Question

Give a real-world scenario where you would be searching a target for a pattern made of both literals and metacharacters.

python

Written question, no coding.

Answer 1

literals are nothing but letters for match.while meta characters are shows the how the string is be match.

for example literals are a,b,c,1,2,6,f.....all the English letters and numbers are literals maybe some other language characters also literals coming to meta characters we have ^ , +,*,$, and so on...we have

^ this meta character shows the relation starting symbol of searching string must be after this meta character

for exmaple if we want take the employees whose name starts with only v than we used this meta character for matching

^v[a-z]+

the above regular expressions says the string or employee name starts with v later a-z any letters 1 or more will be present

here v and a-z all the letters are literals

^ and + symbols are meta characters

The another meta character is $ this symbol says the string must we end this literal

for we take same example the name must end with v letter

so the regular expression is

[a-z]+v$

like the we can use literals and meta characters for search google search engine also works based on these concepts

and we can use these in form validation weather they enter correct valid syntax or  not like all are coming to these topic

#if you have any doubt comment below..if you like give thumbs up...