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beego: template fund when the start> len(bt)

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astaxie
2014-08-05 23:52:06 +08:00
parent a3f40234ca
commit ea6982fcea
2 changed files with 6 additions and 0 deletions
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3
templatefunc.go
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@ -27,6 +27,9 @@ func Substr(s string, start, length int) string {
if start < 0 {
start = 0
}
if start > len(bt) {
start = start % len(bt)
}
var end int
if (start + length) > (len(bt) - 1) {
end = len(bt)