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https://github.com/michelf/php-smartypants

Web typography prettifyier tools derived from the original SmartyPants.pl by John Gruber.
https://github.com/michelf/php-smartypants

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Web typography prettifyier tools derived from the original SmartyPants.pl by John Gruber.

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README 

        
PHP SmartyPants

===============



PHP SmartyPants Lib 1.8.1 - 12 Dec 2016



by Michel Fortin  



Original SmartyPants by John Gruber  



Introduction

------------



This is a library package that includes the PHP SmartyPants and its

sibling PHP SmartyPants Typographer with additional features.



SmartyPants is a free web typography prettifyier tool for web writers. It

easily translates plain ASCII punctuation characters into "smart" typographic 

punctuation HTML entities.



PHP SmartyPants is a port to PHP of the original SmartyPants written 

in Perl by John Gruber.



SmartyPants can perform the following transformations:



*   Straight quotes (`"` and `'`) into “curly” quote HTML entities

*   Backtick-style quotes (` ``like this'' `) into “curly” quote HTML

    entities

*   Dashes (`--` and `---`) into en- and em-dash entities

*   Three consecutive dots (`...`) into an ellipsis entity



SmartyPants Typographer can perform additional transformations:



*	French guillemets done using (`<<` and `>>`) into true « guillemets »

	HTML entities.

*	Comma-style quotes (` ,,like this`` ` or ` ''like this,, `) into their 

	curly equivalent.

*	Replace existing spaces with non-break spaces around punctuation marks 

	where appropriate, can also add or remove them if configured to.

*	Replace existing spaces with non-break spaces for spaces used as 

	a thousand separator and between a number and the unit symbol that 

	follows it (for most common units).



This means you can write, edit, and save using plain old ASCII straight 

quotes, plain dashes, and plain dots, but your published posts (and 

final HTML output) will appear with smart quotes, em-dashes, proper

ellipses, and proper no-break spaces (with Typographer).



SmartyPants does not modify characters within `
`, ``,

``, or `` tag blocks. Typically, these tags are used to

display text where smart quotes and other "smart punctuation" would not

be appropriate, such as source code or example markup.



### Backslash Escapes ###



If you need to use literal straight quotes (or plain hyphens and

periods), SmartyPants accepts the following backslash escape sequences

to force non-smart punctuation. It does so by transforming the escape

sequence into a decimal-encoded HTML entity:



    Escape  Value  Character

    ------  -----  ---------

      \\    &#92;    \

      \"    &#34;    "

      \'    &#39;    '

      \.    &#46;    .

      \-    &#45;    -

      \`    &#96;    `



This is useful, for example, when you want to use straight quotes as

foot and inch marks:



    6\'2\" tall



translates into:



    6&#39;2&#34; tall



in SmartyPants's HTML output. Which, when rendered by a web browser,

looks like:



    6'2" tall



Requirements

------------



This library package requires PHP 5.3 or later.



Note: The older plugin/library hybrid package for PHP SmartyPants and

PHP SmartyPants Typographer is still will work with PHP 4.0.5 and later.



Usage

-----



This library package is meant to be used with class autoloading. For autoloading 

to work, your project needs have setup a PSR-0-compatible autoloader. See the 

included Readme.php file for a minimal autoloader setup. (If you don't want to 

use autoloading you can do a classic `require_once` to manually include the 

files prior use instead.)



With class autoloading in place, putting the 'Michelf' folder in your 

include path should be enough for this to work:



	use Michelf\SmartyPants;

	$html_output = SmartyPants::defaultTransform($html_input);



SmartyPants Typographer is also available the same way:



	use Michelf\SmartyPantsTypographer;

	$html_output = SmartyPantsTypographer::defaultTransform($html_input);



If you are using PHP SmartyPants with another text filter function that 

generates HTML such as Markdown, you should filter the text *after* the 

the HTML-generating filter. This is an example with [PHP Markdown][pmd]:



	use Michelf\Markdown, Michelf\SmartyPants;

	$my_html = Markdown::defaultTransform($my_text);

	$my_html = SmartyPants::defaultTransform($my_html);



To learn more about configuration options, see the full list of

[configuration variables].



