HarfBuzz text shaping engine
http://harfbuzz.github.io/
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70 lines
1.5 KiB
70 lines
1.5 KiB
#!/usr/bin/python |
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import sys, re, difflib, os |
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red_color = green_color = end_color = "" |
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if "--color" in sys.argv or os.isatty (sys.stdout.fileno ()): |
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if "--color" in sys.argv: |
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sys.argv.remove ("--color") |
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red_color = '\033[41;37;1m' |
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green_color = '\033[42;37;1m' |
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end_color = '\033[m' |
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def fancy_diff (l1, l2): |
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ss = [re.sub ('([A-Za-z0-9_]*)([^A-Za-z0-9_]?)', r'\1\n\2\n', l).splitlines (True) for l in (l1, l2)] |
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oo = ["",""] |
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st = [False, False] |
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for l in difflib.Differ().compare (*ss): |
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if l[0] == '?': |
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continue |
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if l[0] == ' ': |
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for i in range(2): |
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if st[i]: |
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oo[i] += end_color |
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st[i] = False |
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oo = [o + l[2:] for o in oo] |
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continue |
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if l[0] == '-': |
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if not st[0]: |
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oo[0] += red_color |
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st[0] = True |
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oo[0] += l[2:] |
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continue |
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if l[0] == '+': |
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if not st[1]: |
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oo[1] += green_color |
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st[1] = True |
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oo[1] += l[2:] |
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for i in range(2): |
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if st[i]: |
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oo[i] += end_color |
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st[i] = 0 |
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oo = [o.replace ('\n', '') for o in oo] |
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if oo[0] == oo[1]: |
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return [' ', oo[0], '\n'] |
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return ['-', oo[0], '\n', '+', oo[1], '\n'] |
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def open_file (f): |
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if f == '-': |
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return sys.stdin |
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return file (f) |
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if len (sys.argv) != 3: |
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print "Usage: %s [--color] FILE1 FILE2" % sys.argv[0] |
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sys.exit (1) |
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f1, f2 = (open_file (f) for f in sys.argv[1:3]) |
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for (l1,l2) in zip (f1, f2): |
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if l1 == l2: |
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sys.stdout.writelines ([" ", l1]) |
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continue |
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sys.stdout.writelines (fancy_diff (l1, l2)) |
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# Print out residues |
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for l in f1: |
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sys.stdout.writelines (["-", red_color, l1, end_color]) |
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for l in f1: |
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sys.stdout.writelines (["-", green_color, l1, end_color])
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