hastyscribe.nim
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 |
import os, parseopt2, strutils, times, pegs, base64, markdown, tables from version import v let usage* = " HastyScribe v" & v & " - Self-contained Markdown Compiler" & """ (c) 2013-2014 Fabio Cevasco Usage: hastyscribe markdown_file_or_glob.md [options] Arguments: markdown_file_or_glob The markdown (or glob expression) file to compile into HTML. Options: --notoc Do not generate a Table of Contents. --output-file=<file> Write output to <file>. (Use "--output-file=-" to output to stdout.)""" var generate_toc* = true var output_file*: string = nil const stylesheet* = "assets/styles/hastyscribe.css".slurp const hastyscribe_font* = "assets/fonts/hastyscribe.woff".slurp const fontawesome_font* = "assets/fonts/fontawesome-webfont.woff".slurp const sourcecodepro_font* = "assets/fonts/SourceCodePro-Regular.ttf.woff".slurp const sourcesanspro_font* = "assets/fonts/SourceSansPro-Regular.ttf.woff".slurp const sourcesanspro_bold_font* = "assets/fonts/SourceSansPro-Bold.ttf.woff".slurp const sourcesanspro_it_font* = "assets/fonts/SourceSansPro-It.ttf.woff".slurp const sourcesanspro_boldit_font* = "assets/fonts/SourceSansPro-BoldIt.ttf.woff".slurp # Procedures proc parse_date*(date: string, timeinfo: var TimeInfo): bool = var parts = date.split('-').map(proc(i:string): int = try: i.parseInt except: 0 ) if parts.len < 3: return false try: timeinfo = TimeInfo(year: parts[0], month: Month(parts[1]-1), monthday: parts[2]) # Fix invalid dates (e.g. Feb 31st -> Mar 3rd) timeinfo = getLocalTime(timeinfo.timeInfoToTime); return true except: return false proc style_tag*(css): string = result = "<style>$1</style>" % [css] proc encode_image*(contents, format): string = let enc_contents = contents.encode(contents.len*3) return "data:image/$format;base64,$enc_contents" % ["format", format, "enc_contents", enc_contents] proc encode_image_file*(file, format): string = if (file.existsFile): let contents = file.readFile return encode_image(contents, format) else: stderr.writeln("Warning: image '"& file &"' not found.") return file proc encode_font*(font, format): string = let enc_contents = font.encode(font.len*3) return "data:application/$format;charset=utf-8;base64,$enc_contents" % ["format", format, "enc_contents", enc_contents] proc embed_images*(document, dir): string = var current_dir:string if dir.len == 0: current_dir = "" else: current_dir = dir & "/" type TImgTagStart = array[0..0, string] let img_peg = peg""" image <- '<img' \s+ 'src=' ["] {file} ["] file <- [^"]+ """ var doc = document for img in findAll(document, img_peg): var matches:TImgTagStart discard img.match(img_peg, matches) let imgfile = matches[0] if imgfile.startsWith(peg"'data:'"): continue let pegimgformat = peg"i'.png' / i'.jpg' / i'.jpeg' / i'.gif' / i'.svg' / i'.bmp' / i'.webp' @$" let imgformat = imgfile.substr(imgfile.find(pegimgformat)+1, imgfile.len-1) let imgcontent = encode_image_file(current_dir & imgfile, imgformat) let imgrep = img.replace("\"" & img_file & "\"", "\"" & imgcontent & "\"") doc = doc.replace(img, imgrep) return doc proc add_jump_to_top_links*(document): string = return document.replacef(peg"{'</h' [23456] '>'}", "<a href=\"#document-top\" title=\"Go to top\"></a>$1") proc create_font_face*(font, family, style, weight): string= return """ @font-face { font-family:"$family"; src:url($font) format('woff'); font-style:$style; font-weight:$weight; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; } """ % ["family", family, "font", encode_font(font, "x-font-woff"), "style", style, "weight", $weight] var fonts* = [ create_font_face(hastyscribe_font, "HastyScribe", "normal", 400), create_font_face(fontawesome_font, "FontAwesome", "normal", 400), create_font_face(sourcecodepro_font, "Source