Version History

0.16.0#

Command line#

Additions

added -i or --instructions argument that prints the instructions (old behavior of -b)

Changes

now -b actually prints the bytecode and not the instructions

Nest#

Additions

added a new syntax for raw strings with backticks
added is_ascii, is_decimal and is_numeric to stdsutil.nest
added consume_int, parse_real and consume_real to stdsutil.nest

Changes

now su.repr escapes non-printable characters
now su.fmt escapes non printable characters when using r or R
renamed iter_get_val to iter_next in stditutil.nest
now numbers separators cannot be consecutive (1__0 is no longer a valid integer)
improved parse_int function in stdsutil.nest
now the Str to Real cast accepts a broader syntax for numbers (e.g. now 1 is valid)

Bug fixes

fixed expressions escapes in strings that would not close properly when the last character was -
fixed an infinite loop occurring when escaping a non-ASCII character in the source code
fixed su.lsplit and su.rsplit that would ignore separators at the end and at the beginning respectively
fixed file arguments (ex. --$ --no-default) not working
now multiplying a Vector by a negative number results in an error
fixed sequ.merge not working with sequences of different lenghts

C API#

Additions

added assembler.h which defines the following symbols
- Nst_Bytecode
- Nst_Op
- Nst_OpCode
- Nst_assemble
- Nst_bc_copy
- Nst_bc_destroy
- Nst_bc_print
added dyn_array.h which defines the following symbols
- Nst_DynArray
- Nst_PtrArray
- Nst_da_init
- Nst_da_init_copy
- Nst_da_reserve
- Nst_da_append
- Nst_da_pop
- Nst_da_remove_swap
- Nst_da_remove_shift
- Nst_da_get
- Nst_da_set
- Nst_da_clear
- Nst_pa_init
- Nst_pa_init_copy
- Nst_pa_reserve
- Nst_pa_append
- Nst_pa_pop
- Nst_pa_remove_swap
- Nst_pa_remove_shift
- Nst_pa_get
- Nst_pa_set
- Nst_pa_clear
added Nst_Span to error.h and the following functions along with it
- Nst_span_new
- Nst_span_from_pos
- Nst_span_empty
- Nst_span_join
- Nst_span_expand
- Nst_span_start
- Nst_span_end
added Nst_error_add_span to error.h
added Nst_iof_func_set, Nst_iof_fd and Nst_iof_fp to file.h
added the following functions to function.h
- Nst_func_args
- Nst_func_c_body
- Nst_func_nest_body
- Nst_func_mod_globals
- Nst_func_outer_vars
added Nst_IC_SEQ_CALL and Nst_IC_MAKE_FUNC in Nst_InstCode
added Nst_FuncPrototype in instructions.h
added Nst_fprototype_init and Nst_fprototype_destroy
added new functions to create and manage a Nst_InstList:
- Nst_ilist_init
- Nst_ilist_destroy
- Nst_ilist_add
- Nst_ilist_add_ex
- Nst_ilist_add_obj
- Nst_ilist_add_func
- Nst_ilist_get_inst
- Nst_ilist_get_obj
- Nst_ilist_get_func
- Nst_ilist_get_inst_obj
- Nst_ilist_get_inst_func
- Nst_ilist_set
- Nst_ilist_set_ex
- Nst_ilist_len
- Nst_ilist_print
added Nst_InterpreterState to interpreter.h
added Nst_coroutine_yield to interpreter.h
added Nst_state_span and Nst_state to interpreter.h
added the following functions to manage Iter objects:
- Nst_iter_start_func
- Nst_iter_next_func
- Nst_iter_value
added Nst_iter_range_new, Nst_iter_seq_new, Nst_iter_str_new and Nst_iter_map_new to iter.h
added Nst_obj_custom and Nst_obj_custom_ex macros with respective _Nst_obj_custom and _Nst_obj_custom_ex functions to lib_import.h
added Nst_import_lib to lib_import.h
added Nst_map_len and Nst_map_cap to map.h
added Nst_map_next and Nst_map_prev to map.h
added Nst_node_set_span to nodes.h
added program.h which defines the following symbols:
- Nst_Program
- Nst_ExecutionKind
- Nst_prog_init
- Nst_prog_destroy
added various new functions to sequence.h
- Nst_array_from_objs
- Nst_array_from_objsn
- Nst_vector_from_objs
- Nst_vector_from_objsn
- Nst_seq_len
- Nst_vector_cap
- Nst_seq_objs
- Nst_seq_setf
- Nst_seq_setn
- Nst_seq_setnf
- Nst_seq_getf
- Nst_seq_getn
- Nst_seq_getnf
added various new functions to simple_types.h
- Nst_int_i64
- Nst_real_f64
- Nst_real_f32
- Nst_byte_u8
added source_loader.h which defines the following symbols:
- Nst_source_load
- Nst_source_from_sv
- Nst_source_from_file
- Nst_source_text_destroy
added various new functions to str.h
- Nst_str_get_obj
- Nst_str_value
- Nst_str_len
- Nst_str_char_len
added str_builder.h which defines the following symbols:
- Nst_StrBuilder
- Nst_sb_init
- Nst_sb_destroy
- Nst_sb_reserve
- Nst_sb_push
- Nst_sb_push_str
- Nst_sb_push_c
- Nst_sb_push_cps
- Nst_sb_push_char
- Nst_str_from_sb
- Nst_sv_from_sb
added str_view.h which defines the following symbols:
- Nst_StrView
- Nst_sv_new
- Nst_sv_new_c
- Nst_sv_from_str
- Nst_sv_from_str_slice
- Nst_sv_next
- Nst_sv_prev
- Nst_SvNumFlags
- Nst_sv_parse_int
- Nst_sv_parse_byte
- Nst_sv_parse_real
- Nst_sv_compare
- Nst_sv_lfind
- Nst_sv_rfind
- Nst_sv_ltok
- Nst_sv_rtok
added Nst_tok_new and Nst_tok_invalid to tokens.h
added Nst_type_name and Nst_type_trav to type.h
added Nst_DBG_ASSERT_CALLBACK and Nst_DBG_KEEP_DYN_LIBS macros for debugging
added Nst_Destructor type alias
added unicode_db.h which defines the following symbols:
- Nst_UCD_MASK_UPPERCASE
- Nst_UCD_MASK_LOWERCASE
- Nst_UCD_MASK_CASED
- Nst_UCD_MASK_ALPHABETIC
- Nst_UCD_MASK_DECIMAL
- Nst_UCD_MASK_DIGIT
- Nst_UCD_MASK_NUMERIC
- Nst_UCD_MASK_XID_START
- Nst_UCD_MASK_XID_CONTINUE
- Nst_UCD_MASK_PRINTABLE
- Nst_UCD_MAX_CASE_EXPANSION
- Nst_UnicodeChInfo
- Nst_unicode_get_ch_info
- Nst_unicode_expand_case
- Nst_unicode_is_whitespace
- Nst_unicode_is_titlecase
added Nst_vt_init to var_table.h

