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* Copyright year bump 2022.Kaz Kylheku2022-01-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *LICENSE, LICENSE-CYG, METALICENSE, Makefile, alloca.h, args.c, args.h, arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, chksum.c, chksum.h, chksums/crc32.c, chksums/crc32.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lex.yy.c.shipped, lib.c, lib.h, linenoise/linenoise.c, linenoise/linenoise.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, protsym.c, psquare.h, rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, socket.c, socket.h, stdlib/arith-each.tl, stdlib/asm.tl, stdlib/awk.tl, stdlib/build.tl, stdlib/cadr.tl, stdlib/compiler.tl, stdlib/constfun.tl, stdlib/conv.tl, stdlib/copy-file.tl, stdlib/debugger.tl, stdlib/defset.tl, stdlib/doloop.tl, stdlib/each-prod.tl, stdlib/error.tl, stdlib/except.tl, stdlib/ffi.tl, stdlib/getopts.tl, stdlib/getput.tl, stdlib/hash.tl, stdlib/ifa.tl, stdlib/keyparams.tl, stdlib/match.tl, stdlib/op.tl, stdlib/optimize.tl, stdlib/package.tl, stdlib/param.tl, stdlib/path-test.tl, stdlib/pic.tl, stdlib/place.tl, stdlib/pmac.tl, stdlib/quips.tl, stdlib/save-exe.tl, stdlib/socket.tl, stdlib/stream-wrap.tl, stdlib/struct.tl, stdlib/tagbody.tl, stdlib/termios.tl, stdlib/trace.tl, stdlib/txr-case.tl, stdlib/type.tl, stdlib/vm-param.tl, stdlib/with-resources.tl, stdlib/with-stream.tl, stdlib/yield.tl, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, time.c, time.h, tree.c, tree.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h, win/cleansvg.txr, y.tab.c.shipped: Copyright year bumped to 2022.
* license: reformat to fit 80 columns.Kaz Kylheku2021-08-161-12/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Makefile, alloca.h, args.c, args.h, arith.c, arith.h, buf.c, buf.h, chksum.c, chksum.h, chksums/crc32.c, chksums/crc32.h, combi.c, combi.h, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, socket.c, socket.h, stdlib/asm.tl, stdlib/awk.tl, stdlib/build.tl, stdlib/compiler.tl, stdlib/constfun.tl, stdlib/conv.tl, stdlib/copy-file.tl, stdlib/debugger.tl, stdlib/defset.tl, stdlib/doloop.tl, stdlib/each-prod.tl, stdlib/error.tl, stdlib/except.tl, stdlib/ffi.tl, stdlib/getopts.tl, stdlib/getput.tl, stdlib/hash.tl, stdlib/ifa.tl, stdlib/keyparams.tl, stdlib/match.tl, stdlib/op.tl, stdlib/optimize.tl, stdlib/package.tl, stdlib/param.tl, stdlib/path-test.tl, stdlib/pic.tl, stdlib/place.tl, stdlib/pmac.tl, stdlib/quips.tl, stdlib/save-exe.tl, stdlib/socket.tl, stdlib/stream-wrap.tl, stdlib/struct.tl, stdlib/tagbody.tl, stdlib/termios.tl, stdlib/trace.tl, stdlib/txr-case.tl, stdlib/type.tl, stdlib/vm-param.tl, stdlib/with-resources.tl, stdlib/with-stream.tl, stdlib/yield.tl, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, time.c, time.h, tree.c, tree.h, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h: License reformatted. * lex.yy.c.shipped, y.tab.c.shipped, y.tab.h.shipped: Updated.
* format: ~x/~X specifiers support buffers.Kaz Kylheku2021-05-041-0/+2
| | | | | | | | | | | | | * buf.c (buf_hex): New function. * buf.h (buf_hex): Declared. * stream.c (formatv): Support printing of buffers in hex via temporary buffer containing hex characters, similarly to how bignums are handled. * tests/018/format.tl: New file, providing some coverage over new and affected code.
* sha256/md5: leak: don't use borrowed buffer for hash.Kaz Kylheku2021-05-041-0/+1
| | | | | | | | | | | | | | | It's incorrect to use a borrowed buf, because a borrowed buf assumes that the memory isn't dynamically allocated, and will not free it when it is finalized by the garbage collector. The buffer which holds the hash returned by sha256 and md5 does in fact own the memory. * buf.c (make_owned_buf): Static function becomes external. * buf.h (make_owned_buf): Declared. * chksum.c (chksum_ensure_buf): Use make_owned_buf rather than make_borrowed_buf.
