// Format makes Unit satisfy the fmt.Formatter interface. The unit is formatted
// with dimensions appended. If the power if the dimension is not zero or one,
// symbol^power is appended, if the power is one, just the symbol is appended
// and if the power is zero, nothing is appended. Dimensions are appended
// in order by symbol name with positive powers ahead of negative powers.
func (u *Unit) Format(fs fmt.State, c rune) {
if u == nil {
fmt.Fprint(fs, "<nil>")
}
switch c {
case 'v':
if fs.Flag('#') {
fmt.Fprintf(fs, "&%#v", *u)
return
}
fallthrough
case 'e', 'E', 'f', 'F', 'g', 'G':
p, pOk := fs.Precision()
w, wOk := fs.Width()
switch {
case pOk && wOk:
fmt.Fprintf(fs, "%*.*"+string(c), w, p, u.value)
case pOk:
fmt.Fprintf(fs, "%.*"+string(c), p, u.value)
case wOk:
fmt.Fprintf(fs, "%*"+string(c), w, u.value)
default:
fmt.Fprintf(fs, "%"+string(c), u.value)
}
default:
fmt.Fprintf(fs, "%%!%c(*Unit=%g)", c, u)
return
}
if u.formatted == "" && len(u.dimensions) > 0 {
u.formatted = u.dimensions.String()
}
fmt.Fprintf(fs, " %s", u.formatted)
}
// Format may call Sprint(f) or Fprint(f) etc. to generate its output.
func (e *goof) Format(f fmt.State, c rune) {
s := e.getMessage(e.includeFieldsInFormat)
fs := &bytes.Buffer{}
fs.WriteRune('%')
if f.Flag('+') {
fs.WriteRune('+')
}
if f.Flag('-') {
fs.WriteRune('-')
}
if f.Flag('#') {
fs.WriteRune('#')
}
if f.Flag(' ') {
fs.WriteRune(' ')
}
if f.Flag('0') {
fs.WriteRune('0')
}
if w, ok := f.Width(); ok {
fs.WriteString(fmt.Sprintf("%d", w))
}
if p, ok := f.Precision(); ok {
fs.WriteString(fmt.Sprintf("%d", p))
}
fs.WriteRune(c)
fmt.Fprintf(f, fs.String(), s)
}
func (m Mass) Format(fs fmt.State, c rune) {
switch c {
case 'v':
if fs.Flag('#') {
fmt.Fprintf(fs, "%T(%v)", m, float64(m))
return
}
fallthrough
case 'e', 'E', 'f', 'F', 'g', 'G':
p, pOk := fs.Precision()
w, wOk := fs.Width()
switch {
case pOk && wOk:
fmt.Fprintf(fs, "%*.*"+string(c), w, p, float64(m))
case pOk:
fmt.Fprintf(fs, "%.*"+string(c), p, float64(m))
case wOk:
fmt.Fprintf(fs, "%*"+string(c), w, float64(m))
default:
fmt.Fprintf(fs, "%"+string(c), float64(m))
}
fmt.Fprint(fs, " kg")
default:
fmt.Fprintf(fs, "%%!%c(%T=%g kg)", c, m, float64(m))
return
}
}
func (st *stacktrace) Format(f fmt.State, c rune) {
var text string
if f.Flag('+') && !f.Flag('#') && c == 's' { // "%+s"
text = formatFull(st)
} else if f.Flag('#') && !f.Flag('+') && c == 's' { // "%#s"
text = formatBrief(st)
} else {
text = map[Format]func(*stacktrace) string{
FormatFull: formatFull,
FormatBrief: formatBrief,
}[DefaultFormat](st)
}
formatString := "%"
// keep the flags recognized by fmt package
for _, flag := range "-+# 0" {
if f.Flag(int(flag)) {
formatString += string(flag)
}
}
if width, has := f.Width(); has {
formatString += fmt.Sprint(width)
}
if precision, has := f.Precision(); has {
formatString += "."
