ThunderNetworkRaD/readline-sync
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Add options.noTrim.

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anseki 2015-01-27 01:11:25 +09:00
parent ddcef20649
commit e9714a9a0a
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2
LICENSE-MIT
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@ -1,4 +1,4 @@
Copyright (c) 2014 anseki
Copyright (c) 2015 anseki
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation

139
README.md
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@ -7,8 +7,15 @@ The interface is used with `process.stdin` and `process.stdout` in order to acce
```js
var readlineSync = require('readline-sync');
var answer = readlineSync.question('What is your favorite food? :');
console.log('Oh, so your favorite food is ' + answer);
var userName = readlineSync.question('May I have your name? :'); // Wait for user's response.
var favFood = readlineSync.question('Hi ' + userName + '! What is your favorite food? :');
console.log('Oh, ' + userName + ' likes ' + favFood + '!');
```
```shell
May I have your name? :AnSeki
Hi AnSeki! What is your favorite food? :chocolate
Oh, AnSeki likes chocolate!
```
## Installation
@ -17,64 +24,95 @@ console.log('Oh, so your favorite food is ' + answer);
npm install readline-sync
```
## Usage
## Methods
### setPrompt
```js
currentValue = readlineSync.setPrompt([prompt])
```
Sets the prompt, for example when you run `node` on the command line, you see `> `, which is node's prompt.
`prompt` may be string, or may not be (e.g. number, Date, Object, etc.). This is converted to string (i.e. `toString` method is called) before it is displayed every time.
For example: `[foo-directory]#` like a bash
```js
// Object that has toString method.
readlineSync.setPrompt({toString: function() {
return '[' + require('path').basename(process.cwd()) + ']# ';
}})
```
### prompt
```js
line = readlineSync.prompt([options])
```
Readies readline for input from the user, putting the current `setPrompt` options on a new line, giving the user a new spot to write.
If `{noEchoBack: true}` is specified to `options`, echo back is avoided. It is used to hide the secret text (e.g. password) which is typed by user on screen.
### question
### `question`
```js
line = readlineSync.question([query[, options]])
```
Displays the `query` to the user, and then returns the user's response after it has been typed.
`query` may be string, or may not be (e.g. number, Date, Object, etc.). This is converted to string (i.e. `toString` method is called) before it is displayed.
If `{noEchoBack: true}` is specified to `options`, echo back is avoided. It is used to hide the secret text (e.g. password) which is typed by user on screen.
### setEncoding
The `query` may be string, or may not be (e.g. number, Date, Object, etc.). This is converted to string (i.e. `toString` method is called) before it is displayed every time.
#### `noEchoBack`
If `{noEchoBack: true}` is specified to `options`, echo back is avoided. It is used to hide the secret text (e.g. password) which is typed by user on screen.
For example:
```js
currentValue = readlineSync.setEncoding([encoding])
password = readlineSync.question('PASSWORD :', {noEchoBack: true});
console.log('Login ...');
```
Set the encoding method of input (user's response) and output (`prompt` and `question`). Defaults to 'utf8'.
The typed text is not shown on screen.
### setPrint
```shell
PASSWORD :
Login ...
```
#### `noTrim`
By default, the leading and trailing white spaces are removed from typed text. If `{noTrim: true}` is specified to `options`, those are not removed.
### `prompt`
```js
line = readlineSync.prompt([options])
```
Displays the current prompt (See `setPrompt` method) to the user, and then returns the user's response after it has been typed.
#### `noEchoBack`
If `{noEchoBack: true}` is specified to `options`, echo back is avoided. It is used to hide the secret text (e.g. password) which is typed by user on screen. (See `noEchoBack` option of `question` method)
#### `noTrim`
By default, the leading and trailing white spaces are removed from typed text. If `{noTrim: true}` is specified to `options`, those are not removed.
