Compare commits
48 Commits
Matthew Butterick
@ -0,0 +1,43 @@
|
||||
name: CI
|
||||
|
||||
on: [push, pull_request]
|
||||
|
||||
jobs:
|
||||
run:
|
||||
name: "Build using Racket '${{ matrix.racket-version }}' (${{ matrix.racket-variant }})"
|
||||
runs-on: ubuntu-latest
|
||||
strategy:
|
||||
fail-fast: false
|
||||
matrix:
|
||||
racket-version: ["6.6", "6.7", "6.8", "6.9", "6.10.1", "6.11", "6.12", "7.0", "7.1", "7.2", "7.3", "7.4", "7.5", "7.6", "7.7", "7.8", "7.9", "current"]
|
||||
racket-variant: ["BC", "CS"]
|
||||
# CS builds are only provided for versions 7.4 and up so avoid
|
||||
# running the job for prior versions.
|
||||
exclude:
|
||||
- {racket-version: "6.6", racket-variant: "CS"}
|
||||
- {racket-version: "6.7", racket-variant: "CS"}
|
||||
- {racket-version: "6.8", racket-variant: "CS"}
|
||||
- {racket-version: "6.9", racket-variant: "CS"}
|
||||
- {racket-version: "6.10.1", racket-variant: "CS"}
|
||||
- {racket-version: "6.11", racket-variant: "CS"}
|
||||
- {racket-version: "6.12", racket-variant: "CS"}
|
||||
- {racket-version: "7.0", racket-variant: "CS"}
|
||||
- {racket-version: "7.1", racket-variant: "CS"}
|
||||
- {racket-version: "7.2", racket-variant: "CS"}
|
||||
- {racket-version: "7.3", racket-variant: "CS"}
|
||||
|
||||
steps:
|
||||
- name: Checkout
|
||||
uses: actions/checkout@master
|
||||
|
||||
- uses: Bogdanp/setup-racket@v0.11
|
||||
with:
|
||||
distribution: 'full'
|
||||
version: ${{ matrix.racket-version }}
|
||||
variant: ${{ matrix.racket-variant }}
|
||||
|
||||
- name: Install Txexpr and its dependencies
|
||||
run: raco pkg install --auto --batch
|
||||
|
||||
- name: Run the tests
|
||||
run: xvfb-run raco test -j 4 -p txexpr
|
||||
@ -1,37 +0,0 @@
|
||||
# adapted from
|
||||
# https://github.com/greghendershott/travis-racket/blob/master/.travis.yml
|
||||
# Thanks Greg!
|
||||
|
||||
language: c
|
||||
sudo: false
|
||||
|
||||
env:
|
||||
global:
|
||||
- RACKET_DIR=~/racket
|
||||
matrix:
|
||||
- RACKET_VERSION=6.0
|
||||
- RACKET_VERSION=6.1
|
||||
- RACKET_VERSION=6.2
|
||||
- RACKET_VERSION=6.3
|
||||
- RACKET_VERSION=6.4
|
||||
- RACKET_VERSION=HEAD
|
||||
|
||||
# You may want to test against certain versions of Racket, without
|
||||
# having them count against the overall success/failure.
|
||||
matrix:
|
||||
allow_failures:
|
||||
# - env: RACKET_VERSION=HEAD
|
||||
# Fast finish: Overall build result is determined as soon as any of
|
||||
# its rows have failed, or, all of its rows that aren't allowed to
|
||||
# fail have succeeded.
|
||||
fast_finish: true
|
||||
|
||||
before_install:
|
||||
- git clone https://github.com/mbutterick/travis-racket.git
|
||||
- cat travis-racket/install-racket.sh | bash # pipe to bash not sh!
|
||||
- export PATH="${RACKET_DIR}/bin:${PATH}" #install-racket.sh can't set for us
|
||||
|
||||
script:
|
||||
- cd .. # Travis did a cd into the dir. Back up, for the next:
|
||||
- raco pkg install --deps search-auto --link txexpr
|
||||
- raco test -p txexpr
|
||||
@ -1,165 +0,0 @@
|
||||
GNU LESSER GENERAL PUBLIC LICENSE
|
||||
Version 3, 29 June 2007
|
||||
|
||||
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
|
||||
This version of the GNU Lesser General Public License incorporates
|
||||
the terms and conditions of version 3 of the GNU General Public
|
||||
License, supplemented by the additional permissions listed below.
|
||||
|
||||
0. Additional Definitions.
|
||||
|
||||
As used herein, "this License" refers to version 3 of the GNU Lesser
|
||||
General Public License, and the "GNU GPL" refers to version 3 of the GNU
|
||||
General Public License.
|
||||
|
||||
"The Library" refers to a covered work governed by this License,
|
||||
other than an Application or a Combined Work as defined below.
|
||||
|
||||
An "Application" is any work that makes use of an interface provided
|
||||
by the Library, but which is not otherwise based on the Library.
|
||||
Defining a subclass of a class defined by the Library is deemed a mode
|
||||
of using an interface provided by the Library.
|
||||
|
||||
A "Combined Work" is a work produced by combining or linking an
|
||||
Application with the Library. The particular version of the Library
|
||||
with which the Combined Work was made is also called the "Linked
|
||||
Version".
|
||||
|
||||
The "Minimal Corresponding Source" for a Combined Work means the
|
||||
Corresponding Source for the Combined Work, excluding any source code
|
||||
for portions of the Combined Work that, considered in isolation, are
|
||||
based on the Application, and not on the Linked Version.
|
||||
|
||||
The "Corresponding Application Code" for a Combined Work means the
|
||||
object code and/or source code for the Application, including any data
|
||||
and utility programs needed for reproducing the Combined Work from the
|
||||
Application, but excluding the System Libraries of the Combined Work.
|
||||
|
||||
1. Exception to Section 3 of the GNU GPL.
|
||||
|
||||
You may convey a covered work under sections 3 and 4 of this License
|
||||
without being bound by section 3 of the GNU GPL.
|
||||
|
||||
2. Conveying Modified Versions.
|
||||
|
||||
If you modify a copy of the Library, and, in your modifications, a
|
||||
facility refers to a function or data to be supplied by an Application
|
||||
that uses the facility (other than as an argument passed when the
|
||||
facility is invoked), then you may convey a copy of the modified
|
||||
version:
|
||||
|
||||
a) under this License, provided that you make a good faith effort to
|
||||
ensure that, in the event an Application does not supply the
|
||||
function or data, the facility still operates, and performs
|
||||
whatever part of its purpose remains meaningful, or
|
||||
|
||||
b) under the GNU GPL, with none of the additional permissions of
|
||||
this License applicable to that copy.
|
||||
|
||||
3. Object Code Incorporating Material from Library Header Files.
|
||||
|
||||
The object code form of an Application may incorporate material from
|
||||
a header file that is part of the Library. You may convey such object
|
||||
code under terms of your choice, provided that, if the incorporated
|
||||
material is not limited to numerical parameters, data structure
|
||||
layouts and accessors, or small macros, inline functions and templates
|
||||
(ten or fewer lines in length), you do both of the following:
|
||||
|
||||
a) Give prominent notice with each copy of the object code that the
|
||||
Library is used in it and that the Library and its use are
|
||||
covered by this License.
|
||||
|
||||
b) Accompany the object code with a copy of the GNU GPL and this license
|
||||
document.
|
||||
|
||||
4. Combined Works.
|
||||
|
||||
You may convey a Combined Work under terms of your choice that,
|
||||
taken together, effectively do not restrict modification of the
|
||||
portions of the Library contained in the Combined Work and reverse
|
||||
engineering for debugging such modifications, if you also do each of
|
||||
the following:
|
||||
|
||||
a) Give prominent notice with each copy of the Combined Work that
|
||||
the Library is used in it and that the Library and its use are
|
||||
covered by this License.
|
||||
|
||||
b) Accompany the Combined Work with a copy of the GNU GPL and this license
|
||||
document.
|
||||
|
||||
c) For a Combined Work that displays copyright notices during
|
||||
execution, include the copyright notice for the Library among
|
||||
these notices, as well as a reference directing the user to the
|
||||
copies of the GNU GPL and this license document.
|
||||
|
||||
d) Do one of the following:
|
||||
|
||||
0) Convey the Minimal Corresponding Source under the terms of this
|
||||
License, and the Corresponding Application Code in a form
|
||||
suitable for, and under terms that permit, the user to
|
||||
recombine or relink the Application with a modified version of
|
||||
the Linked Version to produce a modified Combined Work, in the
|
||||
manner specified by section 6 of the GNU GPL for conveying
|
||||
Corresponding Source.
