html-code-start
Find js code start point, skip any whitespace and comments.
When you want to place some code at beginning of HTML file, you don't want to messup <!doctype> and html structure, so this module help find the first real code beginning in head, thus skip any whitespace, comments, and !doctype, html, head tag.
Usage
const findStart = var code = `<!--oiasdjf--><!doctype html><html title="as>df"></head><head><script>var a=1;</script>`consoleThe result is
{ start: 68,
line: 6,
col: 0,
quirks: false,
ast:
[ { type: 1, start: 0, end: 0 },
{ type: 3, start: 1, end: 14 },
{ type: 1, start: 15, end: 15 },
{ type: '!doctype', start: 16, end: 30, isTag: false, isClose: false },
{ type: 1, start: 31, end: 31 },
{ type: 'html', start: 32, end: 51, isTag: true, isClose: false },
{ type: 1, start: 52, end: 52 },
{ type: 'head', start: 53, end: 59, isTag: true, isClose: true },
{ type: 1, start: 60, end: 60 },
{ type: 'head', start: 61, end: 66, isTag: true, isClose: false },
{ type: 1, start: 67, end: 67 } ] }
And the js code start point is 68 (before < char of <script>), and not quirks mode.
Note
The line number start from 1, but the column number start from 0, this is follow the Emacs convention.