* src/alloc.c (NEAR_STACK_TOP): Hoist from here ...
* src/thread.h: ... to here.
* src/print.c (print_object): Use NEAR_STACK_TOP instead of raw
buffer address. This is more natural, and pacifies GCC 13.
* configure.ac (ANDROID_CFLAGS): Add sfnt-related font objects
to ANDROID_OBJ when not building stubs.
* lisp/startup.el (android-fonts-enumerated): New variable.
(normal-top-level): Set it. Also enumerate fonts as early as
possible upon startup.
* src/alloc.c (cleanup_vector): Only finalize Android font
entities.
(garbage_collect): Mark sfntfont.c.
* src/android.c (struct android_emacs_drawable): New field
`damage_rect'.
(android_init_emacs_drawable): Initialize
Lorg/gnu/emacs/EmacsDrawable;#damageRect(Landroid/graphics/rect;)V.
(android_create_gc): Initialize cached GC fields.
(android_free_gc): Free cached GC clip rectangles.
(android_change_gc): Cache fields as appropriate.
(android_set_clip_rectangles): Set cached clip rectangles for
easy access from C.
(android_get_gc_values): Use cached values.
(android_get_image): Remove obsolete comment.
(android_lock_bitmap, android_damage_window): New functions that
don't parallel anything on X.
* src/android.h: Update prototypes.
* src/androidfns.c (android_default_font_parameter): Set Droid
Sans Mono as the default monospace font.
(Fx_create_frame): Register the sfntfont driver.
* src/androidgui.h (struct android_gc): Add C side caches for
clip rectangles and the foreground and background colors.
* src/androidterm.h: Update prototypes.
* src/dispextern.h (struct gui_box): New struct.
(gui_union_rectangles): New function.
* src/emacs.c (android_emacs_init): Initialize Android font
stuff late.
* src/font.c (font_make_entity): Clear `is_android' field on
Android.
(font_make_entity_android): Set `is_android' field.
* src/font.h (struct font_entity): New field `is_android'.
* src/print.c (print_vectorlike): Don't print private data,
which could include Lisp_Misc.
* src/sfnt.c (sfnt_read_cmap_format_0, sfnt_read_cmap_format_2)
(sfnt_read_cmap_format_4, sfnt_read_cmap_format_6)
(sfnt_read_cmap_format_8, sfnt_read_cmap_format_12): Remove
buggy pragmas.
(sfnt_lookup_glyph_4_1): New function.
(sfnt_lookup_glyph_4): Handle malformed lookup tables found on
Android.
(sfnt_lookup_glyph): Fix overflow problems in glyph checks.
(sfnt_read_glyph): Handle empty glyphs. This implements some
behavior which everyone else seems to as well, but I can't find
documented in the TrueType Reference Manual.
(sfnt_free_glyph): Export correctly.
(sfnt_transform_coordinates): Make faster.
(sfnt_lerp_half): Fix lerping in some cases.
(sfnt_decompose_glyph): Handle empty glyphs correctly. Close
contours manually instead of waiting for the edge building
process to do that. This lets curves be handled correctly.
(struct sfnt_build_glyph_outline_context): Move internal struct
back to sfnt.c.
(sfnt_build_append): Fix detection of initial entry.
(sfnt_curve_to_and_build_1): Fix De Casteljau implementation.
(sfnt_curve_to_and_build): Use fixed point arithmetic to scale
outlines.
(sfnt_build_glyph_outline): Clear reference counts. Use fixed
point arithmetic.
(sfnt_prepare_raster): Align rasters to 4 bytes,
SFNT_POLY_ALIGNMENT. Fix calculation of offx and offy.
(sfnt_step_edge_by): Step edge by previously computed step_x.
(sfnt_build_outline_edges): Adjust for already closed contours.
Ignore edges abandoned after grid fit. Also precompute step_x
to avoid multiplication on each span rastered.
(sfnt_poly_edges): Improve alignment.
(sfnt_fill_span): Rewrite to avoid control flow in while loop.
