7.7
35 Formatting identifiers so that
DrRacket still shows arrows
Like
format-id, but cooperates with
with-sub-range-binders
to record sub-range binders, which allow DrRacket to draw arrows from the
identifiers present in
vs ... to occurrences of the resulting
identifier. It also means that when one or more identifiers present in
vs ... are concatenated with other strings, it is possible to rename
parts of the resulting identifier in DrRacket.
If fmt is a syntax object containing a string, then arrows are drawn
from the format itself to the generated identifier, for each part of the
format which appears in the identifier (e.g. if the format is
"x~~y~az", then two arrows will be drawn from the format, one for
"x~~y", and one for "z".
This function must be called within the dynamic extent of
with-sub-range-binders or with-arrows.
Equivalent to:
Equivalent to:
Within the syntax-parser-options+clauses, it is possible to use the
stx identifier to refer to the whole syntax, in addition to using
syntax/parse’s this-syntax.
This function must be called within the dynamic extent of
with-sub-range-binders or with-arrows.
If this function is not called within the dynamic extent of
with-sub-range-binders or with-arrows, it has no effect and
the sub-range-binders are not recorded.