aboutsummaryrefslogtreecommitdiff
path: root/gdb/c-lang.c
AgeCommit message (Collapse)AuthorFilesLines
1995-11-30 * ch-exp.y: Replaced by ...Per Bothner1-4/+4
* ch-exp.c: New file. Use recursive-descent. Recognize labelled array tuples and powerset ranges. * Makefile.in: Update for no longer using yacc for ch-exp. * c-lang.c: Make various functions non-static. * c-lang.h: Add bunches of prototypes. * cp-valprint.c (cp_print_value_fields): Also take address. (cp_print_value): Likewise. Use baselcass_offset. * stabsread.c (current_symbol): New static variable. (type_synonym_name): Remove. (read_type): If copying, make copy be a TYPE_CODE_TYPEDEF. (read_array_type): Don't need to handle undefined element type here. (cleanup_undefined_types): Ditto. (read_range_type): Look for Chill ranges. * valops.c (value_assign): Fix case lval_internalvar - don't try to assign into old value (which might be too small!). (value_coerce_array): No longer need special VALUE_REPEATED handling. (value_arg_coerce): Cleaner array->pointer decay mechanism. (search_struct_field): Use baseclass_offset rather than baseclass_addr. (value_slice): Use get_discrete_bounds. * value.h (COERCE_VARYING_ARRAY): Take type argumnt as well. * values.c (baseclass_offset): Change parameter interface. (baseclass_addr): Removed. * c-typeprint.c, c-valprint.c, ch-valprint.c, values.c, valops.c: Add check_typedef/CHECK_TYPEDEF as needed.
1995-08-02Update FSF address.Fred Fish1-1/+1
1995-02-12 * language.h (struct language_defn): New field evaluate_exp.Per Bothner1-0/+3
* c-lang.c (c_language_defn, cplus_language_defn, asm_langauge_defn), f-lang.c (f_language_defn), language.c (unknown_language_defn, auto_language_defn, local_language_defn), m2-lang.c (m2_language_defn): Set evaluate_exp to evaluate_subexp_standard. * ch-lang.c (evaluate_subexp_chill): New function. Chill-specific support for MULTI_SUBSCRIPT. (chill_language_defn): Set evaluate_exp to evaluate_subexp_chill. * eval.c (enum noside): Move from here .... * expression.h (enum noside): ... to here. (evaluate_subexp_standard): New prototype. * eval.c (evaluate_subexp): Renamed to evaluate_subexp_standard. Removed lo-longer-needed test for chill_varying_type. (evaluate_subexp): New. Calls exp->language_defn->evaluate_exp.
1995-02-02 * eval.c (evaluate_subexp): Clean up handling ofPer Bothner1-0/+6
OP_UNDETERMINED_ARGLIST (no backtracking, more general). * f-valprint.c (f_val_print): Print TYPE_CODE_STRING using LA_PRINT_STRING, and not val_print_string (which reads from inferior). * ch-lang.c (chill_is_varying_struct), ch-lang.h: Remve function duplicate function made redundant by chill_varying_type. Re-write of f77 string and complex number support: * language.h (struct language_defn): New fields string_lower_bound and string_char_type. * c-lang.c (c_language_defn, cplus_language_defn, asm_language_defn), language.c (unknown_language_defn, auto_language_defn, local_language_defn), m2-lang.c (m2_language_defn), f-lang.c (f_language_defn), ch-lang.c (chill_language_defn): Set new fields. * gdbtypes.c (create_string_type): Use new string_char_type field. * valops.c (value_string): Use new string_lower_bound field. * defs.h (TARGET_COMPLEX_BIT, TARGET_DOUBLE_COMPLEX_BIT): Removed. * f-lang.c (f_create_fundamental_type, _initialize_f_language), m2-lang.c (m2_create_fundamental_type), gdbtypes.c (_initialize_gdbtypes): Set TYPE_TARGET_TYPE of complex types. Set their TYPE_CODEs to TYPE_CODE_COMPLEX. * mdebugread.c (mdebug_type_complex, mdebug_type_double_complex): Removed. Use builtin_type_complex and builtin_type_double_complex. * gdbtypes.h (enum type_code): Removed TYPE_CODE_LITERAL_STRING and