initial
This commit is contained in:
Fedor Indutnyy
commit
ded04329f4
31
.github/workflows/ci.yml
vendored
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31
.github/workflows/ci.yml
vendored
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@ -0,0 +1,31 @@
|
||||
name: CI
|
||||
|
||||
on:
|
||||
push:
|
||||
branches: [ main ]
|
||||
pull_request:
|
||||
branches: [ main ]
|
||||
|
||||
env:
|
||||
CARGO_TERM_COLOR: always
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||||
|
||||
jobs:
|
||||
build:
|
||||
runs-on: ubuntu-latest
|
||||
|
||||
steps:
|
||||
- uses: actions/checkout@v3
|
||||
- name: Build
|
||||
run: cargo build --verbose
|
||||
- name: Build extension
|
||||
run: cargo build --verbose --features extension
|
||||
- name: Run tests
|
||||
run: cargo test --verbose --features extension
|
||||
|
||||
fmt:
|
||||
runs-on: ubuntu-latest
|
||||
|
||||
steps:
|
||||
- uses: actions/checkout@v3
|
||||
- name: Rustfmt
|
||||
run: cargo fmt --check
|
||||
1
.gitignore
vendored
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1
.gitignore
vendored
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@ -0,0 +1 @@
|
||||
/target
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||||
631
Cargo.lock
generated
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631
Cargo.lock
generated
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@ -0,0 +1,631 @@
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||||
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||||
|
||||
[[package]]
|
||||
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|
||||
dependencies = [
|
||||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
||||
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||||
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
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||||
|
||||
[[package]]
|
||||
name = "serde"
|
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|
||||
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|
||||
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|
||||
|
||||
[[package]]
|
||||
name = "serde_cbor"
|
||||
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|
||||
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|
||||
checksum = "2bef2ebfde456fb76bbcf9f59315333decc4fda0b2b44b420243c11e0f5ec1f5"
|
||||
dependencies = [
|
||||
"half",
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_derive"
|
||||
version = "1.0.152"
|
||||
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|
||||
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|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_json"
|
||||
version = "1.0.91"
|
||||
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||||
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||||
dependencies = [
|
||||
"itoa 1.0.5",
|
||||
"ryu",
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "signal-tokenizer"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"criterion",
|
||||
"libc",
|
||||
"unicode-normalization",
|
||||
"unicode-segmentation",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "1.0.107"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
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||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "textwrap"
|
||||
version = "0.11.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
|
||||
dependencies = [
|
||||
"unicode-width",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tinytemplate"
|
||||
version = "1.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "be4d6b5f19ff7664e8c98d03e2139cb510db9b0a60b55f8e8709b689d939b6bc"
|
||||
dependencies = [
|
||||
"serde",
|
||||
"serde_json",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tinyvec"
|
||||
version = "1.6.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
|
||||
dependencies = [
|
||||
"tinyvec_macros",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tinyvec_macros"
|
||||
version = "0.1.0"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
[[package]]
|
||||
name = "unicode-ident"
|
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version = "1.0.6"
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|
||||
[[package]]
|
||||
name = "unicode-normalization"
|
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version = "0.1.22"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c5713f0fc4b5db668a2ac63cdb7bb4469d8c9fed047b1d0292cc7b0ce2ba921"
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dependencies = [
|
||||
"tinyvec",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-segmentation"
|
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version = "1.10.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
[[package]]
|
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name = "unicode-width"
|
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version = "0.1.10"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
|
||||
|
||||
[[package]]
|
||||
name = "walkdir"
|
||||
version = "2.3.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "808cf2735cd4b6866113f648b791c6adc5714537bc222d9347bb203386ffda56"
|
||||
dependencies = [
|
||||
"same-file",
|
||||
"winapi",
|
||||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen"
|
||||
version = "0.2.83"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "eaf9f5aceeec8be17c128b2e93e031fb8a4d469bb9c4ae2d7dc1888b26887268"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"wasm-bindgen-macro",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-backend"
|
||||
version = "0.2.83"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "4c8ffb332579b0557b52d268b91feab8df3615f265d5270fec2a8c95b17c1142"
|
||||
dependencies = [
|
||||
"bumpalo",
|
||||
"log",
|
||||
"once_cell",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro"
|
||||
version = "0.2.83"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "052be0f94026e6cbc75cdefc9bae13fd6052cdcaf532fa6c45e7ae33a1e6c810"
|
||||
dependencies = [
|
||||
"quote",
|
||||
"wasm-bindgen-macro-support",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro-support"
|
||||
version = "0.2.83"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
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dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-backend",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-shared"
|
||||
version = "0.2.83"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"
|
||||
|
||||
[[package]]
|
||||
name = "web-sys"
|
||||
version = "0.3.60"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bcda906d8be16e728fd5adc5b729afad4e444e106ab28cd1c7256e54fa61510f"
|
||||
dependencies = [
|
||||
"js-sys",
|
||||
"wasm-bindgen",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.3.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||
dependencies = [
|
||||
"winapi-i686-pc-windows-gnu",
|
||||
"winapi-x86_64-pc-windows-gnu",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-i686-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-util"
|
||||
version = "0.1.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
|
||||
dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
33
Cargo.toml
Normal file
33
Cargo.toml
Normal file
@ -0,0 +1,33 @@
|
||||
#
|
||||
# Copyright (C) 2023 Signal Messenger, LLC.
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
#
|
||||
|
||||
[package]
|
||||
name = "signal-tokenizer"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
license = "AGPL-3.0-only"
|
||||
|
||||
[lib]
|
||||
crate-type = ["rlib", "staticlib"]
|
||||
|
||||
[profile.release]
|
||||
lto = true
|
||||
|
||||
[dependencies]
|
||||
unicode-segmentation = "1.10.1"
|
||||
unicode-normalization = "0.1.22"
|
||||
# libc without `std`
|
||||
libc = { version = "0.2", "default-features" = false, features = [] }
|
||||
|
||||
[dev-dependencies]
|
||||
criterion = "0.3"
|
||||
|
||||
[features]
|
||||
default = []
|
||||
extension = []
|
||||
|
||||
[[bench]]
|
||||
name = "tokenizer"
|
||||
harness = false
|
||||
661
LICENSE
Normal file
661
LICENSE
Normal file
@ -0,0 +1,661 @@
|
||||
GNU AFFERO GENERAL PUBLIC LICENSE
|
||||
Version 3, 19 November 2007
|
||||
|
||||
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The GNU Affero General Public License is a free, copyleft license for
|
||||
software and other kinds of works, specifically designed to ensure
|
||||
cooperation with the community in the case of network server software.
|
||||
|
||||
The licenses for most software and other practical works are designed
|
||||
to take away your freedom to share and change the works. By contrast,
|
||||
our General Public Licenses are intended to guarantee your freedom to
|
||||
share and change all versions of a program--to make sure it remains free
|
||||
software for all its users.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Our General Public Licenses are designed to make sure that you
|
||||
have the freedom to distribute copies of free software (and charge for
|
||||
them if you wish), that you receive source code or can get it if you
|
||||
want it, that you can change the software or use pieces of it in new
|
||||
free programs, and that you know you can do these things.
|
||||
|
||||
Developers that use our General Public Licenses protect your rights
|
||||
with two steps: (1) assert copyright on the software, and (2) offer
|
||||
you this License which gives you legal permission to copy, distribute
|
||||
and/or modify the software.
