add Cgit filtersHEADmaster

5 files changed, 401 insertions, 0 deletions

diff --git a/about-formatting.sh b/about-formatting.sh
new file mode 100644
index 0000000..d11b738
--- /dev/null
+++ b/about-formatting.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+cd "$(dirname $0)/html-converters/"
+
+case "$(printf '%s' "$1" | tr '[:upper:]' '[:lower:]')" in
+	*.markdown|*.mdown|*.md|*.mkd) exec /filters/markdown_filter.py; ;;
+	*.rst) exec ./rst2html; ;;
+	*.[1-9]) exec ./man2html; ;;
+	*.htm|*.html) exec cat; ;;
+	*.txt|*) exec ./txt2html; ;;
+esac
diff --git a/markdown_filter.py b/markdown_filter.py
new file mode 100644
index 0000000..ebeba3d
--- /dev/null
+++ b/markdown_filter.py
@@ -0,0 +1,319 @@
+#!/usr/bin/env python3
+import sys
+import io
+from textwrap import dedent
+
+from markdown import markdown
+from markdown.extensions.toc import TocExtension
+from pygments.formatters import HtmlFormatter
+
+from utils import configure_io, write_style
+
+
+markdown_style = dedent("""\
+    .markdown-body {
+        font-size: 14px;
+        line-height: 1.6;
+        overflow: hidden;
+    }
+    .markdown-body>*:first-child {
+        margin-top: 0 !important;
+    }
+    .markdown-body>*:last-child {
+        margin-bottom: 0 !important;
+    }
+    .markdown-body a.absent {
+        color: #c00;
+    }
+    .markdown-body a.anchor {
+        display: block;
+        padding-left: 30px;
+        margin-left: -30px;
+        cursor: pointer;
+        position: absolute;
+        top: 0;
+        left: 0;
+        bottom: 0;
+    }
+    .markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4, .markdown-body h5, .markdown-body h6 {
+        margin: 20px 0 10px;
+        padding: 0;
+        font-weight: bold;
+        -webkit-font-smoothing: antialiased;
+        cursor: text;
+        position: relative;
+    }
+    .markdown-body h1 .mini-icon-link, .markdown-body h2 .mini-icon-link, .markdown-body h3 .mini-icon-link, .markdown-body h4 .mini-icon-link, .markdown-body h5 .mini-icon-link, .markdown-body h6 .mini-icon-link {
+        display: none;
+    }
+    .markdown-body h1:hover a.anchor, .markdown-body h2:hover a.anchor, .markdown-body h3:hover a.anchor, .markdown-body h4:hover a.anchor, .markdown-body h5:hover a.anchor, .markdown-body h6:hover a.anchor {
+        text-decoration: none;
+        line-height: 1;
+        padding-left: 0;
+        margin-left: -22px;
+        top: 15%;
+    }
+    .markdown-body h1:hover a.anchor .mini-icon-link, .markdown-body h2:hover a.anchor .mini-icon-link, .markdown-body h3:hover a.anchor .mini-icon-link, .markdown-body h4:hover a.anchor .mini-icon-link, .markdown-body h5:hover a.anchor .mini-icon-link, .markdown-body h6:hover a.anchor .mini-icon-link {
+        display: inline-block;
+    }
+    .markdown-body h1 tt, .markdown-body h1 code, .markdown-body h2 tt, .markdown-body h2 code, .markdown-body h3 tt, .markdown-body h3 code, .markdown-body h4 tt, .markdown-body h4 code, .markdown-body h5 tt, .markdown-body h5 code, .markdown-body h6 tt, .markdown-body h6 code {
+        font-size: inherit;
+    }
+    .markdown-body h1 {
+        font-size: 28px;
+    }
+    .markdown-body h2 {
+        font-size: 24px;
+        border-bottom: 1px solid #ccc;
+    }
+    .markdown-body h3 {
+        font-size: 18px;
+    }
+    .markdown-body h4 {
+        font-size: 16px;
+    }
+    .markdown-body h5 {
+        font-size: 14px;
+    }
+    .markdown-body h6 {
+        color: #777;
+        font-size: 14px;
+    }
+    .markdown-body p, .markdown-body blockquote, .markdown-body ul, .markdown-body ol, .markdown-body dl, .markdown-body table, .markdown-body pre {
+        margin: 15px 0;
+    }
+    .markdown-body hr {
+        border: 2px solid #ccc;
+    }
+    .markdown-body>h2:first-child, .markdown-body>h1:first-child, .markdown-body>h1:first-child+h2, .markdown-body>h3:first-child, .markdown-body>h4:first-child, .markdown-body>h5:first-child, .markdown-body>h6:first-child {
+        margin-top: 0;
+        padding-top: 0;
+    }
+    .markdown-body a:first-child h1, .markdown-body a:first-child h2, .markdown-body a:first-child h3, .markdown-body a:first-child h4, .markdown-body a:first-child h5, .markdown-body a:first-child h6 {