formatString += fmt.Sprint(precision)
}
formatString += string(c)
fmt.Fprintf(f, formatString, text)
}
func (af *ansiFormatter) Format(f fmt.State, c rune) {
// reconstruct the format string in bf
bf := new(bytes.Buffer)
bf.WriteByte('%')
for _, x := range []byte{'-', '+', '#', ' ', '0'} {
if f.Flag(int(x)) {
bf.WriteByte(x)
}
}
if w, ok := f.Width(); ok {
fmt.Fprint(bf, w)
}
if p, ok := f.Precision(); ok {
fmt.Fprintf(bf, ".%d", p)
}
bf.WriteRune(c)
format := bf.String()
if len(af.codes) == 0 {
fmt.Fprintf(f, format, af.value)
return
}
fmt.Fprintf(f, "\x1b[%d", af.codes[0])
for _, code := range af.codes[1:] {
fmt.Fprintf(f, ";%d", code)
}
f.Write([]byte{'m'})
fmt.Fprintf(f, format, af.value)
fmt.Fprint(f, "\x1b[0m")
}
func (e escapable) Format(f fmt.State, c rune) {
s := "%"
for i := 0; i < 128; i++ {
if f.Flag(i) {
s += string(i)
}
}
if w, ok := f.Width(); ok {
s += fmt.Sprintf("%d", w)
}
if p, ok := f.Precision(); ok {
s += fmt.Sprintf(".%d", p)
}
// If we have an uppercase format char and a slice, format each slice
// element
if unicode.IsUpper(c) && reflect.TypeOf(e.x).Kind() == reflect.Slice {
s += strings.ToLower(string(c))
v := reflect.ValueOf(e.x)
for i := 0; i < v.Len(); i++ {
formatted := fmt.Sprintf(s, v.Index(i))
io.WriteString(f, ReadableEscapeArg(formatted))
if i+1 != v.Len() {
io.WriteString(f, " ")
}
}
return
}
s += string(c)
formatted := fmt.Sprintf(s, e.x)
io.WriteString(f, ReadableEscapeArg(formatted))
}
// TODO: Implement left/right align
func (b ByteSize) Format(f fmt.State, c rune) {
var decimal bool
switch c {
case 'd':
decimal = true
case 'b':
decimal = false
case 'v':
fmt.Fprintf(f, "%s", b.String())
return
default:
fmt.Fprintf(f, "%%!%c(ByteSize=%s)", c, b.String())
return
}
unit, divisor := b.UnitDivisor(decimal)
fmtstring := "%"
if w, ok := f.Width(); ok {
fmtstring += fmt.Sprintf("%d", w-len(unit)-1)
}
if p, ok := f.Precision(); ok {
fmtstring += fmt.Sprintf(".%d", p)
}
fmtstring += "f %s"
fmt.Fprintf(f, fmtstring, float64(b)/float64(divisor), unit)
}
func format(b Bed, fs fmt.State, c rune) {
bv := reflect.ValueOf(b)
if bv.IsNil() {
fmt.Fprint(fs, "<nil>")
return
}
bv = bv.Elem()
switch c {
case 'v':
if fs.Flag('#') {
fmt.Fprintf(fs, "&%#v", bv.Interface())
return
}
fallthrough
case 's':
width, _ := fs.Width()
if !b.canBed(width) {
fmt.Fprintf(fs, "%%!(BADWIDTH)%T", b)
return
}
if width == 0 {
width = bv.NumField()
}
for i := 0; i < width; i++ {
f := bv.Field(i).Interface()
if i >= rgbField {
switch i {
case rgbField:
rv := reflect.ValueOf(f)
if reflect.DeepEqual(rv.Interface(), color.RGBA{}) {
fs.Write([]byte{'0'})
} else {
fmt.Fprintf(fs, "%d,%d,%d",
rv.Field(0).Interface(), rv.Field(1).Interface(), rv.Field(2).Interface())
}
case blockCountField:
fmt.Fprint(fs, f)
case blockSizesField, blockStartsField:
av := reflect.ValueOf(f)
l := av.Len()
for j := 0; j < l; j++ {
fmt.Fprint(fs, av.Index(j).Interface())
if j < l-1 {
fs.Write([]byte{','})
}
}
}
} else {
fmt.Fprint(fs, f)
}
if i < width-1 {
fs.Write([]byte{'\t'})
}
}
default:
fmt.Fprintf(fs, "%%!%c(%T=%3s)", c, b, b)
}
}
// We implement fmt.Formatter interface just so we can left-align the cards.
