Text search feature #122
11
bombadillo.1
11
bombadillo.1
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@ -88,6 +88,13 @@ k
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Scroll up a single line.
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.TP
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.B
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n
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Jump to next found text item.
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.TP
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.B
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Jump to previous found text item.
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.TP
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.B
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q
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Quit \fBbombadillo\fP.
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.TP
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@ -100,6 +107,10 @@ u
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Scroll up an amount corresponding to 75% of your terminal window height in the current document.
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.TP
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.B
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/
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Search for text within current document. / followed by a text query will highlight and allow navigation of found text. / with an empty query will clear the current query.
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.TP
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.B
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<tab>
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Toggle the scroll focus between the bookmarks panel and the document panel. Only has an effect if the bookmarks panel is open.
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.TP
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115
client.go
115
client.go
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@ -90,9 +90,8 @@ func (c *client) Draw() {
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var re *regexp.Regexp
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if c.Options["theme"] == "inverse" {
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screen.WriteString("\033[7m")
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} else if c.Options["theme"] == "color" {
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re = regexp.MustCompile(`\033\[(?:\d*;?)+[A-Za-z]`)
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}
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re = regexp.MustCompile(`\033\[(?:\d*;?)+[A-Za-z]`)
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if c.BookMarks.IsOpen {
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bm := c.BookMarks.Render(c.Width, c.Height)
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bmWidth := len([]rune(bm[0]))
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@ -137,11 +136,9 @@ func (c *client) Draw() {
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for i := 0; i < c.Height-3; i++ {
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if i < len(pageContent) {
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extra := 0
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if c.Options["theme"] == "color" {
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escapes := re.FindAllString(pageContent[i], -1)
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for _, esc := range escapes {
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extra += len(esc)
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}
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escapes := re.FindAllString(pageContent[i], -1)
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for _, esc := range escapes {
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extra += len(esc)
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}
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screen.WriteString(fmt.Sprintf("%-*.*s", c.Width+extra, c.Width+extra, pageContent[i]))
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screen.WriteString("\n")
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@ -235,6 +232,45 @@ func (c *client) TakeControlInput() {
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// Toggle bookmark browser focus on/off
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c.BookMarks.ToggleFocused()
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c.Draw()
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case 'n':
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// Next search item
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c.ClearMessage()
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err := c.NextSearchItem(1)
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if err != nil {
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c.SetMessage(err.Error(), false)
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c.DrawMessage()
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}
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case 'N':
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// Previous search item
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c.ClearMessage()
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err := c.NextSearchItem(-1)
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if err != nil {
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c.SetMessage(err.Error(), false)
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c.DrawMessage()
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}
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case '/':
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// Search for text
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c.ClearMessage()
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c.ClearMessageLine()
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if c.Options["theme"] == "normal" || c.Options["theme"] == "color" {
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fmt.Printf("\033[7m%*.*s\r", c.Width, c.Width, "")
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}
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entry, err := cui.GetLine("/")
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c.ClearMessageLine()
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if err != nil {
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c.SetMessage(err.Error(), true)
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c.DrawMessage()
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break
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}
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err = c.find(entry)
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if err != nil {
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c.SetMessage(err.Error(), true)
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c.DrawMessage()
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}
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err = c.NextSearchItem(0)
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if err != nil {
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c.Draw()
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}
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case ':', ' ':
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// Process a command
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c.ClearMessage()
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@ -242,7 +278,7 @@ func (c *client) TakeControlInput() {
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if c.Options["theme"] == "normal" || c.Options["theme"] == "color" {
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fmt.Printf("\033[7m%*.*s\r", c.Width, c.Width, "")
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}
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entry, err := cui.GetLine()
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entry, err := cui.GetLine(": ")
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c.ClearMessageLine()
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if err != nil {
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c.SetMessage(err.Error(), true)
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@ -644,7 +680,7 @@ func (c *client) search(query, url, question string) {
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fmt.Printf("\033[7m%*.*s\r", c.Width, c.Width, "")
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}
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fmt.Print(question)
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entry, err = cui.GetLine()
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entry, err = cui.GetLine("? ")
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c.ClearMessageLine()
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if err != nil {
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c.SetMessage(err.Error(), true)
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@ -1051,6 +1087,67 @@ func (c *client) handleWeb(u Url) {
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}
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}
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func (c *client) find(s string) error {
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c.PageState.History[c.PageState.Position].SearchTerm = s
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c.PageState.History[c.PageState.Position].FindText()
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if s == "" {
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return nil
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}
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if len(c.PageState.History[c.PageState.Position].FoundLinkLines) == 0 {
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return fmt.Errorf("No text matching %q was found", s)
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}
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return nil
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}
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func (c *client) NextSearchItem(dir int) error {
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page := c.PageState.History[c.PageState.Position]
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if len(page.FoundLinkLines) == 0 {