|
||||
|
||||
A secondary benefit of defending all users' freedom is that
|
||||
improvements made in alternate versions of the program, if they
|
||||
receive widespread use, become available for other developers to
|
||||
incorporate. Many developers of free software are heartened and
|
||||
encouraged by the resulting cooperation. However, in the case of
|
||||
software used on network servers, this result may fail to come about.
|
||||
The GNU General Public License permits making a modified version and
|
||||
letting the public access it on a server without ever releasing its
|
||||
source code to the public.
|
||||
|
||||
The GNU Affero General Public License is designed specifically to
|
||||
ensure that, in such cases, the modified source code becomes available
|
||||
to the community. It requires the operator of a network server to
|
||||
provide the source code of the modified version running there to the
|
||||
users of that server. Therefore, public use of a modified version, on
|
||||
a publicly accessible server, gives the public access to the source
|
||||
code of the modified version.
|
||||
|
||||
An older license, called the Affero General Public License and
|
||||
published by Affero, was designed to accomplish similar goals. This is
|
||||
a different license, not a version of the Affero GPL, but Affero has
|
||||
released a new version of the Affero GPL which permits relicensing under
|
||||
this license.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
TERMS AND CONDITIONS
|
||||
|
||||
0. Definitions.
|
||||
|
||||
"This License" refers to version 3 of the GNU Affero General Public License.
|
||||
|
||||
"Copyright" also means copyright-like laws that apply to other kinds of
|
||||
works, such as semiconductor masks.
|
||||
|
||||
"The Program" refers to any copyrightable work licensed under this
|
||||
License. Each licensee is addressed as "you". "Licensees" and
|
||||
"recipients" may be individuals or organizations.
|
||||
|
||||
To "modify" a work means to copy from or adapt all or part of the work
|
||||
in a fashion requiring copyright permission, other than the making of an
|
||||
exact copy. The resulting work is called a "modified version" of the
|
||||
earlier work or a work "based on" the earlier work.
|
||||
|
||||
A "covered work" means either the unmodified Program or a work based
|
||||
on the Program.
|
||||
|
||||
To "propagate" a work means to do anything with it that, without
|
||||
permission, would make you directly or secondarily liable for
|
||||
infringement under applicable copyright law, except executing it on a
|
||||
computer or modifying a private copy. Propagation includes copying,
|
||||
distribution (with or without modification), making available to the
|
||||
public, and in some countries other activities as well.
|
||||
|
||||
To "convey" a work means any kind of propagation that enables other
|
||||
parties to make or receive copies. Mere interaction with a user through
|
||||
a computer network, with no transfer of a copy, is not conveying.
|
||||
|
||||
An interactive user interface displays "Appropriate Legal Notices"
|
||||
to the extent that it includes a convenient and prominently visible
|
||||
feature that (1) displays an appropriate copyright notice, and (2)
|
||||
tells the user that there is no warranty for the work (except to the
|
||||
extent that warranties are provided), that licensees may convey the
|
||||
work under this License, and how to view a copy of this License. If
|
||||
the interface presents a list of user commands or options, such as a
|
||||
menu, a prominent item in the list meets this criterion.
|
||||
|
||||
1. Source Code.
|
||||
|
||||
The "source code" for a work means the preferred form of the work
|
||||
for making modifications to it. "Object code" means any non-source
|
||||
form of a work.
|
||||
|
||||
A "Standard Interface" means an interface that either is an official
|
||||
standard defined by a recognized standards body, or, in the case of
|
||||
interfaces specified for a particular programming language, one that
|
||||
is widely used among developers working in that language.
|
||||
|
||||
The "System Libraries" of an executable work include anything, other
|
||||
than the work as a whole, that (a) is included in the normal form of
|
||||
packaging a Major Component, but which is not part of that Major
|
||||
Component, and (b) serves only to enable use of the work with that
|
||||
Major Component, or to implement a Standard Interface for which an
|
||||
implementation is available to the public in source code form. A
|
||||
"Major Component", in this context, means a major essential component
|
||||
(kernel, window system, and so on) of the specific operating system
|
||||
(if any) on which the executable work runs, or a compiler used to
|
||||
produce the work, or an object code interpreter used to run it.
|
||||
|
||||
The "Corresponding Source" for a work in object code form means all
|
||||
the source code needed to generate, install, and (for an executable
|
||||
work) run the object code and to modify the work, including scripts to
|
||||
control those activities. However, it does not include the work's
|
||||
System Libraries, or general-purpose tools or generally available free
|
||||
programs which are used unmodified in performing those activities but
|
||||
which are not part of the work. For example, Corresponding Source
|
||||
includes interface definition files associated with source files for
|
||||
the work, and the source code for shared libraries and dynamically
|
||||
linked subprograms that the work is specifically designed to require,
|
||||
such as by intimate data communication or control flow between those
|
||||
subprograms and other parts of the work.
|
||||
|
||||
The Corresponding Source need not include anything that users
|
||||
can regenerate automatically from other parts of the Corresponding
|
||||
Source.
|
||||
|
||||
The Corresponding Source for a work in source code form is that
|
||||
same work.
|
||||
|
||||
2. Basic Permissions.
|
||||
|
||||
All rights granted under this License are granted for the term of
|
||||
copyright on the Program, and are irrevocable provided the stated
|
||||
conditions are met. This License explicitly affirms your unlimited
|
||||
permission to run the unmodified Program. The output from running a
|
||||
covered work is covered by this License only if the output, given its
|
||||
content, constitutes a covered work. This License acknowledges your
|
||||
rights of fair use or other equivalent, as provided by copyright law.
|
||||
|
||||
You may make, run and propagate covered works that you do not
|
||||
convey, without conditions so long as your license otherwise remains
|
||||
in force. You may convey covered works to others for the sole purpose
|
||||
of having them make modifications exclusively for you, or provide you
|
||||
with facilities for running those works, provided that you comply with
|
||||
the terms of this License in conveying all material for which you do
|
||||
not control copyright. Those thus making or running the covered works
|
||||
for you must do so exclusively on your behalf, under your direction
|
||||
and control, on terms that prohibit them from making any copies of
|
||||
your copyrighted material outside their relationship with you.
|
||||
|
||||
Conveying under any other circumstances is permitted solely under
|
||||
the conditions stated below. Sublicensing is not allowed; section 10
|
||||
makes it unnecessary.
|
||||
|
||||
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
||||
|
||||
No covered work shall be deemed part of an effective technological
|
||||
measure under any applicable law fulfilling obligations under article
|
||||
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
||||
similar laws prohibiting or restricting circumvention of such
|
||||
measures.
|
||||
|
||||
When you convey a covered work, you waive any legal power to forbid
|
||||
circumvention of technological measures to the extent such circumvention
|
||||
is effected by exercising rights under this License with respect to
|
||||
the covered work, and you disclaim any intention to limit operation or
|
||||
modification of the work as a means of enforcing, against the work's
|
||||
users, your or third parties' legal rights to forbid circumvention of
|
||||
technological measures.
