diff options
Diffstat (limited to 'vendor/github.com/russross/blackfriday/latex.go')
-rw-r--r-- | vendor/github.com/russross/blackfriday/latex.go | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/vendor/github.com/russross/blackfriday/latex.go b/vendor/github.com/russross/blackfriday/latex.go deleted file mode 100644 index 70705aa9..00000000 --- a/vendor/github.com/russross/blackfriday/latex.go +++ /dev/null @@ -1,332 +0,0 @@ -// -// Blackfriday Markdown Processor -// Available at http://github.com/russross/blackfriday -// -// Copyright © 2011 Russ Ross <russ@russross.com>. -// Distributed under the Simplified BSD License. -// See README.md for details. -// - -// -// -// LaTeX rendering backend -// -// - -package blackfriday - -import ( - "bytes" -) - -// Latex is a type that implements the Renderer interface for LaTeX output. -// -// Do not create this directly, instead use the LatexRenderer function. -type Latex struct { -} - -// LatexRenderer creates and configures a Latex object, which -// satisfies the Renderer interface. -// -// flags is a set of LATEX_* options ORed together (currently no such options -// are defined). -func LatexRenderer(flags int) Renderer { - return &Latex{} -} - -func (options *Latex) GetFlags() int { - return 0 -} - -// render code chunks using verbatim, or listings if we have a language -func (options *Latex) BlockCode(out *bytes.Buffer, text []byte, lang string) { - if lang == "" { - out.WriteString("\n\\begin{verbatim}\n") - } else { - out.WriteString("\n\\begin{lstlisting}[language=") - out.WriteString(lang) - out.WriteString("]\n") - } - out.Write(text) - if lang == "" { - out.WriteString("\n\\end{verbatim}\n") - } else { - out.WriteString("\n\\end{lstlisting}\n") - } -} - -func (options *Latex) TitleBlock(out *bytes.Buffer, text []byte) { - -} - -func (options *Latex) BlockQuote(out *bytes.Buffer, text []byte) { - out.WriteString("\n\\begin{quotation}\n") - out.Write(text) - out.WriteString("\n\\end{quotation}\n") -} - -func (options *Latex) BlockHtml(out *bytes.Buffer, text []byte) { - // a pretty lame thing to do... - out.WriteString("\n\\begin{verbatim}\n") - out.Write(text) - out.WriteString("\n\\end{verbatim}\n") -} - -func (options *Latex) Header(out *bytes.Buffer, text func() bool, level int, id string) { - marker := out.Len() - - switch level { - case 1: - out.WriteString("\n\\section{") - case 2: - out.WriteString("\n\\subsection{") - case 3: - out.WriteString("\n\\subsubsection{") - case 4: - out.WriteString("\n\\paragraph{") - case 5: - out.WriteString("\n\\subparagraph{") - case 6: - out.WriteString("\n\\textbf{") - } - if !text() { - out.Truncate(marker) - return - } - out.WriteString("}\n") -} - -func (options *Latex) HRule(out *bytes.Buffer) { - out.WriteString("\n\\HRule\n") -} - -func (options *Latex) List(out *bytes.Buffer, text func() bool, flags int) { - marker := out.Len() - if flags&LIST_TYPE_ORDERED != 0 { - out.WriteString("\n\\begin{enumerate}\n") - } else { - out.WriteString("\n\\begin{itemize}\n") - } - if !text() { - out.Truncate(marker) - return - } - if flags&LIST_TYPE_ORDERED != 0 { - out.WriteString("\n\\end{enumerate}\n") - } else { - out.WriteString("\n\\end{itemize}\n") - } -} - -func (options *Latex) ListItem(out *bytes.Buffer, text []byte, flags int) { - out.WriteString("\n\\item ") - out.Write(text) -} - -func (options *Latex) Paragraph(out *bytes.Buffer, text func() bool) { - marker := out.Len() - out.WriteString("\n") - if !text() { - out.Truncate(marker) - return - } - out.WriteString("\n") -} - -func (options *Latex) Table(out *bytes.Buffer, header []byte, body []byte, columnData []int) { - out.WriteString("\n\\begin{tabular}{") - for _, elt := range columnData { - switch elt { - case TABLE_ALIGNMENT_LEFT: - out.WriteByte('l') - case TABLE_ALIGNMENT_RIGHT: - out.WriteByte('r') - default: - out.WriteByte('c') - } - } - out.WriteString("}\n") - out.Write(header) - out.WriteString(" \\\\\n\\hline\n") - out.Write(body) - out.WriteString("\n\\end{tabular}\n") -} - -func (options *Latex) TableRow(out *bytes.Buffer, text []byte) { - if out.Len() > 0 { - out.WriteString(" \\\\\n") - } - out.Write(text) -} - -func (options *Latex) TableHeaderCell(out *bytes.Buffer, text []byte, align int) { - if out.Len() > 0 { - out.WriteString(" & ") - } - out.Write(text) -} - -func (options *Latex) TableCell(out *bytes.Buffer, text []byte, align int) { - if out.Len() > 0 { - out.WriteString(" & ") - } - out.Write(text) -} - -// TODO: this -func (options *Latex) Footnotes(out *bytes.Buffer, text func() bool) { - -} - -func (options *Latex) FootnoteItem(out *bytes.Buffer, name, text []byte, flags int) { - -} - -func (options *Latex) AutoLink(out *bytes.Buffer, link []byte, kind int) { - out.WriteString("\\href{") - if kind == LINK_TYPE_EMAIL { - out.WriteString("mailto:") - } - out.Write(link) - out.WriteString("}{") - out.Write(link) - out.WriteString("}") -} - -func (options *Latex) CodeSpan(out *bytes.Buffer, text []byte) { - out.WriteString("\\texttt{") - escapeSpecialChars(out, text) - out.WriteString("}") -} - -func (options *Latex) DoubleEmphasis(out *bytes.Buffer, text []byte) { - out.WriteString("\\textbf{") - out.Write(text) - out.WriteString("}") -} - -func (options *Latex) Emphasis(out *bytes.Buffer, text []byte) { - out.WriteString("\\textit{") - out.Write(text) - out.WriteString("}") -} - -func (options *Latex) Image(out *bytes.Buffer, link []byte, title []byte, alt []byte) { - if bytes.HasPrefix(link, []byte("http://")) || bytes.HasPrefix(link, []byte("https://")) { - // treat it like a link - out.WriteString("\\href{") - out.Write(link) - out.WriteString("}{") - out.Write(alt) - out.WriteString("}") - } else { - out.WriteString("\\includegraphics{") - out.Write(link) - out.WriteString("}") - } -} - -func (options *Latex) LineBreak(out *bytes.Buffer) { - out.WriteString(" \\\\\n") -} - -func (options *Latex) Link(out *bytes.Buffer, link []byte, title []byte, content []byte) { - out.WriteString("\\href{") - out.Write(link) - out.WriteString("}{") - out.Write(content) - out.WriteString("}") -} - -func (options *Latex) RawHtmlTag(out *bytes.Buffer, tag []byte) { -} - -func (options *Latex) TripleEmphasis(out *bytes.Buffer, text []byte) { - out.WriteString("\\textbf{\\textit{") - out.Write(text) - out.WriteString("}}") -} - -func (options *Latex) StrikeThrough(out *bytes.Buffer, text []byte) { - out.WriteString("\\sout{") - out.Write(text) - out.WriteString("}") -} - -// TODO: this -func (options *Latex) FootnoteRef(out *bytes.Buffer, ref []byte, id int) { - -} - -func needsBackslash(c byte) bool { - for _, r := range []byte("_{}%$&\\~#") { - if c == r { - return true - } - } - return false -} - -func escapeSpecialChars(out *bytes.Buffer, text []byte) { - for i := 0; i < len(text); i++ { - // directly copy normal characters - org := i - - for i < len(text) && !needsBackslash(text[i]) { - i++ - } - if i > org { - out.Write(text[org:i]) - } - - // escape a character - if i >= len(text) { - break - } - out.WriteByte('\\') - out.WriteByte(text[i]) - } -} - -func (options *Latex) Entity(out *bytes.Buffer, entity []byte) { - // TODO: convert this into a unicode character or something - out.Write(entity) -} - -func (options *Latex) NormalText(out *bytes.Buffer, text []byte) { - escapeSpecialChars(out, text) -} - -// header and footer -func (options *Latex) DocumentHeader(out *bytes.Buffer) { - out.WriteString("\\documentclass{article}\n") - out.WriteString("\n") - out.WriteString("\\usepackage{graphicx}\n") - out.WriteString("\\usepackage{listings}\n") - out.WriteString("\\usepackage[margin=1in]{geometry}\n") - out.WriteString("\\usepackage[utf8]{inputenc}\n") - out.WriteString("\\usepackage{verbatim}\n") - out.WriteString("\\usepackage[normalem]{ulem}\n") - out.WriteString("\\usepackage{hyperref}\n") - out.WriteString("\n") - out.WriteString("\\hypersetup{colorlinks,%\n") - out.WriteString(" citecolor=black,%\n") - out.WriteString(" filecolor=black,%\n") - out.WriteString(" linkcolor=black,%\n") - out.WriteString(" urlcolor=black,%\n") - out.WriteString(" pdfstartview=FitH,%\n") - out.WriteString(" breaklinks=true,%\n") - out.WriteString(" pdfauthor={Blackfriday Markdown Processor v") - out.WriteString(VERSION) - out.WriteString("}}\n") - out.WriteString("\n") - out.WriteString("\\newcommand{\\HRule}{\\rule{\\linewidth}{0.5mm}}\n") - out.WriteString("\\addtolength{\\parskip}{0.5\\baselineskip}\n") - out.WriteString("\\parindent=0pt\n") - out.WriteString("\n") - out.WriteString("\\begin{document}\n") -} - -func (options *Latex) DocumentFooter(out *bytes.Buffer) { - out.WriteString("\n\\end{document}\n") -} |