Add initial version the script.

* markdown_link_style/_version.py (__version__): Update version.
* markdown_link_style/logging.py: New module
* mdl_style.py (logger): Add variable.
(LSBlockLexer, LSInlineLexer, LSRenderer, LSMarkdown)
(LinkStyler): Add classes.
(_mdl_stylize, _get_args): Add functions.
(main): Update function.
* tests/__init__.py: Add file.
* tests/data/autolink_00-expected.md: Add file.
* tests/data/autolink_00.md: Add file.
* tests/data/footnote_link_style_00-expected.md: Add file.
* tests/data/footnote_link_style_00.md: Add file.
* tests/data/inline_link_style_00-expected.md: Add file.
* tests/data/inline_link_style_00.md: Add file.
* tests/test_mdl_style.py (TestMdlStyle): Remove class.
(TestLSRendererIL, TestLSRendererFN): Add classes.

11 files changed, 428 insertions, 5 deletions

diff --git a/markdown_link_style/_version.py b/markdown_link_style/_version.py
index 6ae8753..1562223 100644
--- a/markdown_link_style/_version.py
+++ b/markdown_link_style/_version.py
@@ -18,4 +18,4 @@
 #   along with markdown-link-style (see COPYING).  If not, see
 #   <http://www.gnu.org/licenses/>.
 
-__version__ = '0.1.0.dev0'
+__version__ = '0.1.0.dev1'
diff --git a/markdown_link_style/logging.py b/markdown_link_style/logging.py
new file mode 100644
index 0000000..2395c40
--- /dev/null
+++ b/markdown_link_style/logging.py
@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+#
+#    Copyright © 2017 markdown-link-style contributors. See CONTRIBUTORS.
+#
+#    This file is part of markdown-link-style.
+#
+#   markdown-link-style 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.
+#
+#   markdown-link-style 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 markdown-link-style (see COPYING).  If not, see
+#   <http://www.gnu.org/licenses/>.
+
+import logging
+
+class MDLSLogger(object):
+    """Logging utility for modules in markdown-link-style.
+
+    """
+
+    def __init__(self, name):
+        self.logger = logging.getLogger(name)
+
+    def debug(msg, *args, **kwargs):
+        self.logger.debug(msg, *args, **kwargs)
+
+    def info(msg, *args, **kwargs):
+        self.logger.info(msg, *args, **kwargs)
+
+    def warning(msg, *args, **kwargs):
+        self.logger.warning(msg, *args, **kwargs)
+
+    def error(msg, *args, **kwargs):
+        self.logger.error(msg, *args, **kwargs)
+
+    def critical(msg, *args, **kwargs):
+        self.logger.critical(msg, *args, **kwargs)
+
+    def log(msg, *args, **kwargs):
+        self.logger.log(msg, *args, **kwargs)
+
+    def exception(msg, *args, **kwargs):
+        self.logger.exception(msg, *args, **kwargs)
diff --git a/mdl_style.py b/mdl_style.py
index 44cafab..c8573ed 100644
--- a/mdl_style.py
+++ b/mdl_style.py
@@ -18,5 +18,180 @@
 #   along with markdown-link-style (see COPYING).  If not, see
 #   <http://www.gnu.org/licenses/>.
 
