40 lines
678 B
Go
40 lines
678 B
Go
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package main
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import (
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"log"
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"regexp"
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)
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func regexpSelectN(n int, regexps []string, names []string) (matches []string) {
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if n <= 0 {
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matches = make([]string, 0)
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} else {
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matches = make([]string, 0, n)
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}
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res := make([]*regexp.Regexp, 0, len(regexps))
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for _, reStr := range regexps {
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re, err := regexp.Compile(reStr)
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if err != nil {
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log.Printf("warning: invalid regexp ignored: %q: %v", reStr, err)
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continue
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}
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res = append(res, re)
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}
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namesLoop:
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for _, name := range names {
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if len(matches) == n {
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break
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}
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for _, re := range res {
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if re.MatchString(name) {
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matches = append(matches, name)
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continue namesLoop
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}
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}
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}
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return
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}
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