In this recipe, we will see how an HTML code may be read and interpreted using regular expressions. We will create a program that will read an HTML stream in a string and will display the tag names along with the content of the tags. The FIND and replace statements are used together with a do loop. (This recipe will focus on reading tags beginning with <tag> and ending with <\tag>).
For creating a program for interpreting HTML code, follow the steps shown in the following steps:
Declare three strings by the name
htmlstream,tagcontents, andtagname.We then assign a suitable HTML code to the
htmlstreamvariable.Within a do loop, a
FIND REGEXstatement is added that finds tag names and their contents. The regex used in this case for matching an HTML tag is'<(\u\w*)[^>]*>(.*)</\1>'.Once a tag is processed, a
replace all occurrencesstatement is used for replacing the tag with'$$$'.The tag name and tag contents are printed.
Once...