!Build statusbuild-imagebuild-url
!Tests coveragecov-imagecov-url
!npm versionnpm-imagenpm-url
Output colored text:
Styles can be mixed:
Styled text can be mixed with unstyled:
Styled text can be nested:
Best way is to predefine needed stylings and then use it:
Note: No colors or styles are output when
Supported are all ANSI colors and styles:
Usage:
Color table:
Supported
cli-color
Yet another colors and formatting for the console solution
Colors, formatting and other goodies for the console. This package won't mess with built-ins and provides neat way to predefine formatting patterns, see below.Installation
$ npm install cli-color
Usage
Usage:var clc = require("cli-color");
Output colored text:
console.log(clc.red("Text in red"));
Styles can be mixed:
console.log(clc.red.bgWhite.underline("Underlined red text on white background."));
Styled text can be mixed with unstyled:
console.log(clc.red("red") + " plain " + clc.blue("blue"));
Styled text can be nested:
console.log(clc.red("red " + clc.blue("blue") + " red"));
Best way is to predefine needed stylings and then use it:
var error = clc.red.bold;
var warn = clc.yellow;
var notice = clc.blue;
console.log(error("Error!"));
console.log(warn("Warning"));
console.log(notice("Notice"));
Note: No colors or styles are output when
NO_COLOR
env var is setSupported are all ANSI colors and styles:
Styles
Styles will display correctly if font used in your console supports them.- bold
- italic
- underline
- blink
- inverse
- strike
Colors
Foreground | Background |
---|
Bright variants
Foreground | Background |
---|
xTerm colors (256 colors table)
Not supported on Windows and some terminals. However if used in not supported environment, the closest color from basic (16 colors) palette is chosen.Usage:
var msg = clc.xterm(202).bgXterm(236);
console.log(msg("Orange text on dark gray background"));
Color table:
Reset
Terminal can be cleared withclc.reset
process.stdout.write(clc.reset);
Erase
clc.erase.screen
Entire screenprocess.stdout.write(clc.erase.screen);
clc.erase.screenLeft
Left portion of a screenprocess.stdout.write(clc.erase.screenLeft);
clc.erase.screenRight
Right portion of a screenprocess.stdout.write(clc.erase.screenRight);
clc.erase.line
Current lineprocess.stdout.write(clc.erase.line);
clc.erase.lineRight
Right portion of current lineprocess.stdout.write(clc.erase.lineRight);
clc.erase.lineLeft
Left portion of current lineprocess.stdout.write(clc.erase.lineLeft);
Move around functions
clc.move(x, y)
Move cursor x columns and y rows away. Values can be positive or negative, e.g.:process.stdout.write(clc.move(-2, -2)); // Move cursors two columns and two rows back
clc.move.to(x, y)
Absolute move. Sets cursor position at x column and y rowprocess.stdout.write(clc.move.to(0, 0)); // Move cursor to first row and first column in terminal window
clc.move.up(n)
Move cursor up n rowsprocess.stdout.write(clc.move.up(2));
clc.move.down(n)
Move cursor down n rowsprocess.stdout.write(clc.move.down(2));
clc.move.right(n)
Move cursor right n columnsprocess.stdout.write(clc.move.right(2));
clc.move.left(n)
Move cursor left n columnsprocess.stdout.write(clc.move.left(2));
clc.move.lines(n)
Move cursorn
lines forward if n
is positive, otherwise n
lines backward, and place it at line beginningprocess.stdout.write(clc.move.lines(2));
clc.move.top
Move cursor to top of a screenprocess.stdout.write(clc.move.top);
clc.move.bottom
Move cursor to bottom of a screenprocess.stdout.write(clc.move.bottom);
clc.move.lineBegin
Move cursor to begin of a lineprocess.stdout.write(clc.move.lineBegin);
clc.move.lineEnd
Move cursor to end of a lineprocess.stdout.write(clc.move.lineEnd);
Terminal characteristics
clc.windowSize.width
Returns terminal widthclc.windowSize.height
Returns terminal heightAdditional functionalities
clc.slice(str, begin, end)
Slice provided string with preservation of eventual ANSI formattingvar clc = require("cli-color");
var str = clc.bold("foo") + "bar" + clc.red("elo");
var sliced = clc.slice(str, 1, 7); // Same as: clc.bold('oo') + 'bar' + clc.red('e')
clc.strip(formatedText)
Strips ANSI formatted string to plain textvar ansiStrip = require("cli-color/strip");
var plain = ansiStrip(formatted);
clc.getStrippedLength(str)
Get actual length of ANSI-formatted stringvar clc = require("cli-color");
var str = clc.bold("foo") + "bar" + clc.red("elo");
clc.getStrippedLength(str); // 9
clc.art(text, styleConf)
Create a text-graphical art. WithinstyleConf
, string replacements needs to be defined, which are then used to convert text
to styled graphical text.var text = ".........\n" + ". Hello .\n" + ".........\n";
var style = { ".": clc.yellowBright("X") };
process.stdout.write(clc.art(text, style));
clc.columns(data, options)
Outputs aligned table of columns.data
is expected to be an array (or other iterable structure) of rows, where each row is also an array (or other iterable structure) of content to display.Supported
options
:sep
: Custom colums separator (defaults to|
)columns
: Per column customizations, as e.g.[{ align: 'right' }, null, { align: 'left' }]
:
align
: Possible options: 'left'
, 'right
(efaults to 'left'
)var clc = require("cli-color");
process.stdout.write(
clc.columns([
[clc.bold("First Name"), clc.bold("Last Name"), clc.bold("Age")],
["John", "Doe", 34],
["Martha", "Smith", 20],
["Jan", "Kowalski", 30]
])
);
/* Outputs:
First Name | Last Name | Age
John | Doe | 34
Martha | Smith | 20
Jan | Kowalski | 30
*/
throbber(write, interval, format)
Writes throbber string to write function at given interval. Optionally throbber output can be formatted with given format functionvar setupThrobber = require("cli-color/throbber");
var throbber = setupThrobber(function (str) { process.stdout.write(str); }, 200);
throbber.start();
// at any time you can stop/start throbber
throbber.stop();
Tests
$ npm test
Security contact information
To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure.Contributors
- @rentalhost (David Rodrigues)
clc.art
module, and significant improvements to tests coverage
- Implementation of sophistcated clc.slice
functionality, and introduction of clc.getStrippedLength
utility<b>
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</b>
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