Changes

added print_instructions field in Nst_CLArgs
renamed _Nst_clargs_parse to Nst_clargs_parse
now Nst_compile returns an Nst_InstList instead of an Nst_InstList *
now Nst_compile no longer destroys the AST
renamed Nst_CP_MULTIBYTE_MAX_SIZE to Nst_ENCODING_MULTIBYTE_MAX_SIZE
renamed Nst_CPID to Nst_EncodingID
- renamed all variants from Nst_CP_* to Nst_EID_*
renamed Nst_CP to Nst_Encoding
renamed Nst_translate_cp to Nst_encoding_translate
renamed Nst_check_string_cp to Nst_encoding_check
renamed Nst_string_char_len to Nst_encoding_char_len
renamed Nst_string_utf8_char_len to Nst_encoding_utf8_char_len
renamed Nst_cp to Nst_encoding
renamed Nst_is_valid_cp to Nst_cp_is_valid
renamed Nst_is_non_character to Nst_cp_is_non_character
renamed Nst_check_bom to Nst_encoding_from_bom
renamed Nst_detect_encoding to Nst_encoding_detect
renamed Nst_single_byte_cp to Nst_encoding_to_single_byte
renamed _Nst_EM_WRONG_ARG_NUM to _Nst_WRONG_ARG_NUM
moved Nst_SourceText from error.h to source_loader.h
renamed Nst_set_color to Nst_error_set_color
removed Nst_copy_pos
renamed Nst_no_pos to Nst_pos_empty
renamed Nst_tb_print to Nst_error_print
removed Nst_set_error, renamed _Nst_set_error to Nst_error_set
removed Nst_set_*_error macros, renamed _Nst_set_*_error functions to Nst_error_set_*
renamed Nst_set_*_errorf macros to Nst_error_setf_* and made them functions
renamed Nst_set_*_error_c functions to Nst_error_setc_*
removed all Nst_set_internal_* and Nst_set_internal_*_c functions
renamed Nst_failed_alloc to Nst_error_failed_alloc
removed Nst_error_add_pos in favour of Nst_error_add_span
removed IOFILE, FUNC, MAP, SEQ, ARRAY, VECTOR, ITER, TYPE, CONT_TYP, AS_INT, AS_BOOL, AS_BYTE and AS_REAL
made Nst_IOFileObj private
removed _Nst_iof_destroy
made Nst_FuncObj and Nst_FuncBody private
removed Nst_func_set_vt and _Nst_func_set_vt
removed Nst_func_new and _Nst_func_destroy
removed GGC_OBJ
made Nst_GarbageCollector private
removed Nst_ggc_collect_gen, _Nst_ggc_init and _Nst_ggc_delete_objs
renamed _Nst_ggc_obj_reachable to Nst_ggc_obj_reachable and removed macro alias
made Nst_IC_IS_JUMP a function called Nst_ic_is_jump
renamed Nst_IC_FOR_GET_VAL to Nst_IC_FOR_NEXT
split Nst_IC_ROT into Nst_IC_ROT_2 and Nst_IC_ROT_3
renamed Nst_InstID to Nst_InstCode
renamed id field in Nst_Inst to code
replaced start and end fields in Nst_Inst with span
removed val and renamed int_val to val in Nst_Inst
now Nst_InstList contains three Nst_DynArray fields called instructions, objects and functions
removed Nst_inst_new, _Nst_inst_new_val, Nst_inst_new_val and Nst_inst_new_int
removed Nst_IntrState
now Nst_init does not take any arguments
now Nst_run takes an Nst_Program instead of an Nst_FuncObj
now Nst_run_module only takes the file name of the module to run and returns an Nst_Obj
renamed Nst_run_paused_coroutine to Nst_coroutine_resume
removed Nst_state_set_es
removed Nst_current_inst
made Nst_IterObj private
renamed _Nst_iter_new to Nst_iter_new and remove macro alias
removed _Nst_iter_destroy
renamed _Nst_iter_start to Nst_iter_start and removed macro alias
renamed _Nst_iter_get_val to Nst_iter_next and removed macro alias
renamed Nst_iter_*_get_val functions to Nst_iter_*_nest
removed Nst_tokenizef, Nst_add_lines and Nst_normalize_encoding
now Nst_tokenize returns an Nst_DynArray
removed Nst_RETURN_TRUE, Nst_RETURN_FALSE, Nst_RETURN_NULL, Nst_RETURN_IEND, Nst_RETURN_ZERO, Nst_RETURN_ONE and Nst_IS_NULL from lib_import.h
renamed _Nst_get_import_path to Nst_import_full_lib_path and moved the function to lib_import.h
renamed Nst_get_full_path to Nst_abs_path and moved it to lib_import.h
removed Nst_llist_new and Nst_llist_destroy
made Nst_MapObj and Nst_MapNode private
renamed _Nst_map_copy to Nst_map_copy and removed macro alias
removed Nst_map_destroy
renamed _Nst_map_set to Nst_map_set and removed macro alias
renamed _Nst_map_get to Nst_map_get and removed macro alias
renamed _Nst_map_drop to Nst_map_drop and removed macro alias
renamed _Nst_map_set_str to Nst_map_set_str and removed macro alias
renamed _Nst_map_get_str to Nst_map_get_str and removed macro alias
renamed _Nst_map_drop_str to Nst_map_drop_str and removed macro alias
removed _Nst_map_get_next_idx and _Nst_map_get_prev_idx
removed Nst_SBuffer in favour of Nst_DynArray
- removed Nst_sbuffer_* functions
removed Nst_Buffer in favour of Nst_StrBuilder
- removed Nst_buffer_* functions
removed Nst_node_set_pos in favour of Nst_node_set_span
renamed OBJ to NstOBJ
renamed _Nst_inc_ref to Nst_inc_ref and removed macro alias
renamed _Nst_ninc_ref to Nst_ninc_ref and removed macro alias
renamed _Nst_dec_ref to Nst_dec_ref and removed macro alias
renamed _Nst_ndec_ref to Nst_ndec_ref and removed macro alias
renamed _Nst_ndec_ref to Nst_ndec_ref and removed macro alias
removed Nst_NullObj
removed _Nst_obj_free and _Nst_obj_destroy
renamed _Nst_obj_* operations in obj_ops.h to Nst_obj_* and removed macro aliases
renamed _Nst_repr_str_cast to Nst_obj_to_repr_str
removed _Nst_obj_str_cast_seq and _Nst_obj_str_cast_map
renamed Nst_optimize_bytecode to Nst_optimize_ilist
removed runner.h and the following symbols:
- Nst_ExecutionState
- Nst_es_init
- Nst_es_destroy
- Nst_func_call_from_es
- Nst_es_init_vt
- Nst_execute
- Nst_es_set_cwd
- Nst_es_push_module
- Nst_es_push_func
- Nst_es_push_paused_coroutine
- Nst_es_force_function_end
renamed _Nst_fstack_push to Nst_fstack_push and removed macro alias
renamed _Nst_vstack_push to Nst_vstack_push and removed macro alias
removed cwd from Nst_FuncCall and replaced start and end with span
renamed inst_idx field of Nst_CatchFrame to idx
removed Nst_GenericStack
- removed Nst_stack_init, Nst_stack_expand and Nst_stack_shrink
made Nst_SeqObj private, removed Nst_ArrayObj and Nst_VectorObj
renamed _Nst_seq_set to Nst_seq_set and removed macro alias
renamed _Nst_seq_get to Nst_seq_get and removed macro alias
removed _Nst_vector_resize
renamed _Nst_vector_append to Nst_vector_append and removed macro alias
renamed _Nst_vector_remove to Nst_vector_remove and removed macro alias
renamed _Nst_vector_pop to Nst_vector_pop and removed macro alias
made Nst_IntObj, Nst_RealObj, Nst_BoolObj and Nst_ByteObj private
renamed _Nst_number_to_* functions in simple_types.h to Nst_number_to_* and removed macro aliases
renamed _Nst_obj_to_bool to Nst_obj_to_bool and removed macro alias
moved Nst_SourceText from error.h to source_loader.h
made Nst_StrObj private
removed TYPE_NAME, Nst_TYPE_STR and Nst_STR_IS_ALLOC macros
removed Nst_str_temp
removed _Nst_str_destroy
renamed _Nst_str_copy to Nst_str_copy and removed macro alias
renamed _Nst_str_repr to Nst_str_repr and removed macro alias
renamed _Nst_str_get to Nst_str_get and removed macro alias
now Nst_str_get returns the Unicode code point instead of an object, use the new Nst_str_get_obj for the old behavior
removed Nst_str_new_c_raw
now Nst_str_new_c only takes one argument and the string is always assumed to be static
removed Nst_TOK, Nst_tok_new_value, Nst_tok_new_noval, Nst_tok_new_noend
made Nst_TypeObj private, removed Nst_ContTypeObj
removed Nst_TypeFlags and _Nst_type_destroy
renamed Nst_TRACK_OBJ_INIT_POS to Nst_DBG_TRACK_OBJ_INIT_POS
renamed Nst_DISABLE_POOLS to Nst_DBG_DISABLE_POOLS
renamed Nst_COUNT_ALLOC to Nst_DBG_COUNT_ALLOC
removed Nst_BREAKPOINT_ON_ASSERTION_FAIL in favour of Nst_DBG_ASSERT_CALLBACK
now integer types (i8, i32, ...) use the types from <inttypes.h>
moved Nst_obj from obj.h to typedefs.h
removed Nst_vt_new and Nst_vt_from_func from var_table.h
renamed _Nst_vt_get to Nst_vt_get and removed macro alias
renamed _Nst_vt_set to Nst_vt_set and removed macro alias
renamed node types to have clearer names

