regex find any neumeric value not contained in double quotes

[Carl379159581cjb]

10/30/2024

What is the correct regex syntax to find a numeric value not in double quotes?

Thanks for the help.

Carl

[BenPleysier · Accepted solution]

To find numeric values not enclosed in double quotes, you can use a negative lookbehind and lookahead assertion in your regex pattern. Here's an example:

(?<!")\b\d+\b(?!")

Explanation:

• (?<!") is a negative lookbehind assertion that ensures the numeric value is not preceded by a double quote.

• \b\d+\b matches a numeric value. \b is a word boundary to ensure it's a standalone number, and \d+ matches one or more digits.

• (?!") is a negative lookahead assertion that ensures the numeric value is not followed by a double quote.

[Carl379159581cjb]

Thanks for your time and help. the expression worked well. Your explanation was detailed and great. 

[Carl379159581cjb]

What I was trying to do is update some old html code.  For example <td valign="TOP" height=20>     in dreamweaver gives me the warning of "the value of attribute height must be contained in double quotes"   1. So I find all numeric values not contained in double quotes.

2.  Then add the double quotes to the numeric value or attribute .   example   <td valign="TOP" height="20">  the value of 20 is contained in double quotes.   

What is the correct replace with syntax ?  the numeric value could be anything. so some type of wild card ?  double quotes, asterix for the wildcard,  double quotes  "*"?    Am I going about this wrong ? Maybe there is a simpler way.   Thanks 

[BenPleysier · Accepted solution]

Search for

(?<!")\b\d+\b(?!")

Replace with

"$1"

Explanation:

"$1" - This replacement pattern uses $1, which refers to the first capturing group (the numeric value). By enclosing it in double quotes, we ensure the numeric value gets wrapped in quotes.

[Carl379159581cjb]

Thanks again for the help.

Maybe someone can help with this error.  I am using Adobe Dreamweaver 19.2.1.    

I receive the following error when executing  my find and replace string  and selecting replace all.  Regular expression syntax error:  invalid quantifier.  

Search string  =(?<!")\b(\d+)\b(?!")

Replace string  ="$1"

I do not recieve the error if I simply select replace. Adobe makes the appropriate changes with no error. The error  only occurs if I click replace all.

Thanks

[Nancy OShea · Accepted solution]

Your old HTML code should be modernized to current HTML5 & CSS web standards.

Example:

https://www.w3schools.com/css/tryit.asp?filename=trycss_table_vertical-align

Code Validation Services:

HTML: https://validator.w3.org/

CSS: https://jigsaw.w3.org/css-validator/