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Better bounds checks for search

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Fixes #1217
This commit is contained in:
Zachary Yedidia 2018-10-14 17:58:44 -04:00
parent de35d00ba7
commit e071a4f8e2
1 changed files with 24 additions and 0 deletions
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24
cmd/micro/search.go
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@ -98,11 +98,23 @@ func HandleSearchEvent(event tcell.Event, v *View) {
}
func searchDown(r *regexp.Regexp, v *View, start, end Loc) bool {
if start.Y >= v.Buf.NumLines {
start.Y = v.Buf.NumLines - 1
}
if start.Y < 0 {
start.Y = 0
}
for i := start.Y; i <= end.Y; i++ {
var l []byte
var charPos int
if i == start.Y {
runes := []rune(string(v.Buf.lines[i].data))
if start.X >= len(runes) {
start.X = len(runes) - 1
}
if start.X < 0 {
start.X = 0
}
l = []byte(string(runes[start.X:]))
charPos = start.X
@ -129,10 +141,22 @@ func searchDown(r *regexp.Regexp, v *View, start, end Loc) bool {
}
func searchUp(r *regexp.Regexp, v *View, start, end Loc) bool {
if start.Y >= v.Buf.NumLines {
start.Y = v.Buf.NumLines - 1
}
if start.Y < 0 {
start.Y = 0
}
for i := start.Y; i >= end.Y; i-- {
var l []byte
if i == start.Y {
runes := []rune(string(v.Buf.lines[i].data))
if start.X >= len(runes) {
start.X = len(runes) - 1
}
if start.X < 0 {
start.X = 0
}
l = []byte(string(runes[:start.X]))
if strings.Contains(r.String(), "$") && start.X != Count(string(l)) {