Regular expressions can be used to target a specific sentence that contains multiple words

Question

Regular expressions can be used to target a specific sentence that contains multiple words

With this regular expression, I am able to choose a sentence based on a single word:

[^.]* word [^.]*\.

Is there a way to select a sentence with two or more words conditionally?

For instance, how would I go about selecting a sentence if word A and either word B or word C are present?

Assume that word A = "findings", word B = "support", word C = "research". In this scenario, the sentence below would be chosen as both conditions are met:

Their research findings strongly support the theory proposed in the study.

However, the sentence below would not be selected since it only contains one of the specified words:

Results showed conclusive evidence regarding the impact of their research findings on the community.

javascript regex conditional-statements

Answer 1

Answer №1

I would recommend using the following regex pattern:

\bworda\b[^.!?]*\b(?:wordb|wordc)\b

This regex will identify a sentence if it includes worda, along with either wordb or wordc, without being separated by punctuation marks.

If you prefer to match the words in any order, you can use this regex pattern:

^(?=[^.!?]*\bstudies\b)(?=[^.!?]*\b(?:suggest|evidence)\b)[^.!?]*\.$

var test = [
'Our studies suggest that ACTN3 R577X genotype is a modifier of clinical phenotype in DMD patients.',
'Moreover, studies of the RR genotype have shown a downward linear trend with increased incidences of ankle sprain.',
'Moreover, studies of the evidence of ankle sprain.',
'Moreover, evidence of the studies of ankle sprain.',
'Moreover, the incidences of ankle sprain.'
];
console.log(test.map(function (a) {
  return a+' :'+/^(?=[^.!?]*\bstudies\b)(?=[^.!?]*\b(?:suggest|evidence)\b)[^.!?]*\.$/i.test(a);
}));

Answer 2

I would recommend using the following regex pattern:

\bworda\b[^.!?]*\b(?:wordb|wordc)\b

This regex will identify a sentence if it includes worda, along with either wordb or wordc, without being separated by punctuation marks.

If you prefer to match the words in any order, you can use this regex pattern:

^(?=[^.!?]*\bstudies\b)(?=[^.!?]*\b(?:suggest|evidence)\b)[^.!?]*\.$

var test = [
'Our studies suggest that ACTN3 R577X genotype is a modifier of clinical phenotype in DMD patients.',
'Moreover, studies of the RR genotype have shown a downward linear trend with increased incidences of ankle sprain.',
'Moreover, studies of the evidence of ankle sprain.',
'Moreover, evidence of the studies of ankle sprain.',
'Moreover, the incidences of ankle sprain.'
];
console.log(test.map(function (a) {
  return a+' :'+/^(?=[^.!?]*\bstudies\b)(?=[^.!?]*\b(?:suggest|evidence)\b)[^.!?]*\.$/i.test(a);
}));

Answer 3

Answer №2

One possible solution:

\b\[a-zA-Z]+\b(?=\s*(test|example))

\b represents a word boundary, enabling a search limited to whole words.

[a-zA-Z] will match any word (consisting of one or more characters).

(?=) serves as a lookahead.

(test|example) will return true if it finds either test or example.

See it in action at this regex101 link.

Answer 4

One possible solution:

\b\[a-zA-Z]+\b(?=\s*(test|example))

\b represents a word boundary, enabling a search limited to whole words.

[a-zA-Z] will match any word (consisting of one or more characters).

(?=) serves as a lookahead.

(test|example) will return true if it finds either test or example.

See it in action at this regex101 link.

Regular expressions can be used to target a specific sentence that contains multiple words

Answer №1

Answer №2

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