|
||||
|
||||
4. Conveying Verbatim Copies.
|
||||
|
||||
You may convey verbatim copies of the Program's source code as you
|
||||
receive it, in any medium, provided that you conspicuously and
|
||||
appropriately publish on each copy an appropriate copyright notice;
|
||||
keep intact all notices stating that this License and any
|
||||
non-permissive terms added in accord with section 7 apply to the code;
|
||||
keep intact all notices of the absence of any warranty; and give all
|
||||
recipients a copy of this License along with the Program.
|
||||
|
||||
You may charge any price or no price for each copy that you convey,
|
||||
and you may offer support or warranty protection for a fee.
|
||||
|
||||
5. Conveying Modified Source Versions.
|
||||
|
||||
You may convey a work based on the Program, or the modifications to
|
||||
produce it from the Program, in the form of source code under the
|
||||
terms of section 4, provided that you also meet all of these conditions:
|
||||
|
||||
a) The work must carry prominent notices stating that you modified
|
||||
it, and giving a relevant date.
|
||||
|
||||
b) The work must carry prominent notices stating that it is
|
||||
released under this License and any conditions added under section
|
||||
7. This requirement modifies the requirement in section 4 to
|
||||
"keep intact all notices".
|
||||
|
||||
c) You must license the entire work, as a whole, under this
|
||||
License to anyone who comes into possession of a copy. This
|
||||
License will therefore apply, along with any applicable section 7
|
||||
additional terms, to the whole of the work, and all its parts,
|
||||
regardless of how they are packaged. This License gives no
|
||||
permission to license the work in any other way, but it does not
|
||||
invalidate such permission if you have separately received it.
|
||||
|
||||
d) If the work has interactive user interfaces, each must display
|
||||
Appropriate Legal Notices; however, if the Program has interactive
|
||||
interfaces that do not display Appropriate Legal Notices, your
|
||||
work need not make them do so.
|
||||
|
||||
A compilation of a covered work with other separate and independent
|
||||
works, which are not by their nature extensions of the covered work,
|
||||
and which are not combined with it such as to form a larger program,
|
||||
in or on a volume of a storage or distribution medium, is called an
|
||||
"aggregate" if the compilation and its resulting copyright are not
|
||||
used to limit the access or legal rights of the compilation's users
|
||||
beyond what the individual works permit. Inclusion of a covered work
|
||||
in an aggregate does not cause this License to apply to the other
|
||||
parts of the aggregate.
|
||||
|
||||
6. Conveying Non-Source Forms.
|
||||
|
||||
You may convey a covered work in object code form under the terms
|
||||
of sections 4 and 5, provided that you also convey the
|
||||
machine-readable Corresponding Source under the terms of this License,
|
||||
in one of these ways:
|
||||
|
||||
a) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by the
|
||||
Corresponding Source fixed on a durable physical medium
|
||||
customarily used for software interchange.
|
||||
|
||||
b) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by a
|
||||
written offer, valid for at least three years and valid for as
|
||||
long as you offer spare parts or customer support for that product
|
||||
model, to give anyone who possesses the object code either (1) a
|
||||
copy of the Corresponding Source for all the software in the
|
||||
product that is covered by this License, on a durable physical
|
||||
medium customarily used for software interchange, for a price no
|
||||
more than your reasonable cost of physically performing this
|
||||
conveying of source, or (2) access to copy the
|
||||
Corresponding Source from a network server at no charge.
|
||||
|
||||
c) Convey individual copies of the object code with a copy of the
|
||||
written offer to provide the Corresponding Source. This
|
||||
alternative is allowed only occasionally and noncommercially, and
|
||||
only if you received the object code with such an offer, in accord
|
||||
with subsection 6b.
|
||||
|
||||
d) Convey the object code by offering access from a designated
|
||||
place (gratis or for a charge), and offer equivalent access to the
|
||||
Corresponding Source in the same way through the same place at no
|
||||
further charge. You need not require recipients to copy the
|
||||
Corresponding Source along with the object code. If the place to
|
||||
copy the object code is a network server, the Corresponding Source
|
||||
may be on a different server (operated by you or a third party)
|
||||
that supports equivalent copying facilities, provided you maintain
|
||||
clear directions next to the object code saying where to find the
|
||||
Corresponding Source. Regardless of what server hosts the
|
||||
Corresponding Source, you remain obligated to ensure that it is
|
||||
available for as long as needed to satisfy these requirements.
|
||||
|
||||
e) Convey the object code using peer-to-peer transmission, provided
|
||||
you inform other peers where the object code and Corresponding
|
||||
Source of the work are being offered to the general public at no
|
||||
charge under subsection 6d.
|
||||
|
||||
A separable portion of the object code, whose source code is excluded
|
||||
from the Corresponding Source as a System Library, need not be
|
||||
included in conveying the object code work.
|
||||
|
||||
A "User Product" is either (1) a "consumer product", which means any
|
||||
tangible personal property which is normally used for personal, family,
|
||||
or household purposes, or (2) anything designed or sold for incorporation
|
||||
into a dwelling. In determining whether a product is a consumer product,
|
||||
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||
product received by a particular user, "normally used" refers to a
|
||||
typical or common use of that class of product, regardless of the status
|
||||
of the particular user or of the way in which the particular user
|
||||
actually uses, or expects or is expected to use, the product. A product
|
||||
is a consumer product regardless of whether the product has substantial
|
||||
commercial, industrial or non-consumer uses, unless such uses represent
|
||||
the only significant mode of use of the product.
|
||||
|
||||
"Installation Information" for a User Product means any methods,
|
||||
procedures, authorization keys, or other information required to install
|
||||
and execute modified versions of a covered work in that User Product from
|
||||
a modified version of its Corresponding Source. The information must
|
||||
suffice to ensure that the continued functioning of the modified object
|
||||
code is in no case prevented or interfered with solely because
|
||||
modification has been made.
|
||||
|
||||
If you convey an object code work under this section in, or with, or
|
||||
specifically for use in, a User Product, and the conveying occurs as
|
||||
part of a transaction in which the right of possession and use of the
|
||||
User Product is transferred to the recipient in perpetuity or for a
|
||||
fixed term (regardless of how the transaction is characterized), the
|
||||
Corresponding Source conveyed under this section must be accompanied
|
||||
by the Installation Information. But this requirement does not apply
|
||||
if neither you nor any third party retains the ability to install
|
||||
modified object code on the User Product (for example, the work has
|
||||
been installed in ROM).
|
||||
|
||||
The requirement to provide Installation Information does not include a
|
||||
requirement to continue to provide support service, warranty, or updates
|
||||
for a work that has been modified or installed by the recipient, or for
|
||||
the User Product in which it has been modified or installed. Access to a
|
||||
network may be denied when the modification itself materially and
|
||||
adversely affects the operation of the network or violates the rules and
|
||||
protocols for communication across the network.
|
||||
|
||||
Corresponding Source conveyed, and Installation Information provided,
|
||||
in accord with this section must be in a format that is publicly
|
||||
documented (and with an implementation available to the public in
|
||||
source code form), and must require no special password or key for
|
||||
unpacking, reading or copying.
|
||||
|
||||
7. Additional Terms.
|
||||
|
||||
"Additional permissions" are terms that supplement the terms of this
|
||||
License by making exceptions from one or more of its conditions.
|
||||
Additional permissions that are applicable to the entire Program shall
|
||||
be treated as though they were included in this License, to the extent
|
||||
that they are valid under applicable law. If additional permissions
|
||||
apply only to part of the Program, that part may be used separately
|
||||
under those permissions, but the entire Program remains governed by
|
||||
this License without regard to the additional permissions.
