initial commit

exe/yamd

@@ -0,0 +1,137 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+# YAMD
+# Copyright (C) 2025 kp2pml30
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+require 'bundler/setup'
+
+require 'pathname'
+
+require 'yamd'
+require 'yamd/code'
+require 'erb'
+
+require 'asciimath'
+
+class HTMLRenderer < YAMD::Renderer
+	def str(s)
+		@buf << ERB::Util.html_escape(s)
+	end
+
+	def new_line
+		@buf << "</br>"
+	end
+
+	def _list_marker(chr, &blk)
+		t, attrs = case chr
+		when "1", "a", "A", "i", "I"
+			["ol", {"type" => chr}]
+		when "-"
+			["ul", {}]
+		else
+			raise "unknown tag #{chr}"
+		end
+		tag(t, **attrs, &blk)
+	end
+
+	def list(numbering, &blk)
+		old_create_sublist = @create_sublist
+		old_list_stack = @list_stack.clone
+		begin
+			@create_sublist = false
+			@list_stack = numbering.split('.').reverse
+			_list_marker(@list_stack.pop, &blk)
+		ensure
+			@create_sublist = old_create_sublist
+			@list_stack = old_list_stack
+		end
+	end
+
+	def list_item(&blk)
+		if @create_sublist
+			begin
+				@create_sublist = false
+				old_list_stack = @list_stack.clone
+
+				_list_marker(@list_stack.pop) {
+					list_item(&blk)
+				}
+			ensure
+				@create_sublist = true
+				@list_stack = old_list_stack
+			end
+
+			return
+		end
+
+		tag("li") {
+			oldVal = @create_sublist
+			begin
+				@create_sublist = true
+
+				blk.()
+			ensure
+				@create_sublist = oldVal
+			end
+		}
+	end
+
+	def tag(name, **attrs)
+		@buf << "<#{name}"
+		attrs.each { |k, v|
+			@buf << " " << k << "=" << v.dump
+		}
+		@buf << ">"
+		yield
+		@buf << "</#{name}>"
+	end
+
+	def code(**attrs, &blk)
+		tag('pre') {
+			tag('code', **attrs) {
+				@buf << YAMD::Code::highlight(blk.())
+			}
+		}
+	end
+
+	def inline_code(text)
+		tag('code') {
+			@buf << YAMD::Code::highlight(text)
+		}
+	end
+
+	def inline_math(text)
+		parsed = AsciiMath.parse(text)
+		@buf << parsed.to_mathml
+	end
+end
+
+File.open(ARGV[0]) { |f|
+	state = YAMD::State.new f
+	ctx = YAMD::Context.new 0
+
+	YAMD::parseContent state, ctx
+
+	code = state.output.finalize
+	puts code
+
+	renderer = HTMLRenderer.new
+
+	eval(code).(renderer)
+	puts renderer.finalize
+
+}