* gash/arithmetic.scm: New file.
* Makefile.am (SOURCES): Add it.
* gash/lexer.scm (get-arithmetic-expansion): New procedure.
(get-expansion): Check for "$((" and use the new procedure to read an
arithmetic expansion.
* gash/eval.scm (word->qword): Handle '<sh-arithmetic>'.
* tests/unit/eval.scm: Add tests.
* tests/spec/Makefile.am (TESTS): Add 'arith'.
* tests/spec/oil.scm: Patch seven of its tests and filter out fifteen
others.
* doc/gash.texi, doc/syntax.txt: Add '<sh-arithmetic>' syntax.
This adjustment paves the way for writing a compiler.
* gash/word.scm (eval-cmd-sub, string-not-null?, word->qword,
expand-word): Move these...
* gash/eval.scm: ...to this module.
* tests/unit/word.scm: Adjust qword tests to use 'expand-qword', and
move non-qword (evaluation) tests to...
* tests/unit/eval.scm: ...this new file, adjusting them to use
'eval-word'.
* Makefile.am (UNIT_TESTS): Add the new file.
The old implementation had several bugs, prompting this complete
rewrite.
* gash/compat/srfi-43.scm (vector-empty?): New procedure.
* gash/pattern.scm (pattern-null?): New procedure.
* gash/word.scm (qword->pattern-string): New procedure.
(qword->pattern): Rewrite using 'qword->pattern-string'.
(find-files): New procedure.
(expand-pathnames): Rewrite using 'find-files' and add a docstring.
* tests/unit/word.scm: Add tests.
(mock): New syntax.
(make-pure-scandir): New procedure.
(with-mocked-files): New syntax.
These were mixed up, with ':+' behaving like '+' and vice versa.
* gash/word.scm (word->qword): Swap implementations of '<sh-ref-and>'
and '<sh-ref-and*>'.
* tests/unit/word.scm: Swap tests.
* gash/lexer.scm (read-backquoted-command): Make the default procedure
accept a 'quoted?' keyword.
(get-backquoted-command): Accept a 'quoted?' keyword and pass it on to
'read-backquoted-command'.
(get-expansion): Accept a 'quoted?' keyword and pass it on to
'get-backquoted-command'.
(get-double-quotation): Set the 'quoted?' keyword when calling
'get-expansion'.
* tests/unit/lexer.scm: Add tests.
* gash/parser.scm (call-with-backquoted-input-port): Accept a
'quoted?' keyword which, if set, adds the double quote character to
the set of escapable characters.
(read-sh/backquoted): Accept a 'quoted?' keyword and pass it on to
'call-with-backquoted-input-port'.
* tests/unit/parser.scm: Add tests.
* gash/pattern.scm (parse-matching-bracket-expression): Do not
report errors until a full bracket expression has been parsed.
* tests/unit/pattern.scm: Add test.
* gash/pattern.scm (string-contains-part-right): New procedure.
(pattern-drop): New procedure.
(pattern-drop-right): New procedure.
* tests/unit/pattern.scm: Test the dropping procedures.
It turns out that 'with-continuation-barrier' allows delimited
continuations (i.e., prompts) to get through.
* gash/shell.scm (%subshell): Replace 'with-continuation-barrier' with
'dynamic-wind', making sure to preserve exit statuses that were leaked
through before.
* tests/unit/shell.scm (call-with-temporary-directory): Replace
'with-continuation-barrier' with 'dynamic-wind'.
* tests/spec/oil.scm: Enable previously failing tests.
This commit fixes many differences between the parser output and the
syntax document.
* gash/parser.scm (make-parser): Only wrap a command list with
'<sh-begin>' when necessary.
* tests/unit/parser.scm: Update tests accordingly.
* configure.ac (GUILE_PKG): Add 2.0.
* gash/textual-ports.scm: New file.
* Makefile.am: Add it.
* gash/lexer.scm, gash/parser.scm, gash/shell.scm: Use it in place of
'(ice-9 textual-ports)'.
* tests/unit/shell.scm: Use it in place of '(ice-9 textual-ports)';
replace '(ice-9 textual-ports)' with '(rnrs io ports)' in sub-scripts;
and add a shim for 'setvbuf'.
This was only relevant to an older implementation of redirects, and
does not make much sense for us now.
* tests/unit/shell.scm (Redirects here-document to standard input):
Remove call to 'setvbuf'.
gash/environment.scm: Remove file.
geesh/*: Move these files into the 'gash' folder and replace all
instances of the word 'geesh'.
scripts/geesh.in: Remove file.
HACKING, INSTALL, Makefile.am, configure.ac, guix.scm,
tests/bootstrap/bash-without-bash.scm, tests/spec/Makefile.am,
tests/spec/check-spec, tests/spec/oil.scm, tests/unit/*,
tools/coverage.in: Replace all instances of the word 'geesh'.
Co-authored-by: Jan Nieuwenhuizen <janneke@gnu.org>
Timothy Sample