(sfnt_poly_span): Remove unnecessary code.
(sfnt_raster_glyph_outline): Use raster stride instead of width.
(sfnt_test_edge, sfnt_test_raster, main): Improve debugging
code.
* src/sfnt.h (struct sfnt_glyph_outline): Add refcount field to
outline.
(struct sfnt_build_glyph_outline_context): Remove private
struct.
(struct sfnt_raster): Add refcount field to raster.
(struct sfnt_edge): Improve doc. Add `source_x' field used when
built with TEST.
(SFNT_CEIL_FIXED): New macro.
* src/sfntfont-android.c (sfntfont_android_saturate32)
(sfntfont_android_scale32, sfntfont_android_mul8x2)
(sfntfont_android_blend, U255TO256)
(sfntfont_android_composite_bitmap, sfntfont_android_union_boxes)
(sfntfont_android_put_glyphs, sfntfont_android_get_cache): New
functions.
(android_sfntfont_driver): New font driver.
(Fandroid_enumerate_fonts): New function.
(syms_of_sfntfont_android_for_pdumper, init_sfntfont_android)
(syms_of_sfntfont_android): Initialize default fonts, special
family mapping and font driver.
* src/sfntfont.c (struct sfnt_font_desc): New fields
`char_cache', `cmap_invalid' and `subtable'.
(sfnt_setup_coding_system): Improve commentary. Add default
branch. Fix return value.
(sfnt_safe_encode_coding_object_1)
(sfnt_safe_encode_coding_object_2):
(sfnt_safe_encode_coding_object): Use decode_coding_object
instead of encode_coding_object.
(sfnt_decode_font_string): Adjust for rename.
(sfnt_decode_foundry_name): New function.
(sfnt_weight_descriptions, sfnt_slant_descriptions)
(sfnt_width_descriptions): Fix definitions.
(sfnt_parse_style): Make function work.
(sfnt_enum_font): Initialize designer, char-cache and subtable
platform ID.
(sfntfont_charset_for_name, mark_sfntfont)
(sfntfont_charset_for_cmap): New functions.
(syms_of_sfntfont): New variable `sfnt-default-family-alist'.
* src/sfntfont.h (_SFNTFONT_H_): Update prototypes.
* src/xdisp.c (gui_union_rectangles): New function.
* src/print.c (print_vectorlike): Check for outdated node.
* src/treesit.c (treesit_check_node): Use the new function.
(treesit_node_uptodate_p): New function.
* src/treesit.h: Declare new function.
Additionally, print node's position in buffer.
* doc/lispref/parsing.texi (Retrieving Node): Reflect this change in
manual.
* src/print.c (print_vectorlike): Remove printing of buffer, add
printing of node position.
* src/treesit.c [WINDOWSNT]: Add MS-Windows boilerplate for
dynamically-loaded optional libraries.
(init_treesit_functions) [WINDOWSNT]: New function.
(load_tree_sitter_if_necessary): New function.
(ts_initialize): Call 'load_tree_sitter_if_necessary'.
(ts_delete_parser, ts_delete_query, ts_named_node_p): Wrapper
functions for TS calls from outside treesit.c.
(Ftreesit_parser_root_node, Ftreesit_parser_set_included_ranges)
(Ftreesit_parser_included_ranges, Ftreesit_node_type)
(Ftreesit_node_start, Ftreesit_node_end, Ftreesit_node_string)
(Ftreesit_node_parent, Ftreesit_node_child, Ftreesit_node_check)
(Ftreesit_node_field_name_for_child, Ftreesit_node_child_count)
(Ftreesit_node_next_sibling, Ftreesit_node_prev_sibling)
(Ftreesit_node_first_child_for_pos)
(Ftreesit_node_descendant_for_range, Ftreesit_node_eq)
(Ftreesit_query_compile, Ftreesit_query_capture)
(Ftreesit_search_subtree, Ftreesit_search_forward)
(Ftreesit_induce_sparse_tree): Call 'ts_initialize' before any
other TS functions.
