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0877680761
This also removes the now obsolete scalar count() function and corrects the
expressions test naming (broken in
2202cd71c9 (L6R59))
so that the expression tests will actually run.
71 lines
2.6 KiB
Plaintext
71 lines
2.6 KiB
Plaintext
/* Copyright 2013 Prometheus Team
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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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%{
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package rules
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import (
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"github.com/prometheus/prometheus/model"
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"strconv"
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"strings"
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)
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%}
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D [0-9]
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L [a-zA-Z_:]
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U [smhdwy]
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%x S_COMMENTS
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%%
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. { yypos++; REJECT }
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\n { yyline++; yypos = 1; REJECT }
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"/*" { BEGIN(S_COMMENTS) }
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<S_COMMENTS>"*/" { BEGIN(0) }
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<S_COMMENTS>. { /* ignore chars within multi-line comments */ }
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\/\/[^\r\n]*\n { /* gobble up one-line comments */ }
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ALERT|alert { return ALERT }
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IF|if { return IF }
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FOR|for { return FOR }
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WITH|with { return WITH }
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PERMANENT|permanent { return PERMANENT }
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BY|by { return GROUP_OP }
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AVG|SUM|MAX|MIN|COUNT { yylval.str = yytext; return AGGR_OP }
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avg|sum|max|min|count { yylval.str = strings.ToUpper(yytext); return AGGR_OP }
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\<|>|AND|OR|and|or { yylval.str = strings.ToUpper(yytext); return CMP_OP }
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==|!=|>=|<= { yylval.str = yytext; return CMP_OP }
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[+\-] { yylval.str = yytext; return ADDITIVE_OP }
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[*/%] { yylval.str = yytext; return MULT_OP }
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{D}+{U} { yylval.str = yytext; return DURATION }
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{L}({L}|{D})* { yylval.str = yytext; return IDENTIFIER }
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\-?{D}+(\.{D}*)? { num, err := strconv.ParseFloat(yytext, 64);
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if (err != nil && err.(*strconv.NumError).Err == strconv.ErrSyntax) {
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panic("Invalid float")
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}
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yylval.num = model.SampleValue(num)
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return NUMBER }
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\"(\\.|[^\\"])*\" { yylval.str = yytext[1:len(yytext) - 1]; return STRING }
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\'(\\.|[^\\'])*\' { yylval.str = yytext[1:len(yytext) - 1]; return STRING }
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[{}\[\]()=,] { return int(yytext[0]) }
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. { /* don't print any remaining chars (whitespace) */ }
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\n { /* don't print any remaining chars (whitespace) */ }
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%%
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