CODEWITHSUNDEEP
javascriptregex
Moka
Moka

Reputation: 93

Extract words using regex

I have a string query and I want to match and extract specif words. when I have this word word.EXACT extract the container of this word

like MESH.EXACT("blood glucose monitoring") extract the word "blood glucose monitoring"

Query_Input= (EMB.EXACT("insulin treatment")) and (MESH.EXACT("blood glucose monitoring")) OR "Self-Monitoring of Blood Glucose”

the output needs to be like that

Query_out="insulin treatment" "blood glucose monitoring" "Self-Monitoring of Blood Glucose”

this Demo has my regexp and my regex : https://regex101.com/r/rqpmXr/15

Upvotes: 1

Views: 1892

Answers (4)

builder-7000
builder-7000

Reputation: 7627

You could do:

(?<=\w\.EXACT\()[^)]+

see the regex demo. Match any char that is not a closing parenthesis, [^)]+, only when preceded by \w\.EXACT(.

If you want a substitution you could capture the above match and use \1 (note the trailing space) for the repacement:

.*(?<=\w\.EXACT\()([^)]+).*\n|.*

as shown here: https://regex101.com/r/BS3nwr/4

Edit: As was brought to my attention in one of the comments, look-behinds (?<=) are not supported in some web browsers so you could use (note this regex is slower (requires more steps) than the previous one): 

\w+\.EXACT\(([^)]+).*\n|.*?

Upvotes: 1

Wiktor Stribiżew
Wiktor Stribiżew

Reputation: 626747

You may use

/\w+\.EXACT\(([^)]*)\)/g

and replace with $1, placeholder holding Group 1 value. See the regex demo.

Pattern details

  • \w+ - 1 or more word chars
  • \.EXACT\( - a literal .EXACT( substring
  • ([^)]*) - Group 1: any 0+ chars other than ) (you may use [^()]* in case you need to make sure you are staying within 1 set of (...))
  • \) - a ) char.

See the JS demo:

var s = 'MESH.EXACT("blood glucose monitoring") words tt.EXACT("blood glucose monitoring") ';
var rx = /\w+\.EXACT\(([^)]*)\)/g;
document.querySelector("#result").innerHTML = s.replace(rx, "$1");
<div id="result" />

Upvotes: 1

gil.fernandes
gil.fernandes

Reputation: 14601

Here is an executable Javascript example which extracts the output you specified from the input you specified:

let input = "(EMB.EXACT(\"insulin treatment\")) and (MESH.EXACT(\"blood glucose monitoring\")) OR \"Self-Monitoring of Blood Glucose\"";

let re = /(?:EXACT\(("[^"]+")\)|OR\s*("[^"]+"))/g;

let Query_out = [];
while ((match = re.exec(input)) !== null) {
  Query_out.push(match[1] ? match[1] : match[2]);
}

console.log(Query_out.join(" "));

Upvotes: 0

Hiteshdua1
Hiteshdua1

Reputation: 2286

Hi I believe this would work :

.EXACT\((.*?)\)

Working Example : https://regex101.com/r/uQj2vv/2/

Upvotes: 0

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