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reference racket conversions and scribble qq repairs

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This commit is contained in:
Matthew Flatt 2010-04-23 17:00:53 -06:00
parent d824fef4f7
commit 7cb13860ee
9 changed files with 226 additions and 200 deletions
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9
collects/scribble/racket.ss
View File

@ -519,7 +519,7 @@
(set! src-col (+ src-col (- (syntax-span c) 2)))
(set! src-col (+ src-col (- (syntax-column (vector-ref vec 0))
(syntax-column c)
1)))))))
1))))))
(when (struct? (syntax-e c))
(out "#s" p-color)
(set! src-col (+ src-col 2)))
@ -532,7 +532,7 @@
(hash-set! next-col-map src-col dest-col)
(let lloop ([l (cond
[(vector? (syntax-e c))
(vector->short-list (syntax-e c) syntax-e)]
(vector->short-list (syntax-e c) syntax-e)]
[(struct? (syntax-e c))
(let ([l (vector->list (struct->vector (syntax-e c)))])
;; Need to build key datum, syntax-ize it internally, and
@ -599,7 +599,7 @@
p-color)
(set! src-col (+ src-col 1))
#;
(hash-set! next-col-map src-col dest-col))]
(hash-set! next-col-map src-col dest-col)))]
[(box? (syntax-e c))
(advance c init-line!)
(let ([quote-depth (to-quoted "`" qq? quote-depth out color? inc-src-col)])
@ -700,7 +700,8 @@
(hash? s)
(graph-defn? s)
(graph-reference? s)
(struct-proxy? s))
(struct-proxy? s)
(and qq? (identifier? c)))
(gen-typeset c multi-line? prefix1 prefix suffix color? qq?)
(typeset-atom c
(letrec ([mk

4
collects/scribblings/reference/chars.scrbl
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@ -217,8 +217,8 @@ category, which is @indexed-scheme['lu], @indexed-scheme['ll],
@indexed-scheme['cn].}
@defproc[(make-known-char-range-list)
(listof (list/c nonnegative-integer?
nonnegative-integer?
(listof (list/c exact-nonnegative-integer?
exact-nonnegative-integer?
boolean?))]{
Produces a list of three-element lists, where each three-element list

2
collects/scribblings/reference/data.scrbl
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@ -108,7 +108,7 @@ used as an ephemeron key (see @secref["ephemerons"]).
@scheme[(string->symbol str)], but the resulting symbol is a new
@tech{unreadable symbol}. Calling @scheme[string->unreadable-symbol]
twice with equivalent @scheme[str]s returns the same symbol, but
@scheme[read] never produces the symbol.}
@scheme[read] never produces the symbol.
@examples[(string->unreadable-symbol "Apple")
(eq? 'a (string->unreadable-symbol "a"))

6
collects/scribblings/reference/mz.ss
View File

@ -90,7 +90,7 @@
(provide exnraise Exn)
(provide margin-note/ref
refalso moreref Guide guideintro guidesecref
refalso moreref Guide guideintro guidealso guidesecref
HonuManual)
(define (margin-note/ref . s)
@ -117,6 +117,10 @@
(decode-content (append (list finger (guidesecref tag) " in " Guide " introduces ")
s
(list ".")))))
(define (guidealso tag)
(apply margin-note
(decode-content (append (list finger "See also " (guidesecref tag) " in " Guide ".")))))
(define Guide
(other-manual '(lib "scribblings/guide/guide.scrbl")))

6
collects/scribblings/reference/numbers.scrbl
View File

@ -453,7 +453,7 @@ used.
@defproc[(log [z number?]) number?]{ Returns the natural logarithm of
@scheme[z]. The result is normally inexact, but it is
@scheme[0] when @scheme[z] is an exact @scheme[1]. When @scheme[z]
is exact @scheme[0], @exnraise[exn:fail:contract:divide-by-zero].}
is exact @scheme[0], @exnraise[exn:fail:contract:divide-by-zero].
@mz-examples[(log (exp 1)) (log 2+3i) (log 1)]}
@ -883,7 +883,7 @@ numbers}, which are also known as @deftech{flonums}. Flonum-specific
operations provide can better performance when used consistently, and
they are as safe as generic operations like @scheme[+].
@margin-note{See @guidesecref["fixnums+flonums"].}
@guidealso["fixnums+flonums"]
@subsection{Flonum Arithmetic}
@ -1080,7 +1080,7 @@ Safe versions of @scheme[unsafe-fx=], @scheme[unsafe-fx<],
@note-lib[racket/math]
@defthing[pi real]{
@defthing[pi real?]{
An approximation to the ratio of a circle's circumference to its
diameter: @number->string[pi].}

