Merge branch 'master' into authors

patacrep/encoding.py

@@ -16,7 +16,8 @@ def open_read(filename, mode='r', encoding=None):
     If `encoding` is set, use it as the encoding (do not guess).
     """
     if encoding is None:
-        fileencoding = chardet.detect(open(filename, 'rb').read())['encoding']
+        with open(filename, 'rb') as file:
+            fileencoding = chardet.detect(file.read())['encoding']
     else:
         fileencoding = encoding
 

patacrep/songs/__init__.py

@@ -128,7 +128,7 @@ class Song:
         self.titles = []
         self.data = {}
         self.cached = None
-        self.parse(config)
+        self._parse(config)
 
         # Post processing of data
         self.datadir = datadir
@@ -165,19 +165,19 @@ class Song:
     def __repr__(self):
         return repr((self.titles, self.data, self.fullpath))
 
-    def render(self, output, output_format):
+    def render(self, output_format, output=None, *args, **kwargs):
         """Return the code rendering this song.
 
         Arguments:
-        - output: Name of the output file.
         - output_format: Format of the output file (latex, chordpro...)
+        - output: Name of the output file, or `None` if irrelevant.
         """
         method = "render_{}".format(output_format)
         if hasattr(self, method):
-            return getattr(self, method)(output)
+            return getattr(self, method)(output, *args, **kwargs)
         raise NotImplementedError()
 
-    def parse(self, config): # pylint: disable=no-self-use
+    def _parse(self, config): # pylint: disable=no-self-use
         """Parse song.
 
         It set the following attributes:
@@ -194,47 +194,61 @@ class Song:
         """
         raise NotImplementedError()
 
-def unprefixed_title(title, prefixes):
-    """Remove the first prefix of the list in the beginning of title (if any).
+    def get_datadirs(self, subdir=None):
+        """Return an iterator of existing datadirs (with eventually a subdir)
         """
-    for prefix in prefixes:
-        match = re.compile(r"^(%s)\b\s*(.*)$" % prefix, re.LOCALE).match(title)
-        if match:
-            return match.group(2)
-    return title
+        for directory in self.config['datadir']:
+            fullpath = os.path.join(directory, subdir)
+            if os.path.isdir(fullpath):
+                yield fullpath
 
-def search_image(image, chordprofile, config):
-    """Return the file name of an image, so that LaTeX will find it.
+    def search_file(self, filename, extensions=None, directories=None):
+        """Search for a file name.
 
-    :param str image: The name, as provided in the chordpro file.
-    :param str chordprofile: The name of the file including this image.
-    :param dict config: Songbook configuration dictionary.
+        :param str filename: The name, as provided in the chordpro file (with or without extension).
+        :param list extensions: Possible extensions (with '.'). Default is no extension.
+        :param iterator directories: Other directories where to search for the file
+                                The directory where the Song file is stored is added to the list.
 
-    The image can be:
+        Returns None if nothing found.
 
-    - in the same directory as the including song file;
-    - in the same directory as the main LaTeX file;
-    - in some of the `DATADIR/img` directories.
-
-    If image is not found, the `image` argument is returned.
+        This function can also be used as a preprocessor for a renderer: for
+        instance, it can compile a file, place it in a temporary folder, and
+        return the path to the compiled file.
         """
-    # Image is in the same folder as its song
-    texdir = os.path.dirname(chordprofile)
-    if os.path.exists(os.path.join(texdir, image)):
-        return os.path.join(texdir, image)
-
-    # Image is in the same directory as the main tex file
-    rootdir = os.path.dirname(os.path.join(
-        os.getcwd(),
-        config['filename'],
-        ))
-    if os.path.exists(os.path.join(rootdir, image)):
-        return image
+        if extensions is None:
+            extensions = ['']
+        if directories is None:
+            directories = self.config['datadir']
+
+        songdir = os.path.dirname(self.fullpath)
+
+        for directory in [songdir] + list(directories):
+            for extension in extensions:
+                fullpath = os.path.join(directory, filename + extension)
+                if os.path.isfile(fullpath):
+                    return os.path.abspath(fullpath)
+        return None
+
+    def search_image(self, filename, none_if_not_found=False):
+        """Search for an image file"""
+        filepath = self.search_file(
+            filename,
+            ['', '.jpg', '.png'],
+            self.get_datadirs('img'),
+            )
+        return filepath if none_if_not_found or filepath else filename
 
