added symbols to visualization

src/slime.h

@@ -3,6 +3,7 @@
 #define _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_DEPRECATE
 #include <stdio.h>
+#include <time.h>
 #include <string.h>
 #include <cmath>
 #include <ctype.h>

src/visualization.cpp

@@ -1,7 +1,17 @@
 proc visualize_lisp_machine() -> void {
-    const int padding = 30;
+    fprintf(stderr, "Drawing visualization...");
+    defer {
+        fprintf(stderr, "Done!\n");
+    };
+
+    const int padding = 40;
     const int margin  = 20;
 
+    const char* draw_text_template    = "  <text x='%d' y='%d' font-size='20' font-family='monospace'>\n    %s\n  </text>\n";
+    const char* draw_integer_template = "  <text x='%d' y='%d' font-size='20' font-family='monospace'>\n    %d\n  </text>\n";
+    const char* draw_float_template   = "  <text x='%d' y='%d' font-size='20' font-family='monospace'>\n    %012.6f\n  </text>\n";
+
+
     FILE *f = fopen("visualization.svg", "w");
     defer {
         fclose(f);
@@ -18,27 +28,293 @@ proc visualize_lisp_machine() -> void {
         write_x = 0,
         write_y = 0;
 
+
+    proc draw_margin = [&](int count = 1) {
+        write_x += margin * count;
+    };
+    proc draw_new_line = [&](int count = 1) {
+        write_x = 0;
+        write_y += 25 * count;
+    };
     proc draw_text = [&](const char* text) {
-        int text_width  = 12 * strlen(text);
-        int text_height = 12;
+        // take care of escaping sensitive chars
+        int text_length = 0;
+        int extra_needed_chars = 0;
+        char* new_text;
+
+        char source;
+        while ((source = text[text_length++]) != '\0') {
+            switch (source) {
+            case '<':
+            case '>':
+                extra_needed_chars += 3;
+                break;
+            case '&':
+                extra_needed_chars += 4;
+                break;
+            case '\'':
+            case '"':
+                extra_needed_chars += 5;
+            }
+        }
+        // if we need to replace some chars
+        if (extra_needed_chars > 0) {
+            new_text = (char*)malloc((text_length + extra_needed_chars) * sizeof(char));
+
+            int index_in_text     = 0,
+                index_in_new_text = 0;
+
+            char source;
+            while ((source = text[index_in_text++]) != '\0') {
+                switch (source) {
+                case '<':
+                    new_text[index_in_new_text++] = '&';
+                    new_text[index_in_new_text++] = 'l';
+                    new_text[index_in_new_text++] = 't';
+                    new_text[index_in_new_text++] = ';';
+                    break;
+                case '>':
+                    new_text[index_in_new_text++] = '&';
+                    new_text[index_in_new_text++] = 'g';
+                    new_text[index_in_new_text++] = 't';
+                    new_text[index_in_new_text++] = ';';
+                    break;
+                case '&':
+                    new_text[index_in_new_text++] = '&';
+                    new_text[index_in_new_text++] = 'a';
+                    new_text[index_in_new_text++] = 'm';
+                    new_text[index_in_new_text++] = 'p';
+                    new_text[index_in_new_text++] = ';';
+                    break;
+                case '"':
+                    new_text[index_in_new_text++] = '&';
+                    new_text[index_in_new_text++] = 'q';
+                    new_text[index_in_new_text++] = 'u';
+                    new_text[index_in_new_text++] = 'o';
+                    new_text[index_in_new_text++] = 't';
+                    new_text[index_in_new_text++] = ';';
+                    break;
+                case '\'':
+                    new_text[index_in_new_text++] = '&';
+                    new_text[index_in_new_text++] = 'a';
+                    new_text[index_in_new_text++] = 'p';
+                    new_text[index_in_new_text++] = 'o';
+                    new_text[index_in_new_text++] = 's';
+                    new_text[index_in_new_text++] = ';';
+                    break;
+                default:
+                    new_text[index_in_new_text++] = source;
+                }
+            }
+            new_text[index_in_new_text] = '\0';
+        }
+
+        int text_width  = 12 * text_length;
 
         if (write_x + text_width > max_x) max_x = write_x + text_width;
         if (write_y > max_y) max_y = write_y;
 