func (s Suit) Format(f fmt.State, c int) {
x := stringTable[s]
f.Write([]byte(x))
if w, ok := f.Width(); ok {
for i := 0; i < w-len(x); i++ {
f.Write([]byte{' '})
}
}
}
func (fo formatter) passThrough(f fmt.State, c rune) {
s := "%"
for i := 0; i < 128; i++ {
if f.Flag(i) {
s += string(i)
}
}
if w, ok := f.Width(); ok {
s += fmt.Sprintf("%d", w)
}
if p, ok := f.Precision(); ok {
s += fmt.Sprintf(".%d", p)
}
s += string(c)
fmt.Fprintf(f, s, fo.x)
}
func (r Range) Format(f fmt.State, c int) {
i := byte(0)
for ; i < r.Min; i++ {
f.Write([]byte{'X'})
}
for ; float64(i)+0.5 < r.Mean; i++ {
f.Write([]byte{'x'})
}
for ; i < r.Max; i++ {
f.Write([]byte{'.'})
}
if w, ok := f.Width(); ok {
for ; i < byte(w); i++ {
f.Write([]byte{' '})
}
}
}
func (e escapable) Format(f fmt.State, c rune) {
s := "%"
for i := 0; i < 128; i++ {
if f.Flag(i) {
s += string(i)
}
}
if w, ok := f.Width(); ok {
s += fmt.Sprintf("%d", w)
}
if p, ok := f.Precision(); ok {
s += fmt.Sprintf(".%d", p)
}
s += string(c)
formatted := fmt.Sprintf(s, e.x)
io.WriteString(f, ReadableEscapeArg(formatted))
}
func defaultFormat(v interface{}, f fmt.State, c rune) {
buf := make([]string, 0, 10)
buf = append(buf, "%")
for i := 0; i < 128; i++ {
if f.Flag(i) {
buf = append(buf, string(i))
}
}
if w, ok := f.Width(); ok {
buf = append(buf, strconv.Itoa(w))
}
if p, ok := f.Precision(); ok {
buf = append(buf, "."+strconv.Itoa(p))
}
buf = append(buf, string(c))
format := strings.Join(buf, "")
fmt.Fprintf(f, format, v)
}
func formatString(fs fmt.State, c rune) string {
w, wOk := fs.Width()
p, pOk := fs.Precision()
var b bytes.Buffer
b.WriteByte('%')
for _, f := range "+-# 0" {
if fs.Flag(int(f)) {
b.WriteRune(f)
}
}
if wOk {
fmt.Fprint(&b, w)
}
if pOk {
b.WriteByte('.')
fmt.Fprint(&b, p)
}
b.WriteRune(c)
return b.String()
}
func (x *M_Cmd) Format(f fmt.State, c int) {
if c == 'v' && f.Flag('#') && x != nil {
fmt.Fprintf(f, "M_%s", M_Cmd_name[int32(*x)])
return
}
s := "%"
for i := 0; i < 128; i++ {
if f.Flag(i) {
s += string(i)
}
}
if w, ok := f.Width(); ok {
s += fmt.Sprintf("%d", w)
}
if p, ok := f.Precision(); ok {
s += fmt.Sprintf(".%d", p)
}
s += string(c)
fmt.Fprintf(f, s, (*int32)(x))
}
// Format allows text to satisfy the fmt.Formatter interface. The format
// behaviour is the same as for fmt.Print.
func (t text) Format(fs fmt.State, c rune) {
if t.Mode&activeBits != 0 {
t.Mode.set(fs)
}
w, wOk := fs.Width()
p, pOk := fs.Precision()
var (
b bytes.Buffer
prevString bool
)
b.WriteByte('%')
for _, f := range "+-# 0" {
if fs.Flag(int(f)) {
b.WriteRune(f)
}
}
if wOk {
fmt.Fprint(&b, w)
}
if pOk {
b.WriteByte('.')
fmt.Fprint(&b, p)
}
b.WriteRune(c)
format := b.String()
for _, v := range t.v {
isString := v != nil && doesString(v)
if isString && prevString {
fs.Write([]byte{' '})
}
prevString = isString
fmt.Fprintf(fs, format, v)
}
if t.Mode&activeBits != 0 && t.Mode&activeBits != Reset && t.Mode&NoResetAfter == 0 {
t.reset(fs)
}
}
// Format may call Sprint(f) or Fprint(f) etc. to generate its output.
func (k fileKey) Format(f fmt.State, c rune) {
fs := &bytes.Buffer{}
fs.WriteRune('%')
if f.Flag('+') {
fs.WriteRune('+')
}
if f.Flag('-') {
fs.WriteRune('-')
}
if f.Flag('#') {
fs.WriteRune('#')
}
if f.Flag(' ') {
fs.WriteRune(' ')
}
if f.Flag('0') {
fs.WriteRune('0')
}
if w, ok := f.Width(); ok {
fs.WriteString(fmt.Sprintf("%d", w))
}
if p, ok := f.Precision(); ok {
fs.WriteString(fmt.Sprintf("%d", p))
}
var (
s string
cc = c
)
if c == 'k' {
s = k.key()
cc = 's'
} else {
s = k.String()
}
fs.WriteRune(cc)
fmt.Fprintf(f, fs.String(), s)
}
// Format implements fmt.Formatter. It accepts all the regular
// formats for floating-point numbers ('e', 'E', 'f', 'F', 'g',
// 'G') as well as 'b', 'p', and 'v'. See (*Float).Text for the
// interpretation of 'b' and 'p'. The 'v' format is handled like
// 'g'.
