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mirror of https://github.com/osmarks/mycorrhiza.git synced 2024-12-12 05:20:26 +00:00

Gemini parser

This commit is contained in:
Dan Konshin 2020-07-05 19:56:03 +05:00
parent 05542ec17b
commit 0d9a677aca
4 changed files with 163 additions and 2 deletions

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@ -1,7 +1,73 @@
package parser
import ()
import (
"bytes"
"strings"
"github.com/bouncepaw/mycorrhiza/util"
)
const (
linkToken = "=>"
headerToken = "#"
quoteToken = ">"
preformattedToken = "```"
listItemToken = "*"
)
func GeminiToHtml(gemini []byte) string {
return ""
lines, _ := StringToLines(string(util.NormalizeEOL(gemini)))
var html []string
for _, line := range lines {
html = append(html, geminiLineToHtml(line))
}
buffer := bytes.Buffer{}
for _, line := range html {
buffer.WriteString(line)
}
return buffer.String()
}
func geminiLineToHtml(line string) (res string) {
arr := strings.Fields(line)
if len(arr) == 0 {
return lineBreak
}
content := arr[1:]
token := arr[0]
if string(token[0]) == headerToken {
return makeHeader(makeOutHeader(arr))
}
switch token {
case linkToken:
res = makeLink(makeOutLink(content))
case quoteToken:
res = makeBlockQuote(LinesToString(content, " "))
case preformattedToken:
res = makePreformatted(LinesToString(content, " "))
case listItemToken:
res = makeListItem(LinesToString(content, " "))
default:
res = makeParagraph(line)
}
return res
}
func makeOutLink(arr []string) (source, content string) {
switch len(arr) {
case 0:
return "", ""
case 1:
return arr[0], arr[0]
default:
return arr[0], LinesToString(arr[1:], " ")
}
}
func makeOutHeader(arr []string) (level int, content string) {
level = len(arr[0])
content = LinesToString(arr[1:], " ")
return
}

53
plugin/parser/toHtml.go Normal file
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@ -0,0 +1,53 @@
package parser
import (
"bufio"
"bytes"
"fmt"
"strings"
)
const (
lineBreak = "<br>"
)
func makeLink(source, content string) string {
return fmt.Sprintf(`<a href="%v">%v</a>`, source, content)
}
func makeParagraph(content string) string {
return `<p>` + content + `</p>`
}
func makeBlockQuote(content string) string {
return `<blockquote>` + content + `</blockquote>`
}
func makeHeader(level int, content string) string {
return fmt.Sprintf("<h%v>%v</h%v>", level, content, level)
}
func makePreformatted(content string) string {
return "<pre>" + content + "</pre>"
}
func makeListItem(content string) string {
return "<li>" + content + "</li>"
}
func StringToLines(s string) (lines []string, err error) {
scanner := bufio.NewScanner(strings.NewReader(s))
for scanner.Scan() {
lines = append(lines, scanner.Text())
}
err = scanner.Err()
return
}
func LinesToString(lines []string, separator string) string {
buffer := bytes.Buffer{}
for _, line := range lines {
buffer.WriteString(line + separator)
}
return buffer.String()
}

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@ -0,0 +1,25 @@
# Gemtext cheatsheet
Here's the basics of how text works in Gemtext:
Long lines get wrapped by the client to fit the screen
Short lines *don't* get joined together
Write paragraphs as single long lines
Blank lines are rendered verbatim
You get three levels of heading:
# Heading
## Sub-heading
### Sub-subheading
You get one kind of list and you can't nest them:
* Mercury
* Gemini
* Apollo
Here's a quote from Maciej Cegłowski:
> I contend that text-based websites should not exceed in size the major works of Russian literature.
Lines which start with ``` will cause clients to toggle in and out of ordinary rendering mode and preformatted mode. In preformatted mode, Gemtext syntax is ignored so links etc. will not be rendered, and text will appear in a monospace font.
``` =>https://not-a-href.com preformatted
=> https://proxy.vulpes.one/gemini/gemini.circumlunar.space/docs/cheatsheet.gmi Original cheatsheet
=> https://proxy.vulpes.one/gemini/gemini.circumlunar.space/docs/cheatsheet.gmi

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@ -0,0 +1,17 @@
{
"views": 0,
"deleted": false,
"revisions": {
"1": {
"tags": null,
"name": "Testgemini",
"comment": "Create :Main/Testgemini",
"author": "",
"time": 1593960824,
"text_mime": "text/gemini",
"binary_mime": "",
"text_name": "1.txt",
"binary_name": ""
}
}
}