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prometheus/rules/lexer.l.go
Julius Volz 64b0ade171 Swap rules lexer for much faster one. 
This swaps github.com/kivikakk/golex for github.com/cznic/golex.

The old lexer would have taken 3.5 years to load a set of 5000 test rules
(quadratic time complexity for input length), whereas this one takes only 32ms.
Furthermore, since the new lexer is embedded differently, this gets rid of the
global parser variables and makes the rule loader fully reentrant without a
lock.
2013-07-11 19:35:29 +02:00

1234 lines
23 KiB
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package rules
import (
"fmt"
"strconv"
"strings"
clientmodel "github.com/prometheus/client_golang/model"
)
func (lexer *RulesLexer) Lex(lval *yySymType) int {
// Internal lexer states.
const (
S_INITIAL = iota
S_COMMENTS
)
// We simulate multiple start symbols for closely-related grammars via dummy tokens. See
// http://www.gnu.org/software/bison/manual/html_node/Multiple-start_002dsymbols.html
// Reason: we want to be able to parse lists of named rules as well as single expressions.
if lexer.startToken != 0 {
startToken := lexer.startToken
lexer.startToken = 0
return startToken
}
c := lexer.current
currentState := 0
if lexer.empty {
c, lexer.empty = lexer.getChar(), false
}
yystate0:
lexer.buf = lexer.buf[:0] // The code before the first rule executed before every scan cycle (rule #0 / state 0 action)
switch yyt := currentState; yyt {
default:
panic(fmt.Errorf(`invalid start condition %d`, yyt))
case 0: // start condition: INITIAL
goto yystart1
case 1: // start condition: S_COMMENTS
goto yystart97
}
goto yystate1 // silence unused label error
yystate1:
c = lexer.getChar()
yystart1:
switch {
default:
goto yyabort
case c == '!':
goto yystate3
case c == '"':
goto yystate5
case c == '%' || c == '*':
goto yystate8
case c == '(' || c == ')' || c == ',' || c == '[' || c == ']' || c == '{' || c == '}':
goto yystate12
case c == '+':
goto yystate13
case c == '-':
goto yystate14
case c == '/':
goto yystate17
case c == ':' || c == 'D' || c == 'E' || c == 'G' || c == 'H' || c >= 'J' && c <= 'L' || c == 'N' || c == 'Q' || c == 'R' || c >= 'T' && c <= 'V' || c >= 'X' && c <= 'Z' || c == '_' || c == 'd' || c == 'e' || c == 'g' || c == 'h' || c >= 'j' && c <= 'l' || c == 'n' || c == 'q' || c == 'r' || c >= 't' && c <= 'v' || c >= 'x' && c <= 'z':
goto yystate23
case c == '<' || c == '>':
goto yystate24
case c == '=':
goto yystate25
case c == 'A':
goto yystate26
case c == 'B':
goto yystate35
case c == 'C':
goto yystate37
case c == 'F':
goto yystate41
case c == 'I':
goto yystate44
case c == 'M':
goto yystate46
case c == 'O':
goto yystate49
case c == 'P':
goto yystate50
case c == 'S':
goto yystate59
case c == 'W':
goto yystate61
case c == '\'':
goto yystate9
case c == '\t' || c == '\n' || c == '\r' || c == ' ':
goto yystate2
case c == 'a':
goto yystate65
case c == 'b':
goto yystate72
case c == 'c':
goto yystate73
case c == 'f':
goto yystate77
case c == 'i':
goto yystate79
case c == 'm':
goto yystate80
case c == 'o':
goto yystate83
case c == 'p':
goto yystate84
case c == 's':
goto yystate92
case c == 'w':
goto yystate94
case c >= '0' && c <= '9':
goto yystate21
}
yystate2:
c = lexer.getChar()
goto yyrule23
yystate3:
c = lexer.getChar()
switch {
default:
goto yyabort
case c == '=':
goto yystate4
}
yystate4:
c = lexer.getChar()
goto yyrule14
yystate5:
c = lexer.getChar()
switch {
default:
goto yyabort
case c == '"':
goto yystate6
case c == '\\':
goto yystate7
case c >= '\x01' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
goto yystate5
}
yystate6:
c = lexer.getChar()
goto yyrule20
yystate7:
c = lexer.getChar()
switch {
default:
goto yyabort
case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
goto yystate5
}
yystate8:
c = lexer.getChar()
goto yyrule16
yystate9:
c = lexer.getChar()
switch {
default:
goto yyabort
case c == '\'':
goto yystate10
case c == '\\':
goto yystate11
case c >= '\x01' && c <= '&' || c >= '(' && c <= '[' || c >= ']' && c <= 'ÿ':
goto yystate9
}
yystate10:
c = lexer.getChar()
goto yyrule21
yystate11:
c = lexer.getChar()
switch {
default:
goto yyabort
case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
goto yystate9
}
yystate12:
c = lexer.getChar()
goto yyrule22
yystate13:
c = lexer.getChar()
goto yyrule15
yystate14:
c = lexer.getChar()
switch {
default:
goto yyrule15
case c >= '0' && c <= '9':
goto yystate15
}
yystate15:
c = lexer.getChar()
switch {
default:
goto yyrule19
case c == '.':
goto yystate16
case c >= '0' && c <= '9':
goto yystate15
}
yystate16:
c = lexer.getChar()
switch {
default:
goto yyrule19
case c >= '0' && c <= '9':
goto yystate16
}
yystate17:
c = lexer.getChar()
switch {
default:
goto yyrule16
case c == '*':
goto yystate18
case c == '/':
goto yystate19
}
yystate18:
c = lexer.getChar()
goto yyrule1
yystate19:
c = lexer.getChar()
switch {
default:
goto yyabort
case c == '\n':
goto yystate20
case c >= '\x01' && c <= '\t' || c == '\v' || c == '\f' || c >= '\x0e' && c <= 'ÿ':
goto yystate19
}
yystate20:
c = lexer.getChar()
goto yyrule4
yystate21:
c = lexer.getChar()
switch {
default:
goto yyrule19
case c == '.':
goto yystate16
case c == 'd' || c == 'h' || c == 'm' || c == 's' || c == 'w' || c == 'y':