21
collects/scribblings/reference/pairs.scrbl
View File

@ -26,7 +26,7 @@
@(define-syntax (defc_r stx)
(syntax-case stx ()
[(_ x ... example)
[(_ x ... example-arg)
(let ([xs (map syntax-e (syntax->list #'(x ...)))])
(let ([name (string->symbol
(string-append
@ -58,10 +58,25 @@
span)))
(datum->syntax #'here c
(list (syntax-source stx) 1 pos (add1 pos) 1))))]
[example (datum->syntax #'here (syntax->datum #'example))]
[example (let ([ex #'example-arg])
(datum->syntax #f
(list
(datum->syntax #f
name
(vector (syntax-source ex)
(syntax-line ex)
(- (syntax-column ex) 2)
(- (syntax-position ex) 2)
1))
ex)
(vector (syntax-source ex)
(syntax-line ex)
(- (syntax-column ex) 3)
(- (syntax-position ex) 3)
(+ (syntax-span ex) 4))))]
[equiv equiv])
#'(defproc (name [v contract]) any/c
"Returns " (to-element 'equiv) (mz-examples (name example))))))]))
"Returns " (to-element 'equiv) (mz-examples example)))))]))
@title[#:tag "pairs"]{Pairs and Lists}

368
collects/scribblings/reference/regexps.scrbl
View File

@ -22,13 +22,13 @@ matching character streams; if a byte regexp is used with a character
string, it matches bytes in the UTF-8 encoding of the string.
Regular expressions can be compiled into a @deftech{regexp value} for
repeated matches. The @scheme[regexp] and @scheme[byte-regexp]
repeated matches. The @racket[regexp] and @racket[byte-regexp]
procedures convert a string or byte string (respectively) into a
regexp value using one syntax of regular expressions that is most
compatible to @exec{egrep}. The @scheme[pregexp] and
@scheme[byte-pregexp] procedures produce a regexp value using a
compatible to @exec{egrep}. The @racket[pregexp] and
@racket[byte-pregexp] procedures produce a regexp value using a
slightly different syntax of regular expressions that is more
compatible with Perl. In addition, Scheme constants written with
compatible with Perl. In addition, Racket constants written with
@litchar{#rx} or @litchar{#px} (see @secref["reader"]) produce
compiled regexp values.
@ -43,22 +43,22 @@ The following syntax specifications describe the content of a string
that represents a regular expression. The syntax of the corresponding
string may involve extra escape characters. For example, the regular
expression @litchar{(.*)\1} can be represented with the string
@scheme["(.*)\\1"] or the regexp constant @scheme[#rx"(.*)\\1"]; the
@racket["(.*)\\1"] or the regexp constant @racket[#rx"(.*)\\1"]; the
@litchar{\} in the regular expression must be escaped to include it
in a string or regexp constant.
The @scheme[regexp] and @scheme[pregexp] syntaxes share a common core:
The @racket[regexp] and @racket[pregexp] syntaxes share a common core:
@common-table
The following completes the grammar for @scheme[regexp], which treats
The following completes the grammar for @racket[regexp], which treats
@litchar["{"] and @litchar["}"] as literals, @litchar{\} as a
literal within ranges, and @litchar{\} as a literal producer
outside of ranges.
@rx-table
The following completes the grammar for @scheme[pregexp], which uses
The following completes the grammar for @racket[pregexp], which uses
@litchar["{"] and @litchar["}"] bounded repetition and uses
@litchar{\} for meta-characters both inside and outside of ranges.
@ -101,26 +101,26 @@ arbitrarily large sequence).
@defproc[(regexp? [v any/c]) boolean?]{
Returns @scheme[#t] if @scheme[v] is a @tech{regexp value} created by
@scheme[regexp] or @scheme[pregexp], @scheme[#f] otherwise.}
Returns @racket[#t] if @racket[v] is a @tech{regexp value} created by
@racket[regexp] or @racket[pregexp], @racket[#f] otherwise.}
@defproc[(pregexp? [v any/c]) boolean?]{
Returns @scheme[#t] if @scheme[v] is a @tech{regexp value} created by
@scheme[pregexp] (not @scheme[regexp]), @scheme[#f] otherwise.}
Returns @racket[#t] if @racket[v] is a @tech{regexp value} created by
@racket[pregexp] (not @racket[regexp]), @racket[#f] otherwise.}
@defproc[(byte-regexp? [v any/c]) boolean?]{
Returns @scheme[#t] if @scheme[v] is a @tech{regexp value} created by
@scheme[byte-regexp] or @scheme[byte-pregexp], @scheme[#f] otherwise.}
Returns @racket[#t] if @racket[v] is a @tech{regexp value} created by
@racket[byte-regexp] or @racket[byte-pregexp], @racket[#f] otherwise.}
@defproc[(byte-pregexp? [v any/c]) boolean?]{
Returns @scheme[#t] if @scheme[v] is a @tech{regexp value} created by
@scheme[byte-pregexp] (not @scheme[byte-regexp]), @scheme[#f]
Returns @racket[#t] if @racket[v] is a @tech{regexp value} created by
@racket[byte-pregexp] (not @racket[byte-regexp]), @racket[#f]
otherwise.}
@ -134,7 +134,7 @@ is used multiple times, it is faster to compile the string once to a
@tech{regexp value} and use it for repeated matches instead of using the
string each time.
The @scheme[object-name] procedure returns
The @racket[object-name] procedure returns
the source string for a @tech{regexp value}.
@examples[
@ -144,10 +144,10 @@ the source string for a @tech{regexp value}.
@defproc[(pregexp [string string?]) pregexp?]{
Like @scheme[regexp], except that it uses a slightly different syntax