TYPE_CODE_LITERAL_COMPLEX. * c-typeprint.c, f-typeprint.c, f-valprint.c, eval.c: Removed uses of TYPE_CODE_LITERAL_STRING and TYPE_CODE_LITERAL_COMPLEX. * gdbtypes.c, gdbtypes.h (f77_create_literal_complex_type, f77_create_literal_string_type): Removed. * value.h (VALUE_LITERAL_DATA, VALUE_SUBSTRING_MEMADDR, VALUE_SUBSTRING_MYADDR): Removed. * expression.h (enum exp_opcode): Rename OP_F77_LITERAL_COMPLEX to OP_COMPLEX. * parse.c: Update accordingly. * f-valprint.c (f77_print_cmplx): Removed. (f_val_print case TYPE_CODE_COMPLEX): Re-write to use print_floating. * f-exp.y (STRING_LITERAL): Use OP_STRING instead of OP_ARRAY. * eval.c (evaluate_subexp): For case OP_ARRAY, don't call f77_value_literal_string. * valops.c, value.h (f77_value_literal_string, f77_value_substring, f77_assign_from_literal_string, f77_assign_from_literal_complex): Removed. (value_assign): No longer need to handle literal types. * valops.c (f77_value_literal_complex), value.h: Re-written and renamed to value_literal_complex. Last arg is now a (complex) type. * valops.c (f77_cast_into_complex): Re-written and renamed to cast_into_complex. * eval.c (evaluate_subexp): Update accordingly.
1995-01-26 * language.h (struct language_defn): New field c_style_arrays.Per Bothner1-0/+3
* language.c (unknown_language_defn, auto_language_defn, local_language_defn), c-lang.c (c_language_defn, cplus_language_defn, asm_language_defn): Set c_style_arrays to true. * m2-lang.c (m2_language_defn), ch-lang.c (chill_language_defn), f-lang.c (f_language_defn): Set c_style_arrays to false. * valops.c (value_string): If c_style_array is not set, allocate string in gdb (not inferior) using allocate_value. * value.h (COERCE_ARRAY), valops.c (value_addr, value_arg_coerce): Only call value_coerce_array if current_language->c_style_arrays. * values.c: Add #include "language.h". (Needed for COERCE_ARRAY.) * valops.c (chill_varying_type): New predicate. * valops.c (value_cast): Support assigning a fixed string or array to a variable string/array structure. * valarith.c (value_subscripted_rvalue): Extra parameter lowerbound. Check index>=lowerbound, and then add lowerbound to index here, instead of in caller. Generalize to arbitrary lval_types. (value_subscript): Use enhanced value_subscripted_rvalue if c_style_arrays is false (and index is in range).
1994-08-03 * language.h (struct language_defn): Remove unused fieldStan Shebs1-3/+0
la_longest_float. (longest_float): Remove, no longer used. * language.c (unknown_language_defn, auto_language_defn, local_language_defn): Remove init of la_longest_float field. * c-lang.c (c_language_defn, cplus_language_defn, asm_language_defn): Ditto. * m2-lang.c (m2_language_defn): Ditto.
1994-07-06 * dbxread.c, elfread.c, mipsread.c, nlmread.c, os9kread.c:Peter Schauer1-1/+1
Move "no debugging symbols found" test to symfile.c. * symfile.c (syms_from_objfile, reread_symbols): Add "no debugging symbols found" test. * coffread.c (init_stringtab): Handle stripped files with a stringtab offset of zero gracefully. * osfsolib.c (solib_create_inferior_hook): Use DYNAMIC flag from BFD instead of stop_pc heuristic to determine if it is a dynamically linked object file. * procfs.c (wait_fd): Handle ENOENT error return from PIOCWSTOP ioctl, it indicates that the process has exited.
1994-06-21 * c-lang.c (asm_language_defn): New definitions for language_asm,Peter Schauer1-0/+24
mostly copied from c_language_defn, to avoid warnings when switching between c and asm stack frames.
1994-06-05 Fix value_print, which used to be ostensibly langauge-indepentdent,Per Bothner1-0/+2
but would print pointers and arrays in C syntax. Instead, call a language-specific function. See ChangeLog for details.
