(regexp-opt): Update comment and adapt the code the new meaning of the
`paren' argument of regex-opt-group for shy-groups.
(regexp-opt-depth): Handle shy groups as well as backslashed backslashes.
(regexp-opt-group): Turn the leading comment into a docstring.
Allow `paren' to be a string (the string to use to open a group).
Remove open-presuf and close-presuf.
Instead of checking for `all one-char' and then later on check for
`several one-char', handle both cases close together.
Also apply a more generic algorithm for suffixes (the mirror image
of the algorithm used for prefixes).
Use shy-groups.
\Use nreverse rather than reverse.
(regexp-opt-try-suffix): Removed.
from comint-mode-map, so we can just inherit from it. Also, move the
initialization into the `defvar' since there's no docstring anyway
and it's fairly short.
(inferior-scheme-mode): Define it as derived-mode: the code is shorter
and this way we inherit from comint-mode-map rather than copying it.
by bugs revealed when trying to add shy-groups. Overall, what happened
is that loops are now structured a little differently, groups can be
shy and the code is a little simpler.
(enum re_opcode_t): Remove jump_past_alt, maybe_pop_jump,
push_dummy_failure and dumy_failure_jump.
Add on_failure_jump_(exclusive, loop and smart).
Also fix the comment for (start|stop)_memory since they now only take
one argument (the second has becomes unnecessary).
(print_partial_compiled_pattern): Adjust for changes in re_opcode_t.
(print_compiled_pattern): Use %ld to printf long ints and flush to make
debugging a little easier.
(union fail_stack_elt): Make the integer unsigned.
(struct fail_stack_type): Add a `frame' element.
(INIT_FAIL_STACK): Init `frame' as well.
(POP_PATTERN_OP): New macro for re_compile_fastmap.
(DEBUG_PUSH, DEBUG_POP): Remove.
(NUM_REG_ITEMS): Remove.
(NUM_NONREG_ITEMS): Adjust.
(FAILURE_PAT, FAILURE_STR, NEXT_FAILURE_HANDLE, TOP_FAILURE_HANDLE):
New macros for the cycle detection.
(ENSURE_FAIL_STACK): New macro for PUSH_FAILURE_(REG|POINT).
(PUSH_FAILURE_REG, POP_FAILURE_REG, CHECK_INFINITE_LOOP): New macros.
(PUSH_FAILURE_POINT): Don't push registers any more.
The pattern address pushed is not the destination of the jump
but the source of it instead.
(NUM_FAILURE_ITEMS): Remove.
(POP_FAILURE_POINT): Adapt to the new stack structure (i.e. pop
registers before the actual failure point).
Don't hardcode any meaning for str==NULL anymore.
(union register_info_type, REG_MATCH_NULL_STRING_P, IS_ACTIVE)
(MATCHED_SOMETHING, EVER_MATCHED_SOMETHING, SET_REGS_MATCHED): Remove.
(REG_UNSET_VALUE): Use NULL (why not?).
(compile_range): Remove declaration since it doesn't exist.
(struct compile_stack_elt_t): Remove inner_group_offset.
(old_reg(start|end), reg_info, reg_dummy, reg_info_dummy): Remove.
(regex_grow_registers): Remove dead code.
(FIXUP_ALT_JUMP): New macro.
(regex_compile): Add shy-groups
Change loops to use on_failure_jump_smart&jump instead of
on_failure_jump&maybe_pop_jump.
Change + loops to eliminate the initial (dummy_failure_)jump.
Remove c1_base (looks like unused variable to me).
Use `jump' instead of `jump_past_alt' and don't bother with
push_dummy_failure in alternatives since it is now unnecessary.
Use FIXUP_ALT_JUMP.
Eliminate a useless `#ifdef emacs' for (re)allocating the stack.
(re_compile_fastmap): Remove dead variables i and num_regs.
Exit from loop when bufp->can_be_null rather than jumping to `done'.
Avoid jumping backwards so as to ensure termination.
Use PATTERN_STACK_EMPTY and POP_PATTERN_OP.
Improved handling of backreferences.
Remove dead code in handling of `anychar'.
(skip_noops, mutually_exclusive_p): New functions taken from the
handling of `maybe_pop_jump' in re_match_2_internal.
Slightly improve mutually_exclusive_p to handle ".+\n".
((lowest|highest)_active_reg, NO_(LOWEST|HIGHEST)_ACTIVE_REG)
Remove.
(re_match_2_internal): Use %p instead of 0x%x when printf'ing ptrs.
Don't SET_REGS_MATCHED anymore. Remove many dead variables.
Push register (in `start_memory') on the stack rather than storing it
in old_reg(start|end).
Remove the cycle detection from `stop_memory', replaced by the use
of on_failure_jump_loop for greedy loops.
Add code for the new on_failure_jump_<foo>.
Remove ad-hoc code in `on_failure_jump' to push more registers
in the case of a loop.
Take out code from `maybe_pop_jump' into separate functions and
adapt it to the semantics of `on_failure_jump_smart'.
Remove jump_past_alt, dummy_failure_jump and push_dummy_failure.
Remove dummy_failure handling and handling of `failures to jump
to on_failure_jump' (this last one was already dead code, it seems).
((group|alt|common_op)_match_null_string_p): Remove.
it as the default.
(mail-send): Test mail-send-nonascii also for the new 'mime value.
(sendmail-send-it): Conditionaly add MIME headers specifying the
used character set.
coding-category-utf-16-be, and coding-category-utf-16-le.
(coding_category_name): Include "coding-category-utf-8",
"coding-category-utf-16-be", and "coding-category-utf-16-le".
(UTF_8_1_OCTET_P) (UTF_8_EXTRA_OCTET_P) (UTF_8_2_OCTET_LEADING_P)
(UTF_8_3_OCTET_LEADING_P) (UTF_8_4_OCTET_LEADING_P)
(UTF_8_5_OCTET_LEADING_P) (UTF_8_6_OCTET_LEADING_P): New macros.
(detect_coding_utf_8): New function.
(UTF_16_INVALID_P) (TF_16_HIGH_SURROGATE_P)
(UTF_16_LOW_SURROGATE_P): New macros.
(detect_coding_utf_16): New function.
(detect_coding_mask): Fix bug of returning wrong mask bits in the
case that detect_coding_XXX returns a mask not set in
priorities[i].
(detect_eol_type_in_2_octet_form): New function.
(detect_eol): If cooding->category_idx is for UTF-16, call
detect_eol_type_in_2_octet_form instead of dectect_eol_type.
(detect_coding_system): Don't include `nil' coding-system in the
result.
(Fupdate_coding_systems_internal): Update all coding-categories.
(CODING_CATEGORY_IDX_UTF_16_BE)
(CODING_CATEGORY_IDX_UTF_16_LE): New macros
(CODING_CATEGORY_IDX_RAW_TEXT) (CODING_CATEGORY_IDX_BINARY)
(CODING_CATEGORY_IDX_MAX): Re-numbered.
(CODING_CATEGORY_MASK_UTF_8) (CODING_CATEGORY_MASK_UTF_16_BE)
(CODING_CATEGORY_MASK_UTF_16_LE): New macros.
(CODING_CATEGORY_MASK_ANY): Include them.
(CODING_CATEGORY_MASK_UTF_16_BE_LE): New macro.
coding-category-utf-8, coding-category-utf-16-be, and
coding-category-utf-16-le in the argument for set-coding-priority.
(reset-language-environment): Initialize coding-category-utf-8,
coding-category-utf-16-be, and coding-category-utf-16-le to nil.