* Copyright year bump 2021.Kaz Kylheku2021-01-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * METALICENSE: 2020 copyrights bumped to 2021. Added note about SHA-256 routines from Colin Percival. * LICENSE, LICENSE-CYG, Makefile, alloca.h, args.c, args.h, arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, chksum.c, chksum.h, chksums/crc32.c, chksums/crc32.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lex.yy.c.shipped, lib.c, lib.h, linenoise/linenoise.c, linenoise/linenoise.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, protsym.c, rand.c, rand.h, regex.c, regex.h, share/txr/stdlib/asm.tl, share/txr/stdlib/awk.tl, share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl, share/txr/stdlib/compiler.tl, share/txr/stdlib/conv.tl, share/txr/stdlib/copy-file.tl, share/txr/stdlib/debugger.tl, share/txr/stdlib/defset.tl, share/txr/stdlib/doloop.tl, share/txr/stdlib/each-prod.tl, share/txr/stdlib/error.tl, share/txr/stdlib/except.tl, share/txr/stdlib/ffi.tl, share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl, share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl, share/txr/stdlib/keyparams.tl, share/txr/stdlib/op.tl, share/txr/stdlib/package.tl, share/txr/stdlib/param.tl, share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl, share/txr/stdlib/pmac.tl, share/txr/stdlib/quips.tl, share/txr/stdlib/save-exe.tl, share/txr/stdlib/socket.tl, share/txr/stdlib/stream-wrap.tl, share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl, share/txr/stdlib/termios.tl, share/txr/stdlib/trace.tl, share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl, share/txr/stdlib/vm-param.tl, share/txr/stdlib/with-resources.tl, share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl, signal.c, signal.h, socket.c, socket.h, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, time.c, time.h, tree.c, tree.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h, win/cleansvg.txr, y.tab.c.shipped: Copyright year bumped to 2021.
* New function: get-line-as-bufKaz Kylheku2020-04-191-0/+4
| | | | | | | | | | | | | | * buf.c (buf_put_bytes, buf_get_bytes): static functions become external. * buf.h (buf_put_bytes, buf_get_bytes): Declared. * stream.c (get_line_as_buf): New fucntnion. (stream_init): Registered get-line-as-buf intrinsic. * stream.h (get_line_as_buf): Declared. * txr.1: Documented.
* Copyright year bump 2020.Kaz Kylheku2019-12-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, alloca.h, args.c, args.h, arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, chksum.c, chksum.h, chksums/crc32.c, chksums/crc32.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h, linenoise/linenoise.c, linenoise/linenoise.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, protsym.c, rand.c, rand.h, regex.c, regex.h, share/txr/stdlib/asm.tl, share/txr/stdlib/awk.tl, share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl, share/txr/stdlib/compiler.tl, share/txr/stdlib/conv.tl, share/txr/stdlib/debugger.tl, share/txr/stdlib/defset.tl, share/txr/stdlib/doloop.tl, share/txr/stdlib/error.tl, share/txr/stdlib/except.tl, share/txr/stdlib/ffi.tl, share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl, share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl, share/txr/stdlib/keyparams.tl, share/txr/stdlib/op.tl, share/txr/stdlib/package.tl, share/txr/stdlib/param.tl, share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl, share/txr/stdlib/pmac.tl, share/txr/stdlib/save-exe.tl, share/txr/stdlib/socket.tl, share/txr/stdlib/stream-wrap.tl, share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl, share/txr/stdlib/termios.tl, share/txr/stdlib/trace.tl, share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl, share/txr/stdlib/vm-param.tl, share/txr/stdlib/with-resources.tl, share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl, signal.c, signal.h, socket.c, socket.h, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, tree.c, tree.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h, win/cleansvg.txr: Extended copyright notices to 2020.
* New function: buf-list.Kaz Kylheku2019-11-201-0/+1
| | | | | | | | | * buf.c (buf_list): New function. (buf_init): buf-list intrinsic registered. * buf.h (buf_list): Declared. * txr.1: Documented.
* buffers: remove unused buf_fill function.Kaz Kylheku2019-07-051-1/+0
| | | | * buf.c, buf.h (buf_fill): Removed.
* New function: buf-put-buf.Kaz Kylheku2019-07-051-0/+1
| | | | | | | | | | * buf.c (buf_move_bytes): New static function. (buf_put_buf): New function. (buf_init): Register buf-put-buf intrinsic. * buf.h (buf_put_buf): Declared. * txr.1: Documented.