// Format also supports specification of the minimum precision
// in digits, the output field width, as well as the format verbs
// '+' and ' ' for sign control, '0' for space or zero padding,
// and '-' for left or right justification. See the fmt package
// for details.
func (x *Float) Format(s fmt.State, format rune) {
prec, hasPrec := s.Precision()
if !hasPrec {
prec = 6 // default precision for 'e', 'f'
}
switch format {
case 'e', 'E', 'f', 'b', 'p':
// nothing to do
case 'F':
// (*Float).Text doesn't support 'F'; handle like 'f'
format = 'f'
case 'v':
// handle like 'g'
format = 'g'
fallthrough
case 'g', 'G':
if !hasPrec {
prec = -1 // default precision for 'g', 'G'
}
default:
fmt.Fprintf(s, "%%!%c(*big.Float=%s)", format, x.String())
return
}
var buf []byte
buf = x.Append(buf, byte(format), prec)
if len(buf) == 0 {
buf = []byte("?") // should never happen, but don't crash
}
// len(buf) > 0
var sign string
switch {
case buf[0] == '-':
sign = "-"
buf = buf[1:]
case buf[0] == '+':
// +Inf
sign = "+"
if s.Flag(' ') {
sign = " "
}
buf = buf[1:]
case s.Flag('+'):
sign = "+"
case s.Flag(' '):
sign = " "
}
var padding int
if width, hasWidth := s.Width(); hasWidth && width > len(sign)+len(buf) {
padding = width - len(sign) - len(buf)
}
switch {
case s.Flag('0') && !x.IsInf():
// 0-padding on left
writeMultiple(s, sign, 1)
writeMultiple(s, "0", padding)
s.Write(buf)
case s.Flag('-'):
// padding on right
writeMultiple(s, sign, 1)
s.Write(buf)
writeMultiple(s, " ", padding)
default:
// padding on left
writeMultiple(s, " ", padding)
writeMultiple(s, sign, 1)
s.Write(buf)
}
}
// Format is a support routine for fmt.Formatter. It accepts
// the formats 'b' (binary), 'o' (octal), 'd' (decimal), 'x'
// (lowercase hexadecimal), and 'X' (uppercase hexadecimal).
// Also supported are the full suite of package fmt's format
// verbs for integral types, including '+', '-', and ' '
// for sign control, '#' for leading zero in octal and for
// hexadecimal, a leading "0x" or "0X" for "%#x" and "%#X"
// respectively, specification of minimum digits precision,
// output field width, space or zero padding, and left or
// right justification.
//
func (x *Int) Format(s fmt.State, ch int) {
cs := charset(ch)
// special cases
switch {
case cs == "":
// unknown format
fmt.Fprintf(s, "%%!%c(big.Int=%s)", ch, x.String())
return
case x == nil:
fmt.Fprint(s, "<nil>")
return
}
// determine sign character
sign := ""
switch {
case x.neg:
sign = "-"
case s.Flag('+'): // supersedes ' ' when both specified
sign = "+"
case s.Flag(' '):
sign = " "
}
// determine prefix characters for indicating output base
prefix := ""
if s.Flag('#') {
switch ch {
case 'o': // octal
prefix = "0"
case 'x': // hexadecimal
prefix = "0x"
case 'X':
prefix = "0X"
}
}
// determine digits with base set by len(cs) and digit characters from cs
digits := x.abs.string(cs)
// number of characters for the three classes of number padding
var left int // space characters to left of digits for right justification ("%8d")
var zeroes int // zero characters (actually cs[0]) as left-most digits ("%.8d")
var right int // space characters to right of digits for left justification ("%-8d")
// determine number padding from precision: the least number of digits to output
precision, precisionSet := s.Precision()
if precisionSet {
switch {
case len(digits) < precision:
zeroes = precision - len(digits) // count of zero padding
case digits == "0" && precision == 0:
return // print nothing if zero value (x == 0) and zero precision ("." or ".0")
}
}
// determine field pad from width: the least number of characters to output
length := len(sign) + len(prefix) + zeroes + len(digits)
if width, widthSet := s.Width(); widthSet && length < width { // pad as specified
switch d := width - length; {
case s.Flag('-'):
// pad on the right with spaces; supersedes '0' when both specified
right = d
case s.Flag('0') && !precisionSet:
// pad with zeroes unless precision also specified
zeroes = d
default:
// pad on the left with spaces
left = d
}
}
// print number as [left pad][sign][prefix][zero pad][digits][right pad]
writeMultiple(s, " ", left)
writeMultiple(s, sign, 1)
writeMultiple(s, prefix, 1)
writeMultiple(s, "0", zeroes)
writeMultiple(s, digits, 1)
writeMultiple(s, " ", right)
}