1994-02-03 * printcmd.c (decode_format): Don't blithely set the size forJim Kingdon1-4/+0
an address to 'w'. Make it 'g' or 'h', depending on TARGET_PTR_BIT. * defs.h: Just typedef CORE_ADDR to bfd_vma. Include bfd.h. If BFD64, make a LONGEST a BFD_HOST_64_BIT. * defs.h (longest_to_int): Don't depend on CC_HAS_LONG_LONG; instead always just check against INT_MIN and INT_MAX (this also fixes things if sizeof (long) > sizeof (int), e.g. Alpha). * config/pa/tm-hppa.h, config/i386/sun386.h, config/rs6000/tm-rs6000.h: Don't define LONGEST or BUILTIN_TYPE_LONGEST. * gdbtypes.h: Remove BUILTIN_TYPE_LONGEST and BUILTIN_TYPE_UNSIGNED_LONGEST. * language.h, c-lang.c, ch-lang.c, m2-lang.c: Remove longest_int and longest_unsigned_int. * value.h (struct value): Just align to LONGEST, rather than worrying about CC_HAS_LONG_LONG. * valarith.c (value_binop, _initialize_valarith): Figure out type ourself based on sizeof (LONGEST) rather than relying on BUILTIN_TYPE_LONGEST. The point is that we don't depend on CC_HAS_LONG_LONG anymore. * valprint.c (val_print_type_code_int): Just call extract_unsigned_integer directly, rather than going through unpack_long. * printcmd.c (decode_format): Remove code which would sometimes change 'g' size to 'w' for integers. print_scalar_formatted handles printing huge integers well enough, thank you.
1993-11-15 * gdbtypes.h: Add TYPE_FLAG_TARGET_STUB.Jim Kingdon1-5/+5
* gdbtypes.c (check_stub_type): On TYPE_FLAG_TARGET_STUB, do what cleanup_undefined_types does for arrays, except we clear TYPE_FLAG_TARGET_STUB if we fix up the type. * stabsread.c (cleanup_undefined_types): Add comments about how doing arrays here is no longer the clean way to do it. (read_array_type): Set TYPE_FLAG_TARGET_STUB as well as calling add_undefined_type. * c-typeprint.c, ch-typeprint.c: Move call to check_stub_type outside switch so it happens for all type codes. * cp-valprint.c (cp_print_value_fields): Recurse to val_print, instead of c_val_print, so that check_stub_type gets called. * gdbtypes.h, gdbtypes.c, m2-lang.c, ch-lang.c, c-lang.c: Remove TYPE_FLAG_SIGNED. It was inconsistently set, never checked (except in recursive_dump_type), and is pointless.
1993-11-05 * c-lang.c (c_printstr): Print "" to stream (like all the otherJim Kingdon1-1/+1
output from this function), not gdb_stdout.
1993-11-01Change the stream argument to _filtered to GDB_FILE *.Thomas Lord1-4/+4
Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-09-28Tue Sep 28 09:45:38 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)Jim Kingdon1-6/+6
* symmisc.c (print_symbol): Use %02x not %2x for LOC_CONST_BYTES. Clean up problems with targets and hosts that have 64 bit longs and pointers and 32 bit ints. * breakpoint.c, buildsym.c, c-lang.c, c-valprint.c, ch-lang.c, ch-valprint.c, core.c, cp-valprint.c, dbxread.c, exec.c, expprint.c, gdbtypes.c, infcmd.c, language.c, language.h, m2-lang.c, maint.c, mips-tdep.c, mipsread.c, partial-stab.h, printcmd.c, remote-vx.c, solib.c, source.c, stack.c, symfile.c, symmisc.c, symtab.c, valops.c, valprint.c, xcoffexec.c: Change all printf formats from %x to %lx if outputting an address. Change la_*_format to use long format. local_hex_string, local_hex_string_custom now take an unsigned long argument, change all callers. * coffread.c (read_coff_symtab): Remove superfluous cast for complaint output. * dbxread.c (end_psymtab): Cast MSYMBOL_INFO to long, not int. * findvar.c, value.h (write_register): Change register value to long. * gdbtypes.h (struct type): Change `bitsize' to long as TYPE_FIELD_STATIC_PHYSNAME uses this field as a pointer. * inferior.h (struct inferior_status): Change type of stop_pc to CORE_ADDR. * language.h (local_octal_string, local_octal_string_custom): Remove prototype, the functions are neither defined nor used. * mipsread.c (parse_symbol): Use temporary variable for bitsize as f->bitsize is a long now. * objfiles.c (add_to_objfile_sections, build_objfile_section_table): Use unsigned long casts instead of int for abusing sections_end pointer as integer. * stack.c (parse_frame_specification): Change type of `args' to CORE_ADDR for SETUP_ARBITRARY_FRAME. * printcmd.c (make_vasize): Allow redefinition via MAKEVA_SIZE. * mipsread.c (parse_type): Alpha cc now supports the t->continued bit, update algorithm to match the way the compiler uses it.