-    # Image is in a datadir
-    for directory in config['datadir']:
-        if os.path.exists(os.path.join(directory, 'img', image)):
-            return os.path.join(directory, 'img', image)
+    def search_partition(self, filename, none_if_not_found=False):
+        """Search for a lilypond file"""
+        filepath = self.search_file(filename, ['', '.ly'])
+        return filepath if none_if_not_found or filepath else filename
 
-    # Could not find image
-    return image
+def unprefixed_title(title, prefixes):
+    """Remove the first prefix of the list in the beginning of title (if any).
+    """
+    for prefix in prefixes:
+        match = re.compile(r"^(%s)\b\s*(.*)$" % prefix, re.LOCALE).match(title)
+        if match:
+            return match.group(2)
+    return title

patacrep/songs/chordpro/__init__.py

@@ -5,7 +5,7 @@ import pkg_resources
 import os
 
 from patacrep import encoding, files
-from patacrep.songs import Song, search_image
+from patacrep.songs import Song
 from patacrep.songs.chordpro.syntax import parse_song
 from patacrep.templates import Renderer
 
@@ -14,9 +14,24 @@ class ChordproSong(Song):
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
-        self.jinjaenv = None
 
-    def parse(self, config):
+    @staticmethod
+    def iter_template_paths(templatedirs, output_format):
+        """Iterate over paths in which templates are to be searched.
+
+        :param iterator templatedirs: Iterators of additional directories (the
+            default hard-coded template directory is returned last).
+        :param str output_format: Song output format, which is appended to
+            each directory.
+        """
+        for directory in templatedirs:
+            yield os.path.join(directory, output_format)
+        yield os.path.join(
+            os.path.abspath(pkg_resources.resource_filename(__name__, 'data')),
+            output_format,
+            )
+
+    def _parse(self, config):
         """Parse content, and return the dictionary of song data."""
         with encoding.open_read(self.fullpath, encoding=self.encoding) as song:
             song = parse_song(song.read(), self.fullpath)
@@ -28,42 +43,39 @@ class ChordproSong(Song):
             'song': song,
             }
 
-    def render(self, output, output_format):
+    def render(self, output_format, output=None, template="song", templatedirs=None): # pylint: disable=arguments-differ
+        if templatedirs is None:
+            templatedirs = []
+
         context = {
             'language': self.languages[0],
-            "path": files.relpath(self.fullpath, os.path.dirname(output)),
             "titles": self.titles,
             "authors": self.authors,
             "metadata": self.data,
             "render": self._render_ast,
             "config": self.config,
+            "content": self.cached['song'].content,
             }
-        self.jinjaenv = Environment(loader=FileSystemLoader(os.path.join(
-            os.path.abspath(pkg_resources.resource_filename(__name__, 'data')),
-            output_format,
-            )))
-        self.jinjaenv.filters['search_image'] = search_image
-        return self._render_ast(
-            context,
-            self.cached['song'].content,
-            template="song",
-            )
 
-    @contextfunction
-    def _render_ast(self, context, content, template=None):
-        """Render ``content``."""
-        if isinstance(context, dict):
-            context['content'] = content
-        else:
-            context.vars['content'] = content
-        if template is None:
-            template = content.template()
+        jinjaenv = Environment(loader=FileSystemLoader(
+            self.iter_template_paths(templatedirs, output_format)
+            ))
+        jinjaenv.filters['search_image'] = self.search_image
+        jinjaenv.filters['search_partition'] = self.search_partition
+
         return Renderer(
             template=template,
             encoding='utf8',
-            jinjaenv=self.jinjaenv,
+            jinjaenv=jinjaenv,
             ).template.render(context)
 
