.gsub( /\n/, "\n\r" ) not working in WebDialog

onidarbe

Strange thing I don't grasp:

htmlCode = %{ <html> test </html>} win = UI::WebDialog.new( "" ) win.set_html( htmlCode.gsub(/\n/,"\n\r") ) win.show p htmlCode[7]

When I right-click the WebDialog on Windows 7 selecting "View source", notepad opens and shows no new-lines or carriage-returns, so everything is on 1 line like this:
<html> test</html>
Although selecting this and copy/paste it here or in notepad++ does show new-lines and carriage-returns like:
%(#0000FF)[<html>
test
</html>]

It is solved when I add a \n after each line in %{...}
although the Ruby Console is showing a 10, telling me there is alreeady a newline, \n
So why doesn't .gsub(/\n/,"\n\r") work?!

Another test shows .gsub(/\n/,"\n\r") is working, only not in the WebDialog !!!
"<html>\ntest</html>".gsub(/\n/,"\n\r")[7] 13
while this still shows 1 line in Notepad with "View source"
win = UI::WebDialog.new( "" ) win.set_html( "<html>\ntest</html>".gsub(/\n/,"\n\r") ) win.show

Dan Rathbun

gsub creates a NEW string. It does not change the source string.

use gsub! instead, like:

htmlCode = %{
<html>
test
</html>}
win = UI;;WebDialog.new( "" )
htmlCode.gsub!(/\n/,"\n\r")
win.set_html( htmlCode )
win.show
p htmlCode[7]

htmlCode.gsub!(/\n/,"\n\r")
is the similar to:
htmlCode = htmlCode.gsub(/\n/,"\n\r")
... except that immediate methods (names ending with **!**,) return nil if no changes are made,... so do not use them in an assignment expression.

Dan Rathbun

Another thing, in HTML use a %(#8000BF)[<BR>] tag to cause a linebreak, not "\n".

tt_su

@dan rathbun said:

... except that immediate methods (names ending with **!**,) return nil if no changes are made,... so do not use them in an assignment expression.

This is such an annoying behaviour of Ruby. Source of so many creeping bugs.

TIG

Enclosing <p> tags in html should recognize new lines in the html's text, and reflect that in what is displayed.
Or as Dan says add <br> to force a new line in what is displayed...
A \n will not work within html like you expected...

Incidentally, do you have your rb files' encoding set to 'UTF-8 without BOM' ?
You ought to...
Notepad++ has easy options to re-encode existing ANSI files... and you can set the exe's options to make all new text files 'UTF-8 without BOM' anyway...

onidarbe

Thank you all.

However gsub! isn't the solution, still shows everything on one line in notepad!
I know <br> is the new-line in html, but I'd like to give out a html that also has new-lines using "View source" in notepad. Makes it more readable

But I've found the problem so it is solved
It's stupid but I should have used .gsub(/\n/,"**\r\n**") not .gsub(/\n/,"**\n\r**")

tt_su

Yea, Notepad is fuzzy about new lines.

onidarbe

So this time it's not SU Ruby but MS-Windows

Dan Rathbun

@onidarbe said:

So this time it's not SU Ruby but MS-Windows

NotePad sucks.

To set View Source to Notepad++ run the reg file for your Windows bitsize:
(choose 32bit or 64bit Windows)

If you installed Notepad++ to a custom location, you will need to edit the regfile !

set_view_source_to_notepadpp.zip

onidarbe

Thanks Dan!

But in this case I want for those maybe using my stuff to make it readable in notepad to

.gsub( /\n/, &quot;\n\r&quot; ) not working in WebDialog

.gsub( /\n/, "\n\r" ) not working in WebDialog