mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-07 20:30:36 -05:00
714 lines
18 KiB
Go
714 lines
18 KiB
Go
// 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 hugolib
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"html/template"
|
|
"strings"
|
|
"sync"
|
|
|
|
"github.com/gohugoio/hugo/common/text"
|
|
"github.com/gohugoio/hugo/common/types/hstring"
|
|
"github.com/gohugoio/hugo/identity"
|
|
"github.com/gohugoio/hugo/markup"
|
|
"github.com/gohugoio/hugo/media"
|
|
"github.com/gohugoio/hugo/parser/pageparser"
|
|
"github.com/mitchellh/mapstructure"
|
|
"github.com/spf13/cast"
|
|
|
|
"github.com/gohugoio/hugo/markup/converter/hooks"
|
|
"github.com/gohugoio/hugo/markup/goldmark/hugocontext"
|
|
"github.com/gohugoio/hugo/markup/highlight/chromalexers"
|
|
"github.com/gohugoio/hugo/markup/tableofcontents"
|
|
|
|
"github.com/gohugoio/hugo/markup/converter"
|
|
|
|
bp "github.com/gohugoio/hugo/bufferpool"
|
|
"github.com/gohugoio/hugo/tpl"
|
|
|
|
"github.com/gohugoio/hugo/helpers"
|
|
"github.com/gohugoio/hugo/output"
|
|
"github.com/gohugoio/hugo/resources/page"
|
|
"github.com/gohugoio/hugo/resources/resource"
|
|
)
|
|
|
|
var (
|
|
nopTargetPath = targetPathsHolder{}
|
|
nopPagePerOutput = struct {
|
|
resource.ResourceLinksProvider
|
|
page.ContentProvider
|
|
page.PageRenderProvider
|
|
page.PaginatorProvider
|
|
page.TableOfContentsProvider
|
|
page.AlternativeOutputFormatsProvider
|
|
|
|
targetPather
|
|
}{
|
|
page.NopPage,
|
|
page.NopPage,
|
|
page.NopPage,
|
|
page.NopPage,
|
|
page.NopPage,
|
|
page.NopPage,
|
|
nopTargetPath,
|
|
}
|
|
)
|
|
|
|
func newPageContentOutput(po *pageOutput) (*pageContentOutput, error) {
|
|
cp := &pageContentOutput{
|
|
po: po,
|
|
renderHooks: &renderHooks{},
|
|
otherOutputs: make(map[uint64]*pageContentOutput),
|
|
}
|
|
return cp, nil
|
|
}
|
|
|
|
type renderHooks struct {
|
|
getRenderer hooks.GetRendererFunc
|
|
init sync.Once
|
|
}
|
|
|
|
// pageContentOutput represents the Page content for a given output format.
|
|
type pageContentOutput struct {
|
|
po *pageOutput
|
|
|
|
// Other pages involved in rendering of this page,
|
|
// typically included with .RenderShortcodes.
|
|
otherOutputs map[uint64]*pageContentOutput
|
|
|
|
contentRenderedVersion uint32 // Incremented on reset.
|
|
contentRendered bool // Set on content render.
|
|
|
|
// Renders Markdown hooks.
|
|
renderHooks *renderHooks
|
|
}
|
|
|
|
func (pco *pageContentOutput) trackDependency(idp identity.IdentityProvider) {
|
|
pco.po.p.dependencyManagerOutput.AddIdentity(idp.GetIdentity())
|
|
}
|
|
|
|
func (pco *pageContentOutput) Reset() {
|
|
if pco == nil {
|
|
return
|
|
}
|
|
pco.contentRenderedVersion++
|
|
pco.contentRendered = false
|
|
pco.renderHooks = &renderHooks{}
|
|
}
|
|
|
|
func (pco *pageContentOutput) Fragments(ctx context.Context) *tableofcontents.Fragments {
|
|
return pco.po.p.m.content.mustContentToC(ctx, pco).tableOfContents
|
|
}
|
|
|
|
func (pco *pageContentOutput) RenderShortcodes(ctx context.Context) (template.HTML, error) {
|
|
content := pco.po.p.m.content
|
|
source, err := content.pi.contentSource(content)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
ct, err := content.contentToC(ctx, pco)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
var insertPlaceholders bool
|
|
var hasVariants bool
|
|
cb := setGetContentCallbackInContext.Get(ctx)
|
|
if cb != nil {
|
|
insertPlaceholders = true
|
|
}
|
|
c := make([]byte, 0, len(source)+(len(source)/10))
|
|
for _, it := range content.pi.itemsStep2 {
|
|
switch v := it.(type) {
|
|
case pageparser.Item:
|
|
c = append(c, source[v.Pos():v.Pos()+len(v.Val(source))]...)