|
||||
|
||||
1) Use a suitable shared library mechanism for linking with the
|
||||
Library. A suitable mechanism is one that (a) uses at run time
|
||||
a copy of the Library already present on the user's computer
|
||||
system, and (b) will operate properly with a modified version
|
||||
of the Library that is interface-compatible with the Linked
|
||||
Version.
|
||||
|
||||
e) Provide Installation Information, but only if you would otherwise
|
||||
be required to provide such information under section 6 of the
|
||||
GNU GPL, and only to the extent that such information is
|
||||
necessary to install and execute a modified version of the
|
||||
Combined Work produced by recombining or relinking the
|
||||
Application with a modified version of the Linked Version. (If
|
||||
you use option 4d0, the Installation Information must accompany
|
||||
the Minimal Corresponding Source and Corresponding Application
|
||||
Code. If you use option 4d1, you must provide the Installation
|
||||
Information in the manner specified by section 6 of the GNU GPL
|
||||
for conveying Corresponding Source.)
|
||||
|
||||
5. Combined Libraries.
|
||||
|
||||
You may place library facilities that are a work based on the
|
||||
Library side by side in a single library together with other library
|
||||
facilities that are not Applications and are not covered by this
|
||||
License, and convey such a combined library under terms of your
|
||||
choice, if you do both of the following:
|
||||
|
||||
a) Accompany the combined library with a copy of the same work based
|
||||
on the Library, uncombined with any other library facilities,
|
||||
conveyed under the terms of this License.
|
||||
|
||||
b) Give prominent notice with the combined library that part of it
|
||||
is a work based on the Library, and explaining where to find the
|
||||
accompanying uncombined form of the same work.
|
||||
|
||||
6. Revised Versions of the GNU Lesser General Public License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions
|
||||
of the GNU Lesser General Public License from time to time. Such new
|
||||
versions will be similar in spirit to the present version, but may
|
||||
differ in detail to address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Library as you received it specifies that a certain numbered version
|
||||
of the GNU Lesser General Public License "or any later version"
|
||||
applies to it, you have the option of following the terms and
|
||||
conditions either of that published version or of any later version
|
||||
published by the Free Software Foundation. If the Library as you
|
||||
received it does not specify a version number of the GNU Lesser
|
||||
General Public License, you may choose any version of the GNU Lesser
|
||||
General Public License ever published by the Free Software Foundation.
|
||||
|
||||
If the Library as you received it specifies that a proxy can decide
|
||||
whether future versions of the GNU Lesser General Public License shall
|
||||
apply, that proxy's public statement of acceptance of any version is
|
||||
permanent authorization for you to choose that version for the
|
||||
Library.
|
||||
@ -0,0 +1,9 @@
|
||||
MIT License for txexpr
|
||||
|
||||
© 2014-2019 Matthew Butterick
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
@ -1,349 +0,0 @@
|
||||
#lang racket/base
|
||||
(require sugar/define sugar/coerce sugar/list racket/string racket/list racket/match xml rackunit)
|
||||
(provide cdata? cdata valid-char? xexpr->string xexpr?) ; from xml
|
||||
(provide empty) ; from racket/list
|
||||
|
||||
;; Section 2.2 of XML 1.1
|
||||
;; (XML 1.0 is slightly different and more restrictive)
|
||||
;; make private version of my-valid-char to get consistent results with Racket 6.0
|
||||
(define (my-valid-char? i)
|
||||
(and (exact-nonnegative-integer? i)
|
||||
(or (<= #x1 i #xD7FF)
|
||||
(<= #xE000 i #xFFFD)
|
||||
(<= #x10000 i #x10FFFF))))
|
||||
|
||||
|
||||
(define (my-xexpr? x)
|
||||
(or (txexpr? x) (xexpr? x) (my-valid-char? x)))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr? x #:short-only? [short-only #f])
|
||||
predicate/c
|
||||
(define short-sym 'short)
|
||||
(and (pair? x)
|
||||
(txexpr-tag? (car x))
|
||||
(let ([result (or (and (empty? (cdr x)) short-sym)
|
||||
;; separate the my-xexpr? tail match from the rest.
|
||||
;; as a recursive operation, it's potentially time-consuming.
|
||||
(and (andmap my-xexpr? (cddr x))
|
||||
(match (cadr x)
|
||||
[(list (? txexpr-attr?) ...) #t]
|
||||
[(? my-xexpr?) short-sym]
|
||||
[else #f])))])
|
||||
(and result (if short-only
|
||||
(eq? result short-sym)
|
||||
#t)))))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr-short? x)
|
||||
predicate/c
|
||||
(txexpr? x #:short-only? #t))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr-tag? x)
|
||||
predicate/c
|
||||
(symbol? x))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr-tags? x)
|
||||
predicate/c
|
||||
(and (list? x) (andmap txexpr-tag? x)))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr-attr? x)
|
||||
predicate/c
|
||||
(match x
|
||||
[(list (? symbol?) (? string?)) #t]
|
||||
[else #f]))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr-element? x)
|
||||
predicate/c
|
||||
(my-xexpr? x))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr-attr-key? x)
|
||||
predicate/c
|
||||
(symbol? x))
|
||||
|
||||
|
||||
(define+provide+safe (can-be-txexpr-attr-key? x)
|
||||
predicate/c
|
||||
(or (symbol? x) (string? x)))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr-attr-value? x)
|
||||
predicate/c
|
||||
(string? x))
|
||||
|
||||
|
||||
(define+provide+safe (can-be-txexpr-attr-value? x)
|
||||
predicate/c
|
||||
(or (symbol? x) (string? x)))
|
||||
|
||||
|
||||
(define-syntax-rule (define-plural plural-id pred)
|
||||
(define+provide+safe (plural-id x)
|
||||
predicate/c
|
||||
(and (list? x) (andmap pred x))))
|
||||
|
||||
(define-plural txexpr-attrs? txexpr-attr?)
|
||||
(define-plural txexpr-elements? txexpr-element?)
|
||||
(define-plural txexpr-attr-values? txexpr-attr-value?)
|
||||
(define-plural list-of-can-be-txexpr-attrs? can-be-txexpr-attrs?)
|
||||
|
||||
|
||||
(define+provide+safe (can-be-txexpr-attrs? x)
|
||||
predicate/c
|
||||
(ormap (λ(test) (test x)) (list txexpr-attr?
|
||||
txexpr-attrs?
|
||||
can-be-txexpr-attr-key?
|
||||
can-be-txexpr-attr-value?)))
|
||||
|
||||
|
||||
(define (validate-txexpr-attrs x #:context [txexpr-context #f])
|
||||
(define (make-reason)
|
||||
(if (not (list? x))
|
||||
(format "because ~v is not a list" x)
|
||||
(let ([bad-attrs (filter (λ(i) (not (txexpr-attr? i))) x)])
|
||||
(format "because ~a ~a" (string-join (map (λ(ba) (format "~v" ba)) bad-attrs) " and ")
|
||||
(if (> (length bad-attrs) 1)
|
||||
"are not valid attributes"
|
||||
"is not in the form '(symbol \"string\")")))))
|
||||
(cond
|
||||
[(and (list? x) (> (length x) 0) (andmap txexpr-attr? x)) x]
|
||||
[else (error (string-append "validate-txexpr-attrs: "
|
||||
(if txexpr-context (format "in ~v, " txexpr-context) "")
|
||||
(format "~v is not a valid list of attributes ~a" x
|
||||
(make-reason))))]))
|
||||
|
||||
|
||||
(define (validate-txexpr-element x #:context [txexpr-context #f])
|
||||
(cond
|
||||
[(or (string? x) (txexpr? x) (symbol? x)
|
||||
(valid-char? x) (cdata? x)) x]
|
||||
[else (error (string-append "validate-txexpr-element: "
|
||||
(if txexpr-context (format "in ~v, " txexpr-context) "")
|
||||
(format "~v is not a valid element (must be txexpr, string, symbol, XML char, or cdata)" x)))]))
|
||||
|
||||
|
||||
;; is it a named x-expression?
|
||||
;; todo: rewrite this recurively so errors can be pinpointed (for debugging)
|
||||
(define+provide+safe (validate-txexpr x)
|
||||
(any/c . -> . txexpr?)
