Technical References - [grep]

Replaces text based on a regular expression.

[grep search=regexp&replace=regexp]Any Text[/grep]

This popular UNIX utility has been adapted to WebDNA.
Example (normally you would put the following text into a .dna file on your server and use a web browser to link to it):

[grep search=([0-9]*-[0-9]*)&replace=<strong>\1</strong>]Hi, my phone number is 555-1234, and I'd like you to call me[/grep]

In the example above, the displayed text will be

Hi, my phone number is 555-1234, and I'd like you to call me

search(Required) Regular expression that defines what text to search for in the body of the context
replace(Required) Regular expression that defines how to output the resulting text

IgnoreCase

(Optional) ignores case sensitivity while performing the grep function


There is a new 'IgnoreCase' parameter for the [grep] context. Here is an example:

Search for 'usa' and replace with 'USA'

[grep search=usa&replace=USA&ignorecase=T]
I was born in the usA
I was born in the uSa
I was born in the Usa
[/grep]

Results:

I was born in the USA
I was born in the USA
I was born in the USA

The following example removes html tags

[grep search=(<[a-z]*>[^<>]*<\/[a-z]*>|<[a-z]*>)&replace=]
<script> remove the code 1 that's here</script> 1but not here<br> <hr>
<script> remove the code 2 that's here</script> 2but not here<br> <hr>
<script> remove the code 3 that's here</script> 3but not here<br> <hr>
[/grep]


Results:

1but not here 2but not here 3but not here

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