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doc fixes for transplant-input-port & related

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svn: r10484
This commit is contained in:
Matthew Flatt 2008-06-28 02:47:11 +00:00
parent c4be4bd7a5
commit 607c65fe4c
2 changed files with 16 additions and 14 deletions
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19
collects/scribblings/reference/custom-ports.scrbl
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@ -303,13 +303,13 @@ The arguments implement the port as follows:
and the position for the next item in the port's stream (a
positive number or @scheme[#f]). See also @secref["linecol"].
This procedure is only called if line counting is enabled for the
port via @scheme[port-count-lines!] (in which case
@scheme[count-lines!] is called). The @scheme[read],
@scheme[read-syntax], @scheme[read-honu], and
@scheme[read-honu-syntax] procedures assume that reading a
non-whitespace character increments the column and position by
one.}
This procedure is called to implement @scheme[port-next-location],
but only if line counting is enabled for the port via
@scheme[port-count-lines!] (in which case @scheme[count-lines!] is
called). The @scheme[read], @scheme[read-syntax],
@scheme[read-honu], and @scheme[read-honu-syntax] procedures
assume that reading a non-whitespace character increments the
column and position by one.}
@item{@scheme[count-lines!] --- a procedure of no arguments
that is called if and when line counting is enabled for the port.
@ -943,8 +943,9 @@ procedures.
stream (a positive number or @scheme[#f]). See also
@secref["linecol"].
This procedure is only called if line counting is enabled for the
port via @scheme[port-count-lines!] (in which case
This procedure is called to implement @scheme[port-next-location]
for the port, but only if line counting is enabled for the port
via @scheme[port-count-lines!] (in which case
@scheme[count-lines!] is called).}
@item{@scheme[count-lines!] --- a procedure of no arguments

11
collects/scribblings/reference/port-lib.scrbl
View File

@ -344,16 +344,17 @@ Like @scheme[relocate-input-port], but for output ports.}
(or/c exact-nonnegative-integer? false/c)
(or/c exact-positive-integer? false/c)))
false/c)]
[init-pos (-> exact-positive-integer?)]
[init-pos exact-positive-integer?]
[close? any/c #t]
[count-lines! (-> any) void])
input-port?]{
Like @scheme[relocate-input-port], except that arbitrary position
information can be produced (when line counting is enabled) via
@scheme[get-location]. If @scheme[get-location] is @scheme[#f], then
the port counts lines in the usual way starting from
@scheme[init-pos], independent of locations reported by @scheme[in].
@scheme[get-location], which used as for @scheme[make-input-port]. If
@scheme[get-location] is @scheme[#f], then the port counts lines in
the usual way starting from @scheme[init-pos], independent of
locations reported by @scheme[in].
If @scheme[count-lines!] is supplied, it is called when line counting
is enabled for the resulting port. The default is @scheme[void].}
@ -366,7 +367,7 @@ is enabled for the resulting port. The default is @scheme[void].}
(or/c exact-nonnegative-integer? false/c)
(or/c exact-positive-integer? false/c)))
false/c)]
[init-pos (-> exact-positive-integer?)]
[init-pos exact-positive-integer?]
[close? any/c #t]
[count-lines! (-> any) void])
output-port?]{