+    @staticmethod
+    @contextfunction
+    def _render_ast(context, content):
+        """Render ``content``."""
+        context.vars['content'] = content
+        return context.environment.get_template(content.template()).render(context)
+
 SONG_PARSERS = {
     'sgc': ChordproSong,
     }

patacrep/songs/chordpro/ast.py

@@ -39,6 +39,10 @@ class OrderedLifoDict:
     def __getitem__(self, key):
         return self._values[key]
 
+    def get(self, key, default=None):
+        """Same as :meth:`dict.get`."""
+        return self._values.get(key, default)
+
 def _indent(string):
     """Return and indented version of argument."""
     return "\n".join(["  {}".format(line) for line in string.split('\n')])
@@ -149,6 +153,11 @@ class Chord(AST):
         # pylint: disable=too-many-arguments
         self.chord = chord
 
+    @property
+    def pretty_chord(self):
+        """Return the chord with nicer (utf8) alteration"""
+        return self.chord.replace('b', '♭').replace('#', '♯')
+
 class Verse(AST):
     """A verse (or bridge, or chorus)"""
     _template = "verse"
@@ -337,6 +346,11 @@ class Define(Directive):
         self.fingers = fingers # Can be None
         super().__init__("define", None)
 
+    @property
+    def pretty_key(self):
+        """Return the key with nicer (utf8) alteration"""
+        return self.key.chord.replace('&', '♭').replace('#', '♯')
+
     def __str__(self):
         return None
 

patacrep/songs/chordpro/data/chordpro/content_image

@@ -1 +1 @@
-{image: (( content.argument ))}
+{image: (( content.argument|search_image ))}

patacrep/songs/chordpro/data/chordpro/content_newline

@@ -1,2 +1 @@
 
-

patacrep/songs/chordpro/data/chordpro/content_partition

@@ -1 +1 @@
-{partition: ((content.argument))}
+{partition: ((content.argument|search_partition))}

patacrep/songs/chordpro/data/chordpro/content_verse

@@ -1,5 +1,11 @@
+(*- if content.type != 'verse' -*)
 {start_of_(( content.type ))}
   (* for line in content.lines *)
     (( render(line) ))
   (* endfor *)
 {end_of_(( content.type ))}
+(* else -*)
+  (*- for line in content.lines -*)
+    (( render(line) ))
+  (* endfor -*)
+(*- endif -*)

patacrep/songs/chordpro/data/chordpro/song

@@ -1,35 +1,3 @@
-(* if language is defined -*)
-  {language: (( language ))}
-(* endif *)
-(* if metadata.columns is defined -*)
-  {columns: (( metadata.columns ))}
-(* endif *)
-(* if metadata.capo is defined -*)
-  {capo: (( metadata.capo ))}
-(* endif *)
+(* include 'song_header' *)
 
-(*- for title in titles -*)
-  {title: (( title ))}
-(* endfor -*)
-
-(*- for author in authors -*)
-  {artist: (( author[1] )) (( author[0] ))}
-(* endfor *)
-
-(*- for key in ['album', 'copyright', 'cov', 'tag'] *)
-  (* if key in metadata -*)
-    {(( key )): (( metadata[key] ))}
-  (* endif *)
-(* endfor *)
-
-(*- for key in metadata.keys -*)
-  {key: (( key.keyword )): (( key.argument ))}
-(* endfor *)
-
-(*- for chord in metadata['define'] *)
-  ((- render(chord) ))
-(* endfor *)
-
-(* for item in content -*)
-    (( render(item) ))
-(* endfor *)
+(* include 'song_body' *)

patacrep/songs/chordpro/data/chordpro/song_body

@@ -0,0 +1,3 @@
+(* for item in content -*)
+    (( render(item) ))
+(* endfor *)