+import argparse
+
+from mistune import BlockLexer, InlineLexer, Renderer, Markdown
+
+from markdown_link_style.logging import MDLSLogger
+from markdown_link_style._version import __version__
+
+# Initialize logger for this module.
+logger = MDLSLogger(__name__)
+
+
+class LSBlockLexer(BlockLexer):
+    """Link Style Block Lexer.
+
+    """
+
+    def __init__(self, rules=None, **kwargs):
+        super(LSBlockLexer, self).__init__(rules, **kwargs)
+
+        # Only parse these block rules.
+        self.default_rules = ['def_links', 'paragraph', 'text']
+
+
+class LSInlineLexer(InlineLexer):
+    """Link Style Inline Lexer.
+
+    """
+
+    def __init__(self, renderer, rules=None, **kwargs):
+        super(LSInlineLexer, self).__init__(renderer, rules, **kwargs)
+
+        # Only parse these inline rules
+        self.default_rules = ['autolink', 'link', 'reflink', 'text']
+
+
+class LSRenderer(Renderer):
+    """Link Style Renderer.
+
+    """
+
+    def __init__(self, **kwargs):
+        super(LSRenderer, self).__init__(**kwargs)
+
+        # Link style is either 'inline' or 'footnote'.
+        self.link_style = self.options.get('link_style')
+
+        self.fn_lnk_num = 0 # footnote style link number
+        self.fn_lnk_refs = [] # footnote style link refs
+
+    def autolink(self, link, is_email=False):
+        return '<{}>'.format(link)
+
+    def paragraph(self, text):
+        p = text
+        fn_refs = self._pop_fn_refs()
+
+        if fn_refs:
+            # Insert footnote refs, if any, after paragraph.
+            return '\n{}\n\n{}'.format(p, fn_refs)
+
+        return '\n{}\n'.format(p)
+
+    def link(self, link, title, text):
+        link_text = self._stylize_link(link, title, text)
+        return link_text
+
+    def _stylize_link(self, link, title, text):
+        if self.link_style == 'inline':
+            return self._gen_inline_link(link, title, text)
+        else:
+            return self._gen_footnote_link(link, title, text)
+
+    def _gen_inline_link(self, link, title, text):
+        if title:
+            return '[{}]({} "{}")'.format(text, link, title)
+        else:
+            return '[{}]({})'.format(text, link)
+
+    def _gen_footnote_link(self, link, title, text):
+        fn_num = self._st_fn_ref(link, title)
+        return '[{}][{}]'.format(text, fn_num)
+
+    def _st_fn_ref(self, link, title):
+        """Store footnote link reference.
+
+        """
+        fn_num = self._get_fn_lnk_num()
+
+        if title:
+            fn_ref = '[{}]: {} ({})'.format(fn_num, link, title)
+        else:
+            fn_ref = '[{}]: {}'.format(fn_num, link)
+
+        self.fn_lnk_refs.append(fn_ref)
+        return fn_num
+
+    def _get_fn_lnk_num(self):
+        """Get footnote link number.
+
+        """
+        fn_num = self.fn_lnk_num
+        self.fn_lnk_num = self.fn_lnk_num + 1
+        return fn_num
+
+    def _pop_fn_refs(self):
+        """Pop all footnote refs and return them as a string.
+
+        """
+        refs = ''
+
+        for ref in self.fn_lnk_refs:
+            refs += '{}\n'.format(ref)
+
+        # empty fn_lnk_refs
+        self.fn_lnk_refs = []
+
+        return refs
+
+
+class LSMarkdown(Markdown):
+    """Link Style Markdown parser.
+    """
+
+    def __init__(self, renderer=None, inline=None, block=None, **kwargs):
+        link_style = kwargs.get('link_style') or 'inline'
+
+        if not renderer:
+            renderer = LSRenderer(link_style=link_style)
+        if not inline:
+            inline = LSInlineLexer(renderer)
+        if not block:
+            block = LSBlockLexer()
+
+        super(LSMarkdown, self).__init__(renderer, inline, block, **kwargs)
+
+    def parse(self, text):
+        out = super(LSMarkdown, self).parse(text)
+
+        return out.lstrip('\n')
+
+
+class LinkStyler(object):
+    """Markdown Link Styler.
+
+    """
+
+    def __init__(self, link_style='inline'):
+        self.style = link_style
+
+    def __call__(self, file_):
+        return self._link_stylize(file_)
+
+    def _link_stylize(self, file_):
+        text = file_.read()
+        md = LSMarkdown(link_style=self.style)
+
+        return md(text)
+
+
+def _mdl_stylize(args):
+    ls = LinkStyler(args.link_style)
+    print(ls(args.file), end='')
+
+
+def _get_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--version', action='version', version=__version__)
+    parser.add_argument('link_style', choices=['inline', 'footnote'],
+                        help="Markdown Link style.")
+    parser.add_argument('file', type=argparse.FileType('r'),
+                        help="Path to Markdown file.")
+    return parser.parse_args()
+
+
 def main():
-    print('md-lnk-style main function')
+    args = _get_args()
+    _mdl_stylize(args)
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tests/__init__.py
diff --git a/tests/data/autolink_00-expected.md b/tests/data/autolink_00-expected.md
new file mode 100644
index 0000000..0e83936
--- /dev/null
+++ b/tests/data/autolink_00-expected.md
@@ -0,0 +1,3 @@
+Information about the GNU project is available at https://gnu.org.
