DropSuit NLP is an open-source JavaScript and Node.js library offering diverse functions for natural language processing and data manipulation. The clnstr function is one of its modules, designed for cleaning and formatting strings by removing marks, extra marks, and converting to lowercase. It is available under the Apache License 2.0.

The clnstr function is a part of the DropSuit NLP library, it's a JavaScript and Node.js function that removes marks, extra marks, and converts the trimmed string to lowercase. It's open-source and available under the Apache License 2.0.

Add the library function by installing it via npm:

npm install dropsuit-clnstr

Import the library in your project:

const dropsuit_clnstr = require("dropsuit-clnstr");

Create an instance of the class by passing an optional input string or null, and an optional boolean value that controls whether the processing output results are displayed in the terminal or not (default is false).

let dsclnstr = new dropsuit_clnstr(null, false);

• input: A raw string input that will be processed, or null to process the input passed to the constructor.

• txt(): Trims the input, removes punctuation marks and numbers, and converts the input to lowercase.
• nmb(): Trims the input, removes punctuation marks and converts the input to lowercase.
• pnc(): Trims the input, converts the input to lowercase, and removes extra punctuation marks.

You can call the clnstr method passing an optional input string or null, to process the input passed to the constructor.

let out = dsclnstr.clnstr(myInputString);
console.log(out);

Return object instance:

Input:
[
 "  ,.  ,!- ,hello,!bot  ,  ,, so  ,How long           DOes,,&&&swift  - +-   -delivery   service,,,,,,----TYPE:: ,.:/-- :-class     8457'' take?? ? ?,?thank  you !??!,?!.. . .!..  ...  "
]

Output:

Return: strTxt()

1. Remove punctuation marks
2. Remove numbers
3. Trim string
4. Convert to lower case.

[
 'hello bot so how long does swift delivery service type class take thank you'
]

Return: strNmb()

1. Remove punctuation marks
2. (Keep numbers)
3. Trim string
4. Convert to lower case.

[
 'hello bot so how long does swift delivery service type class 8457 take thank you'
]

Return: strPnc()

1. (Keep punctuation, remove extra marks)
2. (Keep numbers)
3. Trim string
4. Convert to lower case.

[
 "hello, bot, so, how long does, swift - delivery service, type: class 8457' take? thank you!"
]

Object:

{
 stTxt: 'hello bot so how long does swift delivery service type class s take thank you',
 stNmb: 'hello bot so how long does swift delivery service type class 8457 s take thank you',
 stPnc: "hello, bot, so, how long does, swift - delivery service, type: class 8457's take? thank you!",
 txt: [Function: strTxt],
 nmb: [Function: strNmb],
 pnc: [Function: strPnc]
}

The example code shows how the input string is processed using the clnstr() method and the output returned by the function. The output is an object that contains three properties, stTxt, stNmb, stPnc which are the results of applying the methods txt(), nmb() and pnc() respectively.

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Apache License 2.0