134 lines
3.5 KiB
Go
134 lines
3.5 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
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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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// 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 converter
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import (
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"bytes"
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"github.com/gohugoio/hugo/common/loggers"
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"github.com/gohugoio/hugo/config"
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"github.com/gohugoio/hugo/identity"
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"github.com/gohugoio/hugo/markup/converter/hooks"
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"github.com/gohugoio/hugo/markup/markup_config"
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"github.com/gohugoio/hugo/markup/tableofcontents"
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"github.com/spf13/afero"
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)
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// ProviderConfig configures a new Provider.
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type ProviderConfig struct {
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MarkupConfig markup_config.Config
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Cfg config.Provider // Site config
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ContentFs afero.Fs
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Logger loggers.Logger
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Highlight func(code, lang, optsStr string) (string, error)
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}
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// ProviderProvider creates converter providers.
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type ProviderProvider interface {
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New(cfg ProviderConfig) (Provider, error)
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}
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// Provider creates converters.
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type Provider interface {
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New(ctx DocumentContext) (Converter, error)
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Name() string
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}
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// NewProvider creates a new Provider with the given name.
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func NewProvider(name string, create func(ctx DocumentContext) (Converter, error)) Provider {
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return newConverter{
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name: name,
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create: create,
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}
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}
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type newConverter struct {
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name string
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create func(ctx DocumentContext) (Converter, error)
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}
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func (n newConverter) New(ctx DocumentContext) (Converter, error) {
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return n.create(ctx)
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}
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func (n newConverter) Name() string {
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return n.name
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}
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var NopConverter = new(nopConverter)
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type nopConverter int
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func (nopConverter) Convert(ctx RenderContext) (Result, error) {
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return &bytes.Buffer{}, nil
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}
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func (nopConverter) Supports(feature identity.Identity) bool {
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return false
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}
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// Converter wraps the Convert method that converts some markup into
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// another format, e.g. Markdown to HTML.
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type Converter interface {
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Convert(ctx RenderContext) (Result, error)
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Supports(feature identity.Identity) bool
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}
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// Result represents the minimum returned from Convert.
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type Result interface {
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Bytes() []byte
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}
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// DocumentInfo holds additional information provided by some converters.
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type DocumentInfo interface {
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AnchorSuffix() string
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}
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// TableOfContentsProvider provides the content as a ToC structure.
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type TableOfContentsProvider interface {
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TableOfContents() tableofcontents.Root
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}
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// AnchorNameSanitizer tells how a converter sanitizes anchor names.
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type AnchorNameSanitizer interface {
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SanitizeAnchorName(s string) string
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}
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// Bytes holds a byte slice and implements the Result interface.
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type Bytes []byte
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// Bytes returns itself
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func (b Bytes) Bytes() []byte {
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return b
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}
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// DocumentContext holds contextual information about the document to convert.
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type DocumentContext struct {
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Document interface{} // May be nil. Usually a page.Page
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DocumentID string
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DocumentName string
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Filename string
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ConfigOverrides map[string]interface{}
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}
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// RenderContext holds contextual information about the content to render.
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type RenderContext struct {
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Src []byte
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RenderTOC bool
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RenderHooks hooks.Renderers
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}
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var FeatureRenderHooks = identity.NewPathIdentity("markup", "renderingHooks")
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