How to print something with erb?
in [Ruby]
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From: Dominic Rose on 10 Jun 2010 10:59 Hello, I'm having a problem to output things in the write order with erb1.9 and lighttpd . I don't know if it's the normal comportement of erb but this is how it works for me: Content of my ERB file: test{<%= 1 %>2<% puts 3 %>} On my web browser I get this output: 3 test{12} puts or print comes before any text.. Do you wich function instead of puts would print test{123}? Thanks wery much -- Posted via http://www.ruby-forum.com/.
From: Rein Henrichs on 10 Jun 2010 12:37 On 2010-06-10 07:59:42 -0700, Dominic Rose said: > Hello, > I'm having a problem to output things in the write order with erb1.9 > and lighttpd . I don't know if it's the normal comportement of erb but > this is how it works for me: > > Content of my ERB file: test{<%= 1 %>2<% puts 3 %>} > > On my web browser I get this output: > 3 > test{12} > > puts or print comes before any text.. Do you wich function instead of > puts would print test{123}? > > Thanks wery much Do not combine puts with <%= %> output in your erb templates. puts prints to STDOUT, which may or may not be where your erb template is rendered. Just use <%= %>. -- Rein Henrichs http://puppetlabs.com http://reinh.com
From: Dominic Rose on 12 Jun 2010 09:52 Rein Henrichs wrote: > On 2010-06-10 07:59:42 -0700, Dominic Rose said: > >> >> puts or print comes before any text.. Do you wich function instead of >> puts would print test{123}? >> >> Thanks wery much > > Do not combine puts with <%= %> output in your erb templates. puts > prints to STDOUT, which may or may not be where your erb template is > rendered. Just use <%= %>. If I want to print something on the middle of a script I should do "%><%= thing_to_print %><%" and that's what I was trying to avoid. Do you know if I can do somthing like that ? def print string $__erbout.write string end Except that I don't know what is the erbout real identifier. -- Posted via http://www.ruby-forum.com/.
From: Rein Henrichs on 13 Jun 2010 03:35 On 2010-06-12 06:52:12 -0700, Dominic Rose said: > Rein Henrichs wrote: >> On 2010-06-10 07:59:42 -0700, Dominic Rose said: >> >>> >>> puts or print comes before any text.. Do you wich function instead of >>> puts would print test{123}? >>> >>> Thanks wery much >> >> Do not combine puts with <%= %> output in your erb templates. puts >> prints to STDOUT, which may or may not be where your erb template is >> rendered. Just use <%= %>. > > If I want to print something on the middle of a script I should do > "%><%= thing_to_print %><%" and that's what I was trying to avoid. Do > you know if I can do somthing like that ? > > def print string > $__erbout.write string > end > > Except that I don't know what is the erbout real identifier. Just use <%= %>. -- Rein Henrichs http://puppetlabs.com http://reinh.com
From: Phrogz on 14 Jun 2010 02:20
On Jun 12, 7:52 am, Dominic Rose <ofusi...(a)gmail.com> wrote: > If I want to print something on the middle of a script I should do > "%><%= thing_to_print %><%" and that's what I was trying to avoid. Do > you know if I can do somthing like that ? > > def print string > $__erbout.write string > end Firstly: As noted in the documentation, you can specify the erb out variable in the call to ERB.new: http://www.ruby-doc.org/stdlib/libdoc/erb/rdoc/classes/ERB.html#M000301 If you don't have control over that, you can look at the source and see what (if any) name they are supplying and use that. Secondly: After I asked to have "puts" work almost 5 years ago, people on the list helped create a patch to ERB to allow print and puts to concatenate to this string. See [1] below. This was followed by some discussion (again prompted by me) for a RCR to allow this to work. See [2] below. The discussion there is probably worth reading before we dive into this again. [1] http://blade.nagaokaut.ac.jp/cgi-bin/vframe.rb/ruby/ruby-talk/152709?152641-153992+split-mode-vertical [2] http://blade.nagaokaut.ac.jp/cgi-bin/vframe.rb/ruby/ruby-talk/155537?155365-157410+split-mode-vertical |