func formatSex(x float64, caller int, mock *string, f fmt.State, c rune) error {
// valiate verb
switch c {
case 's', 'd', 'c', 'v', 'x':
default:
fmt.Fprintf(f, "Invalid verb: %%%c", c)
return nil // not an overflow error
}
// declare some variables ahead of goto
var (
r string // formatted result, ultimately
err error
x60 int64
degHr, min int64
s1 string
sexRune UnitSymbols
wid1 int
wid1Spec bool
)
neg := x < 0
if neg {
x = -x
}
// determine unit symbols
switch {
case c == 'x':
sexRune = UnitSymbols{' ', ' ', ' '}
case caller == fsAngle:
sexRune = DMSRunes
default:
sexRune = HMSRunes
}
// get meaningful precision
prec, ok := f.Precision()
if !ok {
prec = 0
}
if prec == 64 {
degHr = int64(.5 + x/3600)
} else {
if prec == 62 {
x60 = int64(.5 + x/60)
} else {
// format seconds into r
_, x60, r, err = Split60(x, prec, f.Flag('0'))
if err != nil {
goto Overflow
}
// add seconds unit symbol
switch c {
case 's', 'v':
r += string(sexRune.S)
case 'd':
r = DecSymAdd(r, sexRune.S)
case 'c':
r = DecSymCombine(r, sexRune.S)
}
}
degHr = x60 / 60
min = x60 % 60
// format minutes into r
if f.Flag('#') || x60 > 0 {
if f.Flag('0') {
r = fmt.Sprintf("%02d%c%s", min, sexRune.M, r)
} else {
r = fmt.Sprintf("%d%c%s", min, sexRune.M, r)
}
}
}
s1 = strconv.FormatInt(degHr, 10)
wid1, wid1Spec = f.Width()
if wid1Spec {
// simple rule applies in all cases where width is specified:
if len(s1) > wid1 {
if caller == fsAngle {
err = WidthErrorDegreeOverflow
} else {
err = WidthErrorHourOverflow
}
goto Overflow
}
}
// format degrees or hours into r
if f.Flag('#') || degHr > 0 {
if f.Flag('0') {
r = fmt.Sprintf("%0*s%c%s", wid1, s1, sexRune.First, r)
} else {
r = fmt.Sprintf("%s%c%s", s1, sexRune.First, r)
}
}
// add leading sign
if caller != fsRA {
switch {
case neg:
r = "-" + r
case f.Flag('+'):
r = "+" + r
case f.Flag(' '):
r = " " + r
}
}
if mock == nil {
f.Write([]byte(r))
} else {
*mock = r
}
return nil
Overflow:
err1 := err
var width int
if mock != nil { // detect recursive loop
width = 10
} else {
var valid string
formatSex(0, caller, &valid, f, c)
width = utf8.RuneCountInString(valid)
}
f.Write(bytes.Repeat([]byte{'*'}, width)) // emit overflow indicator
return err1
}
// Format is a support routine for fmt.Formatter. It accepts
// the formats 'b' (binary), 'o' (octal), 'd' (decimal), 'x'
// (lowercase hexadecimal), and 'X' (uppercase hexadecimal).
//
func (x *Int) Format(s fmt.State, ch int) {
cs := charset(ch)
// special cases
switch {
case cs == "":
// unknown format
fmt.Fprintf(s, "%%!%c(big.Int=%s)", ch, x.String())
return
case x == nil:
fmt.Fprint(s, "<nil>")
return
}
// determine format
format := "%s"
if s.Flag('#') {
switch ch {
case 'o':
format = "0%s"
case 'x':
format = "0x%s"
case 'X':
format = "0X%s"
}
}
t := fmt.Sprintf(format, x.abs.string(cs))
// insert spaces in hexadecimal formats if needed
if len(t) > 0 && s.Flag(' ') && (ch == 'x' || ch == 'X') {
spaces := (len(t)+1)/2 - 1
spaced := make([]byte, len(t)+spaces)
var i, j int
spaced[i] = t[j]
i++
j++
if len(t)&1 == 0 {
spaced[i] = t[j]
i++
j++
}
for j < len(t) {
spaced[i] = ' '
i++
spaced[i] = t[j]
i++
j++
spaced[i] = t[j]
i++
j++
}
t = string(spaced)
}
// determine sign prefix
prefix := ""
switch {
case x.neg:
prefix = "-"
case s.Flag('+'):
prefix = "+"
case s.Flag(' ') && ch != 'x' && ch != 'X':
prefix = " "
}
// fill to minimum width and prepend sign prefix
if width, ok := s.Width(); ok && len(t)+len(prefix) < width {
if s.Flag('0') {
t = fmt.Sprintf("%s%0*d%s", prefix, width-len(t)-len(prefix), 0, t)
} else {
if s.Flag('-') {
width = -width
}
t = fmt.Sprintf("%*s", width, prefix+t)
}
} else if prefix != "" {
t = prefix + t
}
fmt.Fprint(s, t)
}
// format prints a pretty representation of m to the fs io.Writer. The format character c
// specifies the numerical representation of of elements; valid values are those for float64
// specified in the fmt package, with their associated flags. In addition to this, a space
// preceding a verb indicates that zero values should be represented by the dot character.
// The printed range of the matrix can be limited by specifying a positive value for margin;
// If margin is greater than zero, only the first and last margin rows/columns of the matrix
// are output. If squeeze is true, column widths are determined on a per-column basis.
