@golden-tiger/regexp-gene

Generate random string from a JS regular expression gene.

Github Repository

Candidate Character Pool (ASCII)

|ASCII Code|characters| |:--|--:| |[32, 47], [58, 64], [91, 96], [123, 126]|special character| |[48, 57]|0-9| |[65, 90]|A-Z| |[97, 122]|a-z|

How To Use gene(regExp, option)

• regExp: the regular expression gene of random string

• option.max: max length of random string, the default max length equal 10

Examples

• Plain String

gene(/foo/);
// foo

• Character Set (any candidate character in the set)

gene(/[abc]/);
// a, b, c

• Negate Set (any candidate character that is not in the set)

gene(/[^abc]/);
// any candidate character that is not in the set

• Dot (any candidate character)

gene(/./);
// any candidate character

• Word (any word character: alphanumeric & underscore)

gene(/\w/);
// a-z, A-Z, 0-9, _

• Digit (any digit character: 0-9)

gene(/\d/);
// 0-9

• Escaped Character

gene(/\\/);
// \

• Group

gene(/(foo(bar)foo)/);
// foobarfoo

• Plus (1 or more of the preceding token)

gene(/a+/);
// aaaaaa...

• Star (0 or more of the preceding token)

gene(/a*/);
// aaaaaa... or none

• Quantifier (the specified quantity of the previous token. {1,3} will match 1 to 3. {3} will match exactly 3. {3,} will match 3 or more.)

gene(/a{1,3}/);
// a or aa or aaa

• Optional (0 or 1 of the preceding token)

gene(/ab?/);
// a or ab

• Alternation (or)

gene(/a(b|c)d/);
// abd or acd