7842 - new directory organization

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.

1 files changed, 29 insertions, 0 deletions

diff --git a/editor/subx.gedit b/editor/subx.gedit
new file mode 100644
index 00000000..45ef1337
--- /dev/null
+++ b/editor/subx.gedit
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- copy this file somewhere like ~/.local/share/gtksourceview-3.0/language-specs/subx.lang -->
+<language id="subx" name="SubX" version="2.0" _section="Source">
+  <metadata>
+    <property name="mimetypes">text/x-subx;text/x-subxsrc</property>
+    <property name="globs">*.subx</property>
+  </metadata>
+  <styles>
+    <style id="comment" name="Comment" map-to="def:comment"/>
+    <style id="string" name="String" map-to="def:string"/>
+    <style id="keyword" name="Keyword" map-to="def:keyword"/>
+  </styles>
+  <definitions>
+    <context id="subx">
+      <include>
+        <context id="comment" style-ref="comment">
+          <match>#.*</match>
+        </context>
+        <context id="string" style-ref="string">
+          <match>"[^"]*"</match>
+        </context>
+        <!-- TODO: distinguish functions, globals, tests and internal labels -->
+        <context id="keyword" style-ref="keyword">
+          <match>^[^ ]*:</match>
+        </context>
+      </include>
+    </context>
+  </definitions>
+</language>