begin 256 color implementation

src/hwylterm/bbansi.nim

@@ -5,10 +5,8 @@
 ]##
 
 import std/[os, sequtils, strformat, strutils]
-
-import ./bbansi/[styles, utils]
+import ./bbansi/[styles, utils, colors]
 export utils
-# export bbReset
 
 type
   BbSpan* = object
@@ -118,6 +116,9 @@ proc bb*(s: string): BbString =
 proc bb*(s: string, style: string): BbString =
   bb("[" & style & "]" & s & "[/" & style & "]")
 
+proc bb*(s: string, style: Color256): BbString =
+  bb(s, $style)
+
 proc `&`*(x: BbString, y: string): BbString =
   result = x
   result.raw &= y

src/hwylterm/bbansi/colors.nim

@@ -1,6 +1,7 @@
 import std/[parseutils, strutils]
 
 type
+  Color256* = range[0..255]
   ColorRgb* = object
     red, green, blue: int
   ColorHex* = object

src/hwylterm/bbansi/styles.nim

@@ -18,28 +18,3 @@ func toStyle*(a: BbStyleAbbr): BbStyle =
   of U: Underline
 
 const bbReset* = "\e[0m"
-#   bbStyles* = {
-#     "reset": "0",
-#     "bold": "1",
-#     "b": "1",
-#     "faint": "2",
-#     "italic": "3",
-#     "i": "3",
-#     "underline": "4",
-#     "u": "4",
-#     "blink": "5",
-#     "reverse": "7",
-#     "conceal": "8",
-#     "strike": "9",
-#   }.toTable
-#
-#   bbColors* = {
-#     "black": "0",
-#     "red": "1",
-#     "green": "2",
-#     "yellow": "3",
-#     "blue": "4",
-#     "magenta": "5",
-#     "cyan": "6",
-#     "white": "7",
-#   }.toTable

src/hwylterm/bbansi/utils.nim

@@ -1,5 +1,6 @@
 import std/[
-  enumutils, os, strutils, terminal, sequtils]
+  enumutils, os, strutils, terminal, sequtils
+]
 import ./[styles, colors]
 
 type
@@ -28,9 +29,12 @@ func toCode(color: ColorXterm): string = "38;5;" & $ord(color)
 func toBgCode(color: ColorXterm): string = "48;5;" & $ord(color)
 func toCode(c: ColorRgb): string = "38;2;" & $c
 func toBgCode(c: ColorRgb): string = "48:2;" & $c
+func toCode(c: Color256): string = "38;5;" & $c
+func toBgCode(c: Color256): string = "48;5;" & $c
 
 const ColorXTermNames = ColorXterm.items().toSeq().mapIt(($it).toLowerAscii().capitalizeAscii())
 const BbStyleNames = BbStyle.items().toSeq().mapIt(($it).toLowerAscii().capitalizeAscii())
+const ColorDigitStrings = (1..255).toSeq().mapIt($it)
 
 func isHex(s: string): bool =
   (s.startswith "#") and (s.len == 7)
@@ -51,14 +55,20 @@ proc toAnsiCode*(s: string): string =
     styles = s.splitWhitespace()
   for style in styles:
     let normalizedStyle = style.normStyle
+
     if normalizedStyle in ["B", "I", "U"]:
       codes.add parseEnum[BbStyleAbbr](normalizedStyle).toCode()
     elif normalizedStyle in BbStyleNames:
       codes.add parseEnum[BbStyle](normalizedStyle).toCode()
-    elif normalizedStyle in ColorXtermNames and bbMode == On:
+
+    if not (bbMode == On): continue
+
+    if normalizedStyle in ColorXtermNames:
       codes.add parseEnum[ColorXterm](normalizedStyle).toCode()
     elif normalizedStyle.isHex():
       codes.add  normalizedStyle.hexToRgb.toCode()
+    elif normalizedStyle in ColorDigitStrings:
+      codes.add parseInt(normalizedStyle).toCode()
     else:
       when defined(debugBB): echo "unknown style: " & normalizedStyle
 
@@ -68,6 +78,8 @@ proc toAnsiCode*(s: string): string =
       codes.add parseEnum[ColorXTerm](normalizedBgStyle).toBgCode()
     elif normalizedBgStyle.isHex():
       codes.add normalizedBgStyle.hexToRgb().toBgCode()
+    elif normalizedBgStyle in ColorDigitStrings:
+      codes.add parseInt(normalizedBgStyle).toCode()
     else:
       when defined(debugBB): echo "unknown bg style: " & normalizedBgStyle
 

tests/tbbansi.nim

@@ -51,6 +51,7 @@ suite "basic":
   test "style full":
     check "[red]Red[/red]".bb == bb("Red", "red")
     check "[b][yellow]not yellow[/][/b]".bb == bb("[yellow]not yellow[/]", "b")
+    check "[9]color 9[/9]".bb == bb("color 9", 9) # syntax will change to [color(9)]
 
   test "escape":
     check bbEscape("[info] brackets") == "[[info] brackets"