1 files changed, 26 insertions, 0 deletions
diff --git a/lib/olddoc/merge.rb b/lib/olddoc/merge.rb
new file mode 100644
index 0000000..da5bd07
--- /dev/null
+++ b/lib/olddoc/merge.rb
@@ -0,0 +1,26 @@
+# Copyright (C) 2015, all contributors <olddoc-public@80x24.org>
+# License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
+
+class Olddoc::Merge
+  def initialize(opts)
+    @merge_html = opts["merge_html"] || {}
+  end
+
+  # FIXME: generate manpages directly from rdoc instead of relying on
+  # pandoc to do it via markdown.
+  def run
+    @merge_html.each do |file, source|
+      rdoc_html = "doc/#{file}.html"
+      fragment = File.read(source)
+      File.open(rdoc_html, "a+") { |fp|
+        html = fp.read
+        if html.sub!(%r{\s*<p>\s*olddoc_placeholder\s*</p>\s*}sm, fragment)
+          fp.truncate(0)
+          fp.write(html)
+        else
+          warn "olddoc_placeholder not found in #{rdoc_html}"
+        end
+      }
+    end
+  end
+end