about summary refs log tree commit diff
path: root/src/cccl.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/cccl.c')
-rw-r--r--src/cccl.c394
1 files changed, 0 insertions, 394 deletions
diff --git a/src/cccl.c b/src/cccl.c
deleted file mode 100644
index e2bb788..0000000
--- a/src/cccl.c
+++ /dev/null
@@ -1,394 +0,0 @@
-#include "cccl.h"
-#include "types.h"
-
-#include <cvector/cvector.h>
-#include <errno.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "operation.h"
-#include "platform/getch.h"
-#include "utils.h"
-
-
-static cccl pc = {0};
-static const s8 *const name_allowed   = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
-static const s8 *const name_allowed_  = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_";
-static const s8 *const all_allowed    = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_{}[]()?;@=!&$%<>^+-*~#:/ \n\t";
-static const s8 *const skippable      = " \t\n";
-static const s8 *const open_brackets  = "[({?";
-static const s8 *const close_brackets = "])};";
-
-static void cccl_varpair_free(void *p)
-{
-    cvector_free(*(cccl_varpair **)p);
-}
-
-void cccl_init(s8 *filename)
-{
-    memset(&pc, 0, sizeof(pc));
-
-    cvector_init(pc.stack,      1, NULL);
-    cvector_init(pc.variables,  1, NULL);
-    cvector_init(pc.procedures, 1, NULL);
-    cvector_init(pc.lv_stack,   1, cccl_varpair_free);
-    cvector_init(pc.ep_stack,   1, NULL);
-    if (errno) die(1, strerror(errno));
-
-    pc.filename = filename;
-    cccl_operation_init(&pc);
-}
-
-void cccl_free()
-{
-    cvector_free(pc.stack);
-    cvector_free(pc.variables);
-    cvector_free(pc.procedures);
-    cvector_free(pc.lv_stack);
-    cvector_free(pc.ep_stack);
-    free(pc.code);
-}
-
-void cccl_read(void)
-{
-    s8 chr;
-    FILE *file = fopen(pc.filename, "r");
-    if (errno) die(1, strerror(errno));
-        fseek(file, 0, SEEK_END);
-        pc.size = ftell(file);
-        fseek(file, 0, SEEK_SET);
-        pc.code = calloc(pc.size + 1, sizeof(s8));
-
-        for (u32 i = 0; i < pc.size; ++i)
-        {
-            if ((chr = fgetc(file)) == EOF)
-            {
-                if (errno)
-                {
-                    fclose(file);
-                    die(1, strerror(errno));
-                }
-                else
-                {
-                    break;
-                }
-            }
-            pc.code[i] = chr;
-        }
-    fclose(file);
-}
-
-static void check_symbol(void)
-{
-    if (!strchr(all_allowed, pc.code[pc.ep]))
-        die(1, "illegal character (%u at %d)", pc.code[pc.ep], pc.ep);
-}
-
-static void require_stack_size(u32 size, i32 start)
-{
-    if (cvector_size(pc.stack) < size)
-        die(1, "stack size is %d, but %d is required (%c at %d)", cvector_size(pc.stack), size, pc.code[start], start);
-}
-
-static i32 require_variable_local(s8 name)
-{
-    if (cvector_size(pc.lv_stack) > 0)
-        for (i32 i = 0; i < cvector_size(pc.lv_stack[cvector_size(pc.lv_stack) - 1]); ++i)
-            if (pc.lv_stack[cvector_size(pc.lv_stack) - 1][i].name == name)
-                return i;
-    return -1;
-}
-
-static i32 require_variable(s8 name)
-{
-    for (i32 i = 0; i < cvector_size(pc.variables); ++i)
-        if (pc.variables[i].name == name)
-            return i;
-    return -1;
-}
-
-static i32 require_procedure(s8 name)
-{
-    for (i32 i = 0; i < cvector_size(pc.procedures); ++i)
-        if (pc.procedures[i].name == name)
-            return i;
-    return -1;
-}
-
-static i32 find_bracket(i32 start)
-{
-    i32 start_length = cvector_size(pc.br_stack);
-    cccl_brpair brpair;
-    for (i32 pointer = pc.ep+1; pointer < pc.size; ++pointer)
-    {
-        check_symbol();
