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term: fix divide by 0 error on empty delimiter

pull/4107/head
Major Taylor 2020-03-23 15:05:08 -04:00 committed by GitHub
parent 2e29e09b1b
commit 5c9cbae10d
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1 changed files with 3 additions and 2 deletions
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5
vlib/term/term.v
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@ -32,9 +32,10 @@ pub fn fail_message(s string) string {
// h_divider returns a horizontal divider line with a dynamic width,
// that depends on the current terminal settings.
// If an empty string is passed in, print enough spaces to make a new line
pub fn h_divider(divider string) string {
cols,_ := get_terminal_size()
result := divider.repeat(1 + (cols / divider.len))
result := if divider.len > 0 { divider.repeat(1 + (cols / divider.len)) } else { " ".repeat(1 + cols) }
return result[0..cols]
}
@ -49,7 +50,7 @@ pub fn header(text, divider string) string {
tlimit := if cols > text.len + 2 + 2 * divider.len { text.len } else { cols - 3 - 2 * divider.len }
tlimit_alligned := if (tlimit % 2) != (cols % 2) { tlimit + 1 } else { tlimit }
tstart := (cols - tlimit_alligned) / 2
ln := divider.repeat(1 + cols / divider.len)[0..cols]
ln := if divider.len > 0 { divider.repeat(1 + cols / divider.len)[0..cols] } else { " ".repeat(1 + cols) }
return ln[0..tstart] + ' ' + text[0..tlimit] + ' ' + ln[tstart + tlimit + 2..cols]
}