goto yystate22
case c >= '0' && c <= '9':
goto yystate21
}
yystate22:
c = lexer.getChar()
goto yyrule17
yystate23:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate24:
c = lexer.getChar()
switch {
default:
goto yyrule13
case c == '=':
goto yystate4
}
yystate25:
c = lexer.getChar()
switch {
default:
goto yyrule22
case c == '=':
goto yystate4
}
yystate26:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'L':
goto yystate27
case c == 'N':
goto yystate31
case c == 'V':
goto yystate33
case c >= '0' && c <= ':' || c >= 'A' && c <= 'K' || c == 'M' || c >= 'O' && c <= 'U' || c >= 'W' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate27:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'E':
goto yystate28
case c >= '0' && c <= ':' || c >= 'A' && c <= 'D' || c >= 'F' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate28:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'R':
goto yystate29
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Q' || c >= 'S' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate29:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'T':
goto yystate30
case c >= '0' && c <= ':' || c >= 'A' && c <= 'S' || c >= 'U' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate30:
c = lexer.getChar()
switch {
default:
goto yyrule5
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate31:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'D':
goto yystate32
case c >= '0' && c <= ':' || c >= 'A' && c <= 'C' || c >= 'E' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate32:
c = lexer.getChar()
switch {
default:
goto yyrule13
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate33:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'G':
goto yystate34
case c >= '0' && c <= ':' || c >= 'A' && c <= 'F' || c >= 'H' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate34:
c = lexer.getChar()
switch {
default:
goto yyrule11
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate35:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'Y':
goto yystate36
case c >= '0' && c <= ':' || c >= 'A' && c <= 'X' || c == 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate36:
c = lexer.getChar()
switch {
default:
goto yyrule10
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate37:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'O':
goto yystate38
case c >= '0' && c <= ':' || c >= 'A' && c <= 'N' || c >= 'P' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate38:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'U':
goto yystate39
case c >= '0' && c <= ':' || c >= 'A' && c <= 'T' || c >= 'V' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate39:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'N':
goto yystate40
case c >= '0' && c <= ':' || c >= 'A' && c <= 'M' || c >= 'O' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate40:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'T':
goto yystate34
case c >= '0' && c <= ':' || c >= 'A' && c <= 'S' || c >= 'U' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate41:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'O':
goto yystate42
case c >= '0' && c <= ':' || c >= 'A' && c <= 'N' || c >= 'P' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate42:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'R':
goto yystate43
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Q' || c >= 'S' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate43:
c = lexer.getChar()
switch {
default:
goto yyrule7
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate44:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'F':
goto yystate45
case c >= '0' && c <= ':' || c >= 'A' && c <= 'E' || c >= 'G' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate45:
c = lexer.getChar()
switch {
default:
goto yyrule6
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate46:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'A':
goto yystate47
case c == 'I':
goto yystate48
case c >= '0' && c <= ':' || c >= 'B' && c <= 'H' || c >= 'J' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate47:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'X':
goto yystate34
case c >= '0' && c <= ':' || c >= 'A' && c <= 'W' || c == 'Y' || c == 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate48:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'N':
goto yystate34
case c >= '0' && c <= ':' || c >= 'A' && c <= 'M' || c >= 'O' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate49:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'R':
goto yystate32
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Q' || c >= 'S' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate50:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'E':
goto yystate51
case c >= '0' && c <= ':' || c >= 'A' && c <= 'D' || c >= 'F' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate51:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'R':
goto yystate52
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Q' || c >= 'S' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate52:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'M':
goto yystate53
case c >= '0' && c <= ':' || c >= 'A' && c <= 'L' || c >= 'N' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate53:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'A':
