Software `/` code `/` prosody

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util/array.lua @ 7567:495de404a8ae

ejabberdsql2prosody: rename variable 'host' to prevent shadowing upvalue [luacheck] Functions roster(), roster_pending(), roster_group(), private_storage() and offline_msg() have argument named "host", which used to shadow upvalue of this variable before this change. Instead of renaming this argument, let's rename the variable to match what the script says in usage: Usage: ejabberdsql2prosody.lua filename.txt hostname

author	Anton Shestakov <av6@dwimlabs.net>
date	Fri, 12 Aug 2016 13:44:47 +0800
parent	7020:6ab9c691c4c6
child	7699:9c40d0be2295

rev	line source
1522 569d58d21612 Add copyright header to those files missing one Matthew Wild <mwild1@gmail.com> parents: 1373 diff changeset	1 -- Prosody IM
2923 b7049746bd29 Update copyright headers for 2010 Matthew Wild <mwild1@gmail.com> parents: 1934 diff changeset	2 -- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010 Matthew Wild <mwild1@gmail.com> parents: 1934 diff changeset	3 -- Copyright (C) 2008-2010 Waqas Hussain
5776 bd0ff8ae98a8 Remove all trailing whitespace Florian Zeitz <florob@babelmonkeys.de> parents: 5564 diff changeset	4 --
1522 569d58d21612 Add copyright header to those files missing one Matthew Wild <mwild1@gmail.com> parents: 1373 diff changeset	5 -- This project is MIT/X11 licensed. Please see the
569d58d21612 Add copyright header to those files missing one Matthew Wild <mwild1@gmail.com> parents: 1373 diff changeset	6 -- COPYING file in the source package for more information.
569d58d21612 Add copyright header to those files missing one Matthew Wild <mwild1@gmail.com> parents: 1373 diff changeset	7 --
569d58d21612 Add copyright header to those files missing one Matthew Wild <mwild1@gmail.com> parents: 1373 diff changeset	8
3540 bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 2923 diff changeset	9 local t_insert, t_sort, t_remove, t_concat
bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 2923 diff changeset	10 = table.insert, table.sort, table.remove, table.concat;
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	11
4449 ca74d8ed1a15 util.array: Avoid globals. Waqas Hussain <waqas20@gmail.com> parents: 4448 diff changeset	12 local setmetatable = setmetatable;
ca74d8ed1a15 util.array: Avoid globals. Waqas Hussain <waqas20@gmail.com> parents: 4448 diff changeset	13 local math_random = math.random;
5857 8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	14 local math_floor = math.floor;
4449 ca74d8ed1a15 util.array: Avoid globals. Waqas Hussain <waqas20@gmail.com> parents: 4448 diff changeset	15 local pairs, ipairs = pairs, ipairs;
ca74d8ed1a15 util.array: Avoid globals. Waqas Hussain <waqas20@gmail.com> parents: 4448 diff changeset	16 local tostring = tostring;
6417 060b63a27e9b util.array: Add type() local Kim Alvefur <zash@zash.se> parents: 5857 diff changeset	17 local type = type;
4449 ca74d8ed1a15 util.array: Avoid globals. Waqas Hussain <waqas20@gmail.com> parents: 4448 diff changeset	18
1905 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 diff changeset	19 local array = {};
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 diff changeset	20 local array_base = {};
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 diff changeset	21 local array_methods = {};
5564 1292643ac498 util.array: Wrap tostring() output in {} (otherwise empty arrays print as ""). Waqas Hussain <waqas20@gmail.com> parents: 5085 diff changeset	22 local array_mt = { __index = array_methods, __tostring = function (array) return "{"..array:concat(", ").."}"; end };
1905 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 diff changeset	23
5085 cbc7eb5cfa8c util.array: Accept an iterator to the array constructor Matthew Wild <mwild1@gmail.com> parents: 4449 diff changeset	24 local function new_array(self, t, _s, _var)
cbc7eb5cfa8c util.array: Accept an iterator to the array constructor Matthew Wild <mwild1@gmail.com> parents: 4449 diff changeset	25 if type(t) == "function" then -- Assume iterator
cbc7eb5cfa8c util.array: Accept an iterator to the array constructor Matthew Wild <mwild1@gmail.com> parents: 4449 diff changeset	26 t = self.collect(t, _s, _var);
cbc7eb5cfa8c util.array: Accept an iterator to the array constructor Matthew Wild <mwild1@gmail.com> parents: 4449 diff changeset	27 end
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	28 return setmetatable(t or {}, array_mt);
967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	29 end
967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	30
1373 120275376bbb util.array: Add support for + operator to create a new array from two arrays joined Matthew Wild <mwild1@gmail.com> parents: 1372 diff changeset	31 function array_mt.__add(a1, a2)