Bug fixes

now when building on linux the files are correctly rebuilt when header files change
fixed Nst_CLEAR_FLAGS not keeping reserved flags intact

0.15.0#

Nest can now be compiled with clang! Check make help for more info.

Nest#

Additions

added is_space, lremove, rremove and rsplit to stdsutil.nest
added del_env and get_capacity to stdsys.nest
added enum to stdsequtil.nest
added batch and batch_padded to stditutil.nest
added std.nest, a file that imports all the standard library available under standard import names (e.g. std.io.println)
added set_option, get_option, clear_options and OPTION to stdjson.nest
added _debug_ and _debug_arch_ predefined variables when compiling in debug mode, _debug_ is set to true and _debug_arch_ is set to x64 on 64-bit platforms and x86 on 32-bit ones
added reverse and reverse_i to stdsequtil.nest
added rsplit to stdsutil.nest
added fmt to stdsutil.nest to format values
added encoding_info to stdcodecs.nest
merged get_fpi and move_fpi into seek
added time_creation, time_last_access and time_last_write to stdfs.nest
added path.stem to stdfs.nest

Changes

now line endings will be ignored when the expression should not end, this includes the following cases:
- the condition of while and do-while loops
- the number of repeats in for loops
- the iterator in for-as loops
- the expression and the cases in switch statements
- expressions inside parenthesis
- inside maps, vectors and arrays
- when a line ends with a local-stack operator
changed the file object to string cast from <IOFile ----- > to <IOFile[-----]>
renamed putenv in stdsys.nest to set_env and added an optional argument overwrite
renamed getenv in stdsys.nest to get_env
now relative_path in stdfs.nest will use the current working directory if no base is given
renamed pause to yield in stdco.nest
now the args argument of co.call is returned by co.yield when the function resumes
now co.generator accepts a second argument which is the arguments to use when calling the function
now err.try will accept fewer arguments than the function requires
removed get_options, set_options and OPTIONS in stdjson.nest
renamed _get_cwd and _set_cwd to get_cwd and set_cwd in stdsys.nest
removed reversed from stditutil.nest
improved execution times and output printing
now when pressing Ctrl-C an error is thrown rather than the process exiting, this error cannot be caught with a normal try-catch statement but err.try is needed
renamed su.split to su.lsplit
reverted the merging of su.ljust and su.rjust into su.justify, now they are again two separate functions
renamed su.center to su.cjust
now when a string is not closed only the end is highlighted rather than the whole string
now the second argument of itu.repeat is optional and it will repeat infinitely if not given, it would repeat infinitely even if the number was negative even if it was not specified in the documentation
added timestamp argument to many stdtime.nest functions
renamed hours, minutes and seconds to hour, minute and second
reorganized extension, filename, join, normalize and parent_path to be inside path in stdfs.nest
removed remove_dir, remove_dirs and remove_file in favor of remove and remove_all

Bug fixes

fixed a crash that occurred when casting a IOFile object to a Str
fixed a crash that occurred when using co.pause inside an expression
now months are counted from 1 in stdtime.nest
fixed an infinite loop when trying to optimize changed jumps
fixed su.lfind and su.rfind that did not work with non-ASCII characters
fixed su.center causing a crash with a negative width
fixed su.trim, su.ltrim and su.rtrim not working with NUL characters
fixed su.is_title returning an incorrect value when a word had a character that was not a space or a letter before it
fixed itu.cycle not working with Unicode strings
fixed itu.chain not resetting correctly after being iterated over the first time
fixed many memory leaks
fixed cp-1251, utf32, latin1 encodings not working properly
fixed utf32 encoding name
fixed encoding on utf16, utf16le and utf16be for U+FFFF
fixed various bugs with virtual files
now io.get_flags, io.can_read, io.can_write, io.is_bin, io.can_seek and io.is_a_tty will throw an error if the file is closed
now fs.path.normalize will no longer normalize \\?\ at the beginning of a path
now fs.path.join will not add a slash if the first path is an empty string
fixed Real and Int to Byte casts not working properly

C API#

Additions

added Nst_ErrorKind enum
added Nst_error_add_positions to add a pair of positions to a traceback
added Nst_IntrState struct
added Nst_gstate_get_es and Nst_state_set_es
added runner.h along with the following functions:
- Nst_es_init
- Nst_es_destroy
- Nst_es_init_vt
- Nst_execute
- Nst_es_set_cwd
- Nst_es_push_module
- Nst_es_push_func
- Nst_es_push_paused_coroutine
- Nst_es_force_function_end
added Nst_cl_args_init
added _Nst_override_supports_color
added _Nst_EM_WRONG_ARG_NUM_FMT macro to format correctly wrong argument numbers
added Nst_init, Nst_quit and Nst_was_init
added Nst_assert and Nst_assert_c to make assertions
added Nst_string_char_len and Nst_string_utf8_char_len
added Nst_inst_list_new
new parser, added many new node-related elements
- Nst_SeqNodeType, Nst_NodeData_Ac, Nst_NodeData_As, Nst_NodeData_Ca, Nst_NodeData_Cs, Nst_NodeData_Ex, Nst_NodeData_Fd, Nst_NodeData_Fl, Nst_NodeData_Ie, Nst_NodeData_Lo, Nst_NodeData_Ls, Nst_NodeData_Ml, Nst_NodeData_Rt, Nst_NodeData_Sl, Nst_NodeData_So, Nst_NodeData_Sw, Nst_NodeData_Tc, Nst_NodeData_Vl, Nst_NodeData_We, Nst_NodeData_Wl, Nst_NodeData_Ws
- _Nst_node_ac_destroy, _Nst_node_ac_init, _Nst_node_as_destroy, _Nst_node_as_init, _Nst_node_ca_destroy, _Nst_node_ca_init, _Nst_node_cs_destroy, _Nst_node_cs_init, _Nst_node_ex_destroy, _Nst_node_ex_init, _Nst_node_fd_destroy, _Nst_node_fd_init, _Nst_node_fl_destroy, _Nst_node_fl_init, _Nst_node_ie_destroy, _Nst_node_ie_init, _Nst_node_lo_destroy, _Nst_node_lo_init, _Nst_node_ls_destroy, _Nst_node_ls_init, _Nst_node_ml_destroy, _Nst_node_ml_init, _Nst_node_rt_destroy, _Nst_node_rt_init, _Nst_node_sl_destroy, _Nst_node_sl_init, _Nst_node_so_destroy, _Nst_node_so_init, _Nst_node_sw_destroy, _Nst_node_sw_init, _Nst_node_tc_destroy, _Nst_node_tc_init, _Nst_node_vl_destroy, _Nst_node_vl_init, _Nst_node_we_destroy, _Nst_node_we_init, _Nst_node_wl_destroy, _Nst_node_wl_init, _Nst_node_ws_destroy, _Nst_node_ws_init
- Nst_print_node
added Nst_sbuffer_at, Nst_sbuffer_pop and Nst_sbuffer_shrink_auto
added Nst_VERSION_MAJOR, Nst_VERSION_MINOR and Nst_VERSION_PATCH definitions
added Nst_DECLR_END
added Nst_ConstFunc
added Nst_memset
added Nst_fmt, Nst_vfmt and Nst_fmt_objs
added Nst_MSVC, Nst_GCC and Nst_CLANG

