all repos — hastyscribe @ 07bae0dedb41edce15b48083f8e4a9eb80d5d913

A professional markdown compiler.

hastyscribe.nim

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import os, parseopt, strutils, times, base64, markdown

# Source
const src_css = "assets/hastyscribe.css".slurp

proc style_tag(css): string =
  result = "<style>$1</style>" % [css]

let css = src_css.style_tag

### MAIN

var opt = initOptParser()

opt.next

if opt.kind != cmdArgument:
  quit()

# Input file name
let input_file = opt.key
let inputsplit = input_file.splitFile

# Output file name
let output_file = inputsplit.dir/inputsplit.name & ".htm"

let source = input_file.readFile

proc encode_image(file, format): string =
  let contents = file.readFile
  let enc_contents = contents.encode(contents.len*3) 
  return "data:image/$format;base64,$enc_contents" % ["format", format, "enc_contents", enc_contents]

# URL callback
proc callback(url: cstring, size: cint, p: pointer): cstring =
  let str_url = $url
  var target = str_url[0..size-1]
  let file = inputsplit.dir/target
  if file.existsFile:
    let filesplit = target.splitFile
    case filesplit.ext
    of ".png":
      target = encode_image(file, "png")
    of ".jpg":
      target = encode_image(file, "jpeg")
    of ".gif":
      target = encode_image(file, "gif")
    else: nil
  return target

# Document Variables
var metadata = TMDMetaData(title:"", author:"", date:"")
let body = source.md(MKD_DOTOC or MKD_EXTRA_FOOTNOTE, metadata, callback)


# Manage metadata

if metadata.author != "":
  metadata.author = "by <em>" & metadata.author & "</em> &ndash;"


var title_tag, header_tag, toc: string

if metadata.title != "":
  title_tag = "<title>" & metadata.title & "</title>"
  header_tag = "<div id=\"header\"><h1>" & metadata.title & "</h1></div>"
else:
  title_tag = ""
  header_tag = ""

if metadata.toc != "":
  toc = "<div id=\"toc\">" & metadata.toc & "</div>"
else:
  toc = ""

var timeinfo: TTimeInfo

proc parse_date(date: string, timeinfo: var TTimeInfo): bool = 
  var parts = metadata.date.split('-').map(proc(i:string): int = i.parseInt)
  try:
    timeinfo = TTimeInfo(year: parts[0], month: TMonth(parts[1]-1), monthday: parts[2])
    # Fix invalid dates (e.g. Feb 31st -> Mar 3rd)
    timeinfo = getLocalTime(timeinfo.TimeInfoToTime);
    return true
  except:
    return false

if metadata.date == "":
  discard parse_date(getDateStr(), timeinfo)
else:
  if parse_date(metadata.date, timeinfo) == false:
    discard parse_date(getDateStr(), timeinfo)

let document = """<!doctype html>
<html lang="en">
<head>
  $title_tag
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="author" content="$author">
  $css
</head> 
<body>
  $header_tag
  <div id="toc">
    $toc
  </div>
  <div id="main">
$body
  </div>
  <div id="footer">
    <p>$author Generated with <a href="https://github.com/h3rald/hastyscribe/">HastyScribe</a> on <em>$date</em></p>
  </div>
</body>""" % ["title_tag", title_tag, "header_tag", header_tag, "author", metadata.author, "date", timeinfo.format("MMMM d, yyyy"), "toc", toc, "css", css, "body", body]

output_file.writeFile(document)