53 lines
920 B
Go
53 lines
920 B
Go
package textfmt
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import "strings"
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func getWords(text string) []string {
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var words []string
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raw := strings.Split(text, " ")
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for _, r := range raw {
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if r == "" {
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continue
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}
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words = append(words, r)
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}
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return words
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}
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func wrap(text string, width, firstIndent, restIndent int) string {
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var (
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lines []string
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currentLine []string
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lineLen int
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)
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words := getWords(text)
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for _, w := range words {
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if len(currentLine) == 0 {
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currentLine = []string{w}
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lineLen = len(w)
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continue
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}
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maxw := width - restIndent
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if len(lines) == 0 {
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maxw = width - firstIndent
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}
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if lineLen+1+len(w) > maxw {
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lines = append(lines, strings.Join(currentLine, " "))
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currentLine = []string{w}
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lineLen = len(w)
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continue
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}
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currentLine = append(currentLine, w)
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lineLen += 1 + len(w)
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}
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lines = append(lines, strings.Join(currentLine, " "))
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return strings.Join(lines, "\n")
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}
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