Like @racket[regexp], except that it uses a slightly different syntax
(see @secref["regexp-syntax"]). The result can be used with
@scheme[regexp-match], etc., just like the result from
@scheme[regexp].
@racket[regexp-match], etc., just like the result from
@racket[regexp].
@examples[
(pregexp "ap*le")
@ -160,7 +160,7 @@ Takes a byte-string representation of a regular expression (using the
syntax in @secref["regexp-syntax"]) and compiles it into a
byte-@tech{regexp value}.
The @scheme[object-name] procedure
The @racket[object-name] procedure
returns the source byte string for a @tech{regexp value}.
@examples[
@ -171,10 +171,10 @@ returns the source byte string for a @tech{regexp value}.
@defproc[(byte-pregexp [bstr bytes?]) byte-pregexp?]{
Like @scheme[byte-regexp], except that it uses a slightly different
Like @racket[byte-regexp], except that it uses a slightly different
syntax (see @secref["regexp-syntax"]). The result can be used with
@scheme[regexp-match], etc., just like the result from
@scheme[byte-regexp].
@racket[regexp-match], etc., just like the result from
@racket[byte-regexp].
@examples[
(byte-pregexp #"ap*le")
@ -183,11 +183,11 @@ syntax (see @secref["regexp-syntax"]). The result can be used with
@defproc*[([(regexp-quote [str string?] [case-sensitive? any/c #t]) string?]
[(regexp-quote [bstr bytes?] [case-sensitive? any/c #t]) bytes?])]{
Produces a string or byte string suitable for use with @scheme[regexp]
to match the literal sequence of characters in @scheme[str] or
sequence of bytes in @scheme[bstr]. If @scheme[case-sensitive?] is
true, the resulting regexp matches letters in @scheme[str] or
@scheme[bytes] case-insensitively, otherwise it matches
Produces a string or byte string suitable for use with @racket[regexp]
to match the literal sequence of characters in @racket[str] or
sequence of bytes in @racket[bstr]. If @racket[case-sensitive?] is
true, the resulting regexp matches letters in @racket[str] or
@racket[bytes] case-insensitively, otherwise it matches
case-sensitively.
@examples[
@ -198,7 +198,7 @@ case-sensitively.
@defproc[(regexp-max-lookbehind [pattern (or/c regexp? byte-regexp?)])
exact-nonnegative-integer?]{
Returns the maximum number of bytes that @scheme[pattern] may consult
Returns the maximum number of bytes that @racket[pattern] may consult
before the starting position of a match to determine the match. For
example, the pattern @litchar{(?<=abc)d} consults three bytes
preceding a matching @litchar{d}, while @litchar{e(?<=a..)d} consults
@ -220,93 +220,93 @@ the start of the input or of a line.}
(or/c #f (cons/c string? (listof (or/c string? #f))))
(or/c #f (cons/c bytes? (listof (or/c bytes? #f)))))]{
Attempts to match @scheme[pattern] (a string, byte string, @tech{regexp
value}, or byte-@tech{regexp value}) once to a portion of @scheme[input]. The
matcher finds a portion of @scheme[input] that matches and is closest
to the start of the input (after @scheme[start-pos]).
Attempts to match @racket[pattern] (a string, byte string, @tech{regexp
value}, or byte-@tech{regexp value}) once to a portion of @racket[input]. The
matcher finds a portion of @racket[input] that matches and is closest
to the start of the input (after @racket[start-pos]).
The optional @scheme[start-pos] and @scheme[end-pos] arguments select
a portion of @scheme[input] for matching; the default is the entire
string or the stream up to an end-of-file. When @scheme[input] is a
string, @scheme[start-pos] is a character position; when
@scheme[input] is a byte string, then @scheme[start-pos] is a byte
position; and when @scheme[input] is an input port, @scheme[start-pos]
The optional @racket[start-pos] and @racket[end-pos] arguments select
a portion of @racket[input] for matching; the default is the entire
string or the stream up to an end-of-file. When @racket[input] is a
string, @racket[start-pos] is a character position; when
@racket[input] is a byte string, then @racket[start-pos] is a byte
position; and when @racket[input] is an input port, @racket[start-pos]
is the number of bytes to skip before starting to match. The
@scheme[end-pos] argument can be @scheme[#f], which corresponds to the
@racket[end-pos] argument can be @racket[#f], which corresponds to the
end of the string or the end-of-file in the stream; otherwise, it is a
character or byte position, like @scheme[start-pos]. If @scheme[input]
character or byte position, like @racket[start-pos]. If @racket[input]
is an input port, and if the end-of-file is reached before
@scheme[start-pos] bytes are skipped, then the match fails.
@racket[start-pos] bytes are skipped, then the match fails.
In @scheme[pattern], a start-of-string @litchar{^} refers to the first
position of @scheme[input] after @scheme[start-pos], assuming that
@scheme[input-prefix] is @scheme[#""]. The end-of-input @litchar{$}
refers to the @scheme[end-pos]th position or (in the case of an input
In @racket[pattern], a start-of-string @litchar{^} refers to the first
position of @racket[input] after @racket[start-pos], assuming that
