1 ! Copyright (C) 2008 Slava Pestov.
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2 ! See http://factorcode.org/license.txt for BSD license.
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3 USING: accessors assocs math kernel shuffle generalizations
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4 words quotations arrays combinators sequences math.vectors
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5 io.styles prettyprint vocabs sorting io generic
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6 math.statistics math.order locals.types
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10 : badness ( word -- n )
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81 : vsum ( pairs -- pair ) { 0 0 } [ v+ ] reduce ;
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83 GENERIC: noise ( obj -- pair )
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85 M: word noise badness 1 2array ;
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87 M: wrapper noise wrapped>> noise ;
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89 M: let noise body>> noise ;
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91 M: wlet noise body>> noise ;
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93 M: lambda noise body>> noise ;
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95 M: object noise drop { 0 0 } ;
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97 M: quotation noise [ noise ] map vsum { 1/4 1/2 } v+ ;
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99 M: array noise [ noise ] map vsum ;
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101 : noise-factor ( x y -- z ) / 100 * >integer ;
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103 : quot-noise-factor ( quot -- n )
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104 #! For very short words, noise doesn't count so much
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105 #! (so dup foo swap bar isn't penalized as badly).
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107 { [ over 4 <= ] [ [ drop 0 ] dip ] }
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108 { [ over 15 >= ] [ [ 2 * ] dip ] }
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112 ! short words are easier to read
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113 { [ dup 10 <= ] [ [ 2 / ] dip ] }
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114 { [ dup 5 <= ] [ [ 3 / ] dip ] }
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115 ! long words are penalized even more
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116 { [ dup 25 >= ] [ [ 2 * ] dip 20 max ] }
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117 { [ dup 20 >= ] [ [ 5/3 * ] dip ] }
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118 { [ dup 15 >= ] [ [ 3/2 * ] dip ] }
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120 } cond noise-factor ;
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122 GENERIC: word-noise-factor ( word -- factor )
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124 M: word word-noise-factor
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125 def>> quot-noise-factor ;
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127 M: lambda-word word-noise-factor
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128 "lambda" word-prop quot-noise-factor ;
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130 : flatten-generics ( words -- words' )
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132 dup generic? [ "methods" word-prop values ] [ 1array ] if
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135 : noisy-words ( -- alist )
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136 all-words flatten-generics
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137 [ dup word-noise-factor ] { } map>assoc
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138 sort-values reverse ;
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140 : noise. ( alist -- )
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141 standard-table-style [
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143 [ [ pprint-cell ] [ pprint-cell ] bi* ] with-row
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147 : vocab-noise-factor ( vocab -- factor )
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148 words flatten-generics
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149 [ word-noise-factor dup 20 < [ drop 0 ] when ] map
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151 [ [ sum ] [ length 5 max ] bi /i ]
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156 : noisy-vocabs ( -- alist )
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157 vocabs [ dup vocab-noise-factor ] { } map>assoc
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158 sort-values reverse ;
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160 : noise-report ( -- )
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161 "NOISY WORDS:" print
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162 noisy-words 80 head noise.
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164 "NOISY VOCABS:" print
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165 noisy-vocabs 80 head noise. ;
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