From df0d6a4503a26508553510b4050eaa79f52e4e4e Mon Sep 17 00:00:00 2001
From: Aleksey Veresov <aleksey@veresov.pro>
Date: Sun, 18 Oct 2020 18:22:31 +0300
Subject: Another step to release.

---
 enki/strans.c | 652 ----------------------------------------------------------
 1 file changed, 652 deletions(-)
 delete mode 100644 enki/strans.c

(limited to 'enki/strans.c')

diff --git a/enki/strans.c b/enki/strans.c
deleted file mode 100644
index e3d834d..0000000
--- a/enki/strans.c
+++ /dev/null
@@ -1,652 +0,0 @@
-/*
-	Simple Stack Translator
-	created by exegete
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-
-struct stack_elem
-{
-	unsigned long long value;
-	struct stack_elem *next;
-};
-
-struct identifier
-{
-	const char *lexem;
-	unsigned long long value;
-	struct identifier *next;
-};
-
-struct segment
-{
-	char *buffer;
-	unsigned long long real_size;
-	unsigned long long size;
-	unsigned long long pointer_address;
-	unsigned long long base_address;
-	unsigned long long base_offset;
-	int data_size;
-	int data_endianness;
-	struct segment *next;
-};
-
-struct environment
-{
-	struct stack_elem *stack;
-	struct identifier *id_list;
-	struct segment *seg_list;
-	unsigned long long chosen_segment;
-};
-
-struct operator
-{
-	void (*func)(struct environment *env);
-	const char *lexem;
-};
-
-#define ERROR_STATUS_STACK_OVERFLOW 1
-#define ERROR_STATUS_STACK_EMPTY 2
-#define ERROR_STATUS_ID_LIST_OVERFLOW 3
-#define ERROR_STATUS_SEG_LIST_OVERFLOW 4
-#define ERROR_STATUS_INVALID_SEGMENT 5
-#define ERROR_STATUS_WORD_BUFFER_OVERFLOW 6
-#define ERROR_STATUS_LEXEM_OVERFLOW 7
-#define ERROR_STATUS_UNDEFINED 8
-#define ERROR_STATUS_INVALID_ACCESS 9
-#define ERROR_STATUS_INVALID_WORD_SIZE 10
-#define ERROR_STATUS_WORD_ENDIANNESS_INVALID 11
-
-const char *error_msgs[] =
-{
-	"Stack overflow",
-	"Stack is empty",
-	"Identifier list overflow",
-	"Segment list overflow",
-	"Invalid chosen segment",
-	"Word buffer overflow",
-	"Lexem is too big",
-	"Undefined lexem: ",
-	"Invalid segment access",
-	"Invalid segment data size",
-	"Invalid segment data endianness"
-};
-
-void exit_error(int status, const char *lexem)
-{
-	if(lexem)
-		fprintf(stderr, "Error: %s%s\n", error_msgs[status - 1],
-			lexem);
-	else
-		fprintf(stderr, "Error: %s\n", error_msgs[status - 1]);
-	exit(status);
-}
-
-unsigned long long create_segment(struct environment *env)
-{
-	struct segment **chosen_segment = &env->seg_list;
-	unsigned long long segment_counter = 0;
-	for(; *chosen_segment; chosen_segment = &(*chosen_segment)->next)
-		segment_counter++;
-	*chosen_segment = malloc(sizeof(struct segment));
-	if(!*chosen_segment)
-		exit_error(ERROR_STATUS_SEG_LIST_OVERFLOW, NULL);
-	(*chosen_segment)->buffer = NULL;
-	(*chosen_segment)->real_size = 0;
-	(*chosen_segment)->size = 0;
-	(*chosen_segment)->pointer_address = 0;
-	(*chosen_segment)->base_address = 0;
-	(*chosen_segment)->base_offset = 0;
-	(*chosen_segment)->data_size = 1;
-	(*chosen_segment)->data_endianness = 0;
-	(*chosen_segment)->next = NULL;
-	return segment_counter;
-}
-
-struct segment *get_segment(struct environment *env)
-{
-	struct segment *chosen_segment = env->seg_list;
-	unsigned long long segment_counter = env->chosen_segment;
-	while(chosen_segment && segment_counter--)
-		chosen_segment = chosen_segment->next;
-	if(!chosen_segment)
-		exit_error(ERROR_STATUS_INVALID_SEGMENT, NULL);
-	return chosen_segment;
-}
-
-void initialize_environment(struct environment *env)
-{
-	env->stack = NULL;
-	env->id_list = NULL;
-	env->seg_list = NULL;