1993-02-18Bugfix for length==0 case.John Gilmore1-1/+1
1993-02-18* c-lang.c (c_printstr): If a C string ends in a null, don'tJohn Gilmore1-1/+7
print the null.
1993-01-16 * c-exp.y (exp:STRING): Convert C strings into array-of-charFred Fish1-90/+0
constants with an explicit null byte terminator. OP_STRING is now used for real string types. * c-lang.c (builtin_type_*): Move declarations to lang.c since they are used by all languages. * c-lang.c (_initialize_c_language): Move initializations of builtin_type_* to lang.c. * c-typeprint.c (c_type_print_varspec_prefix, c_type_print_varspec_suffix): TYPE_CODE_PASCAL_ARRAY renamed to TYPE_CODE_STRING. * c-valprint.c (c_val_print): Change the way character arrays are printed as strings to be consistent with the way strings are printed when pointer-to-char types are dereferenced. Remove test of print_max before calling val_print_string, which now does it's own test. * eval.c (evaluate_subexp): Add case for OP_ARRAY. * expprint.c (print_subexp, dump_expression): Add case for OP_ARRAY. * expression.h (enum exp_opcode): Add OP_ARRAY and document. * gdbtypes.c (builtin_type_*): Add declarations moved from c-lang.c. * gdbtypes.c (create_string_type): New function to create real string types. * gdbtypes.c (recursive_dump_type): TYPE_CODE_PASCAL_ARRAY renamed to TYPE_CODE_STRING. * gdbtypes.c (_initialize_gdbtypes): Add initializations of builtin_type_* types moved from c-lang.c. * gdbtypes.h (enum type_code): TYPE_CODE_PASCAL_ARRAY renamed to TYPE_CODE_STRING. * gdbtypes.h (builtin_type_string): Add extern declaration. * gdbtypes.h (create_string_type): Add prototype. * m2-lang.c (m2_create_fundamental_type): TYPE_CODE_PASCAL_ARRAY renamed to TYPE_CODE_STRING. * m88k-tdep.c (pushed_size): TYPE_CODE_PASCAL_ARRAY renamed to TYPE_CODE_STRING. * mipsread.c (_initialize_mipsread): TYPE_CODE_PASCAL_ARRAY renamed to TYPE_CODE_STRING. * parse.c (length_of_subexp, prefixify_subexp): Add case for OP_ARRAY. * printcmd.c (print_formatted): Recognize TYPE_CODE_STRING. * typeprint.c (print_type_scalar): TYPE_CODE_PASCAL_ARRAY renamed to TYPE_CODE_STRING. * valops.c (allocate_space_in_inferior): New function and prototype, using code ripped out of value_string. * valops.c (value_string): Rewritten to use new function allocate_space_in_inferior, but temporarily disabled until some other support is in place. * valops.c (value_array): New function to create array constants. * valprint.c (val_print_string): Add comment to document use, complete rewrite to fix several small buglets. * value.h (value_array): Add prototype. * value.h (val_print_string): Change prototype to match rewrite. **** start-sanitize-chill **** * ch-valprint.c (chill_val_print): Add case for TYPE_CODE_STRING. * ch-exp.y (match_character_literal): Disable recognition of control sequence form of character literals and document why. **** end-sanitize-chill ****
1992-12-18 * Makefile.in (VERSION): Bump to 4.7.4.Fred Fish1-2/+5
* Makefile.in (SFILES_MAINDIR): Add typeprint.c, c-typeprint.c, m2-typeprint.c, c-valprint.c cp-valprint.c m2-valprint.c. * Makefile.in (HFILES): Add valprint.h. * Makefile.in (OBS): Add typeprint.o, c-typeprint.o, m2-typeprint.o, c-valprint.o, cp-valprint.o m2-valprint.o. * typeprint.c, typeprint.h: New files for language independent type printing functions. * c-typeprint.c, m2-typeprint.c: New files for language dependent type printing functions and definitions. * valprint.h: New include file for language independent value printing definitions. * c-valprint.c, cp-valprint.c, m2-valprint.c: New files for language dependent value printing