* buffers: replace operation.Kaz Kylheku2019-06-121-0/+1
| | | | | | | | * buf.c (replace_buf): New function. * buf.h (replace_buf): Declared. * lib.c (replace): Wire in.
* buffers: allow sub operation.Kaz Kylheku2019-06-111-0/+1
| | | | | | | | | * buf.c (sub_buf): New function. * buf.h (sub_buf): Declared. * lib.c (sub): Hook in BUF type. (replace): Diagnose BUF specially as unsupported.
* buf-alloc-size: new function.Kaz Kylheku2019-02-161-0/+1
| | | | | | | | | * buf.c (buf_alloc_size): New function. (buf_init): buf-alloc-size intrinsic registered. * buf.h (buf_alloc_size): Declared. * txr.1: Documented.
* Copyright year bump 2019.Kaz Kylheku2019-01-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, args.c, args.h, arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, protsym.c, rand.c, rand.h, regex.c, regex.h, share/txr/stdlib/asm.tl, share/txr/stdlib/awk.tl, share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl, share/txr/stdlib/compiler.tl, share/txr/stdlib/conv.tl, share/txr/stdlib/doloop.tl, share/txr/stdlib/error.tl, share/txr/stdlib/except.tl, share/txr/stdlib/ffi.tl, share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl, share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl, share/txr/stdlib/keyparams.tl, share/txr/stdlib/op.tl, share/txr/stdlib/package.tl, share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl, share/txr/stdlib/pmac.tl, share/txr/stdlib/socket.tl, share/txr/stdlib/stream-wrap.tl, share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl, share/txr/stdlib/termios.tl, share/txr/stdlib/trace.tl, share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl, share/txr/stdlib/vm-param.tl, share/txr/stdlib/with-resources.tl, share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl, signal.c, signal.h, socket.c, socket.h, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h, win/cleansvg.txr: Extended Copyright line to 2018.
* buffers: implement copy-buf.Kaz Kylheku2018-11-041-0/+1
| | | | | | | | | | | * buf.c (copy_buf): New function. (buf_init): Register copy-buf intrinsic. * buf.h (copy_buf): Declared. * lib.c (copy): Handle BUF via copy_buf. * txr.1: Documented.
* compile-file: need endian mark in .tlo files.Kaz Kylheku2018-04-121-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | VM machine code is endian-specific: it consists of 32 bit instruction words which are 32 bit in the local byte order. Thus code assembled on a little-endian machine won't run on a big endian-machine, or vice versa: unless we identify the situation and byte-swap the code when we load it. * buf.c (buf_swap32): New function. * buf.h (buf_swap32): Declared. * parser.c (read_file_common): Decode the third element from the version: a Boolean indicating big endian, if true. If the object file's endian is opposite from our endian, then byte swap the code. * itypes.c (itypes_init): Oops, calculation of itypes_little_endian was broken due to classic C =/== typo. Luckily, nothing has used this flag so far; it's been waiting for this first use. I caught this due to testing on a PPC64 box. * share/txr/stdlib/compiler.tl (%big-endian%, %tlo-ver%): New variables. (usr:compile-file): The file version comes from %tlo-ver% now, which includes the big-endian flag.
* Copyright year bump 2018.Kaz Kylheku2018-02-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, args.c, args.h, arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c, glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h, lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, protsym.c, rand.c, rand.h, regex.c, regex.h, share/txr/stdlib/awk.tl, share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl, share/txr/stdlib/conv.tl, share/txr/stdlib/doloop.tl, share/txr/stdlib/error.tl, share/txr/stdlib/except.tl, share/txr/stdlib/ffi.tl, share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl, share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl, share/txr/stdlib/keyparams.tl, share/txr/stdlib/op.tl, share/txr/stdlib/package.tl, share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl, share/txr/stdlib/pmac.tl, share/txr/stdlib/socket.tl, share/txr/stdlib/stream-wrap.tl, share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl, share/txr/stdlib/termios.tl, share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl, share/txr/stdlib/with-resources.tl, share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl, signal.c, signal.h, socket.c, socket.h, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, win/cleansvg.txr: Extended Copyright line to 2018.
* buf: provide way to work with on-stack buffers.Kaz Kylheku2017-08-161-0/+1
| | | | | | | | * buf.c (init_borrowed_buf): New function. (make_borrowed_buf): Reduced to wrapper around init_borrowed_buf. * buf.h (init_borrowed_buf): Declared.