-        fprintf(f,
-                "  <text x='%d' y='%d' font-size='20' "
-                "font-family='monospace'>\n"
-                "    %s"
-                "\n  </text>\n", write_x, write_y, text);
+        if (extra_needed_chars) {
+            fprintf(f, draw_text_template, write_x, write_y, new_text);
+            free(new_text);
+        } else {
+            fprintf(f, draw_text_template, write_x, write_y, text);
+        }
+
+        write_x += text_width;
+    };
+    proc draw_integer = [&](int number) {
+        int text_width  = 12 * ((int)log10(number)+1);
+
+        if (write_x + text_width > max_x) max_x = write_x + text_width;
+        if (write_y > max_y) max_y = write_y;
+
+        fprintf(f, draw_integer_template, write_x, write_y, number);
+
+        write_x += text_width;
+    };
+    proc draw_float = [&](float number) {
+        int text_width  = 12 * 12;
+
+        if (write_x + text_width > max_x) max_x = write_x + text_width;
+        if (write_y > max_y) max_y = write_y;
+
+        fprintf(f, draw_float_template, write_x, write_y, number);
 
         write_x += text_width;
     };
 
     proc draw_header = [&]() {
+        proc draw_separator = [&]() {
+            draw_margin();
+            draw_text("|");
+            draw_margin();
+        };
+
+        time_t t = time(NULL);
+        struct tm tm = *localtime(&t);
+
         write_y = 12;
-        // draw_text("ASD");
-        // write_x += margin;
-        draw_text("doeun");
+
+        // -------------------
+        //     Date
+        // -------------------
+        char date[12];
+        snprintf(date, 12, "%02d.%02d.%d", tm.tm_mday, tm.tm_mon + 1, tm.tm_year + 1900);
+
+        draw_text("Date: ");
+        draw_text(date);
+
+        draw_separator();
+
+        // -------------------
+        //     Time
+        // -------------------
+        char time[12];
+        snprintf(time, 12, "%02d:%02d:%02d", tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+        draw_text("Time: ");
+        draw_text(time);
+
+        draw_separator();
+
+        // -------------------
+        //     String Memory
+        // -------------------
+        draw_new_line();
+
+        int free_string_memory = Memory::next_free_spot_in_string_memory - Memory::string_memory;
+        for (int i = 0; i < Memory::free_spots_in_string_memory->next_index; ++i) {
+            free_string_memory += ((String*)(Memory::free_spots_in_string_memory->data[i]))->length;
+        }
+        int used_string_memory = Memory::string_memory_size - free_string_memory;
+
+        draw_text("String Memory:");
+        draw_margin();
+        draw_text("[allocated chars] ");
+        draw_integer(Memory::string_memory_size);
+        draw_margin();
+        draw_text("[free] ");
+        draw_integer(free_string_memory);
+        draw_margin();
+        draw_text("[used] ");
+        draw_integer(used_string_memory);
+        draw_margin();
+        draw_text("[%free] ");
+        draw_float(100.0f * free_string_memory / Memory::string_memory_size);
+        draw_margin();
+        draw_text("[%used] ");
+        draw_float(100.0f * used_string_memory / Memory::string_memory_size);
+
+        draw_separator();
+        draw_new_line();
+
+        // -------------------
+        //     Object Memory
+        // -------------------
+
+        int free_object_memory_cells = Memory::object_memory_size - (Memory::next_index_in_object_memory - Memory::free_spots_in_object_memory->next_index);
+        int used_object_memory_cells = Memory::next_index_in_object_memory - Memory::free_spots_in_object_memory->next_index;
+