patacrep/songs/chordpro/data/chordpro/song_header

@@ -0,0 +1,34 @@
+(* if language is defined -*)
+  {language: (( language ))}
+(* endif *)
+(* if metadata.columns is defined -*)
+  {columns: (( metadata.columns ))}
+(* endif *)
+(* if metadata.capo is defined -*)
+  {capo: (( metadata.capo ))}
+(* endif *)
+
+(*- for title in titles -*)
+  {title: (( title ))}
+(* endfor -*)
+
+(*- for author in authors -*)
+  {artist: (( author[1] )) (( author[0] ))}
+(* endfor *)
+
+(*- for key in ['album', 'copyright', 'tag'] *)
+  (* if key in metadata -*)
+    {(( key )): (( metadata[key] ))}
+  (* endif *)
+(* endfor *)
+(* if 'cov' in metadata -*)
+  {(( 'cov' )): (( metadata['cov'].argument|search_image ))}
+(* endif *)
+
+(*- for key in metadata.keys -*)
+  {key: (( key.keyword )): (( key.argument ))}
+(* endfor *)
+
+(*- for chord in metadata['define'] *)
+  ((- render(chord) ))
+(* endfor *)

patacrep/songs/chordpro/data/html/content_chord

@@ -0,0 +1 @@
+((- content.pretty_chord -))

patacrep/songs/chordpro/data/html/content_chordlist

@@ -0,0 +1,6 @@
+<span class="chord">
+    (*- for chord in content.chords -*)
+        (* if not loop.first *) (* endif -*)
+        (( render(chord) -))
+    (* endfor -*)
+</span>

patacrep/songs/chordpro/data/html/content_comment

@@ -0,0 +1 @@
+<div class="comment">(( content.argument ))</div>

patacrep/songs/chordpro/data/html/content_define

@@ -0,0 +1,31 @@
+<div(( " " -))
+    class="chord-diagram"(( " " -))
+    data-shift="
+      (*- if content.basefret -*)
+        ((content.basefret))
+      (*- else -*)
+        0
+      (*- endif *)
+    ((- '" ' -))
+    data-frets="
+      (*- for fret in content.frets -*)
+       (* if fret is none -*)
+         x
+       (*- else -*)
+         (( fret -))
+       (* endif -*)
+      (* endfor -*)
+    ((- '" ' -))
+    (* if content.fingers -*)
+      data-fingers="
+      (*- for finger in content.fingers -*)
+       (* if finger is none -*)
+         -
+       (*- else -*)
+         (( finger -))
+       (* endif -*)
+      (* endfor -*)
+      ((- '" ' -))
+    (* endif -*)
+    data-name="(( content.pretty_key ))"(( " " -))
+></div>

patacrep/songs/chordpro/data/html/content_define_list

@@ -0,0 +1,3 @@
+(*- for chord in metadata['define'] *)
+  ((- render(chord) ))
+(* endfor *)

patacrep/songs/chordpro/data/html/content_error

@@ -0,0 +1,3 @@
+
+ERROR : Template not found for "(( content.__class__.__name__ ))". See the logs for details.
+

patacrep/songs/chordpro/data/html/content_guitar_comment

@@ -0,0 +1 @@
+<div class="guitar_comment">(( content.argument ))</div>

patacrep/songs/chordpro/data/html/content_image

@@ -0,0 +1 @@
+<img src="(( content.argument|search_image ))">

patacrep/songs/chordpro/data/html/content_line

@@ -0,0 +1,3 @@
+(* for item in content.line -*)
+    (( render(item) ))
+(*- endfor *)

patacrep/songs/chordpro/data/html/content_metadata_cover

@@ -0,0 +1,3 @@
+(* if 'cov' in metadata -*)
+  <img src="(( metadata['cov'].argument|search_image ))"><br>
+(* endif *)

patacrep/songs/chordpro/data/html/content_newline

@@ -0,0 +1 @@
+

patacrep/songs/chordpro/data/html/content_partition

@@ -0,0 +1 @@
+<a class="song-partition" href="(( content.argument|search_partition ))">((content.argument))</a>

patacrep/songs/chordpro/data/html/content_space

@@ -0,0 +1 @@
+ 

patacrep/songs/chordpro/data/html/content_tablature

@@ -0,0 +1,5 @@
+<pre class="tablature">
+  (* for content in content.content *)
+    ((- content ))
+  (* endfor *)
+</pre>

