Utilities¶
Functions on tables¶
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halmd.utility.
empty
(t)¶ Test if table is empty.
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halmd.utility.
keys
(t)¶ Returns table with sorted keys of table t as values.
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halmd.utility.
sorted
(t)¶ Returns iterator over pairs of table t sorted by key.
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halmd.utility.
reverse
(t)¶ Returns table with keys as values and values as keys.
Assertions¶
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halmd.utility.
assert_kwarg
(args, key, level)¶ Assert keyword argument of table and return its value.
Parameters: - args (table) – argument table
- key (string) – parameter key
- level (number) – call stack level for error message (default: 2)
Returns: args[key]
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halmd.utility.
assert_type
(var, name, level)¶ Assert type of variable.
Parameters: - var – variable to check
- name (string) – Lua type name
- level (number) – call stack level for error message (default: 2)
Returns: var