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var _ = require('lodash');
var MarkupIt = require('markup-it');
var gitbookSyntax = require('markup-it/syntaxes/markdown');
var RAW_START = '{% raw %}';
var RAW_END = '{% endraw %}';
var markdown = new MarkupIt(gitbookSyntax);
/**
* Escape a code block's content using raw blocks
*
* @param {String}
* @return {String}
*/
function escape(str) {
return RAW_START + str + RAW_END;
}
/**
* Add templating "raw" to code blocks to
* avoid nunjucks processing their content.
*
* @param {String} src
* @return {String}
*/
function preparePage(src) {
var levelRaw = 0;
var content = markdown.toContent(src, {
math: true,
template: true
});
var textMarkdown = markdown.toText(content, {
annotate: function(state, raw, token) {
var tokenType = token.getType();
if (tokenType === MarkupIt.ENTITIES.TEMPLATE) {
var type = token.getData().get('type');
var expr = token.getAsPlainText();
if (type === 'expr') {
if (expr === 'raw') {
levelRaw = levelRaw + 1;
} else if (expr == 'endraw') {
levelRaw = 0;
}
}
}
if (
(tokenType === MarkupIt.BLOCKS.CODE || tokenType === MarkupIt.STYLES.CODE)
&& levelRaw === 0
) {
return escape(raw);
}
return raw;
}
});
return textMarkdown;
}
module.exports = {
prepare: preparePage
};
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