text-wrap

Fast and safe way to wrap your text with a header + footer.

Reasons for using it:

• Separate initialization for header + footer is necessary for fast file processing.
• Customizable verification for header + footer presence to avoid their duplication.

Installing

$ npm install text-wrap

Testing

$ npm test

Testing with coverage:

$ npm run coverage

Usage

As a function, when a single instance is used:

var wrap = require('text-wrap');
wrap.header = 'header-';
wrap.footer = '-footer';
wrap('body'); //=> header-body-footer

As a class, when multiple instances are needed:

var TextWrap = require('text-wrap');
var tw = new TextWrap();
tw.header = 'header-';
tw.footer = '-footer';
tw.wrap('body'); //=> header-body-footer

For bulk file processing see grunt-file-wrap.

API

wrap(text, [options]) ⇒ String

Wraps the text with the current header + footer, according to the options, and returns the result.

By default, the header is added when it is not found within the text, or when there are non-empty symbols that precede it. Accordingly, the footer is added when it is not found within the text, or when there are non-empty symbols that follow it.

Before the header or footer are searched for within text, they are trimmed first - all trailing empty symbols are removed from them (spaces, tabs, line breaks). However, their full content is used when adding them.

Passing in a non-string value for the text will throw Invalid text input.

options.skipCheck ⇒ Boolean

Disables verification for duplicate header or footer.

• false (default) - add header + footer, if they are missing
• true - add header + footer regardless of their presence

Enabling this option is effectively switching off most of what this library does, which may be needed when processing files in a bulk requires no verification for certain file types.

options.unique ⇒ Boolean

Enforces uniqueness of both header and footer within the text.

• false (default) - verify for non-empty symbols that precede the header or follow the footer
• true - ignore non-empty symbols, add header + footer only when not found

Enabling this option is to ignore non-empty symbols that precede the header or follow the footer, and to add them only when they are not found within the text at all.

NOTE: This option has no effect when option skipCheck is enabled.

wrap.header ⇒ String

Header text to be added, set to an empty string by default.

Setting it to a non-string value will throw Invalid header content.

wrap.footer ⇒ String

Footer text to be added, set to an empty string by default.

Setting it to a non-string value will throw Invalid footer content.

wrap.clear()

Resets content for both header and footer to empty strings.

License

Copyright © 2016 Vitaly Tomilov; Released under the MIT license.