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Validation - Maximium limit for characters in VFE

System

Hi,

I want to set the max limit for the characters in visual format editor. how can i do that.
for eg. i tried this for 100 characters.

validation-regex="^.{0,100}$"
and
validation-regex="^.\{0,100\}$"

but the exapmle works fine only for the textarea not for VFE. Should i use Form API. Any suggestions will be grateful.

Thanks

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Migrateduser

Keep in mind that . only matches a non-whitespace character, so you really want something more like this:

validation-regex="^[\w\W]{1,100}$"

However, I suspect your problem is more in the tags and such that get inserted by the VFE, which could potentially create a dramatic increase in your character count, so you need to adjust your limit to account for that.

Alternatively, if it's only the actual text that you care about and not the tags, it would probably be easier to do in javascript. Use one regex to strip out the tags and then count the length of what remains.

Migrateduser

Well, i have multiple VFE in the same template, so how should i use the max Character validation in multiple VFE with in same template. I have approx dozen of same templates at my templatedata.

Keep in mind that . only matches a non-whitespace character, so you really want something more like this:

validation-regex="^[\w\W]{1,100}$"

However, I suspect your problem is more in the tags and such that get inserted by the VFE, which could potentially create a dramatic increase in your character count, so you need to adjust your limit to account for that.

Alternatively, if it's only the actual text that you care about and not the tags, it would probably be easier to do in javascript. Use one regex to strip out the tags and then count the length of what remains.

Adam Stoller

Keep in mind that . only matches a non-whitespace character

I suppose it might depend on what regex library is being used to process the validation-regex directive.

From perldoc perlre:[indent]. Match any character (except newline)[/indent] - if this is the case - I think the regex you'd be looking for would be something more like:

validation-regex="^[.\n]{1,100}$"

though in practice it may perform about the same as that which you suggested.

Migrateduser

Sorry - that was a typo on my part. I intended "non newline character".

And yes, the character class you give is identical in function. I would be inclined to guess that it might be slightly better from a performance standpoing as well, but that really depends on how character classes are implemented internally.

Migrateduser

ghoti, is there any input on my post.

I suppose it might depend on what regex library is being used to process the validation-regex directive.

From perldoc perlre:[indent]. Match any character (except newline)[/indent]- if this is the case - I think the regex you'd be looking for would be something more like:
validation-regex="^[.\n]{1,100}$"
though in practice it may perform about the same as that which you suggested.

Adam Stoller

Well, i have multiple VFE in the same template, so how should i use the max Character validation in multiple VFE with in same template. I have approx dozen of same templates at my templatedata.

You apply the same validation-regex to all such fields and/or create FormAPI code that you can use to validate it by placing an appropriate event handler for each of those items.