+
+GNU Guix <https://gnu.org/s/guix> is a GNU project.
diff --git a/tests/data/autolink_00.md b/tests/data/autolink_00.md
new file mode 100644
index 0000000..0e83936
--- /dev/null
+++ b/tests/data/autolink_00.md
@@ -0,0 +1,3 @@
+Information about the GNU project is available at https://gnu.org.
+
+GNU Guix <https://gnu.org/s/guix> is a GNU project.
diff --git a/tests/data/footnote_link_style_00-expected.md b/tests/data/footnote_link_style_00-expected.md
new file mode 100644
index 0000000..8ebebb7
--- /dev/null
+++ b/tests/data/footnote_link_style_00-expected.md
@@ -0,0 +1,50 @@
+Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque eu
+sapien vestibulum, dignissim ligula ac, porttitor tortor. Nam
+fringilla turpis vitae ligula vehicula bibendum. Aliquam tristique,
+dolor sed auctor sagittis, sapien augue dapibus lectus, eu consequat
+lectus sapien ut nibh. [Mauris][0] placerat
+pulvinar risus nec viverra. Sed ac mi nec tortor consequat eleifend ac
+a velit. Phasellus tincidunt neque sit amet sapien commodo
+finibus. Praesent id blandit turpis. Vivamus felis metus, iaculis vel
+nisl vitae, [molestie commodo][1]
+lectus. Cras ut augue lacinia, imperdiet lorem quis, [imperdiet
+erat][2]. Integer sed urna ullamcorper, semper nibh non, egestas
+sem. Pellentesque a tincidunt leo, eget vehicula tortor. Curabitur nec
+augue eget urna maximus molestie.
+
+[0]: https://maur.is/blag
+[1]: https://molest.ie/commodo/
+[2]: http://imperdi.et/erat.html
+
+In ultricies augue in nunc pellentesque, congue egestas velit
+sodales. Aenean ac gravida lacus, ut mattis lorem. Aenean auctor eros
+et odio maximus, at tempus nunc euismod. Nulla maximus libero ut nulla
+malesuada posuere at at quam. Ut luctus facilisis ipsum a
+venenatis. Aliquam quis sapien at tellus tincidunt ullamcorper in sed
+arcu. [Phasellus sodales odio nec][3]
+feugiat feugiat. Etiam justo eros, cursus egestas lacus et, tristique
+ullamcorper neque. Duis quis bibendum mi, ut ornare purus. Suspendisse
+mollis fermentum est. Vestibulum ac pellentesque ipsum. Maecenas
+rutrum nunc ac elit bibendum, in vehicula risus egestas. Vestibulum
+ante ipsum primis in [faucibus orci][4]
+luctus et ultrices posuere cubilia Curae; Suspendisse ut nisi vel enim
+volutpat cursus. Curabitur vitae tellus dictum, placerat tellus sit
+amet, volutpat augue. Nam ut dolor sed ipsum lacinia tincidunt a et
+dolor.
+
+[3]: http://phasell.us/wiki/page.html
+[4]: http://faucib.us/projects.html
+
+Proin quis eleifend mi. Curabitur sed venenatis odio, eu sodales
+neque. Integer ultrices ullamcorper dui, in finibus enim tristique
+eget. Nunc ac arcu fermentum, dapibus ex congue, tincidunt metus. Sed
+convallis, erat non eleifend feugiat, orci risus placerat tellus, eu
+tincidunt nibh orci quis magna. Nullam efficitur ac libero dignissim
+sodales. [Nullam massa eros][5], vestibulum id egestas id,
+convallis vitae ex. Maecenas vitae metus finibus, hendrerit arcu a,
+scelerisque quam. Suspendisse ut neque dignissim, egestas libero at,
+varius est. Sed nulla nulla, maximus in nunc in, dignissim interdum
+augue. Aliquam mollis pellentesque lorem. Nulla iaculis luctus
+ultrices.
+
+[5]: http://null.am/articles/massa-eros.html
diff --git a/tests/data/footnote_link_style_00.md b/tests/data/footnote_link_style_00.md
new file mode 100644
index 0000000..298bd1e
--- /dev/null
+++ b/tests/data/footnote_link_style_00.md
@@ -0,0 +1,45 @@
+Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque eu
+sapien vestibulum, dignissim ligula ac, porttitor tortor. Nam
+fringilla turpis vitae ligula vehicula bibendum. Aliquam tristique,
+dolor sed auctor sagittis, sapien augue dapibus lectus, eu consequat
+lectus sapien ut nibh. [Mauris](https://maur.is/blag) placerat
+pulvinar risus nec viverra. Sed ac mi nec tortor consequat eleifend ac
+a velit. Phasellus tincidunt neque sit amet sapien commodo
+finibus. Praesent id blandit turpis. Vivamus felis metus, iaculis vel
+nisl vitae, [molestie commodo](https://molest.ie/commodo/)
+lectus. Cras ut augue lacinia, imperdiet lorem quis, [imperdiet
+erat][imper]. Integer sed urna ullamcorper, semper nibh non, egestas
+sem. Pellentesque a tincidunt leo, eget vehicula tortor. Curabitur nec
+augue eget urna maximus molestie.
+
+[imper]: http://imperdi.et/erat.html
+
+In ultricies augue in nunc pellentesque, congue egestas velit
+sodales. Aenean ac gravida lacus, ut mattis lorem. Aenean auctor eros
+et odio maximus, at tempus nunc euismod. Nulla maximus libero ut nulla
+malesuada posuere at at quam. Ut luctus facilisis ipsum a
+venenatis. Aliquam quis sapien at tellus tincidunt ullamcorper in sed
+arcu. [Phasellus sodales odio nec](http://phasell.us/wiki/page.html)
+feugiat feugiat. Etiam justo eros, cursus egestas lacus et, tristique
+ullamcorper neque. Duis quis bibendum mi, ut ornare purus. Suspendisse
+mollis fermentum est. Vestibulum ac pellentesque ipsum. Maecenas
+rutrum nunc ac elit bibendum, in vehicula risus egestas. Vestibulum
+ante ipsum primis in [faucibus orci](http://faucib.us/projects.html)