* buf: new buffer stream.Kaz Kylheku2017-08-141-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * buf.c (struct buf_strm): New struct type. (buf_strm_mark, int buf_strm_put_byte_callback, buf_strm_put_string, buf_strm_put_char, buf_strm_put_byte, buf_strm_get_byte_callback, buf_strm_get_char, buf_strm_get_byte, buf_strm_unget_char, buf_strm_unget_byte, buf_strm_seek, buf_strm_truncate, buf_strm_get_prop, buf_strm_set_prop, buf_strm_get_error, buf_strm_get_error_str): New static functions. (buf_strm_ops): New static struct. (buf_strm): New static function. (make_buf_stream, get_buf_from_stream): New functions. (buf_init): Register new intrinsic functiions make-buf-stream and get-buf-from-stream. Call fill_stream_ops on new buf_strm_ops to fill default operations in place of function pointers that have been left null. * buf.h (make_buf_stream, get_buf_from_stream): Declared. * lisplib.c (with_stream_set_entries): Add with-out-buf-stream and with-in-buf-stream to auto-load symbols for with-stream.tl module. * share/txr/stdlib/with-stream.tl (with-out-buf-stream, with-in-buf-stream): New macros. * txr.1: New section about buffer streams.
* buf: new bufp function.Kaz Kylheku2017-06-121-0/+1
| | | | | | | | | * buf.c (bufp): New function. (buf_init): Registered bufp intrisic. * buf.h (bufp): Declared. * txr.1: Documented.
* ffi: rethink passing and alloc scheme for bufs.Kaz Kylheku2017-05-071-1/+0
| | | | | | | | | | | | | | | | | Backing out of the scheme of (ptr buf) passing the address of the internal pointer within buf objects. Also giving buf in handlers, to prevent the fallback on get. * buf.c (buf_addr_of): Function removed. * buf.h (buf_addr_of): Declaration removed. * ffi.c (ffi_buf_in, ffi_buf_d_in): New functions. (ffi_buf_alloc): Function removed. (ffi_type_compile, ffi_init_types): Remove specialty alloc and free functions from buffers, so the regular fixed allocator is used. Give buffers the new in functions.
* ffi: correct treatment of (ptr buf).Kaz Kylheku2017-04-291-0/+1
| | | | | | | | | | | | | | The buf FFI type's alloc virtual should return a pointer to the buffer's pointer, not the buffer itself. What's currently going on is something silly, whereby the pointer to the buffer is stored into the buffer itself. * buf.c (buf_addr_of): New function. * buf.c (buf_addr_of): Declared. * ffi.c (ffi_buf_alloc): Use buf_addr_of instead of buf_get.
* ffi: support buf objects.Kaz Kylheku2017-04-261-0/+3
| | | | | | | | | | | | | | | | * buf.c (make_duplicate_buf, buf_get, buf_fill): New functions. * buf.h (make_duplicate_buf, buf_get, buf_fill): Declared. * ffi.c (struct txr_ffi_type): New member, nelem. Keeps track of number of elements, for types that are FFI pointers. This lets us support the get method so that a buf can be a C function return value, if its size is declared in our FFI type system. (ffi_buf_put, ffi_buf_get, ffi_buf_fill): New functions. (ffi_type_compile): Handle two new cases of syntax for buffers: (buf <size>) and buf.
* Buffers: missing float and cptr.Kaz Kylheku2017-04-241-0/+4
| | | | | | | | | | | | | * buf.c (buf_put_float, buf_put_cptr, buf_get_float, buf_get_cptr, align_float, align_cptr, size_float, size_cptr): New functions. (buf_init): Registered intrinsics buf-put-float, buf-put-cptr, buf-get-float, buf-get-cptr, align-float, align-cptr, size-float, size_cptr. * buf.h (buf_put_float, buf_put_cptr, buf_get_float, buf_get_cptr, align_float, align_cptr, size_float, size_cptr): Declared.
* Continuing implementation of buffers.Kaz Kylheku2017-04-211-0/+97
* Makefile (OBJS): New objects itypes.o and buf.o. * buf.c, buf.h: New files. * itypes.c, itypes.h: New files. * lib.c (obj_print_impl): Handle BUF via buf_print and buf_pprint. (init): Call itypes_init and buf_init. * parser.h (end_of_buflit): Declared. * parser.l (BUFLIT): New exclusive state. (grammar): New rules for recognizing start of buffer literal and its interior. (end_of_buflit): New function. * parser.y (HASH_B_QUOTE): New token. (buflit, buflit_items, buflit_item): New nonterminals and corresponding grammar rules. (i_expr, n_expr): These symbols now generate a buflit; a buffer literal is a kind of expression. (yybadtoken): Handle HASH_B_QUOTE case.