functions. * c-exp.y (production ptype): Add range_type variable and use new create_range_type function. * c-exp.y (tokentab2, tokentab3), c-lang.c (c_op_print_tab), infcmd.c (path_var_name), language.c (unk_op_print_tab), m2-lang.c (m2_op_print_tab): Change from ANSI-obsolescent "const static" to ANSI-conformant "static const". * c-exp.y (c_create_fundamental_type): Remove unused nbytes. * c-exp.y (c_language_defn, cplus_language_defn): Add c_print_type, and c_val_print. * c-lang.h (c_print_type, c_val_print): Add prototypes. * coffread.c (decode_type): Add range_type variable and call to new create_range_type function. * complaints.c (complain): Remove unused val variable. * complaints.c (_initialize_complaints): Make it void. * convex-tdep.c (value_of_trapped_internalvar): Add range_type variable and call new create_range_type function. * defs.h (enum val_prettyprint): Move enum from value.h to here so we can avoid having to include value.h just for prototypes that need the enum (thanks ANSI). * dwarfread.c (struct_type): Local anonymous_size variable is only used if !BITS_BIG_ENDIAN. * dwarfread.c (decode_subscript_data_item): Add rangetype variable and call new create_range_type function. * elfread.c (elf_symfile_read): Remove unused dbx and text_sect variables. * eval.c (evaluate_subexp): Remove unused local variable name and the statement with no side effects that initializes it. * expprint.c (print_subexp): Change local_printstr to LA_PRINT_STRING. * gdbtypes.c (create_range_type): New function that creates a range type using code fragments from object file readers as an example of what has to be initialized. * gdbtypes.c (create_array_type): Removed index_type, low_bound, and high_bound parameters, replaced with a single range_type parameter. Change function body to use passed in range_type rather than handcrafting one. * gdbtypes.h (create_range_type): Add prototype. * gdbtypes.h (create_array_type): Change prototype parameters. * infrun.c (normal_stop): Remove unused local variables tem and c. * infrun.c (hook_stop_stub): Return 0 rather than random value. * language.c (unk_lang_print_type, unk_lang_val_print): Add stub functions that call error if called. * language.c (unknown_language_defn, auto_language_defn, local_language_defn): Add initializers unk_lang_print_type and unk_lang_val_print. * language.h (struct language_defn): Reformat for larger comments, add la_print_type and la_val_print members. Add LA_PRINT_TYPE and LA_VAL_PRINT macros. Change local_printchar to LA_PRINT_CHAR and local_printstr to LA_PRINT_STRING. * m2-lang.c (m2_create_fundamental_type): Remove unused local variable nbytes. * m2-lang.c (m2_language_defn): Add initializers m2_print_type and m2_val_print. * m2-lang.h (m2_print_type, m2_val_print): Add prototypes. * main.c (execute_command): Remove unused local variable cmdlines. * main.c (echo_command), stabsread.c (read_type), printcmd.c (clear_displays), symmisc.c (block_depth), values.c (clear_value_history): Make testing of truth value of assignment result explicit. * mipsread.c (upgrade_type): Update FIXME to include future use of create_range_type. * printcmd.c (ptype_command, ptype_eval, whatis_command, whatis_exp, maintenance_print_type): Move prototypes and functions to new typeprint.c. * printcmd.c (_initialize_printcmd): Move add_com calls for ptype_command and whatis_command to new typeprint.c. * ser-bsd.c (serial_open): Remove unused variable sgttyb. * source.c (find_source_lines): Local variable c only used when LSEEK_NOT_LINEAR is defined. * stabsread.c (read_array_type): Use new create_range_type