-        if (strchr(skippable, pc.code[pointer])) continue;
-        else if (strchr(open_brackets, pc.code[pointer]))
-        {
-            brpair = (cccl_brpair){.pointer=pointer, .bracket=close_brackets[strchr(open_brackets, pc.code[pointer]) - open_brackets]};
-            cvector_push_back(pc.br_stack, brpair);
-        }
-        else if (strchr(close_brackets, pc.code[pointer]))
-        {
-            if (pc.code[pointer] != pc.br_stack[cvector_size(pc.br_stack) - 1].bracket)
-                die(1, "invalid bracket (%c at %d for %c at %d)", pc.code[pointer], pointer, pc.code[pc.br_stack[cvector_size(pc.br_stack) - 1].pointer], pc.br_stack[cvector_size(pc.br_stack) - 1].pointer);
-            cvector_pop_back(pc.br_stack);
-        }
-        if (cvector_size(pc.br_stack) < start_length) return pointer;
-    }
-    die(1, "unclosed bracket (%c at %d)", pc.code[start], start);
-}
-
-static s8 read_operand(bool allow_underscore)
-{
-    i32 start = pc.ep;
-    for (++pc.ep; pc.ep < pc.size; ++pc.ep)
-    {
-        check_symbol();
-        if (strchr(skippable, pc.code[pc.ep])) continue;
-        if (!strchr(allow_underscore ? name_allowed_ : name_allowed, pc.code[pc.ep]))
-            die(1, "invalid operand name (%c at %d for %c at %d)", pc.code[pc.ep], pc.ep, pc.code[start], start);
-        return pc.code[pc.ep];
-    }
-    die(1, "no operand (for %c at %d)", pc.code[start], start);
-}
-
-void cccl_run(void)
-{
-    i32 variable, start, var, bracket;
-    cccl_varpair varpair;
-    cccl_pointer pointer;
-    cccl_brpair  brpair;
-    s8 operand;
-    bool is_comment;
-    for (pc.ep = 0; pc.ep < pc.size; ++pc.ep)
-    {
-        if (is_comment && pc.code[pc.ep] == '\n')
-            is_comment = false;
-        else if (is_comment)
-            continue;
-        check_symbol();
-        start = pc.ep;
-        switch (pc.code[pc.ep])
-        {
-        case ' ':
-        case '\t':
-        case ';':
-            break;
-        case '/':
-            is_comment = true;
-            break;
-        case '^':
-            cvector_push_back(pc.stack, 0);
-            break;
-        case '+':
-            require_stack_size(1, pc.ep);
-            ++pc.stack[cvector_size(pc.stack) - 1];
-            break;
-        case '-':
-            require_stack_size(1, pc.ep);
-            --pc.stack[cvector_size(pc.stack) - 1];
-            break;
-        case '*':
-            require_stack_size(2, pc.ep);
-            pc.stack[cvector_size(pc.stack) - 2] += pc.stack[cvector_size(pc.stack) - 1];
-            cvector_pop_back(pc.stack);
-            break;
-        case '~':
-            require_stack_size(2, pc.ep);
-            pc.stack[cvector_size(pc.stack) - 2] -= pc.stack[cvector_size(pc.stack) - 1];
-            cvector_pop_back(pc.stack);
-            break;
-        case '%':
-            operand = read_operand(true);
-            i16 *to_reverse = NULL;
-            i32 size;
-            if (operand == '_')
-            {
-                size = cvector_size(pc.stack);
-            }
-            else
-            {
-                if ((var = require_variable_local(operand)) == -1)
-                {
-                    if ((var = require_variable(operand)) == -1)
-                        die(1, "no %c variable found (%% at %d)", operand, start);
-                    else
-                        size = pc.lv_stack[cvector_size(pc.lv_stack) - 1][var].value;
-                } else
-                {
-                    size = pc.variables[var].value;
-                }
-            }
-            if (size < 1)
-                die(1, "invalid argument %d, should be not less than 1 (%% at %d)", size, start);
-            require_stack_size(size, start);