 [configuration variables]: https://michelf.ca/projects/php-smartypants/configuration/

 [pmd]: https://michelf.ca/projects/php-markdown/



### Usage Without an Autoloader ###



If you cannot use class autoloading, you can still use include or require to 

access the parser. To load the Michelf\SmartyPants parser, do it this way:



	require_once 'Michelf/SmartyPants.inc.php';

	

Or, if you need the Michelf\SmartyPantsTypographer parser:



	require_once 'Michelf/SmartyPantsTypographer.inc.php';



While the plain `.php` files depend on autoloading to work correctly, using the 

`.inc.php` files instead will eagerly load the dependencies that would be loaded 

on demand if you were using autoloading.



Algorithmic Shortcomings

------------------------



One situation in which quotes will get curled the wrong way is when

apostrophes are used at the start of leading contractions. For example:



    'Twas the night before Christmas.



In the case above, SmartyPants will turn the apostrophe into an opening

single-quote, when in fact it should be a closing one. I don't think

this problem can be solved in the general case -- every word processor

I've tried gets this wrong as well. In such cases, it's best to use the

proper HTML entity for closing single-quotes (`&#8217;` or `&rsquo;`) by

hand.



Bugs

----



To file bug reports or feature requests (other than topics listed in the

Caveats section above) please send email to:



<[email protected]>



If the bug involves quotes being curled the wrong way, please send

example text to illustrate.



Version History

---------------



PHP SmartyPants Lib 1.8.1 (12 Dec 2016)



*	Fixed an issue introduced in 1.8.0 where backtick quotes were broken.



PHP SmartyPants Lib 1.8.0 (13 Nov 2016)



*	Can now set replacement characters for all transformations using 

	configuration variables, including ellipses and dashes.



*	Relocated replacement quotes configuration variables from

	`SmartyPantsTyppographer` to `SmartyPants`. Also relocated

	`decodeEntitiesInConfiguration()` to follow the configuration variables.



*	Added conversion of apostrophe and double quote to Hebrew Geresh 

	and Gershayim when the apostrophe or double quote is surrounded on

	both sides by a Hebrew character. For instance:



		input:  צה"ל / צ'ארלס

		output: צה״ל / צ׳ארלס



	You can still put quotes around Hebrew words and they'll become curled 

	quotation marks (if that is enabled). This new transform only applies 

	in the middle of a word, and only to words in Hebrew.



PHP SmartyPants Lib 1.7.1 (16 Oct 2016)



*	Fixing bug where `decodeEntitiesInConfiguration()` would cause the 

	configuration to set the space for units to an empty string.



PHP SmartyPants Lib 1.7.0 (15 Oct 2016)



*	Made `public` some configuration variables that were documented

	were documented as `public` but were actually `protected`.



*	Added the `decodeEntitiesInConfiguration()` method on 

	`SmartyPantsTypographer` to quickly convert HTML entities in configuration 

	variables to their corresponding UTF-8 character.



PHP SmartyPants Lib 1.6.0 (10 Oct 2016)



This is the first release of PHP SmartyPants Lib. This package requires PHP

version 5.3 or later and is designed to work with PSR-0 autoloading and,

optionally with Composer. Here is a list of the changes since

PHP SmartyPants 1.5.1f:



*	Plugin interface for Wordpress and Smarty is no longer present in

	the Lib package. The classic package is still available if you need it:

	<https://michelf.ca/projects/php-markdown/classic/>



*	SmartyPants parser is now encapsulated in its own class, with methods and

	configuration variables `public` and `protected` protection attributes.

	This has been available in unreleased versions since a few years, but now 

	it's official.



*	SmartyPants now works great with PSR-0 autoloading and Composer. If

	however you prefer to more directly `require_once` the files, the

	".inc.php" variants of the file will make sure everything is included.



*	For those of you who cannot use class autoloading, you can now

	include `Michelf/SmartyPants.inc.php` or

	`Michelf/SmartyPantsTypographer.inc.php` (note the `.inc.php` extension)

	to automatically include other files required by the parser.