-	env->chosen_segment = 0;
-}
-
-int is_separator(int symb)
-{
-	return symb == ' ' || symb == '\n' || symb == '\t' || symb == '\r';
-}
-
-#define BUFFER_INITIAL_SIZE 4
-
-int double_buffer(char **buffer, unsigned long long *buffer_size)
-{
-	char *tmp_pointer = *buffer;
-	unsigned long long tmp_size = *buffer_size;
-
-	if(*buffer_size == 0)
-		*buffer_size = BUFFER_INITIAL_SIZE;
-	else
-		*buffer_size *= 2;
-
-	*buffer = malloc(*buffer_size);
-	if(!*buffer)
-		return 0;
-
-	for(; tmp_size > 0; tmp_size--)
-		(*buffer)[tmp_size - 1] = tmp_pointer[tmp_size - 1];
-
-	free(tmp_pointer);
-	return 1;
-}
-
-char *read_lexem()
-{
-	char *buffer = NULL;
-	unsigned long long buffer_size = 0;
-	int symb;
-	unsigned long long index;
-
-	while(is_separator(symb = getchar()))
-	{}
-
-	if(symb == EOF)
-		return NULL;
-
-	for(index = 0;; index++)
-	{
-		if(index == buffer_size)
-			if(!double_buffer(&buffer, &buffer_size))
-				exit_error(ERROR_STATUS_LEXEM_OVERFLOW, NULL);
-		if(symb == EOF || is_separator(symb))
-		{
-			buffer[index] = 0;
-			break;
-		}
-		buffer[index] = symb;
-		symb = getchar();
-	}
-	return buffer;
-}
-
-void push_stack_elem(struct stack_elem **stack, unsigned long long value)
-{
-	struct stack_elem *head = *stack;
-	*stack = malloc(sizeof(struct stack_elem));
-	if(!*stack)
-		exit_error(ERROR_STATUS_STACK_OVERFLOW, NULL);
-	(*stack)->value = value;
-	(*stack)->next = head;
-}
-
-unsigned long long pop_stack_elem(struct stack_elem **stack)
-{
-	struct stack_elem *head = *stack;
-	unsigned long long value;
-	if(!head)
-		exit_error(ERROR_STATUS_STACK_EMPTY, NULL);
-	value = head->value;
-	*stack = head->next;
-	free(head);
-	return value;
-}
-
-int is_symb_hex(char symb)
-{
-	if(symb >= '0' && symb <= '9')
-		return symb - '0';
-	else
-	if(symb >= 'A' && symb <= 'F')
-		return symb - 'A' + 10;
-	else
-	if(symb >= 'a' && symb <= 'f')
-		return symb - 'a' + 10;
-	else
-		return -1;
-}
-
-int is_lexem_hex(struct environment *env, const char *lexem)
-{
-	int sign = 0;
-	unsigned long long hex = 0;
-	if(*lexem == '-' && *(lexem + 1))
-	{
-		sign = 1;
-		lexem++;
-	}
-
-	for(; *lexem; lexem++)
-	{
-		int num = is_symb_hex(*lexem);
-		if(num != -1)
-			hex = (hex << 4) + num;
-		else
-			return 0;
-	}
-	hex = sign ? ~hex + 1 : hex;
-	push_stack_elem(&env->stack, hex);
-	return 1;
-}
-
-int compare_lexems(const char *lexem_one, const char *lexem_two)
-{
-	for(; *lexem_one && *lexem_two; lexem_one++, lexem_two++)
-		if(*lexem_one != *lexem_two)
-			return 0;
-	return *lexem_one == *lexem_two;
-}
-
-void add_identifier(struct identifier **id_list, const char *lexem,
-	unsigned long long value)
-{
-	struct identifier *head = *id_list;
-	*id_list = malloc(sizeof(struct identifier));
-	if(!id_list)
-		exit_error(ERROR_STATUS_ID_LIST_OVERFLOW, NULL);
-	(*id_list)->lexem = lexem;
-	(*id_list)->value = value;
-	(*id_list)->next = head;
-}
-
-int find_identifier(struct environment *env, const char *lexem)
-{
-	struct identifier *id_list = env->id_list;
-	for(; id_list; id_list = id_list->next)
-	{
-		if(compare_lexems(lexem, id_list->lexem))
-		{
-			push_stack_elem(&env->stack, id_list->value);
-			return 1;
-		}
-	}
-	return 0;
-}
-
-void segment_compile_byte(struct environment *env, char byte)
-{
-	unsigned long long index = get_segment(env)->size;
-	if(index == get_segment(env)->real_size)
-		if(!double_buffer(&get_segment(env)->buffer,
-			&get_segment(env)->real_size))
-			exit_error(ERROR_STATUS_WORD_BUFFER_OVERFLOW, NULL);
-	get_segment(env)->buffer[index] = byte;
