Move cursor with search selection

[micro.git] / cmd / micro / util.go

diff --git a/cmd/micro/util.go b/cmd/micro/util.go
index db452e062248b0f92e8f152fb298181998f0bc44..f5d77abc16c5aaedb9a2868eecc514d3e2de5454 100644 (file)
--- a/cmd/micro/util.go
+++ b/cmd/micro/util.go
@@ -140,12 +140,15 @@ func GetModTime(path string) (time.Time, bool) {
        return info.ModTime(), true
 }
 
+// StringWidth returns the width of a string where tabs count as `tabsize` width
 func StringWidth(str string) int {
        sw := runewidth.StringWidth(str)
        sw += NumOccurences(str, '\t') * (int(settings["tabsize"].(float64)) - 1)
        return sw
 }
 
+// WidthOfLargeRunes searches all the runes in a string and counts up all the widths of runes
+// that have a width larger than 1 (this also counts tabs as `tabsize` width)
 func WidthOfLargeRunes(str string) int {
        count := 0
        for _, ch := range str {
@@ -162,6 +165,8 @@ func WidthOfLargeRunes(str string) int {
        return count
 }
 
+// RunePos returns the rune index of a given byte index
+// This could cause problems if the byte index is between code points
 func runePos(p int, str string) int {
        return utf8.RuneCountInString(str[:p])
 }