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* .Kartik K. Agaram2021-06-051-0/+10
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* bugfix: unbound variables were not raising errorKartik K. Agaram2021-05-301-1/+1
| | | | | Since we switched error trace semantics from a designated label to a designated depth (commit 9831a8cef9 on May 19).
* .Kartik K. Agaram2021-05-301-0/+5
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* disallow null tracesKartik K. Agaram2021-05-191-2/+8
| | | | | | We now use traces everywhere for error-checking. Null traces introduce the possibility of changing a functions error response, and therefore its semantics.
* first passing test for macroexpandKartik K. Agaram2021-05-061-8/+8
| | | | | | | | In the process I spent a long time tracking down a stray TODO in 108write.subx that I thought would abort but didn't since the switch to baremetal. Then after I reintroduced that assertion I had to go track down a bunch of buffer sizes. Stream sizes continue to be a huge mess.
* reading and printing backquotes and unquotesKartik K. Agaram2021-05-031-0/+48
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* shell: stream literalsKartik K. Agaram2021-04-271-3/+14
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* parse dotted listsKartik K. Agaram2021-04-151-0/+56
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* .Kartik K. Agaram2021-04-151-14/+25
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* .Kartik K. Agaram2021-04-151-6/+4
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* .Kartik K. Agaram2021-04-151-4/+7
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* shell: starting to parse dotted listsKartik K. Agaram2021-04-151-10/+20
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* shell: quoteKartik K. Agaram2021-04-061-0/+14
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* 7866Kartik Agaram2021-03-071-10/+10
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* 7842 - new directory organizationKartik K. Agaram2021-03-031-0/+136
Baremetal is now the default build target and therefore has its sources at the top-level. Baremetal programs build using the phase-2 Mu toolchain that requires a Linux kernel. This phase-2 codebase which used to be at the top-level is now under the linux/ directory. Finally, the phase-2 toolchain, while self-hosting, has a way to bootstrap from a C implementation, which is now stored in linux/bootstrap. The bootstrap C implementation uses some literate programming tools that are now in linux/bootstrap/tools. So the whole thing has gotten inverted. Each directory should build one artifact and include the main sources (along with standard library). Tools used for building it are relegated to sub-directories, even though those tools are often useful in their own right, and have had lots of interesting programs written using them. A couple of things have gotten dropped in this process: - I had old ways to run on just a Linux kernel, or with a Soso kernel. No more. - I had some old tooling for running a single test at the cursor. I haven't used that lately. Maybe I'll bring it back one day. The reorg isn't done yet. Still to do: - redo documentation everywhere. All the README files, all other markdown, particularly vocabulary.md. - clean up how-to-run comments at the start of programs everywhere - rethink what to do with the html/ directory. Do we even want to keep supporting it? In spite of these shortcomings, all the scripts at the top-level, linux/ and linux/bootstrap are working. The names of the scripts also feel reasonable. This is a good milestone to take stock at.