mirror of
https://github.com/caddyserver/caddy.git
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65 lines
2.2 KiB
Go
65 lines
2.2 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package caddyscript
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import (
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"fmt"
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"regexp"
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"go.starlark.net/starlark"
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)
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// Regexp represents a regexp type for caddyscript.
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type Regexp struct{}
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// AttrNames defines what properties and methods are available on the Time type.
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func (r Regexp) AttrNames() []string {
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return []string{"match_string"}
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}
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// Attr defines what happens when props or methods are called on the Time type.
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func (r Regexp) Attr(name string) (starlark.Value, error) {
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switch name {
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case "match_string":
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b := starlark.NewBuiltin("match_string", r.MatchString)
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b = b.BindReceiver(r)
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return b, nil
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}
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return nil, nil
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}
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// 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.
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func (r Regexp) MatchString(thread *starlark.Thread, fn *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
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var pattern, match string
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err := starlark.UnpackPositionalArgs(fn.Name(), args, kwargs, 2, &pattern, &match)
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if err != nil {
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return starlark.None, fmt.Errorf("could not unpack args: %v", err.Error())
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}
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matched, err := regexp.MatchString(pattern, match)
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if err != nil {
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return starlark.False, fmt.Errorf("matchstring: %v", err.Error())
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}
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return starlark.Bool(matched), nil
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}
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func (r Regexp) Freeze() {}
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func (r Regexp) Hash() (uint32, error) { return 0, fmt.Errorf("unhashable: Regexp") }
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func (r Regexp) String() string { return "Regexp" }
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func (r Regexp) Type() string { return "Regexp" }
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func (r Regexp) Truth() starlark.Bool { return true }
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