|
|
case pageContentReplacement:
|
|
// Ignore.
|
|
case *shortcode:
|
|
if !insertPlaceholders || !v.insertPlaceholder() {
|
|
// Insert the rendered shortcode.
|
|
renderedShortcode, found := ct.contentPlaceholders[v.placeholder]
|
|
if !found {
|
|
// This should never happen.
|
|
panic(fmt.Sprintf("rendered shortcode %q not found", v.placeholder))
|
|
}
|
|
|
|
b, more, err := renderedShortcode.renderShortcode(ctx)
|
|
if err != nil {
|
|
return "", fmt.Errorf("failed to render shortcode: %w", err)
|
|
}
|
|
hasVariants = hasVariants || more
|
|
c = append(c, []byte(b)...)
|
|
|
|
} else {
|
|
// Insert the placeholder so we can insert the content after
|
|
// markdown processing.
|
|
c = append(c, []byte(v.placeholder)...)
|
|
}
|
|
default:
|
|
panic(fmt.Sprintf("unknown item type %T", it))
|
|
}
|
|
}
|
|
|
|
if hasVariants {
|
|
pco.po.p.pageOutputTemplateVariationsState.Add(1)
|
|
}
|
|
|
|
if cb != nil {
|
|
cb(pco, ct)
|
|
}
|
|
|
|
if tpl.Context.IsInGoldmark.Get(ctx) {
|
|
// This content will be parsed and rendered by Goldmark.
|
|
// Wrap it in a special Hugo markup to assign the correct Page from
|
|
// the stack.
|
|
return template.HTML(hugocontext.Wrap(c, pco.po.p.pid)), nil
|
|
}
|
|
|
|
return helpers.BytesToHTML(c), nil
|
|
}
|
|
|
|
func (pco *pageContentOutput) Content(ctx context.Context) (any, error) {
|
|
r, err := pco.po.p.m.content.contentRendered(ctx, pco)
|
|
return r.content, err
|
|
}
|
|
|
|
func (pco *pageContentOutput) TableOfContents(ctx context.Context) template.HTML {
|
|
return pco.po.p.m.content.mustContentToC(ctx, pco).tableOfContentsHTML
|
|
}
|
|
|
|
func (p *pageContentOutput) Len(ctx context.Context) int {
|
|
return len(p.mustContentRendered(ctx).content)
|
|
}
|
|
|
|
func (pco *pageContentOutput) mustContentRendered(ctx context.Context) contentSummary {
|
|
r, err := pco.po.p.m.content.contentRendered(ctx, pco)
|
|
if err != nil {
|
|
pco.fail(err)
|
|
}
|
|
return r
|
|
}
|
|
|
|
func (pco *pageContentOutput) mustContentPlain(ctx context.Context) contentPlainPlainWords {
|
|
r, err := pco.po.p.m.content.contentPlain(ctx, pco)
|
|
if err != nil {
|
|
pco.fail(err)
|
|
}
|
|
return r
|
|
}
|
|
|
|
func (pco *pageContentOutput) fail(err error) {
|
|
pco.po.p.s.h.FatalError(pco.po.p.wrapError(err))
|
|
}
|
|
|
|
func (pco *pageContentOutput) Plain(ctx context.Context) string {
|
|
return pco.mustContentPlain(ctx).plain
|
|
}
|
|
|
|
func (pco *pageContentOutput) PlainWords(ctx context.Context) []string {
|
|
return pco.mustContentPlain(ctx).plainWords
|
|
}
|
|
|
|
func (pco *pageContentOutput) ReadingTime(ctx context.Context) int {
|
|
return pco.mustContentPlain(ctx).readingTime
|
|
}
|
|
|
|
func (pco *pageContentOutput) WordCount(ctx context.Context) int {
|
|
return pco.mustContentPlain(ctx).wordCount
|
|
}
|
|
|
|
func (pco *pageContentOutput) FuzzyWordCount(ctx context.Context) int {
|
|
return pco.mustContentPlain(ctx).fuzzyWordCount
|
|
}
|
|
|
|
func (pco *pageContentOutput) Summary(ctx context.Context) template.HTML {
|
|
return pco.mustContentPlain(ctx).summary
|
|
}
|
|
|
|
func (pco *pageContentOutput) Truncated(ctx context.Context) bool {
