/[pcre]/code/trunk/maint/GenerateUtt.py
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Contents of /code/trunk/maint/GenerateUtt.py

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Revision 517 - (show annotations)
Wed May 5 10:44:20 2010 UTC (5 years, 2 months ago) by ph10
File MIME type: text/x-python
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Error occurred while calculating annotation data.
Add new special properties Xan, Xps, Xsp, Xwd to help with \w etc.
1 #! /usr/bin/python
2
3 # Generate utt tables.
4
5 # The source file pcre_tables.c contains (amongst other things), a table that
6 # is indexed by script name. In order to reduce the number of relocations when
7 # loading the library, the names are held as a single large string, with
8 # offsets in the table. This is tedious to maintain by hand. Therefore, this
9 # script is used to generate the table. The output is sent to stdout.
10
11 # Modified by PH 17-March-2009 to generate the more verbose form that works
12 # for UTF-support in EBCDIC as well as ASCII environments.
13 # Modified by PH 01-March-2010 to add new scripts from Unicode 5.2.0.
14 # Modified by PH 04-May-2010 to add new "X.." special categories.
15
16 script_names = ['Arabic', 'Armenian', 'Bengali', 'Bopomofo', 'Braille', 'Buginese', 'Buhid', 'Canadian_Aboriginal', \
17 'Cherokee', 'Common', 'Coptic', 'Cypriot', 'Cyrillic', 'Deseret', 'Devanagari', 'Ethiopic', 'Georgian', \
18 'Glagolitic', 'Gothic', 'Greek', 'Gujarati', 'Gurmukhi', 'Han', 'Hangul', 'Hanunoo', 'Hebrew', 'Hiragana', \
19 'Inherited', 'Kannada', 'Katakana', 'Kharoshthi', 'Khmer', 'Lao', 'Latin', 'Limbu', 'Linear_B', 'Malayalam', \
20 'Mongolian', 'Myanmar', 'New_Tai_Lue', 'Ogham', 'Old_Italic', 'Old_Persian', 'Oriya', 'Osmanya', 'Runic', \
21 'Shavian', 'Sinhala', 'Syloti_Nagri', 'Syriac', 'Tagalog', 'Tagbanwa', 'Tai_Le', 'Tamil', 'Telugu', 'Thaana', \
22 'Thai', 'Tibetan', 'Tifinagh', 'Ugaritic', 'Yi', \
23 # New for Unicode 5.0
24 'Balinese', 'Cuneiform', 'Nko', 'Phags_Pa', 'Phoenician', \
25 # New for Unicode 5.1
26 'Carian', 'Cham', 'Kayah_Li', 'Lepcha', 'Lycian', 'Lydian', 'Ol_Chiki', 'Rejang', 'Saurashtra', 'Sundanese', 'Vai', \
27 # New for Unicode 5.2
28 'Avestan', 'Bamum', 'Egyptian_Hieroglyphs', 'Imperial_Aramaic', \
29 'Inscriptional_Pahlavi', 'Inscriptional_Parthian', \
30 'Javanese', 'Kaithi', 'Lisu', 'Meetei_Mayek', \
31 'Old_South_Arabian', 'Old_Turkic', 'Samaritan', 'Tai_Tham', 'Tai_Viet'
32 ]
33
34 category_names = ['Cc', 'Cf', 'Cn', 'Co', 'Cs', 'Ll', 'Lm', 'Lo', 'Lt', 'Lu',
35 'Mc', 'Me', 'Mn', 'Nd', 'Nl', 'No', 'Pc', 'Pd', 'Pe', 'Pf', 'Pi', 'Po', 'Ps',
36 'Sc', 'Sk', 'Sm', 'So', 'Zl', 'Zp', 'Zs' ]
37
38 general_category_names = ['C', 'L', 'M', 'N', 'P', 'S', 'Z']
39
40 # First add the Unicode script and category names.
41
42 utt_table = zip(script_names, ['PT_SC'] * len(script_names))
43 utt_table += zip(category_names, ['PT_PC'] * len(category_names))
44 utt_table += zip(general_category_names, ['PT_GC'] * len(general_category_names))
45
46 # Now add our own specials.
47
48 utt_table.append(('Any', 'PT_ANY'))
49 utt_table.append(('L&', 'PT_LAMP'))
50 utt_table.append(('Xan', 'PT_ALNUM'))
51 utt_table.append(('Xps', 'PT_PXSPACE'))
52 utt_table.append(('Xsp', 'PT_SPACE'))
53 utt_table.append(('Xwd', 'PT_WORD'))
54
55 # Sort the table.
56
57 utt_table.sort()
58
59 # We have to use STR_ macros to define the strings so that it all works in
60 # UTF-8 mode on EBCDIC platforms.
61
62 for utt in utt_table:
63 print '#define STRING_%s0' % (utt[0].replace('&', '_AMPERSAND')),
64 for c in utt[0]:
65 if c == '_':
66 print 'STR_UNDERSCORE',
67 elif c == '&':
68 print 'STR_AMPERSAND',
69 else:
70 print 'STR_%s' % c,;
71 print '"\\0"'
72
73 # Print the actual table, using the string names
74
75 print ''
76 print 'const char _pcre_utt_names[] = ';
77 last = ''
78 for utt in utt_table:
79 if utt == utt_table[-1]:
80 last = ';'
81 print ' STRING_%s0%s' % (utt[0].replace('&', '_AMPERSAND'), last)
82 # This was how it was done before the EBCDIC-compatible modification.
83 # print ' "%s\\0"%s' % (utt[0], last)
84
85 print '\nconst ucp_type_table _pcre_utt[] = { '
86 offset = 0
87 last = ','
88 for utt in utt_table:
89 if utt[1] in ('PT_ANY', 'PT_LAMP', 'PT_ALNUM', 'PT_PXSPACE',
90 'PT_SPACE', 'PT_WORD'):
91 value = '0'
92 else:
93 value = 'ucp_' + utt[0]
94 if utt == utt_table[-1]:
95 last = ''
96 print ' { %3d, %s, %s }%s ' % (offset, utt[1], value, last)
97 offset += len(utt[0]) + 1
98 print '};'

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