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path: root/sys/cmd/rc/exec.c
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2021-10-26Feat(libunicode): Added an explicit unicode libraryNicholas Noll
Refactored code to pull out utf8 functions from base into a standalone library. Also left the required function inside arg.c so that code that calls ARG_BEGIN doesn't have to link to libunicode.
2021-10-26fix(rc): prompt during command entryNicholas Noll
2021-10-26feat(rc): keywords now recognized. for and while loopNicholas Noll
Prototypes for loops sketched. This required recognizing keywords and returning from yylex. Debugging/testing will be required.
2021-10-26feat(rc): added index operationsNicholas Noll
2021-10-21feat(rc): added a few builtinsNicholas Noll
2021-10-21feat(rc): added andand and oror operatorsNicholas Noll
2021-10-21feat(rc): string join operatorNicholas Noll
2021-10-21feat(rc): string concatenation worksNicholas Noll
2021-10-21feat(rc): vi mode fleshed outNicholas Noll
2021-10-20Feat: now execs instead of exec + fork if going to exit.Nicholas Noll
One quick solution to the lack of tracking deep into the command line is to note that the pattern of code emitted for an async is: Xasync |__ child (command) |__ parent (continues) The child creates a process group, as described before. If the child is a simple command, we will now "exec" as it will exit immediately after the command. This gives us the correct behavior, at least for simple cases. This also fixed pipes. However, if child has to be forked, i.e. can't be immediately execed, then I don't think this process works...
2021-10-20Refactored interactivity to track with thread.Nicholas Noll
Hit a bit of a stopping point. Specifically, the way XAsync runs currently is by forking the execution context and having the child run the async code while the parent runs the remainder. The problem with this architecture is it doesn't interact well with job control. When we fork, we create a new process group. Thus the Xasync fork becomes the new leader. In short, our traversal of the parse tree as to be less "preorder" and more "in order", i.e. from the leaves up. The "left" command of the pipeline should be the "leader" of the process group.
2021-10-19Feat(rc): added subshell commands and cd builtinNicholas Noll
Slowly chipping away at a decent feature list. Subshell commands are executed by @{ ... }.
2021-10-19feat(rc): prototype of async jobsNicholas Noll
2021-10-19Feat: word operators and more robust crashingNicholas Noll
Added the length and concatenate operators. Slightly improved the robustness on syntax errors.
2021-10-19feat(rc): cleaner process watching for each jobNicholas Noll
2021-10-18feat(rc): job control prototype working for basic commandsNicholas Noll
2021-10-15feat(rc): working prototype of input->compile->print loopNicholas Noll
2021-10-13RM(rc): old code. too many assumptions baked inNicholas Noll
2021-10-13Feat(rc): working(ish) version of rc shellNicholas Noll
Removed compile commands
2021-10-13fix(email): bytes error. updated vendoringNicholas Noll
2021-10-09feat(rc): added shellNicholas Noll
2021-04-22chore: rm unfinished projectsNicholas Noll
2020-06-20feat: file globbing in shell. added dynamic.mkNicholas Noll
2020-06-18feat: working parser for rc shell languageNicholas Noll