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stevo84

2010-Feb-19 08:47 UTC

Weird gsub behaviour

ruby 1.8.6 (2007-09-24 patchlevel 111)

str = ''\&123''
puts "abc".gsub("b", str)
puts "abc".gsub("b", "#{str}")
puts "abc".gsub("b", str.to_s)
puts "abc".gsub("b", ''\&123'')
puts "abc".gsub("b", "\&123")
>ruby test.rbab123c
ab123c
ab123c
ab123c
a&123c    <------------------- This I want to achieve using temporary
variable>Exit code: 0
If I change
str = ''\&123''
 to
str = "\&123"
 it works fine, but I get str from "match" function, so I cannot
specify it manually within parantheses.... Is there any way to change
string''s   ''string'' to "string"
behaviour???

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stevo84

2010-Feb-19 10:14 UTC

head link

Re: Weird gsub behaviour

The exact problem

a = ''<template><aaa:bbb/></template>''
b = ''<a class="add_line" href="#"
id="add_fields_invoice_lines"
onclick="add_fields(this, "invoice_lines", "&lt;fieldset
class\&quot;inputs invoice_line\&quot;&gt;&lt;ol&gt;\n   
&lt;li class\&quot;string required invoice_line_name\&quot;
id=\&quot;"''

str = (b.match /.*/)[0]

puts str

pn="bbb"

puts a.gsub("<aaa:#{pn}\/>", str)

=> <template><a class="add_line" href="#"
id="add_fields_invoice_lines" onclick="add_fields(this,
"invoice_lines", "&lt;fieldset
class=<aaa:bbb/>quot;inputs
invoice_line<aaa:bbb/>quot;&gt;&lt;ol&gt;\n    &lt;li
class=<aaa:bbb/>quot;string required invoice_line_name<aaa:bbb/>quot; id=<aaa:bbb/
>quot;"</template>
On 19 Lut, 09:47, stevo84
<blaze...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> ruby 1.8.6 (2007-09-24 patchlevel 111)
>
> str = ''\&123''
> puts "abc".gsub("b", str)
> puts "abc".gsub("b", "#{str}")
> puts "abc".gsub("b", str.to_s)
> puts "abc".gsub("b", ''\&123'')
> puts "abc".gsub("b", "\&123")
>
> >ruby test.rb
>
> ab123c
> ab123c
> ab123c
> ab123c
> a&123c    <------------------- This I want to achieve using
temporary
> variable
>
> >Exit code: 0
>
> If I change
> str = ''\&123''
>  to
> str = "\&123"
>  it works fine, but I get str from "match" function, so I cannot
> specify it manually within parantheses.... Is there any way to change
> string''s   ''string'' to "string"
behaviour???
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Xavier Noria

2010-Feb-19 10:24 UTC

head link

Re: Re: Weird gsub behaviour

Not sure I understand. From

a&123c    <------------------- This I want to achieve using temporary

I ask, do you know that & does not need escaping?

"abc".gsub("b", "&123") # =>
"a&123c"

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Frederick Cheung

2010-Feb-19 10:27 UTC

head link

Re: Weird gsub behaviour

On Feb 19, 8:47 am, stevo84
<blaze...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> ruby 1.8.6 (2007-09-24 patchlevel 111)
>
> str = ''\&123''
> puts "abc".gsub("b", str)
> puts "abc".gsub("b", "#{str}")
> puts "abc".gsub("b", str.to_s)
> puts "abc".gsub("b", ''\&123'')
> puts "abc".gsub("b", "\&123")
Why are you escaping the & at all ?

str = ''&123''
puts "abc".gsub("b", str)

outputs a&123c for me

Fred

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stevo84

2010-Feb-19 10:46 UTC

head link

Re: Weird gsub behaviour

It was received from already escaped html mixed with javascript - that
is why :(
I have no influence on the fact that these slashes are there...

