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August 13, 2016 13:57
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Use Vim's :TOhtml to make the core of a syntax highlighter.
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| #! /usr/bin/env ruby | |
| require 'tempfile' | |
| require 'vimrunner' | |
| require 'nokogiri' | |
| require 'json' | |
| if ARGV.count < 2 | |
| puts "USAGE: tohtml <colorscheme-file> <filename> [filenames ...]" | |
| exit 1 | |
| end | |
| def parse_html(html) | |
| doc = Nokogiri::HTML(html) | |
| styles = [] | |
| doc.css('style').first.content.split("\n").each do |line| | |
| line = line.strip | |
| next if line == '<!--' or line == '-->' | |
| styles << line | |
| end | |
| code = doc.css('#vimCodeElement').first.children.to_s | |
| [styles, code] | |
| end | |
| colorscheme_file = ARGV[0] | |
| filenames = ARGV[1, ARGV.length].dup | |
| css_definitions = [] | |
| code_blocks = [] | |
| Vimrunner.start_gvim do |vim| | |
| vim.command("source #{colorscheme_file}") | |
| filenames.each do |filename| | |
| styles = nil | |
| code = nil | |
| Tempfile.open('tohtml') do |output| | |
| vim.edit(filename) | |
| vim.command('TOhtml') | |
| vim.command("saveas! #{output.path}") | |
| vim.command('quit') | |
| styles, code = parse_html(output.read) | |
| end | |
| css_definitions += styles | |
| code_blocks << code | |
| end | |
| end | |
| puts({'css' => css_definitions.uniq, 'code' => code_blocks}.to_json) |
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| require 'json' | |
| json = %x[tohtml ~/.vim/colors/andrew.vim test.py html_test.rb] | |
| data = JSON.parse(json) | |
| style = data['css'].join("\n") | |
| code = data['code'].map do |code_block| | |
| "<pre>#{code_block}</pre>" | |
| end.join("\n<br>\n") | |
| puts <<-HTML | |
| <html> | |
| <head> | |
| <title>Tohtml</title> | |
| <style> | |
| #{style} | |
| </style> | |
| </head> | |
| <body> | |
| #{code} | |
| </body> | |
| </html> | |
| HTML |
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