BREAKING: update mautrix to 0.15.x

vendor/maunium.net/go/mautrix/format/mdext/filteredparser.go

@@ -0,0 +1,48 @@
+// Copyright (c) 2023 Tulir Asokan
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package mdext
+
+import (
+	"reflect"
+
+	"github.com/yuin/goldmark/parser"
+	"github.com/yuin/goldmark/util"
+)
+
+func filterParsers(list []util.PrioritizedValue, forbidden map[reflect.Type]struct{}) []util.PrioritizedValue {
+	n := 0
+	for _, item := range list {
+		if _, isForbidden := forbidden[reflect.TypeOf(item.Value)]; isForbidden {
+			continue
+		}
+		list[n] = item
+		n++
+	}
+	return list[:n]
+}
+
+// ParserWithoutFeatures returns a Goldmark parser with the provided default features removed.
+//
+// e.g. to disable lists, use
+//
+//	markdown := goldmark.New(goldmark.WithParser(
+//		mdext.ParserWithoutFeatures(goldmark.NewListParser(), goldmark.NewListItemParser())
+//	))
+func ParserWithoutFeatures(features ...any) parser.Parser {
+	forbiddenTypes := make(map[reflect.Type]struct{}, len(features))
+	for _, feature := range features {
+		forbiddenTypes[reflect.TypeOf(feature)] = struct{}{}
+	}
+	filteredBlockParsers := filterParsers(parser.DefaultBlockParsers(), forbiddenTypes)
+	filteredInlineParsers := filterParsers(parser.DefaultInlineParsers(), forbiddenTypes)
+	filteredParagraphTransformers := filterParsers(parser.DefaultParagraphTransformers(), forbiddenTypes)
+	return parser.NewParser(
+		parser.WithBlockParsers(filteredBlockParsers...),
+		parser.WithInlineParsers(filteredInlineParsers...),
+		parser.WithParagraphTransformers(filteredParagraphTransformers...),
+	)
+}