+        draw_text("Object Memory:");
+        draw_margin();
+        draw_text("[#allocated] ");
+        draw_integer(Memory::object_memory_size);
+        draw_margin();
+        draw_text("[#free] ");
+        draw_integer(free_object_memory_cells);
+        draw_margin();
+        draw_text("[#used] ");
+        draw_integer(used_object_memory_cells);
+        draw_margin();
+        draw_text("[%free] ");
+        draw_float(100.0f * free_object_memory_cells / Memory::object_memory_size);
+        draw_margin();
+        draw_text("[%used] ");
+        draw_float(100.0f * used_object_memory_cells / Memory::object_memory_size);
+
+        draw_separator();
+
+        draw_new_line();
+        draw_new_line();
+        draw_new_line();
+    };
+    proc draw_symbols_keywords_and_numbers = [&]() {
+        Lisp_Object_Array_List* symbols  = create_Lisp_Object_array_list();
+        Lisp_Object_Array_List* keywords = create_Lisp_Object_array_list();
+        Lisp_Object_Array_List* numbers  = create_Lisp_Object_array_list();
+        Lisp_Object_Array_List* strings  = create_Lisp_Object_array_list();
+        Lisp_Object_Array_List* pairs    = create_Lisp_Object_array_list();
+
+        // loop over all used memory
+        for (int i = 0; i < Memory::next_index_in_object_memory; ++i) {
+            for (int j = 0; j < Memory::free_spots_in_object_memory->next_index; ++j) {
+                if (i == Memory::free_spots_in_object_memory->data[j])
+                    goto next;
+            }
+
+            switch (Memory::get_type(Memory::object_memory+i)) {
+            case Lisp_Object_Type::Symbol:  append_to_array_list(symbols,  Memory::object_memory+i); break;
+            case Lisp_Object_Type::String:  append_to_array_list(strings,  Memory::object_memory+i); break;
+            case Lisp_Object_Type::Keyword: append_to_array_list(keywords, Memory::object_memory+i); break;
+            case Lisp_Object_Type::Number : append_to_array_list(numbers,  Memory::object_memory+i); break;
+            case Lisp_Object_Type::Pair :   append_to_array_list(pairs,    Memory::object_memory+i); break;
+            }
+
+          next: ;
+        }
+
+        draw_text("Memory Contents:");
+        draw_new_line();
+        draw_new_line();
+
+        int start_x = write_x,
+            start_y = write_y;
+
+        draw_text("Symbols: ");
+        draw_integer(symbols->next_index);
+
+        for (int i = 0; i < symbols->next_index; ++i) {
+            draw_new_line();
+            write_x = start_x;
+
+            draw_text(&symbols->data[i]->value.identifier->data);
+        }
+
+
+        write_x = start_x + 300;
+        write_y = start_y;
+
+        draw_text("Keywords: ");
+        draw_integer(keywords->next_index);
+
+        for (int i = 0; i < keywords->next_index; ++i) {
+            draw_new_line();
+            write_x = start_x + 300;
+
+            draw_text(":");
+            draw_text(&keywords->data[i]->value.identifier->data);
+        }
+
+
+
+        write_x = start_x + 600;
+        write_y = start_y;
+
+        draw_text("Numbers: ");
+        draw_integer(numbers->next_index);
+
+        write_x = start_x + 900;
+        write_y = start_y;
+
+        draw_text("Strings: ");
+        draw_integer(strings->next_index);
+
+        write_x = start_x + 1200;
+        write_y = start_y;
+
+        draw_text("Pairs: ");
+        draw_integer(pairs->next_index);
 
     };
 
@@ -50,6 +326,7 @@ proc visualize_lisp_machine() -> void {
             ">\n\n", -padding, -padding, 0, 0);
 
     draw_header();
+    draw_symbols_keywords_and_numbers();
 
     fprintf(f, "\n\n</svg>");