Library to generate a random pattern from which a given String is guaranteed to match.
Example:
"Hello World!"may produce:
[c-f]l{1,2}\w\sWo[^ras2]l*d
#Usage:
String pattern = PatternGenerator.random(CharRange charRange, String string);or using an infinite Stream:
Stream<String> patternStream = PatternGenerator.stream(CharRange charRange, String string);#Benchmark
Results from running program against variable input lengths 10,000 times to gather average performance. Performed single threaded on ASUS X555LD, Ubuntu 16.04.
Additional benchmarking can be found on the images folder.
#Samples
Here are examples of 100 elements of the stream given the input (CharRange.LATIN_PRINTABLE, "Hello World!")
\D+\w{2,6}\s\D{1,2}[h-x]+[\[-k]\D
[^3 O\*]+[e-v]{1,} [^E<]*!
H[^\|Up]l*o*\D{0,}\D+
H[^s]*?\w{2}\D{1,5}[^Xy]\D{3,}
H\S{2}[^\(]{8,9}
[^16=]*
\D*\wl\w\W*W[h-q][o-z]\w*[^\*]{2}
H\Dl*o\D+
\S{4}[m-u] [T-Y]o\S*\D{2,}
He[i-s]{2}o[ -"]W\D{2,}\Dd[ -#]
\D\S+\s\S{3,5}\w\S\W
[A-J]e[^p%]*[^U~/]\w*[^CB]
\D{3,7}o?\D{5,6}d!
\S* \D*
[A-I]e?l*\D*\S\D*
H[^9u!]+[^BZ]?\D{2,}\D{3}
[^\\#]{0,3}\S+[^I;\(]\D{3}\w{2}\W?
\S[^Q8]{4,}\D+\S+
\S{0,2}\S{2,}[^\.gi][P-\]][m-v]{2}\w*[ -\&]
H\w+\w{0,2} \w{4,}[^TL']
H\w+\D\S+\S*
\w{3}l\w\s[T-_]\wr\D+
\S{0,}\S{3,}\D*\w+\D{2}[ -\+]
\D+\D{4,}\S{4,}
\w*[^U]{7,}d\W
He\Sl\w\s\S{0,4}\w{2,}\W
\D*\S{1,2} \w*[^pT]
[^9B]{3}\D*[^32\[]*
H\S{2,}\D{3,}\S{2,}
\S{5} Wo\w{3}?[^\]]
H\D{1,4}\S[ -\)]\S\wr[^k]{3}
H\w{4,4} \Do\S{3,4}
[^"_]{2}\D{3,3}[^\^]{7,10}
[^;/D]{3,}[ -\$][V-`]\w*[^M]{1,}
\w[^E#5]+
[C-I]?[\\-g]\D{3,}\w{4}!
[D-P]\D[^\.]{1,}?[k-p][^bdK]{1,}o[^%pz]+[^\(2]
\w{4}[^`]+[i-m]\S*
H[^:<]+[^gZ]+\s\D{4,}
\S[^9\)][e-p]\D{2,}[ -!]\w{0,}\D\D*
\D{3,6}\D*\s\D\S\S{4}
H\S{2,4}[^y\{/]*\D*[ -\(]
\w[a-k]\w\w{2}[ -\&]\D{4,}
H?\S[^/g]{3}\W\D+\S{2,4}[^D]!
H\D\w{3,6}\D[^Z]{6}
\S{1,3}\w*[ -\&][^b=]{5}[^\('G]
\w[^w]*\w{3,5}?[ -#]\D\S*
[^~>f>]*[^A]+\S{0,2}[o-v]\D{2,}!
H[\[-f][^N/]lo\D*
\S{1,}[^V9;]{4,6}o\w{3}\S
[G-K]e\D\S{2} W[^\-]r\D*
[@-M]?[^da]\S{2,6}\s[Q-`]\w*!
\w*\w\D+o[^~o]?[^t~ ]{1,}
\S+\D{2,}[^Y]\D{4}[^a]+
[^x]+[^l\)1a]{3,}l\S{2}
\S[^\$6]*
[^2\- ]{1,5}\S{1,}\W[V-`]\w[^\[RG]{3,}
\w*[^0\(]{4,}?\S{4,5}\W
H\w\S{2,}\D[^qI]+[e-v][^pQg][^h#i]
[^nXp][^ML]+[h-y]\DW\w\w{2,}\D
He\D*[^KD]*\D+
[D-O]\w{1,4}o \D{5,6}
[^Nl]e\S{3,} \w{2,}\w{2,3}\W
\w{3,}? [T-X]\D+!
[^mf\|m]{7}\w*l[b-i]\W
\S{2,7}[e-u]\WWo[^kZ][h-o]*[^@'%]{0,}
[^\(]+[i-r][h-r]{2} \S*?[^s\{o][\\-g][ -\(]
H\S+[ -']\w\S\w{1,3}\S
[\?-P]\D+l[b-f][^\|u]
\D+\D*[^\*]W\S\D{2,}[_-e]!
\w{5,}[ -\(]?\S*[^ ]{2,6}
\D{0,2}[^_][h-m]\S\D{4}[d-p]+\W
\S*[ -\)]\w+\S{2,3}[ -\)]
[G-Q]\S{3,}\D? [U-\]][i-s]{2,}?\w[ -\+]
H\S+\W\D\S{4,7}
[^0#w\|]\S{2}?[^A]?o [^EJ~]{1,}r\S{3,}
He\S+\W\D{0,2}r\D+[ -\*]
\w{5,}\s*\S[j-u]{2,}?[`-k]*\S
\w{2,5}\w{1,3}\s\S+\D[^\+h]\w\W
[F-I][c-o]{4,} [V-Y][f-y]{3}[\]-f]?\D
\S\S*[^\-<x]*\D*[d-t]d\W
[@-N]\D*[g-t]{2}[ -#][^M]{5,8}[^j"\^]
[^'\&R]{4}\w\s\D{1,}\D+[^"8]
\S{4,5}\w[ -#][T-\^]\w*[^\|R]+\W
\D{3,7}\W\D{2,4}\D{1,5}\W
H[_-j]l*o[ -#]\So[^U80x]{4,}
\w{4}\S\W\S+\D{3}\S
[^i_r]*\S\W*\w*\S{1,}
[F-Q]e\D{3}\D\w{1,2}r[k-m]\w\D
H*\D{3}\w\W\S\S{2,5}?[^w7f][\^-n][^pX]
\D{2,}[n-q]\W\w+\w*!
\w*\w[^Am]W\Drl[^4312]{2}
\D\S+\s[U-\\]*\D\w*[ -\*]
\D{3,4}\w\w\D?W?\S{5}
\D*\S[ -#][^7T]{3}\w[\^-e]?[^n\\q]
\w*\w*[^aLH]{3}[^dK]{1,}?d!
\w*[g-t]\D{3}\D\D*\S?
\D*[^9]\D[c-s]{2,}[ -!]\w{2,5}\w[_-k][^\]]
H\S[^W`]{3,} \D+\D\S
\D{1,}[^q\\\\]{1,}\W\D*\w[^%_gF]