@racket[input-prefix] is @racket[#""]. The end-of-input @litchar{$}
refers to the @racket[end-pos]th position or (in the case of an input
port) the end of file, whichever comes first, assuming that
@scheme[output-prefix] is @scheme[#f].
@racket[output-prefix] is @racket[#f].
The @scheme[input-prefix] specifies bytes that effectively precede
@scheme[input] for the purposes of @litchar{^} and other look-behind
matching. For example, a @scheme[#""] prefix means that @litchar{^}
matches at the beginning of the stream, while a @scheme[#"\n"]
@scheme[input-prefix] means that a start-of-line @litchar{^} can match
The @racket[input-prefix] specifies bytes that effectively precede
@racket[input] for the purposes of @litchar{^} and other look-behind
matching. For example, a @racket[#""] prefix means that @litchar{^}
matches at the beginning of the stream, while a @racket[#"\n"]
@racket[input-prefix] means that a start-of-line @litchar{^} can match
the beginning of the input, while a start-of-file @litchar{^} cannot.
If the match fails, @scheme[#f] is returned. If the match succeeds, a
list containing strings or byte string, and possibly @scheme[#f], is
returned. The list contains strings only if @scheme[input] is a string
and @scheme[pattern] is not a byte regexp. Otherwise, the list
If the match fails, @racket[#f] is returned. If the match succeeds, a
list containing strings or byte string, and possibly @racket[#f], is
returned. The list contains strings only if @racket[input] is a string
and @racket[pattern] is not a byte regexp. Otherwise, the list
contains byte strings (substrings of the UTF-8 encoding of
@scheme[input], if @scheme[input] is a string).
@racket[input], if @racket[input] is a string).
The first [byte] string in a result list is the portion of
@scheme[input] that matched @scheme[pattern]. If two portions of
@scheme[input] can match @scheme[pattern], then the match that starts
@racket[input] that matched @racket[pattern]. If two portions of
@racket[input] can match @racket[pattern], then the match that starts
earliest is found.
Additional [byte] strings are returned in the list if @scheme[pattern]
Additional [byte] strings are returned in the list if @racket[pattern]
contains parenthesized sub-expressions (but not when the open
parenthesis is followed by @litchar{?:}). Matches for the
sub-expressions are provided in the order of the opening parentheses
in @scheme[pattern]. When sub-expressions occur in branches of an
in @racket[pattern]. When sub-expressions occur in branches of an
@litchar{|} ``or'' pattern, in a @litchar{*} ``zero or more''
pattern, or other places where the overall pattern can succeed without
a match for the sub-expression, then a @scheme[#f] is returned for the
a match for the sub-expression, then a @racket[#f] is returned for the
sub-expression if it did not contribute to the final match. When a
single sub-expression occurs within a @litchar{*} ``zero or more''
pattern or other multiple-match positions, then the rightmost match
associated with the sub-expression is returned in the list.
If the optional @scheme[output-port] is provided as an output port,
the part of @scheme[input] from its beginning (not @scheme[start-pos])
that precedes the match is written to the port. All of @scheme[input]
up to @scheme[end-pos] is written to the port if no match is
found. This functionality is most useful when @scheme[input] is an
If the optional @racket[output-port] is provided as an output port,
the part of @racket[input] from its beginning (not @racket[start-pos])
that precedes the match is written to the port. All of @racket[input]
up to @racket[end-pos] is written to the port if no match is
found. This functionality is most useful when @racket[input] is an
input port.
When matching an input port, a match failure reads up to
@scheme[end-pos] bytes (or end-of-file), even if @scheme[pattern]
@racket[end-pos] bytes (or end-of-file), even if @racket[pattern]
begins with a start-of-string @litchar{^}; see also
@scheme[regexp-try-match]. On success, all bytes up to and including
@racket[regexp-try-match]. On success, all bytes up to and including
the match are eventually read from the port, but matching proceeds by
first peeking bytes from the port (using @scheme[peek-bytes-avail!]),
first peeking bytes from the port (using @racket[peek-bytes-avail!]),
and then (re-)reading matching bytes to discard them after the match
result is determined. Non-matching bytes may be read and discarded
before the match is determined. The matcher peeks in blocking mode
only as far as necessary to determine a match, but it may peek extra
bytes to fill an internal buffer if immediately available (i.e.,
without blocking). Greedy repeat operators in @scheme[pattern], such
without blocking). Greedy repeat operators in @racket[pattern], such
as @litchar{*} or @litchar{+}, tend to force reading the entire
content of the port (up to @scheme[end-pos]) to determine a match.
content of the port (up to @racket[end-pos]) to determine a match.
