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add a warning when a grok pattern ends with \n (#183)

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Thibault "bui" Koechlin 2020-08-20 15:07:50 +02:00 • committed by GitHub
parent 742435f178
commit 1956f52be5
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1 changed files with 4 additions and 0 deletions
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4
pkg/parser/node.go
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@ -3,6 +3,7 @@ package parser
import (
"fmt"
"net"
"strings"
"github.com/antonmedv/expr"
@ -412,6 +413,9 @@ func (n *Node) compile(pctx *UnixParserCtx) error {
n.logger.Debugf("%s regexp: %s", n.Grok.RegexpName, n.Grok.RunTimeRegexp.Regexp.String())
valid = true
} else if n.Grok.RegexpValue != "" {
if strings.HasSuffix(n.Grok.RegexpValue, "\n") {
n.logger.Debugf("Beware, pattern ends with \\n : '%s'", n.Grok.RegexpValue)
}
//n.logger.Debugf("+ Regexp Compilation '%s'", n.Grok.RegexpValue)
n.Grok.RunTimeRegexp, err = pctx.Grok.Compile(n.Grok.RegexpValue)
if err != nil {