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Allow specifying initial capacity when splitting lines

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This commit is contained in:
Kovid Goyal
2023-02-09 12:59:40 +05:30
parent 44f46afb2a
commit 8d0452d375
1 changed files with 6 additions and 2 deletions
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8
tools/utils/strings.go
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@@ -54,8 +54,12 @@ func (self *ScanLines) Text() string {
return self.scanner.Text() return self.scanner.Text()
} }
func Splitlines(x string) []string { func Splitlines(x string, expected_number_of_lines ...int) (ans []string) {
ans := make([]string, 0, 8) if len(expected_number_of_lines) > 0 {
ans = make([]string, 0, expected_number_of_lines[0])
} else {
ans = make([]string, 0, 8)
}
scanner := bufio.NewScanner(strings.NewReader(x)) scanner := bufio.NewScanner(strings.NewReader(x))
for scanner.Scan() { for scanner.Scan() {
ans = append(ans, scanner.Text()) ans = append(ans, scanner.Text())