(Ftreesit_available_p): 'treesit-available-p' implemented in C, so
that on WINDOWSNT the library could be loaded dynamically.
* src/treesit.h (ts_delete_parser, ts_delete_query)
(ts_named_node_p): Add prototypes.
* src/print.c (print_vectorlike):
* src/alloc.c (cleanup_vector): Call tree-sitter function via
wrappers defined in treesit.c, not directly, because WINDOWSNT
redefines the TS functions to be called via function pointers.
* src/Makefile.in (base_obj): Add treesit.o
(TREE_SITTER_OBJ): Remove.
* lisp/treesit.el (treesit-available-p): Remove: now implemented
in C.
* lisp/term/w32-win.el (dynamic-library-alist): Add libtree-sitter
DLLs.
* configure.ac (TREE_SITTER): Support the MinGW build.
(TREE_SITTER_OBJ): Remove.
This is easier to read and maintain, and makes the state explicit.
It is a pure refactoring; the compiled code should be equivalent.
* src/print.c (PRINTPREPARE, PRINTFINISH): Replace with...
(struct print_context, print_prepare, print_finish): ...these new
functions and explicit state in a struct.
(Fwrite_char, write_string, Fterpri, Fprin1, Fprin1_to_string)
(Fprinc, Fprint): Adapt callers.
* src/print.c (PRINTPREPARE): Bind the current buffer so that we
can retrieve it later.
(print_vectorlike): Use it (bug#56773).
(syms_of_print): New internal `print--unreadable-callback-buffer'
variable.
* src/character.h (str_to_multibyte):
* src/character.c (str_to_multibyte): Change signature and simplify;
the conversion is no longer done in-place.
* src/fns.c (string_to_multibyte): Drop temporary buffer and memcpy;
adapt to new str_to_multibyte signature.
* src/print.c (print_string): Drop memcpy; adapt call to str_to_multibyte.
* test/src/fns-tests.el (fns--string-to-unibyte): Rename to...
(fns--string-to-unibyte-multibyte): ... this and strengthen, so that
the test covers string-to-multibyte reasonably well.
* src/print.c (print_vectorlike): Use explicit cast of function
pointer to void *, to pacify Oracle Studio 12.6’s “warning:
assignment type mismatch: pointer to void "=" pointer to
function(pointer to void) returning void”. Admittedly this is
not strictly conforming C code even with the cast.
No intergration/interaction with the new type, just adding it.
* lisp/emacs-lisp/cl-preloaded.el (cl--typeof-types): Add new type.
* src/alloc.c (cleanup_vector): Add gc for the new type.
* src/data.c (Ftype_of): Add switch case for the new type.
(syms_of_data): Add symbols for the new type.
* src/lisp.h (DEFINE_GDB_SYMBOL_BEGIN): Add new type.
* src/treesit.c (Ftreesit_compiled_query_p): New function.
(syms_of_treesit): Add symbol for the new type.
* src/treesit.h (struct Lisp_TS_Query): New struct.
(TS_COMPILED_QUERY_P, XTS_COMPILED_QUERY, CHECK_TS_COMPILED_QUERY):
New macros.
* src/print.c (print_vectorlike): Add printing for the new type.
When printing a circular list and `print-circle` is nil, use a
somewhat more meaningful ". #N" tail index. The previous method for
calculating that index was based on Floyd circularity detection being
used so it had been broken ever since the change to Brent's algorithm.
The new index is correct with respect to the start of the list itself
which is what it used to be before being completely broken.
It does not take into account the nesting depth of the list context.
* src/print.c (struct print_stack_entry, print_object):
Keep track of the tortoise index (which is cheap) instead of trying
to derive it from the printed element index.
* test/src/print-tests.el (print-test-rho, print-circular):
New test.
* print.c (enum print_entry_type, struct print_stack_entry):
Clean up coding style.
(struct print_stack): Make print_stack_entry.list.idx intmax_t,
like it was before the nonrecursive printing was installed.