function. * stabsread.c (read_range_type): Add new index_type variable and call new create_range_type function rather than handcrafting range types. * symmisc.c (type_print_1): Change usages to LA_PRINT_TYPE. * symtab.c (typedef_print usages): Use c_typedef_print, renamed. * symtab.c (type_print_base usages): Use c_type_print_base. * symtab.c (type_print_varspec_prefix usages): Use c_type_print_varspec_prefix. * symtab.c (type_print_method_args usages): Use cp_type_print_method_args. * valprint.c: Completely ripped apart and the fragments used to create c-valprint.c, cp-valprint.c, m2-valprint.c, and valprint.h. Remaining stuff is language independent. * value.h (struct fn_field): Forward declare for prototypes. * value.h (type_print_1): Remove prototype. * value.h (enum val_prettyprint): Moved to defs.h. * value.h (typedef_print): Prototype renamed to c_typedef_print. * value.h (baseclass_offset): Add prototype. **** start-sanitize-chill **** * Makefile.in (SFILES_MAINDIR): Add ch-typeprint.c, ch-valprint.c. * Makefile.in (OBS): Add ch-typeprint.o, ch-valprint.o. * ch-typeprint.c: New file for language dependent type printing. * ch-valprint.c: New file for language dependent value printing. * ch-exp.y (parse_number): Remove prototype and stub function. * ch-exp.y (decode_integer_literal): Removed unused digits and temp variables. * ch-exp.y (convert_float): Completely ifdef out for now. * ch-exp.y (tokentab2, tokentab3, tokentab4, tokentab5), ch-lang.c (chill_op_print_tab): Change from ANSI-obsolescent "const static" to ANSI-conformant "static const". * ch-exp.y (yylex): Add unhandled storage class enumeration literals to switch statement for completeness. * ch-lang.c (chill_create_fundamental_types): Remove unused nbytes variable. Change dummy type to 2 bytes to match int. Handle FT_VOID types gratuituously added to chill DWARF by compiler. Change FT_CHAR case to generate an TYPE_CODE_CHAR type rather than a one byte TYPE_CODE_INT type. * ch-lang.c (chill_language_defn): Add chill_print_type and chill_val_print. * ch-lang.h (chill_print_type, chill_val_print): Add prototypes. **** end-sanitize-chill ****
1992-12-09 * c-lang.c (_initialize_c_language): Name changed fromFred Fish1-1/+1
_initialize_c_exp. * m2-lang.c (_initialize_m2_language): Name changed from _initialize_m2_exp. * m2-lang.c (_initialize_m2_language): Change malloc to xmalloc since it is no longer inside m2-exp.y, where it was remapped by Makefile. **** start-sanitize-chill **** * ch-lang.c (_initialize_chill_language): Name changed from _initialize_chill_exp. **** end-sanitize-chill ****
1992-12-09 * c-exp.y, m2-exp.y: Migrate code that has nothing to do withFred Fish1-0/+528
expression parsing into c-lang.c and m2-lang.c respectively. * c-lang.c, m2-lang.c: New files, code migrated from c-exp.y and m2-exp.y respectively. * c-lang.h, m2-lang.h: New files, internal interfaces between c-* and m2-* files respectively. * Makefile.in (SFILES_MAINDIR): Add c-lang.c, m2-lang.c. * Makefile.in (HFILES): Add c-lang.h, m2-lang.h. * Makefile.in (OBS): Add c-lang.o, m2-lang.o. * expression.h (struct block): Forward declaration for prototypes. * language.h (struct objfile): Forward declaration for prototypes. **** start-sanitize-chill **** * Makefile.in (SFILES_MAINDIR): Add ch-lang.c. * Makefile.in (HFILES): Add ch-lang.h. * Makefile.in (OBS): Add ch-lang.o. * ch-exp.y: Migrate code that has nothing to do with expression parsing into ch-lang.c. * ch-lang.c: New file, code migrated from c-exp.y. * ch-lang.h: New file, internal interface between ch-* files. **** end-sanitize-chill ****