├── LICENSE ├── README.md └── converttomarkdown.gapps /LICENSE: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. Definitions. 9 | 10 | "License" shall mean the terms and conditions for use, reproduction, 11 | and distribution as defined by Sections 1 through 9 of this document. 12 | 13 | "Licensor" shall mean the copyright owner or entity authorized by 14 | the copyright owner that is granting the License. 15 | 16 | "Legal Entity" shall mean the union of the acting entity and all 17 | other entities that control, are controlled by, or are under common 18 | control with that entity. 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The text should be enclosed in the appropriate 185 | comment syntax for the file format. We also recommend that a 186 | file or class name and description of purpose be included on the 187 | same "printed page" as the copyright notice for easier 188 | identification within third-party archives. 189 | 190 | Copyright [yyyy] [name of copyright owner] 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. 203 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | gdocs2md 2 | ======== 3 | 4 | A simple Google Apps script to convert a properly formatted Google Drive Document to the markdown (.md) format. 5 | 6 | ## Usage 7 | 8 | * Adding this script to your doc (once per doc): 9 | * Open your Google Drive document (http://drive.google.com) 10 | * Tools -> Script Manager > New 11 | * Select "Blank Project", then paste this code in and save. 12 | * Clear the myFunction() default empty function and paste the contents of [converttomarkdown.gapps](https://raw.github.com/mangini/gdocs2md/master/converttomarkdown.gapps) into the code editor 13 | * File -> Save 14 | 15 | * Running the script (run as many times as you want): 16 | - Tools > Script Manager 17 | - Select "ConvertToMarkdown" function. 18 | - Click Run button (First run will require you to authorize it. Authorize and run again) 19 | - Converted doc with images attached will be emailed to you. Subject will be "[MARKDOWN_MAKER]...". 20 | 21 | 22 | ## Interpreted formats 23 | * Text: 24 | * paragraphs are separated by two newlines 25 | * text styled as heading 1, 2, 3, etc is converted to Markdown heading: #, ##, ###, etc 26 | * text formatted with Courier New is backquoted: ``text`` 27 | * links are converted to MD format: `[anchortext](url)` 28 | * Lists: 29 | * Numbered lists are converted correctly, including nested lists 30 | * bullet lists are converted to "`*`" Markdown format appropriately, including nested lists 31 | * Images: 32 | * images are correctly extracted and sent as attachments 33 | * Blocks: 34 | * Table of contents is replaced by `[[TOC]]` 35 | * blocks of text delimited by "--- class whateverclassnameyouwant" and "---" are converted to `
` 36 | * Source code: 37 | * **UPDATED**: blocks of text delimited by "--- source code" or "--- src" and "---" are converted to `
`
38 |       * **NEW**: blocks of text delimited by "--- source pretty" or "--- srcp" and "---" are converted to `
`
39 |     * Tables:
40 |       * **NEW**: Simple `` processing
41 |   * "--- jsperf ``" is replaced by an iframe that shows an interactive chart of a JSPerf test. The `` is the last part of the URL of the Browserscope anchor in your JSPerf test. Something like `"agt1YS1wcm9maWxlcnINCxIEVGVzdBjlm_EQDA"` in the URL `http://www.browserscope.org/user/tests/table/agt1YS1wcm9maWxlcnINCxIEVGVzdBjlm_EQDA`
42 |  
43 | 
44 | 
45 | ## CONTRIBUTORS
46 | 
47 | * Renato Mangini - [G+](//google.com/+renatomangini) - [Github](//github.com/mangini)
48 | * Ed Bacher - [G+](//plus.google.com/106923847899206957842) - [Github](//github.com/evbacher)
49 | 
50 | ## LICENSE
51 | 
52 | Use this script at your will, on any document you want and for any purpose, commercial or not. 
53 | The MarkDown files generated by this script are not considered derivative work and 
54 | don't require any attribution to the owners of this script. 
55 | 
56 | If you want to modify and redistribute the script (not the converted documents - those are yours), 
57 | just keep a reference to this repo or to the license info below:
58 | 
59 | ```
60 | Copyright 2013 Google Inc. All Rights Reserved.
61 | 
62 | Licensed under the Apache License, Version 2.0 (the "License");
63 | you may not use this file except in compliance with the License.
64 | You may obtain a copy of the License at
65 | 
66 |     http://www.apache.org/licenses/LICENSE-2.0
67 | 
68 | Unless required by applicable law or agreed to in writing, software
69 | distributed under the License is distributed on an "AS IS" BASIS,
70 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
71 | See the License for the specific language governing permissions and
72 | limitations under the License.
