Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_regex.py @ 5817:48b94de85bf3 legacy-trunk

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Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
parents 55dff8169cf5
children aedd2d0dcb31
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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2cb469a421a9 added test of the regex module
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1 from test_support import verbose
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2 import regex
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3 from regex_syntax import *
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4
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5 re = 'a+b+c+'
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6 print 'no match:', regex.match(re, 'hello aaaabcccc world')
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7 print 'successful search:', regex.search(re, 'hello aaaabcccc world')
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8 try:
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9 cre = regex.compile('\(' + re)
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10 except regex.error:
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11 print 'caught expected exception'
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12 else:
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13 print 'expected regex.error not raised'
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14
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15 print 'failed awk syntax:', regex.search('(a+)|(b+)', 'cdb')
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16 prev = regex.set_syntax(RE_SYNTAX_AWK)
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17 print 'successful awk syntax:', regex.search('(a+)|(b+)', 'cdb')
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18 regex.set_syntax(prev)
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19 print 'failed awk syntax:', regex.search('(a+)|(b+)', 'cdb')
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20
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21 re = '\(<one>[0-9]+\) *\(<two>[0-9]+\)'
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22 print 'matching with group names and compile()'
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23 cre = regex.compile(re)
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24 print cre.match('801 999')
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25 try:
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26 print cre.group('one')
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27 except regex.error:
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28 print 'caught expected exception'
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29 else:
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30 print 'expected regex.error not raised'
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31
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32 print 'matching with group names and symcomp()'
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33 cre = regex.symcomp(re)
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34 print cre.match('801 999')
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35 print cre.group(0)
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36 print cre.group('one')
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37 print cre.group(1, 2)
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38 print cre.group('one', 'two')
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39 print 'realpat:', cre.realpat
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40 print 'groupindex:', cre.groupindex
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41
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42 re = 'world'
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43 cre = regex.compile(re)
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44 print 'not case folded search:', cre.search('HELLO WORLD')
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45 cre = regex.compile(re, regex.casefold)
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46 print 'case folded search:', cre.search('HELLO WORLD')
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47
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48 print '__members__:', cre.__members__
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49 print 'regs:', cre.regs
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50 print 'last:', cre.last
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51 print 'translate:', len(cre.translate)
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52 print 'givenpat:', cre.givenpat
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53
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54 print 'match with pos:', cre.match('hello world', 7)
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55 print 'search with pos:', cre.search('hello world there world', 7)
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56 print 'bogus group:', cre.group(0, 1, 3)
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57 try:
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58 print 'no name:', cre.group('one')
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59 except regex.error:
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60 print 'caught expected exception'
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61 else:
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62 print 'expected regex.error not raised'
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63
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64 from regex_tests import *
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65 if verbose: print 'Running regex_tests test suite'
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66
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67 for t in tests:
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68 pattern=s=outcome=repl=expected=None
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69 if len(t)==5:
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70 pattern, s, outcome, repl, expected = t
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71 elif len(t)==3:
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72 pattern, s, outcome = t
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73 else:
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74 raise ValueError, ('Test tuples should have 3 or 5 fields',t)
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75
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76 try:
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77 obj=regex.compile(pattern)
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78 except regex.error:
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79 if outcome==SYNTAX_ERROR: pass # Expected a syntax error
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80 else:
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81 # Regex syntax errors aren't yet reported, so for
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82 # the official test suite they'll be quietly ignored.
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83 pass
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84 #print '=== Syntax error:', t
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85 else:
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86 try:
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87 result=obj.search(s)
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88 except regex.error, msg:
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89 print '=== Unexpected exception', t, repr(msg)
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90 if outcome==SYNTAX_ERROR:
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91 # This should have been a syntax error; forget it.
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92 pass
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93 elif outcome==FAIL:
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94 if result==-1: pass # No match, as expected
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95 else: print '=== Succeeded incorrectly', t
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96 elif outcome==SUCCEED:
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97 if result!=-1:
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98 # Matched, as expected, so now we compute the
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99 # result string and compare it to our expected result.
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100 start, end = obj.regs[0]
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101 found=s[start:end]
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102 groups=obj.group(1,2,3,4,5,6,7,8,9,10)
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103 vardict=vars()
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104 for i in range(len(groups)):
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105 vardict['g'+str(i+1)]=str(groups[i])
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106 repl=eval(repl)
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107 if repl!=expected:
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108 print '=== grouping error', t, repr(repl)+' should be '+repr(expected)
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109 else:
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110 print '=== Failed incorrectly', t