--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Manpages rendering of Markdown documents
+module markdown_man_rendering
+
+import markdown_rendering
+
+# Markdown document renderer to Manpage
+class ManRenderer
+ super MdRenderer
+
+ # Output under construction
+ private var man: Buffer is noinit
+
+ # Render `node` as Markdown
+ redef fun render(node) do
+ man = new Buffer
+ enter_visit(node)
+ return man.write_to_string
+ end
+
+ redef fun visit(node) do node.render_man(self)
+
+ # Add `string` to `man`
+ fun add(string: String) do
+ man.append(string.replace("-", "\\-"))
+ end
+
+ # Add code that need to be escaped
+ fun add_code(code: String) do
+ add code.replace(" ", "\\ ")
+ end
+
+ # Add a blank line to the output
+ fun add_line do
+ add "\n"
+ end
+end
+
+redef class MdNode
+
+ # Render `self` as Manpage format
+ fun render_man(v: ManRenderer) do visit_all(v)
+end
+
+# Blocks
+
+redef class MdBlockQuote
+ redef fun render_man(v) do
+ v.add ".RS"
+ visit_all(v)
+ v.add ".RE"
+ v.add_line
+ end
+end
+
+redef class MdCodeBlock
+ redef fun render_man(v) do
+ v.add ".RS\n.nf\n\\f[C]"
+ v.add_line
+
+ var literal = self.literal
+ if literal != null then
+ var lines = literal.split("\n")
+ for i in [0 .. lines.length[ do
+ if i == lines.length - 1 then break
+ var line = lines[i]
+ v.add_code line
+ v.add_line
+ end
+ end
+
+ v.add "\\f[]\n.fi\n.RE"
+ v.add_line
+ end
+end
+
+redef class MdHeading
+ redef fun render_man(v) do
+ var level = self.level
+
+ if level == 1 then
+ v.add ".SH "
+ else if level == 2 then
+ v.add ".SS "
+ else if level >= 3 then
+ # We use dictionary (titled paragraph) to simulate a 3rd level (or more)
+ v.add ".TP\n"
+ end
+ visit_all(v)
+ v.add_line
+ end
+end
+
+redef class MdUnorderedList
+ redef fun render_man(v) do
+ v.add ".RS"
+ v.add_line
+
+ var node = first_child
+ while node != null do
+ v.add ".IP \\[bu] 3"
+ v.add_line
+ v.enter_visit node
+ v.add_line
+ node = node.next
+ end
+
+ v.add ".RE"
+ v.add_line
+ end
+end
+
+redef class MdOrderedList
+ redef fun render_man(v) do
+ v.add ".RS"
+ v.add_line
+
+ var index = start_number
+ var node = first_child
+ while node != null do
+ v.add ".IP \"{index}.\" 3"
+ v.add_line
+ v.enter_visit node
+ v.add_line
+ node = node.next
+ index += 1
+ end
+
+ v.add ".RE"
+ v.add_line
+ end
+end
+
+redef class MdParagraph
+ redef fun render_man(v) do
+ var in_list = is_in_list
+ if not in_list then
+ v.add_line
+ end
+ visit_all(v)
+ if not in_list then
+ v.add_line
+ end
+ end
+end
+
+redef class MdThematicBreak
+ redef fun render_man(v) do
+ v.add "***"
+ v.add_line
+ end
+end
+
+redef class MdHtmlBlock
+ redef fun render_man(v) do
+ v.add_line
+ v.add literal or else ""
+ v.add_line
+ end
+end
+
+# Inlines
+
+redef class MdLineBreak
+ redef fun render_man(v) do
+ v.add_line
+ end
+end
+
+redef class MdCode
+ redef fun render_man(v) do
+ v.add "\\f[C]"
+ v.add_code literal
+ v.add "\\f[]"
+ end
+end
+
+redef class MdEmphasis
+ redef fun render_man(v) do
+ v.add "\\f[I]"
+ visit_all(v)
+ v.add "\\f[]"
+ end
+end
+
+redef class MdStrongEmphasis
+ redef fun render_man(v) do
+ v.add "\\f[B]"
+ visit_all(v)
+ v.add "\\f[]"
+ end
+end
+
+redef class MdHtmlInline
+ redef fun render_man(v) do
+ v.add literal
+ end
+end
+
+redef class MdLinkOrImage
+ redef fun render_man(v) do
+ var title = self.title
+
+ visit_all(v)
+ v.add " ("
+ v.add destination
+ if title != null and not title.is_empty then
+ v.add " "
+ v.add title
+ end
+ v.add ")"
+ end
+end
+
+redef class MdText
+ redef fun render_man(v) do
+ v.add literal
+ end
+end
nitlanguage / nit.git / blobdiff