Code Pro", "normal", 400), create_font_face(sourcesanspro_font, "Source Sans Pro", "normal", 400), create_font_face(sourcesanspro_bold_font, "Source Sans Pro", "normal", 800), create_font_face(sourcesanspro_it_font, "Source Sans Pro", "italic", 400), create_font_face(sourcesanspro_boldit_font, "Source Sans Pro", "italic", 800) ] proc embed_fonts*(): string= return style_tag(fonts.join); # Snippet Definition: # {{test -> My test snippet}} # # Snippet Usage: # {{test}} proc parse_snippets*(document): string = var snippets:Table[string, string] = initTable[string, string]() let peg_def = peg""" definition <- '{{' \s* {id} \s* '->' {@} '}}' id <- [a-zA-Z0-9_-]+ """ let peg_snippet = peg""" snippet <- '{{' \s* {id} \s* '}}' id <- [a-zA-Z0-9_-]+ """ type TSnippetDef = array[0..1, string] TSnippet = array[0..0, string] var doc = document for def in findAll(document, peg_def): var matches:TSnippetDef discard def.match(peg_def, matches) var id = matches[0].strip var value = matches[1].strip(true, false) snippets[id] = value doc = doc.replace(def, value) for snippet in findAll(document, peg_snippet): var matches:TSnippet discard snippet.match(peg_snippet, matches) var id = matches[0].strip if snippets[id] == nil: stderr.writeln "Warning: Snippet '" & id & "' not defined." doc = doc.replace(snippet, "") else: doc = doc.replace(snippet, snippets[id]) return doc proc compile*(input_file: string) = let inputsplit = input_file.splitFile # Output file name if output_file == nil: output_file = inputsplit.dir/inputsplit.name & ".htm" var source = input_file.readFile # Parse snippets source = parse_snippets(source) # Document Variables var metadata = TMDMetaData(title:"", author:"", date:"") var body = source.md(MKD_DOTOC or MKD_EXTRA_FOOTNOTE, metadata) var main_css = stylesheet.style_tag var headings = " class=\"headings\"" var author_footer = "" # Manage metadata if metadata.author != "": author_footer = "<span class=\"copy\"></span> " & metadata.author & " –" 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 generate_toc == true and metadata.toc != "": toc = "<div id=\"toc\">" & metadata.toc & "</div>" else: headings = "" toc = "" # Date parsing and validation var timeinfo: TimeInfo = getLocalTime(getTime()) if parse_date(metadata.date, timeinfo) == false: discard parse_date(getDateStr(), timeinfo) var 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"> <meta name="generator" content="HastyScribe"> $fonts_css $main_css </head> <body$headings> <a id="document-top"></a> $header_tag $toc <div id="main"> $body </div> <div id="footer"> <p>$author_footer $date</p> <p><span>Powered by</span> <a href="https://h3rald.com/hastyscribe"><span class="hastyscribe"></span></a></p> </div> </body>""" % ["title_tag", title_tag, "header_tag", header_tag, "author", metadata.author, "author_footer", author_footer, "date", timeinfo.format("MMMM d, yyyy"), "toc", toc, "main_css", main_css, "headings", headings, "body", body, "fonts_css", embed_fonts()] document = embed_images(document, inputsplit.dir) document = add_jump_to_top_links(document) if output_file != "-": output_file.writeFile(document) else: stdout.write(document) ### MAIN when isMainModule: var input = "" var files = @[""] discard files.pop # Parse Parameters for kind, key, val in getopt(): case kind of cmdArgument: input = key of cmdLongOption: if key == "notoc": generate_toc = false elif key == "output-file": output_file = val else: discard if input == "": quit(usage, 1) elif output_file == "": quit(usage, 4) for file in walkFiles(input): files.add(file) if files.len == 0: quit("Error: \"$1\" does not match any file" % [input], 2) else: try: for file in files: compile(file) except IOError: let msg = getCurrentExceptionMsg() quit("Error: $1" % [msg], 3) |