120275376bbb util.array: Add support for + operator to create a new array from two arrays joined Matthew Wild <mwild1@gmail.com> parents: 1372 diff changeset	32 local res = new_array();
120275376bbb util.array: Add support for + operator to create a new array from two arrays joined Matthew Wild <mwild1@gmail.com> parents: 1372 diff changeset	33 return res:append(a1):append(a2);
120275376bbb util.array: Add support for + operator to create a new array from two arrays joined Matthew Wild <mwild1@gmail.com> parents: 1372 diff changeset	34 end
120275376bbb util.array: Add support for + operator to create a new array from two arrays joined Matthew Wild <mwild1@gmail.com> parents: 1372 diff changeset	35
920 e302cbc9d036 util.array: Expose array.* functions, to be used for unwrapped arrays Matthew Wild <mwild1@gmail.com> parents: 918 diff changeset	36 setmetatable(array, { __call = new_array });
e302cbc9d036 util.array: Expose array.* functions, to be used for unwrapped arrays Matthew Wild <mwild1@gmail.com> parents: 918 diff changeset	37
4440 c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	38 -- Read-only methods
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	39 function array_methods:random()
7019 abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	40 return self[math_random(1, #self)];
4440 c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	41 end
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	42
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	43 -- These methods can be called two ways:
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	44 -- array.method(existing_array, [params [, ...]]) -- Create new array for result
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	45 -- existing_array:method([params, ...]) -- Transform existing array into result
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	46 --
1905 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 diff changeset	47 function array_base.map(outa, ina, func)
7019 abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	48 for k, v in ipairs(ina) do
1905 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 diff changeset	49 outa[k] = func(v);
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	50 end
1905 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 diff changeset	51 return outa;
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	52 end
967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	53
1905 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 diff changeset	54 function array_base.filter(outa, ina, func)
1915 e9d5406caf8c util.array: Fix for array:filter() (in-place filtering) Matthew Wild <mwild1@gmail.com> parents: 1905 diff changeset	55 local inplace, start_length = ina == outa, #ina;
e9d5406caf8c util.array: Fix for array:filter() (in-place filtering) Matthew Wild <mwild1@gmail.com> parents: 1905 diff changeset	56 local write = 1;
7019 abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	57 for read = 1, start_length do
1915 e9d5406caf8c util.array: Fix for array:filter() (in-place filtering) Matthew Wild <mwild1@gmail.com> parents: 1905 diff changeset	58 local v = ina[read];
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	59 if func(v) then
1915 e9d5406caf8c util.array: Fix for array:filter() (in-place filtering) Matthew Wild <mwild1@gmail.com> parents: 1905 diff changeset	60 outa[write] = v;
e9d5406caf8c util.array: Fix for array:filter() (in-place filtering) Matthew Wild <mwild1@gmail.com> parents: 1905 diff changeset	61 write = write + 1;
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	62 end
967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	63 end
5776 bd0ff8ae98a8 Remove all trailing whitespace Florian Zeitz <florob@babelmonkeys.de> parents: 5564 diff changeset	64
1922 d5fe0f9b377a util.array: Small logic fix for array:filter() Matthew Wild <mwild1@gmail.com> parents: 1915 diff changeset	65 if inplace and write <= start_length then
7019 abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	66 for i = write, start_length do
1915 e9d5406caf8c util.array: Fix for array:filter() (in-place filtering) Matthew Wild <mwild1@gmail.com> parents: 1905 diff changeset	67 outa[i] = nil;
e9d5406caf8c util.array: Fix for array:filter() (in-place filtering) Matthew Wild <mwild1@gmail.com> parents: 1905 diff changeset	68 end
e9d5406caf8c util.array: Fix for array:filter() (in-place filtering) Matthew Wild <mwild1@gmail.com> parents: 1905 diff changeset	69 end
5776 bd0ff8ae98a8 Remove all trailing whitespace Florian Zeitz <florob@babelmonkeys.de> parents: 5564 diff changeset	70
1905 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 diff changeset	71 return outa;
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	72 end
967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	73
1905 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 diff changeset	74 function array_base.sort(outa, ina, ...)