|
||||
|
||||
When you convey a copy of a covered work, you may at your option
|
||||
remove any additional permissions from that copy, or from any part of
|
||||
it. (Additional permissions may be written to require their own
|
||||
removal in certain cases when you modify the work.) You may place
|
||||
additional permissions on material, added by you to a covered work,
|
||||
for which you have or can give appropriate copyright permission.
|
||||
|
||||
Notwithstanding any other provision of this License, for material you
|
||||
add to a covered work, you may (if authorized by the copyright holders of
|
||||
that material) supplement the terms of this License with terms:
|
||||
|
||||
a) Disclaiming warranty or limiting liability differently from the
|
||||
terms of sections 15 and 16 of this License; or
|
||||
|
||||
b) Requiring preservation of specified reasonable legal notices or
|
||||
author attributions in that material or in the Appropriate Legal
|
||||
Notices displayed by works containing it; or
|
||||
|
||||
c) Prohibiting misrepresentation of the origin of that material, or
|
||||
requiring that modified versions of such material be marked in
|
||||
reasonable ways as different from the original version; or
|
||||
|
||||
d) Limiting the use for publicity purposes of names of licensors or
|
||||
authors of the material; or
|
||||
|
||||
e) Declining to grant rights under trademark law for use of some
|
||||
trade names, trademarks, or service marks; or
|
||||
|
||||
f) Requiring indemnification of licensors and authors of that
|
||||
material by anyone who conveys the material (or modified versions of
|
||||
it) with contractual assumptions of liability to the recipient, for
|
||||
any liability that these contractual assumptions directly impose on
|
||||
those licensors and authors.
|
||||
|
||||
All other non-permissive additional terms are considered "further
|
||||
restrictions" within the meaning of section 10. If the Program as you
|
||||
received it, or any part of it, contains a notice stating that it is
|
||||
governed by this License along with a term that is a further
|
||||
restriction, you may remove that term. If a license document contains
|
||||
a further restriction but permits relicensing or conveying under this
|
||||
License, you may add to a covered work material governed by the terms
|
||||
of that license document, provided that the further restriction does
|
||||
not survive such relicensing or conveying.
|
||||
|
||||
If you add terms to a covered work in accord with this section, you
|
||||
must place, in the relevant source files, a statement of the
|
||||
additional terms that apply to those files, or a notice indicating
|
||||
where to find the applicable terms.
|
||||
|
||||
Additional terms, permissive or non-permissive, may be stated in the
|
||||
form of a separately written license, or stated as exceptions;
|
||||
the above requirements apply either way.
|
||||
|
||||
8. Termination.
|
||||
|
||||
You may not propagate or modify a covered work except as expressly
|
||||
provided under this License. Any attempt otherwise to propagate or
|
||||
modify it is void, and will automatically terminate your rights under
|
||||
this License (including any patent licenses granted under the third
|
||||
paragraph of section 11).
|
||||
|
||||
However, if you cease all violation of this License, then your
|
||||
license from a particular copyright holder is reinstated (a)
|
||||
provisionally, unless and until the copyright holder explicitly and
|
||||
finally terminates your license, and (b) permanently, if the copyright
|
||||
holder fails to notify you of the violation by some reasonable means
|
||||
prior to 60 days after the cessation.
|
||||
|
||||
Moreover, your license from a particular copyright holder is
|
||||
reinstated permanently if the copyright holder notifies you of the
|
||||
violation by some reasonable means, this is the first time you have
|
||||
received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
material under section 10.
|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Remote Network Interaction; Use with the GNU General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, if you modify the
|
||||
Program, your modified version must prominently offer all users
|
||||
interacting with it remotely through a computer network (if your version
|
||||
supports such interaction) an opportunity to receive the Corresponding
|
||||
Source of your version by providing access to the Corresponding Source
|
||||
from a network server at no charge, through some standard or customary
|
||||
means of facilitating copying of software. This Corresponding Source
|
||||
shall include the Corresponding Source for any work covered by version 3
|
||||
of the GNU General Public License that is incorporated pursuant to the
|
||||
following paragraph.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the work with which it is combined will remain governed by version
|
||||
3 of the GNU General Public License.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU Affero 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
|
||||
Program specifies that a certain numbered version of the GNU Affero General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU Affero General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU Affero General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU Affero General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU Affero General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Affero General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If your software can interact with users remotely through a computer
|
||||
network, you should also make sure that it provides a way for users to
|
||||
get its source. For example, if your program is a web application, its
|
||||
interface could display a "Source" link that leads users to an archive
|
||||
of the code. There are many ways you could offer source, and different
|
||||
solutions will be better for different programs; see section 13 for the
|
||||
specific requirements.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU AGPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
||||
42
README.md
Normal file
42
README.md
Normal file
@ -0,0 +1,42 @@
|
||||
# Overview
|
||||
|
||||
Signal-FTS5-Extension is a C ABI library which exposes a
|
||||
[FTS5](https://www.sqlite.org/fts5.html) tokenizer function named
|
||||
`signal_tokenizer` that:
|
||||
|
||||
- Segments UTF-8 strings into words according to
|
||||
[Unicode standard](http://www.unicode.org/reports/tr29/)
|
||||
- Normalizes and removes diacritics from words
|
||||
- Converts words to lower case
|
||||
|
||||
When used as a custom FTS5 tokenizer this enables application to support CJK
|
||||
symbols in full-text search.
|
||||
|
||||
# Extension Build/Usage Example
|
||||
|
||||
```sh
|
||||
cargo rustc --features extension -- --crate-type=cdylib
|
||||
```
|
||||
|
||||
Load extension from `./target/release/libsignal_tokenizer.dylib`.
|
||||
|
||||
```sql
|
||||
CREATE VIRTUAL TABLE
|
||||
fts
|
||||
USING fts5(content, tokenize='signal_tokenizer')
|
||||
```
|
||||
|
||||
# Generating headers
|
||||
|
||||
```sh
|
||||
cbindgen --profile release . -o target/release/fts5-tokenizer.h
|
||||
```
|
||||
|
||||
# Legal things
|
||||
|
||||
## License
|
||||
|
||||
Copyright 2023 Signal Messenger, LLC.
|
||||
|
||||
Licensed under the AGPLv3: http://www.gnu.org/licenses/agpl-3.0.html
|
||||
|
||||
57
benches/tokenizer.rs
Normal file
57
benches/tokenizer.rs
Normal file
@ -0,0 +1,57 @@
|
||||
//
|
||||
// Copyright 2023 Signal Messenger, LLC.
