Fri, 13 Nov 2009 06:29:37 +0500
util.sasl: Improved a log message.
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1 | -- Prosody IM |
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2 | -- Copyright (C) 2008-2009 Matthew Wild |
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3 | -- Copyright (C) 2008-2009 Waqas Hussain |
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4 | -- |
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5 | -- This project is MIT/X11 licensed. Please see the |
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6 | -- COPYING file in the source package for more information. |
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7 | -- |
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8 | |
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9 | local t_insert, t_sort, t_remove, t_concat |
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10 | = table.insert, table.sort, table.remove, table.concat; |
918 | 11 | |
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12 | local array = {}; |
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13 | local array_base = {}; |
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14 | local array_methods = {}; |
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15 | local array_mt = { __index = array_methods, __tostring = function (array) return array:concat(", "); end }; |
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16 | |
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17 | local function new_array(_, t) |
918 | 18 | return setmetatable(t or {}, array_mt); |
19 | end | |
20 | ||
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21 | function array_mt.__add(a1, a2) |
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22 | local res = new_array(); |
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23 | return res:append(a1):append(a2); |
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24 | end |
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25 | |
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26 | setmetatable(array, { __call = new_array }); |
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27 | |
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28 | function array_base.map(outa, ina, func) |
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29 | for k,v in ipairs(ina) do |
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30 | outa[k] = func(v); |
918 | 31 | end |
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32 | return outa; |
918 | 33 | end |
34 | ||
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35 | function array_base.filter(outa, ina, func) |
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36 | local inplace, start_length = ina == outa, #ina; |
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37 | local write = 1; |
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38 | for read=1,start_length do |
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39 | local v = ina[read]; |
918 | 40 | if func(v) then |
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41 | outa[write] = v; |
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42 | write = write + 1; |
918 | 43 | end |
44 | end | |
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45 | |
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46 | if inplace and write <= start_length then |
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47 | for i=write,start_length do |
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48 | outa[i] = nil; |
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49 | end |
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50 | end |
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51 | |
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52 | return outa; |
918 | 53 | end |
54 | ||
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55 | function array_base.sort(outa, ina, ...) |
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56 | if ina ~= outa then |
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57 | outa:append(ina); |
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58 | end |
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59 | t_sort(outa, ...); |
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60 | return outa; |
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61 | end |
918 | 62 | |
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63 | --- These methods only mutate |
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64 | function array_methods:random() |
918 | 65 | return self[math.random(1,#self)]; |
66 | end | |
67 | ||
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68 | function array_methods:shuffle(outa, ina) |
918 | 69 | local len = #self; |
70 | for i=1,#self do | |
71 | local r = math.random(i,len); | |
72 | self[i], self[r] = self[r], self[i]; | |
73 | end | |
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74 | return self; |
918 | 75 | end |
76 | ||
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77 | function array_methods:reverse() |
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78 | local len = #self-1; |
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79 | for i=len,1,-1 do |
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80 | self:push(self[i]); |
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81 | self:pop(i); |
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82 | end |
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83 | return self; |
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84 | end |
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85 | |
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86 | function array_methods:append(array) |
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87 | local len,len2 = #self, #array; |
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88 | for i=1,len2 do |
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89 | self[len+i] = array[i]; |
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90 | end |
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91 | return self; |
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92 | end |
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93 | |
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94 | array_methods.push = table.insert; |
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95 | array_methods.pop = table.remove; |
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96 | array_methods.concat = table.concat; |
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97 | array_methods.length = function (t) return #t; end |
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98 | |
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99 | --- These methods always create a new array |
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100 | function array.collect(f, s, var) |
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101 | local t, var = {}; |
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102 | while true do |
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103 | var = f(s, var); |
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104 | if var == nil then break; end |
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105 | table.insert(t, var); |
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106 | end |
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107 | return setmetatable(t, array_mt); |
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108 | end |
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109 | |
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110 | --- |
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111 | |
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112 | -- Setup methods from array_base |
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113 | for method, f in pairs(array_base) do |
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114 | local base_method = f; |
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115 | -- Setup global array method which makes new array |
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116 | array[method] = function (old_a, ...) |
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117 | local a = new_array(); |
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118 | return base_method(a, old_a, ...); |
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119 | end |
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Matthew Wild <mwild1@gmail.com>
parents:
1522
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120 | -- Setup per-array (mutating) method |
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util.array: Per-array methods now always mutate the array, array.* return a mutated copy, and most methods (e.g. sort) now return the array
Matthew Wild <mwild1@gmail.com>
parents:
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121 | array_methods[method] = function (self, ...) |
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util.array: Per-array methods now always mutate the array, array.* return a mutated copy, and most methods (e.g. sort) now return the array
Matthew Wild <mwild1@gmail.com>
parents:
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122 | return base_method(self, self, ...); |
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util.array: Per-array methods now always mutate the array, array.* return a mutated copy, and most methods (e.g. sort) now return the array
Matthew Wild <mwild1@gmail.com>
parents:
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123 | end |
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util.array: Per-array methods now always mutate the array, array.* return a mutated copy, and most methods (e.g. sort) now return the array
Matthew Wild <mwild1@gmail.com>
parents:
1522
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124 | end |
e3e0a17e0b33
util.array: Per-array methods now always mutate the array, array.* return a mutated copy, and most methods (e.g. sort) now return the array
Matthew Wild <mwild1@gmail.com>
parents:
1522
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125 | |
1027
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util.array: Add array.collect() to collect results from iterators into an array, and use module() to correctly set the module name
Matthew Wild <mwild1@gmail.com>
parents:
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126 | _G.array = array; |
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util.array: Add array.collect() to collect results from iterators into an array, and use module() to correctly set the module name
Matthew Wild <mwild1@gmail.com>
parents:
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127 | module("array"); |
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util.array: Add array.collect() to collect results from iterators into an array, and use module() to correctly set the module name
Matthew Wild <mwild1@gmail.com>
parents:
922
diff
changeset
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128 | |
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util.array: Add array.collect() to collect results from iterators into an array, and use module() to correctly set the module name
Matthew Wild <mwild1@gmail.com>
parents:
922
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129 | return array; |