-	get_segment(env)->size++;
-	get_segment(env)->pointer_address++;
-}
-
-void segment_compile(struct environment *env, unsigned long long value,
-	int size)
-{
-	int dir = get_segment(env)->data_endianness ? -1 : 1;
-	int index = get_segment(env)->data_endianness * (size - 1);
-	for(; index < size && index >= 0; index += dir)
-		segment_compile_byte(env, value >> index * 8);
-}
-
-unsigned long long convert_address(struct environment *env,
-	unsigned long long address, int size)
-{
-	unsigned long long pointer_address =
-		get_segment(env)->pointer_address;
-	unsigned long long base_address = get_segment(env)->base_address;
-	unsigned long long base_offset = get_segment(env)->base_offset;
-	if(address < base_address || address + size > pointer_address)
-		exit_error(ERROR_STATUS_INVALID_ACCESS, NULL);
-	return address - base_address + base_offset;
-}
-
-unsigned long long segment_read(struct environment *env,
-	unsigned long long address, int size)
-{
-	unsigned long long value = 0;
-	int dir = get_segment(env)->data_endianness ? 1 : -1;
-	int index = get_segment(env)->data_endianness ? 0 : (size - 1);
-	address = convert_address(env, address, size);
-	for(; index < size && index >= 0; index += dir)
-		value = (value << 8) +
-			(get_segment(env)->buffer[address + index] & 0xFF);
-	return value;
-}
-
-void segment_write(struct environment *env, unsigned long long value,
-	unsigned long long address, int size)
-{
-	int dir = get_segment(env)->data_endianness ? -1 : 1;
-	int index = get_segment(env)->data_endianness * (size - 1);
-	address = convert_address(env, address, size);
-	for(; index < size && index >= 0; index += dir)
-	{
-		get_segment(env)->buffer[address + index] = value;
-		value >>= 8;
-	}
-}
-
-void translator_drop(struct environment *env)
-{
-	pop_stack_elem(&env->stack);
-}
-
-void translator_dup(struct environment *env)
-{
-	unsigned long long value = pop_stack_elem(&env->stack);
-	push_stack_elem(&env->stack, value);
-	push_stack_elem(&env->stack, value);
-}
-
-void translator_over(struct environment *env)
-{
-	unsigned long long value_one = pop_stack_elem(&env->stack);
-	unsigned long long value_two = pop_stack_elem(&env->stack);
-	push_stack_elem(&env->stack, value_two);
-	push_stack_elem(&env->stack, value_one);
-	push_stack_elem(&env->stack, value_two);
-}
-
-void translator_swap(struct environment *env)
-{
-	unsigned long long value_one = pop_stack_elem(&env->stack);
-	unsigned long long value_two = pop_stack_elem(&env->stack);
-	push_stack_elem(&env->stack, value_one);
-	push_stack_elem(&env->stack, value_two);
-}
-
-void translator_add(struct environment *env)
-{
-	unsigned long long first = pop_stack_elem(&env->stack);
-	unsigned long long second = pop_stack_elem(&env->stack);
-	push_stack_elem(&env->stack, second + first);
-}
-
-void translator_sub(struct environment *env)
-{
-	unsigned long long first = pop_stack_elem(&env->stack);
-	unsigned long long second = pop_stack_elem(&env->stack);
-	push_stack_elem(&env->stack, second - first);
-}
-
-void translator_mul(struct environment *env)
-{
-	unsigned long long first = pop_stack_elem(&env->stack);
-	unsigned long long second = pop_stack_elem(&env->stack);
-	push_stack_elem(&env->stack, second * first);
-}
-
-void translator_div(struct environment *env)
-{
-	unsigned long long first = pop_stack_elem(&env->stack);
-	unsigned long long second = pop_stack_elem(&env->stack);
-	push_stack_elem(&env->stack, second / first);
-}
-
-void translator_mod(struct environment *env)
-{
