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412 lines (356 loc) · 12.6 KB
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// word2md - Word to Markdown conversion tool
//
// word2md converts a Microsoft Word document to Markdown formatted text. The tool uses the
// Word Automation APIs to start an instance of Word and access the contents of the document
// being converted. The tool must be run using the cscript.exe script host and requires Word
// to be installed on the target machine. The name of the document to convert must be specified
// as a command line argument and the resulting Markdown is written to standard output. The
// tool recognizes the specific Word styles used in the TypeScript Language Specification.
module Word {
export interface Collection<T> {
count: number;
item(index: number): T;
}
export interface Font {
bold: boolean;
italic: boolean;
subscript: boolean;
superscript: boolean;
}
export interface Find {
font: Font;
format: boolean;
replacement: Replacement;
style: any;
text: string;
clearFormatting(): void;
execute(
findText: string,
matchCase: boolean,
matchWholeWord: boolean,
matchWildcards: boolean,
matchSoundsLike: boolean,
matchAllWordForms: boolean,
forward: boolean,
wrap: number,
format: boolean,
replaceWith: string,
replace: number): boolean;
}
export interface Replacement {
font: Font;
style: any;
text: string;
clearFormatting(): void;
}
export interface ListFormat {
listLevelNumber: number;
listString: string;
}
export interface Column {
}
export interface Columns extends Collection<Column> {
}
export interface Table {
columns: Columns;
}
export interface Tables extends Collection<Table> {
}
export interface Range {
find: Find;
listFormat: ListFormat;
tables: Tables;
text: string;
textRetrievalMode: {
includeHiddenText: boolean;
}
words: Ranges;
}
export interface Ranges extends Collection<Range> {
}
export interface Style {
nameLocal: string;
}
export interface Paragraph {
alignment: number;
range: Range;
style: Style;
next(): Paragraph;
}
export interface Paragraphs extends Collection<Paragraph> {
first: Paragraph;
}
export interface Field {
}
export interface Fields extends Collection<Field> {
toggleShowCodes(): void;
}
export interface Hyperlink {
address: string;
textToDisplay: string;
range: Range;
}
export interface Hyperlinks extends Collection<Hyperlink> {
}
export interface Document {
fields: Fields;
paragraphs: Paragraphs;
hyperlinks: Hyperlinks;
builtInDocumentProperties: Collection<any>;
close(saveChanges: boolean): void;
range(): Range;
}
export interface Documents extends Collection<Document> {
open(filename: string): Document;
}
export interface Application {
documents: Documents;
quit(): void;
}
}
var sys = (function () {
var fileStream = new ActiveXObject("ADODB.Stream");
fileStream.Type = 2 /*text*/;
var binaryStream = new ActiveXObject("ADODB.Stream");
binaryStream.Type = 1 /*binary*/;
var args: string[] = [];
for (var i = 0; i < WScript.Arguments.length; i++) {
args[i] = WScript.Arguments.Item(i);
}
return {
args: args,
createObject: (typeName: string) => new ActiveXObject(typeName),
write(s: string): void {
WScript.StdOut.Write(s);
},
writeFile: (fileName: string, data: string): void => {
fileStream.Open();
binaryStream.Open();
try {
// Write characters in UTF-8 encoding
fileStream.Charset = "utf-8";
fileStream.WriteText(data);
// We don't want the BOM, skip it by setting the starting location to 3 (size of BOM).
fileStream.Position = 3;
fileStream.CopyTo(binaryStream);
binaryStream.SaveToFile(fileName, 2 /*overwrite*/);
}
finally {
binaryStream.Close();
fileStream.Close();
}
}
};
})();
interface FindReplaceOptions {
style?: any;
font?: {
bold?: boolean;
italic?: boolean;
subscript?: boolean;
};
}
function convertDocumentToMarkdown(doc: Word.Document): string {
var result: string = "";
var lastStyle: string;
var lastInTable: boolean;
var tableColumnCount: number;
var tableCellIndex: number;
var columnAlignment: number[] = [];
function setProperties(target: any, properties: any) {
for (var name in properties) {
if (properties.hasOwnProperty(name)) {
var value = properties[name];
if (typeof value === "object") {
setProperties(target[name], value);
}
else {
target[name] = value;
}
}
}
}
function findReplace(findText: string, findOptions: FindReplaceOptions, replaceText: string, replaceOptions: FindReplaceOptions) {
var find = doc.range().find;
find.clearFormatting();
setProperties(find, findOptions);
var replace = find.replacement;
replace.clearFormatting();
setProperties(replace, replaceOptions);
find.execute(findText, false, false, false, false, false, true, 0, true, replaceText, 2);
}
function fixHyperlinks() {
var count = doc.hyperlinks.count;
for (var i = 0; i < count; i++) {
var hyperlink = doc.hyperlinks.item(i + 1);
var address = hyperlink.address;
if (address && address.length > 0) {
var textToDisplay = hyperlink.textToDisplay;
hyperlink.textToDisplay = "[" + textToDisplay + "](" + address + ")";
}
}
}
function write(s: string) {
result += s;
}
function writeTableHeader() {
for (var i = 0; i < tableColumnCount - 1; i++) {
switch (columnAlignment[i]) {
case 1:
write("|:---:");
break;
case 2:
write("|---:");
break;
default:
write("|---");
}
}
write("|\n");
}
function trimEndFormattingMarks(text: string) {
var i = text.length;
while (i > 0 && text.charCodeAt(i - 1) < 0x20) i--;
return text.substr(0, i);
}
function writeBlockEnd() {
switch (lastStyle) {
case "Code":
write("```\n\n");
break;
case "List Paragraph":
case "Table":
case "TOC":
write("\n");
break;
}
}
function writeParagraph(p: Word.Paragraph) {
var range = p.range;
var text = range.text;
var style = p.style.nameLocal;
var inTable = range.tables.count > 0;
var level = 1;
var sectionBreak = text.indexOf("\x0C") >= 0;
text = trimEndFormattingMarks(text);
if (text === "/") {
// An inline image shows up in the text as a "/". When we see a paragraph
// consisting of nothing but "/", we check to see if the paragraph contains
// hidden text and, if so, emit that instead. The hidden text is assumed to
// contain an appropriate markdown image link.
