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Add an option to layout2layout to convert to a particular format

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This commit is contained in:
Guillaume Munch 2016-07-22 20:52:29 +01:00
parent 0a8b7f6a57
commit 77511ea1d5
1 changed files with 53 additions and 19 deletions
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72
lib/scripts/layout2layout.py
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@ -10,8 +10,9 @@
# This script will update a .layout file to current format
# The latest layout format is also defined in src/TextClass.cpp
currentFormat = 60
import os, re, string, sys
# Incremented to format 4, 6 April 2007, lasgouttes
# Introduction of generic "Provides" declaration
@ -208,12 +209,22 @@ import os, re, string, sys
# development/tools/updatelayouts.py script to update all
# layout files to the new format.
currentFormat = 60
import os, re, string, sys
import argparse
def usage(prog_name):
return ("Usage: %s inputfile outputfile\n" % prog_name +
"or %s <inputfile >outputfile" % prog_name)
# Provide support for both python 2 and 3
# (copied from lyx2lyx)
PY2 = sys.version_info[0] == 2
if PY2:
# argparse returns strings in the commandline encoding, we need to convert.
# sys.getdefaultencoding() would not always be correct, see
# http://legacy.python.org/dev/peps/pep-0383/
def cmd_arg(arg):
return arg.decode(sys.getfilesystemencoding())
else:
cmd_arg = str
# End of code to support for both python 2 and 3
def error(message):
@ -257,7 +268,7 @@ def addstring(s, l):
l.append(s)
def convert(lines):
def convert(lines, end_format):
" Convert to new format."
re_Comment = re.compile(r'^(\s*)#')
re_Counter = re.compile(r'\s*Counter\s*', re.IGNORECASE)
@ -404,14 +415,14 @@ def convert(lines):
if match:
formatline = i
format = int(match.group(4))
if format > 1 and format < currentFormat:
if format > 1 and format < end_format:
lines[i] = "Format %d" % (format + 1)
only_comment = 0
elif format == currentFormat:
elif format == end_format:
# nothing to do
return format
else:
error('Cannot convert file format %s to %s' % (format, currentFormat))
error('Cannot convert file format %s to %s' % (format, end_format))
else:
lines.insert(i, "Format 2")
only_comment = 0
@ -1140,27 +1151,50 @@ def convert(lines):
def main(argv):
args = {}
args["description"] = "Convert layout file <inputfile> to a newer format."
parser = argparse.ArgumentParser(**args)
parser.add_argument("-t", "--to", type=int, dest="format",
help=("destination layout format, default %i (latest)") % currentFormat)
parser.add_argument("input_file", nargs='?', type=cmd_arg, default=None,
help="input file (default stdin)")
parser.add_argument("output_file", nargs='?', type=cmd_arg, default=None,
help="output file (default stdout)")
options = parser.parse_args()
# Open files
if len(argv) == 1:
source = sys.stdin
output = sys.stdout
elif len(argv) == 3:
source = open(argv[1], 'rb')
output = open(argv[2], 'wb')
if options.input_file:
source = open(options.input_file, 'rb')
else:
error(usage(argv[0]))
source = sys.stdin
if options.output_file:
output = open(options.output_file, 'wb')
else:
output = sys.stdout
if options.format:
end_format = options.format
else:
end_format = currentFormat
if end_format > currentFormat:
error("Format %i does not exist" % end_format);
# Do the real work
lines = read(source)
format = 1
while (format < currentFormat):
format = convert(lines)
while (format < end_format):
format = convert(lines, end_format)
write(output, lines)
# Close files
if len(argv) == 3:
if options.input_file:
source.close()
if options.output_file:
output.close()
return 0