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util/envload.lua @ 13182:c48ae06e24d6
util.datamanager: Fix indexing first item if not at the very start
If the first item does not start at position 0 then the index function
produces a phantom first entry covering position zero until where the
real first item starts. When using the index, this would make it either
appear as the first item was missing or cause an off-by-one issue with
remaining items.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 10 Jul 2023 17:19:05 +0200 |
parent | 12576:d1aacc6a81ac |
rev | line source |
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5020
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util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff
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1 -- Prosody IM |
ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
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2 -- Copyright (C) 2008-2011 Florian Zeitz |
ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
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3 -- |
ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff
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4 -- This project is MIT/X11 licensed. Please see the |
ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff
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5 -- COPYING file in the source package for more information. |
ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff
changeset
|
6 -- |
8416
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util.envload: Ignore "undefined variable" warning for loadstring [luacheck with strict 5.2 or 5.3 checks]
Kim Alvefur <zash@zash.se>
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7 -- luacheck: ignore 113/setfenv 113/loadstring |
5020
ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff
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8 |
12576
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util.envload: Remove Lua 5.1 method
Kim Alvefur <zash@zash.se>
parents:
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9 local load = load; |
7924
8487fe9fc335
util.envload: Open file here instead of letting loadfile do it so that all return values from io.open can be collected
Kim Alvefur <zash@zash.se>
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10 local io_open = io.open; |
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ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff
changeset
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11 |
12576
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util.envload: Remove Lua 5.1 method
Kim Alvefur <zash@zash.se>
parents:
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12 local function envload(code, source, env) |
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13 return load(code, source, nil, env); |
d1aacc6a81ac
util.envload: Remove Lua 5.1 method
Kim Alvefur <zash@zash.se>
parents:
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14 end |
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util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
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|
15 |
12576
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Kim Alvefur <zash@zash.se>
parents:
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16 local function envloadfile(file, env) |
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17 local fh, err, errno = io_open(file); |
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18 if not fh then return fh, err, errno; end |
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19 local f, err = load(fh:lines(2048), "@" .. file, nil, env); |
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20 fh:close(); |
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21 return f, err; |
5020
ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff
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22 end |
ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff
changeset
|
23 |
ef1eb65acbba
util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
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24 return { envload = envload, envloadfile = envloadfile }; |