def getVersion():
""" determine the LilyPond version of the current document """
match = re.search(r'\\version\s*"(\d+)(?:\.(\d+)(?:\.(\d+))?)?',
editor.text())
if match:
return tuple(int(s or "0") for s in match.groups())
else:
return None
def convertLy():
""" Run convert-ly on the current document """
global version
docVersion = getVersion()
if not docVersion:
sorry(_("Can't determine the LilyPond version of the current document."
" Please add a \\version statement with the correct version."))
elif not version:
sorry(_("Can't determine the version of LilyPond. "
"Please check your LilyPond installation."))
elif docVersion >= version:
sorry(_("This LilyPond document is already up-to-date."))
else:
# Ok, let's run convert-ly.
# We add the from-version. Only in that case convert-ly wants to
# read from stdin.
convert_ly = config("commands").get("convert-ly", "convert-ly")
try:
out, err = Popen((convert_ly, "-f", "%d.%d.%d" % docVersion, "-"),
stdin=PIPE, stdout=PIPE, stderr=PIPE
).communicate(editor.text().encode('utf8'))
if out:
editor.setText(u"%s\n\n%%{\n%s\n%%}\n" %
(out.decode('utf8'), err.decode('utf8')))
info(_(
"The document has been processed with convert-ly. You'll find "
"the messages of convert-ly in a comment block at the end. "
"You still may have to edit some parts manually."), timeout=10)
else:
msg = err.decode('utf8').replace('\n', '<br>')
info(_(
"The document has been processed with convert-ly, but "
"remained unchanged. This is the message given by "
"convert-ly: %s") % "<br><br>%s" % msg, timeout=10)
except OSError, e:
error(_("Could not start convert-ly: %s") % e)