73 | ```
74 | 


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/converttomarkdown.gapps:
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  1 | // Open handler to add Menu
  2 | function onOpen(e) {
  3 |   var ui = DocumentApp.getUi();
  4 |   
  5 |   ui.createMenu('Markdown')
  6 |     .addItem('Export', 'ConvertToMarkdown')
  7 |     .addToUi();
  8 | }
  9 | 
 10 | function onInstall(e) {
 11 |   onOpen(e);
 12 | }
 13 | 
 14 | function ConvertToMarkdown() {
 15 |   // Convert to markdwon
 16 |   var convertedDoc = markdown();
 17 |   var html = HtmlService.createHtmlOutput("
"+convertedDoc.text+"
")
 18 |     .setSandboxMode(HtmlService.SandboxMode.IFRAME)
 19 |     .setTitle('Markdown')
 20 |     .setWidth(300);
 21 |   
 22 |   DocumentApp.getUi()
 23 |     .showSidebar(html);
 24 | }
 25 | 
 26 | function processSection(section) {
 27 |   var state = {
 28 |     'inSource' : false, // Document read pointer is within a fenced code block
 29 |     'images' : [], // Image data found in document
 30 |     'imageCounter' : 0, // Image counter 
 31 |     'prevDoc' : [], // Pointer to the previous element on aparsing tree level
 32 |     'nextDoc' : [], // Pointer to the next element on a parsing tree level
 33 |     'size' : [], // Number of elements on a parsing tree level
 34 |     'listCounters' : [], // List counter
 35 |   };
 36 |   
 37 |   // Process element tree outgoing from the root element
 38 |   var textElements = processElement(section, state, 0);
 39 |   
 40 |   return {
 41 |     'textElements' : textElements,
 42 |     'state' : state,
 43 |   }; 
 44 | }
 45 | 
 46 | function markdown() {
 47 |   // Text elements
 48 |   var textElements = []; 
 49 |   
 50 |   // Process header
 51 |   var head = DocumentApp.getActiveDocument().getHeader(); 
 52 |   if(head != null) {
 53 |     // Do not include empty header sections
 54 |     var teHead = processSection(head); 
 55 |     if(teHead.textElements.length > 0) {
 56 |       textElements = textElements.concat(teHead.textElements); 
 57 |       textElements.push('\n\n'); 
 58 |       textElements.push('---'); 
 59 |       textElements.push('\n\n');
 60 |     }
 61 |   }
 62 |   
 63 |   // Process body
 64 |   var doc = DocumentApp.getActiveDocument().getBody();
 65 |   doc = processSection(doc); 
 66 |   textElements = textElements.concat(doc.textElements); 
 67 |   
 68 |   // Process footer
 69 |   var foot = DocumentApp.getActiveDocument().getFooter(); 
 70 |   Logger.log("foot: " + foot);
 71 |   if(foot != null) {
 72 |     var teFoot = processSection(foot); 
 73 |     // Do not include empty footer sections
 74 |     if(teFoot.textElements.length > 0) {
 75 |       textElements.push('\n\n'); 
 76 |       textElements.push('---'); 
 77 |       textElements.push('\n\n'); 
 78 |       textElements = textElements.concat(teFoot.textElements); 
 79 |     }
 80 |   }
 81 |   
 82 |   // Build final output string
 83 |   var text = textElements.join('');
 84 |   
 85 |   // Replace critical chars
 86 |   text = text.replace('\u201d', '"').replace('\u201c', '"');
 87 |   
 88 |   // Debug logging
 89 |   Logger.log("Result: " + text);
 90 |   Logger.log("Images: " + doc.state.imageCounter);
 91 |   
 92 |   // Build attachment and file lists
 93 |   var attachments = [];
 94 |   var files = [];
 95 |   for(var i in doc.state.images) {
 96 |     var image = doc.state.images[i];
 97 |     attachments.push( {
 98 |       "fileName": image.name,
 99 |       "mimeType": image.type,
100 |       "content": image.bytes
101 |     } );
102 |     
103 |     files.push( {
104 |       "name" : image.name,
105 |       "blob" : image.blob
106 |     });
107 |   }
108 |   
109 |   // Results
110 |   return {
111 |     'files' : files,
112 |     'attachments' : attachments,
113 |     'text' : text,
114 |   };
115 | }
116 | 
117 | 
118 | function escapeHTML(text) {
119 |   return text.replace(//g, '>');
120 | }
121 | 
122 | // Add repeat function to strings
123 | String.prototype.repeat = function( num ) {
124 |   return new Array( num + 1 ).join( this );
125 | }
126 | 
127 | function handleTable(element, state, depth) {
128 |   var textElements = [];
129 |   
130 |   textElements.push("\n");
131 |   
132 |   function buildTable(size) {
133 |     var stack = []
134 |     var maxSize = 0; 
135 |     
136 |     for(var ir=0; ir text.length) {
158 |           text += " ".repeat(size - text.length)
159 |         }
160 |         
161 |         stack.push("| " + text);
162 |       }
163 |       
164 |       stack.push(" |\n");
165 |     }
166 |     
167 |     stack.push("\n");