-	unsigned long long first = pop_stack_elem(&env->stack);
-	unsigned long long second = pop_stack_elem(&env->stack);
-	push_stack_elem(&env->stack, second % first);
-}
-
-void translator_define_identifier(struct environment *env)
-{
-	unsigned long long value = pop_stack_elem(&env->stack);
-	add_identifier(&env->id_list, read_lexem(), value);
-}
-
-void translator_compile_one(struct environment *env)
-{
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_compile(env, value, 1);
-}
-
-void translator_compile_two(struct environment *env)
-{
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_compile(env, value, 2);
-}
-
-void translator_compile_four(struct environment *env)
-{
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_compile(env, value, 4);
-}
-
-void translator_compile_eight(struct environment *env)
-{
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_compile(env, value, 8);
-}
-
-void translator_compile(struct environment *env)
-{
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_compile(env, value, get_segment(env)->data_size);
-}
-
-void translator_reserve(struct environment *env)
-{
-	unsigned long long count = pop_stack_elem(&env->stack);
-	while(count--)
-		segment_compile(env, 0, 1);
-}
-
-void translator_read_one(struct environment *env)
-{
-	unsigned long long value = segment_read(env,
-		pop_stack_elem(&env->stack), 1);
-	push_stack_elem(&env->stack, value);
-}
-
-void translator_read_two(struct environment *env)
-{
-	unsigned long long value = segment_read(env,
-		pop_stack_elem(&env->stack), 2);
-	push_stack_elem(&env->stack, value);
-}
-
-void translator_read_four(struct environment *env)
-{
-	unsigned long long value = segment_read(env,
-		pop_stack_elem(&env->stack), 4);
-	push_stack_elem(&env->stack, value);
-}
-
-void translator_read_eight(struct environment *env)
-{
-	unsigned long long value = segment_read(env,
-		pop_stack_elem(&env->stack), 8);
-	push_stack_elem(&env->stack, value);
-}
-
-void translator_read(struct environment *env)
-{
-	unsigned long long value = segment_read(env,
-		pop_stack_elem(&env->stack), get_segment(env)->data_size);
-	push_stack_elem(&env->stack, value);
-}
-
-void translator_write_one(struct environment *env)
-{
-	unsigned long long address = pop_stack_elem(&env->stack);
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_write(env, value, address, 1);
-}
-
-void translator_write_two(struct environment *env)
-{
-	unsigned long long address = pop_stack_elem(&env->stack);
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_write(env, value, address, 2);
-}
-
-void translator_write_four(struct environment *env)
-{
-	unsigned long long address = pop_stack_elem(&env->stack);
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_write(env, value, address, 4);
-}
-
-void translator_write_eight(struct environment *env)
-{
-	unsigned long long address = pop_stack_elem(&env->stack);
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_write(env, value, address, 8);
-}
-
-void translator_write(struct environment *env)
-{
-	unsigned long long address = pop_stack_elem(&env->stack);
-	unsigned long long value = pop_stack_elem(&env->stack);
-	segment_write(env, value, address, get_segment(env)->data_size);
-}
-
-void translator_create_segment(struct environment *env)
-{
-	push_stack_elem(&env->stack, create_segment(env));
-}
-
-void translator_choose_segment(struct environment *env)
-{
-	env->chosen_segment = pop_stack_elem(&env->stack);
-}
-
-void translator_set_base(struct environment *env)
-{