Changes

New program execution system:

Programs have been decoupled from the interpreter. Now any program can be executed by setting the es field (of type Nst_ExecutionState) of the global Nst_IntrState. All the information needed to execute a program is saved in the Nst_ExecutionState struct and this can be swapped into the interpreter when no recursive calls are active and it allows to execute a completely different program where it was left off.

New error handling system:

Previously errors were handled in a very messy way. There was Nst_Error which was used internally, Nst_OpErr which was used by libraries and Nst_Traceback which was used during execution. Now interpreter and program execution are separate and because of this the interpreter state can be initialized well before anything is executed on it. This removes the need for Nst_Error and Nst_OpErr which are replaced in the new Nst_ExecutionState and Nst_IntrState by a Nst_Traceback field that contains all the information needed.

General changes:

removed error parameter from Nst_compile
removed Nst_Error and Nst_OpErr structs
replaced the error field in Nst_Traceback with error_occurred, error_name and error_msg
removed Nst_print_error
changed Nst_print_traceback to take a pointer instead of a plain traceback
changed Nst_error_occurred to return a Nst_ErrorKind instead of a bool
changed Nst_error_get to return a Nst_Traceback instead of a Nst_OpErr
changed all Nst_set_internal_* functions to get a Nst_Traceback instead of a Nst_Error for the first argument
removed Nst_set_internal_error_from_op_err
changed Nst_get_state to return Nst_IntrState
changed Nst_ExecutionState to now only contain information about the running program
removed error argument from Nst_tokenizef, Nst_tokenize and Nst_normalize_encoding
removed error argument from Nst_optimize_ast and Nst_optimize_bytecode
removed error argument from Nst_parse
renamed Nst_ggc_init to _Nst_ggc_init
added v_stack argument to
- Nst_vstack_init
- Nst_vstack_push
- _Nst_vstack_push
- Nst_vstack_pop
- Nst_vstack_peek
- Nst_vstack_dup
- Nst_vstack_destroy
added f_stack argument to
- Nst_fstack_init
- Nst_fstack_push
- Nst_fstack_pop
- Nst_fstack_peek
- Nst_fstack_destroy
combined func, call_start, call_end, vt, idx and cstack_size arguments of Nst_fstack_push into call
added c_stack argument to
- Nst_cstack_init
- Nst_cstack_push
- Nst_cstack_peek
- Nst_cstack_pop
- Nst_cstack_destroy
combined inst_idx, v_stack_size and f_stack_size arguments of Nst_cstack_push into frame
renamed Nst_ggc_delete_objs to _Nst_ggc_delete_objs
removed _Nst_unload_libs
removed argc and argv arguments from _Nst_parse_args
added arg_num argument to Nst_call_func
renamed Nst_run_func_context to Nst_run_paused_coroutine and modified its arguments
removed Nst_state_init and Nst_state_free
renamed Nst_ENDIANNESS to Nst_BYTEORDER
renamed Nst_IC_NEW_OBJ to Nst_IC_NEW_INT
replaced Nst_IC_FOR_IS_DONE with Nst_IC_JUMPIF_IEND
removed Nst_print_ast
renamed Nst_RETURN_COND to Nst_RETURN_BOOL
removed Nst_FUNC_SIGN and Nst_DEF_EXTRACT
removed get_func_ptrs from libraries, now lib_init returns the function pointers
removed Nst_DeclrList and renamed Nst_ObjDeclr to Nst_Declr
renamed Nst_MAKE_FUNCDECLR to Nst_FUNCDECLR
renamed Nst_MAKE_NAMED_FUNCDECLR to Nst_NAMED_FUNCDECLR
renamed Nst_MAKE_OBJDECLR to Nst_CONSTDECLR
renamed Nst_MAKE_NAMED_OBJDECLR to Nst_NAMED_CONSTDECLR
renamed many functions to better fit the naming style:
- _Nst_parse_args to _Nst_cl_args_parse
- _Nst_override_supports_color to _Nst_supports_color_override
- _Nst_set_console_mode to _Nst_console_mode_init
- Nst_print_bytecode to Nst_inst_list_print
- _Nst_init_objects to _Nst_globals_init
- _Nst_del_objects to _Nst_globals_quit
- _Nst_call_func to _Nst_func_call
- _Nst_get_state to _Nst_state_get
- all Nst_string_* to Nst_str_*
macros to check token type ranges have been made private
removed Nst_WIN in favor of Nst_MSVC
renamed Nst_GNU_FMT to Nst_NIX_FMT since it is used with clang too
renamed true_len field in strings to char_len

Bug fixes

fixed Nst_obj_eq_c and Nst_obj_ne_c leaving a dangling reference of the resulting boolean object
fixed type objects not being freed properly
fixed many constants not being destroyed at the end of the program
fixed a possible read-after-free bug in the garbage collector
now the standard library is imported when running Nest on Windows in x86 debug mode
fixed the value store in ill_encoded_byte retrieved with Nst_io_result_get_details
fixed Nst_str_copy that swapped true_len and len

0.14.0#

Nest#

Additions

added IEND constant to stditutil.nest
added map_i, slice_i, filter_i, extend, copy and deep_copy to stdsequtil.nest
added is_nan and is_inf functions to stdmath.nest
added inf_and_nan option to stdjson.nest to allow for NaN and Infinity to be treated as numeric literals
added is_inf and is_nan functions to stdmath.nest
added the 'contains' stack operator <.> to check if an object is inside another
added read_symlink function to stdfs.nest
added gmt_date to stdtime.nest