|
||||
(define-syntax-rule (validate-txexpr-attrs-with-context e)
|
||||
(validate-txexpr-attrs e #:context x))
|
||||
(define-syntax-rule (validate-txexpr-element-with-context e)
|
||||
(validate-txexpr-element e #:context x))
|
||||
(cond
|
||||
[(txexpr-short? x) x]
|
||||
[(txexpr? x) (and
|
||||
(validate-txexpr-attrs-with-context (get-attrs x))
|
||||
(andmap (λ(e) (validate-txexpr-element-with-context e)) (get-elements x)) x)]
|
||||
[(and (list? x) (symbol? (car x)))
|
||||
(and
|
||||
(andmap (λ(e) (validate-txexpr-element-with-context e)) (get-elements x))
|
||||
(validate-txexpr-attrs-with-context (get-attrs x)))]
|
||||
[(list? x) (error 'validate-txexpr (format "~v is a list but it doesn't start with a symbol" x))]
|
||||
[else (error 'validate-txexpr (format "~v: not an X-expression" x))]))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr tag [attrs null] [elements null])
|
||||
((symbol?) (txexpr-attrs? txexpr-elements?) . ->* . txexpr?)
|
||||
(define result (cons tag (append (if (empty? attrs) empty (list attrs)) elements)))
|
||||
(if (txexpr? result)
|
||||
result
|
||||
(error 'txexpr
|
||||
(cond
|
||||
[(not (txexpr-tag? tag))
|
||||
(format "This is not a txexpr-tag: ~v" tag)]
|
||||
[(not (txexpr-attrs? attrs))
|
||||
(format "This is not a list of txexpr-attrs: ~v" attrs)]
|
||||
[(not (txexpr-elements? elements))
|
||||
(format "This is not a list of txexpr-elements: ~v" elements)]
|
||||
[else ""]))))
|
||||
|
||||
|
||||
(define make-txexpr txexpr) ; for backward compatability
|
||||
(provide+safe make-txexpr)
|
||||
|
||||
|
||||
(define+provide+safe (txexpr->values x)
|
||||
(txexpr? . -> . (values symbol? txexpr-attrs? txexpr-elements?))
|
||||
(if (txexpr-short? x)
|
||||
(values (car x) '() (cdr x))
|
||||
(values (car x) (cadr x) (cddr x))))
|
||||
|
||||
|
||||
(define+provide+safe (txexpr->list x)
|
||||
(txexpr? . -> . list?)
|
||||
(define-values (tag attrs content) (txexpr->values x))
|
||||
(list tag attrs content))
|
||||
|
||||
|
||||
;; convenience functions to retrieve only one part of txexpr
|
||||
(define+provide+safe (get-tag x)
|
||||
(txexpr? . -> . txexpr-tag?)
|
||||
(car x))
|
||||
|
||||
|
||||
(define+provide+safe (get-attrs x)
|
||||
(txexpr? . -> . txexpr-attrs?)
|
||||
(define-values (tag attrs content) (txexpr->values x))
|
||||
attrs)
|
||||
|
||||
|
||||
(define+provide+safe (get-elements x)
|
||||
(txexpr? . -> . txexpr-elements?)
|
||||
(define-values (tag attrs elements) (txexpr->values x))
|
||||
elements)
|
||||
|
||||
|
||||
;; helpers. we are getting a string or symbol
|
||||
(define+provide+safe (->txexpr-attr-key x)
|
||||
(can-be-txexpr-attr-key? . -> . txexpr-attr-key?)
|
||||
(->symbol x))
|
||||
|
||||
|
||||
(define+provide+safe (->txexpr-attr-value x)
|
||||
(can-be-txexpr-attr-value? . -> . txexpr-attr-value?)
|
||||
(->string x))
|
||||
|
||||
(define identity (λ (x) x))
|
||||
(define+provide+safe (attrs->hash #:hash-style? [hash-style-priority #f] . items-in)
|
||||
(() (#:hash-style? boolean?) #:rest (listof can-be-txexpr-attrs?) . ->* . hash-eq?)
|
||||
;; can be liberal with input because they're all just nested key/value pairs
|
||||
;; but still need this function to make sure that 'foo and "foo" are treated as the same hash key
|
||||
(define items (flatten items-in))
|
||||
(unless (even? (length items))
|
||||
(raise-argument-error 'attrs->hash "even number of arguments" items-in))
|
||||
;; hasheq loop will overwrite earlier values with later.
|
||||
;; but earlier attributes need priority (see https://www.w3.org/TR/xml/#attdecls)
|
||||
;; thus reverse the pairs.
|
||||
;; priority-inverted will defeat this assumption, and allow later attributes to overwrite earlier.
|
||||
(for/hasheq ([sublist (in-list ((if hash-style-priority
|
||||
identity
|
||||
reverse) (slice-at items 2)))])
|
||||
(let ([key (->txexpr-attr-key (first sublist))]
|
||||
[value (->txexpr-attr-value (second sublist))])
|
||||
(values key value))))
|
||||
|
||||
|
||||
(define+provide+safe (hash->attrs attr-hash)
|
||||
(hash? . -> . txexpr-attrs?)
|
||||
(map flatten (hash->list attr-hash)))
|
||||
|
||||
|
||||
(define+provide+safe (attrs-have-key? x key)
|
||||
((or/c txexpr-attrs? txexpr?) can-be-txexpr-attr-key? . -> . boolean?)
|
||||
(define attrs (if (txexpr-attrs? x) x (get-attrs x)))
|
||||
(and (assq (->txexpr-attr-key key) attrs) #t))
|
||||
|
||||
|
||||
(define+provide+safe (attr-set tx key value)
|
||||
(txexpr? can-be-txexpr-attr-key? can-be-txexpr-attr-value? . -> . txexpr?)
|
||||
(attr-set* tx key value))
|
||||
|
||||
(define+provide+safe (attr-set* tx . kvs)
|
||||
((txexpr?) #:rest (listof (or/c can-be-txexpr-attr-key? can-be-txexpr-attr-value?)) . ->* . txexpr?)
|
||||
;; unlike others, this uses hash operations to guarantee that your attr-set
|
||||
;; is the only one remaining.
|
||||
(unless (even? (length kvs))
|
||||
(raise-argument-error 'attr-set* "even number of arguments" kvs))
|
||||
(define new-attrs
|
||||
(hash->attrs
|
||||
(apply hash-set* (attrs->hash (get-attrs tx))
|
||||
(append-map (λ(sublist)
|
||||
(list (->txexpr-attr-key (first sublist))
|
||||
(->txexpr-attr-value (second sublist)))) (slice-at kvs 2)))))
|
||||
(txexpr (get-tag tx) new-attrs (get-elements tx)))
|
||||
|
||||
|
||||
|
||||
(define+provide+safe (attr-join tx key value)
|
||||
(txexpr? can-be-txexpr-attr-key? can-be-txexpr-attr-value? . -> . txexpr?)
|
||||
(define starting-values (string-split (if (attrs-have-key? tx key)
|
||||
(attr-ref tx key)
|
||||
"")))
|
||||
(attr-set tx key (string-join `(,@starting-values ,value) " ")))
|
||||
|
||||
|
||||
|
||||
(define+provide+safe (attr-ref tx key [failure-result (λ _ (raise (make-exn:fail:contract (format "attr-ref: no value found for key ~v" key) (current-continuation-marks))))])
|
||||
((txexpr? can-be-txexpr-attr-key?) (any/c) . ->* . any)
|
||||
(define result (assq (->txexpr-attr-key key) (get-attrs tx)))
|
||||
(if result
|
||||
(second result)
|
||||
(if (procedure? failure-result)
|
||||
(failure-result)
|
||||
failure-result)))
|
||||
|
||||
|
||||
|
||||
(define+provide+safe (remove-attrs x)
|
||||
(txexpr? . -> . txexpr?)
|
||||
(let loop ([x x])
|
||||
(if (txexpr? x)
|
||||
(let-values ([(tag attr elements) (txexpr->values x)])
|
||||
(txexpr tag null (map loop elements)))
|
||||
x)))
|
||||
|
||||
|
||||
|
||||
(define+provide+safe (map-elements proc x)
|
||||
(procedure? txexpr? . -> . txexpr?)
|
||||
(proc (if (txexpr? x)
|
||||
(let-values ([(tag attr elements) (txexpr->values x)])
|
||||
(txexpr tag attr (map (λ(e)(map-elements proc e)) elements)))
|
||||
x)))
|
||||
|
||||
|
||||
;; function to split tag out of txexpr
|
||||
(define deleted-signal (gensym))
|
||||
(define+provide+safe (splitf-txexpr tx pred [proc (λ(x) deleted-signal)])
|
||||
((txexpr? procedure?) (procedure?) . ->* . (values txexpr? txexpr-elements?))
