Fix handling of escapes within fieldset (#3003)

Line protocol does not require or allow escaping of backslash, the only
requirement for a byte to be escaped is if it is an escapable char and
preceeded immediately by a slash.
This commit is contained in:
Daniel Nelson 2017-07-10 19:05:18 -07:00 committed by GitHub
parent 05309855e3
commit 4780073ba1
2 changed files with 9 additions and 25 deletions

View File

@ -98,7 +98,7 @@ func indexUnescapedByte(buf []byte, b byte) int {
break
}
keyi += i
if countBackslashes(buf, keyi-1)%2 == 0 {
if buf[keyi-1] != '\\' {
break
} else {
keyi++
@ -107,24 +107,6 @@ func indexUnescapedByte(buf []byte, b byte) int {
return keyi
}
// countBackslashes counts the number of preceding backslashes starting at
// the 'start' index.
func countBackslashes(buf []byte, index int) int {
var count int
for {
if index < 0 {
return count
}
if buf[index] == '\\' {
count++
index--
} else {
break
}
}
return count
}
type metric struct {
name []byte
tags []byte

View File

@ -255,6 +255,8 @@ func TestNewMetric_Fields(t *testing.T) {
"bool": true,
"false": false,
"string": "test",
"quote_string": `x"y`,
"backslash_quote_string": `x\"y`,
}
m, err := New("cpu", tags, fields, now)
assert.NoError(t, err)
@ -367,7 +369,7 @@ func TestIndexUnescapedByte(t *testing.T) {
{
in: []byte(`foo\\bar`),
b: 'b',
expected: 5,
expected: -1,
},
{
in: []byte(`foobar`),