Changes

now itu.new_iterator takes three arguments instead of four
now itu.repeat will repeat forever if count is negative
now itu.cycle will also accept Iter objects
removed iter_is_done from stditutil.nest
now the iterator of a for-as loop is implicitly casted to Iter
now \U in strings will only accept 6 hex characters instead of 8, since U+10FFFF is the highest codepoint accepted
now string length and indexing will match the characters and not the bytes (e.g. 'àèì'.1 now is 'è' and before was '\xa0')
- removed to_iter, get_len and get_at from stdcodecs.nest since they are no longer needed
removed ljust and rjust from stdsutil.nest in favour of justify
- with justify a positive length means justify left and a negative one means justify right
now su.repr will display in \xhh, \uhhhh or \Uhhhhhh unprintable characters (control characters, non-characters, surrogates)
added an argument to sequ.map, sequ.sort and rand.shuffle to specify whether the sequence should be modified in-place or a new one should be created
added an argument to json.load_f and json.dump_f to specify the encoding of the file
renamed allow_comments and allow_trailing_commas in json.OPTIONS to comments and trailing_commas respectively
removed contains from stdsequtil.nest in favour of the new stack operator
added from and to arguments to lfind and rfind in stdsutil.nest
now casting a nan or inf value to an Int or Byte will throw an error

Bug fixes

reworked the garbage collector to work more reliably and remove many types of crashes
fixed error printing sometimes adding an empty line after a fully red one
fixed incorrect behaviour of sequ.slice on some occasions
fixed a crash that occurred when an error was thrown inside a function in sequ.rscan
fixed json.load_f and json.dump_f not working correctly with UTF-8 file names on Windows
fixed Nest not finding files with non-ASCII characters (both command-line and libraries) on Windows
fixed su.is_charset returning an incorrect result on some non-ASCII strings (e.g. 'à' 'èĠ' @su.is_charset now returns false, before it would return true)
fixed io.println not printing the full string if it contained a NUL character
fixed some errors passing silently through io.println
fixed inf and nan values not being casted correctly to strings
fixed a bug where any byte using a hexadecimal literal would be interpreted as zero
fixed CP-1250 encoding not working
fixed join in stdsutil.nest causing a Memory Error if the passed sequence was empty
fixed rtrim and trim in stdsutil.nest that if used could later cause crashes
fixed iterating through strings and creating sequences from strings that contain Unicode characters which would create invalid strings
fixed many inconsistencies between the documentation and the functions in the standard library
fixed < and > sometimes not working correctly with non-ASCII characters
fixed octal escapes higher than \177 not working and possibly causing a crash
fixed error printing causing a crash when non-ASCII character were present on the line being printed

C API#

Additions

added p_next field to Nst_Obj
added object pools to improve performance
added _Nst_obj_free to free an object's memory or add it to its type's pool
added Nst_TYPE_STR to get the string of a type object
added CONT_TYPE and Nst_ContType for types of containers
added IEnd field to Nst_TypeObjs and IEnd_iend to Nst_Consts
added c_inf, c_nan, c_neginf and c_negnan to Nst_StrConsts
added Nst_true_ref, Nst_false_ref, Nst_null_ref, Nst_iend and Nst_iend_ref to global_consts.h
added Nst_FLAG macro to create the value of the flag of an object
added indexable_str and true_len fields to Nst_StrObj.
added Nst_string_new_len to create strings with a known character length
added Nst_string_get_next_ch to iterate over a string's characters without generating the indexable_str field
added Nst_FLAG_STR_IS_ASCII, Nst_FLAG_STR_INDEX_16, Nst_FLAG_STR_INDEX_32 and Nst_FLAG_STR_CAN_INDEX variants to Nst_StrFlags
added Nst_seq_copy and _Nst_seq_copy to create a shallow copy of sequences
added Nst_map_copy and _Nst_map_copy to create a shallow copy of a map
added Nst_fopen_unicode to open files from UTF-8 strings on all platforms
added Nst_single_byte_cp to always get a single-byte encoding
added Nst_NestCallable type as the type of C functions callable from Nest
added Nst_sbuffer_copy and Nst_buffer_copy to copy the contents of buffers
added Nst_buffer_append_str to append a string of known length to a buffer
added Nst_obj_contains and _Nst_obj_contains to implement the <.> operator
added Nst_TT_CONTAINS token type
added Nst_string_rfind to find a substring from the right
added Nst_CLEAR_FLAGS macro to remove all non-reserved flags from a macro

Changes

now Nst_TypeObj is no longer an alias of Nst_StrObj and contains the pool for the type and the destructor
moved the traverse_func parameter from the object to its type
moved the destructor parameter from the object to its type
removed destructor argument from _Nst_obj_alloc and Nst_obj_alloc
changed _Nst_obj_destroy to only call the destructor, and not free the memory
removed Nst_obj_destroy and kept only _Nst_obj_destroy
removed ggc_next from Nst_GGCObj, instead the new p_next is used
renamed ggc_prev to p_prev in Nst_GGCObj
removed t_* from Nst_StrConsts
removed is_done field from Nst_IterObj
removed Nst_iter_is_done and _Nst_iter_is_done
removed is_done argument from Nst_iter_new
removed Nst_iter_range_is_done, Nst_iter_seq_is_done, Nst_iter_str_is_done and Nst_iter_map_is_done
now type shorthands for Nst_extract_arg_values that are part of type unions will not cast the object automatically
renamed _Nst_string_get_next_ch and Nst_string_get_next_ch to _Nst_string_next_ch and Nst_string_next_ch respectively
optimized exponentiation
rename _Nst_VECTOR_MIN_SIZE to _Nst_VECTOR_MIN_CAP

Bug fixes

fixed Nst_is_non_character returning true on some valid characters
fixed Nst_extract_arg_values sometimes trying to cast an invalid value
fixed Nst_extract_arg_values crashing when deleting any allocated objects if an error occurred
fixed Nst_encoding_from_name failing to identify valid encoding names
fixed some bugs with UTF-16 and its variants not working properly
added some missing documentation for _Nst_VECTOR_MIN_CAP, _Nst_VECTOR_GROWTH_RATIO, SEQ, ARRAY and VECTOR
fixed Nst_string_compare not working with non-ASCII characters

0.13.2#

Nest#

Bug fixes

fixed input

C API#

Bug fixes

fixed Nst_sbuffer_expand_to expanding the buffer when not necessary

0.13.1#

Nest#

Bug fixes

fixed slice in stdsequtil.nest that could cause a crash if an Array or Vector was passed

0.13.0#

Command-line arguments#

removed --cp1252 in favour of --encoding

Nest#

Additions

added ENDIANNESS constant and putenv function to stdsys.nest
added new_iterator to stditutils.nest
added descriptor, encoding, is_a_tty, is_bin, can_read, can_write and can_seek to stdio.nest
added string expressions

Changes

the stdutf8.nest library has been replaced by the stdcodecs.nest library
added encoding argument to str_to_bytearray and bytearray_to_str
added encoding and buf_size arguments to open
optimized interpreter
now strings are encoded with UTF-8
now casting Map to Iter will iterate over the map's items and not create a new iterator
added map_func argument to sequ.sort

Bug fixes

fixed many memory leaks
fixed CP1252 encoding being decoded incorrectly
fixed a crash that could occur when returning inside a try-catch block
fixed a crash that could occur when the last statement of a while loop was ..
fixed some nodes and instructions missing the position

C API#

Additions

added many new encodings
added Nst_SizedBuffer
added file.h and removed Nst_IOFile logic from simple_types.h
added functions to set the global error and to check it
added the option to track the position where an object was initialized
added a help rule in makefiles

Changes

now functions and macros begin with Nst_ instead of nst_ and NST_ respectively
now the operation error is no longer an argument and is instead set globally
removed error and internal error macros
removed Nst_Int, Nst_Real, Nst_Byte and Nst_Bool; use i64, f64, u8 and bool instead
now all exported symbols are documented in the headers
improved the functionality of Nst_extract_arg_values