|
|
return pco.mustContentPlain(ctx).summaryTruncated
|
|
}
|
|
|
|
func (pco *pageContentOutput) RenderString(ctx context.Context, args ...any) (template.HTML, error) {
|
|
if len(args) < 1 || len(args) > 2 {
|
|
return "", errors.New("want 1 or 2 arguments")
|
|
}
|
|
|
|
var contentToRender string
|
|
opts := defaultRenderStringOpts
|
|
sidx := 1
|
|
|
|
if len(args) == 1 {
|
|
sidx = 0
|
|
} else {
|
|
m, ok := args[0].(map[string]any)
|
|
if !ok {
|
|
return "", errors.New("first argument must be a map")
|
|
}
|
|
|
|
if err := mapstructure.WeakDecode(m, &opts); err != nil {
|
|
return "", fmt.Errorf("failed to decode options: %w", err)
|
|
}
|
|
if opts.Markup != "" {
|
|
opts.Markup = markup.ResolveMarkup(opts.Markup)
|
|
}
|
|
}
|
|
|
|
contentToRenderv := args[sidx]
|
|
|
|
if _, ok := contentToRenderv.(hstring.RenderedString); ok {
|
|
// This content is already rendered, this is potentially
|
|
// a infinite recursion.
|
|
return "", errors.New("text is already rendered, repeating it may cause infinite recursion")
|
|
}
|
|
|
|
var err error
|
|
contentToRender, err = cast.ToStringE(contentToRenderv)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
if err = pco.initRenderHooks(); err != nil {
|
|
return "", err
|
|
}
|
|
|
|
conv := pco.po.p.getContentConverter()
|
|
|
|
if opts.Markup != "" && opts.Markup != pco.po.p.m.pageConfig.ContentMediaType.SubType {
|
|
var err error
|
|
conv, err = pco.po.p.m.newContentConverter(pco.po.p, opts.Markup)
|
|
if err != nil {
|
|
return "", pco.po.p.wrapError(err)
|
|
}
|
|
}
|
|
|
|
var rendered []byte
|
|
|
|
parseInfo := &contentParseInfo{
|
|
h: pco.po.p.s.h,
|
|
pid: pco.po.p.pid,
|
|
}
|
|
|
|
if pageparser.HasShortcode(contentToRender) {
|
|
contentToRenderb := []byte(contentToRender)
|
|
// String contains a shortcode.
|
|
parseInfo.itemsStep1, err = pageparser.ParseBytes(contentToRenderb, pageparser.Config{
|
|
NoFrontMatter: true,
|
|
NoSummaryDivider: true,
|
|
})
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
s := newShortcodeHandler(pco.po.p.pathOrTitle(), pco.po.p.s)
|
|
if err := parseInfo.mapItemsAfterFrontMatter(contentToRenderb, s); err != nil {
|
|
return "", err
|
|
}
|
|
|
|
placeholders, err := s.prepareShortcodesForPage(ctx, pco.po.p, pco.po.f, true)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
contentToRender, hasVariants, err := parseInfo.contentToRender(ctx, contentToRenderb, placeholders)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
if hasVariants {
|
|
pco.po.p.pageOutputTemplateVariationsState.Add(1)
|
|
}
|
|
b, err := pco.renderContentWithConverter(ctx, conv, contentToRender, false)
|
|
if err != nil {
|
|
return "", pco.po.p.wrapError(err)
|
|
}
|
|
rendered = b.Bytes()
|
|
|
|
if parseInfo.hasNonMarkdownShortcode {
|
|
var hasShortcodeVariants bool
|
|
|
|
tokenHandler := func(ctx context.Context, token string) ([]byte, error) {
|
|
if token == tocShortcodePlaceholder {
|
|
toc, err := pco.po.p.m.content.contentToC(ctx, pco)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
// The Page's TableOfContents was accessed in a shortcode.
