1 | #!./perl |
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2 | |
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3 | BEGIN { |
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4 | chdir 't' if -d 't'; |
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5 | @INC = '../lib'; |
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6 | require './test.pl'; |
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7 | } |
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8 | |
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9 | plan tests => 51; |
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10 | |
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11 | $_ = 'abc'; |
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12 | $c = do foo(); |
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13 | is ($c . $_, 'cab', 'optimized'); |
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14 | |
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15 | $_ = 'abc'; |
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16 | $c = chop($_); |
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17 | is ($c . $_ , 'cab', 'unoptimized'); |
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18 | |
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19 | sub foo { |
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20 | chop; |
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21 | } |
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22 | |
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23 | @foo = ("hi \n","there\n","!\n"); |
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24 | @bar = @foo; |
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25 | chop(@bar); |
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26 | is (join('',@bar), 'hi there!'); |
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27 | |
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28 | $foo = "\n"; |
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29 | chop($foo,@foo); |
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30 | is (join('',$foo,@foo), 'hi there!'); |
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31 | |
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32 | $_ = "foo\n\n"; |
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33 | $got = chomp(); |
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34 | ok ($got == 1) or print "# got $got\n"; |
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35 | is ($_, "foo\n"); |
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36 | |
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37 | $_ = "foo\n"; |
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38 | $got = chomp(); |
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39 | ok ($got == 1) or print "# got $got\n"; |
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40 | is ($_, "foo"); |
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41 | |
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42 | $_ = "foo"; |
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43 | $got = chomp(); |
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44 | ok ($got == 0) or print "# got $got\n"; |
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45 | is ($_, "foo"); |
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46 | |
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47 | $_ = "foo"; |
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48 | $/ = "oo"; |
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49 | $got = chomp(); |
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50 | ok ($got == 2) or print "# got $got\n"; |
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51 | is ($_, "f"); |
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52 | |
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53 | $_ = "bar"; |
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54 | $/ = "oo"; |
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55 | $got = chomp(); |
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56 | ok ($got == 0) or print "# got $got\n"; |
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57 | is ($_, "bar"); |
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58 | |
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59 | $_ = "f\n\n\n\n\n"; |
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60 | $/ = ""; |
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61 | $got = chomp(); |
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62 | ok ($got == 5) or print "# got $got\n"; |
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63 | is ($_, "f"); |
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64 | |
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65 | $_ = "f\n\n"; |
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66 | $/ = ""; |
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67 | $got = chomp(); |
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68 | ok ($got == 2) or print "# got $got\n"; |
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69 | is ($_, "f"); |
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70 | |
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71 | $_ = "f\n"; |
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72 | $/ = ""; |
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73 | $got = chomp(); |
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74 | ok ($got == 1) or print "# got $got\n"; |
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75 | is ($_, "f"); |
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76 | |
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77 | $_ = "f"; |
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78 | $/ = ""; |
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79 | $got = chomp(); |
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80 | ok ($got == 0) or print "# got $got\n"; |
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81 | is ($_, "f"); |
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82 | |
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83 | $_ = "xx"; |
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84 | $/ = "xx"; |
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85 | $got = chomp(); |
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86 | ok ($got == 2) or print "# got $got\n"; |
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87 | is ($_, ""); |
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88 | |
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89 | $_ = "axx"; |
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90 | $/ = "xx"; |
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91 | $got = chomp(); |
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92 | ok ($got == 2) or print "# got $got\n"; |
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93 | is ($_, "a"); |
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94 | |
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95 | $_ = "axx"; |
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96 | $/ = "yy"; |
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97 | $got = chomp(); |
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98 | ok ($got == 0) or print "# got $got\n"; |
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99 | is ($_, "axx"); |
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100 | |
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101 | # This case once mistakenly behaved like paragraph mode. |
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102 | $_ = "ab\n"; |
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103 | $/ = \3; |
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104 | $got = chomp(); |
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105 | ok ($got == 0) or print "# got $got\n"; |
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106 | is ($_, "ab\n"); |
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107 | |
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108 | # Go Unicode. |
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109 | |
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110 | $_ = "abc\x{1234}"; |
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111 | chop; |
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112 | is ($_, "abc", "Go Unicode"); |
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113 | |
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114 | $_ = "abc\x{1234}d"; |
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115 | chop; |
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116 | is ($_, "abc\x{1234}"); |
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117 | |
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118 | $_ = "\x{1234}\x{2345}"; |
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119 | chop; |
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120 | is ($_, "\x{1234}"); |
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121 | |
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122 | my @stuff = qw(this that); |
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123 | is (chop(@stuff[0,1]), 't'); |
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124 | |
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125 | # bug id 20010305.012 |
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126 | @stuff = qw(ab cd ef); |
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127 | is (chop(@stuff = @stuff), 'f'); |
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128 | |
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129 | @stuff = qw(ab cd ef); |
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130 | is (chop(@stuff[0, 2]), 'f'); |
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131 | |
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132 | my %stuff = (1..4); |
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133 | is (chop(@stuff{1, 3}), '4'); |
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134 | |
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135 | # chomp should not stringify references unless it decides to modify them |
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136 | $_ = []; |
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137 | $/ = "\n"; |
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138 | $got = chomp(); |
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139 | ok ($got == 0) or print "# got $got\n"; |
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140 | is (ref($_), "ARRAY", "chomp ref (modify)"); |
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141 | |
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142 | $/ = ")"; # the last char of something like "ARRAY(0x80ff6e4)" |
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143 | $got = chomp(); |
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144 | ok ($got == 1) or print "# got $got\n"; |
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145 | ok (!ref($_), "chomp ref (no modify)"); |
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146 | |
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147 | $/ = "\n"; |
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148 | |
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149 | %chomp = ("One" => "One", "Two\n" => "Two", "" => ""); |
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150 | %chop = ("One" => "On", "Two\n" => "Two", "" => ""); |
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151 | |
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152 | foreach (keys %chomp) { |
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153 | my $key = $_; |
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154 | eval {chomp $_}; |
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155 | if ($@) { |
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156 | my $err = $@; |
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157 | $err =~ s/\n$//s; |
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158 | fail ("\$\@ = \"$err\""); |
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159 | } else { |
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160 | is ($_, $chomp{$key}, "chomp hash key"); |
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161 | } |
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162 | } |
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163 | |
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164 | foreach (keys %chop) { |
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165 | my $key = $_; |
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166 | eval {chop $_}; |
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167 | if ($@) { |
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168 | my $err = $@; |
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169 | $err =~ s/\n$//s; |
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170 | fail ("\$\@ = \"$err\""); |
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171 | } else { |
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172 | is ($_, $chop{$key}, "chop hash key"); |
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173 | } |
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174 | } |
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175 | |
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176 | # chop and chomp can't be lvalues |
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177 | eval 'chop($x) = 1;'; |
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178 | ok($@ =~ /Can\'t modify.*chop.*in.*assignment/); |
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179 | eval 'chomp($x) = 1;'; |
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180 | ok($@ =~ /Can\'t modify.*chom?p.*in.*assignment/); |
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181 | eval 'chop($x, $y) = (1, 2);'; |
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182 | ok($@ =~ /Can\'t modify.*chop.*in.*assignment/); |
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183 | eval 'chomp($x, $y) = (1, 2);'; |
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184 | ok($@ =~ /Can\'t modify.*chom?p.*in.*assignment/); |
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185 | |
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