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// Copyright 2019 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package markup
import (
"strings"
"github.com/gohugoio/hugo/markup/highlight"
"github.com/gohugoio/hugo/markup/markup_config"
"github.com/gohugoio/hugo/markup/goldmark"
"github.com/gohugoio/hugo/markup/org"
"github.com/gohugoio/hugo/markup/asciidoc"
"github.com/gohugoio/hugo/markup/blackfriday"
"github.com/gohugoio/hugo/markup/converter"
"github.com/gohugoio/hugo/markup/mmark"
"github.com/gohugoio/hugo/markup/pandoc"
"github.com/gohugoio/hugo/markup/rst"
)
func NewConverterProvider(cfg converter.ProviderConfig) (ConverterProvider, error) {
converters := make(map[string]converter.Provider)
markupConfig, err := markup_config.Decode(cfg.Cfg)
if err != nil {
return nil, err
}
if cfg.Highlight == nil {
h := highlight.New(markupConfig.Highlight)
cfg.Highlight = func(code, lang, optsStr string) (string, error) {
return h.Highlight(code, lang, optsStr)
}
}
cfg.MarkupConfig = markupConfig
add := func(p converter.ProviderProvider, aliases ...string) error {
c, err := p.New(cfg)
if err != nil {
return err
}
name := c.Name()
aliases = append(aliases, name)
if strings.EqualFold(name, cfg.MarkupConfig.DefaultMarkdownHandler) {
aliases = append(aliases, "markdown")
}
addConverter(converters, c, aliases...)
return nil
}
if err := add(goldmark.Provider); err != nil {
return nil, err
}
if err := add(blackfriday.Provider); err != nil {
return nil, err
}
if err := add(mmark.Provider); err != nil {
return nil, err
}
if err := add(asciidoc.Provider, "ad", "adoc"); err != nil {
return nil, err
}
if err := add(rst.Provider); err != nil {
return nil, err
}
if err := add(pandoc.Provider, "pdc"); err != nil {
return nil, err
}
if err := add(org.Provider); err != nil {
return nil, err
}
return &converterRegistry{
config: cfg,
converters: converters,
}, nil
}
type ConverterProvider interface {
Get(name string) converter.Provider
//Default() converter.Provider
GetMarkupConfig() markup_config.Config
Highlight(code, lang, optsStr string) (string, error)
}
type converterRegistry struct {
// Maps name (md, markdown, blackfriday etc.) to a converter provider.
// Note that this is also used for aliasing, so the same converter
// may be registered multiple times.
// All names are lower case.
converters map[string]converter.Provider
config converter.ProviderConfig
}
func (r *converterRegistry) Get(name string) converter.Provider {
return r.converters[strings.ToLower(name)]
}
func (r *converterRegistry) Highlight(code, lang, optsStr string) (string, error) {
return r.config.Highlight(code, lang, optsStr)
}
func (r *converterRegistry) GetMarkupConfig() markup_config.Config {
return r.config.MarkupConfig
}
func addConverter(m map[string]converter.Provider, c converter.Provider, aliases ...string) {
for _, alias := range aliases {
m[alias] = c
}
}
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