|
|
return []byte(toc.tableOfContentsHTML), nil
|
|
}
|
|
renderer, found := placeholders[token]
|
|
if found {
|
|
repl, more, err := renderer.renderShortcode(ctx)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
hasShortcodeVariants = hasShortcodeVariants || more
|
|
return repl, nil
|
|
}
|
|
// This should not happen.
|
|
return nil, fmt.Errorf("unknown shortcode token %q", token)
|
|
}
|
|
|
|
rendered, err = expandShortcodeTokens(ctx, rendered, tokenHandler)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
if hasShortcodeVariants {
|
|
pco.po.p.pageOutputTemplateVariationsState.Add(1)
|
|
}
|
|
}
|
|
|
|
// We need a consolidated view in $page.HasShortcode
|
|
pco.po.p.m.content.shortcodeState.transferNames(s)
|
|
|
|
} else {
|
|
c, err := pco.renderContentWithConverter(ctx, conv, []byte(contentToRender), false)
|
|
if err != nil {
|
|
return "", pco.po.p.wrapError(err)
|
|
}
|
|
|
|
rendered = c.Bytes()
|
|
}
|
|
|
|
if opts.Display == "inline" {
|
|
markup := pco.po.p.m.pageConfig.Content.Markup
|
|
if opts.Markup != "" {
|
|
markup = pco.po.p.s.ContentSpec.ResolveMarkup(opts.Markup)
|
|
}
|
|
rendered = pco.po.p.s.ContentSpec.TrimShortHTML(rendered, markup)
|
|
}
|
|
|
|
return template.HTML(string(rendered)), nil
|
|
}
|
|
|
|
func (pco *pageContentOutput) Render(ctx context.Context, layout ...string) (template.HTML, error) {
|
|
if len(layout) == 0 {
|
|
return "", errors.New("no layout given")
|
|
}
|
|
templ, found, err := pco.po.p.resolveTemplate(layout...)
|
|
if err != nil {
|
|
return "", pco.po.p.wrapError(err)
|
|
}
|
|
|
|
if !found {
|
|
return "", nil
|
|
}
|
|
|
|
// Make sure to send the *pageState and not the *pageContentOutput to the template.
|
|
res, err := executeToString(ctx, pco.po.p.s.Tmpl(), templ, pco.po.p)
|
|
if err != nil {
|
|
return "", pco.po.p.wrapError(fmt.Errorf("failed to execute template %s: %w", templ.Name(), err))
|
|
}
|
|
return template.HTML(res), nil
|
|
}
|
|
|
|
func (pco *pageContentOutput) initRenderHooks() error {
|
|
if pco == nil {
|
|
return nil
|
|
}
|
|
|
|
pco.renderHooks.init.Do(func() {
|
|
if pco.po.p.pageOutputTemplateVariationsState.Load() == 0 {
|
|
pco.po.p.pageOutputTemplateVariationsState.Store(1)
|
|
}
|
|
|
|
type cacheKey struct {
|
|
tp hooks.RendererType
|
|
id any
|
|
f output.Format
|
|
}
|
|
|
|
renderCache := make(map[cacheKey]any)
|
|
var renderCacheMu sync.Mutex
|
|
|
|
resolvePosition := func(ctx any) text.Position {
|
|
source := pco.po.p.m.content.mustSource()
|
|
var offset int
|
|
|
|
switch v := ctx.(type) {
|
|
case hooks.CodeblockContext:
|
|
offset = bytes.Index(source, []byte(v.Inner()))
|
|
}
|
|
|
|
pos := pco.po.p.posFromInput(source, offset)
|
|
|
|
if pos.LineNumber > 0 {
|
|
// Move up to the code fence delimiter.
|
|
// This is in line with how we report on shortcodes.
