/
patterns-list.go
68 lines (52 loc) · 1.11 KB
/
patterns-list.go
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package analyzer
import (
"fmt"
"regexp"
)
type PatternsList []*regexp.Regexp
// MatchesAny matches provided string against all regexps in a slice.
func (l PatternsList) MatchesAny(str string) bool {
for _, r := range l {
if r.MatchString(str) {
return true
}
}
return false
}
// newPatternsList parses slice of strings to a slice of compiled regular
// expressions.
func newPatternsList(in []string) (PatternsList, error) {
list := PatternsList{}
for _, str := range in {
re, err := strToRegexp(str)
if err != nil {
return nil, err
}
list = append(list, re)
}
return list, nil
}
type reListVar struct {
values *PatternsList
}
func (v *reListVar) Set(value string) error {
re, err := strToRegexp(value)
if err != nil {
return err
}
*v.values = append(*v.values, re)
return nil
}
func (v *reListVar) String() string {
return ""
}
func strToRegexp(str string) (*regexp.Regexp, error) {
if str == "" {
return nil, ErrEmptyPattern
}
re, err := regexp.Compile(str)
if err != nil {
return nil, fmt.Errorf("unable to compile %s as regular expression: %w", str, err)
}
return re, nil
}