If the input port is read simultaneously by another thread, or if the
port is a custom port with inconsistent reading and peeking procedures
(see @secref["customport"]), then the bytes that are peeked and
used for matching may be different than the bytes read and discarded
after the match completes; the matcher inspects only the peeked
bytes. To avoid such interleaving, use @scheme[regexp-match-peek]
(with a @scheme[progress-evt] argument) followed by
@scheme[port-commit-peeked].
bytes. To avoid such interleaving, use @racket[regexp-match-peek]
(with a @racket[progress-evt] argument) followed by
@racket[port-commit-peeked].
@examples[
(regexp-match #rx"x." "12x4x6")
@ -329,27 +329,27 @@ bytes. To avoid such interleaving, use @scheme[regexp-match-peek]
(listof string?)
(listof bytes?))]{
Like @scheme[regexp-match], but the result is a list of strings or
Like @racket[regexp-match], but the result is a list of strings or
byte strings corresponding to a sequence of matches of
@scheme[pattern] in @scheme[input]. (Unlike @scheme[regexp-match],
results for parenthesized sub-patterns in @scheme[pattern] are not
@racket[pattern] in @racket[input]. (Unlike @racket[regexp-match],
results for parenthesized sub-patterns in @racket[pattern] are not
returned.)
The @scheme[pattern] is used in order to find matches, where each
The @racket[pattern] is used in order to find matches, where each
match attempt starts at the end of the last match, and @litchar{^} is
allowed to match the beginning of the input (if @scheme[input-prefix]
is @scheme[#""]) only for the first match. Empty matches are handled
allowed to match the beginning of the input (if @racket[input-prefix]
is @racket[#""]) only for the first match. Empty matches are handled
like other matches, returning a zero-length string or byte sequence
(they are more useful in the complementing @scheme[regexp-split]
function), but @scheme[pattern] is restricted from matching an empty
(they are more useful in the complementing @racket[regexp-split]
function), but @racket[pattern] is restricted from matching an empty
sequence immediately after an empty match.
If @scheme[input] contains no matches (in the range @scheme[start-pos]
to @scheme[end-pos]), @scheme[null] is returned. Otherwise, each item
If @racket[input] contains no matches (in the range @racket[start-pos]
to @racket[end-pos]), @racket[null] is returned. Otherwise, each item
in the resulting list is a distinct substring or byte sequence from
@scheme[input] that matches @scheme[pattern]. The @scheme[end-pos]
argument can be @scheme[#f] to match to the end of @scheme[input]
(which corresponds to an end-of-file if @scheme[input] is an input
@racket[input] that matches @racket[pattern]. The @racket[end-pos]
argument can be @racket[#f] to match to the end of @racket[input]
(which corresponds to an end-of-file if @racket[input] is an input
port).
@examples[
@ -369,12 +369,12 @@ port).
(or/c #f (cons/c string? (listof (or/c string? #f))))
(or/c #f (cons/c bytes? (listof (or/c bytes? #f)))))]{
Like @scheme[regexp-match] on input ports, except that if the match
fails, no characters are read and discarded from @scheme[in].
Like @racket[regexp-match] on input ports, except that if the match
fails, no characters are read and discarded from @racket[in].
This procedure is especially useful with a @scheme[pattern] that
begins with a start-of-string @litchar{^} or with a non-@scheme[#f]
@scheme[end-pos], since each limits the amount of peeking into the
This procedure is especially useful with a @racket[pattern] that
begins with a start-of-string @litchar{^} or with a non-@racket[#f]
@racket[end-pos], since each limits the amount of peeking into the
port. Otherwise, beware that a large portion of the stream may be
peeked (and therefore pulled into memory) before the match succeeds or
fails.}
@ -393,19 +393,19 @@ fails.}
#f)))
#f)]{
Like @scheme[regexp-match], but returns a list of number pairs (and
@scheme[#f]) instead of a list of strings. Each pair of numbers refers
to a range of characters or bytes in @scheme[input]. If the result for
the same arguments with @scheme[regexp-match] would be a list of byte
Like @racket[regexp-match], but returns a list of number pairs (and
@racket[#f]) instead of a list of strings. Each pair of numbers refers
to a range of characters or bytes in @racket[input]. If the result for
the same arguments with @racket[regexp-match] would be a list of byte
strings, the resulting ranges correspond to byte ranges; in that case,
if @scheme[input] is a character string, the byte ranges correspond to
if @racket[input] is a character string, the byte ranges correspond to
bytes in the UTF-8 encoding of the string.
Range results are returned in a @scheme[substring]- and
@scheme[subbytes]-compatible manner, independent of
@scheme[start-pos]. In the case of an input port, the returned
Range results are returned in a @racket[substring]- and
@racket[subbytes]-compatible manner, independent of
@racket[start-pos]. In the case of an input port, the returned
positions indicate the number of bytes that were read, including