-            cvector_init(to_reverse, size, NULL);
-            for (int i = 0; i < size; ++i)
-            {
-                cvector_push_back(to_reverse, pc.stack[cvector_size(pc.stack) - 1]);
-                cvector_pop_back(pc.stack);
-            }
-            for (int i = 0; i < size; ++i)
-                cvector_push_back(pc.stack, to_reverse[i]);
-            cvector_free(to_reverse);
-            break;
-        case '=':
-            operand = read_operand(true);
-            require_stack_size(1, start);
-            varpair = (cccl_varpair){.name=operand, .value=pc.stack[cvector_size(pc.stack) - 1]};
-            if (operand != '_')
-            {
-                if ((var = require_variable_local(operand)) == -1)
-                    if ((var = require_variable(operand)) == -1)
-                        cvector_push_back(pc.variables, varpair);
-                    else
-                        pc.variables[var] = varpair;
-                else
-                    pc.lv_stack[cvector_size(pc.lv_stack) - 1][var] = varpair;
-            }
-            cvector_pop_back(pc.stack);
-            break;
-        case '!':
-            operand = read_operand(false);
-            if ((var = require_variable_local(operand)) == -1)
-                if ((var = require_variable(operand)) == -1)
-                    die(1, "no %c variable found (! at %d)", operand, start);
-                else
-                    cvector_erase(pc.variables, var);
-            else
-                cvector_erase(pc.lv_stack[cvector_size(pc.lv_stack) - 1], var);
-            break;
-        case '$':
-            operand = read_operand(false);
-            i16 value;
-            if ((var = require_variable_local(operand)) == -1)
-                if ((var = require_variable(operand)) == -1)
-                    die(1, "no %c variable found ($ at %d)", operand, start);
-                else
-                    value = pc.variables[var].value;
-            else
-                value = pc.lv_stack[cvector_size(pc.lv_stack) - 1][var].value;
-            cvector_push_back(pc.stack, value);
-            break;
-        case '&':
-            operand = read_operand(false);
-            if (cvector_size(pc.lv_stack) == 0)
-                die(1, "local variables cannot be created in global scope (& at %d)", start);
-            varpair = (cccl_varpair){.name=operand, .value=0};
-            if (require_variable_local(operand) == -1)
-                cvector_push_back(pc.lv_stack[cvector_size(pc.lv_stack) - 1], varpair);
-            break;
-        case '<':
-            operand = read_operand(false);
-            if ((var = require_variable_local(operand)) == -1)
-                if ((var = require_variable(operand)) == -1)
-                    die(1, "no %c variable found (< at %d)", operand, start);
-                else
-                    printf("%c", pc.variables[var].value);
-            else
-                printf("%c", pc.lv_stack[cvector_size(pc.lv_stack) - 1][var].value);
-            break;
-        case '>':
-            operand = read_operand(false);
-            i16 *to_store;
-            if ((var = require_variable_local(operand)) == -1)
-                if ((var = require_variable(operand)) == -1)
-                    die(1, "no %c variable found (> at %d)", operand, start);
-                else
-                    to_store = &pc.variables[var].value;
-            else
-                to_store = &pc.lv_stack[cvector_size(pc.lv_stack) - 1][var].value;
-            *to_store = getch();
-            break;
-        case '@':
-            operand = read_operand(false);
-            if ((var = require_procedure(operand)) == -1)
-                die(1, "no %c procedure found (@ at %d)", operand, start);
