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convert a javascript file to only contain singlequotes.
'use strict';
/*eslint-env node */
var fs = require('fs'),
esprima = require('esprima');
var input = process.argv[2],
output = input,
offset = 0,
content = fs.readFileSync(input, 'utf-8'),
tokens = esprima.parse(content, { tokens: true, range: true }).tokens;
function convert(literal) {
var result = literal.substring(1, literal.length - 1);
result = result.replace(/'/g, '\'');
return '\'' + result + '\'';
}
tokens.forEach(function (token) {
var str;
if (token.type === 'String' && token.value[0] !== '\'') {
str = convert(token.value);
content = content.substring(0, offset + token.range[0]) + str +
content.substring(offset + token.range[1], content.length);
offset += (str.length - token.value.length);
}
});
fs.writeFileSync(output, content);
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