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/**
* @author Titus Wormer
* @copyright 2015 Titus Wormer
* @license MIT
* @module remark:parse:decode
* @fileoverview Decode entities.
*/
'use strict';
var entities = require('parse-entities');
module.exports = factory;
/* Factory to create an entity decoder. */
function factory(ctx) {
decoder.raw = decodeRaw;
return decoder;
/* Normalize `position` to add an `indent`. */
function normalize(position) {
var offsets = ctx.offset;
var line = position.line;
var result = [];
while (++line) {
if (!(line in offsets)) {
break;
}
result.push((offsets[line] || 0) + 1);
}
return {
start: position,
indent: result
};
}
/* Handle a warning.
* See https://github.com/wooorm/parse-entities
* for the warnings. */
function handleWarning(reason, position, code) {
if (code === 3) {
return;
}
ctx.file.message(reason, position);
}
/* Decode `value` (at `position`) into text-nodes. */
function decoder(value, position, handler) {
entities(value, {
position: normalize(position),
warning: handleWarning,
text: handler,
reference: handler,
textContext: ctx,
referenceContext: ctx
});
}
/* Decode `value` (at `position`) into a string. */
function decodeRaw(value, position) {
return entities(value, {
position: normalize(position),
warning: handleWarning
});
}
}
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