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50 lines
1005 B
Go
50 lines
1005 B
Go
package style
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import (
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"strconv"
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"strings"
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)
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const minTokens = 1
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const halfTokens = 2
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const maxTokens = 4
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// parsePadding parses 1 - 4 integers from a string and returns them in a top,
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// right, bottom, left order for use in the lipgloss.Padding() method.
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func parsePadding(s string) (int, int, int, int) {
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var ints [maxTokens]int
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tokens := strings.Split(s, " ")
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if len(tokens) > maxTokens {
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return 0, 0, 0, 0
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}
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// All tokens must be an integer
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for i, token := range tokens {
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parsed, err := strconv.Atoi(token)
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if err != nil {
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return 0, 0, 0, 0
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}
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ints[i] = parsed
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}
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if len(tokens) == minTokens {
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return ints[0], ints[0], ints[0], ints[0]
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}
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if len(tokens) == halfTokens {
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return ints[0], ints[1], ints[0], ints[1]
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}
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if len(tokens) == maxTokens {
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return ints[0], ints[1], ints[2], ints[3]
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}
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return 0, 0, 0, 0
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}
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// parseMargin is an alias for parsePadding since they involve the same logic
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// to parse integers to the same format.
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var parseMargin = parsePadding
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