@scheme[start-pos], before the first matching byte.
@racket[start-pos], before the first matching byte.
@examples[
(regexp-match-positions #rx"x." "12x4x6")
@ -421,8 +421,8 @@ positions indicate the number of bytes that were read, including
(listof (cons/c exact-nonnegative-integer?
exact-nonnegative-integer?))]{
Like @scheme[regexp-match-positions], but returns multiple matches
like @scheme[regexp-match*].
Like @racket[regexp-match-positions], but returns multiple matches
like @racket[regexp-match*].
@examples[
(regexp-match-positions #rx"x." "12x4x6")
@ -437,8 +437,8 @@ like @scheme[regexp-match*].
[input-prefix bytes? #""])
boolean?]{
Like @scheme[regexp-match], but returns merely @scheme[#t] when the
match succeeds, @scheme[#f] otherwise.
Like @racket[regexp-match], but returns merely @racket[#t] when the
match succeeds, @racket[#f] otherwise.
@examples[
(regexp-match? #rx"x." "12x4x6")
@ -450,8 +450,8 @@ match succeeds, @scheme[#f] otherwise.
[input (or/c string? bytes? input-port?)])
boolean?]{
Like @scheme[regexp-match?], but @scheme[#t] is only returned when the
entire content of @scheme[input] matches @scheme[pattern].
Like @racket[regexp-match?], but @racket[#t] is only returned when the
entire content of @racket[input] matches @racket[pattern].
@examples[
(regexp-match-exact? #rx"x." "12x4x6")
@ -468,15 +468,15 @@ entire content of @scheme[input] matches @scheme[pattern].
(or/c (cons/c bytes? (listof (or/c bytes? #f)))
#f)]{
Like @scheme[regexp-match] on input ports, but only peeks bytes from
@scheme[input] instead of reading them. Furthermore, instead of
Like @racket[regexp-match] on input ports, but only peeks bytes from
@racket[input] instead of reading them. Furthermore, instead of
an output port, the last optional argument is a progress event for
@scheme[input] (see @scheme[port-progress-evt]). If @scheme[progress]
becomes ready, then the match stops peeking from @scheme[input]
and returns @scheme[#f]. The @scheme[progress] argument can be
@scheme[#f], in which case the peek may continue with inconsistent
@racket[input] (see @racket[port-progress-evt]). If @racket[progress]
becomes ready, then the match stops peeking from @racket[input]
and returns @racket[#f]. The @racket[progress] argument can be
@racket[#f], in which case the peek may continue with inconsistent
information if another process meanwhile reads from
@scheme[input].
@racket[input].
@examples[
(define p (open-input-string "a abcd"))
@ -502,9 +502,9 @@ information if another process meanwhile reads from
#f)))
#f)]{
Like @scheme[regexp-match-positions] on input ports, but only peeks
bytes from @scheme[input] instead of reading them, and with a
@scheme[progress] argument like @scheme[regexp-match-peek].}
Like @racket[regexp-match-positions] on input ports, but only peeks
bytes from @racket[input] instead of reading them, and with a
@racket[progress] argument like @racket[regexp-match-peek].}
@defproc[(regexp-match-peek-immediate [pattern (or/c string? bytes? regexp? byte-regexp?)]
@ -516,10 +516,10 @@ bytes from @scheme[input] instead of reading them, and with a
(or/c (cons/c bytes? (listof (or/c bytes? #f)))
#f)]{
Like @scheme[regexp-match-peek], but it attempts to match only bytes
that are available from @scheme[input] without blocking. The
Like @racket[regexp-match-peek], but it attempts to match only bytes
that are available from @racket[input] without blocking. The
match fails if not-yet-available characters might be used to match
@scheme[pattern].}
@racket[pattern].}
@defproc[(regexp-match-peek-positions-immediate [pattern (or/c string? bytes? regexp? byte-regexp?)]
@ -535,10 +535,10 @@ match fails if not-yet-available characters might be used to match
#f)))
#f)]{
Like @scheme[regexp-match-peek-positions], but it attempts to match
only bytes that are available from @scheme[input] without
Like @racket[regexp-match-peek-positions], but it attempts to match
only bytes that are available from @racket[input] without
blocking. The match fails if not-yet-available characters might be
used to match @scheme[pattern].}
used to match @racket[pattern].}
@defproc[(regexp-match-peek-positions* [pattern (or/c string? bytes? regexp? byte-regexp?)]
@ -549,8 +549,8 @@ used to match @scheme[pattern].}
(listof (cons/c exact-nonnegative-integer?
exact-nonnegative-integer?))]{
Like @scheme[regexp-match-peek-positions], but returns multiple matches like
@scheme[regexp-match*].}
Like @racket[regexp-match-peek-positions], but returns multiple matches like
@racket[regexp-match*].}
@defproc[(regexp-match/end [pattern (or/c string? bytes? regexp? byte-regexp?)]
[input (or/c string? bytes? input-port?)]
@ -566,15 +566,15 @@ Like @scheme[regexp-match-peek-positions], but returns multiple matches like
(or/c #f (cons/c bytes? (listof (or/c bytes? #f)))))
(or/c #f bytes?))]{
Like @scheme[regexp-match], but with a second result: a byte
string of up to @scheme[count] bytes that correspond to the input
(possibly including the @scheme[input-prefix]) leading to the end of