patacrep/songs/chordpro/data/html/content_verse

@@ -0,0 +1,6 @@
+<p class="(( content.type ))">
+  (*- for line in content.lines -*)
+    (* if not loop.first *)<br>(* endif -*)
+    (( render(line) ))
+  (* endfor -*)
+</p>

patacrep/songs/chordpro/data/html/content_word

@@ -0,0 +1 @@
+(( content.value ))

patacrep/songs/chordpro/data/html/song

@@ -0,0 +1,5 @@
+(* include 'song_header' *)
+
+<div class="song_content">
+(* include 'song_body' *)
+</div>

patacrep/songs/chordpro/data/html/song_body

@@ -0,0 +1,3 @@
+(* for item in content -*)
+    (( render(item) ))
+(* endfor *)

patacrep/songs/chordpro/data/html/song_header

@@ -0,0 +1,30 @@
+(*- for title in titles -*)
+  (* if loop.first *)
+    <h1 class="song-title">(( title ))</h1>
+  (* else *)
+    <h2 class="song-title">(( title ))</h2>
+  (* endif *)
+(* endfor -*)
+
+(*- for author in authors -*)
+  <h2 class="song-artist">(( author[1] )) (( author[0] ))</h2>
+(* endfor *)
+
+
+(*- for key in ['album', 'copyright', 'tag', 'columns', 'capo'] *)
+  (* if key in metadata -*)
+    <span class="song-(( key ))">(( key|capitalize )): (( metadata[key] ))</span><br/>
+  (* endif *)
+(* endfor *)
+
+(* if language is defined -*)
+  <span class="song-language">Language: (( language ))</span><br>
+(* endif *)
+
+(* include 'content_metadata_cover' *)
+
+(*- for key in metadata.keys -*)
+  {key: (( key.keyword )): (( key.argument ))}
+(* endfor *)
+
+(* include 'content_define_list' *)

patacrep/songs/chordpro/data/latex/content_define

@@ -1,4 +1,8 @@
+(*- if content.frets|length == 4 -*)
+\utab{
+(*- else -*)
 \gtab{
+(*- endif -*)
     ((- render(content.key) -))
 }{
     (*- if content.basefret -*)

patacrep/songs/chordpro/data/latex/content_image

@@ -1 +1 @@
-\image{(( content.argument|search_image(path, config) ))}
+\image{(( content.argument|search_image ))}

patacrep/songs/chordpro/data/latex/content_partition

@@ -1 +1 @@
-\lilypond{ ((- content.argument|search_image(path, config) -)) }
+\lilypond{ ((- content.argument|search_partition -)) }

patacrep/songs/chordpro/data/latex/song

@@ -28,7 +28,7 @@
   (* endif *)
   (* endfor *)
   (* if 'cov' in metadata *)
-  cov={(( metadata["cov"].argument|search_image(path, config) ))},
+  cov={(( metadata["cov"].argument|search_image ))},
   (* endif *)
   (* for key in metadata.keys *)
   (( key.keyword ))={(( key.argument ))},
@@ -43,8 +43,6 @@
   (( render(chord) ))
 (* endfor *)
 
-(* for item in content -*)
-    (( render(item) ))
-(* endfor *)
+(* include 'song_body' *)
 
 \endsong

patacrep/songs/chordpro/data/latex/song_body

@@ -0,0 +1,3 @@
+(* for item in content -*)
+    (( render(item) ))
+(* endfor *)

patacrep/songs/latex/__init__.py

@@ -14,7 +14,7 @@ from patacrep.songs import Song
 class LatexSong(Song):
     """LaTeX song parser."""
 