+luctus et ultrices posuere cubilia Curae; Suspendisse ut nisi vel enim
+volutpat cursus. Curabitur vitae tellus dictum, placerat tellus sit
+amet, volutpat augue. Nam ut dolor sed ipsum lacinia tincidunt a et
+dolor.
+
+Proin quis eleifend mi. Curabitur sed venenatis odio, eu sodales
+neque. Integer ultrices ullamcorper dui, in finibus enim tristique
+eget. Nunc ac arcu fermentum, dapibus ex congue, tincidunt metus. Sed
+convallis, erat non eleifend feugiat, orci risus placerat tellus, eu
+tincidunt nibh orci quis magna. Nullam efficitur ac libero dignissim
+sodales. [Nullam massa eros][nullam], vestibulum id egestas id,
+convallis vitae ex. Maecenas vitae metus finibus, hendrerit arcu a,
+scelerisque quam. Suspendisse ut neque dignissim, egestas libero at,
+varius est. Sed nulla nulla, maximus in nunc in, dignissim interdum
+augue. Aliquam mollis pellentesque lorem. Nulla iaculis luctus
+ultrices.
+
+[nullam]: http://null.am/articles/massa-eros.html
diff --git a/tests/data/inline_link_style_00-expected.md b/tests/data/inline_link_style_00-expected.md
new file mode 100644
index 0000000..c76751c
--- /dev/null
+++ b/tests/data/inline_link_style_00-expected.md
@@ -0,0 +1,26 @@
+Mauris sit amet urna lacus. Sed id sodales urna. Phasellus accumsan
+sapien a pellentesque ultrices. Pellentesque in semper leo, quis
+ornare ipsum. Phasellus suscipit arcu ac ipsum tristique
+ultrices. [Aliquam erat](http://www.aliquam/erat/) volutpat. Interdum et malesuada
+fames ac ante ipsum primis in faucibus. [Proin aliquam](http://pro.in/projects/aliquam) est ut
+nulla placerat, vitae aliquet velit dictum. Sed quis justo eget sem
+suscipit pulvinar. Nullam nec accumsan dolor.
+
+Nam aliquam orci id leo ornare tristique. Nam pretium suscipit justo
+vitae pretium. Vivamus tortor ligula, fringilla in pretium at, rutrum
+et risus. Fusce in purus arcu. Interdum et malesuada fames ac ante
+ipsum primis in faucibus. Suspendisse lobortis cursus imperdiet. Fusce
+imperdiet risus non erat eleifend condimentum. Sed venenatis augue eu
+enim tempus pharetra. [Maecenas](https://maecenas) in velit ut arcu
+iaculis facilisis ut a orci. Sed malesuada pulvinar aliquam. Quisque
+elementum iaculis felis, non [commodo turpis auctor](http://commo.do/~turpis/articles/auctor.html)
+at. Vestibulum at mollis neque.
+
+Sed ullamcorper risus luctus, placerat diam ac, eleifend purus. Cras
+laoreet, est vel pretium interdum, turpis odio interdum sem, eu
+consequat sem urna in leo. [Sed egestas massa orci](https://sed.eg/estas/blag/2017/02/18/mass-orci.html), id ultrices
+ligula accumsan vel. Phasellus sem orci, pretium at felis quis, tempus
+feugiat magna. Donec tortor leo, porttitor ac scelerisque vitae,
+vehicula et elit. Pellentesque in venenatis turpis. Lorem ipsum dolor
+sit amet, consectetur adipiscing elit. Integer dui quam, tempus et
+felis auctor, aliquet elementum magna.
diff --git a/tests/data/inline_link_style_00.md b/tests/data/inline_link_style_00.md
new file mode 100644
index 0000000..15e2d10
--- /dev/null
+++ b/tests/data/inline_link_style_00.md
@@ -0,0 +1,33 @@
+Mauris sit amet urna lacus. Sed id sodales urna. Phasellus accumsan
+sapien a pellentesque ultrices. Pellentesque in semper leo, quis
+ornare ipsum. Phasellus suscipit arcu ac ipsum tristique
+ultrices. [Aliquam erat][aliquam] volutpat. Interdum et malesuada
+fames ac ante ipsum primis in faucibus. [Proin aliquam][proin] est ut
+nulla placerat, vitae aliquet velit dictum. Sed quis justo eget sem
+suscipit pulvinar. Nullam nec accumsan dolor.
+
+[aliquam]: http://www.aliquam/erat/
+[proin]: http://pro.in/projects/aliquam
+
+Nam aliquam orci id leo ornare tristique. Nam pretium suscipit justo
+vitae pretium. Vivamus tortor ligula, fringilla in pretium at, rutrum
+et risus. Fusce in purus arcu. Interdum et malesuada fames ac ante
+ipsum primis in faucibus. Suspendisse lobortis cursus imperdiet. Fusce
+imperdiet risus non erat eleifend condimentum. Sed venenatis augue eu
+enim tempus pharetra. [Maecenas](https://maecenas) in velit ut arcu
+iaculis facilisis ut a orci. Sed malesuada pulvinar aliquam. Quisque
+elementum iaculis felis, non [commodo turpis auctor][commodo]
+at. Vestibulum at mollis neque.
+
+[commodo]: http://commo.do/~turpis/articles/auctor.html
+
+Sed ullamcorper risus luctus, placerat diam ac, eleifend purus. Cras
+laoreet, est vel pretium interdum, turpis odio interdum sem, eu
+consequat sem urna in leo. [Sed egestas massa orci][sed], id ultrices
+ligula accumsan vel. Phasellus sem orci, pretium at felis quis, tempus
+feugiat magna. Donec tortor leo, porttitor ac scelerisque vitae,
+vehicula et elit. Pellentesque in venenatis turpis. Lorem ipsum dolor
+sit amet, consectetur adipiscing elit. Integer dui quam, tempus et
+felis auctor, aliquet elementum magna.
+
+[sed]: https://sed.eg/estas/blag/2017/02/18/mass-orci.html
diff --git a/tests/test_mdl_style.py b/tests/test_mdl_style.py
index 487ff3a..07f9480 100644
--- a/tests/test_mdl_style.py
+++ b/tests/test_mdl_style.py
@@ -18,14 +18,52 @@
 #   along with markdown-link-style (see COPYING).  If not, see
 #   <http://www.gnu.org/licenses/>.
 