the match; the second result is @scheme[#f] if no match is found.
Like @racket[regexp-match], but with a second result: a byte
string of up to @racket[count] bytes that correspond to the input
(possibly including the @racket[input-prefix]) leading to the end of
the match; the second result is @racket[#f] if no match is found.
The second result can be useful as an @scheme[input-prefix] for
attempting a second match on @scheme[input] starting from the end of
the first match. In that case, use @scheme[regexp-max-lookbehind]
to determine an appropriate value for @scheme[count].}
The second result can be useful as an @racket[input-prefix] for
attempting a second match on @racket[input] starting from the end of
the first match. In that case, use @racket[regexp-max-lookbehind]
to determine an appropriate value for @racket[count].}
@deftogether[(
@defproc[(regexp-match-positions/end [pattern (or/c string? bytes? regexp? byte-regexp?)]
@ -618,8 +618,8 @@ to determine an appropriate value for @scheme[count].}
(or/c #f bytes?))]
)]{
Like @scheme[regexp-match-positions], etc., but with a second result
like @scheme[regexp-match/end].}
Like @racket[regexp-match-positions], etc., but with a second result
like @racket[regexp-match/end].}
@;------------------------------------------------------------------------
@section{Regexp Splitting}
@ -634,24 +634,24 @@ like @scheme[regexp-match/end].}
(cons/c string? (listof string?))
(cons/c bytes? (listof bytes?)))]{
The complement of @scheme[regexp-match*]: the result is a list of
strings (if @scheme[pattern] is a string or character regexp and
@scheme[input] is a string) or byte strings (otherwise) from in
@scheme[input] that are separated by matches to
@scheme[pattern]. Adjacent matches are separated with @scheme[""] or
@scheme[#""]. Zero-length matches are treated the same as for
@scheme[regexp-match*].
The complement of @racket[regexp-match*]: the result is a list of
strings (if @racket[pattern] is a string or character regexp and
@racket[input] is a string) or byte strings (otherwise) from in
@racket[input] that are separated by matches to
@racket[pattern]. Adjacent matches are separated with @racket[""] or
@racket[#""]. Zero-length matches are treated the same as for
@racket[regexp-match*].
If @scheme[input] contains no matches (in the range @scheme[start-pos]
to @scheme[end-pos]), the result is a list containing @scheme[input]'s
content (from @scheme[start-pos] to @scheme[end-pos]) as a single
element. If a match occurs at the beginning of @scheme[input] (at
@scheme[start-pos]), the resulting list will start with an empty
If @racket[input] contains no matches (in the range @racket[start-pos]
to @racket[end-pos]), the result is a list containing @racket[input]'s
content (from @racket[start-pos] to @racket[end-pos]) as a single
element. If a match occurs at the beginning of @racket[input] (at
@racket[start-pos]), the resulting list will start with an empty
string or byte string, and if a match occurs at the end (at
@scheme[end-pos]), the list will end with an empty string or byte
string. The @scheme[end-pos] argument can be @scheme[#f], in which
case splitting goes to the end of @scheme[input] (which corresponds to
an end-of-file if @scheme[input] is an input port).
@racket[end-pos]), the list will end with an empty string or byte
string. The @racket[end-pos] argument can be @racket[#f], in which
case splitting goes to the end of @racket[input] (which corresponds to
an end-of-file if @racket[input] is an input port).
@examples[
(regexp-split #rx" +" "12 34")
@ -675,52 +675,52 @@ an end-of-file if @scheme[input] is an input port).
string?
bytes?)]{
Performs a match using @scheme[pattern] on @scheme[input], and then
Performs a match using @racket[pattern] on @racket[input], and then
returns a string or byte string in which the matching portion of
@scheme[input] is replaced with @scheme[insert]. If @scheme[pattern]
matches no part of @scheme[input], then @scheme[iput] is returned
@racket[input] is replaced with @racket[insert]. If @racket[pattern]
matches no part of @racket[input], then @racket[iput] is returned
unmodified.
The @scheme[insert] argument can be either a (byte) string, or a
The @racket[insert] argument can be either a (byte) string, or a
function that returns a (byte) string. In the latter case, the
function is applied on the list of values that @scheme[regexp-match]
function is applied on the list of values that @racket[regexp-match]
would return (i.e., the first argument is the complete match, and then
one argument for each parenthesized sub-expression) to obtain a
replacement (byte) string.
If @scheme[pattern] is a string or character regexp and @scheme[input]
is a string, then @scheme[insert] must be a string or a procedure that
accept strings, and the result is a string. If @scheme[pattern] is a
byte string or byte regexp, or if @scheme[input] is a byte string,
then @scheme[insert] as a string is converted to a byte string,
@scheme[insert] as a procedure is called with a byte string, and the
If @racket[pattern] is a string or character regexp and @racket[input]