+        margin-top: 0;
+        padding-top: 0;
+    }
+    .markdown-body h1+p, .markdown-body h2+p, .markdown-body h3+p, .markdown-body h4+p, .markdown-body h5+p, .markdown-body h6+p {
+        margin-top: 0;
+    }
+    .markdown-body li p.first {
+        display: inline-block;
+    }
+    .markdown-body ul, .markdown-body ol {
+        padding-left: 30px;
+    }
+    .markdown-body ul.no-list, .markdown-body ol.no-list {
+        list-style-type: none;
+        padding: 0;
+    }
+    .markdown-body ul li>:first-child, .markdown-body ul li ul:first-of-type, .markdown-body ul li ol:first-of-type, .markdown-body ol li>:first-child, .markdown-body ol li ul:first-of-type, .markdown-body ol li ol:first-of-type {
+        margin-top: 0px;
+    }
+    .markdown-body ul li p:last-of-type, .markdown-body ol li p:last-of-type {
+        margin-bottom: 0;
+    }
+    .markdown-body ul ul, .markdown-body ul ol, .markdown-body ol ol, .markdown-body ol ul {
+        margin-bottom: 0;
+    }
+    .markdown-body dl {
+        padding: 0;
+    }
+    .markdown-body dl dt {
+        font-size: 14px;
+        font-weight: bold;
+        font-style: italic;
+        padding: 0;
+        margin: 15px 0 5px;
+    }
+    .markdown-body dl dt:first-child {
+        padding: 0;
+    }
+    .markdown-body dl dt>:first-child {
+        margin-top: 0px;
+    }
+    .markdown-body dl dt>:last-child {
+        margin-bottom: 0px;
+    }
+    .markdown-body dl dd {
+        margin: 0 0 15px;
+        padding: 0 15px;
+    }
+    .markdown-body dl dd>:first-child {
+        margin-top: 0px;
+    }
+    .markdown-body dl dd>:last-child {
+        margin-bottom: 0px;
+    }
+    .markdown-body blockquote {
+        border-left: 4px solid #DDD;
+        padding: 0 15px;
+        color: #777;
+    }
+    .markdown-body blockquote>:first-child {
+        margin-top: 0px;
+    }
+    .markdown-body blockquote>:last-child {
+        margin-bottom: 0px;
+    }
+    .markdown-body table th {
+        font-weight: bold;
+    }
+    .markdown-body table th, .markdown-body table td {
+        border: 1px solid #ccc;
+        padding: 6px 13px;
+    }
+    .markdown-body table tr {
+        border-top: 1px solid #ccc;
+        background-color: #fff;
+    }
+    .markdown-body table tr:nth-child(2n) {
+        background-color: #f8f8f8;
+    }
+    .markdown-body img {
+        max-width: 100%;
+        -moz-box-sizing: border-box;
+        box-sizing: border-box;
+    }
+    .markdown-body span.frame {
+        display: block;
+        overflow: hidden;
+    }
+    .markdown-body span.frame>span {
+        border: 1px solid #ddd;
+        display: block;
+        float: left;
+        overflow: hidden;
+        margin: 13px 0 0;
+        padding: 7px;
+        width: auto;
+    }
+    .markdown-body span.frame span img {
+        display: block;
+        float: left;
+    }
+    .markdown-body span.frame span span {
+        clear: both;
+        color: #333;
+        display: block;
+        padding: 5px 0 0;
+    }
+    .markdown-body span.align-center {
+        display: block;
+        overflow: hidden;
+        clear: both;
+    }
+    .markdown-body span.align-center>span {
+        display: block;
+        overflow: hidden;
+        margin: 13px auto 0;
+        text-align: center;
+    }
+    .markdown-body span.align-center span img {
+        margin: 0 auto;
+        text-align: center;
+    }
+    .markdown-body span.align-right {
+        display: block;
+        overflow: hidden;
+        clear: both;
+    }
+    .markdown-body span.align-right>span {
+        display: block;
+        overflow: hidden;
+        margin: 13px 0 0;
+        text-align: right;
+    }
+    .markdown-body span.align-right span img {
+        margin: 0;
+        text-align: right;
+    }
+    .markdown-body span.float-left {
+        display: block;
+        margin-right: 13px;
+        overflow: hidden;
+        float: left;
+    }
+    .markdown-body span.float-left span {
+        margin: 13px 0 0;
+    }
+    .markdown-body span.float-right {
+        display: block;
+        margin-left: 13px;
+        overflow: hidden;
+        float: right;
+    }
