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257 lines
7.3 KiB
257 lines
7.3 KiB
// Copyright (c) 2013 by Michael Dvorkin. All Rights Reserved.
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//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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package mop
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import (
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`bytes`
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`fmt`
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`regexp`
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`strings`
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`text/template`
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`time`
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)
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const TotalColumns = 15
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type Column struct {
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width int
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title string
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}
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type Layout struct {
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columns []Column
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}
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//-----------------------------------------------------------------------------
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func (self *Layout) Initialize() *Layout {
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self.columns = []Column{
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{ -7, `Ticker` },
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{ 10, `Last` },
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{ 10, `Change` },
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{ 10, `Change%` },
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{ 10, `Open` },
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{ 10, `Low` },
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{ 10, `High` },
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{ 10, `52w Low` },
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{ 10, `52w High` },
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{ 11, `Volume` },
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{ 11, `AvgVolume` },
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{ 9, `P/E` },
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{ 9, `Dividend` },
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{ 9, `Yield` },
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{ 11, `MktCap` },
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}
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return self
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}
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//-----------------------------------------------------------------------------
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func (self *Layout) Market(m *Market) string {
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markup := `{{.Dow.name}}: {{.Dow.change}} ({{.Dow.percent}}) at {{.Dow.latest}}, {{.Sp500.name}}: {{.Sp500.change}} ({{.Sp500.percent}}) at {{.Sp500.latest}}, {{.Nasdaq.name}}: {{.Nasdaq.change}} ({{.Nasdaq.percent}}) at {{.Nasdaq.latest}}
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{{.Advances.name}}: {{.Advances.nyse}} ({{.Advances.nysep}}) on NYSE and {{.Advances.nasdaq}} ({{.Advances.nasdaqp}}) on Nasdaq. {{.Declines.name}}: {{.Declines.nyse}} ({{.Declines.nysep}}) on NYSE and {{.Declines.nasdaq}} ({{.Declines.nasdaqp}}) on Nasdaq {{if .IsClosed}}<right>U.S. markets closed</right>{{end}}
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New highs: {{.Highs.nyse}} on NYSE and {{.Highs.nasdaq}} on Nasdaq. New lows: {{.Lows.nyse}} on NYSE and {{.Lows.nasdaq}} on Nasdaq.`
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template, err := template.New(`market`).Parse(markup)
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if err != nil {
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panic(err)
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}
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buffer := new(bytes.Buffer)
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highlight(m.Dow, m.Sp500, m.Nasdaq)
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if err = template.Execute(buffer, m); err != nil {
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panic(err)
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}
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return buffer.String()
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}
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//-----------------------------------------------------------------------------
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func (self *Layout) Quotes(quotes *Quotes) string {
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vars := struct {
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Now string
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Header string
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Stocks []Stock
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}{
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time.Now().Format(`3:04:05pm PST`),
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self.Header(quotes.profile),
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self.prettify(quotes),
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}
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markup := `<right><white>{{.Now}}</></right>
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{{.Header}}
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{{range.Stocks}}{{if .Advancing}}<green>{{end}}{{.Ticker}}{{.LastTrade}}{{.Change}}{{.ChangePct}}{{.Open}}{{.Low}}{{.High}}{{.Low52}}{{.High52}}{{.Volume}}{{.AvgVolume}}{{.PeRatio}}{{.Dividend}}{{.Yield}}{{.MarketCap}}</>
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{{end}}`
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//markup += fmt.Sprintf("[%v]", quotes.profile.Grouped)
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template, err := template.New(`quotes`).Parse(markup)
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if err != nil {
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panic(err)
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}
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buffer := new(bytes.Buffer)
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err = template.Execute(buffer, vars)
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if err != nil {
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panic(err)
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}
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return buffer.String()
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}
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//-----------------------------------------------------------------------------
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func (self *Layout) Header(profile *Profile) string {
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str, selected_column := ``, profile.selected_column
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for i,col := range self.columns {
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arrow := arrow_for(i, profile)
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if i != selected_column {
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str += fmt.Sprintf(`%*s`, col.width, arrow + col.title)
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} else {
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str += fmt.Sprintf(`<r>%*s</r>`, col.width, arrow + col.title)
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}
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}
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return `<u>` + str + `</u>`
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}
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//-----------------------------------------------------------------------------
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func (self *Layout) prettify(quotes *Quotes) []Stock {
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pretty := make([]Stock, len(quotes.stocks))
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for i, q := range quotes.stocks {
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pretty[i].Ticker = pad(q.Ticker, self.columns[0].width)
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pretty[i].LastTrade = pad(currency(q.LastTrade), self.columns[1].width)
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pretty[i].Change = pad(currency(q.Change), self.columns[2].width)
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pretty[i].ChangePct = pad(last(q.ChangePct), self.columns[3].width)
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pretty[i].Open = pad(currency(q.Open), self.columns[4].width)
