I have lines of text and I have to find whether these lines contain some link . how can I do it?Firstly I thought of finding www in the text but some links might not have www . Secondly I thought of finding http in text but again all links do not contain http. what to do?
Here is a regexp adapted from http://mathiasbynens.be/demo/url-regex entry by #diegoperini (Ruby syntax; you might need to change some details like Unicode \uXXXX to whatever your system uses):
(?:(?:https?|ftp):\/\/)?(?:\S+(?::\S*)?#)?(?:(?!10(?:\.\d{1,3}){3})(?!127(?:\.\d{1,3}){3})(?!169\.254(?:\.\d{1,3}){2})(?!192\.168(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\u00a1-\uffff0-9]+-?)*[a-z\u00a1-\uffff0-9]+)(?:\.(?:[a-z\u00a1-\uffff0-9]+-?)*[a-z\u00a1-\uffff0-9]+)*(?:\.(?:[a-z\u00a1-\uffff]{2,})))(?::\d{2,5})?(?:\/[^\s]*)?
Related
I am trying to make an internal link to a heading called "word & word".
Since I am using Jekyll, the content is in Markdown files and the heading I want to link to looks like this:
### word & word
I know that I can not use & in URLs.
Therefore this would not be an option:
#word-&-word
I also tried:
#word-%26-word
and
#word-&-word
#word-%26amp;-word
#word-%20amp%3B-word
However, both versions are not working.
What would be the appropriat way to fix this?
Kramdown is striping non alphanumeric from header id's and replacing spaces by -.
You can just check this behavior with :
- mandatory
{:toc}
### word & word
Resulting link in generated table of content is #word--word
See kramdown documentation
I'm writing a wiki on Redmine for the program my company just developed. I've been reading Redmine Wiki formatting pages but I simply can't find how to link to headers on a page that hold spaces.
For example:
This works [[Setup#Oracle|Oracle Setup]]
This does not work [[Setup#Oracle DB|Oracle DB Setup]]
The second I have a header with a space, hyphen, underscore... ANYTHING more than one word, Redmine is unable to link.
Any ideas how to link correctly?
Hyphens worked for me using the textile formatting.
[[Wiki#Test-link-target|a link]]
If you open the wiki page you should see a little paragraph symbol next to each header that appears when you hover your mouse there. That should give you the (semi-)permalink you can use. You can always look at the wiki pages source for the link names.
One problem I remember when working on the Markdown filter was that each text formatter would create it's table of contents separately. So the anchor links for textile might be different than the ones for plain text or Markdown.
I'm using playframework, and I hope to generate complex urls like stackoverflow. For example, I want to generate a question's url:
http://aaa.com/questions/123456/How-to-generator-a-complex-url
Note the last part, it's the title of the question.
But I don't know how to do it.
UPDATED
In the playframework, we can define routes in conf/routes file, and what I do is:
GET /questions/{<\d+>id} Questions.show
In this way, when we call #{Questions.show(id)} in views, it will generate:
http://aaa.com/questions/123456
But how to let the generated has a title part, is difficult.
With playframework it's easy to generate such url. In your routes file you add this :
GET /questions/{id}/{title} YourController.yourMethod
See the doc in playframework site about routing for more info
In your html page :
<a href="#{YourController.yourMethod(id,title.slugify())}">
slugify method from JavaExtensions, clean your title from reserved characters (see doc)
It a server-side url rewriter does. In case of SO it doesn't matter you type {...}/questions/4698625/how-to-generate-complex-url-like-stackoverflow or {...}/questions/4698625 - they both redirects to the same content. So this postfix is used just to increase readability of a url.
To see more details about url rewriting, see this post.
UPD:
to generate such a postfix,
take a title of the content,
shrink multiple whitespaces into single
replace all whitespaces with dash (-)
remove all non-letter symbols from a title
Better to perform this operations with Regular Expressions
In Umbraco CMS, I would like to prevent the contents to have names having invalid URL character such %, > and etc.
How should I do that?
Regards,
Nami
Have a look at your /config/umbracoSettings.config file, it already has a set of replace characters, among which the % character. You can add more if you want to.
If, for any reason you would want to completely prevent those characters in the nodename, you would have to write an afterSave eventhandler so you can do the replace in your own custom code.
I have a news section where the pages resolve to urls like
newsArticle.php?id=210
What I would like to do is use the title from the database to create seo friendly titles like
newsArticle/joe-goes-to-town
Any ideas how I can achieve this?
Thanks,
R.
I suggest you actually include the ID in the URL, before the title part, and ignore the title itself when routing. So your URL might become
/news/210/joe-goes-to-town
That's exactly what Stack Overflow does, and it works well. It means that the title can change without links breaking.
Obviously the exact details will depend on what platform you're using - you haven't specified - but the basic steps will be:
When generating a link, take the article title and convert it into something URL-friendly; you probably want to remove all punctuation, and you should consider accented characters etc. Bear in mind that the title won't need to be unique, because you've got the ID as well
When handling a request to anything starting with /news, take the next part of the path, parse it as an integer and load the appropriate article.
Assuming you are using PHP and can alter your source code (this is quite mandatory to get the article's title), I'd do the following:
First, you'll need to have a function (or maybe a method in an object-oriented architecture) to generate the URLs for you in your code. You'd supply the function with the article object or the article ID and it returns the friendly URL with the ID and the friendly title.
Basically function url(Article $article) => URL.
You will also need some URL rewriting rules to remove the PHP script from the URL. For Apache, refer to the mod_rewrite documentation for details (RewriteEngine, RewriteRule, RewriteCond).