improving minify can lead to 10kB saved

[fab2713]

Hi,

Seems that HTML and CSS are nor really minified in the .min.js file.
From my tests with the quick and dirty Python script below, more than 10kB may be saved (from 97260 bytes to 86464 bytes with current overtype version):

import re

with open('overtype.min.js', 'r') as f:
    content = f.read()

def minify_html(match):
    return re.sub(r'[\s\t]+', ' ', re.sub(r'[\n\r]+[\s\t]*', '', match.group(0)))

def minify_css(match):
    return re.sub(r' ?([,;:{}]) ?', '\\1', re.sub(r'[\n\r\s\t]+', ' ', re.sub(r'/\*[^\*]+\*/', '', match.group(0))))

content = re.sub(r'(`[^`]+ class="overtype-stat"[^`]+`)', minify_html, content)
content = re.sub(r'(`[^`]*<svg [^`]+`)', minify_html, content)
content = re.sub(r'(`[^`]+ @media [^`]+`)', minify_css, content)
content = re.sub(r'(`[^`]+/\*[^`]+\*/[^`]+`)', minify_css, content)
content = re.sub(r'(`[^`]+/\*[^`]+\*/[^`]+`)', minify_css, content)

with open('overtype.min2.js', 'w') as f:
    f.write(content)

Feel free to adapt this or not.

Thanks for your work on this project.

[panphora]

Shipped in v2.3.8 (commit d1c0ed1).

Root cause: esbuild doesn't minify text inside JS template literals, so the giant CSS template in `src/styles.js` and the SVG strings in `src/icons.js` shipped with all their original whitespace, indentation, and `/* comments */`.

Fix: a small esbuild plugin scoped to those two files that minifies the literal segments of each template literal while preserving `${...}` interpolations exactly. Drops CSS comments, collapses runs of whitespace, removes whitespace around CSS operators (`{};,`) and between adjacent SVG/HTML tags.

Result:

• `dist/overtype.min.js`: 119KB → 110KB (~9KB / 7.5%)
• `dist/overtype-webcomponent.min.js`: 129KB → 119KB (~10KB / 7.7%)

Verified against the demo page (4 editor instances) and the custom-theme example: all alignment-critical CSS still matches between textarea and preview layers, no console errors, full test suite passes.

Thanks @fab2713 for the suggestion and the working Python prototype that proved the savings were real.