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package caddyscript
import (
"fmt"
"regexp"
"go.starlark.net/starlark"
)
// Regexp represents a regexp type for caddyscript.
type Regexp struct{}
// AttrNames defines what properties and methods are available on the Time type.
func (r Regexp) AttrNames() []string {
return []string{"match_string"}
}
// Attr defines what happens when props or methods are called on the Time type.
func (r Regexp) Attr(name string) (starlark.Value, error) {
switch name {
case "match_string":
b := starlark.NewBuiltin("match_string", r.MatchString)
b = b.BindReceiver(r)
return b, nil
}
return nil, nil
}
// MatchString reports whether the string s contains any match of the regular expression pattern. More complicated queries need to use Compile and the full Regexp interface.
func (r Regexp) MatchString(thread *starlark.Thread, fn *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
var pattern, match string
err := starlark.UnpackPositionalArgs(fn.Name(), args, kwargs, 2, &pattern, &match)
if err != nil {
return starlark.None, fmt.Errorf("could not unpack args: %v", err.Error())
}
matched, err := regexp.MatchString(pattern, match)
if err != nil {
return starlark.False, fmt.Errorf("matchstring: %v", err.Error())
}
return starlark.Bool(matched), nil
}
func (r Regexp) Freeze() {}
func (r Regexp) Hash() (uint32, error) { return 0, fmt.Errorf("unhashable: Regexp") }
func (r Regexp) String() string { return "Regexp" }
func (r Regexp) Type() string { return "Regexp" }
func (r Regexp) Truth() starlark.Bool { return true }
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