goto yystate54
case c >= '0' && c <= ':' || c >= 'B' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate54:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'N':
goto yystate55
case c >= '0' && c <= ':' || c >= 'A' && c <= 'M' || c >= 'O' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate55:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'E':
goto yystate56
case c >= '0' && c <= ':' || c >= 'A' && c <= 'D' || c >= 'F' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate56:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'N':
goto yystate57
case c >= '0' && c <= ':' || c >= 'A' && c <= 'M' || c >= 'O' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate57:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'T':
goto yystate58
case c >= '0' && c <= ':' || c >= 'A' && c <= 'S' || c >= 'U' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate58:
c = lexer.getChar()
switch {
default:
goto yyrule9
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate59:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'U':
goto yystate60
case c >= '0' && c <= ':' || c >= 'A' && c <= 'T' || c >= 'V' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate60:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'M':
goto yystate34
case c >= '0' && c <= ':' || c >= 'A' && c <= 'L' || c >= 'N' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate61:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'I':
goto yystate62
case c >= '0' && c <= ':' || c >= 'A' && c <= 'H' || c >= 'J' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate62:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'T':
goto yystate63
case c >= '0' && c <= ':' || c >= 'A' && c <= 'S' || c >= 'U' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate63:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'H':
goto yystate64
case c >= '0' && c <= ':' || c >= 'A' && c <= 'G' || c >= 'I' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate64:
c = lexer.getChar()
switch {
default:
goto yyrule8
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate65:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'l':
goto yystate66
case c == 'n':
goto yystate69
case c == 'v':
goto yystate70
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'k' || c == 'm' || c >= 'o' && c <= 'u' || c >= 'w' && c <= 'z':
goto yystate23
}
yystate66:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'e':
goto yystate67
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'd' || c >= 'f' && c <= 'z':
goto yystate23
}
yystate67:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'r':
goto yystate68
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'q' || c >= 's' && c <= 'z':
goto yystate23
}
yystate68:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 't':
goto yystate30
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 's' || c >= 'u' && c <= 'z':
goto yystate23
}
yystate69:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'd':
goto yystate32
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'c' || c >= 'e' && c <= 'z':
goto yystate23
}
yystate70:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'g':
goto yystate71
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'f' || c >= 'h' && c <= 'z':
goto yystate23
}
yystate71:
c = lexer.getChar()
switch {
default:
goto yyrule12
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate23
}
yystate72:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'y':
goto yystate36
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'x' || c == 'z':
goto yystate23
}
yystate73:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'o':
goto yystate74
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'n' || c >= 'p' && c <= 'z':
goto yystate23
}
yystate74:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'u':
goto yystate75
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 't' || c >= 'v' && c <= 'z':
goto yystate23
}
yystate75:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'n':
goto yystate76
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'm' || c >= 'o' && c <= 'z':
goto yystate23
}
yystate76:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 't':
goto yystate71
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 's' || c >= 'u' && c <= 'z':
goto yystate23
}
yystate77:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'o':
goto yystate78
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'n' || c >= 'p' && c <= 'z':
goto yystate23
}
yystate78:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'r':
goto yystate43
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'q' || c >= 's' && c <= 'z':
goto yystate23
}
yystate79:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'f':
goto yystate45
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'e' || c >= 'g' && c <= 'z':
goto yystate23
}
yystate80:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'a':
goto yystate81
case c == 'i':
goto yystate82
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'b' && c <= 'h' || c >= 'j' && c <= 'z':
goto yystate23
}
yystate81:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'x':
goto yystate71
