CODEWITHSUNDEEP
javascriptregex
thealpha93
thealpha93

Reputation: 778

Javascript: Regexp search and extract strings inside "{ }"

This is the string I want to search in.

Make {The Most|One of the most} Out Of Your {Real Estate|Realty|Property} {Purchase|Acquisition} When You {Follow|Comply With|Adhere To} { something } These Tips

It should search for and return parts of strings that are enclosed in curly braces { } and must contain one or more pipe | symbol inside them.

Following is the regexp I came up with but it doesn't work.

/^{?([^{]*\|)*}$

Expected Output

[{The Most|One of the most}, {Real Estate|Realty|Property}, {Real Estate|Realty|Property}, {Purchase|Acquisition}, {Follow|Comply With|Adhere To}]

Note that { something } shouldn't be a part of the output. Thanks in advance

Upvotes: 2

Views: 98

Answers (2)

Teneff
Teneff

Reputation: 32158

You can use positive lookahead to match the pipe | like this:

const str = `Make {The Most|One of the most} Out {klm} Of Your {Real Estate|Realty|Property} {Purchase|Acquisition} When {|} You {Follow|Comply With|Adhere To} { something } These Tips
`;

const result = str.match(/{[^{}]*(?=\|)[^}]*}+/g);

console.log(result)

Upvotes: 2

The fourth bird
The fourth bird

Reputation: 163217

You might use 2 negated character classes, making sure to match at least 1 times a pipe.

You could change the quantifier to + if there should be at least a single char (note that this could also be a single space)

{[^{}|]*\|[^{}]*}

Explanation

  • { Match {
  • [^{}|\n]* Match 0+ times any char except { }, | or newline
  • \| Match |
  • [^{}\n]* Match 0+ times any char except { or } or newline (which allows also another |)
  • } Match }

Regex demo

const regex = /{[^{}|\n]*\|[^{}\n]*}/g;
const str = `Make {The Most|One of the most} Out Of Your {Real Estate|Realty|Property} {Purchase|Acquisition} When You {Follow|Comply With|Adhere To} { something } These Tips`;
console.log(str.match(regex));

If there has to be a non whitespace char other that | { and } before and after the pipe:

{[^\S\n]*[^\s{}|][^{}|]*\|[^\S\n]*[^\s{}|][^{}]*}

Explanation

  • { Match opening {
  • [^\S\n]* Match 0+ whitespace chars except a newline
  • [^\s{}|] Match a non whitespace char other than { } or |
  • [^{}|]* Match 0+ times any char other than { } or |
  • \| Match |
  • [^\S\n]* Match 0+ whitespace chars except a newline
  • [^\s{}|] Match a non whitespace char other than { } or |
  • [^{}]* Match 0+ times any char other than { } or |
  • } Match closing }

Regex demo

Upvotes: 5

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