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index.js
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index.js
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var _ = require('lodash');
var jstoxml = require('jstoxml');
var React = require('react');
var componentToJson = function (component, config) {
var componentJson = {};
var componentArray = [];
var name;
if (_.isArray(component)) {
_.forEach(component, function (item) {
componentArray.push(componentToJson(item, config));
});
return componentArray;
}
if (component.type && (component.type.displayName || component.type.name)) {
name = component.type.displayName || component.type.name;
} else if (component.type) {
name = component.type;
} else {
return component;
}
var children;
if (component.props && component.props.children) {
children = component.props.children;
children = _.isArray(children) ? children : [children];
children = _.map(children, function (child, config) {
return componentToJson(child, config);
});
}
var matchingProps;
if (component.type && component.type.defaultProps) {
matchingProps = _.omit(component.props, function (val, key) {
return component.type.defaultProps[key] === component.props[key];
});
} else {
matchingProps = component.props;
}
var props = _.chain(matchingProps)
.omit(['children'])
.transform(function (result, prop, key) {
if (_.isUndefined(prop)) {
return;
} else if (_.isNull(prop) && !config.includeNull) {
return;
} else if (config.exclude && config.exclude.indexOf(key) !== -1) {
return;
} else if (_.isString(prop)) {
result[key] = prop;
} else if (_.isFunction(prop)) {
result[key] = 'LITERAL!function!LITERAL';
} else if (React.isValidElement(prop)) {
result[key] = 'LITERAL!ReactElement!LITERAL';
} else {
var stringified;
try {
stringified = JSON.stringify(prop);
} catch(e) {
stringified = '[Circular JSON]';
}
result[key] = 'LITERAL!' + stringified + '!LITERAL';
}
})
.value();
componentJson = {
_name: name,
_attrs: props,
_content: children
};
return componentJson;
}
var reactToJsx = function (component, options) {
var defaults = {
indent: '\t',
includeNull: true,
exclude: []
};
var config = _.extend({}, defaults, options);
var componentXml = jstoxml.toXML(componentToJson(component, config), {
indent: config.indent
});
componentXml = componentXml
.replace(/"LITERAL!/g, '{')
.replace(/!LITERAL"/g, '}')
var componentArray = componentXml.split('\n');
componentArray = _.map(componentArray, function (line) {
var attributeMatcher = /\s+(?=\S*=)/g;
if ((line.match(attributeMatcher) || []).length < 2) {
return line;
}
var indentRegex = new RegExp(config.indent, 'g');
var indentDepth = (line.match(indentRegex) || []).length;
var newlineString = '\n' + config.indent;
for (var i = 0; i < indentDepth; i++) {
newlineString += config.indent;
}
line = line.replace(attributeMatcher, newlineString);
return line;
});
componentXml = componentArray.join('\n');
return componentXml;
};
module.exports = reactToJsx;