+    .markdown-body span.float-right>span {
+        display: block;
+        overflow: hidden;
+        margin: 13px auto 0;
+        text-align: right;
+    }
+    .markdown-body code, .markdown-body tt {
+        margin: 0 2px;
+        padding: 0px 5px;
+        border: 1px solid #eaeaea;
+        background-color: #f8f8f8;
+        border-radius: 3px;
+    }
+    .markdown-body code {
+        white-space: nowrap;
+    }
+    .markdown-body pre>code {
+        margin: 0;
+        padding: 0;
+        white-space: pre;
+        border: none;
+        background: transparent;
+    }
+    .markdown-body .highlight pre, .markdown-body pre {
+        background-color: #111111;
+        border: 1px solid #ccc;
+        font-size: 13px;
+        line-height: 19px;
+        overflow: auto;
+        padding: 6px 10px;
+        border-radius: 3px;
+    }
+    .markdown-body pre code, .markdown-body pre tt {
+        margin: 0;
+        padding: 0;
+        background-color: transparent;
+        border: none;
+    }
+    table.blob {
+        display: none;
+    }
+""")
+
+
+def write_markdown_as_html(markdown_input: str):
+    sys.stdout.write("<div class='markdown-body'>")
+    sys.stdout.flush()
+
+    html = markdown(
+        text=markdown_input,
+		output_format="html5",
+		extensions=[
+				"markdown.extensions.fenced_code",
+				"markdown.extensions.codehilite",
+				"markdown.extensions.tables",
+				"markdown.extensions.sane_lists",
+				TocExtension(anchorlink=True)],
+		extension_configs={
+			"markdown.extensions.codehilite":{"css_class":"highlight"}
+		}
+	)
+
+    sys.stdout.write(html)
+
+    sys.stdout.write("</div>")
+
+
+if __name__ == "__main__":
+    configure_io()
+
+    formatter = HtmlFormatter(style="fruity", nobackground=True)
+
+    write_style(formatter, markdown_style)
+
+    write_markdown_as_html(sys.stdin.read())
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..8e445c7
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+Pygments==2.10.0
+markdown==3.3.6
\ No newline at end of file
diff --git a/syntax-highlighting.py b/syntax-highlighting.py
new file mode 100644
index 0000000..6c8edf1
--- /dev/null
+++ b/syntax-highlighting.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+import sys
+import io
+
+from pygments import highlight
+from pygments.util import ClassNotFound
+from pygments.lexers import TextLexer
+from pygments.lexers import guess_lexer
+from pygments.lexers import guess_lexer_for_filename
+from pygments.formatters import HtmlFormatter
+
+from utils import configure_io, write_style
+from markdown_filter import markdown_style, write_markdown_as_html
+
+def main():
+    configure_io()
+
+    data = sys.stdin.read()
+    filename = sys.argv[1]
+
+    formatter = HtmlFormatter(style="fruity", nobackground=True)
+
+    if filename.endswith(".md"):
+        # Dirty workaround to get markdown to display properly
+        sys.stdout.write("</code></pre></td></tr></tbody></table>")
+
+        write_style(formatter, markdown_style)
+
+        write_markdown_as_html(data)
+        sys.stdout.flush()
+        return
+
+    write_style(formatter)
+
+    try:
+        lexer = guess_lexer_for_filename(filename, data)
+    except ClassNotFound:
+        # check if there is any shebang
+        if data[0:2] == '#!':
+            lexer = guess_lexer(data)
+        else:
+            lexer = TextLexer()
+    except TypeError:
+            lexer = TextLexer()
+
+    sys.stdout.write(highlight(data, lexer, formatter, outfile=None))
+
+
+if __name__ == "__main__":
+    main()
diff --git a/utils.py b/utils.py
new file mode 100644
index 0000000..40a8f81
--- /dev/null
+++ b/utils.py
@@ -0,0 +1,20 @@
+import sys
+import io
+from typing import Optional
+
+from pygments.formatters import HtmlFormatter
+
+
+def configure_io():
+    sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8', errors='replace')
+    sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace')
+
+
+def write_style(formatter: HtmlFormatter, opt_style: Optional[str] = None):
+    sys.stdout.write('<style>')
+
+    if opt_style:
+        sys.stdout.write(opt_style)
+
+    sys.stdout.write(formatter.get_style_defs('.highlight'))
+    sys.stdout.write('</style>')