|
||||
(define matches null)
|
||||
(define (do-extraction x)
|
||||
(cond
|
||||
[(pred x) (begin ; store matched item and return processed value
|
||||
(set! matches (cons x matches))
|
||||
(proc x))]
|
||||
[(txexpr? x) (let-values([(tag attr elements) (txexpr->values x)])
|
||||
(txexpr tag attr (filter (λ(e) (not (equal? e deleted-signal)))
|
||||
(map do-extraction elements))))]
|
||||
[else x]))
|
||||
(define tx-extracted (do-extraction tx)) ;; do this first to fill matches
|
||||
(unless (txexpr? tx-extracted)
|
||||
(error 'splitf-txexpr "Bad input"))
|
||||
(values tx-extracted (reverse matches)))
|
||||
|
||||
|
||||
(define+provide+safe (findf*-txexpr tx pred)
|
||||
(txexpr? procedure? . -> . (or/c #f txexpr-elements?))
|
||||
(define-values (_ matches) (splitf-txexpr tx pred))
|
||||
(and (pair? matches) matches))
|
||||
|
||||
|
||||
(define+provide+safe (findf-txexpr tx pred)
|
||||
(txexpr? procedure? . -> . (or/c #f txexpr-element?))
|
||||
(define matches (findf*-txexpr tx pred))
|
||||
(and matches (car matches)))
|
||||
|
||||
|
||||
(define+provide+safe (xexpr->html x)
|
||||
(xexpr? . -> . string?)
|
||||
(define (->cdata x)
|
||||
(cond
|
||||
[(cdata? x) x]
|
||||
; don't use "![CDATA[...]]" wrapper in HTML, it's not consistent with the spec
|
||||
[(string? x) (cdata #f #f x)]
|
||||
[else x]))
|
||||
(xexpr->string (let loop ([x x])
|
||||
(cond
|
||||
[(txexpr? x) (if (member (get-tag x) '(script style))
|
||||
(txexpr (get-tag x) (get-attrs x)
|
||||
(map ->cdata (get-elements x)))
|
||||
(txexpr (get-tag x) (get-attrs x)
|
||||
(map loop (get-elements x))))]
|
||||
[else x]))))
|
||||
|
||||
@ -1,8 +1,6 @@
|
||||
#lang info
|
||||
(define version "0.2")
|
||||
(define collection "txexpr")
|
||||
(define collection 'multi)
|
||||
(define deps '("base" ["sugar" #:version "0.2"] "rackunit-lib"))
|
||||
(define update-implies '("sugar"))
|
||||
(define build-deps '("scribble-lib" "racket-doc" "rackunit-doc"))
|
||||
(define scribblings '(("scribblings/txexpr.scrbl" ())))
|
||||
(define compile-omit-paths '("tests.rkt"))
|
||||
@ -1,13 +0,0 @@
|
||||
#lang racket/base
|
||||
|
||||
(define-syntax-rule (r+p modname ...)
|
||||
(begin
|
||||
(begin
|
||||
(require modname)
|
||||
(provide (all-from-out modname))
|
||||
(module+ safe
|
||||
(require (submod modname safe))
|
||||
(provide (all-from-out (submod modname safe))))) ...))
|
||||
|
||||
(r+p "base.rkt"
|
||||
"check.rkt")
|
||||
@ -0,0 +1,328 @@
|
||||
#lang racket/base
|
||||
(require racket/match sugar/define sugar/list sugar/coerce
|
||||
racket/string racket/list
|
||||
xml
|
||||
"private/define-provide-safe-match.rkt"
|
||||
(for-syntax racket/base syntax/parse))
|
||||
(provide cdata? cdata valid-char? xexpr->string xexpr? comment comment?) ; from xml
|
||||
(provide empty) ; from racket/list
|
||||
|
||||
;; Section 2.2 of XML 1.1
|
||||
;; (XML 1.0 is slightly different and more restrictive)
|
||||
;; make private version of my-valid-char to get consistent results with Racket 6.0
|
||||
(define (my-valid-char? i)
|
||||
(and (exact-nonnegative-integer? i)
|
||||
(or (<= #x1 i #xD7FF)
|
||||
(<= #xE000 i #xFFFD)
|
||||
(<= #x10000 i #x10FFFF))))
|
||||
|
||||
(define (my-xexpr? x)
|
||||
(or (my-valid-char? x) (xexpr? x) (txexpr? x)))
|
||||
|
||||
(define+provide+safe (txexpr? x [allow-long #t])
|
||||
predicate/c
|
||||
(match x
|
||||
[(cons (? txexpr-tag?) rest)
|
||||
(=> resume)
|
||||
(let loop ([rest rest])
|
||||
(match rest
|
||||
[(list (? my-xexpr?) ...) #true]
|
||||
[(list (? txexpr-attrs?) elems ...) #:when allow-long (loop elems)]
|
||||
[_ (resume)]))]
|
||||
[_ #false]))
|
||||
|
||||
(define+provide+safe (txexpr-short? x)
|
||||
predicate/c
|
||||
(txexpr? x #false))
|
||||
|
||||
(define+provide+safe (txexpr-tag? x)
|
||||
predicate/c
|
||||
(symbol? x))
|
||||
|
||||
(define+provide+safe (txexpr-attr? x)
|
||||
predicate/c
|
||||
(match x
|
||||
[(list (? txexpr-attr-key?) (? txexpr-attr-value?)) #true]
|
||||
[_ #false]))
|
||||
|
||||
(define+provide+safe (txexpr-element? x)
|
||||
predicate/c
|
||||
(my-xexpr? x))
|
||||
|
||||
(define+provide+safe (txexpr-attr-key? x)
|
||||
predicate/c
|
||||
(symbol? x))
|
||||
|
||||
(define+provide+safe (can-be-txexpr-attr-key? x)
|
||||
predicate/c
|
||||
(symbolish? x))
|
||||
|
||||
(define+provide+safe (txexpr-attr-value? x)
|
||||
predicate/c
|
||||
(string? x))
|
||||
|
||||
(define+provide+safe (can-be-txexpr-attr-value? x)
|
||||
predicate/c
|
||||
(stringish? x))
|
||||
|
||||
(define-syntax-rule (define-plural plural-id pred)
|
||||
(define+provide+safe (plural-id x)
|
||||
predicate/c
|
||||
(match x
|
||||
[(list (? pred) (... ...)) #true]
|
||||
[_ #false])))
|
||||
|
||||
(define-plural txexpr-tags? txexpr-tag?)
|
||||
(define-plural txexpr-attrs? txexpr-attr?)
|
||||
(define-plural txexpr-elements? txexpr-element?)
|
||||
(define-plural txexpr-attr-values? txexpr-attr-value?)
|
||||
(define-plural list-of-can-be-txexpr-attrs? can-be-txexpr-attrs?)
|
||||
|
||||
(define+provide+safe (can-be-txexpr-attrs? x)
|
||||
predicate/c
|
||||
(or (can-be-txexpr-attr-key? x)
|
||||
(can-be-txexpr-attr-value? x)
|
||||
(txexpr-attr? x)
|
||||
(txexpr-attrs? x)))
|
||||
|
||||
(define (validate-txexpr-attrs tx)
|
||||
(andmap
|
||||
(lambda (attr)
|
||||
(unless (and (list? attr) (eq? 2 (length attr)))
|
||||
(txexpr-error "attribute" "is not a list of the form '(symbol \"string\")" attr tx))
|
||||
(unless (symbol? (first attr))
|
||||
(txexpr-error "attribute key" "is not a symbol" (first attr) tx))
|
||||
(unless (string? (second attr))
|
||||
(txexpr-error "attribute value" "is not a string" (second attr) tx))
|
||||
#t)
|
||||
(second tx)))
|
||||
|
||||
(define (validate-txexpr-elements elems tx)
|
||||
(andmap
|
||||
(lambda (e)
|
||||
(cond
|
||||
[(or (string? e) (symbol? e) (my-valid-char? e) (cdata? e) (comment? e)) #t]
|
||||
[(and (list? e) (symbol? (first e)))
|
||||
(validate-txexpr e)]
|
||||
[else (txexpr-error "element" "not a valid element (= txexpr, string, symbol, XML char, cdata, or comment)" e tx)]))
|
||||
elems))
|
||||
|
||||
(define (txexpr-error noun has-problem bad tx)
|
||||
(raise-arguments-error 'validate-txexpr (format "~a ~a" noun has-problem) noun bad "in" tx))
|
||||
|
||||
;; is it a named x-expression?