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return fmt.Errorf("The search is over before it has begun")
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}
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c.PageState.History[c.PageState.Position].SearchIndex += dir
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page.SearchIndex += dir
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if page.SearchIndex < 0 {
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c.PageState.History[c.PageState.Position].SearchIndex = 0
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page.SearchIndex = 0
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}
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if page.SearchIndex >= len(page.FoundLinkLines) {
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c.PageState.History[c.PageState.Position].SearchIndex = len(page.FoundLinkLines) - 1
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return fmt.Errorf("The search path goes no further")
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} else if page.SearchIndex < 0 {
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c.PageState.History[c.PageState.Position].SearchIndex = 0
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return fmt.Errorf("You are at the beginning of the search path")
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}
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diff := page.FoundLinkLines[page.SearchIndex] - page.ScrollPosition
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c.ScrollForSearch(diff)
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c.Draw()
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return nil
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}
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func (c *client) ScrollForSearch(amount int) {
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var percentRead int
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page := c.PageState.History[c.PageState.Position]
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bottom := len(page.WrappedContent) - c.Height + 3 // 3 for the three bars: top, msg, bottom
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newScrollPosition := page.ScrollPosition + amount
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if newScrollPosition < 0 {
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newScrollPosition = 0
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} else if newScrollPosition > bottom {
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newScrollPosition = bottom
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}
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c.PageState.History[c.PageState.Position].ScrollPosition = newScrollPosition
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if len(page.WrappedContent) < c.Height-3 {
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percentRead = 100
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} else {
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percentRead = int(float32(newScrollPosition+c.Height-3) / float32(len(page.WrappedContent)) * 100.0)
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}
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c.FootBar.SetPercentRead(percentRead)
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c.Draw()
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}
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//------------------------------------------------\\
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// + + + F U N C T I O N S + + + \\
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//--------------------------------------------------\\
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@ -96,11 +96,11 @@ func Getch() rune {
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return char
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}
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func GetLine() (string, error) {
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func GetLine(prefix string) (string, error) {
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SetLineMode()
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reader := bufio.NewReader(os.Stdin)
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fmt.Print(": ")
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fmt.Print(prefix)
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text, err := reader.ReadString('\n')
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if err != nil {
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return "", err
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49
page.go
49
page.go
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@ -1,6 +1,7 @@
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package main
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import (
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"fmt"
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"strings"
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)
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@ -17,6 +18,9 @@ type Page struct {
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Links []string
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Location Url
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ScrollPosition int
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FoundLinkLines []int
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SearchTerm string
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SearchIndex int
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}
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//------------------------------------------------\\
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@ -95,7 +99,7 @@ func (p *Page) WrapContent(width int, color bool) {
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}
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continue
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} else {
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if counter < width {
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if counter <= width {
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content.WriteRune(ch)
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counter++
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} else {
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@ -112,6 +116,47 @@ func (p *Page) WrapContent(width int, color bool) {
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}
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p.WrappedContent = strings.Split(content.String(), "\n")
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p.HighlightFoundText()
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}
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func (p *Page) HighlightFoundText() {
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if p.SearchTerm == "" {
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return
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}
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for i, ln := range p.WrappedContent {
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found := strings.Index(ln, p.SearchTerm)
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if found < 0 {
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continue
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}
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format := "\033[7m%s\033[27m"
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if bombadillo.Options["theme"] == "inverse" {
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format = "\033[27m%s\033[7m"
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}
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ln = strings.ReplaceAll(ln, p.SearchTerm, fmt.Sprintf(format, p.SearchTerm))
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p.WrappedContent[i] = ln
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}
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}
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func (p *Page) FindText() {
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p.FoundLinkLines = make([]int, 0, 10)
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s := p.SearchTerm
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p.SearchIndex = 0
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if s == "" {
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return
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}
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format := "\033[7m%s\033[27m"
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if bombadillo.Options["theme"] == "inverse" {
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format = "\033[27m%s\033[7m"
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}
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for i, ln := range p.WrappedContent {
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found := strings.Index(ln, s)
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if found < 0 {
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continue
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}
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ln = strings.ReplaceAll(ln, s, fmt.Sprintf(format, s))
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p.WrappedContent[i] = ln
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p.FoundLinkLines = append(p.FoundLinkLines, i)
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}
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}
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//------------------------------------------------\\
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@ -120,6 +165,6 @@ func (p *Page) WrapContent(width int, color bool) {
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// MakePage returns a Page struct with default values
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func MakePage(url Url, content string, links []string) Page {
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p := Page{make([]string, 0), content, links, url, 0}
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p := Page{make([]string, 0), content, links, url, 0, make([]int, 0), "", 0}
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return p
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}
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