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Don't drop buffered input data in findOffset() (#1392)

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Tim Cuthbertson 2018-09-27 03:35:44 +10:00 committed by Junegunn Choi
parent 49d04374a4
commit 70a92a858a
1 changed files with 5 additions and 3 deletions
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8
src/tui/light.go
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@ -27,7 +27,7 @@ const (
const consoleDevice string = "/dev/tty"
var offsetRegexp *regexp.Regexp = regexp.MustCompile("\x1b\\[([0-9]+);([0-9]+)R")
var offsetRegexp *regexp.Regexp = regexp.MustCompile("(.*)\x1b\\[([0-9]+);([0-9]+)R")
func openTtyIn() *os.File {
in, err := os.OpenFile(consoleDevice, syscall.O_RDONLY, 0)
@ -154,8 +154,10 @@ func (r *LightRenderer) findOffset() (row int, col int) {
for tries := 0; tries < offsetPollTries; tries++ {
bytes = r.getBytesInternal(bytes, tries > 0)
offsets := offsetRegexp.FindSubmatch(bytes)
if len(offsets) > 2 {
return atoi(string(offsets[1]), 0) - 1, atoi(string(offsets[2]), 0) - 1
if len(offsets) > 3 {
// add anything we skipped over to the input buffer
r.buffer = append(r.buffer, offsets[1]...)
return atoi(string(offsets[2]), 0) - 1, atoi(string(offsets[3]), 0) - 1
}
}
return -1, -1