Need avise on javascript and string problem.

[Tariq]

Hi,

I am trying to do this bit using client side script in an asp page

var x = "<%ServerVar%>";

The issue is if SerVar has carraige returns the Unterminates String
Constant error is thrown on the client side. With regard to this I can
only manupilate the client side Javascript.

Any thoughts on how i can get the contents of ServerVar on to a
javascript variable?

Thanks,
Tariq

[Michael Winter]

On 30 Nov 2004 03:50:01 -0800, Tariq <ta*******@gmail.com> wrote:

[snip]

var x = "<%ServerVar%>";

The issue is if SerVar has carraige returns the Unterminates String
Constant error is thrown on the client side. With regard to this I can
only manupilate the client side Javascript.
Then you're out of luck. Line terminators *must* be escaped, either using
character escapes like \n and \r, or numeric escapes (hex: \x0A or
Unicode: \u000A).
Any thoughts on how i can get the contents of ServerVar on to a
javascript variable?

You will have to escape the value first so that it outputs

var x = 'This string contains\na new line';

instead of

var x = 'This string contains
a new line';

Mike

--
Michael Winter
Replace ".invalid" with ".uk" to reply by e-mail.

[Stuart Palmer]

If this is ASP, try and do a replace on the string you are going to put into
the JS before the JS section is written the call is something like:

strJSString = replace(strString, "vbcrlf", "/n")

Then response.write strJSString to the screen, equally you could chnage all
carriage returns to just be spaces in a similar way.

Hope that helps
Stu

[RobB]

"Michael Winter" <M.******@blueyonder.co.invalid> wrote in message news:<opsh9134uox13kvk@atlantis>...

On 30 Nov 2004 03:50:01 -0800, Tariq <ta*******@gmail.com> wrote:

[snip]

var x = "<%ServerVar%>";

The issue is if SerVar has carraige returns the Unterminates String
Constant error is thrown on the client side. With regard to this I can
only manupilate the client side Javascript.

Then you're out of luck. Line terminators *must* be escaped, either using
character escapes like \n and \r, or numeric escapes (hex: \x0A or
Unicode: \u000A).

Any thoughts on how i can get the contents of ServerVar on to a
javascript variable?

You will have to escape the value first so that it outputs

var x = 'This string contains\na new line';

instead of

var x = 'This string contains
a new line';

Mike

Wouldn't this do as well? ;)

var x = 'This string contains\
a new line';

(the Macromedia approach, escape the linefeed, avoid the semicolon)

[Michael Winter]

On 30 Nov 2004 10:45:41 -0800, RobB <fe******@hotmail.com> wrote:

[snip]

Wouldn't this do as well? ;)

var x = 'This string contains\
a new line';

No. It's invalid. Line terminators are not allowed to appear in any part
of a string literal. They *must* be escaped.

Yes, some browsers accept it, but (in my opinion) it should not be used as
you're relying on an unspecified extension to the language. Besides, if
you can change CR to \CR, why can't you replace CR with \n?

[snip]

Mike

--
Michael Winter
Replace ".invalid" with ".uk" to reply by e-mail.

[Michael Winter]

On Tue, 30 Nov 2004 19:17:58 GMT, Michael Winter
<M.******@blueyonder.co.invalid> wrote:

[snip]

Besides, if you can change CR to \CR, why can't you replace CR with \n?

Oops. Replace CR with LF.

Mike

--
Michael Winter
Replace ".invalid" with ".uk" to reply by e-mail.

[Dr John Stockton]

JRS: In article <opsialbslzx13kvk@atlantis>, dated Tue, 30 Nov 2004
19:17:58, seen in news:comp.lang.javascript, Michael Winter <M.Winter@bl
ueyonder.co.invalid> posted :

On 30 Nov 2004 10:45:41 -0800, RobB <fe******@hotmail.com> wrote:

[snip]

Wouldn't this do as well? ;)

var x = 'This string contains\
a new line';

No. It's invalid. Line terminators are not allowed to appear in any part
of a string literal. They *must* be escaped.

Yes, some browsers accept it, but (in my opinion) it should not be used as
you're relying on an unspecified extension to the language. Besides, if
you can change CR to \CR, why can't you replace CR with \n?

Moreover, on RobB's example, the newline is escaped out of existence,
not to a string-compatible version of itself. The string, in systems
(mot necessarily only browsers) that accept that backslash, is

This string containsa new line

so that it is a badly-composed falsehood!

BTW, AIUI, in javascript \n means newline; in different systems, that
might be CR = 13, LF = 10, CRLF, Unicode, ...

--
© John Stockton, Surrey, UK. ?@merlyn.demon.co.uk DOS 3.3, 6.20; Win98. ©
Web <URL:http://www.merlyn.demon.co.uk/> - FAQqish topics, acronyms & links.
PAS EXE TXT ZIP via <URL:http://www.merlyn.demon.co.uk/programs/00index.htm>
My DOS <URL:http://www.merlyn.demon.co.uk/batfiles.htm> - also batprogs.htm.

[RobB]

Dr John Stockton <sp**@merlyn.demon.co.uk> wrote in message news:<Gi**************@merlyn.demon.co.uk>...

JRS: In article <opsialbslzx13kvk@atlantis>, dated Tue, 30 Nov 2004
19:17:58, seen in news:comp.lang.javascript, Michael Winter <M.Winter@bl
ueyonder.co.invalid> posted :

On 30 Nov 2004 10:45:41 -0800, RobB <fe******@hotmail.com> wrote:

[snip]

Wouldn't this do as well? ;)

var x = 'This string contains\
a new line';

No. It's invalid. Line terminators are not allowed to appear in any part
of a string literal. They *must* be escaped.

Yes, some browsers accept it, but (in my opinion) it should not be used as
you're relying on an unspecified extension to the language. Besides, if
you can change CR to \CR, why can't you replace CR with \n?

Moreover, on RobB's example, the newline is escaped out of existence,
not to a string-compatible version of itself. The string, in systems
(mot necessarily only browsers) that accept that backslash, is

This string containsa new line

so that it is a badly-composed falsehood!

You callin' me a liar? :-o