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package segments
import (
"fmt"
"regexp"
)
const (
KeySegment = "^[:a-zA-Z0-9_\\.-]+$"
// KeySearchSegment = "^\\[\\.=[a-zA-Z][a-zA-Z0-9_-]*\\]$"
ExplicitIndexSegment = "^\\[[0-9]+\\]$"
ImplicitIndexSegment = "^[0-9]+$"
SliceSegment = "^\\[[0-9]+:[0-9]+\\]$"
ValueSearchSegment = "^\\[\\.[=\\^\\$\\%].+\\]$"
)
var regexps map[string]*regexp.Regexp = map[string]*regexp.Regexp{ //nolint:gochecknoglobals
KeySegment: regexp.MustCompile(KeySegment),
// KeySearchSegment: regexp.MustCompile(KeySearchSegment),
ExplicitIndexSegment: regexp.MustCompile(ExplicitIndexSegment),
ImplicitIndexSegment: regexp.MustCompile(ImplicitIndexSegment),
SliceSegment: regexp.MustCompile(SliceSegment),
ValueSearchSegment: regexp.MustCompile(ValueSearchSegment),
}
func DetectSegment(s string) (YamlPathSegment, error) {
switch {
case regexps[ImplicitIndexSegment].MatchString(s), regexps[ExplicitIndexSegment].MatchString(s):
return ParseIndexSegment(s)
case regexps[SliceSegment].MatchString(s):
return ParseSliceSegment(s)
case regexps[ValueSearchSegment].MatchString(s):
return ParseStringValueSearchSegment(s)
case regexps[KeySegment].MatchString(s):
return ParseKeySegment(s)
}
return nil, fmt.Errorf("segment '%s' not supported yet", s)
}
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