-	get_segment(env)->base_address = pop_stack_elem(&env->stack);
-	get_segment(env)->pointer_address = get_segment(env)->base_address;
-	get_segment(env)->base_offset = get_segment(env)->size;
-}
-
-#define WORD_SIZE_MAX 8
-
-void translator_set_data_size(struct environment *env)
-{
-	int target_size = pop_stack_elem(&env->stack);
-	if(target_size <= 0 || target_size > WORD_SIZE_MAX)
-		exit_error(ERROR_STATUS_INVALID_WORD_SIZE, NULL);
-	get_segment(env)->data_size = target_size;
-}
-
-void translator_set_data_endianness(struct environment *env)
-{
-	int endianness = pop_stack_elem(&env->stack);
-	if(endianness > 1)
-		exit_error(ERROR_STATUS_WORD_ENDIANNESS_INVALID, NULL);
-	get_segment(env)->data_endianness = endianness;
-}
-
-void translator_get_offset(struct environment *env)
-{
-	push_stack_elem(&env->stack, get_segment(env)->pointer_address);
-}
-
-void translator_get_base(struct environment *env)
-{
-	push_stack_elem(&env->stack, get_segment(env)->base_address);
-}
-
-void translator_print(struct environment *env)
-{
-	unsigned long long value = pop_stack_elem(&env->stack);
-	fprintf(stderr, "%llx\n", value);
-}
-
-const struct operator translator_operators[] =
-{
-	{ &translator_drop, "?drop" },
-	{ &translator_dup, "?dup" },
-	{ &translator_over, "?over" },
-	{ &translator_swap, "?swap" },
-	{ &translator_add, "?+" },
-	{ &translator_sub, "?-" },
-	{ &translator_mul, "?*" },
-	{ &translator_div, "?/" },
-	{ &translator_mod, "?mod" },
-	{ &translator_define_identifier, "??" },
-	{ &translator_compile_one, "?'" },
-	{ &translator_compile_one, "?1." },
-	{ &translator_compile_two, "?2." },
-	{ &translator_compile_four, "?4." },
-	{ &translator_compile_eight, "?8." },
-	{ &translator_compile, "?." },
-	{ &translator_reserve, "?res" },
-	{ &translator_read_one, "?1@" },
-	{ &translator_read_two, "?2@" },
-	{ &translator_read_four, "?4@" },
-	{ &translator_read_eight, "?8@" },
-	{ &translator_read, "?@" },
-	{ &translator_write_one, "?1!" },
-	{ &translator_write_two, "?2!" },
-	{ &translator_write_four, "?4!" },
-	{ &translator_write_eight, "?8!" },
-	{ &translator_write, "?!" },
-	{ &translator_create_segment, "?create" },
-	{ &translator_choose_segment, "?choose" },
-	{ &translator_set_base, "?org" },
-	{ &translator_set_data_size, "?size" },
-	{ &translator_set_data_endianness, "?endianness" },
-	{ &translator_get_offset, "?$" },
-	{ &translator_get_base, "?$$" },
-	{ &translator_print, "?print" },
-};
-
-int execute_operator(struct environment *env, const char *lexem)
-{
-	int operators_count =
-		sizeof(translator_operators) / sizeof(*translator_operators);
-	int index;
-
-	for(index = 0; index < operators_count; index++)
-	{
-		if(compare_lexems(lexem, translator_operators[index].lexem))
-		{
-			(*translator_operators[index].func)(env);
-			break;
-		}
-	}
-
-	return index != operators_count;
-}
-
-void print_target_buffer(struct environment *env)
-{
-	struct segment *seg_list;
-	unsigned long long index;
-	for(seg_list = env->seg_list; seg_list; seg_list = seg_list->next)
-		for(index = 0; index < seg_list->size; index++)
-			putchar(seg_list->buffer[index]);
-}
-
-int main()
-{
-	struct environment env;
-	char *lexem;
-
-	initialize_environment(&env);
-
-	for(;; free(lexem))
-	{
-		lexem = read_lexem();
-		if(!lexem)
-			break;
-		if(find_identifier(&env, lexem))
-			continue;
-		if(is_lexem_hex(&env, lexem))
-			continue;
-		if(!execute_operator(&env, lexem))
-			exit_error(ERROR_STATUS_UNDEFINED, lexem);
-	}
-
-	print_target_buffer(&env);
-
-	return 0;
-}
-- 
cgit v1.2.3