Anyway I have came up with a solution - maybe there is a simpler way,
however the code below works

    str = ''\&123''

    puts "abc".gsub("b", str.gsub(/\&/o,
''\\\&\2\1''))

    => a\&123c



On 19 Lut, 11:27, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> On Feb 19, 8:47 am, stevo84
<blaze...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > ruby 1.8.6 (2007-09-24 patchlevel 111)
>
> > str = ''\&123''
> > puts "abc".gsub("b", str)
> > puts "abc".gsub("b", "#{str}")
> > puts "abc".gsub("b", str.to_s)
> > puts "abc".gsub("b",
''\&123'')
> > puts "abc".gsub("b", "\&123")
>
> Why are you escaping the & at all ?
>
> str = ''&123''
> puts "abc".gsub("b", str)
>
> outputs a&123c for me
>
> Fred
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stevo84

2010-Feb-19 10:48 UTC

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Re: Weird gsub behaviour

Argh - slashes missing -> here is the pastie code ->
http://pastie.org/832493

On 19 Lut, 11:46, stevo84
<blaze...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> It was received from already escaped html mixed with javascript - that
> is why :(
> I have no influence on the fact that these slashes are there...
>
> Anyway I have came up with a solution - maybe there is a simpler way,
> however the code below works
>
>     str = ''\&123''
>
>     puts "abc".gsub("b", str.gsub(/\&/o,
''\\\&\2\1''))
>
>     => a\&123c
>
> On 19 Lut, 11:27, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > On Feb 19, 8:47 am, stevo84
<blaze...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > ruby 1.8.6 (2007-09-24 patchlevel 111)
>
> > > str = ''\&123''
> > > puts "abc".gsub("b", str)
> > > puts "abc".gsub("b", "#{str}")
> > > puts "abc".gsub("b", str.to_s)
> > > puts "abc".gsub("b",
''\&123'')
> > > puts "abc".gsub("b", "\&123")
>
> > Why are you escaping the & at all ?
>
> > str = ''&123''
> > puts "abc".gsub("b", str)
>
> > outputs a&123c for me
>
> > Fred
>
>
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Xavier Noria

2010-Feb-19 10:55 UTC

head link

Re: Re: Weird gsub behaviour

On Fri, Feb 19, 2010 at 11:48 AM, stevo84
<blazejek-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Argh - slashes missing -> here is the pastie code ->
http://pastie.org/832493
Easier:

    "abc".gsub("b") { |_| str }

There str is taken verbatim.

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Rob Biedenharn

2010-Feb-19 15:08 UTC

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Re: Re: Weird gsub behaviour

On Feb 19, 2010, at 5:14 AM, stevo84 wrote:
> The exact problem
>
> a = ''<template><aaa:bbb/></template>''
> b = ''<a class="add_line" href="#"
id="add_fields_invoice_lines"
> onclick="add_fields(this, "invoice_lines",
"&lt;fieldset class> \&quot;inputs
invoice_line\&quot;&gt;&lt;ol&gt;\n    &lt;li class>
\&quot;string required invoice_line_name\&quot;
id=\&quot;"''
>
> str = (b.match /.*/)[0]
>
> puts str
>
> pn="bbb"
>
> puts a.gsub("<aaa:#{pn}\/>", str)
So did you try:
a.gsub("<aaa:#{pn}\/>") { b }

