Added italics and strikethrough to style attributes. Resolves #457

demos/presentation/colors.go

@@ -7,7 +7,7 @@ import (
 	"github.com/rivo/tview"
 )
 
-const colorsText = `You can use color tags almost everywhere to partially change the color of a string. Simply put a color name or hex string in square brackets to change the following characters' color. H[green]er[white]e i[yellow]s a[darkcyan]n ex[red]amp[white]le. The [black:red]tags [black:green]look [black:yellow]like [::u]this: [blue:yellow:u[] [#00ff00[]`
+const colorsText = `You can use color tags almost everywhere to partially change the color of a string. Simply put a color name or hex string in square brackets to change [::s]all[::-]the following characters' color. H[green]er[white]e i[yellow]s a[darkcyan]n ex[red]amp[white]le. [::i]The [black:red]tags [black:green]look [black:yellow]like [::u]this: [blue:yellow:u[] [#00ff00[]`
 
 // Colors demonstrates how to use colors.
 func Colors(nextSlide func()) (title string, content tview.Primitive) {

doc.go

@@ -96,9 +96,11 @@ terminal):
 
   l: blink
   b: bold
+  i: italic
   d: dim
   r: reverse (switch foreground and background color)
   u: underline
+  s: strike-through
 
 Examples:
 

table.go

@@ -637,7 +637,7 @@ func (t *Table) GetOffset() (row, column int) {
 // are evaluated. When true, all rows in the table are evaluated.
 //
 // Set this flag to true to avoid shifting column widths when the table is
-// scrolled. (May be slower for large tables.)
+// scrolled. (May come with a performance penalty for large tables.)
 //
 // Use with caution on very large tables, especially those not backed by the
 // default TableContent data structure.

util.go

@@ -20,7 +20,7 @@ const (
 
 // Common regular expressions.
 var (
-	colorPattern     = regexp.MustCompile(`\[([a-zA-Z]+|#[0-9a-zA-Z]{6}|\-)?(:([a-zA-Z]+|#[0-9a-zA-Z]{6}|\-)?(:([lbdru]+|\-)?)?)?\]`)
+	colorPattern     = regexp.MustCompile(`\[([a-zA-Z]+|#[0-9a-zA-Z]{6}|\-)?(:([a-zA-Z]+|#[0-9a-zA-Z]{6}|\-)?(:([lbidrus]+|\-)?)?)?\]`)
 	regionPattern    = regexp.MustCompile(`\["([a-zA-Z0-9_,;: \-\.]*)"\]`)
 	escapePattern    = regexp.MustCompile(`\[([a-zA-Z0-9_,;: \-\."#]+)\[(\[*)\]`)
 	nonEscapePattern = regexp.MustCompile(`(\[[a-zA-Z0-9_,;: \-\."#]+\[*)\]`)
@@ -124,11 +124,12 @@ func overlayStyle(style tcell.Style, fgColor, bgColor, attributes string) tcell.
 	}
 
 	if attributes == "-" {
-		style = style.Bold(defAttr&tcell.AttrBold > 0)
-		style = style.Blink(defAttr&tcell.AttrBlink > 0)
-		style = style.Reverse(defAttr&tcell.AttrReverse > 0)
-		style = style.Underline(defAttr&tcell.AttrUnderline > 0)
-		style = style.Dim(defAttr&tcell.AttrDim > 0)
+		style = style.Bold(defAttr&tcell.AttrBold > 0).
+			Italic(defAttr&tcell.AttrItalic > 0).
+			Blink(defAttr&tcell.AttrBlink > 0).
+			Reverse(defAttr&tcell.AttrReverse > 0).
+			Underline(defAttr&tcell.AttrUnderline > 0).
+			Dim(defAttr&tcell.AttrDim > 0)
 	} else if attributes != "" {
 		style = style.Normal()
 		for _, flag := range attributes {
@@ -137,12 +138,16 @@ func overlayStyle(style tcell.Style, fgColor, bgColor, attributes string) tcell.
 				style = style.Blink(true)
 			case 'b':
 				style = style.Bold(true)
+			case 'i':
+				style = style.Italic(true)
 			case 'd':
 				style = style.Dim(true)
 			case 'r':
 				style = style.Reverse(true)
 			case 'u':
 				style = style.Underline(true)
+			case 's':
+				style = style.StrikeThrough(true)
 			}
 		}
 	}