168 |     return {
169 |       maxSize : maxSize,
170 |       stack : stack,
171 |     };
172 |   }
173 |   
174 |   var table = buildTable(100); 
175 |   table = buildTable(Math.max(10, table.maxSize + 1)); 
176 |   textElements = textElements.concat(table.stack);
177 |   
178 |   textElements.push('\n');
179 |   return textElements;
180 | }
181 | 
182 | function formatMd(text, indexLeft, formatLeft, indexRight, formatRight) {
183 |   var leftPad = '' + formatLeft; 
184 |   if(indexLeft > 0) {
185 |     if(text[indexLeft - 1] != ' ')
186 |       leftPad = ' ' + formatLeft; 
187 |   }
188 |   
189 |   var rightPad = formatRight + '';
190 |   if(indexRight < text.length) {
191 |     if(text[indexRight] != ' ') {
192 |       rightPad = formatRight + ' ';
193 |     }
194 |   }
195 |   
196 |   var formatted = text.substring(0, indexLeft) + leftPad + text.substring(indexLeft, indexRight) + rightPad + text.substring(indexRight);
197 |   return formatted;
198 | }
199 | 
200 | 
201 | function handleText(doc, state) {
202 |   var formatted = doc.getText(); 
203 |   var lastIndex = formatted.length; 
204 |   var attrs = doc.getTextAttributeIndices();
205 |   
206 |   // Iterate backwards through all attributes
207 |   for(var i=attrs.length-1; i >= 0; i--) {
208 |     // Current position in text
209 |     var index = attrs[i];
210 |         
211 |     // Handle links
212 |     if(doc.getLinkUrl(index)) {
213 |       var url = doc.getLinkUrl(index);
214 |       if (i > 0 && attrs[i-1] == index - 1 && doc.getLinkUrl(attrs[i-1]) === url) {
215 |         i -= 1;
216 |         index = attrs[i];
217 |         url = txt.getLinkUrl(off);
218 |       }
219 |       formatted = formatted.substring(0, index) + '[' + formatted.substring(index, lastIndex) + '](' + url + ')' + formatted.substring(lastIndex);
220 |       
221 |       // Do not handle additional formattings for links
222 |       continue; 
223 |     } 
224 |     
225 |     // Handle font family
226 |     if(doc.getFontFamily(index)) {
227 |       var font = doc.getFontFamily(index); 
228 |       var sourceFont = font.COURIER_NEW; 
229 |       
230 |       if (!state.inSource && font === sourceFont) {
231 |         // Scan left until text without source font is found
232 |         while (i > 0 && doc.getFontFamily(attrs[i-1]) && doc.getFontFamily(attrs[i-1]) === sourceFont) {
233 |           i -= 1;
234 |           off = attrs[i];
235 |         }
236 |         
237 |         formatted = formatMd(formatted, index, '`', lastIndex, '`');
238 |         
239 |         // Do not handle additional formattings for code
240 |         continue; 
241 |       }
242 |     }
243 |     
244 |     // Handle bold and bold italic
245 |     if(doc.isBold(index)) {
246 |       var dleft, right;
247 |       dleft = dright = "**";
248 |       if (doc.isItalic(index)) 
249 |       {
250 |         // edbacher: changed this to handle bold italic properly.
251 |         dleft = "**_"; 
252 |         dright  = "_**";
253 |       }
254 |       
255 |       formatted = formatMd(formatted, index, dleft, lastIndex, dright); 
256 |     } 
257 |     // Handle italic
258 |     else if(doc.isItalic(index)) {
259 |       formatted = formatMd(formatted, index, '*', lastIndex, '*'); 
260 |     }
261 |     
262 |     // Keep track of last position in text
263 |     lastIndex = index; 
264 |   }
265 |   
266 |   var textElements = [formatted]; 
267 |   return textElements; 
268 | }
269 | 
270 | 
271 | 
272 | function handleListItem(item, state, depth) {
273 |   var textElements = [];
274 |   
275 |   // Prefix
276 |   var prefix = '';
277 |   
278 |   // Add nesting level
279 |   for (var i=0; i= 0)?doc.getChild(i-1) : child;
401 |     state.prevDoc[depth] = prevDoc; 
402 |     
403 |     textElements = textElements.concat(processElement(child, state, depth+1)); 
404 |   }
405 |   return textElements;
406 | }
407 | 
408 | 
409 | function processElement(element, state, depth) {
410 |   // Result
411 |   var textElements = [];
412 |     
413 |   switch(element.getType()) {
414 |     case DocumentApp.ElementType.DOCUMENT:
415 |       Logger.log("this is a document"); 
416 |       break; 
417 |       
418 |     case DocumentApp.ElementType.BODY_SECTION: 
419 |       textElements = textElements.concat(processChilds(element, state, depth));
420 |       break; 
421 |       
422 |     case DocumentApp.ElementType.PARAGRAPH:
423 |       // Determine header prefix
424 |       var prefix = ''; 
425 |       switch (element.getHeading()) {
426 |         // Add a # for each heading level. No break, so we accumulate the right number.
