prometheus/pkg/textparse/lex.l.go

397 lines
7.0 KiB
Go

// CAUTION: Generated file - DO NOT EDIT.
// Copyright 2017 The Prometheus Authors
// 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 textparse
import (
"fmt"
"math"
"strconv"
)
// Lex is called by the parser generated by "go tool yacc" to obtain each
// token. The method is opened before the matching rules block and closed at
// the end of the file.
func (l *lexer) Lex() int {
const (
lstateInit = iota
lstateValue
lstateLabels
lstateLName
lstateLValue
)
s := lstateInit
if l.i >= len(l.b) {
return eof
}
c := l.b[l.i]
l.offsets = l.offsets[:0]
yystate0:
switch yyt := s; yyt {
default:
panic(fmt.Errorf(`invalid start condition %d`, yyt))
case 0: // start condition: INITIAL
goto yystart1
case 1: // start condition: lstateValue
goto yystart8
case 2: // start condition: lstateLabels
goto yystart14
case 3: // start condition: lstateLName
goto yystart18
case 4: // start condition: lstateLValue
goto yystart21
}
goto yystate0 // silence unused label error
goto yystate1 // silence unused label error
yystate1:
c = l.next()
yystart1:
switch {
default:
goto yyabort
case c == '#':
goto yystate4
case c == '\t' || c == '\n' || c == '\r' || c == ' ':
goto yystate3
case c == '\x00':
goto yystate2
case c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate6
}
yystate2:
c = l.next()
goto yyrule1
yystate3:
c = l.next()
switch {
default:
goto yyrule3
case c == '\t' || c == '\n' || c == '\r' || c == ' ':
goto yystate3
}
yystate4:
c = l.next()
switch {
default:
goto yyabort
case c == '\n':
goto yystate5
case c >= '\x01' && c <= '\t' || c == '\v' || c == '\f' || c >= '\x0e' && c <= 'ÿ':
goto yystate4
}
yystate5:
c = l.next()
goto yyrule2
yystate6:
c = l.next()
switch {
default:
goto yyrule5
case c == '{':
goto yystate7
case c >= '0' && c <= '9' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate6
}
yystate7:
c = l.next()
goto yyrule4
goto yystate8 // silence unused label error
yystate8:
c = l.next()
yystart8:
switch {
default:
goto yyabort
case c == 'N':
goto yystate11
case c == '\t' || c == ' ':
goto yystate10
case c >= '\x01' && c <= '\b' || c == '\v' || c == '\f' || c >= '\x0e' && c <= '\x1f' || c >= '!' && c <= 'M' || c >= 'O' && c <= 'ÿ':
goto yystate9
}
yystate9:
c = l.next()
switch {
default:
goto yyrule14
case c >= '\x01' && c <= '\b' || c == '\v' || c == '\f' || c >= '\x0e' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
goto yystate9
}
yystate10:
c = l.next()
switch {
default:
goto yyrule12
case c == '\t' || c == ' ':
goto yystate10
}
yystate11:
c = l.next()
switch {
default:
goto yyrule14
case c == 'a':
goto yystate12
case c >= '\x01' && c <= '\b' || c == '\v' || c == '\f' || c >= '\x0e' && c <= '\x1f' || c >= '!' && c <= '`' || c >= 'b' && c <= 'ÿ':
goto yystate9
}
yystate12:
c = l.next()
switch {
default:
goto yyrule14
case c == 'N':
goto yystate13
case c >= '\x01' && c <= '\b' || c == '\v' || c == '\f' || c >= '\x0e' && c <= '\x1f' || c >= '!' && c <= 'M' || c >= 'O' && c <= 'ÿ':
goto yystate9
}
yystate13:
c = l.next()
switch {
default:
goto yyrule13
case c >= '\x01' && c <= '\b' || c == '\v' || c == '\f' || c >= '\x0e' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
goto yystate9
}
goto yystate14 // silence unused label error
yystate14:
c = l.next()
yystart14:
switch {
default:
goto yyrule8
case c == ',':
goto yystate16
case c == '\t' || c == ' ':
goto yystate15
case c == '}':
goto yystate17
}
yystate15:
c = l.next()
switch {
default:
goto yyrule6
case c == '\t' || c == ' ':
goto yystate15
}
yystate16:
c = l.next()
goto yyrule8
yystate17:
c = l.next()
goto yyrule7
goto yystate18 // silence unused label error
yystate18:
c = l.next()
yystart18:
switch {
default:
goto yyabort
case c == ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate19
}
yystate19:
c = l.next()
switch {
default:
goto yyabort
case c == '=':
goto yystate20
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate19
}
yystate20:
c = l.next()
goto yyrule9
goto yystate21 // silence unused label error
yystate21:
c = l.next()
yystart21:
switch {
default:
goto yyabort
case c == '"':
goto yystate22
case c == '\'':
goto yystate25
}
yystate22:
c = l.next()
switch {
default:
goto yyabort
case c == '"':
goto yystate23
case c == '\\':
goto yystate24
case c >= '\x01' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
goto yystate22
}
yystate23:
c = l.next()
goto yyrule10
yystate24:
c = l.next()
switch {
default:
goto yyabort
case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
goto yystate22
}
yystate25:
c = l.next()
switch {
default:
goto yyabort
case c == '\'':
goto yystate26
case c == '\\':
goto yystate27
case c >= '\x01' && c <= '&' || c >= '(' && c <= '[' || c >= ']' && c <= 'ÿ':
goto yystate25
}
yystate26:
c = l.next()
goto yyrule11
yystate27:
c = l.next()
switch {
default:
goto yyabort
case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
goto yystate25
}
yyrule1: // \0
{
return eof
}
yyrule2: // #[^\r\n]*\n
{
l.mstart = l.i
goto yystate0
}
yyrule3: // [\r\n \t]+
{
l.mstart = l.i
goto yystate0
}
yyrule4: // {L}({L}|{D})*\{
{
s = lstateLabels
l.offsets = append(l.offsets, l.i-1)
goto yystate0
}
yyrule5: // {L}({L}|{D})*
{
s = lstateValue
l.mend = l.i
l.offsets = append(l.offsets, l.i)
goto yystate0
}
yyrule6: // [ \t]+
goto yystate0
yyrule7: // \}
{
s = lstateValue
l.mend = l.i
goto yystate0
}
yyrule8: // ,?
{
s = lstateLName
l.offsets = append(l.offsets, l.i)
goto yystate0
}
yyrule9: // {M}({M}|{D})*=
{
s = lstateLValue
l.offsets = append(l.offsets, l.i-1)
goto yystate0
}
yyrule10: // \"(\\.|[^\\"])*\"
{
s = lstateLabels
l.offsets = append(l.offsets, l.i-1)
goto yystate0
}
yyrule11: // \'(\\.|[^\\'])*\'
{
s = lstateLabels
l.offsets = append(l.offsets, l.i-1)
goto yystate0
}
yyrule12: // [ \t]+
{
l.vstart = l.i
goto yystate0
}
yyrule13: // (NaN)
{
l.val = math.NaN()
return 1
}
yyrule14: // [^\n \t\r]+
{
// We don't parse strictly correct floats as the conversion
// repeats the effort anyway.
l.val, l.err = strconv.ParseFloat(yoloString(l.b[l.vstart:l.i]), 64)
if l.err != nil {
return -1
}
return 1
}
panic("unreachable")
goto yyabort // silence unused label error
yyabort: // no lexem recognized
return -1
}