-    def parse(self, __config):
+    def _parse(self, __config):
         """Parse content, and return the dictinory of song data."""
         with encoding.open_read(self.fullpath, encoding=self.encoding) as song:
             self.data = parse_song(song.read(), self.fullpath)
@@ -30,6 +30,8 @@ class LatexSong(Song):
 
     def render_latex(self, output):
         """Return the code rendering the song."""
+        if output is None:
+            raise ValueError(output)
         path = files.path2posix(files.relpath(
             self.fullpath,
             os.path.dirname(output)

test/test_chordpro/01.sgc

@@ -1,5 +1,3 @@
 {language: english}
 
-{start_of_verse}
 A verse line
-{end_of_verse}

test/test_chordpro/08.sgc

@@ -1,7 +1,4 @@
 {language: english}
 
 
-
-{start_of_verse}
 A lot of new lines
-{end_of_verse}

test/test_chordpro/09.sgc

@@ -2,7 +2,4 @@
 {title: and a directive}
 
 
-
-{start_of_verse}
 A lot of new lines
-{end_of_verse}

test/test_chordpro/10.sgc

@@ -1,5 +1,3 @@
 {language: english}
 
-{start_of_verse}
 A line[A] with a chord
-{end_of_verse}

test/test_chordpro/11.sgc

@@ -1,5 +1,3 @@
 {language: english}
 
-{start_of_verse}
 A line ending with a chord[A]
-{end_of_verse}

test/test_chordpro/12.sgc

@@ -1,5 +1,3 @@
 {language: english}
 
-{start_of_verse}
 [A]A line starting with a chord
-{end_of_verse}

test/test_chordpro/21.sgc

@@ -1,5 +1,3 @@
 {language: english}
 
-{start_of_verse}
 A verse line
-{end_of_verse}

test/test_chordpro/28.sgc

@@ -1,7 +1,4 @@
 {language: english}
 
 
-
-{start_of_verse}
 A lot of new lines
-{end_of_verse}

test/test_chordpro/29.sgc

@@ -2,7 +2,4 @@
 {title: and a directive}
 
 
-
-{start_of_verse}
 A lot of new lines
-{end_of_verse}

test/test_chordpro/chords.sgc

@@ -1,6 +1,5 @@
 {language: english}
 
-{start_of_verse}
 [A]Simple
 [Bb]Bémol
 [C#]Dièse
@@ -16,4 +15,3 @@
 [Ab B#/A]Plusieurs notes à la suite
 [E5/A*]Avec une étoile
 [B#+8]Avec un plus
-{end_of_verse}

test/test_chordpro/greensleeves.sgc

@@ -8,16 +8,12 @@
 {cov: traditionnel}
 
 
-
 {partition: greensleeves.ly}
 
-
-{start_of_verse}
 A[Am]las, my love, ye [G]do me wrong
 To [Am]cast me oft dis[E]curteously
 And [Am]I have loved [G]you so long
 De[Am]lighting [E]in your [Am]companie
-{end_of_verse}
 
 
 {start_of_chorus}
@@ -28,33 +24,25 @@
 {end_of_chorus}
 
 
-{start_of_verse}
 I [Am]have been ready [G]at your hand
 To [Am]grant what ever [E]you would crave
 I [Am]have both waged [G]life and land
 Your [Am]love and [E]good will [Am]for to have
-{end_of_verse}
 
 
-{start_of_verse}
 I [Am]bought thee kerchers [G]to thy head
 That [Am]were wrought fine and [E]gallantly
 I [Am]kept thee both at [G]boord and bed
 Which [Am]cost my [E]purse well [Am]favouredly
-{end_of_verse}
 
 
-{start_of_verse}
 I [Am]bought thee peticotes [G]of the best
 The [Am]cloth so fine as [E]fine might be
 I [Am]gave thee jewels [G]for thy chest
 And [Am]all this [E]cost I [Am]spent on thee
-{end_of_verse}
 
 
-{start_of_verse}
 Thy [Am]smock of silke, both [G]faire and white
 With [Am]gold embrodered [E]gorgeously
 Thy [Am]peticote of [G]sendall right
 And [Am]this I [E]bought thee [Am]gladly
-{end_of_verse}

test/test_chordpro/invalid_chord.sgc

@@ -1,5 +1,3 @@
 {language: english}
 
-{start_of_verse}
 This is  invalid.
-{end_of_verse}

test/test_chordpro/test_parser.py

@@ -16,22 +16,15 @@ LANGUAGES = {
     'sgc': 'chordpro',
 }
 
-class TestParsingRendering(unittest.TestCase):
-    """Test parsing and rendering"""
+class FileTestMeta(type):
+    """Metaclass that creates on-the-fly test function according to files.
 
