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asFewOfPattern

Match pattern as few times as possible

Description

example

newpat = asFewOfPattern(pat) creates a pattern that matches as few consecutive instances of pat as possible, including zero times.

example

newpat = asFewOfPattern(pat,minPattern) specifies a minimum number of consecutive instances to match with minPattern.

example

newpat = asFewOfPattern(pat,minPattern,maxPattern) specifies a minimum and a maximum number of consecutive instances to match. asFewOfPattern matches at least minPattern consecutive instances, but no more than maxPattern.

Examples

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Use asFewOfPattern to match as few individual letters as possible between two instances of "b".

Create txt as a string. Create a pattern, pat, that matches as few of the letters "a" or "b" as possible between two instances of the character "b".

txt = "bb bab babab babaaabab";
pat = "b" + asFewOfPattern("a"|"b") + "b";

Use replace to replace text matched by pat with the character "*".

replace(txt,pat,"*")
ans = 
"* * *ab *aaa*"

Use asFewOfPattern to match as few individual letters as possible between two instances of "b" but require at least three letters.

Create txt as a string. Create a pattern, pat, that matches as few of the letters "a" or "b" possible between two instances of the character "b", but specify that there must be a minimum of three matched letters.

txt = "bb bab babab babaaabab";
pat = "b" + asFewOfPattern("a"|"b",3) + "b";

Use replace to replace text matched by pat with the character "*".

replace(txt,pat,"*")
ans = 
"bb bab * *ab"

Use asFewOfPattern to match as few individual letters as possible between two instances of "b", but require at least three and no more than four letters.

Create txt as a string. Create a pattern, pat, that will match as few of the letters "a" or "b" as possible between two instances of the character "b", but specify that there must be a minimum of three and no more than four letters.

txt = "bb bab babab babaaabab";
pat = "b" + asFewOfPattern("a"|"b",3,4) + "b";

Use replace to replace text matched by pat with the character "*".

replace(txt,pat,"*")
ans = 
"bb bab * ba*ab"

Input Arguments

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Input pattern, specified as a pattern, string array, character vector, or cell array of character vectors.

Data Types: char | string | pattern | cell

Minimum number of consecutive instances to match, specified as a nonnegative integer scalar.

Data Types: single | double

Maximum number of consecutive instances to match, specified as a nonnegative integer scalar.

Data Types: single | double

Output Arguments

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Output pattern, returned as a pattern or an array of pattern objects.

Introduced in R2020b