### `setPrompt`
```js
currentPrompt = readlineSync.setPrompt([prompt])
```
Sets the prompt, for example when you run `node` on the command line, you see `> `, which is node's prompt. (See `prompt` method)
The `prompt` may be string, or may not be (e.g. number, Date, Object, etc.). This is converted to string (i.e. `toString` method is called) before it is displayed every time.
For example, `[foo-directory]#` like a bash shell that show the current directory.
```js
// Object that has toString method.
readlineSync.setPrompt({
toString: function() {
return '[' + require('path').basename(process.cwd()) + ']# '; // Get and show current directory.
}
})
```
### `setEncoding`
```js
currentEncoding = readlineSync.setEncoding([encoding])
```
Set the encoding method of input (user's response) and output (`prompt` method and `question` method). Defaults to 'utf8'.
### `setPrint`
```js
readlineSync.setPrint([funcPrint])
```
The specified Function is called when any output (`prompt` and `question`). Defaults to `undefined`.
The Function is given two arguments the output text and `encoding`.
The specified `funcPrint` Function is called when any outputs (`prompt` method and `question` method). Defaults to `undefined`.
The `funcPrint` is given two arguments the output text and `encoding`.
![sample](cl_01.png)
For example, this is used to pass plain texts to Logger, when texts are colored.
For example, this is used to pass plain texts to the Logger, when texts are colored.
```js
var readlineSync = require('readline-sync'),
@ -82,7 +120,7 @@ var readlineSync = require('readline-sync'),
require('colors');
readlineSync.setPrint(function(display, encoding) {
logger.log(display.stripColors); // remove control characters
logger.log(display.stripColors); // Remove control characters.
});
console.log('Your account required.'.grey);
@ -173,13 +211,14 @@ Why did I choose it? :
Someday, I may rewrite readlineSync to use child_process.execSync, or safety module.
## Release History
* 2014-09-12 v0.4.8 fixed #9: Error of `stty` in read.sh.
* 2014-07-13 v0.4.3 fixed #6: Crypto input data.
* 2014-07-12 v0.4.2 `setPrompt()` and `setEncoding()` return current value.
* 2014-07-12 v0.4.1 `setPrompt()` and `question()` accept the value which is not string too (e.g. number, Date, Object, etc.).
* 2014-07-12 v0.4.0 Add `options.noEchoBack`.
* 2014-07-12 v0.3.0 Add `setPrint()`.
* 2014-06-27 v0.2.3 Add alternative reading via shell on the environment which don't support interactively reading.
* 2013-12-18 v0.2.2 Error handle for the environment which don't support interactively reading from stdin.
* 2013-08-30 v0.2.0 Rewrite exporting methods.
* 2013-08-29 v0.1.0 Initial release.
* 2015-01-27 v0.5.0 Add `options.noTrim`.
* 2014-09-12 v0.4.8 fixed #9: Error of `stty` in read.sh.
* 2014-07-13 v0.4.3 fixed #6: Crypto input data.
* 2014-07-12 v0.4.2 `setPrompt()` and `setEncoding()` return current value.
* 2014-07-12 v0.4.1 `setPrompt()` and `question()` accept the value which is not string too (e.g. number, Date, Object, etc.).
* 2014-07-12 v0.4.0 Add `options.noEchoBack`.
* 2014-07-12 v0.3.0 Add `setPrint()`.
* 2014-06-27 v0.2.3 Add alternative reading via shell on the environment which don't support interactively reading.
* 2013-12-18 v0.2.2 Error handle for the environment which don't support interactively reading from stdin.
* 2013-08-30 v0.2.0 Rewrite exporting methods.
* 2013-08-29 v0.1.0 Initial release.

4
lib/readline-sync.js
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@ -2,7 +2,7 @@
* readlineSync
* https://github.com/anseki/readline-sync
*
* Copyright (c) 2014 anseki
* Copyright (c) 2015 anseki
* Licensed under the MIT license.
*/
@ -73,7 +73,7 @@ function _readlineSync(display, options) {
}
return input.trim();
return options && options.noTrim ? input.replace(/[\r\n]+$/, '') : input.trim();
}
function _readlineShell(noEchoBack) {

2
package.json
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@ -1,6 +1,6 @@
{
"name": "readline-sync",
"version": "0.4.10",
"version": "0.5.0",
"title": "readlineSync",
"description": "Synchronous Readline",
"keywords": [