+++ /dev/null
-'use strict';
-
-var xtend = require('xtend');
-var encode = require('stringify-entities');
-var defaults = require('./defaults');
-var escapeFactory = require('./escape');
-var returner = require('./util/returner');
-
-module.exports = setOptions;
-
-/* Map of applicable enum's. */
-var maps = {
- entities: {true: true, false: true, numbers: true, escape: true},
- bullet: {'*': true, '-': true, '+': true},
- rule: {'-': true, _: true, '*': true},
- listItemIndent: {tab: true, mixed: true, 1: true},
- emphasis: {_: true, '*': true},
- strong: {_: true, '*': true},
- fence: {'`': true, '~': true}
-};
-
-/* Expose `validate`. */
-var validate = {
- boolean: validateBoolean,
- string: validateString,
- number: validateNumber,
- function: validateFunction
-};
-
-/* Set options. Does not overwrite previously set
- * options. */
-function setOptions(options) {
- var self = this;
- var current = self.options;
- var ruleRepetition;
- var key;
-
- if (options == null) {
- options = {};
- } else if (typeof options === 'object') {
- options = xtend(options);
- } else {
- throw new Error('Invalid value `' + options + '` for setting `options`');
- }
-
- for (key in defaults) {
- validate[typeof defaults[key]](options, key, current[key], maps[key]);
- }
-
- ruleRepetition = options.ruleRepetition;
-
- if (ruleRepetition && ruleRepetition < 3) {
- raise(ruleRepetition, 'options.ruleRepetition');
- }
-
- self.encode = encodeFactory(String(options.entities));
- self.escape = escapeFactory(options);
-
- self.options = options;
-
- return self;
-}
-
-/* Throw an exception with in its `message` `value`
- * and `name`. */
-function raise(value, name) {
- throw new Error('Invalid value `' + value + '` for setting `' + name + '`');
-}
-
-/* Validate a value to be boolean. Defaults to `def`.
- * Raises an exception with `context[name]` when not
- * a boolean. */
-function validateBoolean(context, name, def) {
- var value = context[name];
-
- if (value == null) {
- value = def;
- }
-
- if (typeof value !== 'boolean') {
- raise(value, 'options.' + name);
- }
-
- context[name] = value;
-}
-
-/* Validate a value to be boolean. Defaults to `def`.
- * Raises an exception with `context[name]` when not
- * a boolean. */
-function validateNumber(context, name, def) {
- var value = context[name];
-
- if (value == null) {
- value = def;
- }
-
- if (isNaN(value)) {
- raise(value, 'options.' + name);
- }
-
- context[name] = value;
-}
-
-/* Validate a value to be in `map`. Defaults to `def`.
- * Raises an exception with `context[name]` when not
- * in `map`. */
-function validateString(context, name, def, map) {
- var value = context[name];
-
- if (value == null) {
- value = def;
- }
-
- value = String(value);
-
- if (!(value in map)) {
- raise(value, 'options.' + name);
- }
-
- context[name] = value;
-}
-
-/* Validate a value to be function. Defaults to `def`.
- * Raises an exception with `context[name]` when not
- * a function. */
-function validateFunction(context, name, def) {
- var value = context[name];
-
- if (value == null) {
- value = def;
- }
-
- if (typeof value !== 'function') {
- raise(value, 'options.' + name);
- }
-
- context[name] = value;
-}
-
-/* Factory to encode HTML entities.
- * Creates a no-operation function when `type` is
- * `'false'`, a function which encodes using named
- * references when `type` is `'true'`, and a function
- * which encodes using numbered references when `type` is
- * `'numbers'`. */
-function encodeFactory(type) {
- var options = {};
-
- if (type === 'false') {
- return returner;
- }
-
- if (type === 'true') {
- options.useNamedReferences = true;
- }
-
- if (type === 'escape') {
- options.escapeOnly = true;
- options.useNamedReferences = true;
- }
-
- return wrapped;
-
- /* Encode HTML entities using the bound options. */
- function wrapped(value) {
- return encode(value, options);
- }
-}