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var Promise = require('../utils/promise');
var error = require('../utils/error');
var lookupStructureFile = require('./lookupStructureFile');
/**
Parse a ParsableFile using a specific method
@param {FS} fs
@param {ParsableFile} file
@param {String} type
@return {Promise<Array<String, List|Map>>}
*/
function parseFile(fs, file, type) {
var filepath = file.getPath();
var parser = file.getParser();
if (!parser) {
return Promise.reject(
error.FileNotParsableError({
filename: filepath
})
);
}
return fs.readAsString(filepath)
.then(function(content) {
if (type === 'readme') {
return parser.parseReadme(content);
} else if (type === 'glossary') {
return parser.parseGlossary(content);
} else if (type === 'summary') {
return parser.parseSummary(content);
} else if (type === 'langs') {
return parser.parseLanguages(content);
} else {
throw new Error('Parsing invalid type "' + type + '"');
}
})
.then(function(result) {
return [
file,
result
];
});
}
/**
Parse a structure file (ex: SUMMARY.md, GLOSSARY.md).
It uses the configuration to find the specified file.
@param {Book} book
@param {String} type: one of ["glossary", "readme", "summary"]
@return {Promise<List|Map>}
*/
function parseStructureFile(book, type) {
var fs = book.getContentFS();
return lookupStructureFile(book, type)
.then(function(file) {
if (!file) return [undefined, undefined];
return parseFile(fs, file, type);
});
}
module.exports = parseStructureFile;
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