// Format formats the text so that lines longer than a certain width get
// wrapped at word boundaries, if possible. It preserves spaces at the
// beginning of a line.
Format formats the text so that lines longer than a certain width get
wrapped at word boundaries, if possible. It preserves spaces at the
beginning of a line.
// Format formats the text so that lines longer than a certain width get // wrapped at word boundaries if possible . It preserves spaces at the // beginning of a line .
func (stt StyledText) Format(width int) StyledText {
	s := strings.Builder{}
	wordbuf := bytes.Buffer{}
	col := 0                     
	wantspace := false           
	wlen := 0                    
	markup := stt.markups != nil 
	procm := false               
	start := true                
	for _, r := range stt.text {
		if markup {
			if procMarkup(procm, r) {
				procm = !procm
				switch r {
				case '\n', ' ':
				default:
					if wlen == 0 {
						s.WriteRune(r)
					} else {
						wordbuf.WriteRune(r)
					}
					continue
				}
			} else {
				procm = false
			}
		}
		if r == ' ' {
			switch {
			case start:
				s.WriteRune(' ')
				col++
				continue
			case wlen > 0:
				newline := wlen+col+1 > width
				if wantspace {
					addSpace(&s, newline)
					if newline {
						col = 0
					} else {
						col++
					}
				}
				s.Write(wordbuf.Bytes())
				col += wlen
				wordbuf.Reset()
				wlen = 0
				wantspace = true
			}
			continue
		}
		if r == '\n' {
			if wlen > 0 {
				if wantspace {
					addSpace(&s, wlen+col+1 > width)
				}
				s.Write(wordbuf.Bytes())
				wordbuf.Reset()
				wlen = 0
			}
			s.WriteRune('\n')
			col = 0
			wantspace = false
			start = true
			continue
		}
		start = false
		wordbuf.WriteRune(r)
		wlen++
	}
	if wlen > 0 {
		if wantspace {
			addSpace(&s, wlen+col+1 > width)
		}
		s.Write(wordbuf.Bytes())
	}
	stt.text = strings.TrimRight(s.String(), " \n")
	return stt
}
func ( stt StyledText ) Format ( width int ) StyledText { s := strings . Builder { } wordbuf := bytes . Buffer { } col := 0 wantspace := false wlen := 0 markup := stt . markups != nil procm := false start := true for _ , r := range stt . text { if markup { if procMarkup ( procm , r ) { procm = ! procm switch r { case '\n' , ' ' : default : if wlen == 0 { s . WriteRune ( r ) } else { wordbuf . WriteRune ( r ) } continue } } else { procm = false } } if r == ' ' { switch { case start : s . WriteRune ( ' ' ) col ++ continue case wlen > 0 : newline := wlen + col + 1 > width if wantspace { addSpace ( & s , newline ) if newline { col = 0 } else { col ++ } } s . Write ( wordbuf . Bytes ( ) ) col += wlen wordbuf . Reset ( ) wlen = 0 wantspace = true } continue } if r == '\n' { if wlen > 0 { if wantspace { addSpace ( & s , wlen + col + 1 > width ) } s . Write ( wordbuf . Bytes ( ) ) wordbuf . Reset ( ) wlen = 0 } s . WriteRune ( '\n' ) col = 0 wantspace = false start = true continue } start = false wordbuf . WriteRune ( r ) wlen ++ } if wlen > 0 { if wantspace { addSpace ( & s , wlen + col + 1 > width ) } s . Write ( wordbuf . Bytes ( ) ) } stt . text = strings . TrimRight ( s . String ( ) , " \n " ) return stt }
Format formats the text so that lines longer than a certain width get
wrapped at word boundaries, if possible.
Format formats the text so that lines longer than a certain width get wrapped at word boundaries if possible .
// current column (without counting @r markups) // whether we expect currently space (start of a new word that is not at line start) // current word length // whether markup is activated // processing markup // whether at line start