109 lines
1.5 KiB
Go
109 lines
1.5 KiB
Go
package textfmt
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import (
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"fmt"
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"io"
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"strings"
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)
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type writer interface {
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write(...any)
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error() error
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setErr(error)
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}
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type ttyWriter struct {
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w io.Writer
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internal bool
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err error
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}
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type roffWriter struct {
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w io.Writer
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internal bool
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err error
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}
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func (w *ttyWriter) write(a ...any) {
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for _, ai := range a {
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if w.err != nil {
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return
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}
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s := fmt.Sprint(ai)
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r := []rune(s)
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if !w.internal {
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for i := range r {
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if r[i] == '\u00a0' {
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r[i] = ' '
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}
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}
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}
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if _, err := w.w.Write([]byte(string(r))); err != nil {
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w.err = err
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}
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}
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}
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func (w *ttyWriter) error() error {
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return w.err
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}
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func (w *ttyWriter) setErr(err error) {
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w.err = err
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}
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func (w *roffWriter) write(a ...any) {
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for _, ai := range a {
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if w.err != nil {
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return
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}
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var rr []rune
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s := fmt.Sprint(ai)
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r := []rune(s)
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if w.internal {
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rr = r
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} else {
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for i := range r {
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if r[i] == '\u00a0' {
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rr = append(rr, []rune("\\~")...)
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continue
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}
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rr = append(rr, r[i])
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}
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}
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if _, err := w.w.Write([]byte(string(rr))); err != nil {
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w.err = err
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}
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}
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}
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func (w *roffWriter) error() error {
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return w.err
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}
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func (w *roffWriter) setErr(err error) {
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w.err = err
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}
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func writeLines(w writer, txt string, indentFirst, indentRest int) {
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lines := strings.Split(txt, "\n")
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for i, l := range lines {
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if i > 0 {
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w.write("\n")
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}
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indent := indentFirst
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if i > 0 {
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indent = indentRest
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}
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w.write(timesn(" ", indent))
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w.write(l)
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}
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}
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