146 lines
4.4 KiB
Markdown
146 lines
4.4 KiB
Markdown
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# Console Control Strings
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A library of cross-platform tested terminal/console command strings for
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doing things like color and cursor positioning. This is a subset of both
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ansi and vt100. All control codes included work on both Windows & Unix-like
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OSes, except where noted.
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## Usage
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```js
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var consoleControl = require('console-control-strings')
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console.log(consoleControl.color('blue','bgRed', 'bold') + 'hi there' + consoleControl.color('reset'))
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process.stdout.write(consoleControl.goto(75, 10))
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```
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## Why Another?
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There are tons of libraries similar to this one. I wanted one that was:
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1. Very clear about compatibility goals.
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2. Could emit, for instance, a start color code without an end one.
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3. Returned strings w/o writing to streams.
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4. Was not weighed down with other unrelated baggage.
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## Functions
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### var code = consoleControl.up(_num = 1_)
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Returns the escape sequence to move _num_ lines up.
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### var code = consoleControl.down(_num = 1_)
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Returns the escape sequence to move _num_ lines down.
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### var code = consoleControl.forward(_num = 1_)
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Returns the escape sequence to move _num_ lines righ.
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### var code = consoleControl.back(_num = 1_)
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Returns the escape sequence to move _num_ lines left.
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### var code = consoleControl.nextLine(_num = 1_)
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Returns the escape sequence to move _num_ lines down and to the beginning of
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the line.
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### var code = consoleControl.previousLine(_num = 1_)
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Returns the escape sequence to move _num_ lines up and to the beginning of
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the line.
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### var code = consoleControl.eraseData()
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Returns the escape sequence to erase everything from the current cursor
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position to the bottom right of the screen. This is line based, so it
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erases the remainder of the current line and all following lines.
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### var code = consoleControl.eraseLine()
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Returns the escape sequence to erase to the end of the current line.
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### var code = consoleControl.goto(_x_, _y_)
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Returns the escape sequence to move the cursor to the designated position.
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Note that the origin is _1, 1_ not _0, 0_.
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### var code = consoleControl.gotoSOL()
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Returns the escape sequence to move the cursor to the beginning of the
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current line. (That is, it returns a carriage return, `\r`.)
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### var code = consoleControl.beep()
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Returns the escape sequence to cause the termianl to beep. (That is, it
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returns unicode character `\x0007`, a Control-G.)
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### var code = consoleControl.hideCursor()
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Returns the escape sequence to hide the cursor.
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### var code = consoleControl.showCursor()
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Returns the escape sequence to show the cursor.
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### var code = consoleControl.color(_colors = []_)
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### var code = consoleControl.color(_color1_, _color2_, _…_, _colorn_)
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Returns the escape sequence to set the current terminal display attributes
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(mostly colors). Arguments can either be a list of attributes or an array
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of attributes. The difference between passing in an array or list of colors
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and calling `.color` separately for each one, is that in the former case a
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single escape sequence will be produced where as in the latter each change
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will have its own distinct escape sequence. Each attribute can be one of:
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* Reset:
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* **reset** – Reset all attributes to the terminal default.
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* Styles:
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* **bold** – Display text as bold. In some terminals this means using a
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bold font, in others this means changing the color. In some it means
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both.
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* **italic** – Display text as italic. This is not available in most Windows terminals.
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* **underline** – Underline text. This is not available in most Windows Terminals.
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* **inverse** – Invert the foreground and background colors.
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* **stopBold** – Do not display text as bold.
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* **stopItalic** – Do not display text as italic.
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* **stopUnderline** – Do not underline text.
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* **stopInverse** – Do not invert foreground and background.
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* Colors:
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* **white**
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* **black**
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* **blue**
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* **cyan**
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* **green**
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* **magenta**
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* **red**
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* **yellow**
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* **grey** / **brightBlack**
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* **brightRed**
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* **brightGreen**
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* **brightYellow**
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* **brightBlue**
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* **brightMagenta**
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* **brightCyan**
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* **brightWhite**
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* Background Colors:
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* **bgWhite**
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* **bgBlack**
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* **bgBlue**
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* **bgCyan**
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* **bgGreen**
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* **bgMagenta**
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* **bgRed**
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* **bgYellow**
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* **bgGrey** / **bgBrightBlack**
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* **bgBrightRed**
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* **bgBrightGreen**
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* **bgBrightYellow**
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* **bgBrightBlue**
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* **bgBrightMagenta**
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* **bgBrightCyan**
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* **bgBrightWhite**
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