//
// format will not provide Go syntax output.
func format(m Matrix, prefix string, margin int, dot byte, squeeze bool, fs fmt.State, c rune) {
rows, cols := m.Dims()
var printed int
if margin <= 0 {
printed = rows
if cols > printed {
printed = cols
}
} else {
printed = margin
}
prec, pOk := fs.Precision()
if !pOk {
prec = -1
}
var (
maxWidth int
widths widther
buf, pad []byte
)
if squeeze {
widths = make(columnWidth, cols)
} else {
widths = new(uniformWidth)
}
switch c {
case 'v', 'e', 'E', 'f', 'F', 'g', 'G':
if c == 'v' {
buf, maxWidth = maxCellWidth(m, 'g', printed, prec, widths)
} else {
buf, maxWidth = maxCellWidth(m, c, printed, prec, widths)
}
default:
fmt.Fprintf(fs, "%%!%c(%T=Dims(%d, %d))", c, m, rows, cols)
return
}
width, _ := fs.Width()
width = max(width, maxWidth)
pad = make([]byte, max(width, 2))
for i := range pad {
pad[i] = ' '
}
first := true
if rows > 2*printed || cols > 2*printed {
first = false
fmt.Fprintf(fs, "Dims(%d, %d)\n", rows, cols)
}
skipZero := fs.Flag(' ')
for i := 0; i < rows; i++ {
if !first {
fmt.Fprint(fs, prefix)
}
first = false
var el string
switch {
case rows == 1:
fmt.Fprint(fs, "[")
el = "]"
case i == 0:
fmt.Fprint(fs, "⎡")
el = "⎤\n"
case i < rows-1:
fmt.Fprint(fs, "⎢")
el = "⎥\n"
default:
fmt.Fprint(fs, "⎣")
el = "⎦"
}
for j := 0; j < cols; j++ {
if j >= printed && j < cols-printed {
j = cols - printed - 1
if i == 0 || i == rows-1 {
fmt.Fprint(fs, "... ... ")
} else {
fmt.Fprint(fs, " ")
}
continue
}
v := m.At(i, j)
if v == 0 && skipZero {
buf = buf[:1]
buf[0] = dot
} else {
if c == 'v' {
buf = strconv.AppendFloat(buf[:0], v, 'g', prec, 64)
} else {
buf = strconv.AppendFloat(buf[:0], v, byte(c), prec, 64)
}
}
if fs.Flag('-') {
fs.Write(buf)
fs.Write(pad[:widths.width(j)-len(buf)])
} else {
fs.Write(pad[:widths.width(j)-len(buf)])
fs.Write(buf)
}
if j < cols-1 {
fs.Write(pad[:2])
}
}
fmt.Fprint(fs, el)
if i >= printed-1 && i < rows-printed && 2*printed < rows {
i = rows - printed - 1
fmt.Fprint(fs, " .\n .\n .\n")
continue
}
}
}
// Format prints a pretty representation of m to the fs io.Writer. The format character c
// specifies the numerical representation of of elements; valid values are those for float64
// specified in the fmt package, with their associated flags. In addition to this, a '#' for
// all valid verbs except 'v' indicates that zero values be represented by the dot character.
// The '#' associated with the 'v' verb formats the matrix with Go syntax representation.
// The printed range of the matrix can be limited by specifying a positive value for margin;
// If margin is greater than zero, only the first and last margin rows/columns of the matrix
// are output.
func Format(m Matrix, margin int, dot byte, fs fmt.State, c rune) {
rows, cols := m.Dims()
var printed int
if margin <= 0 {
printed = rows
if cols > printed {
printed = cols
}
} else {
printed = margin
}
prec, pOk := fs.Precision()
if !pOk {
prec = -1
}
var (
maxWidth int
buf, pad []byte
)
switch c {
case 'v', 'e', 'E', 'f', 'F', 'g', 'G':
// Note that the '#' flag should have been dealt with by the type.
// So %v is treated exactly as %g here.
