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

This commit is contained in:
Tim Cuthbertson 2018-09-27 03:35:44 +10:00 committed by Junegunn Choi
parent 49d04374a4
commit 70a92a858a

View File

@ -27,7 +27,7 @@ const (
const consoleDevice string = "/dev/tty" 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 { func openTtyIn() *os.File {
in, err := os.OpenFile(consoleDevice, syscall.O_RDONLY, 0) 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++ { for tries := 0; tries < offsetPollTries; tries++ {
bytes = r.getBytesInternal(bytes, tries > 0) bytes = r.getBytesInternal(bytes, tries > 0)
offsets := offsetRegexp.FindSubmatch(bytes) offsets := offsetRegexp.FindSubmatch(bytes)
if len(offsets) > 2 { if len(offsets) > 3 {
return atoi(string(offsets[1]), 0) - 1, atoi(string(offsets[2]), 0) - 1 // 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 return -1, -1