* mes.c (type_t): Add CONTINUATION.
(scm_t): Add continuation;
(scm_call_with_current_continuation): New symbol.
(scm_symbol_call_with_current_continuation): New special.
(g_continuations): New global
(CONTINUATION): New field accessor.
(MAKE_CONTINUATION): New make_cell helper.
(car_): Update.
(eval_apply): Implement call/cc.
* module/mes/display.mes (display): Handle continuations.
* module/mes/type-0.mes (<cell:continuation>): New type.
(cell-type-alist): Add it.
(continuation?): New function.
* tests/base.test ("call/cc"): New test.
* math.c (modulo): Modulo of negative value correctly.
* module/mes/bytevectors.mes (bytevector-u32-native-set!):
(bytevector-u16-native-set!): Use ash instead of quotient.
* GNUmakefile (CPPFLAGS): Include VERSION.
* mes.c (main): Use it. Add --dump and --load to --help.
(scm_symbol_mes_prefix, scm_symbol_mes_version): New sybols.
(mes_symbols): Use them to set prefix and version.
* module/mes/base-0.mes (effective-version): Use %version.
* module/mes/repl.mes (welcome): Likewise.
* module/mes/read-0.mes (read-hash): New function.
(read-word): Use it.
(eat-whitespace): Rewrite.
(display): Minimal implementation through core.
* lib.c (stderr_): Support printing of strings while booting.
* mes.c (write_byte): Rename from write_char.
* module/mes/display.mes (display): Fixes for write: char, closure, procedure.
(write-char, write, with-output-to-string): New functions.
* tests/read.test: Include base-0 to see some output.
* tests/display.test: New file.
* GNUmakefile (TESTS): Add it.
* posix.c (stderr_): New function.
* display.c: Remove.
* mes.c: Remove includes. Use stderr_ instead of display_.
(gc_loop): Preserve function's name.
(arity_): New function.
* GNUmakefile (mes.o): Remove dependency on display.
* module/mes/read-0.mes: Use core:stderr instead of display, newline.
(newline): New function.
* module/mes/base-0.mes: Use core:stderr instead of display.
Include (mes display).
* module/mes/display.mes: New file.
* lib.c (assert_defined): Move from mes.c.
(string_to_cstring): Move from posix.c
* build-aux/mes-snarf.scm (function-environment): Initialize function
name with scheme string.
* string.c (string_append): Remove.
* module/mes/type-0.mes (string-append): New function.
* module/mes/base-0.mes: Include type-0 without using string-append.
* mes.c (make_keyword): Remove.
* module/mes/read-0.mes (<cell:keyword>): New global.
(read-word): Use it with make_cell instead fo make-keyword.
* strting.c (symbol_to_keyword): Use make_cell instead of make_keyword.
* module/mes/read-0.mes (<macro>): New global.
(env:macro): Use it with make_cell instead of make_macro.
* mes.c (make_macro): Remove.
* type.c (car_): Rename from mes_car.
(cdr_): Rename from mes_cdr.
* reader.c (lookup_): Rename from lookup. Remove all lookups except
for numbers and symbols. Update callers.
* mes.c (make_symbol_): Rename from internal_make_symbol. Update
callers.
* module/mes/read-0.mes (lookup): New function.
(read-word): Remove all lookup calls, except for numbers and symbols.
* build-aux/mes-snarf.scm (symbol->names): New function
(function->environment): Initialize symbol.
(generate-includes): Also write .symbol-names.i.
* mes.c (mes_symbols): Include it. Remove internal_lookup_symbol.
* display.c (display): Handle display of nil in symbol list.
* reader.c (internal_lookup_symbol): Remove name-fu.
* module/mes/peg.mes: New file.
* module/mes/peg/cache.scm: New file.
* module/mes/peg/codegen.scm: New file.
* module/mes/peg/simplify-tree.scm: New file.
* module/mes/peg/string-peg.scm: New file.
* module/mes/peg/using-parsers.scm: New file.
* tests/peg.test: New file.
* GNUmakefile (TESTS): Add it.