if c == 'v' {
buf, maxWidth = maxCellWidth(m, 'g', printed, prec)
} else {
buf, maxWidth = maxCellWidth(m, c, printed, prec)
}
default:
fmt.Fprintf(fs, "%%!%c(%T=Dims(%d, %d))", c, m, rows, cols)
return
}
width, _ := fs.Width()
width = max(width, maxWidth)
pad = make([]byte, max(width, 2))
for i := range pad {
pad[i] = ' '
}
if rows > 2*printed || cols > 2*printed {
fmt.Fprintf(fs, "Dims(%d, %d)\n", rows, cols)
}
skipZero := fs.Flag('#')
for i := 0; i < rows; i++ {
var el string
switch {
case rows == 1:
fmt.Fprint(fs, "[")
el = "]"
case i == 0:
fmt.Fprint(fs, "⎡")
el = "⎤\n"
case i < rows-1:
fmt.Fprint(fs, "⎢")
el = "⎥\n"
default:
fmt.Fprint(fs, "⎣")
el = "⎦"
}
for j := 0; j < cols; j++ {
if j >= printed && j < cols-printed {
j = cols - printed - 1
if i == 0 || i == rows-1 {
fmt.Fprint(fs, "... ... ")
} else {
fmt.Fprint(fs, " ")
}
continue
}
v := m.At(i, j)
if v == 0 && skipZero {
buf = buf[:1]
buf[0] = dot
} else {
if c == 'v' {
buf = strconv.AppendFloat(buf[:0], v, 'g', prec, 64)
} else {
buf = strconv.AppendFloat(buf[:0], v, byte(c), prec, 64)
}
}
if fs.Flag('-') {
fs.Write(buf)
fs.Write(pad[:width-len(buf)])
} else {
fs.Write(pad[:width-len(buf)])
fs.Write(buf)
}
if j < cols-1 {
fs.Write(pad[:2])
}
}
fmt.Fprint(fs, el)
if i >= printed-1 && i < rows-printed && 2*printed < rows {
i = rows - printed - 1
fmt.Fprint(fs, " .\n .\n .\n")
continue
}
}
}
// Format is a support routine for fmt.Formatter. It accepts the formats 'v' and 's'
// (string), 'a' (fasta) and 'q' (fastq). String, fasta and fastq formats support
// truncated output via the verb's precision. Fasta format supports sequence line
// specification via the verb's width field. Fastq format supports optional inclusion
// of the '+' line descriptor line with the '+' flag. The 'v' verb supports the '#'
// flag for Go syntax output. The 's' and 'v' formats support the '-' flag for
// omission of the sequence name.
func (r Row) Format(fs fmt.State, c rune) {
var (
s = r.Align
w, wOk = fs.Width()
p, pOk = fs.Precision()
buf alphabet.Columns
)
if s != nil {
if pOk {
buf = s.Seq[:min(p, len(s.Seq))]
} else {
buf = s.Seq
}
}
switch c {
case 'v':
if fs.Flag('#') {
type shadowRow Row
sr := fmt.Sprintf("%#v", shadowRow(r))
fmt.Fprintf(fs, "%T%s", r, sr[strings.Index(sr, "{"):])
return
}
fallthrough
case 's':
if s == nil {
fmt.Fprint(fs, "<nil>")
return
}
if !fs.Flag('-') {
fmt.Fprintf(fs, "%q ", r.Name())
}
for _, lc := range buf {
fmt.Fprintf(fs, "%c", lc[r.Row])
}
if pOk && s != nil && p < s.Len() {
fmt.Fprint(fs, "...")
}
case 'a':
if s == nil {
return
}
r.formatDescLineTo(fs, '>')
for i, lc := range buf {
fmt.Fprintf(fs, "%c", lc[r.Row])
if wOk && i < s.Len()-1 && i%w == w-1 {
fmt.Fprintln(fs)
}
}
if pOk && p < s.Len() {
fmt.Fprint(fs, "...")
}
case 'q':
if s == nil {
return
}
r.formatDescLineTo(fs, '@')
for _, lc := range buf {
fmt.Fprintf(fs, "%c", lc[r.Row])
}
if pOk && p < s.Len() {
fmt.Fprintln(fs, "...")
} else {
fmt.Fprintln(fs)
}
if fs.Flag('+') {
r.formatDescLineTo(fs, '+')
} else {
fmt.Fprintln(fs, "+")
}
e := seq.DefaultQphred.Encode(seq.DefaultEncoding)
if e >= unicode.MaxASCII {
e = unicode.MaxASCII - 1
}
for _ = range buf {
fmt.Fprintf(fs, "%c", e)
}
if pOk && p < s.Len() {
fmt.Fprint(fs, "...")
}
default:
fmt.Fprintf(fs, "%%!%c(alignment.Row=%.10s)", c, s)
}
}
// Format implements fmt.Formatter. It accepts the formats
// 'b' (binary), 'o' (octal), 'd' (decimal), 'x' (lowercase
// hexadecimal), and 'X' (uppercase hexadecimal).
// Also supported are the full suite of package fmt's format
// flags for integral types, including '+' and ' ' for sign
// control, '#' for leading zero in octal and for hexadecimal,
// a leading "0x" or "0X" for "%#x" and "%#X" respectively,
// specification of minimum digits precision, output field
// width, space or zero padding, and '-' for left or right
// justification.
