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'use strict';
function escapeHTML(str) {
return str.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
}
function joinLines(state, begin, end) {
return state.src.slice(
state.bMarks[begin],
end < state.lineMax ? state.bMarks[end] : state.src.length
);
}
var rules = {};
rules.code = function (state, token) {
// TODO: check if we need variable indent cut
var lines = joinLines(state, token.startLine, token.endLine).replace(/^ {4}/gm, '');
state.result += '<pre><code>' + escapeHTML(lines) + '</code></pre>\n';
};
rules.heading_open = function (state, token) {
state.result += '<h' + token.level + '>';
};
rules.heading_close = function (state, token) {
state.result += '</h' + token.level + '>\n';
};
rules.hr = function (state, token) {
state.result += '<hr>\n';
};
rules.paragraph_open = function (state, token) {
state.result += '<p>';
};
rules.paragraph_close = function (state, token) {
state.result += '</p>\n';
};
rules.text = function (state, token) {
state.result += escapeHTML(state.src.slice(token.begin, token.end));
};
// TODO: Stub. Do extendable.
function Renderer() {
}
Renderer.prototype.render = function (state) {
var i, len, rule,
tokens = state.tokens;
for (i = 0, len = tokens.length; i < len; i++) {
rule = rules[tokens[i].type];
// TODO: temporary check
if (!rule) {
throw Error('Renderer error: unknown token ' + tokens[i].type);
}
rule(state, tokens[i]);
}
return state.result;
};
module.exports = Renderer;