|
||||
// SPDX-License-Identifier: AGPL-3.0-only
|
||||
//
|
||||
|
||||
use core::ptr::null_mut;
|
||||
use criterion::{black_box, criterion_group, criterion_main, Criterion};
|
||||
use libc::{c_char, c_int, c_void};
|
||||
use signal_tokenizer::{signal_fts5_tokenize, Fts5Tokenizer, SQLITE_OK};
|
||||
|
||||
extern "C" fn noop_callback(
|
||||
_ctx: *mut c_void,
|
||||
_flags: c_int,
|
||||
_token: *const c_char,
|
||||
_token_len: c_int,
|
||||
_start: c_int,
|
||||
_end: c_int,
|
||||
) -> c_int {
|
||||
return SQLITE_OK;
|
||||
}
|
||||
|
||||
fn tokenize(input: &str) {
|
||||
signal_fts5_tokenize(
|
||||
&mut Fts5Tokenizer {},
|
||||
null_mut(),
|
||||
0,
|
||||
input.as_bytes().as_ptr() as *const c_char,
|
||||
input.len() as i32,
|
||||
noop_callback,
|
||||
);
|
||||
}
|
||||
|
||||
fn fts5_benchmark(c: &mut Criterion) {
|
||||
let latin_lower_60kb = "hello ".repeat(10 * 1024);
|
||||
let latin_upper_60kb = "HELLO ".repeat(10 * 1024);
|
||||
let diacritics_60kb = "öplö ".repeat(10 * 1024);
|
||||
let cjk_60kb = "你好".repeat(10 * 1024);
|
||||
|
||||
c.bench_function("tokenize latin lowercase 60kb", |b| {
|
||||
return b.iter(|| tokenize(black_box(&latin_lower_60kb)));
|
||||
});
|
||||
|
||||
c.bench_function("tokenize latin uppercase 60kb", |b| {
|
||||
return b.iter(|| tokenize(black_box(&latin_upper_60kb)));
|
||||
});
|
||||
|
||||
c.bench_function("tokenize diacritics 60kb", |b| {
|
||||
return b.iter(|| tokenize(black_box(&diacritics_60kb)));
|
||||
});
|
||||
|
||||
c.bench_function("tokenize cjk 60kb", |b| {
|
||||
return b.iter(|| tokenize(black_box(&cjk_60kb)));
|
||||
});
|
||||
}
|
||||
|
||||
criterion_group!(benches, fts5_benchmark);
|
||||
criterion_main!(benches);
|
||||
30
cbindgen.toml
Normal file
30
cbindgen.toml
Normal file
@ -0,0 +1,30 @@
|
||||
#
|
||||
# Copyright (C) 2023 Signal Messenger, LLC.
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
#
|
||||
|
||||
language = "C"
|
||||
|
||||
header = "/*\nCopyright (C) 2023 Signal Messenger, LLC.\nSPDX-License-Identifier: AGPL-3.0-only\n*/\n"
|
||||
|
||||
include_guard = "SIGNAL_FTS5_TOKENIZER_H_"
|
||||
|
||||
autogen_warning = "/* This file was automatically generated by cbindgen */"
|
||||
|
||||
style = "type"
|
||||
|
||||
cpp_compat = true
|
||||
|
||||
[enum]
|
||||
prefix_with_name = true
|
||||
|
||||
[export]
|
||||
item_types = ["functions", "opaque", "structs", "typedefs"]
|
||||
|
||||
[export.rename]
|
||||
"Sqlite3" = "sqlite3"
|
||||
"Sqlite3APIRoutines" = "sqlite3_api_routines"
|
||||
"TokenFunction" = "sqlite3__fts5_token_fn"
|
||||
|
||||
[defines]
|
||||
"feature = extension" = "SIGNAL_FTS5_TOKENIZER_EXTENSION_H_"
|
||||
22
src/common.rs
Normal file
22
src/common.rs
Normal file
@ -0,0 +1,22 @@
|
||||
//
|
||||
// Copyright 2023 Signal Messenger, LLC.
|
||||
// SPDX-License-Identifier: AGPL-3.0-only
|
||||
//
|
||||
|
||||
use libc::{c_char, c_int, c_void};
|
||||
|
||||
pub struct Fts5Tokenizer {}
|
||||
|
||||
// sqlite3.h
|
||||
pub const SQLITE_OK: c_int = 0;
|
||||
pub const SQLITE_INTERNAL: c_int = 2;
|
||||
pub const SQLITE_MISUSE: c_int = 21;
|
||||
|
||||
pub type TokenFunction = extern "C" fn(
|
||||
p_ctx: *mut c_void,
|
||||
t_flags: c_int,
|
||||
p_token: *const c_char,
|
||||
n_token: c_int,
|
||||
i_start: c_int,
|
||||
i_end: c_int,
|
||||
) -> c_int;
|
||||
395
src/extension.rs
Normal file
395
src/extension.rs
Normal file
@ -0,0 +1,395 @@
|
||||
//
|
||||
// Copyright 2023 Signal Messenger, LLC.
|
||||
// SPDX-License-Identifier: AGPL-3.0-only
|
||||
//
|
||||
|
||||
use crate::common::*;
|
||||
use crate::signal_fts5_tokenize;
|
||||
use core::ptr::null_mut;
|
||||
use libc::{c_char, c_int, c_uchar, c_void};
|
||||
|
||||
pub struct Sqlite3 {}
|
||||
struct Sqlite3Stmt {}
|
||||
|
||||
pub const FTS5_API_VERSION: c_int = 2;
|
||||
|
||||
// fts5.h
|
||||
#[repr(C)]
|
||||
struct Fts5TokenizerApi {
|
||||
x_create: extern "C" fn(
|
||||
p_context: *mut c_void,
|
||||
az_arg: *const *const c_uchar,
|
||||
n_arg: c_int,
|
||||
fts5_tokenizer: *mut *mut Fts5Tokenizer,
|
||||
) -> c_int,
|
||||
x_delete: extern "C" fn(fts5_tokenizer: *mut Fts5Tokenizer),
|
||||
x_tokenize: extern "C" fn(
|
||||
tokenizer: *mut Fts5Tokenizer,
|
||||
p_ctx: *mut c_void,
|
||||
flags: c_int,
|
||||
p_text: *const c_char,
|
||||
n_text: c_int,
|
||||
x_token: TokenFunction,
|
||||
) -> c_int,
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
struct FTS5API {
|
||||
i_version: c_int, // Currently always set to 2
|
||||
|
||||
/* Create a new tokenizer */
|
||||
x_create_tokenizer: extern "C" fn(
|
||||
fts5_api: *const FTS5API,
|
||||
z_name: *const c_uchar,
|
||||
p_context: *mut c_void,
|
||||
fts5_tokenizer: *mut Fts5TokenizerApi,
|
||||
x_destroy: extern "C" fn(module: *mut c_void),
|
||||
) -> c_int,
|
||||
}
|
||||
|
||||
// sqlite3ext.h
|
||||
#[repr(C)]
|
||||
pub struct Sqlite3APIRoutines {
|
||||
_aggregate_context: extern "C" fn(),
|
||||
_aggregate_count: extern "C" fn(),
|
||||
_bind_blob: extern "C" fn(),
|
||||
_bind_double: extern "C" fn(),
|
||||
_bind_int: extern "C" fn(),
|
||||
_bind_int64: extern "C" fn(),
|
||||
_bind_null: extern "C" fn(),
|
||||
_bind_parameter_count: extern "C" fn(),
|
||||
_bind_parameter_index: extern "C" fn(),
|
||||
