41 lines
970 B
BNF
41 lines
970 B
BNF
{%
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# Lists of axes
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In various commands such as `//copy+`, `//move+`, and others lists of axes are used. These are all underpinned by a single grammar and a single parser (located in `worldeditadditions/utils/parse/axes.lua`). While the parser itself requires pre-split tokens (see `split_shell` for that), the grammar which it parses is documented here.
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Examples:
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```
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front 3 left 10 y 77 x 30 back 99
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```
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%}
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<axes> ::= <axis_part> *
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<axes_part> ::= <axis_name> <number>
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| <axis_name> <number> <reverse>
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<reverse> ::= <number>
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| <reverse_name>
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<reverse_name> ::= sym | symmetrical | mirror | mir | rev | reverse | true
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<axis_name> ::= <axis_name_absolute>
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| <axis_name_relative>
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<axis_name_absolute> ::= <axis_letters_absolute>
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| "-" <axis_letters_absolute>
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<axis_name_relative> ::= front | back | left | right | up | down | "?"
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<axis_letters_absolute> ::= x | y | z | h | v
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<number> ::= <digit> *
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<digit> ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 0
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