|
||||
;; Restricting to primitive predicates allows for more specific (helpful) errors
|
||||
(define+provide+safe (validate-txexpr x)
|
||||
(any/c . -> . txexpr?)
|
||||
(unless (list? x) (raise-argument-error 'validate-txexpr "tagged X-expression" x))
|
||||
(match x
|
||||
[(list* tag _) #:when (not (symbol? tag))
|
||||
(txexpr-error "tag" "must be a symbol" tag x)]
|
||||
[(list* tag (or (? null?) (list (? list?) _ ...)) elems)
|
||||
(and (validate-txexpr-attrs x) (validate-txexpr-elements elems x) x)]
|
||||
[(list* tag elems) (and (validate-txexpr-elements elems x) x)]))
|
||||
|
||||
(define (txexpr-unsafe tag attrs elements)
|
||||
(cons tag (match attrs
|
||||
[(== empty) elements]
|
||||
[_ (cons attrs elements)])))
|
||||
|
||||
(define (txexpr-base func-name tag attrs elements)
|
||||
(unless (txexpr-tag? tag)
|
||||
(raise-argument-error func-name "txexpr-tag?" tag))
|
||||
(unless (txexpr-attrs? attrs)
|
||||
(raise-argument-error func-name "txexpr-attrs?" attrs))
|
||||
(unless (txexpr-elements? elements)
|
||||
(raise-argument-error func-name "txexpr-elements?" elements))
|
||||
(txexpr-unsafe tag attrs elements))
|
||||
|
||||
(define+provide+safe+match (txexpr tag [attrs null] [elements null])
|
||||
((txexpr-tag?) (txexpr-attrs? txexpr-elements?) . ->* . txexpr?)
|
||||
(txexpr-base 'txexpr tag attrs elements)
|
||||
#:match-expander
|
||||
(syntax-parser
|
||||
[(_ tag-pat:expr
|
||||
{~optional attrs-pat:expr #:defaults ([attrs-pat #'_])}
|
||||
{~optional elements-pat:expr #:defaults ([elements-pat #'_])})
|
||||
#'(? txexpr? (app txexpr->values tag-pat attrs-pat elements-pat))]))
|
||||
|
||||
(define+provide+safe (txexpr* tag [attrs null] . elements)
|
||||
((txexpr-tag?) (txexpr-attrs?) #:rest txexpr-elements? . ->* . txexpr?)
|
||||
(txexpr-base 'txexpr* tag attrs elements))
|
||||
|
||||
(define make-txexpr txexpr) ; for backward compatability
|
||||
(provide+safe make-txexpr)
|
||||
|
||||
(define+provide+safe (txexpr->values x)
|
||||
(txexpr? . -> . (values txexpr-tag? txexpr-attrs? txexpr-elements?))
|
||||
(match x
|
||||
[(? txexpr-short?) (values (car x) '() (cdr x))]
|
||||
[_ (values (car x) (cadr x) (cddr x))]))
|
||||
|
||||
(define+provide+safe (txexpr->list x)
|
||||
(txexpr? . -> . list?)
|
||||
(call-with-values (λ () (txexpr->values x)) list))
|
||||
|
||||
;; convenience functions to retrieve only one part of txexpr
|
||||
(define+provide+safe (get-tag x)
|
||||
(txexpr? . -> . txexpr-tag?)
|
||||
(car x))
|
||||
|
||||
(define+provide+safe (get-attrs x)
|
||||
(txexpr? . -> . txexpr-attrs?)
|
||||
(define-values (tag attrs elements) (txexpr->values x))
|
||||
attrs)
|
||||
|
||||
(define+provide+safe (get-elements x)
|
||||
(txexpr? . -> . txexpr-elements?)
|
||||
(define-values (tag attrs elements) (txexpr->values x))
|
||||
elements)
|
||||
|
||||
;; helpers. we are getting a string or symbol
|
||||
(define+provide+safe (->txexpr-attr-key x)
|
||||
(can-be-txexpr-attr-key? . -> . txexpr-attr-key?)
|
||||
(unless (can-be-txexpr-attr-key? x)
|
||||
(raise-argument-error '->txexpr-attr-key "can-be-txexpr-attr-key?" x))
|
||||
(->symbol x))
|
||||
|
||||
(define+provide+safe (->txexpr-attr-value x)
|
||||
(can-be-txexpr-attr-value? . -> . txexpr-attr-value?)
|
||||
(unless (can-be-txexpr-attr-value? x)
|
||||
(raise-argument-error '->txexpr-attr-value "can-be-txexpr-attr-value?" x))
|
||||
(->string x))
|
||||
|
||||
(define (sublist->attr sublist)
|
||||
(match sublist
|
||||
[(list key value) (list (->txexpr-attr-key key) (->txexpr-attr-value value))]))
|
||||
|
||||
(define+provide+safe (attrs->hash #:hash-style? [hash-style-priority #f] . items-in)
|
||||
(() (#:hash-style? boolean?) #:rest (listof can-be-txexpr-attrs?) . ->* . hash-eq?)
|
||||
;; can be liberal with input because they're all just nested key/value pairs
|
||||
;; but still need this function to make sure that 'foo and "foo" are treated as the same hash key
|
||||
(define items (flatten items-in))
|
||||
(unless (even? (length items))
|
||||
(raise-argument-error 'attrs->hash "argument list of even length" (length items-in)))
|
||||
;; hasheq loop will overwrite earlier values with later.
|
||||
;; but earlier attributes need priority (see https://www.w3.org/TR/xml/#attdecls)
|
||||
;; thus reverse the pairs.
|
||||
;; priority-inverted will defeat this assumption, and allow later attributes to overwrite earlier.
|
||||
(for/hasheq ([sublist (in-list ((if hash-style-priority
|
||||
values
|
||||
reverse) (slice-at items 2)))])
|
||||
(apply values (sublist->attr sublist))))
|
||||
|
||||
(define+provide+safe (hash->attrs attr-hash)
|
||||
(hash? . -> . txexpr-attrs?)
|
||||
(match (hash->list attr-hash)
|
||||
[(list (cons ks vs) ...) (map list ks vs)]))
|
||||
|
||||
(define+provide+safe (attrs-have-key? x key)
|
||||
((or/c txexpr-attrs? txexpr?) can-be-txexpr-attr-key? . -> . boolean?)
|
||||
(match x
|
||||
[(? txexpr? tx) (and (attr-ref tx key #false) #true)]
|
||||
[_ (attrs-have-key? (txexpr-unsafe '_ x null) key)]))
|
||||
|
||||
(define+provide+safe (attr-set tx key value)
|
||||
(txexpr? can-be-txexpr-attr-key? can-be-txexpr-attr-value? . -> . txexpr?)
|
||||
(attr-set* tx key value))
|
||||
|
||||
(define+provide+safe (attr-set* tx . kvs)
|
||||
((txexpr?) #:rest (listof (or/c can-be-txexpr-attr-key? can-be-txexpr-attr-value?)) . ->* . txexpr?)
|
||||
;; unlike others, this uses hash operations to guarantee that your attr-set
|
||||
;; is the only one remaining.
|
||||
(unless (even? (length kvs))
|
||||
(raise-argument-error 'attr-set* "even number of arguments" kvs))
|
||||
(define new-attrs (hash->attrs
|
||||
(apply hash-set* (attrs->hash (get-attrs tx))
|
||||
(append-map sublist->attr (slice-at kvs 2)))))
|
||||
(txexpr-base 'attr-set* (get-tag tx) new-attrs (get-elements tx)))
|
||||
|
||||
(define+provide+safe (attr-join tx key value)
|
||||
(txexpr? can-be-txexpr-attr-key? can-be-txexpr-attr-value? . -> . txexpr?)
|
||||
(define starting-values (string-split (attr-ref tx key "")))
|
||||
(attr-set tx key (string-join (append starting-values (list (->txexpr-attr-value value))) " ")))
|
||||
|
||||
(define no-failure-result (gensym)) ; failure-result might be #false
|
||||
(define+provide+safe (attr-ref attrs-arg key [failure-result no-failure-result])
|
||||
(((or/c txexpr? txexpr-attrs?) can-be-txexpr-attr-key?) (any/c) . ->* . any)
|
||||
(match (assq (->txexpr-attr-key key) (match attrs-arg
|
||||
[(? txexpr? tx) (get-attrs tx)]
|
||||
[attrs attrs]))
|
||||
[(list _ value) value]
|
||||
[_ (match failure-result
|
||||
[(? procedure?) (failure-result)]
|
||||
[(== no-failure-result) (raise-argument-error 'attr-ref "key that exists in attr list" key)]
|
||||
[_ failure-result])]))
|
||||
|
||||
(define+provide+safe (remove-attrs x)
|
||||
(txexpr? . -> . txexpr?)