range.textRetrievalMode.includeHiddenText = true;
var fullText = range.text;
range.textRetrievalMode.includeHiddenText = false;
if (text !== fullText) {
text = "  " + fullText.substr(1);
}
}
if (inTable) {
style = "Table";
}
else if (style.match(/\s\d$/)) {
level = +style.substr(style.length - 1);
style = style.substr(0, style.length - 2);
}
if (lastStyle && style !== lastStyle) {
writeBlockEnd();
}
switch (style) {
case "Heading":
case "Appendix":
var section = range.listFormat.listString;
write("####".substr(0, level) + ' <a name="' + section + '"/>' + section + " " + text + "\n\n");
break;
case "Normal":
if (text.length) {
write(text + "\n\n");
}
break;
case "List Paragraph":
write(" ".substr(0, range.listFormat.listLevelNumber * 2 - 2) + "* " + text + "\n");
break;
case "Grammar":
write("  " + text.replace(/\s\s\s/g, " ").replace(/\x0B/g, " \n   ") + "\n\n");
break;
case "Code":
if (lastStyle !== "Code") {
write("```TypeScript\n");
}
else {
write("\n");
}
write(text.replace(/\x0B/g, " \n") + "\n");
break;
case "Table":
if (!lastInTable) {
tableColumnCount = range.tables.item(1).columns.count + 1;
tableCellIndex = 0;
}
if (tableCellIndex < tableColumnCount) {
columnAlignment[tableCellIndex] = p.alignment;
}
write("|" + text);
tableCellIndex++;
if (tableCellIndex % tableColumnCount === 0) {
write("\n");
if (tableCellIndex === tableColumnCount) {
writeTableHeader();
}
}
break;
case "TOC Heading":
write("## " + text + "\n\n");
break;
case "TOC":
var strings = text.split("\t");
write(" ".substr(0, level * 2 - 2) + "* [" + strings[0] + " " + strings[1] + "](#" + strings[0] + ")\n");
break;
}
if (sectionBreak) {
write("<br/>\n\n");
}
lastStyle = style;
lastInTable = inTable;
}
function writeDocument() {
var title = doc.builtInDocumentProperties.item(1) + "";
if (title.length) {
write("# " + title + "\n\n");
}
for (var p = doc.paragraphs.first; p; p = p.next()) {
writeParagraph(p);
}
writeBlockEnd();
}
findReplace("<", {}, "<", {});
findReplace("<", { style: "Code" }, "<", {});
findReplace("<", { style: "Code Fragment" }, "<", {});
findReplace("<", { style: "Terminal" }, "<", {});
findReplace("", { font: { subscript: true } }, "<sub>^&</sub>", { font: { subscript: false } });
findReplace("", { style: "Code Fragment" }, "`^&`", { style: -66 /* default font */ });
findReplace("", { style: "Production" }, "*^&*", { style: -66 /* default font */});
findReplace("", { style: "Terminal" }, "`^&`", { style: -66 /* default font */});
findReplace("", { font: { bold: true, italic: true } }, "***^&***", { font: { bold: false, italic: false } });
findReplace("", { font: { italic: true } }, "*^&*", { font: { italic: false } });
doc.fields.toggleShowCodes();
findReplace("^19 REF", {}, "[^&](#^&)", {});
doc.fields.toggleShowCodes();
fixHyperlinks();
writeDocument();
result = result.replace(/\x85/g, "\u2026");
result = result.replace(/\x96/g, "\u2013");
result = result.replace(/\x97/g, "\u2014");
return result;
}
function main(args: string[]) {
if (args.length !== 2) {
sys.write("Syntax: word2md <inputfile> <outputfile>\n");
return;
}
var app: Word.Application = sys.createObject("Word.Application");
var doc = app.documents.open(args[0]);
sys.writeFile(args[1], convertDocumentToMarkdown(doc));
doc.close(false);
app.quit();
}
main(sys.args);