Bug fixes

fixed inconsistent behaviour of Nst_extract_arg_values

Tools

updated mkclib.nest to work with the new names and error propagation
added generate_docs.nest to generate Markdown documentation from the headers

0.12.1#

Nest#

Additions

added an experimental and undocumented library _stdgui.nest that only has text labels, it will be gradually getting more features
added many functions to stdfs.nest
- exists
- is_block_device
- is_char_device
- is_named_pipe
- is_socket
- is_symlink
- make_dir_symlink
- make_file_symlink
- make_hard_link
- normalize

Changes

now <<< supports Unicode characters on Windows
renamed log to ln in stdmath.nest
renamed logn to log in stdmath.nest, the base argument is now optional and defaults to 10
removed log2 and log10
added a fourth argument to enumerate in stdsutil.nest to invert the order of the index and item in the array
now any functions that expect a Bool object as one of the arguments will accept any object that is then casted to a boolean
the C ABI became the C API

Bug fixes

fixed many links in the documentation
fixed step argument of enumerate in stditutil.nest
fixed do-while loops getting compiled like normal while loops
fixed some casts from Str to Int and Byte being considered valid when they weren't and vice versa
fixed count in stdsequtil.nest that could cause undefined behaviour
fixed <<< having a weird behaviour
fixed many functions in stdfs.nest, stdsys.nest and stdio.nest not supporting unicode strings on Windows

C API#

Additions

added nst_vector_create, nst_array_create, nst_vector_create_c and nst_array_create_c to sequence.h
added NST_UNSET_ERROR to lib_import.h
added nst_number_to_u8, nst_number_to_int, nst_number_to_i32, nst_number_to_i64, nst_number_to_f32, nst_number_to_f64 and nst_obj_to_bool to simple_types.h
added many functions to encoding.h:
- nst_check_ascii_bytes
- nst_ascii_to_utf32
- nst_ascii_from_utf32
- nst_utf8_to_utf32
- nst_utf8_from_utf32
- nst_utf16_to_utf32
- nst_utf16_from_utf32
- nst_check_utf32_bytes
- nst_utf32_to_utf32
- nst_utf32_from_utf32
- nst_check_1252_bytes
- nst_1252_to_utf32
- nst_1252_from_utf32
- nst_translate_cp
- nst_cp
- nst_char_to_wchar_t
- nst_wchar_t_to_char

Changes

removed err argument from nst_map_get_str and nst_map_drop_str
added err argument to nst_map_set and _nst_map_resize
now _nst_vector_resize and nst_vector_append return bool

Bug fixes

now nst_iter_new and nst_tok_new_value never leave dangling references if the memory allocation fails
now nst_get_full_path always sets err on failure
now strings that contain a NUL byte are fully hashed

0.12.0#

Nest#

Additions

added sleep_ms, monotonic_time and monotonic_time_ns to stdtime.nest
added lscan and rscan to stdsequtil.nest
added icons to the installer and the executable on Windows
added the _raw_exit function to stdsys.cnest, it cannot be accessed by importing stdsys.nest
added SUPPORTS_COLOR to stdsys.nest

Changes

now command-line arguments can contain Unicode characters on Windows
now the UTF-8 with BOM encoding is supported
now >>> will not flush stdout each time
improved memory usage when importing C libraries
modified the behaviour of sys.exit that now throws an error that will be ignored by try-catch blocks but can be caught with err.try
added a third optional argument to err.try that when set to true catches sys.exit
changed many function names in stdfs.nest to better fit the naming convention or to make them clearer
- isdir → is_dir
- mkdir → make_dir
- mkdirs → make_dirs
- rmdir → remove_dir
- rmdir_recursive → remove_dirs
- isfile → is_file
- rmfile → remove_file
- list_dir_recursive → list_dirs
- path → parent_path
renamed virtual_iof to virtual_file in stdio.nest
now open in stdio.nest permits omitting the second parameter
now Byte objects support ~ and -:
now binary libraries end with .cnest instead of .dll or .so to allow cross-platform importing
inverted order of coroutine and args in co.call
the documentation is now hosted on ReadTheDocs
now the functions in stdfs.nest will throw a system error if something fails
now count in stdsequtil.nest will count any non-overlapping substring if both arguments are strings

Bug Fixes

fixed many bugs and crashes in stdjson.nest
fixed many memory leaks
now all memory allocations refer to the main process
fixed dt.year returning the years passed from 1900 instead of the current year (it would return 123 instead of 2023)
fixed sys.exit causing a segmentation fault
fixed possible crash when catching a circular import error
now failed memory allocations are correctly handled
now deeply nested structures will not crash the parser
fixed general object to Str cast on Linux not displaying the address correctly, now it is the same as Windows
fixed a crash with sequ.slice when the resulting slice would have a negative size
now colors work properly on Windows consoles that require the activation of ANSI escapes
fixed arguments on Windows not being decoded correctly
fixed error message for using % with incompatible types

0.11.2#

Nest#

Additions

added to_title and is_title to stdsutil.nest
added count to stdsequtil.nest
added println to stdio.nest

Changes

now identifiers can contain unicode characters (💻 can be used as a variable name)
now contains in stdsequtil.nest also accepts two strings as an input
now $ accepts also a function and returns the maximum number of arguments it takes (>>> $(## []) prints 0)
now virtual_iof accepts an optional second argument that specifies the size of the buffer

Bug Fixes

fixed a crash happening when a lambda was not used and the optimization level was above 1
fixed a crash happening when calling a C function that expected at least one argument but was given none
fixed many issues reguarding the Str to Byte cast
fixed the error message for -: writing '-' instead of '-:'
now errors that contain unicode characters will have the correct number of spaces and carets
fixed number positions only including the first character (again)
fixed -//- that would not close correctly the multiline comment

0.11.1#

Nest#

Changes

removed _advance_ from iterators and made them around 15% faster
improved itu.chain to take iterators and strings

0.11.0#

Nest#

Additions

added \u and \U string escapes
added the stdutf8.nest library
added parse_int to stdsutil.nest

Changes

improved Str to Int, Str to Real and Str to Byte casts to support underscores and non-decimal literals
now string representations will use \e instead of \x1b and non-control UTF-8 characters are recognized and remain untouched

Bug Fixes

fixed a crash that occurred when getting the value of an ended string iterator

0.10.0#

Nest#

Additions

added bin, oct and hex to stdsutil.nest to have the binary, octal and hexadecimal representation of integers respectively
added center to stdsutil.nest
added _get_cwd and _set_cwd to stdsys.nest
added the stdjson.nest module that can load and dump json data

Changes

from now on the documentation will be packaged into the release to always keep correct information
now co.call accepts null for the first argument and behaves like passing an empty array
modified many functions of the standard library to take optional arguments
now if you call a function with less arguments than expected the remaining ones are filled with null values
now the CP1252 encoding is officially supported along with UTF-8 and ASCII
now Real to Str will add .0 if the number does not contain a dot or is not in scientific notation (Str :: 1.0 now is '1.0' where before it was '1')

Bug Fixes

fixed co.call resulting in undefined behaviour when not passing a sequence as the first argument
now coroutines are correctly set as ended when an error occurs inside the coroutine
fixed Func to Str cast using 'vars' instead of 'var' when the function only accepted one argument
fixed error printing when a file that had its new lines changed from CRLF to LF and an error occurred on the last line
fixed repr of strings containing unprintable characters being incorrect and possibly causing crashes