|
||||
(let loop ([x x])
|
||||
(if (txexpr? x)
|
||||
(let-values ([(tag attrs elements) (txexpr->values x)])
|
||||
(txexpr-unsafe tag null (map loop elements)))
|
||||
x)))
|
||||
|
||||
(define+provide+safe (map-elements proc x)
|
||||
(procedure? txexpr? . -> . txexpr?)
|
||||
(let loop ([x x])
|
||||
(proc (if (txexpr? x)
|
||||
(let-values ([(tag attrs elements) (txexpr->values x)])
|
||||
(txexpr-unsafe tag attrs (map loop elements)))
|
||||
x))))
|
||||
|
||||
;; function to split tag out of txexpr
|
||||
(define+provide+safe (splitf-txexpr tx pred [proc (λ (x) #f)])
|
||||
((txexpr? procedure?) (procedure?) . ->* . (values txexpr? txexpr-elements?))
|
||||
(unless (txexpr? tx)
|
||||
(raise-argument-error 'splitf-txexpr "txexpr?" tx))
|
||||
(define matches null)
|
||||
(define (extract! x)
|
||||
(match x
|
||||
[(? pred)
|
||||
(set! matches (cons x matches))
|
||||
(proc x)]
|
||||
[(? txexpr?) (let-values ([(tag attrs elements) (txexpr->values x)])
|
||||
(txexpr-unsafe tag attrs (filter values (map extract! elements))))]
|
||||
[_ x]))
|
||||
(define tx-extracted (extract! tx)) ;; do this first to fill matches
|
||||
(values tx-extracted (reverse matches)))
|
||||
|
||||
(define+provide+safe (findf*-txexpr tx pred)
|
||||
(txexpr? procedure? . -> . (or/c #f txexpr-elements?))
|
||||
(match/values (splitf-txexpr tx pred)
|
||||
[(_ (? pair? matches)) matches]
|
||||
[(_ _) #false]))
|
||||
|
||||
(define+provide+safe (findf-txexpr tx pred)
|
||||
(txexpr? procedure? . -> . (or/c #f txexpr-element?))
|
||||
(match (findf*-txexpr tx pred)
|
||||
[(cons match _) match]
|
||||
[_ #false]))
|
||||
|
||||
;; don't use "![CDATA[...]]" wrapper in HTML, it's not consistent with the spec
|
||||
(define (->cdata x) (if (string? x) (cdata #f #f x) x))
|
||||
|
||||
;; but treat CDATA strings correctly anyhow, because that's friendly
|
||||
(define (cdata-string? x)
|
||||
(and (string? x) (regexp-match #rx"^<!\\[CDATA\\[.*\\]\\]>$" x) #true))
|
||||
|
||||
(define comment-pattern #rx"^<!--(.*?)-->$")
|
||||
|
||||
(define (string->comment x)
|
||||
(match (regexp-match comment-pattern x)
|
||||
[(list _ comment-payload) (comment comment-payload)]
|
||||
[_ #false]))
|
||||
|
||||
(define+provide+safe (xexpr->html x)
|
||||
(xexpr? . -> . string?)
|
||||
(xexpr->string
|
||||
(let loop ([x x])
|
||||
(cond
|
||||
[(txexpr? x)
|
||||
(define-values (tag attrs elements) (txexpr->values x))
|
||||
(define proc (if (memq tag '(script style)) ->cdata loop))
|
||||
;; a little faster than `txexpr` since we know the pieces are valid
|
||||
(txexpr-unsafe tag attrs (map proc elements))]
|
||||
[(cdata-string? x) (->cdata x)]
|
||||
[(and (string? x) (string->comment x))]
|
||||
[else x]))))
|
||||
@ -0,0 +1,4 @@
|
||||
#lang info
|
||||
|
||||
(define scribblings '(("scribblings/txexpr.scrbl" ())))
|
||||
(define compile-omit-paths '("test/tests.rkt"))
|
||||
@ -0,0 +1,14 @@
|
||||
#lang racket/base
|
||||
|
||||
(define-syntax-rule (r+p MODNAME ...)
|
||||
(begin
|
||||
(begin
|
||||
(require MODNAME)
|
||||
(provide (all-from-out MODNAME))
|
||||
(module+ safe
|
||||
(require (submod MODNAME safe))
|
||||
(provide (all-from-out (submod MODNAME safe))))) ...))
|
||||
|
||||
(r+p "base.rkt"
|
||||
"stx.rkt"
|
||||
"check.rkt")
|
||||
@ -0,0 +1,43 @@
|
||||
#lang racket/base
|
||||
|
||||
(provide txexpr?/recur
|
||||
txexpr->values/attrs?)
|
||||
|
||||
(require racket/list)
|
||||
|
||||
;; A [TXcontainer T A E] is one of:
|
||||
;; - (List* T A (Listof E))
|
||||
;; - (Lxst* T (Listof E))
|
||||
;; Where A and E are disjoint.
|
||||
|
||||
;; txexpr?/recur :
|
||||
;; Any
|
||||
;; [Any -> Bool : T]
|
||||
;; [Any -> Bool : #:+ (and A (! E)) #:- (! A)]
|
||||
;; [Any -> Bool : #:+ (and E (! A)) #:- (! E)]
|
||||
;; ->
|
||||
;; Bool
|
||||
;; : [TXcontainer T A E]
|
||||
;; the attrs? predicate and the element? predicate should be disjoint
|
||||
(define (txexpr?/recur v tag? attrs? element?)
|
||||
(and (list? v)
|
||||
(not (empty? v))
|
||||
(tag? (first v))
|
||||
(cond [(and (not (empty? (rest v)))
|
||||
(attrs? (second v)))
|
||||
(andmap element? (rest (rest v)))]
|
||||
[else
|
||||
(andmap element? (rest v))])))
|
||||
|
||||
;; txexpr->values/attrs? :
|
||||
;; [TXcontainer T A E]
|
||||
;; [Any -> Bool : #:+ (and A (! E)) #:- (! A)]
|
||||
;; ->
|
||||
;; (values T A (Listof E))
|
||||
(define (txexpr->values/attrs? tx attrs?)
|
||||
(cond [(and (not (empty? (rest tx)))
|
||||
(attrs? (second tx)))
|
||||
(values (first tx) (second tx) (rest (rest tx)))]
|
||||
[else
|
||||
(values (first tx) '() (rest tx))]))
|
||||
|
||||
@ -0,0 +1,82 @@
|
||||
#lang racket/base
|
||||
|
||||
(provide define+provide+safe+match)
|
||||
|
||||
(require racket/match
|
||||
(for-syntax racket/base
|
||||
racket/syntax
|
||||
syntax/parse
|
||||
syntax/stx
|
||||
version/utils))
|
||||
|
||||
;; (define+provide+safe+match name-id
|
||||
;; contract-expr
|
||||
;; value-expr
|
||||
;; #:match-expander
|
||||
;; match-transformer-expr)
|
||||
;;
|
||||
;; (define+provide+safe+match (head . args)
|
||||
;; contract-expr
|
||||
;; value-body-expr
|
||||
;; ...+
|
||||
;; #:match-expander
|
||||
;; match-transformer-expr)
|
||||
|
||||
(begin-for-syntax
|
||||
;; Identifier -> [Syntax -> Syntax]
|
||||
(define ((variable-like-transformer id) stx)
|
||||
(cond
|
||||
[(identifier? stx)
|
||||
; id, but with the source location of stx
|
||||
(datum->syntax id (syntax-e id) stx id)]
|
||||
[(stx-pair? stx)
|
||||
(datum->syntax stx (cons id (stx-cdr stx)) stx stx)])))
|
||||
|
||||
(define-syntax define+provide+safe+match
|
||||
(λ (stx)
|
||||
(syntax-parse stx
|
||||
|
||||
[(d (head . args)
|
||||
contract:expr
|
||||
value-body:expr ...+
|
||||
#:match-expander match-transformer:expr)
|
||||
#:with fn-expr (syntax/loc stx (λ args value-body ...))
|
||||
(syntax/loc stx
|
||||
(d head contract fn-expr #:match-expander match-transformer))]
|
||||
|
||||
[(_ name:id
|
||||
contract:expr
|
||||
value:expr
|
||||
#:match-expander match-transformer:expr)
|
||||
#:with internal-name (generate-temporary #'name)
|
||||
#:with contract-name (generate-temporary #'name)
|
||||
#:with make-name-match-transformer (generate-temporary #'name)
|
||||
#:with [name-for-blame ...]