//
func (x *Int) Format(s fmt.State, ch rune) {
// determine base
var base int
switch ch {
case 'b':
base = 2
case 'o':
base = 8
case 'd', 's', 'v':
base = 10
case 'x', 'X':
base = 16
default:
// unknown format
fmt.Fprintf(s, "%%!%c(big.Int=%s)", ch, x.String())
return
}
if x == nil {
fmt.Fprint(s, "<nil>")
return
}
// determine sign character
sign := ""
switch {
case x.neg:
sign = "-"
case s.Flag('+'): // supersedes ' ' when both specified
sign = "+"
case s.Flag(' '):
sign = " "
}
// determine prefix characters for indicating output base
prefix := ""
if s.Flag('#') {
switch ch {
case 'o': // octal
prefix = "0"
case 'x': // hexadecimal
prefix = "0x"
case 'X':
prefix = "0X"
}
}
digits := x.abs.utoa(base)
if ch == 'X' {
// faster than bytes.ToUpper
for i, d := range digits {
if 'a' <= d && d <= 'z' {
digits[i] = 'A' + (d - 'a')
}
}
}
// number of characters for the three classes of number padding
var left int // space characters to left of digits for right justification ("%8d")
var zeros int // zero characters (actually cs[0]) as left-most digits ("%.8d")
var right int // space characters to right of digits for left justification ("%-8d")
// determine number padding from precision: the least number of digits to output
precision, precisionSet := s.Precision()
if precisionSet {
switch {
case len(digits) < precision:
zeros = precision - len(digits) // count of zero padding
case len(digits) == 1 && digits[0] == '0' && precision == 0:
return // print nothing if zero value (x == 0) and zero precision ("." or ".0")
}
}
// determine field pad from width: the least number of characters to output
length := len(sign) + len(prefix) + zeros + len(digits)
if width, widthSet := s.Width(); widthSet && length < width { // pad as specified
switch d := width - length; {
case s.Flag('-'):
// pad on the right with spaces; supersedes '0' when both specified
right = d
case s.Flag('0') && !precisionSet:
// pad with zeros unless precision also specified
zeros = d
default:
// pad on the left with spaces
left = d
}
}
// print number as [left pad][sign][prefix][zero pad][digits][right pad]
writeMultiple(s, " ", left)
writeMultiple(s, sign, 1)
writeMultiple(s, prefix, 1)
writeMultiple(s, "0", zeros)
s.Write(digits)
writeMultiple(s, " ", right)
}
// Format is a support routine for fmt.Formatter. It accepts the formats 'v' and 's'
// (string), 'a' (fasta) and 'q' (fastq). String, fasta and fastq formats support
// truncated output via the verb's precision. Fasta format supports sequence line
// specification via the verb's width field. Fastq format supports optional inclusion
// of the '+' line descriptor line with the '+' flag. The 'v' verb supports the '#'
// flag for Go syntax output. The 's' and 'v' formats support the '-' flag for
// omission of the sequence name.
func (s *QSeq) Format(fs fmt.State, c rune) {
if s == nil {
fmt.Fprint(fs, "<nil>")
return
}
var (
w, wOk = fs.Width()
p, pOk = fs.Precision()
buf []alphabet.QLetter
)
if pOk {
buf = s.Seq[:min(p, len(s.Seq))]
} else {
buf = s.Seq
}
switch c {
case 'v':
if fs.Flag('#') {
fmt.Fprintf(fs, "&%#v", *s)
return
}
fallthrough
case 's':
if !fs.Flag('-') {
fmt.Fprintf(fs, "%q ", s.ID)
}
for _, ql := range buf {
fmt.Fprintf(fs, "%c", s.QFilter(s.Alpha, s.Threshold, ql))
}
if pOk && p < s.Len() {
fmt.Fprint(fs, "...")
}
case 'a':
s.formatDescLineTo(fs, '>')
for i, ql := range buf {
fmt.Fprintf(fs, "%c", s.QFilter(s.Alpha, s.Threshold, ql))
if wOk && i < s.Len()-1 && i%w == w-1 {
fmt.Fprintln(fs)
}
}
if pOk && p < s.Len() {
fmt.Fprint(fs, "...")
}
case 'q':
s.formatDescLineTo(fs, '@')
for _, ql := range buf {
fmt.Fprintf(fs, "%c", s.QFilter(s.Alpha, s.Threshold, ql))
}
if pOk && p < s.Len() {
fmt.Fprintln(fs, "...")
} else {
fmt.Fprintln(fs)
}
if fs.Flag('+') {
s.formatDescLineTo(fs, '+')
} else {
fmt.Fprintln(fs, "+")
}
for _, ql := range buf {
e := ql.Q.Encode(s.Encode)
if e >= unicode.MaxASCII {
e = unicode.MaxASCII - 1
}
fmt.Fprintf(fs, "%c", e)
}
if pOk && p < s.Len() {
fmt.Fprint(fs, "...")
}
default:
fmt.Fprintf(fs, "%%!%c(linear.QSeq=%.10s)", c, s)
}
}