_bind_parameter_name: extern "C" fn(),
|
||||
_bind_text: extern "C" fn(),
|
||||
_bind_text16: extern "C" fn(),
|
||||
_bind_value: extern "C" fn(),
|
||||
_busy_handler: extern "C" fn(),
|
||||
_busy_timeout: extern "C" fn(),
|
||||
_changes: extern "C" fn(),
|
||||
_close: extern "C" fn(),
|
||||
_collation_needed: extern "C" fn(),
|
||||
_collation_needed16: extern "C" fn(),
|
||||
_column_blob: extern "C" fn(),
|
||||
_column_bytes: extern "C" fn(),
|
||||
_column_bytes16: extern "C" fn(),
|
||||
_column_count: extern "C" fn(),
|
||||
_column_database_name: extern "C" fn(),
|
||||
_column_database_name16: extern "C" fn(),
|
||||
_column_decltype: extern "C" fn(),
|
||||
_column_decltype16: extern "C" fn(),
|
||||
_column_double: extern "C" fn(),
|
||||
_column_int: extern "C" fn(),
|
||||
_column_int64: extern "C" fn(),
|
||||
_column_name: extern "C" fn(),
|
||||
_column_name16: extern "C" fn(),
|
||||
_column_origin_name: extern "C" fn(),
|
||||
_column_origin_name16: extern "C" fn(),
|
||||
_column_table_name: extern "C" fn(),
|
||||
_column_table_name16: extern "C" fn(),
|
||||
_column_text: extern "C" fn(),
|
||||
_column_text16: extern "C" fn(),
|
||||
_column_type: extern "C" fn(),
|
||||
_column_value: extern "C" fn(),
|
||||
_commit_hook: extern "C" fn(),
|
||||
_complete: extern "C" fn(),
|
||||
_complete16: extern "C" fn(),
|
||||
_create_collation: extern "C" fn(),
|
||||
_create_collation16: extern "C" fn(),
|
||||
_create_function: extern "C" fn(),
|
||||
_create_function16: extern "C" fn(),
|
||||
_create_module: extern "C" fn(),
|
||||
_data_count: extern "C" fn(),
|
||||
_db_handle: extern "C" fn(),
|
||||
_declare_vtab: extern "C" fn(),
|
||||
_enable_shared_cache: extern "C" fn(),
|
||||
_errcode: extern "C" fn(),
|
||||
_errmsg: extern "C" fn(),
|
||||
_errmsg16: extern "C" fn(),
|
||||
_exec: extern "C" fn(),
|
||||
_expired: extern "C" fn(),
|
||||
finalize: extern "C" fn(stmt: *mut Sqlite3Stmt) -> c_int,
|
||||
_free: extern "C" fn(),
|
||||
_free_table: extern "C" fn(),
|
||||
_get_autocommit: extern "C" fn(),
|
||||
_get_auxdata: extern "C" fn(),
|
||||
_get_table: extern "C" fn(),
|
||||
_global_recover: extern "C" fn(),
|
||||
_interruptx: extern "C" fn(),
|
||||
_last_insert_rowid: extern "C" fn(),
|
||||
_libversion: extern "C" fn(),
|
||||
libversion_number: extern "C" fn() -> c_int,
|
||||
_malloc: extern "C" fn(),
|
||||
_mprintf: extern "C" fn(),
|
||||
_open: extern "C" fn(),
|
||||
_open16: extern "C" fn(),
|
||||
prepare: extern "C" fn(
|
||||
db: *mut Sqlite3,
|
||||
query: *const c_uchar,
|
||||
query_len: c_int,
|
||||
stmt: *mut *mut Sqlite3Stmt,
|
||||
pz_tail: *mut *mut c_uchar,
|
||||
) -> c_int,
|
||||
_prepare16: extern "C" fn(),
|
||||
_profile: extern "C" fn(),
|
||||
_progress_handler: extern "C" fn(),
|
||||
_realloc: extern "C" fn(),
|
||||
_reset: extern "C" fn(),
|
||||
_result_blob: extern "C" fn(),
|
||||
_result_double: extern "C" fn(),
|
||||
_result_error: extern "C" fn(),
|
||||
_result_error16: extern "C" fn(),
|
||||
_result_int: extern "C" fn(),
|
||||
_result_int64: extern "C" fn(),
|
||||
_result_null: extern "C" fn(),
|
||||
_result_text: extern "C" fn(),
|
||||
_result_text16: extern "C" fn(),
|
||||
_result_text16be: extern "C" fn(),
|
||||
_result_text16le: extern "C" fn(),
|
||||
_result_value: extern "C" fn(),
|
||||
_rollback_hook: extern "C" fn(),
|
||||
_set_authorizer: extern "C" fn(),
|
||||
_set_auxdata: extern "C" fn(),
|
||||
_xsnprintf: extern "C" fn(),
|
||||
step: extern "C" fn(stmt: *mut Sqlite3Stmt) -> c_int,
|
||||
_table_column_metadata: extern "C" fn(),
|
||||
_thread_cleanup: extern "C" fn(),
|
||||
_total_changes: extern "C" fn(),
|
||||
_trace: extern "C" fn(),
|
||||
_transfer_bindings: extern "C" fn(),
|
||||
_update_hook: extern "C" fn(),
|
||||
_user_data: extern "C" fn(),
|
||||
_value_blob: extern "C" fn(),
|
||||
_value_bytes: extern "C" fn(),
|
||||
_value_bytes16: extern "C" fn(),
|
||||
_value_double: extern "C" fn(),
|
||||
_value_int: extern "C" fn(),
|
||||
_value_int64: extern "C" fn(),
|
||||
_value_numeric_type: extern "C" fn(),
|
||||
_value_text: extern "C" fn(),
|
||||
_value_text16: extern "C" fn(),
|
||||
_value_text16be: extern "C" fn(),
|
||||
_value_text16le: extern "C" fn(),
|
||||
_value_type: extern "C" fn(),
|
||||
_vmprintf: extern "C" fn(),
|
||||
/* Added ??? */
|
||||
_overload_function: extern "C" fn(),
|
||||
/* Added by 3.3.13 */
|
||||
_prepare_v2: extern "C" fn(),
|
||||
_prepare16_v2: extern "C" fn(),
|
||||
_clear_bindings: extern "C" fn(),
|
||||
/* Added by 3.4.1 */
|
||||
_create_module_v2: extern "C" fn(),
|
||||
/* Added by 3.5.0 */
|
||||
_bind_zeroblob: extern "C" fn(),
|
||||
_blob_bytes: extern "C" fn(),
|
||||
_blob_close: extern "C" fn(),
|
||||
_blob_open: extern "C" fn(),
|
||||
_blob_read: extern "C" fn(),
|
||||
_blob_write: extern "C" fn(),
|
||||
_create_collation_v2: extern "C" fn(),
|
||||
_file_control: extern "C" fn(),
|
||||
_memory_highwater: extern "C" fn(),
|
||||
_memory_used: extern "C" fn(),
|
||||
_mutex_alloc: extern "C" fn(),
|
||||
_mutex_enter: extern "C" fn(),
|
||||
_mutex_free: extern "C" fn(),
|
||||
_mutex_leave: extern "C" fn(),
|
||||
_mutex_try: extern "C" fn(),
|
||||
_open_v2: extern "C" fn(),