|
||||
(cond [(version<=? "6.8" (version)) #'[#:name-for-blame name]]
|
||||
[else #'[]])
|
||||
|
||||
#'(begin
|
||||
(define internal-name (let ([name value]) name))
|
||||
|
||||
(begin-for-syntax
|
||||
(define (make-name-match-transformer name)
|
||||
(with-syntax ([name name]) match-transformer)))
|
||||
|
||||
(define-match-expander name
|
||||
(make-name-match-transformer (quote-syntax internal-name))
|
||||
(variable-like-transformer (quote-syntax internal-name)))
|
||||
|
||||
(provide name)
|
||||
|
||||
(module+ safe
|
||||
(require racket/contract/base)
|
||||
|
||||
(define-module-boundary-contract contract-name internal-name contract
|
||||
name-for-blame ...)
|
||||
|
||||
(define-match-expander name
|
||||
(make-name-match-transformer (quote-syntax contract-name))
|
||||
(variable-like-transformer (quote-syntax contract-name)))
|
||||
|
||||
(provide name)))])))
|
||||
|
||||
@ -0,0 +1,129 @@
|
||||
#lang racket/base
|
||||
|
||||
(provide stx-xexpr?
|
||||
stx-txexpr?
|
||||
stx-txexpr-tag?
|
||||
stx-txexpr-attrs?
|
||||
stx-txexpr->values
|
||||
stx-txexpr->list
|
||||
stx-txexpr-tag
|
||||
stx-txexpr-attrs
|
||||
stx-txexpr-elements)
|
||||
|
||||
(require syntax/stx
|
||||
xml
|
||||
"base.rkt"
|
||||
"private/container.rkt")
|
||||
|
||||
;; ---------------------------------------------------------
|
||||
|
||||
;; Data Definitions
|
||||
|
||||
;; A [Stx E] is one of:
|
||||
;; - (Syntaxof E)
|
||||
;; - E
|
||||
|
||||
;; A StxXexpr is a [Stx XexprE]
|
||||
;; A StxTXexpr is a [Stx TXexprE]
|
||||
;; A StxTag is a [Stx Symbol]
|
||||
;; A StxAttrs is a (StxListof (StxList [Stx Symbol] [Stx String]))
|
||||
;; A StxElements is a (StxListof StxXexpr)
|
||||
|
||||
;; A XexprE is one of:
|
||||
;; - String
|
||||
;; - TXexprE
|
||||
;; - Symbol ; for example 'nbsp representing ` `
|
||||
;; - ValidChar ; for example #x20 representing ` `
|
||||
;; - CData ; an instance of the `cdata` structure type from `xml`
|
||||
;; - Misc ; an instance of the `comment` or `p-i` structure types
|
||||
|
||||
;; A TXexprE is one of:
|
||||
;; - (list* StxTag StxAttrs StxElements)
|
||||
;; - (list* StxTag StxElements)
|
||||
|
||||
;; The types `StxAttrs` and `StxXexpr` are disjoint, as they
|
||||
;; need to be for this to be unambiguous.
|
||||
|
||||
;; ---------------------------------------------------------
|
||||
|
||||
;; Predicates
|
||||
|
||||
;; Any -> Bool
|
||||
(define (stx-xexpr? v)
|
||||
(stx-xexpr?/recur v stx-xexpr?))
|
||||
|
||||
;; Any -> Bool
|
||||
(define (stx-txexpr? v)
|
||||
(stx-txexpr?/recur v stx-xexpr?))
|
||||
|
||||
;; Any [Any -> Bool] -> Bool
|
||||
(define (stx-xexpr?/recur v rec)
|
||||
(cond
|
||||
[(syntax? v) (stx-xexpr?/recur (syntax-e v) rec)]
|
||||
[(pair? v) (stx-txexpr?/recur v rec)]
|
||||
[else (xexpr?/recur v rec)]))
|
||||
|
||||
;; Any [Any -> Bool] -> Bool
|
||||
;; the `rec` predicate should not overlap with `txexpr-attrs?`
|
||||
(define (xexpr?/recur v rec)
|
||||
(cond
|
||||
[(pair? v) (txexpr?/recur v txexpr-tag? txexpr-attrs? rec)]
|
||||
[(string? v) #true]
|
||||
[(symbol? v) #true]
|
||||
[(integer? v) (valid-char? v)]
|
||||
[(cdata? v) #true]
|
||||
[(comment? v) #true]
|
||||
[(p-i? v) #true]
|
||||
[else #false]))
|
||||
|
||||
;; Any [Any -> Bool] -> Bool
|
||||
;; the `rec` predicate should not overlap with
|
||||
;; `stx-txexpr-attrs?`
|
||||
(define (stx-txexpr?/recur v rec)
|
||||
;; Even if it's not stx, the cdr or cddr might be syntax.
|
||||
;; This flattens it so that the cdd...r is always a pair or empty.
|
||||
(define lst (stx->list v))
|
||||
(and lst (txexpr?/recur lst stx-txexpr-tag? stx-txexpr-attrs? rec)))
|
||||
|
||||
;; Any -> Bool
|
||||
(define (stx-txexpr-tag? v)
|
||||
(cond
|
||||
[(syntax? v) (txexpr-tag? (syntax-e v))]
|
||||
[else (txexpr-tag? v)]))
|
||||
|
||||
;; Any -> Bool
|
||||
(define (stx-txexpr-attrs? v)
|
||||
(txexpr-attrs? (syntax->datum (datum->syntax #f v))))
|
||||
|
||||
;; ---------------------------------------------------------
|
||||
|
||||
;; Accessors
|
||||
|
||||
;; StxTxexpr -> (values StxTag StxAttrs StxElements)
|
||||
(define (stx-txexpr->values v)
|
||||
(txexpr->values/attrs? (stx->list v) stx-txexpr-attrs?))
|
||||
|
||||
;; StxTxexpr -> (List StxTag StxAttrs StxElements)
|
||||
(define (stx-txexpr->list v)
|
||||
(define-values [tag attrs elements] (stx-txexpr->values v))
|
||||
(list tag attrs elements))
|
||||
|
||||
;; StxTxexpr -> StxTag
|
||||
(define (stx-txexpr-tag v)
|
||||
(define-values [tag attrs elements] (stx-txexpr->values v))
|
||||
tag)
|
||||
|
||||
;; StxTxexpr -> StxAttrs
|
||||
(define (stx-txexpr-attrs v)
|
||||
(define-values [tag attrs elements] (stx-txexpr->values v))
|
||||
attrs)
|
||||
|
||||
;; StxTxexpr -> StxElements
|
||||
(define (stx-txexpr-elements v)
|
||||
(define-values [tag attrs elements] (stx-txexpr->values v))
|
||||
elements)
|
||||
|
||||
;; ---------------------------------------------------------
|
||||
|
||||
(module+ safe
|
||||
(provide (all-defined-out)))
|
||||
@ -0,0 +1,63 @@
|
||||
#lang racket/base
|
||||
|
||||
(provide values->list
|
||||
check-values=?
|
||||
check/values)
|
||||
|
||||
(require rackunit
|
||||
(for-syntax racket/base))
|
||||
|
||||
;; Takes an expression producing an unknown number of values
|
||||
;; and wraps them all in a list.
|
||||
(define-syntax-rule (values->list values-expr)
|
||||
(call-with-values (λ () values-expr) list))
|
||||
|
||||
|
||||
;; Checks that two expressions (each producing an unknown
|
||||
;; number of values until evaluated) produce the same number
|
||||
;; of values, and that the values are equal.
|
||||
(define-syntax check-values=?
|
||||
(lambda (stx)
|
||||
(syntax-case stx []
|
||||
[(_ actual-expr expected-expr)
|
||||
(syntax/loc stx
|
||||
(check/values check-equal? actual-expr expected-expr))])))
|
||||
|
||||
(define-syntax check/values
|
||||
(lambda (stx)
|
||||
(syntax-case stx []
|
||||
[(_ check-form actual-expr expected-expr)
|
||||
(syntax/loc stx
|
||||
(check-form (vs actual-expr) (vs expected-expr)))])))
|
||||
|
||||
|
||||
;; Takes an expression producing an unknown number of values
|
||||
;; and wraps them in a "fake-values" structure that can be
|
||||
;; compared with other fake-values structures for equality,
|
||||
;; and can be printed to look like a call to `values`.
