|
if false {
|
|
goto yyabort
|
|
}
|
|
if false {
|
|
goto yystate0
|
|
}
|
|
if false {
|
|
goto yystate1
|
|
}
|
|
if false {
|
|
goto yystate9
|
|
}
|
|
if false {
|
|
goto yystate20
|
|
}
|
|
if false {
|
|
goto yystate25
|
|
}
|
|
if false {
|
|
goto yystate28
|
|
}
|
|
if false {
|
|
goto yystate36
|
|
}
|
|
if false {
|
|
goto yystate40
|
|
}
|
|
if false {
|
|
goto yystate43
|
|
}
|
|
}
|
|
|
|
// Workaround to gobble up comments that started with a HELP or TYPE
|
|
// prefix. We just consume all characters until we reach a newline.
|
|
// This saves us from adding disproportionate complexity to the parser.
|
|
if l.state == sComment {
|
|
return l.consumeComment()
|
|
}
|
|
return tInvalid
|
|
}
|
|
|
|
func (l *promlexer) consumeComment() token {
|
|
for c := l.cur(); ; c = l.next() {
|
|
switch c {
|
|
case 0:
|
|
return tEOF
|
|
case '\n':
|
|
l.state = sInit
|
|
return tComment
|
|
}
|
|
}
|
|
}
|