|
||||
_release_memory: extern "C" fn(),
|
||||
_result_error_nomem: extern "C" fn(),
|
||||
_result_error_toobig: extern "C" fn(),
|
||||
_sleep: extern "C" fn(),
|
||||
_soft_heap_limit: extern "C" fn(),
|
||||
_vfs_find: extern "C" fn(),
|
||||
_vfs_register: extern "C" fn(),
|
||||
_vfs_unregister: extern "C" fn(),
|
||||
_xthreadsafe: extern "C" fn(),
|
||||
_result_zeroblob: extern "C" fn(),
|
||||
_result_error_code: extern "C" fn(),
|
||||
_test_control: extern "C" fn(),
|
||||
_randomness: extern "C" fn(),
|
||||
_context_db_handle: extern "C" fn(),
|
||||
_extended_result_codes: extern "C" fn(),
|
||||
_limit: extern "C" fn(),
|
||||
_next_stmt: extern "C" fn(),
|
||||
_sql: extern "C" fn(),
|
||||
_status: extern "C" fn(),
|
||||
_backup_finish: extern "C" fn(),
|
||||
_backup_init: extern "C" fn(),
|
||||
_backup_pagecount: extern "C" fn(),
|
||||
_backup_remaining: extern "C" fn(),
|
||||
_backup_step: extern "C" fn(),
|
||||
_compileoption_get: extern "C" fn(),
|
||||
_compileoption_used: extern "C" fn(),
|
||||
_create_function_v2: extern "C" fn(),
|
||||
_db_config: extern "C" fn(),
|
||||
_db_mutex: extern "C" fn(),
|
||||
_db_status: extern "C" fn(),
|
||||
_extended_errcode: extern "C" fn(),
|
||||
_log: extern "C" fn(),
|
||||
_soft_heap_limit64: extern "C" fn(),
|
||||
_sourceid: extern "C" fn(),
|
||||
_stmt_status: extern "C" fn(),
|
||||
_strnicmp: extern "C" fn(),
|
||||
_unlock_notify: extern "C" fn(),
|
||||
_wal_autocheckpoint: extern "C" fn(),
|
||||
_wal_checkpoint: extern "C" fn(),
|
||||
_wal_hook: extern "C" fn(),
|
||||
_blob_reopen: extern "C" fn(),
|
||||
_vtab_config: extern "C" fn(),
|
||||
_vtab_on_conflict: extern "C" fn(),
|
||||
/* Version 3.7.16 and later */
|
||||
_close_v2: extern "C" fn(),
|
||||
_db_filename: extern "C" fn(),
|
||||
_db_readonly: extern "C" fn(),
|
||||
_db_release_memory: extern "C" fn(),
|
||||
_errstr: extern "C" fn(),
|
||||
_stmt_busy: extern "C" fn(),
|
||||
_stmt_readonly: extern "C" fn(),
|
||||
_stricmp: extern "C" fn(),
|
||||
_uri_boolean: extern "C" fn(),
|
||||
_uri_int64: extern "C" fn(),
|
||||
_uri_parameter: extern "C" fn(),
|
||||
_xvsnprintf: extern "C" fn(),
|
||||
_wal_checkpoint_v2: extern "C" fn(),
|
||||
/* Version 3.8.7 and later */
|
||||
_auto_extension: extern "C" fn(),
|
||||
_bind_blob64: extern "C" fn(),
|
||||
_bind_text64: extern "C" fn(),
|
||||
_cancel_auto_extension: extern "C" fn(),
|
||||
_load_extension: extern "C" fn(),
|
||||
_malloc64: extern "C" fn(),
|
||||
_msize: extern "C" fn(),
|
||||
_realloc64: extern "C" fn(),
|
||||
_reset_auto_extension: extern "C" fn(),
|
||||
_result_blob64: extern "C" fn(),
|
||||
_result_text64: extern "C" fn(),
|
||||
_strglob: extern "C" fn(),
|
||||
/* Version 3.8.11 and later */
|
||||
_value_dup: extern "C" fn(),
|
||||
_value_free: extern "C" fn(),
|
||||
_result_zeroblob64: extern "C" fn(),
|
||||
_bind_zeroblob64: extern "C" fn(),
|
||||
/* Version 3.9.0 and later */
|
||||
_value_subtype: extern "C" fn(),
|
||||
_result_subtype: extern "C" fn(),
|
||||
/* Version 3.10.0 and later */
|
||||
_status64: extern "C" fn(),
|
||||
_strlike: extern "C" fn(),
|
||||
_db_cacheflush: extern "C" fn(),
|
||||
/* Version 3.12.0 and later */
|
||||
_system_errno: extern "C" fn(),
|
||||
/* Version 3.14.0 and later */
|
||||
_trace_v2: extern "C" fn(),
|
||||
_expanded_sql: extern "C" fn(),
|
||||
/* Version 3.18.0 and later */
|
||||
_set_last_insert_rowid: extern "C" fn(),
|
||||
/* Version 3.20.0 and later */
|
||||
_prepare_v3: extern "C" fn(),
|
||||
_prepare16_v3: extern "C" fn(),
|
||||
bind_pointer: extern "C" fn(
|
||||
stmt: *mut Sqlite3Stmt,
|
||||
index: c_int,
|
||||
ptr: *mut *mut FTS5API,
|
||||
name: *const c_uchar,
|
||||
cb: *mut c_void,
|
||||
) -> c_int,
|
||||
}
|
||||
|
||||
#[no_mangle]
|
||||
pub extern "C" fn signal_fts5_tokenizer_init(
|
||||
db: *mut Sqlite3,
|
||||
_pz_err_msg: *mut *mut c_uchar,
|
||||
p_api: *const c_void,
|
||||
) -> c_int {
|
||||
std::panic::catch_unwind(|| match signal_fts_tokenizer_internal_init(db, p_api) {
|
||||
Ok(_) => SQLITE_OK,
|
||||
Err(code) => code,
|
||||
})
|
||||
.unwrap_or(SQLITE_INTERNAL)
|
||||
}
|
||||
|
||||
fn signal_fts_tokenizer_internal_init(db: *mut Sqlite3, p_api: *const c_void) -> Result<(), c_int> {
|
||||
let api = unsafe { (p_api as *const Sqlite3APIRoutines).as_ref() }.ok_or(SQLITE_INTERNAL)?;
|
||||
|
||||
if (api.libversion_number)() < 302000 {
|
||||
return Err(SQLITE_MISUSE);
|
||||
}
|
||||
|
||||
let mut stmt = null_mut::<Sqlite3Stmt>();
|
||||
let rc = (api.prepare)(db, "SELECT fts5(?1)\0".as_ptr(), -1, &mut stmt, null_mut());
|
||||
|
||||
if rc != SQLITE_OK {
|
||||
return Err(rc);
|
||||
}
|
||||
|
||||
let mut p_fts5_api = null_mut::<FTS5API>();
|
||||
let rc = (api.bind_pointer)(
|
||||
stmt,
|
||||
1,
|
||||
&mut p_fts5_api,
|
||||
b"fts5_api_ptr\0".as_ptr(),
|
||||
null_mut(),
|
||||
);
|
||||
if rc != SQLITE_OK {
|
||||
(api.finalize)(stmt);
|
||||
return Err(rc);
|
||||
}
|
||||
|
||||
// Intentionally ignore return value, sqlite3 returns SQLITE_ROW
|
||||
(api.step)(stmt);
|
||||
|
||||
let rc = (api.finalize)(stmt);
|
||||
if rc != SQLITE_OK {
|
||||
return Err(rc);
|
||||
}
|
||||
|
||||
let fts5_api = unsafe { p_fts5_api.as_ref() }.ok_or(SQLITE_INTERNAL)?;