427 |         case DocumentApp.ParagraphHeading.HEADING6: prefix += '#';
428 |         case DocumentApp.ParagraphHeading.HEADING5: prefix += '#';
429 |         case DocumentApp.ParagraphHeading.HEADING4: prefix += '#';
430 |         case DocumentApp.ParagraphHeading.HEADING3: prefix += '#';
431 |         case DocumentApp.ParagraphHeading.HEADING2: prefix += '#';
432 |         case DocumentApp.ParagraphHeading.HEADING1: prefix += '#';
433 |       }
434 |       
435 |       // Add space
436 |       if(prefix.length > 0)
437 |         prefix += ' ';
438 |       
439 |       // Push prefix
440 |       textElements.push(prefix);
441 |       
442 |       // Process childs
443 |       textElements = textElements.concat(processChilds(element, state, depth));
444 |       
445 |       // Add paragraph break only if its not the last element on this layer
446 |       if(state.nextDoc[depth-1] == element)
447 |         break; 
448 |       
449 |       if(state.inSource)
450 |         textElements.push('\n');
451 |       else
452 |         textElements.push('\n\n');
453 |       
454 |       break; 
455 |       
456 |     case DocumentApp.ElementType.LIST_ITEM:
457 |       textElements = textElements.concat(handleListItem(element, state, depth)); 
458 |       textElements.push('\n');
459 |       
460 |       if(state.nextDoc[depth-1].getType() != element.getType()) {
461 |         textElements.push('\n');
462 |       }
463 |       
464 |       break;
465 |      
466 |     case DocumentApp.ElementType.HEADER_SECTION:
467 |       textElements = textElements.concat(processChilds(element, state, depth));
468 |       break; 
469 |       
470 |     case DocumentApp.ElementType.FOOTER_SECTION:
471 |       textElements = textElements.concat(processChilds(element, state, depth));
472 |       break;
473 |       
474 |     case DocumentApp.ElementType.FOOTNOTE:
475 |       textElements.push(' (NOTE: ');
476 |       textElements = textElements.concat(processChilds(element.getFootnoteContents(), state, depth));
477 |       textElements.push(')');
478 |       break; 
479 |       
480 |     case DocumentApp.ElementType.HORIZONTAL_RULE:
481 |       textElements.push('---\n');
482 |       break; 
483 |      
484 |     case DocumentApp.ElementType.INLINE_DRAWING:
485 |       // Cannot handle this type - there is no export function for rasterized or SVG images...
486 |       break; 
487 |       
488 |     case DocumentApp.ElementType.TABLE:
489 |       textElements = textElements.concat(handleTable(element, state, depth));
490 |       break;
491 |       
492 |     case DocumentApp.ElementType.TABLE_OF_CONTENTS:
493 |       textElements.push('[[TOC]]');
494 |       break;
495 |       
496 |     case DocumentApp.ElementType.TEXT:
497 |       var text = handleText(element, state);
498 |       
499 |       // Check for source code delimiter
500 |       if(/^```.+$/.test(text.join(''))) {
501 |         state.inSource = true; 
502 |       }
503 |       
504 |       if(text.join('') === '```') {
505 |         state.inSource = false; 
506 |       }
507 |       
508 |       textElements = textElements.concat(text);
509 |       break;
510 | 
511 |     case DocumentApp.ElementType.INLINE_IMAGE: 
512 |       textElements = textElements.concat(handleImage(element, state));
513 |       break; 
514 |       
515 |     case DocumentApp.ElementType.PAGE_BREAK:
516 |       // Ignore page breaks
517 |       break; 
518 |       
519 |     case DocumentApp.ElementType.EQUATION: 
520 |       var latexEquation = handleEquationFunction(element, state); 
521 | 
522 |       // If equation is the only one in a paragraph - center it 
523 |       var wrap = '$'
524 |       if(state.size[depth-1] == 1) {
525 |         wrap = '$$'
526 |       }
527 |       
528 |       latexEquation = wrap + latexEquation.trim() + wrap; 
529 |       textElements.push(latexEquation);
530 |       break; 
531 |     default:
532 |       throw("Unknown element type: " + element.getType());
533 |   }
534 |   
535 |   return textElements; 
536 | }
537 | 


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