Also clarify what "Brent cycle detection" means in the comments.
Introduce explicit stacks for traversing common data types during
printing: conses, vectors, records, byte-code, hash-tables and
char-tables, all previously traversed using recursion in C. This
greatly reduces the risk of crashing Emacs from C stack overflow
when printing deeply nested data.
* src/print.c (Fprinc, print, PRINT_CIRCLE_CANDIDATE_P):
Special-case Fprinc with a plain string argument to eliminate the need
for keeping track of print_depth during the preprocessing phase.
This also improves performance.
(struct print_pp_entry, struct print_pp_stack, ppstack)
(grow_pp_stack, pp_stack_push_value, pp_stack_push_values)
(pp_stack_empty_p, pp_stack_pop):
New stack for preprocessing.
(print_preprocess):
Make mostly nonrecursive, except for string properties.
(enum print_entry_type, struct print_stack_entry)
(struct print_stack, prstack, grow_print_stack)
(print_stack_push, print_stack_push_vector):
New stack for printing.
(print_vectorlike, print_object):
Make mostly nonrecursive, except for string properties and some less
heavily used types.
* test/src/print-tests.el (print-deeply-nested):
New test.
* src/print.c: Don't expose Vprint_variable_mapping to the Lisp
world, because it really should be immutable.
(print_create_variable_mapping): Initialization moved here from
syms_of_print.
(print_bind_overrides): Call it.
(syms_of_print): Protect the mapping variable.
* configure.ac (HAVE_TREE_SITTER, TREE_SITTER_OBJ): New variables.
(DYNAMIC_LIB_SUFFIX): new variable, I copied code from MODULES_SUFFIX
so the diff looks this way.
* doc/lispref/elisp.texi (Top): Add tree-sitter manual.
* doc/lispref/modes.texi (Font Lock Mode): mention tree-sitter.
(Parser-based Font Lock): New section.
(Auto-Indentation): Mention tree-sitter.
(Parser-based Indentation): New section.
* doc/lispref/parsing.texi (Parsing Program Source): New chapter.
* lisp/emacs-lisp/cl-preloaded.el (cl--typeof-types): Add
treesit-parser and treesit-node type.
* lisp/treesit.el: New file.
* src/Makefile.in (TREE_SITTER_LIBS, TREE_SITTER_FLAGS,
TREE_SITTER_OBJ): New variables.
* src/alloc.c:
(cleanup_vector): Add cleanup code for treesit-parser and
treesit-node.
* src/casefiddle.c (casify_region): Notify tree-sitter parser of
buffer change.
* src/data.c (Ftype_of): Add treesit-parser and treesit-node type
(Qtreesit_parser, Qtreesit_node): New symbol.
* src/emacs.c (main): Add symbols in treesit.c.
* src/eval.c (define_error): Move the function to here.
* src/insdel.c (insert_1_both, insert_from_string_1, insert_from_gap,
insert_from_buffer_1, replace_range, del_range_2): Notify tree-sitter
parser of buffer change.
* src/json.c (define_error): Move this function out.
* src/lisp.h (DEFINE_GDB_SYMBOL_BEGIN): Add treesit-parser and
treesit-node.
* src/lread.c (Vdynamic_library_suffixes): New variable.
* src/print.c (print_vectorlike): Add code for printing
treesit-parser and treesit-node.
* src/treesit.c: New file.
* src/treesit.h: New file.
* test/src/treesit-tests.el: New file.
* src/print.c (print_vectorlike): Assign pointer-to-function
to void * before printing it with %p, as the C standard
doesn’t bless printing function pointers with %p.
Use the new number-to-string code to speed up fixnum printing, with
similar results (often more than twice as fast as before).
* src/data.c (Fnumber_to_string): Move fixnum conversion to...
(fixnum_to_string): ... this new function.
* src/lisp.h: (fixnum_to_string): External declaration.
* src/print.c (print_object): Use fixnum_to_string instead of sprintf.