is a string, then @racket[insert] must be a string or a procedure that
accept strings, and the result is a string. If @racket[pattern] is a
byte string or byte regexp, or if @racket[input] is a byte string,
then @racket[insert] as a string is converted to a byte string,
@racket[insert] as a procedure is called with a byte string, and the
result is a byte string.
If @scheme[insert] contains @litchar{&}, then @litchar{&}
is replaced with the matching portion of @scheme[input] before it is
substituted into the match's place. If @scheme[insert] contains
If @racket[insert] contains @litchar{&}, then @litchar{&}
is replaced with the matching portion of @racket[input] before it is
substituted into the match's place. If @racket[insert] contains
@litchar{\}@nonterm{n} for some integer @nonterm{n}, then it is
replaced with the @nonterm{n}th matching sub-expression from
@scheme[input]. A @litchar{&} and @litchar{\0} are synonymous. If
@racket[input]. A @litchar{&} and @litchar{\0} are synonymous. If
the @nonterm{n}th sub-expression was not used in the match, or if
@nonterm{n} is greater than the number of sub-expressions in
@scheme[pattern], then @litchar{\}@nonterm{n} is replaced with the
@racket[pattern], then @litchar{\}@nonterm{n} is replaced with the
empty string.
To substitute a literal @litchar{&} or @litchar{\}, use
@litchar{\&} and @litchar{\\}, respectively, in
@scheme[insert]. A @litchar{\$} in @scheme[insert] is
@racket[insert]. A @litchar{\$} in @racket[insert] is
equivalent to an empty sequence; this can be used to terminate a
number @nonterm{n} following @litchar{\}. If a @litchar{\} in
@scheme[insert] is followed by anything other than a digit,
@racket[insert] is followed by anything other than a digit,
@litchar{&}, @litchar{\}, or @litchar{$}, then the @litchar{\}
by itself is treated as @litchar{\0}.
Note that the @litchar{\} described in the previous paragraphs is a
character or byte of @scheme[input]. To write such an @scheme[input]
as a Scheme string literal, an escaping @litchar{\} is needed
before the @litchar{\}. For example, the Scheme constant
@scheme["\\1"] is @litchar{\1}.
character or byte of @racket[input]. To write such an @racket[input]
as a Racket string literal, an escaping @litchar{\} is needed
before the @litchar{\}. For example, the Racket constant
@racket["\\1"] is @litchar{\1}.
@examples[
(regexp-replace "mi" "mi casa" "su")
@ -740,13 +740,13 @@ before the @litchar{\}. For example, the Scheme constant
[input-prefix bytes? #""])
(or/c string? bytes?)]{
Like @scheme[regexp-replace], except that every instance of
@scheme[pattern] in @scheme[input] is replaced with @scheme[insert],
Like @racket[regexp-replace], except that every instance of
@racket[pattern] in @racket[input] is replaced with @racket[insert],
instead of just the first match. Only non-overlapping instances of
@scheme[pattern] in @scheme[input] are replaced, so instances of
@scheme[pattern] within inserted strings are @italic{not} replaced
@racket[pattern] in @racket[input] are replaced, so instances of
@racket[pattern] within inserted strings are @italic{not} replaced
recursively. Zero-length matches are treated the same as in
@scheme[regexp-match*].
@racket[regexp-match*].
@examples[
(regexp-replace* "([Mm])i ([a-zA-Z]*)" "mi cerveza Mi Mi Mi"
@ -762,10 +762,10 @@ recursively. Zero-length matches are treated the same as in
[(regexp-replace-quote [bstr bytes?]) bytes?])]{
Produces a string suitable for use as the third argument to
@scheme[regexp-replace] to insert the literal sequence of characters
in @scheme[str] or bytes in @scheme[bstr] as a replacement.
Concretely, every @litchar{\} and @litchar{&} in @scheme[str] or
@scheme[bstr] is protected by a quoting @litchar{\}.
@racket[regexp-replace] to insert the literal sequence of characters
in @racket[str] or bytes in @racket[bstr] as a replacement.
Concretely, every @litchar{\} and @litchar{&} in @racket[str] or
@racket[bstr] is protected by a quoting @litchar{\}.
@examples[
(regexp-replace "UT" "Go UT!" "A&M")

5
collects/scribblings/reference/sequences.scrbl
View File

@ -331,8 +331,9 @@ the generator runs out of values to yield, the last value it computed
will be returned for future invocations of the generator. Generators
can be safely nested.
Note: the first form must be @scheme[()], and in the future this will
hold argument names that are used in the initial generator call.
Note: The first form must be @scheme[()]. In the future, the
@scheme[()] position will hold argument names that are used for the
initial generator call.
@examples[#:eval (generator-eval)
(define g (generator ()

5
collects/tests/mzscheme/set.ss
View File

@ -50,6 +50,11 @@
(test #t set-member? (set-remove s 5) 3)
(test #f set-member? (set-remove s 3) 3)
(test #t set-subset? s (set 1 3))
(test #t set-subset? s (set 1 2 3))
(test #f set-subset? s (set 1 4))
(test #t set-subset? s (set))
(test 3 set-count (set-union s))
(test 6 set-count (set-union s (set 3 4 5 6)))
(test 6 set-count (set-union (set 3 4 5 6) s))