Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/make_ctype.py @ 71285:8bc9dbc61ba6 3.2

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Issue #12326: document the recommended idiom for checking sys.platform on Unix systems. Also, point to the various alternatives.
author Antoine Pitrou <solipsis@pitrou.net>
date Sat, 09 Jul 2011 15:54:23 +0200
parents 4a72fc5dfb79
children 65d5ecefd50d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 """Script that generates the ctype.h-replacement in stringobject.c."""
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2
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3 NAMES = ("LOWER", "UPPER", "ALPHA", "DIGIT", "XDIGIT", "ALNUM", "SPACE")
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4
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5 print("""
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6 #define FLAG_LOWER 0x01
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7 #define FLAG_UPPER 0x02
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8 #define FLAG_ALPHA (FLAG_LOWER|FLAG_UPPER)
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9 #define FLAG_DIGIT 0x04
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10 #define FLAG_ALNUM (FLAG_ALPHA|FLAG_DIGIT)
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11 #define FLAG_SPACE 0x08
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12 #define FLAG_XDIGIT 0x10
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13
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14 static unsigned int ctype_table[256] = {""")
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15
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16 for i in range(128):
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17 c = chr(i)
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18 flags = []
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19 for name in NAMES:
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20 if name in ("ALPHA", "ALNUM"):
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21 continue
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22 if name == "XDIGIT":
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23 method = lambda: c.isdigit() or c.upper() in "ABCDEF"
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24 else:
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25 method = getattr(c, "is" + name.lower())
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26 if method():
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27 flags.append("FLAG_" + name)
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28 rc = repr(c)
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29 if c == '\v':
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30 rc = "'\\v'"
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31 elif c == '\f':
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32 rc = "'\\f'"
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33 if not flags:
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34 print(" 0, /* 0x%x %s */" % (i, rc))
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35 else:
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36 print(" %s, /* 0x%x %s */" % ("|".join(flags), i, rc))
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37
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38 for i in range(128, 256, 16):
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39 print(" %s," % ", ".join(16*["0"]))
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40
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41 print("};")
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42 print("")
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43
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44 for name in NAMES:
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45 print("#define IS%s(c) (ctype_table[Py_CHARMASK(c)] & FLAG_%s)" %
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46 (name, name))
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47
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48 print("")
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49
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50 for name in NAMES:
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51 name = "is" + name.lower()
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52 print("#undef %s" % name)
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53 print("#define %s(c) undefined_%s(c)" % (name, name))
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54
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55 print("""
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56 static unsigned char ctype_tolower[256] = {""")
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57
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58 for i in range(0, 256, 8):
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59 values = []
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60 for i in range(i, i+8):
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61 if i < 128:
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62 c = chr(i)
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63 if c.isupper():
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64 i = ord(c.lower())
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65 values.append("0x%02x" % i)
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66 print(" %s," % ", ".join(values))
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67
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68 print("};")
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69
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70 print("""
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71 static unsigned char ctype_toupper[256] = {""")
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72
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73 for i in range(0, 256, 8):
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74 values = []
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75 for i in range(i, i+8):
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76 if i < 128:
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77 c = chr(i)
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78 if c.islower():
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79 i = ord(c.upper())
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80 values.append("0x%02x" % i)
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81 print(" %s," % ", ".join(values))
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82
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83 print("};")
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84
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85 print("""
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86 #define TOLOWER(c) (ctype_tolower[Py_CHARMASK(c)])
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87 #define TOUPPER(c) (ctype_toupper[Py_CHARMASK(c)])
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88
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89 #undef tolower
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90 #define tolower(c) undefined_tolower(c)
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91 #undef toupper
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92 #define toupper(c) undefined_toupper(c)
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93 """)