0.9.2#

Nest#

Changes

now && and || work consistently always returning either the first false element (for &&) or the first true element (for ||)
```
0 10 || --> 10
0 10 && --> 0
```
added a custom syntax to create an empty array: {,}, changed the string cast of an empty array to {,}

Bug Fixes

fixed the end position of value tokens containing a Real
fixed many crashes reguarding coroutines

0.9.1#

Nest#

Changes

improved many casts to Str:
- IOFiles now show their flags
- arrays, vectors and maps, when empty no longer have a space between the opening and closing brackets ({ } becomes {})
- recursive vector references now use <{.}> instead of {.}
- if the object does not have a custom cast, it now shows its address in memory (Str :: (0 -> 10) can return <Iter object at 0x00000206A188B8D0>)
- now functions show their number of arguments (Str :: (## a b []) returns <Func 2 args>)
improved import speed when importing a large number of modules and libraries

Bug Fixes

fixed a crash or incorrect behaviour when comparing two almost identical strings where one has an extra \0 character at the end
fixed a crash when passing an empty sequence to min_seq or max_seq in stdmath.nest

0.9.0#

Nest#

Changes

added generator to stdco.nest
added virtual_iof, get_flags, _set_stdin, _set_stdout and _set_stderr to stdio.nest, now stdin, stdout and stderr can be redirected to other files
now => no longer requires an expression after it, instead it will return null
now casting an IOFile to a Bool will return true if the file is open and false otherwise
now negative steps in sequ.slice are allowed and do not just return an empty sequence
removed from_iter from stdsequtil.nest as it can be replaced with a cast to a vector
now functions can be written like lambdas, with a signle expression, and lambdas can be written with a block:
```
#add a b => a b +

##a b [
    >>> (a ' + ' b '\n' ><)
    => a b +
] = add_with_print
```
now error messages will always show the full path to the file
added the following type casts:
- Map to Vector
- Map to Array
- Array to Map
- Vector to Map
- Iter to Vector
- Iter to Array
- Iter to Map
- Real to Byte

Bug Fixes

fixed a crash that occurred when calling a coroutine while it was running, now an error is thrown instead
fixed rb+, r+b, wb+, w+b, ab+ and a+b in io.open being considered invalid file modes
fixed a crash caused by shrink_stack not allocating enough memory
fixed a crash caused by having a step of 0 in sequ.slice
fixed an infinite loop that could occur when a switch statement of an imported file was not closed properly and then a file with a continue statement outside a loop was imported

0.8.0#

Nest#

Changes

added Linux support!
added the unpacking assignment that can be written with curly braces: { 1, 2 } = { a, b }, it also works in for-as loops
added the sequence call operator (*@) that allows you to call a function passing the arguments as a sequence
renamed rand_seed to seed in stdrand.nest
added canonical_path, relative_path, join, path, filename and extension functions to stdfs.nest
added hypot to stdmath.nest

Bug Fixes

comparison operators no longer execute more than once each expression, the following code now prints Called only once where before it would be printed twice:
```
#f [
    >>> 'Called\n'
    => 2
]

1 @@f 3 <
```
now all line endings (\n, \r\n or \r) are parsed correctly

0.7.3#

Nest#

Changes

added gcd, lcm, gcd_seq, lcm_seq and abs to stdmath.nest
the keys in the map returned by clock_time and gmt_clock_time now are hour, minute and second instead of hours, minutes and seconds
now runtime stacks (value stack, call stack and catch stack) shrink when they are small enough, before they could only grow

Bug Fixes

now the process ends with exit code 1 when an error occurs
now -O3 will not optimize built-in constants if they are repurpused in any scope or if they might be changed through _vars_ or _globals_, now the code will not change its behaviour if you have this enabled The following code before would have given different results depending on the optimization level, now everyghing is coherent:
```
'true' = a
false = _vars_.(a)
>>> true
```
when vectors are shrinked the program no longer crashes

0.7.2#

Nest#

Changes

now random numbers are generated in the range [-2^63, 2^63) using the Mersenne Twister algorithm, because of this RAND_MAX has been removed from stdrand.nest

Bug Fixes

fixed 0o being read as 0b, now a syntax error is correctly thrown
fixed hexadecimal literals skipping the next character in the code while lexing (0 = var [] 0xabc(var + was valid)
fixed error positions on some numeric literals where the end was one column off
fixed a crash that occurred when there was no identifier after #
fixed a crash that occurred when there was a missing } or }> on repeated sequences
fixed error message on for loops missing ], it now says unmatched '[' instead of unexpected token
fixed error messages for extractions and container assignments showing the wrong types
fixed error positions for container assignments
fixed error printing when there was an indented line

0.7.1#

Nest#

Changes

added zipn in stditutil.nest to simultaiously iterate over an arbitrary number of sequences
now if-expressions use less instructions when both cases return null
removed multiline comment spaces in the Sublime Text plugin

Bug fixes

fixed replace_substr in stdsutil.nest that would sometimes crash
fixed a crash when an error occurred during the optimization of the bytecode

0.7.0#

Nest#

Changes

Added stdco.nest library to create and run coroutines
Added starts_with, ends_with and str_to_bytearray in stdsutil.nest
Improved error printing on multiple lines
Printing a lot of lines when printing errors is now much faster
added binary, octal and hexadecimal integer literals and scientific notation for real literals
- to write bytes with hexadecimal integer start with 0h instead of 0x
- scientific notation still needs a literal with a decimal point and digitds on both sides
now underscores (_) can be added inside numbers to make them more legible (100_000_000)
changed "Add to PATH variable" to "Add to PATH environment variable" in the installer
now clock_time, gmt_clock_time, clock_datetime and gmt_clock_datetime insert the keys from the least specifit to the most specific, for example calling dt.clock_time will now return { 'hours': 17, 'minutes': 32, 'seconds': 59 } instead of { 'seconds': 59, 'minutes': 32, 'hours': 17 }
added operators when displaying bytecode
now the bytecode of large programs is displayed faster

Bug fixes

fixed a crash that happened when an error occurred inside a call from a C function
fixed the indentation of carets when pointing to an indented error
now when executing code from the -c argument no path is added to the import stack
fixed crashes caused by the garbage collector deleting still reachable objects
fixed slice in stdsequtil that would crash in many occasions
fixed contains in stdsequtil that would crash when returning a type error

0.6.3#

Nest#

Fixes#

fixed a lot of memory leaks
fixed maps causing a crash when iterated on after changing one of the middle keys
fixed circular import error reporting showing twice the lines of the first file
optimized replace_substr in stdsutil.nest
fixed sort in stdsequtil.nest sometimes causing a crash

0.6.2#

Nest#

Changes

now you can have new lines before and after the expression in loops

Fixes#

now functions defined in the main file access the variable of the file they were defined and not the file where they were called
fixed maps not always decreasing the reference count of the keys when destroyed
slight performance improvements
try-catch no longer leaves values behind
fixed if expression not setting a value when a statement does not return one

0.6.1#

Nest#

Changes

added the '!!' operator to throw an error and removed the throw function from stderr.nest
added the try-catch statement but kept the try function as it gives more details on the error
added some optimizations to the bytecode

Bug fixes

fixed the try function not working
fixed passing a non-existent file causing a crash
fixed the x86 installer not showing the add to PATH option

0.6.0#

Nest#

Installer

you can now add Nest to PATH through the installer, the variable is removed if Nest is uninstalled and is not duplicated

