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author	Pierre Le Marre <dev@wismill.eu>
	Tue, 26 Sep 2023 15:05:05 +0000 (17:05 +0200)
committer	Wismill <dev@wismill.eu>
	Tue, 26 Sep 2023 15:25:49 +0000 (17:25 +0200)
commit	ca7aa69cc0fb102cfa41edf4f9b5f1c68b2c49e5
tree	f1c8529c10435bdbe8582a044dc8f62d6526fa13	tree \| snapshot
parent	a17701327e4bc6daa54114041a9707e00e15d82c	commit \| diff

Disallow producing NULL character with escape sequences

NULL usually terminates the strings; allowing to produce it via escape
sequences may lead to undefined behaviour.

- Make NULL escape sequences (e.g. `\0` and `\x0`) invalid.
- Add corresponding test.
- Introduce the new message: XKB_WARNING_INVALID_ESCAPE_SEQUENCE.

doc/message-registry.md		diff \| blob \| history
doc/message-registry.yaml		diff \| blob \| history
src/compose/parser.c		diff \| blob \| history
src/messages-codes.h		diff \| blob \| history
src/utils.h		diff \| blob \| history
src/xkbcomp/scanner.c		diff \| blob \| history
test/compose.c		diff \| blob \| history
test/data/keymaps/invalid-escape-sequence.xkb	[new file with mode: 0644]	blob
test/filecomp.c		diff \| blob \| history
tools/messages.c		diff \| blob \| history

Domain: Graphics System / Input Management;

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