|
|
pos.LineNumber = pos.LineNumber - 1
|
|
}
|
|
|
|
return pos
|
|
}
|
|
|
|
pco.renderHooks.getRenderer = func(tp hooks.RendererType, id any) any {
|
|
renderCacheMu.Lock()
|
|
defer renderCacheMu.Unlock()
|
|
|
|
key := cacheKey{tp: tp, id: id, f: pco.po.f}
|
|
if r, ok := renderCache[key]; ok {
|
|
return r
|
|
}
|
|
|
|
layoutDescriptor := pco.po.p.getLayoutDescriptor()
|
|
layoutDescriptor.RenderingHook = true
|
|
layoutDescriptor.LayoutOverride = false
|
|
layoutDescriptor.Layout = ""
|
|
|
|
switch tp {
|
|
case hooks.LinkRendererType:
|
|
layoutDescriptor.Kind = "render-link"
|
|
case hooks.ImageRendererType:
|
|
layoutDescriptor.Kind = "render-image"
|
|
case hooks.HeadingRendererType:
|
|
layoutDescriptor.Kind = "render-heading"
|
|
case hooks.CodeBlockRendererType:
|
|
layoutDescriptor.Kind = "render-codeblock"
|
|
if id != nil {
|
|
lang := id.(string)
|
|
lexer := chromalexers.Get(lang)
|
|
if lexer != nil {
|
|
layoutDescriptor.KindVariants = strings.Join(lexer.Config().Aliases, ",")
|
|
} else {
|
|
layoutDescriptor.KindVariants = lang
|
|
}
|
|
}
|
|
}
|
|
|
|
getHookTemplate := func(f output.Format) (tpl.Template, bool) {
|
|
templ, found, err := pco.po.p.s.Tmpl().LookupLayout(layoutDescriptor, f)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
if found {
|
|
if isitp, ok := templ.(tpl.IsInternalTemplateProvider); ok && isitp.IsInternalTemplate() {
|
|
renderHookConfig := pco.po.p.s.conf.Markup.Goldmark.RenderHooks
|
|
switch templ.Name() {
|
|
case "_default/_markup/render-link.html":
|
|
if !renderHookConfig.Link.IsEnableDefault() {
|
|
return nil, false
|
|
}
|
|
case "_default/_markup/render-image.html":
|
|
if !renderHookConfig.Image.IsEnableDefault() {
|
|
return nil, false
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return templ, found
|
|
}
|
|
|
|
templ, found1 := getHookTemplate(pco.po.f)
|
|
|
|
if pco.po.p.reusePageOutputContent() {
|
|
// Check if some of the other output formats would give a different template.
|
|
for _, f := range pco.po.p.s.renderFormats {
|
|
if f.Name == pco.po.f.Name {
|
|
continue
|
|
}
|
|
templ2, found2 := getHookTemplate(f)
|
|
if found2 {
|
|
if !found1 {
|
|
templ = templ2
|
|
found1 = true
|
|
break
|
|
}
|
|
|
|
if templ != templ2 {
|
|
pco.po.p.pageOutputTemplateVariationsState.Add(1)
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if !found1 {
|
|
if tp == hooks.CodeBlockRendererType {
|
|
// No user provided template for code blocks, so we use the native Go version -- which is also faster.
|
|
r := pco.po.p.s.ContentSpec.Converters.GetHighlighter()
|
|
renderCache[key] = r
|
|
return r
|
|
}
|
|
return nil
|
|
}
|
|
|
|
r := hookRendererTemplate{
|
|
templateHandler: pco.po.p.s.Tmpl(),
|
|
templ: templ,
|
|
resolvePosition: resolvePosition,
|
|
}
|
|
renderCache[key] = r
|
|
return r
|
|
}
|
|
})
|
|
|
|
return nil
|
|
}
|
|
|
|
func (pco *pageContentOutput) getContentConverter() (converter.Converter, error) {
|
|
if err := pco.initRenderHooks(); err != nil {
|
|
return nil, err
|
|
}
|
|
return pco.po.p.getContentConverter(), nil
|
|
}
|
|
|
|
func (cp *pageContentOutput) ParseAndRenderContent(ctx context.Context, content []byte, renderTOC bool) (converter.ResultRender, error) {
|
|
c, err := cp.getContentConverter()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return cp.renderContentWithConverter(ctx, c, content, renderTOC)
|
|
}
|
|
|
|
func (pco *pageContentOutput) ParseContent(ctx context.Context, content []byte) (converter.ResultParse, bool, error) {
