# This is the main file for the user preferences conversion system.
# There are two subsidiary files:
-# prefs2prefs_lfuns.py
-# prefs2prefs_prefs.py
+# prefs2prefs_lfuns.py
+# prefs2prefs_prefs.py
# The former is used to convert bind and ui files; the latter, to convert
# the preferences file. The converter functions are all in the subsidiary
# files.
# Utility functions, borrowed from layout2layout.py
def trim_bom(line):
- " Remove byte order mark."
- if line[0:3] == u"\357\273\277":
- return line[3:]
- else:
- return line
+ " Remove byte order mark."
+ if line[0:3] == u"\357\273\277":
+ return line[3:]
+ else:
+ return line
def read(source):
- " Read input file and strip lineendings."
- lines = source.read().splitlines() or ['']
- lines[0] = trim_bom(lines[0])
- return lines
+ " Read input file and strip lineendings."
+ lines = source.read().splitlines() or ['']
+ lines[0] = trim_bom(lines[0])
+ return lines
def write(output, lines):
- " Write output file with native lineendings."
- output.write(os.linesep.join(lines) + os.linesep)
+ " Write output file with native lineendings."
+ output.write(os.linesep.join(lines) + os.linesep)
# for use by find_format_lines
re_empty = re.compile(r'^\s*$')
def find_format_line(lines):
- '''
- Returns (bool, int), where int is number of the line the `Format'
- specification is on, or else the number of the first non-blank,
- non-comment line. The bool tells whether we found a format line.
- '''
- for i in range(len(lines)):
- l = lines[i]
- if re_comment.search(l) or re_empty.search(l):
- continue
- m = re_format.search(l)
- if m:
- return (True, i)
- # we're done when we have hit a non-comment, non-empty line
- break
- return (False, i)
+ '''
+ Returns (bool, int), where int is number of the line the `Format'
+ specification is on, or else the number of the first non-blank,
+ non-comment line. The bool tells whether we found a format line.
+ '''
+ for i in range(len(lines)):
+ l = lines[i]
+ if re_comment.search(l) or re_empty.search(l):
+ continue
+ m = re_format.search(l)
+ if m:
+ return (True, i)
+ # we're done when we have hit a non-comment, non-empty line
+ break
+ return (False, i)
# for use by get_format
re_format = re.compile(r'^Format\s+(\d+)\s*$')
def get_format(lines):
- " Gets format of current file and replaces the format line with a new one "
- (found, format_line) = find_format_line(lines)
- if not found:
- return 0
- line = lines[format_line]
- m = re_format.search(line)
- if not m:
- sys.stderr.write("Couldn't match format line!\n" + line + "\n")
- sys.exit(1)
- return int(m.group(1))
+ " Gets format of current file and replaces the format line with a new one "
+ (found, format_line) = find_format_line(lines)
+ if not found:
+ return 0
+ line = lines[format_line]
+ m = re_format.search(line)
+ if not m:
+ sys.stderr.write("Couldn't match format line!\n" + line + "\n")
+ sys.exit(1)
+ return int(m.group(1))
def update_format(lines):
- " Writes new format line "
- (found, format_line) = find_format_line(lines)
- if not found:
- lines[format_line:format_line] = ("Format 1", "")
- return
+ " Writes new format line "
+ (found, format_line) = find_format_line(lines)
+ if not found:
+ lines[format_line:format_line] = ("Format 1", "")
+ return
- line = lines[format_line]
- m = re_format.search(line)
- if not m:
- sys.stderr.write("Couldn't match format line!\n" + line + "\n")
- sys.exit(1)
- format = int(m.group(1))
- lines[format_line] = "Format " + str(format + 1)
+ line = lines[format_line]
+ m = re_format.search(line)
+ if not m:
+ sys.stderr.write("Couldn't match format line!\n" + line + "\n")
+ sys.exit(1)
+ format = int(m.group(1))
+ lines[format_line] = "Format " + str(format + 1)
def abort(msg):
- sys.stderr.write("\n%s\n" % (msg))
- sys.exit(10)
+ sys.stderr.write("\n%s\n" % (msg))
+ sys.exit(10)
#
###########################################################
def usage():
- print ("%s [-l] [-p] infile outfile" % sys.argv[0])
- print ("or: %s [-l] [-p] <infile >outfile" % sys.argv[0])
- print (" -l: convert LFUNs (bind and ui files)")
- print (" -p: convert preferences")
- print ("Note that exactly one of -l and -p is required.")