-            pointer = (cccl_pointer){.value=pc.ep, .meta=0};
-            cvector_push_back(pc.ep_stack, pointer);
-            pc.ep = pc.procedures[var].value;
-            break;
-        case '#':
-            if (cvector_size(pc.lv_stack) == 0)
-                exit(0);
-            pc.ep = pc.ep_stack[cvector_size(pc.ep_stack) - 1].value;
-            if (pc.ep_stack[cvector_size(pc.ep_stack) - 1].meta != -1)
-                cvector_pop_back(pc.ep_stack);
-            cvector_pop_back(pc.ep_stack);
-            break;
-        case ':':
-            if (pc.ep_stack[cvector_size(pc.ep_stack) - 1].meta == -1)
-            {
-                die(1, "not in a loop (: at %d)", start);
-            } else if (pc.ep_stack[cvector_size(pc.ep_stack) - 1].meta == 0)
-            {
-                pc.ep = pc.ep_stack[cvector_size(pc.ep_stack) - 1].value;
-                cvector_pop_back(pc.ep_stack);
-                cvector_pop_back(pc.ep_stack);
-            } else
-            {
-                if (pc.ep_stack[cvector_size(pc.ep_stack) - 1].meta > 0)
-                    --pc.ep_stack[cvector_size(pc.ep_stack) - 1].meta;
-                pc.ep = pc.ep_stack[cvector_size(pc.ep_stack) - 2].value;
-            }
-            break;
-        case '}':
-            pc.ep = pc.ep_stack[cvector_size(pc.ep_stack) - 1].value;
-            cvector_pop_back(pc.ep_stack);
-            break;
-        case ')':
-            pc.ep = pc.ep_stack[cvector_size(pc.ep_stack) - 2].value;
-            break;
-        case ']':
-            if (pc.ep_stack[cvector_size(pc.ep_stack) - 1].meta == 0)
-            {
-                pc.ep = pc.ep_stack[cvector_size(pc.ep_stack) - 1].value;
-                cvector_pop_back(pc.ep_stack);
-                cvector_pop_back(pc.ep_stack);
-            } else
-            {
-                --pc.ep_stack[cvector_size(pc.ep_stack) - 1].meta;
-                pc.ep = pc.ep_stack[cvector_size(pc.ep_stack) - 2].value;
-            }
-            break;
-        case '(':
-            pointer = (cccl_pointer){.value=start, .meta=-2};
-            brpair = (cccl_brpair){.pointer=start, .bracket=')'};
-            cvector_push_back(pc.br_stack, brpair);
-            bracket = find_bracket(start);
-            cvector_push_back(pc.ep_stack, pointer);
-            pointer.value = bracket;
-            cvector_push_back(pc.ep_stack, pointer);
-            break;
-        case '?':
-            operand = read_operand(false);
-            if ((var = require_variable_local(operand)) == -1)
-                if ((var = require_variable(operand)) == -1)
-                    die(1, "no %c variable found (? at %d)", operand, start);
-                else
-                    var = pc.variables[var].value;
-            else
-                var = pc.lv_stack[cvector_size(pc.lv_stack) - 1][var].value;
-            if (var != pc.stack[cvector_size(pc.stack) - 1])
-            {
-                brpair = (cccl_brpair){.pointer=start, .bracket='?'};
-                cvector_push_back(pc.br_stack, brpair);
-                bracket = find_bracket(start);
-                pc.ep = bracket;
-            }
-            break;
-        }
-    }
-    printf("Stack: ^^^\n");
-    for (int i = 0; i < cvector_size(pc.stack); ++i)
-        printf("%d\n", pc.stack[i]);
-    printf("Variables:\n");
-    for (int i = 0; i < cvector_size(pc.variables); ++i)
-        printf("%c:%d\n", pc.variables[i].name, pc.variables[i].value);
-    printf("Call stack:\n");
-    for (int i = 0; i < cvector_size(pc.ep_stack); ++i)
-        printf("%d(%d)", pc.ep_stack[i].value, pc.ep_stack[i].meta);
-}
generated by cgit-pink 1.4.1 (git 2.36.1) at 2025-12-08 23:39:56 +0000