|
|
c, err := pco.getContentConverter()
|
|
if err != nil {
|
|
return nil, false, err
|
|
}
|
|
p, ok := c.(converter.ParseRenderer)
|
|
if !ok {
|
|
return nil, ok, nil
|
|
}
|
|
rctx := converter.RenderContext{
|
|
Ctx: ctx,
|
|
Src: content,
|
|
RenderTOC: true,
|
|
GetRenderer: pco.renderHooks.getRenderer,
|
|
}
|
|
r, err := p.Parse(rctx)
|
|
return r, ok, err
|
|
}
|
|
|
|
func (pco *pageContentOutput) RenderContent(ctx context.Context, content []byte, doc any) (converter.ResultRender, bool, error) {
|
|
c, err := pco.getContentConverter()
|
|
if err != nil {
|
|
return nil, false, err
|
|
}
|
|
p, ok := c.(converter.ParseRenderer)
|
|
if !ok {
|
|
return nil, ok, nil
|
|
}
|
|
rctx := converter.RenderContext{
|
|
Ctx: ctx,
|
|
Src: content,
|
|
RenderTOC: true,
|
|
GetRenderer: pco.renderHooks.getRenderer,
|
|
}
|
|
r, err := p.Render(rctx, doc)
|
|
return r, ok, err
|
|
}
|
|
|
|
func (pco *pageContentOutput) renderContentWithConverter(ctx context.Context, c converter.Converter, content []byte, renderTOC bool) (converter.ResultRender, error) {
|
|
r, err := c.Convert(
|
|
converter.RenderContext{
|
|
Ctx: ctx,
|
|
Src: content,
|
|
RenderTOC: renderTOC,
|
|
GetRenderer: pco.renderHooks.getRenderer,
|
|
})
|
|
return r, err
|
|
}
|
|
|
|
// these will be shifted out when rendering a given output format.
|
|
type pagePerOutputProviders interface {
|
|
targetPather
|
|
page.PaginatorProvider
|
|
resource.ResourceLinksProvider
|
|
}
|
|
|
|
type targetPather interface {
|
|
targetPaths() page.TargetPaths
|
|
}
|
|
|
|
type targetPathsHolder struct {
|
|
paths page.TargetPaths
|
|
page.OutputFormat
|
|
}
|
|
|
|
func (t targetPathsHolder) targetPaths() page.TargetPaths {
|
|
return t.paths
|
|
}
|
|
|
|
func executeToString(ctx context.Context, h tpl.TemplateHandler, templ tpl.Template, data any) (string, error) {
|
|
b := bp.GetBuffer()
|
|
defer bp.PutBuffer(b)
|
|
if err := h.ExecuteWithContext(ctx, templ, b, data); err != nil {
|
|
return "", err
|
|
}
|
|
return b.String(), nil
|
|
}
|
|
|
|
func splitUserDefinedSummaryAndContent(markup string, c []byte) (summary []byte, content []byte, err error) {
|
|
defer func() {
|
|
if r := recover(); r != nil {
|
|
err = fmt.Errorf("summary split failed: %s", r)
|
|
}
|
|
}()
|
|
|
|
startDivider := bytes.Index(c, internalSummaryDividerBaseBytes)
|
|
|
|
if startDivider == -1 {
|
|
return
|
|
}
|
|
|
|
startTag := "p"
|
|
switch markup {
|
|
case media.DefaultContentTypes.AsciiDoc.SubType:
|
|
startTag = "div"
|
|
}
|
|
|
|
// Walk back and forward to the surrounding tags.
|
|
start := bytes.LastIndex(c[:startDivider], []byte("<"+startTag))
|
|
end := bytes.Index(c[startDivider:], []byte("</"+startTag))
|
|
|
|
if start == -1 {
|
|
start = startDivider
|
|
} else {
|
|
start = startDivider - (startDivider - start)
|
|
}
|
|
|
|
if end == -1 {
|
|
end = startDivider + len(internalSummaryDividerBase)
|
|
} else {
|
|
end = startDivider + end + len(startTag) + 3
|
|
}
|
|
|
|
var addDiv bool
|
|
|
|
switch markup {
|
|
case "rst":
|
|
addDiv = true
|
|
}
|
|
|
|
withoutDivider := append(c[:start], bytes.Trim(c[end:], "\n")...)
|
|
|
|
if len(withoutDivider) > 0 {
|
|
summary = bytes.TrimSpace(withoutDivider[:start])
|
|
}
|
|
|
|
if addDiv {
|
|
// For the rst
|
|
summary = append(append([]byte(nil), summary...), []byte("</div>")...)
|
|
}
|
|
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
content = bytes.TrimSpace(withoutDivider)
|
|
|
|
return
|
|
}
|