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'w' || c == 'y' || c == 'z':
goto yystate23
}
yystate82:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'n':
goto yystate71
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'm' || c >= 'o' && c <= 'z':
goto yystate23
}
yystate83:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'r':
goto yystate32
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'q' || c >= 's' && c <= 'z':
goto yystate23
}
yystate84:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'e':
goto yystate85
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'd' || c >= 'f' && c <= 'z':
goto yystate23
}
yystate85:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'r':
goto yystate86
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'q' || c >= 's' && c <= 'z':
goto yystate23
}
yystate86:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'm':
goto yystate87
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'l' || c >= 'n' && c <= 'z':
goto yystate23
}
yystate87:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'a':
goto yystate88
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'b' && c <= 'z':
goto yystate23
}
yystate88:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'n':
goto yystate89
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'm' || c >= 'o' && c <= 'z':
goto yystate23
}
yystate89:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'e':
goto yystate90
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'd' || c >= 'f' && c <= 'z':
goto yystate23
}
yystate90:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'n':
goto yystate91
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'm' || c >= 'o' && c <= 'z':
goto yystate23
}
yystate91:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 't':
goto yystate58
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 's' || c >= 'u' && c <= 'z':
goto yystate23
}
yystate92:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'u':
goto yystate93
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 't' || c >= 'v' && c <= 'z':
goto yystate23
}
yystate93:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'm':
goto yystate71
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'l' || c >= 'n' && c <= 'z':
goto yystate23
}
yystate94:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'i':
goto yystate95
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'h' || c >= 'j' && c <= 'z':
goto yystate23
}
yystate95:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 't':
goto yystate96
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 's' || c >= 'u' && c <= 'z':
goto yystate23
}
yystate96:
c = lexer.getChar()
switch {
default:
goto yyrule18
case c == 'h':
goto yystate64
case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'g' || c >= 'i' && c <= 'z':
goto yystate23
}
goto yystate97 // silence unused label error
yystate97:
c = lexer.getChar()
yystart97:
switch {
default:
goto yyabort
case c == '*':
goto yystate99
case c >= '\x01' && c <= ')' || c >= '+' && c <= 'ÿ':
goto yystate98
}
yystate98:
c = lexer.getChar()
goto yyrule3
yystate99:
c = lexer.getChar()
switch {
default:
goto yyrule3
case c == '/':
goto yystate100
}
yystate100:
c = lexer.getChar()
goto yyrule2
yyrule1: // "/*"
{
currentState = S_COMMENTS
goto yystate0
}
yyrule2: // "*/"
{
currentState = S_INITIAL
goto yystate0
}
yyrule3: // .|\n
{
/* ignore chars within multi-line comments */
goto yystate0
}
yyrule4: // \/\/[^\r\n]*\n
{
/* gobble up one-line comments */
goto yystate0
}
yyrule5: // ALERT|alert
{
return ALERT
}
yyrule6: // IF|if
{
return IF
}
yyrule7: // FOR|for
{
return FOR
}
yyrule8: // WITH|with
{
return WITH
}
yyrule9: // PERMANENT|permanent
{
return PERMANENT
}
yyrule10: // BY|by
{
return GROUP_OP
}
yyrule11: // AVG|SUM|MAX|MIN|COUNT
{
lval.str = lexer.token(); return AGGR_OP
goto yystate0
}
yyrule12: // avg|sum|max|min|count
{
lval.str = strings.ToUpper(lexer.token()); return AGGR_OP
goto yystate0
}
yyrule13: // \<|>|AND|OR|and|or
{
lval.str = strings.ToUpper(lexer.token()); return CMP_OP
goto yystate0
}
yyrule14: // ==|!=|>=|<=
{
lval.str = lexer.token(); return CMP_OP
goto yystate0
}
yyrule15: // [+\-]
{
lval.str = lexer.token(); return ADDITIVE_OP
goto yystate0
}
yyrule16: // [*/%]
{
lval.str = lexer.token(); return MULT_OP
goto yystate0
}
yyrule17: // {D}+{U}
{
lval.str = lexer.token(); return DURATION
goto yystate0
}
yyrule18: // {L}({L}|{D})*
{
lval.str = lexer.token(); return IDENTIFIER
goto yystate0
}
yyrule19: // \-?{D}+(\.{D}*)?
{
num, err := strconv.ParseFloat(lexer.token(), 64);
if (err != nil && err.(*strconv.NumError).Err == strconv.ErrSyntax) {
panic("Invalid float")
}
lval.num = clientmodel.SampleValue(num)
return NUMBER
}
yyrule20: // \"(\\.|[^\\"])*\"
{
lval.str = lexer.token()[1:len(lexer.token()) - 1]; return STRING
goto yystate0
}
yyrule21: // \'(\\.|[^\\'])*\'
{
lval.str = lexer.token()[1:len(lexer.token()) - 1]; return STRING
goto yystate0
}
yyrule22: // [{}\[\]()=,]
{
return int(lexer.buf[0])
}
yyrule23: // [\t\n\r ]
{
/* gobble up any whitespace */
goto yystate0
}
panic("unreachable")
goto yyabort // silence unused label error
yyabort: // no lexem recognized
lexer.empty = true
return int(c)
}
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