|
||||
|
||||
if fts5_api.i_version != FTS5_API_VERSION {
|
||||
return Err(SQLITE_MISUSE);
|
||||
}
|
||||
|
||||
// Add custom tokenizer
|
||||
let mut tokenizer = Fts5TokenizerApi {
|
||||
x_create: fts5_create_signal_tokenizer,
|
||||
x_delete: fts5_delete_signal_tokenizer,
|
||||
x_tokenize: signal_fts5_tokenize,
|
||||
};
|
||||
|
||||
(fts5_api.x_create_tokenizer)(
|
||||
fts5_api,
|
||||
b"signal_tokenizer\0".as_ptr(),
|
||||
null_mut(),
|
||||
&mut tokenizer,
|
||||
fts5_destroy_icu_module,
|
||||
);
|
||||
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
#[no_mangle]
|
||||
pub extern "C" fn fts5_create_signal_tokenizer(
|
||||
_p_context: *mut c_void,
|
||||
_az_arg: *const *const c_uchar,
|
||||
_n_arg: c_int,
|
||||
fts5_tokenizer: *mut *mut Fts5Tokenizer,
|
||||
) -> c_int {
|
||||
let tokenizer = Box::new(Fts5Tokenizer {});
|
||||
unsafe {
|
||||
*fts5_tokenizer = Box::into_raw(tokenizer);
|
||||
}
|
||||
return SQLITE_OK;
|
||||
}
|
||||
|
||||
#[no_mangle]
|
||||
pub extern "C" fn fts5_delete_signal_tokenizer(fts5_tokenizer: *mut Fts5Tokenizer) {
|
||||
let tokenizer = unsafe { Box::from_raw(fts5_tokenizer) };
|
||||
drop(tokenizer);
|
||||
}
|
||||
|
||||
#[no_mangle]
|
||||
pub extern "C" fn fts5_destroy_icu_module(_module: *mut c_void) {
|
||||
// no-op
|
||||
}
|
||||
141
src/lib.rs
Normal file
141
src/lib.rs
Normal file
@ -0,0 +1,141 @@
|
||||
//
|
||||
// Copyright 2023 Signal Messenger, LLC.
|
||||
// SPDX-License-Identifier: AGPL-3.0-only
|
||||
//
|
||||
|
||||
extern crate alloc;
|
||||
|
||||
mod common;
|
||||
#[cfg(feature = "extension")]
|
||||
mod extension;
|
||||
|
||||
pub use crate::common::*;
|
||||
use libc::{c_char, c_int, c_uchar, c_void};
|
||||
use unicode_normalization::UnicodeNormalization;
|
||||
use unicode_segmentation::UnicodeSegmentation;
|
||||
|
||||
#[no_mangle]
|
||||
pub extern "C" fn signal_fts5_tokenize(
|
||||
_tokenizer: *mut Fts5Tokenizer,
|
||||
p_ctx: *mut c_void,
|
||||
_flags: c_int,
|
||||
p_text: *const c_char,
|
||||
n_text: c_int,
|
||||
x_token: TokenFunction,
|
||||
) -> c_int {
|
||||
std::panic::catch_unwind(|| {
|
||||
match signal_fts5_tokenize_internal(p_ctx, p_text, n_text, x_token) {
|
||||
Ok(()) => SQLITE_OK,
|
||||
Err(code) => code,
|
||||
}
|
||||
})
|
||||
.unwrap_or(SQLITE_INTERNAL)
|
||||
}
|
||||
|
||||
fn signal_fts5_tokenize_internal(
|
||||
p_ctx: *mut c_void,
|
||||
p_text: *const c_char,
|
||||
n_text: c_int,
|
||||
x_token: TokenFunction,
|
||||
) -> Result<(), c_int> {
|
||||
let slice = unsafe { core::slice::from_raw_parts(p_text as *const c_uchar, n_text as usize) };
|
||||
let input = core::str::from_utf8(slice).map_err(|_| SQLITE_MISUSE)?;
|
||||
|
||||
let mut normalized = String::with_capacity(1024);
|
||||
|
||||
for (off, segment) in input.unicode_word_indices() {
|
||||
normalize_into(segment, &mut normalized);
|
||||
let rc = x_token(
|
||||
p_ctx,
|
||||
0,
|
||||
normalized.as_bytes().as_ptr() as *const c_char,
|
||||
normalized.len() as c_int,
|
||||
off as c_int,
|
||||
(off + segment.len()) as c_int,
|
||||
);
|
||||
if rc != SQLITE_OK {
|
||||
return Err(rc);
|
||||
}
|
||||
}
|
||||
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
fn is_diacritic(x: char) -> bool {
|
||||
'\u{0300}' <= x && x <= '\u{036f}'
|
||||
}
|
||||
|
||||
fn normalize_into(segment: &str, buf: &mut String) {
|
||||
buf.clear();
|
||||
|
||||
for x in segment.nfd() {
|
||||
if is_diacritic(x) {
|
||||
continue;
|
||||
}
|
||||
if x.is_ascii() {
|
||||
buf.push(x.to_ascii_lowercase());
|
||||
} else {
|
||||
buf.extend(x.to_lowercase());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn it_normalizes_segment() {
|
||||
let mut buf = String::new();
|
||||
normalize_into("DïācRîtįcs", &mut buf);
|
||||
assert_eq!(buf, "diacritics");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn it_emits_segments() {
|
||||
let input = "hello world! 知识? 안녕 세상";
|
||||
let mut tokens: Vec<(String, c_int, c_int)> = vec![];
|
||||
|
||||
extern "C" fn token_callback(
|
||||
ctx: *mut c_void,
|
||||
flags: c_int,
|
||||
token: *const c_char,
|
||||
token_len: c_int,
|
||||
start: c_int,
|
||||
end: c_int,
|
||||
) -> c_int {
|
||||
assert_eq!(flags, 0);
|
||||
|
||||
let tokens_ptr = ctx as *mut _ as *mut Vec<(String, c_int, c_int)>;
|
||||
let tokens = unsafe { tokens_ptr.as_mut() }.expect("tokens pointer");
|
||||
let slice =
|
||||
unsafe { core::slice::from_raw_parts(token as *const c_uchar, token_len as usize) };
|
||||
let token = String::from_utf8(slice.to_vec()).expect("Expected utf-8 token");
|
||||
|
||||
tokens.push((token, start, end));
|
||||
|
||||
return SQLITE_OK;
|
||||
}
|
||||
|
||||
signal_fts5_tokenize_internal(
|
||||
&mut tokens as *mut _ as *mut c_void,
|
||||
input.as_bytes().as_ptr() as *const c_char,
|
||||
input.len() as i32,
|
||||
token_callback,
|
||||
)
|
||||
.expect("tokenize internal should not fail");
|
||||
|
||||
assert_eq!(
|
||||
tokens,
|
||||
[
|
||||
("hello", 0, 5),
|
||||
("world", 6, 11),
|
||||
("知", 13, 16),
|
||||
("识", 16, 19),
|
||||
("안녕", 21, 27),
|
||||
("세상", 28, 34)
|
||||
]
|
||||
.map(|(s, start, end)| (s.to_owned(), start, end))
|
||||
);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user