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pretty[i].Low = pad(currency(q.Low), self.columns[5].width)
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pretty[i].High = pad(currency(q.High), self.columns[6].width)
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pretty[i].Low52 = pad(currency(q.Low52), self.columns[7].width)
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pretty[i].High52 = pad(currency(q.High52), self.columns[8].width)
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pretty[i].Volume = pad(q.Volume, self.columns[9].width)
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pretty[i].AvgVolume = pad(q.AvgVolume, self.columns[10].width)
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pretty[i].PeRatio = pad(blank(q.PeRatioX), self.columns[11].width)
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pretty[i].Dividend = pad(blank_currency(q.Dividend), self.columns[12].width)
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pretty[i].Yield = pad(percent(q.Yield), self.columns[13].width)
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pretty[i].MarketCap = pad(currency(q.MarketCapX), self.columns[14].width)
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pretty[i].Advancing = q.Advancing
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}
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profile := quotes.profile
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new(Sorter).Initialize(profile).SortByCurrentColumn(pretty)
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//
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// Group stocks by advancing/declining unless sorted by Chanage or Change%
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// in which case the grouping is done already.
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//
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if profile.Grouped && (profile.SortColumn < 2 || profile.SortColumn > 3) {
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pretty = group(pretty)
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}
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return pretty
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}
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//-----------------------------------------------------------------------------
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func highlight(collections ...map[string]string) {
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for _, collection := range collections {
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if collection[`change`][0:1] != `-` {
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collection[`change`] = `<green>` + collection[`change`] + `</>`
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}
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}
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}
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//-----------------------------------------------------------------------------
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func group(stocks []Stock) []Stock {
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grouped := make([]Stock, len(stocks))
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current := 0
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for _,stock := range stocks {
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if strings.Index(stock.Change, "-") == -1 {
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grouped[current] = stock
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current++
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}
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}
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for _,stock := range stocks {
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if strings.Index(stock.Change, "-") != -1 {
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grouped[current] = stock
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current++
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}
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}
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return grouped
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}
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//-----------------------------------------------------------------------------
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func arrow_for(column int, profile *Profile) string {
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if column == profile.SortColumn {
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if profile.Ascending {
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return string('\U00002191')
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}
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return string('\U00002193')
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}
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return ``
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}
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//-----------------------------------------------------------------------------
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func blank(str string) string {
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if len(str) == 3 && str[0:3] == `N/A` {
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return `-`
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}
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return str
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}
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//-----------------------------------------------------------------------------
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func blank_currency(str string) string {
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if str == `0.00` {
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return `-`
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}
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return currency(str)
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}
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//-----------------------------------------------------------------------------
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func last(str string) string {
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if len(str) >= 6 && str[0:6] != `N/A - ` {
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return str
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}
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return str[6:]
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}
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//-----------------------------------------------------------------------------
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func currency(str string) string {
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if str == `N/A` {
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return `-`
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}
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if sign := str[0:1]; sign == `+` || sign == `-` {
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return sign + `$` + str[1:]
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}
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return `$` + str
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}
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//-----------------------------------------------------------------------------
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func percent(str string) string {
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if str == `N/A` {
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return `-`
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}
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return str + `%`
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}
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//-----------------------------------------------------------------------------
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func pad(str string, width int) string {
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re := regexp.MustCompile(`(\.\d+)[MB]?$`)
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match := re.FindStringSubmatch(str)
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if len(match) > 0 {
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switch len(match[1]) {
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case 2:
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str = strings.Replace(str, match[1], match[1] + `0`, 1)
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case 4, 5:
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str = strings.Replace(str, match[1], match[1][0:3], 1)
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}
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}
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return fmt.Sprintf(`%*s`, width, str)
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}
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