87 lines
2.2 KiB
Go
87 lines
2.2 KiB
Go
// Copyright (C) 2020 Marius Schellenberger
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package render
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import (
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"git.giftfish.de/ston1th/gowiki/pkg/core"
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"github.com/blevesearch/bleve/analysis"
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"github.com/blevesearch/bleve/analysis/char/html"
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"github.com/russross/blackfriday"
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"html/template"
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"regexp"
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"strings"
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)
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const delim = "+"
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var filter = makeFilter()
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func makeFilter() analysis.CharFilter {
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f, _ := html.CharFilterConstructor(nil, nil)
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return f
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}
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var (
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titleRe = regexp.MustCompile("[^a-zA-Z0-9 -]+")
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whiteSpace = regexp.MustCompile(`\s+`)
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)
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const (
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commonHtmlFlags = 0 |
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blackfriday.HTML_USE_XHTML |
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blackfriday.HTML_USE_SMARTYPANTS |
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blackfriday.HTML_SMARTYPANTS_FRACTIONS |
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blackfriday.HTML_SMARTYPANTS_DASHES |
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blackfriday.HTML_SMARTYPANTS_LATEX_DASHES |
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blackfriday.HTML_TOC |
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blackfriday.HTML_HREF_TARGET_BLANK |
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blackfriday.HTML_NOREFERRER_LINKS |
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blackfriday.HTML_NOFOLLOW_LINKS |
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blackfriday.HTML_NOOPENER_LINKS
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commonExtensions = 0 |
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blackfriday.EXTENSION_NO_INTRA_EMPHASIS |
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blackfriday.EXTENSION_TABLES |
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blackfriday.EXTENSION_FENCED_CODE |
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blackfriday.EXTENSION_AUTOLINK |
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blackfriday.EXTENSION_STRIKETHROUGH |
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blackfriday.EXTENSION_SPACE_HEADERS |
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blackfriday.EXTENSION_HEADER_IDS |
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blackfriday.EXTENSION_BACKSLASH_LINE_BREAK |
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blackfriday.EXTENSION_DEFINITION_LISTS |
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blackfriday.EXTENSION_AUTO_HEADER_IDS
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)
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func Render(p *core.Page) string {
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renderer := blackfriday.HtmlRenderer(commonHtmlFlags, "", "")
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rend := blackfriday.MarkdownOptions([]byte(p.Markdown), renderer,
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blackfriday.Options{Extensions: commonExtensions},
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)
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html := string(rend)
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html = strings.ReplaceAll(html, "<table>", `<table class="table">`)
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p.HTML = template.HTML(html)
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return whiteSpace.ReplaceAllString(string(filter.Filter(rend)), " ")
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}
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func Title(title string) string {
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return whiteSpace.ReplaceAllString(titleRe.ReplaceAllString(title, ""), delim)
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}
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func Untitle(title string) string {
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return strings.ReplaceAll(title, delim, " ")
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}
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func StoreTitle(section, title string) string {
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return section + "/" + title
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}
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func SplitStoreTitle(st string) (section, title string) {
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a := strings.Split(st, "/")
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switch len(a) {
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case 1:
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return a[0], ""
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case 2:
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return a[0], a[1]
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}
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return
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}
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