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 diff changeset	75 if ina ~= outa then
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 diff changeset	76 outa:append(ina);
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 diff changeset	77 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 diff changeset	78 t_sort(outa, ...);
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 diff changeset	79 return outa;
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 diff changeset	80 end
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	81
4439 1c8d2c0d02db util.array: Add pluck() method to pick a given property from each item Matthew Wild <mwild1@gmail.com> parents: 4387 diff changeset	82 function array_base.pluck(outa, ina, key)
7019 abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	83 for i = 1, #ina do
4439 1c8d2c0d02db util.array: Add pluck() method to pick a given property from each item Matthew Wild <mwild1@gmail.com> parents: 4387 diff changeset	84 outa[i] = ina[i][key];
1c8d2c0d02db util.array: Add pluck() method to pick a given property from each item Matthew Wild <mwild1@gmail.com> parents: 4387 diff changeset	85 end
1c8d2c0d02db util.array: Add pluck() method to pick a given property from each item Matthew Wild <mwild1@gmail.com> parents: 4387 diff changeset	86 return outa;
1c8d2c0d02db util.array: Add pluck() method to pick a given property from each item Matthew Wild <mwild1@gmail.com> parents: 4387 diff changeset	87 end
1c8d2c0d02db util.array: Add pluck() method to pick a given property from each item Matthew Wild <mwild1@gmail.com> parents: 4387 diff changeset	88
5857 8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	89 function array_base.reverse(outa, ina)
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	90 local len = #ina;
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	91 if ina == outa then
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	92 local middle = math_floor(len/2);
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	93 len = len + 1;
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	94 local o; -- opposite
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	95 for i = 1, middle do
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	96 o = len - i;
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	97 outa[i], outa[o] = outa[o], outa[i];
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	98 end
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	99 else
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	100 local off = len + 1;
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	101 for i = 1, len do
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	102 outa[i] = ina[off - i];
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	103 end
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	104 end
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	105 return outa;
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	106 end
8613888d0f9e util.array: Improve array:reverse() and make it work as both method and non-mutating function Kim Alvefur <zash@zash.se> parents: 5776 diff changeset	107
4440 c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	108 --- These methods only mutate the array
1905 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 diff changeset	109 function array_methods:shuffle(outa, ina)
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	110 local len = #self;
7019 abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	111 for i = 1, #self do
abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	112 local r = math_random(i, len);
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	113 self[i], self[r] = self[r], self[i];
967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	114 end
1372 3b13bb57002e util.array: Make array:reverse() and array:shuffle() return the array to allow chaining Matthew Wild <mwild1@gmail.com> parents: 1371 diff changeset	115 return self;
918 967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	116 end
967edf874df7 util.array: New array library Matthew Wild <mwild1@gmail.com> parents: diff changeset	117
1905 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 diff changeset	118 function array_methods:append(array)
7019 abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	119 local len, len2 = #self, #array;
abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	120 for i = 1, len2 do
1371 9e45bdf55353 util.array: Add array:append() method, to append a new array to an existing one Matthew Wild <mwild1@gmail.com> parents: 1027 diff changeset	121 self[len+i] = array[i];
9e45bdf55353 util.array: Add array:append() method, to append a new array to an existing one Matthew Wild <mwild1@gmail.com> parents: 1027 diff changeset	122 end
