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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [go.test/] [test/] [bench/] [shootout/] [regex-dna-parallel.go] - Blame information for rev 700

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

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