+from mistune import Renderer, Markdown
 from nose.tools import *
+from pkg_resources import resource_string
 
 from mdl_style import *
 
-class TestMdlStyle(object):
+
+def _get_data(f):
+    rs = resource_string(__name__, '/'.join(['data', f]))
+    return rs.decode()
+
+class TestLSRendererIL(object):
+    """Test class for mdl_style.LSRenderer inline link style.
+
+    """
+
+    def setup(self):
+        self.md = LSMarkdown(link_style='inline')
+
+    def test_autolink_00(self):
+        d = _get_data('autolink_00.md')
+        d_expected = _get_data('autolink_00-expected.md')
+        assert_equals(self.md(d), d_expected)
+
+
+    def test_link_footnote_to_inline_style_conversion_00(self):
+        d = _get_data('inline_link_style_00.md')
+        expected_result = _get_data('inline_link_style_00-expected.md')
+        assert_equal(self.md(d), expected_result)
+
+    def teardown(self):
+        pass
+
+
+class TestLSRendererFN(object):
+    """Test class for mdl_style.LSRenderer footnote link style.
+
+    """
 
     def setup(self):
-        print('running setup...')
+        self.md = LSMarkdown(link_style='footnote')
+
+    def test_link_inline_to_footnote_style_conversion_00(self):
+        d = _get_data('footnote_link_style_00.md')
+        expected_result = _get_data('footnote_link_style_00-expected.md')
+        assert_equal(self.md(d), d_expected)
 
     def teardown(self):
-        print('running teardown...')
+        pass