9e45bdf55353 util.array: Add array:append() method, to append a new array to an existing one Matthew Wild <mwild1@gmail.com> parents: 1027 diff changeset	123 return self;
9e45bdf55353 util.array: Add array:append() method, to append a new array to an existing one Matthew Wild <mwild1@gmail.com> parents: 1027 diff changeset	124 end
9e45bdf55353 util.array: Add array:append() method, to append a new array to an existing one Matthew Wild <mwild1@gmail.com> parents: 1027 diff changeset	125
4440 c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	126 function array_methods:push(x)
4449 ca74d8ed1a15 util.array: Avoid globals. Waqas Hussain <waqas20@gmail.com> parents: 4448 diff changeset	127 t_insert(self, x);
4448 d745f4c28294 util.array: Make array:push() chainable. Waqas Hussain <waqas20@gmail.com> parents: 4440 diff changeset	128 return self;
4440 c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	129 end
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	130
7020 6ab9c691c4c6 util.array: Just use table.remove as array:pop() Kim Alvefur <zash@zash.se> parents: 7019 diff changeset	131 array_methods.pop = t_remove;
4440 c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	132
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	133 function array_methods:concat(sep)
4449 ca74d8ed1a15 util.array: Avoid globals. Waqas Hussain <waqas20@gmail.com> parents: 4448 diff changeset	134 return t_concat(array.map(self, tostring), sep);
4440 c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	135 end
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	136
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	137 function array_methods:length()
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	138 return #self;
c60ed6732b34 util.array: Expand some of the more basic methods to act more sensibly than their names suggested Matthew Wild <mwild1@gmail.com> parents: 4439 diff changeset	139 end
1905 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 diff changeset	140
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 diff changeset	141 --- These methods always create a new array
1027 fe2e3d3dba6a 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	142 function array.collect(f, s, var)
4387 06161b0b83f2 util.array: Fix array.collect() for iterators that expect initial value of var to be preserved Matthew Wild <mwild1@gmail.com> parents: 3540 diff changeset	143 local t = {};
1027 fe2e3d3dba6a 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	144 while true do
fe2e3d3dba6a 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	145 var = f(s, var);
7019 abcd5ec3ee41 util.array: Fix minory style issues Kim Alvefur <zash@zash.se> parents: 6777 diff changeset	146 if var == nil then break; end
4449 ca74d8ed1a15 util.array: Avoid globals. Waqas Hussain <waqas20@gmail.com> parents: 4448 diff changeset	147 t_insert(t, var);
1027 fe2e3d3dba6a 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	148 end
fe2e3d3dba6a 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	149 return setmetatable(t, array_mt);
fe2e3d3dba6a 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	150 end
fe2e3d3dba6a 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	151
1905 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 diff changeset	152 ---
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 diff changeset	153
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 diff changeset	154 -- Setup methods from array_base
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 diff changeset	155 for method, f in pairs(array_base) do
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 diff changeset	156 local base_method = f;
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 diff changeset	157 -- Setup global array method which makes new array
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 diff changeset	158 array[method] = function (old_a, ...)
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 diff changeset	159 local a = new_array();
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 diff changeset	160 return base_method(a, old_a, ...);
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 diff changeset	161 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 diff changeset	162 -- Setup per-array (mutating) method
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 diff changeset	163 array_methods[method] = function (self, ...)
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 diff changeset	164 return base_method(self, self, ...);
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 diff changeset	165 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 diff changeset	166 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 diff changeset	167
1027 fe2e3d3dba6a 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	168 return array;

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util/array.lua

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