Simplify TSL parsing #1218

Job	Run time
Build on Fedora 39	1m 48s
Build on Ubuntu 20.04	2m 50s
Build on Fedora 40	2m 0s
Build on Ubuntu 22.04	2m 55s
Run Coverity tests	0s
Run CodeQL tests	5m 0s
Build on Ubuntu 23.10	2m 52s
Build on Ubuntu 24.04	2m 55s
Build on macOS for osx	3m 13s
Deploy pages	0s
Build on Windows (143, x86)	7m 29s
Build on macOS for ios	1m 39s
Build on Windows (143, x64)	7m 28s
Build on macOS for iossimulator	1m 49s
Build on Windows (142, x86)	7m 34s
Build on macOS for androidarm	1m 40s
Build on Windows (142, x64)	7m 29s
Build on macOS for androidarm64	1m 36s
Build on macOS for androidx86_64	1m 27s
	1h 1m 44s

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