+ print ("%s [-l] [-p] infile outfile" % sys.argv[0])
+ print ("or: %s [-l] [-p] <infile >outfile" % sys.argv[0])
+ print (" -l: convert LFUNs (bind and ui files)")
+ print (" -p: convert preferences")
+ print ("Note that exactly one of -l and -p is required.")
def main(argv):
- try:
- (options, args) = getopt(sys.argv[1:], "lp")
- except:
- usage()
- abort("Unrecognized option")
-
- opened_files = False
- # Open files
- if len(args) == 0:
- source = sys.stdin
- output = sys.stdout
- elif len(args) == 2:
- source = io.open(args[0], 'r', encoding='utf_8', errors='surrogateescape')
- output = io.open(args[1], 'w', encoding='utf_8', newline='\n')
- opened_files = True
- else:
- usage()
- abort("Either zero or two arguments must be given.")
-
- conversions = False
-
- for (opt, param) in options:
- if opt == "-l":
- from prefs2prefs_lfuns import conversions
- elif opt == "-p":
- from prefs2prefs_prefs import conversions
-
- if not conversions:
- usage()
- abort("Neither -l nor -p given.")
- elif len(options) > 1:
- usage()
- abort("Only one of -l or -p should be given.")
-
- current_format = len(conversions)
- lines = read(source)
- format = get_format(lines)
-
- while format < current_format:
- target_format, convert = conversions[format]
- old_format = format
-
- # make sure the conversion list is sequential
- if int(old_format) + 1 != target_format:
- abort("Something is wrong with the conversion chain.")
-
- for c in convert:
- try:
- # first see if the routine will accept a list of lines
- c(lines)
- except:
- # if not, it wants individual lines
- for i in range(len(lines)):
- (update, newline) = c(lines[i])
- if update:
- lines[i] = newline
-
- update_format(lines)
- format = get_format(lines)
-
- # sanity check
- if int(old_format) + 1 != int(format):
- abort("Failed to convert to new format!")
-
- write(output, lines)
-
- # Close files
- if opened_files:
- source.close()
- output.close()
-
- return 0
+ try:
+ (options, args) = getopt(sys.argv[1:], "lp")
+ except:
+ usage()
+ abort("Unrecognized option")
+
+ opened_files = False
+ # Open files
+ if len(args) == 0:
+ source = sys.stdin
+ output = sys.stdout
+ elif len(args) == 2:
+ source = io.open(args[0], 'r', encoding='utf_8', errors='surrogateescape')
+ output = io.open(args[1], 'w', encoding='utf_8', newline='\n')
+ opened_files = True
+ else:
+ usage()
+ abort("Either zero or two arguments must be given.")
+
+ conversions = False
+
+ for (opt, param) in options:
+ if opt == "-l":
+ from prefs2prefs_lfuns import conversions
+ elif opt == "-p":
+ from prefs2prefs_prefs import conversions
+
+ if not conversions:
+ usage()
+ abort("Neither -l nor -p given.")
+ elif len(options) > 1:
+ usage()
+ abort("Only one of -l or -p should be given.")
+
+ current_format = len(conversions)
+ lines = read(source)
+ format = get_format(lines)
+
+ while format < current_format:
+ target_format, convert = conversions[format]
+ old_format = format
+
+ # make sure the conversion list is sequential
+ if int(old_format) + 1 != target_format:
+ abort("Something is wrong with the conversion chain.")
+
+ for c in convert:
+ try:
+ # first see if the routine will accept a list of lines
+ c(lines)
+ except:
+ # if not, it wants individual lines
+ for i in range(len(lines)):
+ (update, newline) = c(lines[i])
+ if update:
+ lines[i] = newline
+
+ update_format(lines)
+ format = get_format(lines)
+
+ # sanity check
+ if int(old_format) + 1 != int(format):
+ abort("Failed to convert to new format!")
+
+ write(output, lines)
+
+ # Close files
+ if opened_files:
+ source.close()
+ output.close()
+
+ return 0
if __name__ == "__main__":
- main(sys.argv)
+ main(sys.argv)
projects / features.git / commitdiff