JSON5.stringify produces a String that conforms to the following JSON5 grammar.
JSON5.parse accepts a String that conforms to the JSON5 grammar.
[JSON5][json] is similar to [ECMAScript][ecmascript] source text in that it consists of a sequence of characters conforming to the rules of
Each file in this Gist is a different method of checking whether a string is an ECMAScript 5.1 identifier.
Each method consists of four data structures representing classes of Unicode characters. There are two main categories of data structures: letters and other characters. Identifiers must start with a character from the letters category (also $ or _), then they may optionally be followed by zero or more characters from the others category.
Each category has two sub-categories: singles and ranges. The singles are characters that only have zero or one adjacent characters within the same class according to their code point values. Every pair of characters in the ranges category compose a set of consecutive characters within the same class according to their code point values.
So, if composed to regular expressions, the categories resemble this:
| @echo off | |
| net session > nul 2>&1 | |
| if /i not %errorlevel%==0 ( | |
| echo You must run this from an elevated prompt. | |
| goto:eof | |
| ) | |
| call :setreg "HKCR\Directory\shell\runas" | |
| call :setreg "HKCR\Directory\Background\shell\runas" |