Add information about previous / next token to each terminal
Note that this does function must be called in compute_parse_data_nested()
and we cannot wait to initialize this attribute until apply_transformers(),
where all other attributes are initialized with
default_style_guide_attributes() (when using tidyverse_style()) because
for cached code, we don't build up the nested structure and leave it shallow
(to speed up things), see also drop_cached_children().
add_terminal_token_after(pd_flat) add_terminal_token_before(pd_flat) add_attributes_caching(pd_flat, transformers, more_specs) remove_terminal_token_before_and_after(pd_flat)
pd_flat |
A flat parse table. |
transformers |
Passed to |
more_specs |
Passed to |
add_attributes_caching: Initializes newlines and lag_newlines.
remove_terminal_token_before_and_after: Removes column terimnal_token_before. Might
be used to prevent the use of invalidated information, e.g. if tokens were
added to the nested parse table.
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