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Ignore certain lines when styling #560

merged 9 commits into from Nov 30, 2019


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@lorenzwalthert lorenzwalthert commented Oct 22, 2019

Closes #365 as well as it's duplicates #533 and #542, following the #365 (comment). Here is a short example of how to use it, it works both for segments as well as inline:

call(1 ) # styler: off
# styler: off
# also if there are more comments
test_xkj("hier", na.rm = 3, py = 43

x="new" # styler: off
y=1 # none

# styler: on
1 + 1

Taken from the outline in #365, this PR implements the functionality as follows:

Here is how to make sure this code does not get styled:

  • Before parse data is nested, we find the stylerignore tags and add a column
    stylerignore to the parse data which is false for all token except the
    tokens that fall between two stylerignore tags.

  • After code is turned into nested parse data and spaces and newlines are
    computed (must be between terminals, not between any token as currently done with
    default_style_guilde_attributes() edit: Because we need the position of tokens relative to other terminals, not tokens in general when serializing, we must do default_style_guilde_attributes() twice in total now). We store the lag_spaces and
    lag_newline attributes for all terminal tokens that are marked as
    stylerignore in the environment env_current.

  • We proceed as usual with appyling transformers and flattening out the parse

  • Right before we serialize the parse table, we replace lag_newlines, lag_spaces
    and tokens, text with the initial values for all tokens that were marked as
    stylerignore. Then we serialize.

@lorenzwalthert lorenzwalthert marked this pull request as ready for review Oct 22, 2019
@@ -0,0 +1,119 @@
#' Add positional information of token to next terminal
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@lorenzwalthert lorenzwalthert Oct 30, 2019

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Say in documentation that this function modifies env_current.

@lorenzwalthert lorenzwalthert force-pushed the stylerignore branch 4 times, most recently from f4a0ca6 to 36083e0 Compare Nov 30, 2019
@lorenzwalthert lorenzwalthert merged commit 54f4e11 into r-lib:master Nov 30, 2019
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@lorenzwalthert lorenzwalthert deleted the stylerignore branch Nov 30, 2019
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