From 832290a0d425aa027c279a4a96a70550a2fdfff2 Mon Sep 17 00:00:00 2001
From: Ruben Bridgewater <ruben@bridgewater.de>
Date: Tue, 26 Nov 2019 00:32:16 +0100
Subject: util: add more predefined color codes to inspect.colors
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This adds most commonly used ANSI color codes to
`util.inspect.colors`.

PR-URL: https://github.com/nodejs/node/pull/30659
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
---
 lib/internal/util/inspect.js | 86 ++++++++++++++++++++++++++++++++++++++------
 1 file changed, 75 insertions(+), 11 deletions(-)

(limited to 'lib')

diff --git a/lib/internal/util/inspect.js b/lib/internal/util/inspect.js
index 3664c15484..7005911621 100644
--- a/lib/internal/util/inspect.js
+++ b/lib/internal/util/inspect.js
@@ -269,23 +269,86 @@ ObjectDefineProperty(inspect, 'defaultOptions', {
   }
 });
 
-// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
+// Set Graphics Rendition http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
+// Each color consists of an array with the color code as first entry and the
+// reset code as second entry.
+const defaultFG = 39;
+const defaultBG = 49;
 inspect.colors = ObjectAssign(ObjectCreate(null), {
+  reset: [0, 0],
   bold: [1, 22],
+  dim: [2, 22], // Alias: faint
   italic: [3, 23],
   underline: [4, 24],
-  inverse: [7, 27],
-  white: [37, 39],
-  grey: [90, 39],
-  black: [30, 39],
-  blue: [34, 39],
-  cyan: [36, 39],
-  green: [32, 39],
-  magenta: [35, 39],
-  red: [31, 39],
-  yellow: [33, 39]
+  blink: [5, 25],
+  // Swap forground and background colors
+  inverse: [7, 27], // Alias: swapcolors, swapColors
+  hidden: [8, 28], // Alias: conceal
+  strikethrough: [9, 29], // Alias: strikeThrough, crossedout, crossedOut
+  doubleunderline: [21, 24], // Alias: doubleUnderline
+  black: [30, defaultFG],
+  red: [31, defaultFG],
+  green: [32, defaultFG],
+  yellow: [33, defaultFG],
+  blue: [34, defaultFG],
+  magenta: [35, defaultFG],
+  cyan: [36, defaultFG],
+  white: [37, defaultFG],
+  bgBlack: [40, defaultBG],
+  bgRed: [41, defaultBG],
+  bgGreen: [42, defaultBG],
+  bgYellow: [43, defaultBG],
+  bgBlue: [44, defaultBG],
+  bgMagenta: [45, defaultBG],
+  bgCyan: [46, defaultBG],
+  bgWhite: [47, defaultBG],
+  framed: [51, 54],
+  overlined: [53, 55],
+  gray: [90, defaultFG], // Alias: grey, blackBright
+  redBright: [91, defaultFG],
+  greenBright: [92, defaultFG],
+  yellowBright: [93, defaultFG],
+  blueBright: [94, defaultFG],
+  magentaBright: [95, defaultFG],
+  cyanBright: [96, defaultFG],
+  whiteBright: [97, defaultFG],
+  bgGray: [100, defaultBG], // Alias: bgGrey, bgBlackBright
+  bgRedBright: [101, defaultBG],
+  bgGreenBright: [102, defaultBG],
+  bgYellowBright: [103, defaultBG],
+  bgBlueBright: [104, defaultBG],
+  bgMagentaBright: [105, defaultBG],
+  bgCyanBright: [106, defaultBG],
+  bgWhiteBright: [107, defaultBG],
 });
 
+function defineColorAlias(target, alias) {
+  ObjectDefineProperty(inspect.colors, alias, {
+    get() {
+      return this[target];
+    },
+    set(value) {
+      this[target] = value;
+    },
+    configurable: true,
+    enumerable: false
+  });
+}
+
+defineColorAlias('gray', 'grey');
+defineColorAlias('gray', 'blackBright');
+defineColorAlias('bgGray', 'bgGrey');
+defineColorAlias('bgGray', 'bgBlackBright');
+defineColorAlias('dim', 'faint');
+defineColorAlias('strikethrough', 'crossedout');
+defineColorAlias('strikethrough', 'strikeThrough');
+defineColorAlias('strikethrough', 'crossedOut');
+defineColorAlias('hidden', 'conceal');
+defineColorAlias('inverse', 'swapColors');
+defineColorAlias('inverse', 'swapcolors');
+defineColorAlias('doubleunderline', 'doubleUnderline');
+
+// TODO(BridgeAR): Add function style support for more complex styles.
 // Don't use 'blue' not visible on cmd.exe
 inspect.styles = ObjectAssign(ObjectCreate(null), {
   special: 'cyan',
@@ -298,6 +361,7 @@ inspect.styles = ObjectAssign(ObjectCreate(null), {
   symbol: 'green',
   date: 'magenta',
   // "name": intentionally not styling
+  // TODO(BridgeAR): Highlight regular expressions properly.
   regexp: 'red',
   module: 'underline'
 });
-- 
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