Recognise shebangs

[jalanb]

Syntax highlighting seems to br triggered by file types, i.e. file extensions. So that fred.py is highligghted as Python syntax. Unfortunately this means that a file called just fred, which is executable and has #! /usr/bin/env python on the first line is not recognised, hence not highlighted.

[juftin]

Oh this is a good idea. I'm using the rich.syntax.Syntax.guess_lexer method from Rich to handle this currently since the Syntax class is handling almost everything else. In turn it uses pygments to handle it.

https://rich.readthedocs.io/en/stable/reference/syntax.html#rich.syntax.Syntax.guess_lexer

browsr/browsr/browsr.py

Lines 175 to 184 in 26a1bf3

	code = "\n".join(code_lines[:1000])
	lexer = Syntax.guess_lexer(str(document), code=code)
	return Syntax(
	code=code,
	lexer=lexer,
	line_numbers=self.linenos,
	word_wrap=False,
	indent_guides=False,
	theme=self.rich_themes[self.theme_index],
	)

I wonder if checking for a shebang would be a welcome addition to the upstream libraries too.