forked from lda/telodendria
Jordan Bancino
1fee47a628
This pull request also requires the use of the external [Cytoplasm](/Telodendria/Cytoplasm) repository by removing the in-tree copy of Cytoplasm. The increased modularity requires a little more complex build process, but is overall better. Closes #19 The appropriate documentation has been updated. Closes #18 --- Please review the developer certificate of origin: 1. The contribution was created in whole or in part by me, and I have the right to submit it under the open source licenses of the Telodendria project; or 1. The contribution is based upon a previous work that, to the best of my knowledge, is covered under an appropriate open source license and I have the right under that license to submit that work with modifications, whether created in whole or in part by me, under the Telodendria project license; or 1. The contribution was provided directly to me by some other person who certified (1), (2), or (3), and I have not modified it. 1. I understand and agree that this project and the contribution are made public and that a record of the contribution—including all personal information I submit with it—is maintained indefinitely and may be redistributed consistent with this project or the open source licenses involved. - [x] I have read the Telodendria Project development certificate of origin, and I certify that I have permission to submit this patch under the conditions specified in it. Reviewed-on: Telodendria/Telodendria#38
90 lines
3 KiB
C
90 lines
3 KiB
C
/*
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* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef TELODENDRIA_CANONICALJSON_H
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#define TELODENDRIA_CANONICALJSON_H
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/***
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* @Nm CanonicalJson
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* @Nd An extension of the JSON API that produces the Matrix spec's canonical JSON.
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* @Dd November 30 2022
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* @Xr Json
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*
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* This API is an extension of
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* .Xr json 3
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* that is specifically designed to produce the Matrix specification's
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* "canonical" JSON.
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* .Pp
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* Canonical JSON is defined as JSON that:
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* .Bl -bullet -offset indent
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* .It
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* Does not have any unecessary whitespace.
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* .It
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* Has all object key lexicographically sorted.
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* .It
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* Does not contain any floating point numerical values.
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* .El
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* .Pp
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* The regular JSON encoder has no such rules, because normally they
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* are not needed. However, Canonical JSON is needed in some cases to
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* consistently sign JSON objects.
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*/
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#include <stdio.h>
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#include <Cytoplasm/HashMap.h>
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#include <Cytoplasm/Stream.h>
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#include <Cytoplasm/Json.h>
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/**
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* Encode a JSON object following the rules of Canonical JSON. See the
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* documentation for
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* .Fn JsonEncode ,
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* documented in
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* .Xr Json 3
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* for more details on how JSON encoding operates. This function exists
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* as an alternative to
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* .Fn JsonEncode ,
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* but should not be preferred to it in most circumstances. It is a lot
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* more costly, as it must lexicographically sort all keys and strip
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* out float values. If at all possible, use
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* .Fn JsonEncode ,
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* because it is much cheaper both in terms of memory and CPU time.
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* .Pp
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* This function returns the number of bytes written to the
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* stream, just like
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* .Fn JsonEncode .
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*/
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extern int CanonicalJsonEncode(HashMap *, Stream *);
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/**
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* Encode a JSON value following the rules of Canonical JSON.
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* See the documentation for
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* .Fn JsonEncodeValue ,
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* documented in
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* .Xr Json 3 .
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*/
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extern int CanonicalJsonEncodeValue(JsonValue *, Stream *);
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#endif /* TELODENDRIA_CANONICALJSON_H */
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