CODEWITHSUNDEEP
ruby-on-railsrubystringcharactercapitalize
Christoffer
Christoffer

Reputation: 2411

Rails: Capitalize characters after certain string

Using: Rails 3.0.3.

I have a string that could be seen as this one:

<p>hello, how are you? oh, that's nice! i am glad you are fine. i am too.<br />i am glad to have met you.</p>

I want each character following any of <p> <br /> ! ? . to be capitalized. Basically make the string above look good.

Is there a standard functionality for that? What should I do?

ps. Tried to bold the characters in question, but it didn't work...

Upvotes: 2

Views: 790

Answers (4)

Mark S
Mark S

Reputation: 21

Using Nokogiri you can have any markup around the text, and it breaks on the <br /> etc.

ng = Nokogiri::HTML.fragment("<p>hello, how are you? oh, that's nice! i am glad you are fine. i am too.<br />i am glad to have met you.</p>")
ng.traverse{|n| (n.content = n.content.gsub(/(.*?)([\.|\!|\?])/) { " #{$1.strip.capitalize}#{$2}" }.strip) if n.text?}
ng.to_s

gives :

"<p>Hello, how are you? Oh, that's nice! I am glad you are fine. I am too.<br>I am glad to have met you.</p>"

I used strip twice, first because a sentence after stop/question/exclamation will have white space and not capitalize otherwise, then to put the spacing back I added a space before each sentence - the second strip removes the generated space at the start of the final output.

Upvotes: 2

Lester Peabody
Lester Peabody

Reputation: 1888

Going off Niklaos answer, I've improved it slightly to take into account the period and keeping spacing intact in the rendered HTML.

str.gsub(/(\<p\>|\<br \/\>|[?!.])([\s]*)([[:alpha:]]{1})/) {"#{$1}#{$2}#{$3.capitalize}"}

Edit: Added punctuation characters to be in a single character class, captured all in between whitespace to preserve spacing. Much cleaner.

Upvotes: 1

Nicolas Guillaume
Nicolas Guillaume

Reputation: 8444

Hum I feel like it's time to call super Regex :)

str.gsub(/(\<p\>|\<br \/\>|! |\? )(.{1})/) {"#{$1}#{$2.capitalize}"}

That should to the job.

Note: this can be improved to have more flexibility.

Upvotes: 0

corroded
corroded

Reputation: 21604

capitalize is the method you are looking for. although you have to do it for each sentence. You can easily parse that with nokogiri if you have to though

Upvotes: 0

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