Changes

added the stderr.nest module, the 'throw' and 'try' functions are temporary as they will be substituted with a special syntax
added the \e escape sequence that is equivalent to \x1b and can be used for ANSI escape codes such as \e[33m for the color yellow
changed ~= to :=
the message displayed when -c is used incorrectly is now Invalid usage of the option: -c instead of Invalid option: -c
swapped the start and the step in the range operator, it now is [step] <start> -> <stop>
changed the behaviour of - for maps and vectors, now it will return the map or the vector to which it was applied instead of true or false

Bug fixes

now when printing the call traceback of a function the whole call expression is highlighted instead of only the first letter
fixed functions called from C libraries not being able to access other variables in their module
fixed .. in for loops and switch statements causing an infinite loop
fixed a crash that could occur when a library called the function nst_call_func
now when using a step of 0 with the range operator an error is thrown
fixed circular references not throwing an error when encountered
fixed some crashes related to error handling and reporting
now Nest should use less memory when many libraries are imported

0.5.2#

Nest#

Changes

Byte objects can now be used as map keys
the == operator can now be used with maps
maps are now slightly faster when re-inserting the items (this happens when an item is dropped or the map changes the internal size)
clearer explaination in the help message for -O0 and -O1

Bug fixes

fixed .. statement causing the for-as loop to not call the _advance_ function

0.5.1#

Nest#

Changes

added the functions filter and contains to stdsequtil.nest
added the constant VERSION to stdsys.nest
now the standard modules drop all the default variables
now the error messages are colorful and this can be disabled with the -m or --monochrome flag in the command
now the error messages for the wrong type of a C function tells the argument index starting from 1 instead of 0

Bug fixes

fixed a crash that occurred when an argument of the wrong type was fed to a C function
fixed a crash that occurred when comparing self-referencing arrays or vectors, now if a cycle is detected the equality is automatically false
fixed error messages displaying in the wrong order when an error occurred while a nest module was tokenized, parsed or optimized

0.5.0#

Command improvements#

standardized command-line arguments parsing according to GNU specifications
- -- marks the end of the arguments
- you can combine multiple one-letter options under one dash (such as -bf)
added -f or --force-execution option to force the execution of the program when -t, -a or -b are used
added -O0 to -O3 command line arguments to specify the optimization level, if specified more than one only the last one counts
added -c option that executes the next argument as nest code (nest -c ">>> 'Hello, world!'" prints Hello, world!)
now you can specify more than one compilation insight flag (-t, -a or -b) meaning that the command nest -ta file.nest will print both the tokens and the abstract syntax tree

Nest#

Changes

now maps maintain the order of the elements that were put in, this affects map iterators in stditutil.nest and the casting to string
renamed IOfile to IOFile to match the naming convention of other types
now real numbers are printed with up to 15 significant digits (before it was 6)
real numbers are compared up to 15 significant digits (now 0.1 0.2 + 0.3 == is true)
added documentation for split and join in string_utilities_library.md
now vectors allow newlines after the comma
now you can put the argument names of a function definition on separate lines without backslashes
now the repr function in stdsutil.nest will accept any type of object
now numbers can have a leading plus sign (1 2 +3 and 1 2 3 are equivalent)
added byte literal by putting b or B after an integer
now you can use a byte literal when casting a string to a byte (Byte :: 'A' and Byte :: '65b' are equivalent)
now bytes inside of maps, arrays or vectors will be printed with the literal instead of the character
improved error messages for operators and function calls
now bytearray_to_str in stdsutil.nest does not raise an error when there is a NUL byte in the array

Bug fixes

fixed item dropping for maps that sometimes resulted in a crash
fixed _cwd_ having the wrong length
functions from external modules now reference the module's global variables rather than the ones of the module they are imported to
now -9223372036854775808 is considered a valid integer literal
fixed nest module imports sometimes failing
now the error message for an index outside of bounds for a string displays the correct index
fixed for loop not popping the iterator off the stack, this resulted in nested loops not working sometimes
opening an invalid DLL now no longer opens a pop-up error window
now all the functions in in stdsutil.nest end at the end of the string at not at the first NUL byte

Other

added a VSCode plugin, to paste in %USERPROFILE%\.vscode\extensions
updated the syntax highlighting for sublime text

0.4.1#

Nest#

added lambda expressions
fixed error traceback on call stack causing a crash
fixed for-as loop crashing when a non-iterator object was given
you can once again index strings
updated documentation

0.4.0#

Nest#

added the stdsys.nest standard library
added the stdsequtil.nest standart library
added min, max, min_seq, max_seq. sum_seq, frexp, ldexp, map and clamp functions to stdmath.nest
added iter_start, iter_is_done, iter_get_val and iter_advance functions to stditutil.nest
improved error tracing with C function calls
improved single-line escapes in comment parsing, now an even number of backslashes correctly escapes the newline
added octal character escapes in string literals

0.3.1#

Nest#

fixed nst_map_drop, now the reference is removed correctly
fixed _vars_ object deleted when it shouldn't

0.3.0#

Nest#

nest now compiles internally to bytecode
fixed _vars_ being deleted even when returned by a function
added _globals_, in functions accesses the global variables, in the global scope is null
greatly improved memory usage
the program is now optimized
expressions with known values are evaluated
the bytecode optimizes the instructions used
built-in variables are swapped with their value if it is never changed
more error checking is performed before runtime
unreachable code is removed
the -v option was renamed to -V
added the -? option, equivalent to -h or --help
added -b and --bytecode options to see the compilation result
better printing for tokens and ast when using the -t or -a options
from now on there will be a windows 32-bit build as well

0.2.2#

Nest#

Byte objects now support +, -, *, /, % and ^
== now works correctly on Real objects
fixed a bug that caused a crash when trying to parse an expression

0.2.1#

Nest#

fixed <, <=, > and >= yeilding unexpected results when comparing reals and integers
now IOfile objects throw errors with unsupported operations such as read on a file opened with rb
increased performance

0.2.0#

Nest#

added the ability to import modules and call functions from C libraries
now - will remove a key from a map, { 'a': 1, 'b': 2 } 'a' - --> true, the map is now { 'b': 2 }
added switch statement
added split and join functions to stdsutil.nest
added mkdirs, rmdir_recursive, copy, rename, list_dir, list_dir_recursive, absolute_path and equivalent functions to stdfs.nest
added _vars_, a variable pointing to the dictionary with all the current variables
fixed maps not changing their maximum size after increasing it
now the current working directory changes when importing a module
fixed replace_substr failing when replacing the first occurrence caused the string to be bigger than the original
fixed not-closed multiline comments not resulting in a syntax error

0.1.4#

Nest#

added Map to Str cast
added ability to pass a Str object to cycle, zip, enumerate and reverse in stditutil.nest
added ability to pass a Str object to choice, in stdrand.nest
added repr function to stdsutil.nest
changed yearday to year_day and weekday to week_day for date, clock_datetime and gmt_clock_datetime in stdtime.nest
fixed year being the same as month for date, clock_datetime and gmt_clock_datetime in stdtime.nest
fixed parser parsing some expressions incorrectly
fixed move_fptr and get_fptr requesting the incorrect number of arguments
fixed math module not working
fixed shuffle in stdrand.nest where an object could not remain in its position

0.1.3#

Nest#

added stdmath.nest library
added stditutils.nest library (iterator utities)
added -: operator for negation -:a is equal to (0 a -)
added @@ operator to call a function with no arguments: 10 @@func + is equal to 10 (@func) +
added an optional free_lib function to C libraries to free any globally allocated memory
modified _cwd_, now it shows the full path and not the relative path to the main file
added a native Array or Vector to Str cast and vice versa
fixed flush function in stdio.nest expecting two arguments but taking only one