-Rob
>
> => <template><a class="add_line" href="#"
> id="add_fields_invoice_lines" onclick="add_fields(this,
> "invoice_lines", "&lt;fieldset
class=<aaa:bbb/>quot;inputs
> invoice_line<aaa:bbb/>quot;&gt;&lt;ol&gt;\n    &lt;li
class=<aaa:bbb/
>> quot;string required invoice_line_name<aaa:bbb/>quot;
id=<aaa:bbb/
>> quot;"</template>
>
> On 19 Lut, 09:47, stevo84
<blaze...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> ruby 1.8.6 (2007-09-24 patchlevel 111)
>>
>> str = ''\&123''
>> puts "abc".gsub("b", str)
>> puts "abc".gsub("b", "#{str}")
>> puts "abc".gsub("b", str.to_s)
>> puts "abc".gsub("b", ''\&123'')
>> puts "abc".gsub("b", "\&123")
>>
>>> ruby test.rb
>>
>> ab123c
>> ab123c
>> ab123c
>> ab123c
>> a&123c    <------------------- This I want to achieve using
temporary
>> variable
>>
>>> Exit code: 0
>>
>> If I change
>> str = ''\&123''
>>  to
>> str = "\&123"
>>  it works fine, but I get str from "match" function, so I
cannot
>> specify it manually within parantheses.... Is there any way to change
>> string''s   ''string'' to "string"
behaviour???
>
> --  
> You received this message because you are subscribed to the Google  
> Groups "Ruby on Rails: Talk" group.
> To post to this group, send email to rubyonrails- 
> talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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> .
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> .
>
Rob Biedenharn		http://agileconsultingllc.com
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org



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stevo84

2010-Feb-20 07:46 UTC

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Re: Weird gsub behaviour

No, I did not... and it sure works! I knew that it should be easier :)

Thank You for another piece of knowledge, Rob and Xavier

On 19 Lut, 16:08, Rob Biedenharn
<R...-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org>
wrote:> On Feb 19, 2010, at 5:14 AM, stevo84 wrote:
>
> > The exact problem
>
> > a =
''<template><aaa:bbb/></template>''
> > b = ''<a class="add_line" href="#"
id="add_fields_invoice_lines"
> > onclick="add_fields(this, "invoice_lines",
"&lt;fieldset class> > \&quot;inputs
invoice_line\&quot;&gt;&lt;ol&gt;\n    &lt;li class> >
\&quot;string required invoice_line_name\&quot;
id=\&quot;"''
>
> > str = (b.match /.*/)[0]
>
> > puts str
>
> > pn="bbb"
>
> > puts a.gsub("<aaa:#{pn}\/>", str)
>
> So did you try:
> a.gsub("<aaa:#{pn}\/>") { b }
>
> -Rob
>
>
>
>
>
> > => <template><a class="add_line"
href="#"
> > id="add_fields_invoice_lines" onclick="add_fields(this,
> > "invoice_lines", "&lt;fieldset
class=<aaa:bbb/>quot;inputs
> > invoice_line<aaa:bbb/>quot;&gt;&lt;ol&gt;\n  
 &lt;li class=<aaa:bbb/
> >> quot;string required invoice_line_name<aaa:bbb/>quot;
id=<aaa:bbb/
> >> quot;"</template>
>
> > On 19 Lut, 09:47, stevo84
<blaze...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> ruby 1.8.6 (2007-09-24 patchlevel 111)
>
> >> str = ''\&123''
> >> puts "abc".gsub("b", str)
> >> puts "abc".gsub("b", "#{str}")
> >> puts "abc".gsub("b", str.to_s)
> >> puts "abc".gsub("b",
''\&123'')
> >> puts "abc".gsub("b", "\&123")
>
> >>> ruby test.rb
>
> >> ab123c
> >> ab123c
> >> ab123c
> >> ab123c
> >> a&123c    <------------------- This I want to achieve using
temporary
> >> variable
>
> >>> Exit code: 0
>
> >> If I change
> >> str = ''\&123''
> >>  to
> >> str = "\&123"
> >>  it works fine, but I get str from "match" function, so
I cannot
> >> specify it manually within parantheses.... Is there any way to
change
> >> string''s   ''string'' to
"string" behaviour???
>
> > --  
> > You received this message because you are subscribed to the Google  
> > Groups "Ruby on Rails: Talk" group.
> > To post to this group, send email to rubyonrails-
> > talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> > To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
> > .
> > For more options, visit this group
athttp://groups.google.com/group/rubyonrails-talk?hl=en
> > .
>
> Rob Biedenharn          http://agileconsultingllc.com
> R...-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org
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