flynx/colors.js
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Merge pull request #8 from nicoreed/master

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A handful fixes
This commit is contained in:
Marak Squires 2011-07-18 16:09:02 -07:00
commit 4a63717497
2 changed files with 75 additions and 25 deletions
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85
colors.js
View File

@ -23,14 +23,24 @@ THE SOFTWARE.
*/
exports.mode = "console";
// prototypes the string object to have additional method calls that add terminal colors
var addProperty = function (color, func) {
exports[color] = function(str) {
return func.apply(str);
};
String.prototype.__defineGetter__(color, func);
}
var isHeadless = (typeof module !== 'undefined');
['bold', 'underline', 'italic', 'inverse', 'grey', 'yellow', 'red', 'green', 'blue', 'white', 'cyan', 'magenta'].forEach(function (style) {
['bold', 'underline', 'italic', 'inverse', 'grey', 'black', 'yellow', 'red', 'green', 'blue', 'white', 'cyan', 'magenta'].forEach(function (style) {
// __defineGetter__ at the least works in more browsers
// http://robertnyman.com/javascript/javascript-getters-setters.html
// Object.defineProperty only works in Chrome
String.prototype.__defineGetter__(style, function () {
addProperty(style, function () {
return isHeadless ?
stylize(this, style) : // for those running in node (headless environments)
this.replace(/( )/, '$1'); // and for those running in browsers:
@ -40,7 +50,7 @@ var isHeadless = (typeof module !== 'undefined');
// prototypes string with method "rainbow"
// rainbow will apply a the color spectrum to a string, changing colors every letter
String.prototype.__defineGetter__('rainbow', function () {
addProperty('rainbow', function () {
if (!isHeadless) {
return this.replace(/( )/, '$1');
}
@ -59,30 +69,53 @@ String.prototype.__defineGetter__('rainbow', function () {
});
function stylize(str, style) {
var styles = {
//styles
'bold' : [1, 22],
'italic' : [3, 23],
'underline' : [4, 24],
'inverse' : [7, 27],
//grayscale
'white' : [37, 39],
'grey' : [90, 39],
'black' : [90, 39],
//colors
'blue' : [34, 39],
'cyan' : [36, 39],
'green' : [32, 39],
'magenta' : [35, 39],
'red' : [31, 39],
'yellow' : [33, 39]
};
return '\033[' + styles[style][0] + 'm' + str +
'\033[' + styles[style][1] + 'm';
if (exports.mode == 'console') {
var styles = {
//styles
'bold' : ['\033[1m', '\033[22m'],
'italic' : ['\033[3m', '\033[23m'],
'underline' : ['\033[4m', '\033[24m'],
'inverse' : ['\033[7m', '\033[27m'],
//grayscale
'white' : ['\033[37m', '\033[39m'],
'grey' : ['\033[90m', '\033[39m'],
'black' : ['\033[30m', '\033[39m'],
//colors
'blue' : ['\033[34m', '\033[39m'],
'cyan' : ['\033[36m', '\033[39m'],
'green' : ['\033[32m', '\033[39m'],
'magenta' : ['\033[35m', '\033[39m'],
'red' : ['\033[31m', '\033[39m'],
'yellow' : ['\033[33m', '\033[39m']
};
} else if (exports.mode == 'browser') {
var styles = {
//styles
'bold' : ['<b>', '</b>'],
'italic' : ['<i>', '</i>'],
'underline' : ['<u>', '</u>'],
'inverse' : ['<span style="background-color:black;color:white;">', '</span>'],
//grayscale
'white' : ['<span style="color:white;">', '</span>'],
'grey' : ['<span style="color:grey;">', '</span>'],
'black' : ['<span style="color:black;">', '</span>'],
//colors
'blue' : ['<span style="color:blue;">', '</span>'],
'cyan' : ['<span style="color:cyan;">', '</span>'],
'green' : ['<span style="color:green;">', '</span>'],
'magenta' : ['<span style="color:magenta;">', '</span>'],
'red' : ['<span style="color:red;">', '</span>'],
'yellow' : ['<span style="color:yellow;">', '</span>']
};
} else {
console.log('unsupported mode, try "browser" or "console"');
}
return styles[style][0] + str + styles[style][1];
};
// don't summon zalgo
String.prototype.__defineGetter__('zalgo', function () {
addProperty('zalgo', function () {
return zalgo(this);
});
@ -189,3 +222,7 @@ function zalgo(text, options) {
};
return heComes(text);
}
addProperty('stripColors', function() {
return ("" + this).replace(/\u001b\[\d+m/g,'');
});

15
example.js
View File

@ -1,7 +1,20 @@
var sys = require('sys');
var colors = require('./colors');
//colors.mode = "browser";
var test = colors.red("hopefully colorless output");
sys.puts('Rainbows are fun!'.rainbow);
sys.puts('So '.italic + 'are'.underline + ' styles! '.bold + 'inverse'.inverse); // styles not widely supported
sys.puts('Chains are also cool.'.bold.italic.underline.red); // styles not widely supported
// sys.puts('zalgo time!'.zalgo);
//sys.puts('zalgo time!'.zalgo);
sys.puts(test.stripColors);
sys.puts("a".grey + " b".black);
sys.puts(colors.rainbow('Rainbows are fun!'));
sys.puts(colors.italic('So ') + colors.underline('are') + colors.bold(' styles! ') + colors.inverse('inverse')); // styles not widely supported
sys.puts(colors.bold(colors.italic(colors.underline(colors.red('Chains are also cool.'))))); // styles not widely supported
//sys.puts(colors.zalgo('zalgo time!'));
sys.puts(colors.stripColors(test));
sys.puts(colors.grey("a") + colors.black(" b"));