jashkenas--coffeescript/documentation/sections/heregexes.md

## Block Regular Expressions

Similar to block strings and comments, CoffeeScript supports block regexes — extended regular expressions that ignore internal whitespace and can contain comments and interpolation. Modeled after Perl’s `/x` modifier, CoffeeScript’s block regexes are delimited by `///` and go a long way towards making complex regular expressions readable. To quote from the CoffeeScript source:

```
codeFor('heregexes')
```
-												Docs improvements: content in Markdown, organization into subtemplates, fixed tests (#4401)

* Replace tiny bitmaps with base64-encoded URIs

* Optimize SVGs; replace logo PNG with SVG

* Modernize favicon

* Embed CSS; a bit unorthodox, but we’re a single page so there’s no point in separate .css files and their separate HTTP requests

* Documentation is now markdown, converted to HTML on compilation

* Render the examples when we’re rendering index.html; they compile so quickly that there’s no need to pre-render them and save the intermediate .js files

* Split apart index.html into components that Cakefile assembles, so that we can add in logic to include different files for v1 versus v2

* Split building index.html and building test.html into two tasks; collapse the parts of `releaseHeader` into one compact function

* Move include logic into templates

* Get error messages tests to work in the browser

* Update output index.html

* Split body into nav and body

* Watch subtemplates

* Revert "Split body into nav and body"

This reverts commit ec9e559ec0c3f350bd009afd437652347789b180.

* Add marked

* Update gitignore

* Use idiomatic markdown output for code blocks (<pre><code>)

* Handle ids within the template, not in the Cakefile; remove marked’s auto-generated and conflicting ids

* Move the `codeFor` function into versioned folders, so that v1 and v2 docs can have different example code blocks/editors

* Update packages, including new highlight.js which supports our newer keywords and triple backticks (docs output is unchanged)

											
										
										
											2016-12-16 00:05:44 -05:00
+								## Block Regular Expressions
 								Similar to block strings and comments, CoffeeScript supports block regexes — extended regular expressions that ignore internal whitespace and can contain comments and interpolation. Modeled after Perl’s `/x` modifier, CoffeeScript’s block regexes are delimited by `///` and go a long way towards making complex regular expressions readable. To quote from the CoffeeScript source:
 								```
 								codeFor('heregexes')
 								```