~adnano/gmnitohtml

ef010926cf1ec2a11147c6577e1ba60c19d5e215 — Adnan Maolood 3 years ago
Initial commit
4 files changed, 113 insertions(+), 0 deletions(-)

A LICENSE
A go.mod
A go.sum
A main.go
A  => LICENSE +19 -0
@@ 1,19 @@
Copyright (c) 2021 Adnan Maolood

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

A  => go.mod +5 -0
@@ 1,5 @@
module git.sr.ht/~adnano/geminitohtml

go 1.15

require git.sr.ht/~adnano/go-gemini v0.2.0

A  => go.sum +9 -0
@@ 1,9 @@
git.sr.ht/~adnano/go-gemini v0.2.0 h1:24rGvovyXhUX8X51EJq8JeHMxxbO362KzCBtz6QNH7o=
git.sr.ht/~adnano/go-gemini v0.2.0/go.mod h1:hQ75Y0i5jSFL+FQ7AzWVAYr5LQsaFC7v3ZviNyj46dY=
golang.org/x/net v0.0.0-20210119194325-5f4716e94777 h1:003p0dJM77cxMSyCPFphvZf/Y5/NXf5fzg6ufd1/Oew=
golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

A  => main.go +80 -0
@@ 1,80 @@
// Command geminitohtml is a Gemini text to HTML converter.
package main

import (
	"fmt"
	"html"
	"io"
	"os"

	"git.sr.ht/~adnano/go-gemini"
)

func main() {
	hw := HTMLWriter{
		out: os.Stdout,
	}
	gemini.ParseLines(os.Stdin, hw.Handle)
	hw.Finish()
}

type HTMLWriter struct {
	out  io.Writer
	pre  bool
	list bool
}

func (h *HTMLWriter) Handle(line gemini.Line) {
	if _, ok := line.(gemini.LineListItem); ok {
		if !h.list {
			h.list = true
			fmt.Fprint(h.out, "<ul>\n")
		}
	} else if h.list {
		h.list = false
		fmt.Fprint(h.out, "</ul>\n")
	}
	switch line := line.(type) {
	case gemini.LineLink:
		url := html.EscapeString(line.URL)
		name := html.EscapeString(line.Name)
		if name == "" {
			name = url
		}
		fmt.Fprintf(h.out, "<p><a href='%s'>%s</a></p>\n", url, name)
	case gemini.LinePreformattingToggle:
		h.pre = !h.pre
		if h.pre {
			fmt.Fprint(h.out, "<pre>\n")
		} else {
			fmt.Fprint(h.out, "</pre>\n")
		}
	case gemini.LinePreformattedText:
		fmt.Fprintf(h.out, "%s\n", html.EscapeString(string(line)))
	case gemini.LineHeading1:
		fmt.Fprintf(h.out, "<h1>%s</h1>\n", html.EscapeString(string(line)))
	case gemini.LineHeading2:
		fmt.Fprintf(h.out, "<h2>%s</h2>\n", html.EscapeString(string(line)))
	case gemini.LineHeading3:
		fmt.Fprintf(h.out, "<h3>%s</h3>\n", html.EscapeString(string(line)))
	case gemini.LineListItem:
		fmt.Fprintf(h.out, "<li>%s</li>\n", html.EscapeString(string(line)))
	case gemini.LineQuote:
		fmt.Fprintf(h.out, "<blockquote>%s</blockquote>\n", html.EscapeString(string(line)))
	case gemini.LineText:
		if line == "" {
			fmt.Fprint(h.out, "<br>\n")
		} else {
			fmt.Fprintf(h.out, "<p>%s</p>\n", html.EscapeString(string(line)))
		}
	}
}

func (h *HTMLWriter) Finish() {
	if h.pre {
		fmt.Fprint(h.out, "</pre>\n")
	}
	if h.list {
		fmt.Fprint(h.out, "</ul>\n")
	}
}