Commit Graph
2 Commits
Author SHA1 Message Date
Florian WaltherandClaude Opus 5.5 f79fb0b8d5 add control structures: if, for, while, until
- new parser (parser.go) for lists, pipelines, ! and if/elif/else/fi,
  for ... in ... do/done, while/until ... do/done; simple commands are
  kept as text and expanded when they run (in every iteration)
- break [n], continue [n] and the : builtin
- incomplete input (open control structure, trailing &&, |, quote or
  backslash) continues on the next line: prompt "> " in interactive
  shells, scripts and startup files read on
- Ctrl+C aborts the whole command line, including loops
- aliases are expanded at the start of every simple command, also inside
  control structures
- control structures in pipelines, with redirections or in the
  background are reported as not supported
- completion: commands after if, then, do etc.
- main_test.go reformatted with gofmt

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-04 00:05:28 +02:00
Florian WaltherandClaude Opus 5.5 e49fe6fe11 add command substitution $(...)
- $(command) is replaced by the output of command, which runs in a
  subshell (gosh -c), so cd/set in it do not change the shell
- trailing newlines are removed; unquoted the output is split into words
  at blanks and newlines, "$(...)" stays one word; wildcards in the
  output are not expanded
- nested substitutions, quotes and operators inside are handled; the
  list, alias and brace scanners skip $(...) as a whole
- a command that consists only of a substitution has its exit status,
  Ctrl+C in a substitution aborts the command
- $((...)) is reported as not supported

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-03 23:52:09 +02:00