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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [go.test/] [test/] [bench/] [shootout/] [regex-dna-parallel.go] - Rev 700
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/*Redistribution and use in source and binary forms, with or withoutmodification, are permitted provided that the following conditions are met:* Redistributions of source code must retain the above copyrightnotice, this list of conditions and the following disclaimer.* Redistributions in binary form must reproduce the above copyrightnotice, this list of conditions and the following disclaimer in thedocumentation and/or other materials provided with the distribution.* Neither the name of "The Computer Language Benchmarks Game" nor thename of "The Computer Language Shootout Benchmarks" nor the names ofits contributors may be used to endorse or promote products derivedfrom this software without specific prior written permission.THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THEIMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSEARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BELIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, ORCONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OFSUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESSINTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER INCONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF SUCH DAMAGE.*//* The Computer Language Benchmarks Game* http://shootout.alioth.debian.org/** contributed by The Go Authors.*/package mainimport ("fmt""io/ioutil""os""regexp""runtime")var variants = []string{"agggtaaa|tttaccct","[cgt]gggtaaa|tttaccc[acg]","a[act]ggtaaa|tttacc[agt]t","ag[act]gtaaa|tttac[agt]ct","agg[act]taaa|ttta[agt]cct","aggg[acg]aaa|ttt[cgt]ccct","agggt[cgt]aa|tt[acg]accct","agggta[cgt]a|t[acg]taccct","agggtaa[cgt]|[acg]ttaccct",}type Subst struct {pat, repl string}var substs = []Subst{Subst{"B", "(c|g|t)"},Subst{"D", "(a|g|t)"},Subst{"H", "(a|c|t)"},Subst{"K", "(g|t)"},Subst{"M", "(a|c)"},Subst{"N", "(a|c|g|t)"},Subst{"R", "(a|g)"},Subst{"S", "(c|g)"},Subst{"V", "(a|c|g)"},Subst{"W", "(a|t)"},Subst{"Y", "(c|t)"},}func countMatches(pat string, bytes []byte) int {re := regexp.MustCompile(pat)n := 0for {e := re.FindIndex(bytes)if e == nil {break}n++bytes = bytes[e[1]:]}return n}func main() {runtime.GOMAXPROCS(4)bytes, err := ioutil.ReadAll(os.Stdin)if err != nil {fmt.Fprintf(os.Stderr, "can't read input: %s\n", err)os.Exit(2)}ilen := len(bytes)// Delete the comment lines and newlinesbytes = regexp.MustCompile("(>[^\n]+)?\n").ReplaceAll(bytes, []byte{})clen := len(bytes)mresults := make([]chan int, len(variants))for i, s := range variants {ch := make(chan int)mresults[i] = chgo func(ss string) {ch <- countMatches(ss, bytes)}(s)}lenresult := make(chan int)bb := bytesgo func() {for _, sub := range substs {bb = regexp.MustCompile(sub.pat).ReplaceAll(bb, []byte(sub.repl))}lenresult <- len(bb)}()for i, s := range variants {fmt.Printf("%s %d\n", s, <-mresults[i])}fmt.Printf("\n%d\n%d\n%d\n", ilen, clen, <-lenresult)}
