decode-prompt

parse bash $PS1 escape characters

example

var decode = require('../');
var s = decode(process.argv[2], { env: process.env });
console.log(s);

$ node example/prompt.js '\w \$ '
~/projects/decode-prompt $
$ 

substack : decode-prompt $ node example/prompt.js "<$PS1>"
<substack : decode-prompt $ >
substack : decode-prompt $ 

methods

var decode = require('decode-prompt')

decode(str, opts)

Return the decoded bash $PS1 string str.

• opts.env - environment variables to use. $NAME and ${NAME} are decoded and some options use opts.env as a fallback default value.
• opts.now - date for all the time functions to use, default: new Date
• opts.hostname - the os.hostname() value to use, otherwise os.hostname()
• opts.jobs - number of jobs currently managed by the shell, default: 0
• opts.tty - the shell's tty name (like the tty command gives), default: -1
• opts.shell - the current $SHELL, default: opts.env.SHELL.
• opts.user - username to use, default: opts.env.USER.
• opts.version - version of the shell (bash), default: '0.0.0'
• opts.cwd - current working directory, default: opts.env.PWD || process.cwd()
• opts.dirtrim - number of directories to trim output at with an ellipsis, default: opts.env.DIRTRIM || 0
• opts.history - history number, default: 0
• opts.command - command number, default: 0
• opts.uid - uid, default: opts.env.UID || process.getuid()

install

With npm do:

npm install decode-prompt

license

MIT