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var path = require('path');
var Immutable = require('immutable');
var markdownParser = require('gitbook-markdown');
var asciidocParser = require('gitbook-asciidoc');
var EXTENSIONS_MARKDOWN = require('./constants/extsMarkdown');
var EXTENSIONS_ASCIIDOC = require('./constants/extsAsciidoc');
var Parser = require('./models/parser');
// This list is ordered by priority of parsers to use
var parsers = Immutable.List([
Parser.create('markdown', EXTENSIONS_MARKDOWN, markdownParser),
Parser.create('asciidoc', EXTENSIONS_ASCIIDOC, asciidocParser)
]);
/**
* Return a specific parser by its name
*
* @param {String} name
* @return {Parser|undefined}
*/
function getParser(name) {
return parsers.find(function(parser) {
return parser.getName() === name;
});
}
/**
* Return a specific parser according to an extension
*
* @param {String} ext
* @return {Parser|undefined}
*/
function getParserByExt(ext) {
return parsers.find(function(parser) {
return parser.matchExtension(ext);
});
}
/**
* Return parser for a file
*
* @param {String} ext
* @return {Parser|undefined}
*/
function getParserForFile(filename) {
return getParserByExt(path.extname(filename));
}
// List all parsable extensions
var extensions = parsers
.map(function(parser) {
return parser.getExtensions();
})
.flatten();
module.exports = {
extensions: extensions,
get: getParser,
getByExt: getParserByExt,
getForFile: getParserForFile
};
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