|
||||
(define-syntax-rule (vs values-expr)
|
||||
(fake-values (values->list values-expr)))
|
||||
|
||||
;; if make-constructor-style-printer from racket/struct exists,
|
||||
;; this is it, and otherwise this is a cheap immitation.
|
||||
(define make-constructor-style-printer
|
||||
(with-handlers ([exn:fail:filesystem?
|
||||
(λ (e)
|
||||
(λ (get-head get-elems)
|
||||
(λ (v out mode)
|
||||
(define head (get-head v))
|
||||
(define elems (get-elems v))
|
||||
(fprintf out "(~a" head)
|
||||
(for ([elem elems])
|
||||
(fprintf out " ~v" elem))
|
||||
(fprintf out ")"))))])
|
||||
(dynamic-require 'racket/struct 'make-constructor-style-printer)))
|
||||
|
||||
(struct fake-values [list]
|
||||
#:transparent
|
||||
#:methods gen:custom-write
|
||||
[(define write-proc
|
||||
(make-constructor-style-printer
|
||||
(lambda (self) 'values)
|
||||
(lambda (self) (fake-values-list self))))])
|
||||
|
||||
@ -0,0 +1,16 @@
|
||||
#lang racket/base
|
||||
|
||||
(require (submod "../main.rkt" safe))
|
||||
(module+ test
|
||||
(require rackunit))
|
||||
|
||||
(module+ test
|
||||
(check-exn (regexp (string-append
|
||||
"txexpr.*: contract violation\n"
|
||||
" *expected: txexpr-tag\\?\n"
|
||||
" *given: 4\n"
|
||||
" *in: the 1st argument.*"
|
||||
" *blaming: .*test/contract-tests.rkt"))
|
||||
(λ () (txexpr 4)))
|
||||
)
|
||||
|
||||
@ -0,0 +1,115 @@
|
||||
#lang racket/base
|
||||
|
||||
(require rackunit "../stx.rkt" "check-values.rkt"
|
||||
(for-syntax racket/base))
|
||||
|
||||
;; Works on fully wrapped, non-wrapped, and partially
|
||||
;; wrapped values, and it checks that the the inputs
|
||||
;; are wrapped in all the same places. It checks scopes,
|
||||
;; but it does not check source location.
|
||||
(define-binary-check (check-stx=? stx=? actual expected))
|
||||
|
||||
(define (stx=? a b)
|
||||
(cond
|
||||
[(and (identifier? a) (identifier? b))
|
||||
(bound-identifier=? a b)]
|
||||
[(and (syntax? a) (syntax? b))
|
||||
(and (bound-identifier=? (datum->syntax a '||) (datum->syntax b '||))
|
||||
(stx=? (syntax-e a) (syntax-e b)))]
|
||||
[else
|
||||
(equal?/recur a b stx=?)]))
|
||||
|
||||
(define-syntax check-values-stx=?
|
||||
(lambda (stx)
|
||||
(syntax-case stx []
|
||||
[(_ actual-expr expected-expr)
|
||||
(syntax/loc stx
|
||||
(check/values check-stx=? actual-expr expected-expr))])))
|
||||
|
||||
;; ---------------------------------------------------------
|
||||
|
||||
;; Predicates
|
||||
|
||||
(check-pred stx-xexpr? "A leaf on a string")
|
||||
(check-pred stx-xexpr? #'"A leaf in syntax")
|
||||
(check-pred stx-xexpr? #'(div))
|
||||
(check-pred stx-xexpr? #'(div ((id "top")) "Hello" (p "World")))
|
||||
(check-pred stx-xexpr? `(div ((id ,#'"top")) "Hello" ,#'(p "World")))
|
||||
|
||||
(check-false (stx-txexpr? "A leaf without a tag"))
|
||||
(check-pred stx-txexpr? '(div))
|
||||
(check-pred stx-txexpr? #'(div))
|
||||
(check-pred stx-txexpr? #'(div ((id "top")) "Hello" (p "World")))
|
||||
(check-pred stx-txexpr? `(div ((id ,#'"top")) "Hello" ,#'(p "World")))
|
||||
|
||||
(check-pred stx-txexpr-tag? 'div)
|
||||
(check-pred stx-txexpr-tag? #'div)
|
||||
(check-pred stx-txexpr-tag? 'this-is-something-else)
|
||||
(check-pred stx-txexpr-tag? #'this-is-something-else)
|
||||
|
||||
(check-pred stx-txexpr-attrs? '())
|
||||
(check-pred stx-txexpr-attrs? #'())
|
||||
(check-pred stx-txexpr-attrs? '((id "top") (style "color: blue")))
|
||||
(check-pred stx-txexpr-attrs? #'((id "top") (style "color: blue")))
|
||||
(check-pred stx-txexpr-attrs? `((id "top") (style ,#'"color: blue")))
|
||||
|
||||
;; ---------------------------------------------------------
|
||||
|
||||
;; Accessors
|
||||
|
||||
(check-values-stx=? (stx-txexpr->values '(p))
|
||||
(values 'p null null))
|
||||
(check-values-stx=? (stx-txexpr->values '(p "foo"))
|
||||
(values 'p null '("foo")))
|
||||
(check-values-stx=? (stx-txexpr->values '(p ((key "value"))))
|
||||
(values 'p '((key "value")) null))
|
||||
(check-values-stx=? (stx-txexpr->values '(p ((key "value")) "foo"))
|
||||
(values 'p '((key "value")) '("foo")))
|
||||
|
||||
(check-values-stx=? (stx-txexpr->values #'(p))
|
||||
(values #'p null null))
|
||||
(check-values-stx=? (stx-txexpr->values #'(p "foo"))
|
||||
(values #'p null (list #'"foo")))
|
||||
(check-values-stx=? (stx-txexpr->values #'(p ((key "value"))))
|
||||
(values #'p #'((key "value")) null))
|
||||
(check-values-stx=? (stx-txexpr->values #'(p ((key "value")) "foo"))
|
||||
(values #'p #'((key "value")) (list #'"foo")))
|
||||
|
||||
(check-values-stx=? (stx-txexpr->values `(,#'p))
|
||||
(values #'p null null))
|
||||
(check-values-stx=? (stx-txexpr->values `(p ,#'"foo"))
|
||||
(values 'p null (list #'"foo")))
|
||||
(check-values-stx=? (stx-txexpr->values `(p ((,#'key "value")) . ,#'("foo")))
|
||||
(values 'p `((,#'key "value")) (list #'"foo")))
|
||||
|
||||
|
||||
(check-stx=? (stx-txexpr-tag '(p ((key "value"))"foo" (em "square")))
|
||||
'p)
|
||||
(check-stx=? (stx-txexpr-tag #'(p ((key "value"))"foo" (em "square")))
|
||||
#'p)
|
||||
|
||||
(check-stx=? (stx-txexpr-attrs '(p ((key "value"))"foo" "bar" (em "square")))
|
||||
'((key "value")))
|
||||
(check-stx=? (stx-txexpr-attrs #'(p ((key "value"))"foo" "bar" (em "square")))
|
||||
#'((key "value")))
|
||||
(check-stx=? (stx-txexpr-attrs '(p "foo" "bar" (em "square")))
|
||||
'())
|
||||
(check-stx=? (stx-txexpr-attrs #'(p "foo" "bar" (em "square")))
|
||||
'())
|
||||
|
||||
(check-stx=? (stx-txexpr-elements '(p "foo" "bar" (em "square")))
|
||||
'("foo" "bar" (em "square")))
|
||||
(check-stx=? (stx-txexpr-elements #'(p "foo" "bar" (em "square")))
|
||||
(list #'"foo" #'"bar" #'(em "square")))
|
||||
|
||||
(check-stx=? (stx-txexpr-elements '(p ((k "v"))"foo" "bar" (em "square")))
|
||||
'("foo" "bar" (em "square")))
|
||||
(check-stx=? (stx-txexpr-elements #'(p ((k "v"))"foo" "bar" (em "square")))
|
||||
(list #'"foo" #'"bar" #'(em "square")))
|
||||
(check-stx=? (stx-txexpr-elements #'(p ((k "v"))"foo" . ("bar" (em "square"))))
|
||||
(list #'"foo" #'"bar" #'(em "square")))
|
||||
(check-stx=? (stx-txexpr-elements `(p ((k "v"))"foo" .,#'("bar" (em "square"))))
|
||||
(list "foo" #'"bar" #'(em "square")))
|
||||
|
||||
;; ---------------------------------------------------------
|
||||
|
||||
Loading…
Reference in New Issue