-    maxDiff = None
+    See the :class:`FileTest` documentation for more information.
+    """
 
-    def test_all(self):
-        """Test of chorpro parser, and several renderers.
+    def __init__(cls, name, bases, nmspc):
+        super().__init__(name, bases, nmspc)
 
-        For any given `foo.source`, it is parsed as a chordpro file, and
-        should be rendered as `foo.sgc` with the chordpro renderer, and
-        `foo.tex` with the latex renderer.
-        """
-        config = DEFAULT_CONFIG.copy()
-        config.update({
-            'encoding': 'utf8',
-            })
         for source in sorted(glob.glob(os.path.join(
                 os.path.dirname(__file__),
                 '*.source',
@@ -41,15 +34,47 @@ class TestParsingRendering(unittest.TestCase):
                 destname = "{}.{}".format(base, dest)
                 if not os.path.exists(destname):
                     continue
+                setattr(
+                    cls,
+                    "test_{}_{}".format(os.path.basename(base), dest),
+                    cls._create_test(base, dest),
+                    )
+
+    @staticmethod
+    def _create_test(base, dest):
+        """Return a function testing that `base` compilation in `dest` format.
+        """
+
+        def test_parse_render(self):
+            """Test that `base` is correctly parsed and rendered."""
+            if base is None or dest is None:
+                return
+            destname = "{}.{}".format(base, dest)
             with open(destname, 'r', encoding='utf8') as expectfile:
                 chordproname = "{}.source".format(base)
-                    config['filename'] = chordproname
                 with disable_logging():
-                        with self.subTest(base=os.path.basename(base), format=dest):
                     self.assertMultiLineEqual(
-                                ChordproSong(None, chordproname, config).render(
+                        ChordproSong(None, chordproname, DEFAULT_CONFIG).render(
                             output=chordproname,
                             output_format=LANGUAGES[dest],
                             ).strip(),
                         expectfile.read().strip(),
                         )
+
+        test_parse_render.__doc__ = (
+            "Test that '{base}' is correctly parsed and rendererd into '{format}' format."
+            ).format(base=os.path.basename(base), format=dest)
+        return test_parse_render
+
+class FileTest(unittest.TestCase, metaclass=FileTestMeta):
+    """Test of chorpro parser, and several renderers.
+
+    For any given `foo.source`, it is parsed as a chordpro file, and should be
+    rendered as `foo.sgc` with the chordpro renderer, and `foo.tex` with the
+    latex renderer.
+
+    This class does nothing by itself, but its metaclass populates it with test
+    methods testing parser and renderers.
+    """
+
+    maxDiff = None

test/test_chordpro/ukulelechords.sgc

@@ -0,0 +1,5 @@
+{language: english}
+{define: G frets 0 2 3 2}
+{define: D7 frets 2 2 2 3 fingers 1 1 1 2}
+{define: G frets 3 2 0 0 0 3}
+{define: A#+2 base-fret 7 frets 0 1 3 3 x x fingers - 1 2 3 - -}

test/test_chordpro/ukulelechords.source

@@ -0,0 +1,4 @@
+{define: G frets 0 2 3 2}
+{define: D7 frets 2 2 2 3 fingers 1 1 1 2}
+{define: G frets 3 2 0 0 0 3}
+{define: A#+2 base-fret 7 frets 0 1 3 3 x x fingers - 1 2 3 - -}

test/test_chordpro/ukulelechords.tex

@@ -0,0 +1,14 @@
+\selectlanguage{english}
+
+\beginsong{}[
+  by={
+  },
+]
+
+\utab{G}{0232}
+\utab{D7}{2223:1112}
+\gtab{G}{320003}
+\gtab{A#+2}{7:0133XX:012300}
+
+
+\endsong