Add new features: ternary operator, file IO, string ops, math functions, array ops, system functions

README.md

@@ -28,12 +28,14 @@ A modern, C++-style scripting language designed for ease of use and powerful fun
 - Logical: `&&`, `||`, `!`
 - Compound: `+=`, `-=`, `*=`, `/=`, `%=`
 - Increment/Decrement: `++`, `--`
+- Ternary: `condition ? true_value : false_value`
 
 ### Built-in Functions
-- **Mathematical**: `abs`, `sqrt`, `sin`, `cos`, `tan`, `pow`, `log`, `floor`, `ceil`, `round`
-- **String**: `strcmp`, `strcpy`, `strcat`, `sizeof`
-- **Array**: `arrlen`, `memcpy`, `memcmp`, `malloc`
-- **Utility**: `echo`, `input`, `time`, `random`, `exit`, `assert`
+- **Mathematical**: `abs`, `sqrt`, `sin`, `cos`, `tan`, `asin`, `acos`, `atan`, `atan2`, `pow`, `log`, `log10`, `exp`, `floor`, `ceil`, `round`
+- **String**: `strcmp`, `strcpy`, `strcat`, `strlen`, `strchr`, `strstr`, `tolower`, `toupper`, `sizeof`
+- **Array**: `arrlen`, `memcpy`, `memcmp`, `malloc`, `push`, `pop`, `insert`, `remove`
+- **File IO**: `fopen`, `fclose`, `fread`, `fwrite`, `fgets`, `fputs`
+- **System**: `echo`, `input`, `time`, `random`, `exit`, `assert`, `system`, `getenv`, `sleep`
 
 ## Getting Started
 

src/main.c

@@ -92,7 +92,8 @@ typedef enum {
     TOKEN_CATCH,
     TOKEN_THROW,
     TOKEN_ASTERISK,
-    TOKEN_LABEL
+    TOKEN_LABEL,
+    TOKEN_QUESTION
 } OraTokenType;
 
 typedef struct {
@@ -409,6 +410,7 @@ void tokenize(const char* source) {
             case '!': add_token(TOKEN_NOT, "!"); break;
             case ':': add_token(TOKEN_COLON, ":"); break;
             case '.': add_token(TOKEN_DOT, "."); break;
+            case '?': add_token(TOKEN_QUESTION, "?"); break;
             default: error("Unknown character: '%c'", *p);
         }
         p++;
@@ -786,6 +788,271 @@ double parse_call(const char* func_name) {
             }
         }
         return 0;
+    } else if (strcmp(func_name, "fopen") == 0) {
+        const char* filename = get_string_value();
+        consume(TOKEN_COMMA, "Expected ','");
+        const char* mode = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        for (int i = 0; i < var_count; i++) {
+            if (strcmp(vars[i].name, "__tmp_file_result") == 0) {
+                FILE* fp = fopen(filename, mode);
+                vars[i].value.num_value = (double)(intptr_t)fp;
+                vars[i].value.type = VAL_NUMBER;
+                return 0;
+            }
+        }
+        strncpy(vars[var_count].name, "__tmp_file_result", 63);
+        FILE* fp = fopen(filename, mode);
+        vars[var_count].value.num_value = (double)(intptr_t)fp;
+        vars[var_count].value.type = VAL_NUMBER;
+        var_count++;
+        return 0;
+    } else if (strcmp(func_name, "fclose") == 0) {
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        return (double)fclose(fp);
+    } else if (strcmp(func_name, "fgets") == 0) {
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        char buf[MAX_STRING];
+        if (fgets(buf, MAX_STRING, fp)) {
+            for (int i = 0; i < var_count; i++) {
+                if (strcmp(vars[i].name, "__tmp_str_result") == 0) {
+                    strncpy(vars[i].value.str_value, buf, MAX_STRING - 1);
+                    vars[i].value.str_value[MAX_STRING - 1] = '\0';
+                    vars[i].value.type = VAL_STRING;
+                    return 0;
+                }
+            }
+            strncpy(vars[var_count].name, "__tmp_str_result", 63);
+            strncpy(vars[var_count].value.str_value, buf, MAX_STRING - 1);
+            vars[var_count].value.str_value[MAX_STRING - 1] = '\0';
+            vars[var_count].value.type = VAL_STRING;
+            var_count++;
+        }
+        return 0;
+    } else if (strcmp(func_name, "fputs") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_COMMA, "Expected ','");
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        return (double)fputs(str, fp);
+    } else if (strcmp(func_name, "fread") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        int count = (int)evaluate();
+        consume(TOKEN_COMMA, "Expected ','");
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        Value* arr = find_variable(name);
+        if (!arr) error("Undefined variable: %s", name);
+        if (arr->type != VAL_ARRAY) {
+            arr->type = VAL_ARRAY;
+            arr->arr_size = 0;
+        }
+        double buf[MAX_ARRAY_SIZE];
+        size_t read = fread(buf, sizeof(double), count, fp);
+        for (int i = 0; i < read && arr->arr_size + i < MAX_ARRAY_SIZE; i++) {
+            arr->arr_value[arr->arr_size + i] = buf[i];
+        }
+        arr->arr_size += read;
+        return (double)read;
+    } else if (strcmp(func_name, "fwrite") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        int count = (int)evaluate();
+        consume(TOKEN_COMMA, "Expected ','");
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        Value* arr = find_variable(name);
+        if (!arr || arr->type != VAL_ARRAY) error("Invalid array");
+        size_t written = fwrite(arr->arr_value, sizeof(double), count, fp);
+        return (double)written;
+    } else if (strcmp(func_name, "strlen") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return strlen(str);
+    } else if (strcmp(func_name, "strchr") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_COMMA, "Expected ','");
+        double ch = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        const char* found = strchr(str, (int)ch);
+        return found ? (double)(found - str) : -1;
+    } else if (strcmp(func_name, "strstr") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_COMMA, "Expected ','");
+        const char* substr = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        const char* found = strstr(str, substr);
+        return found ? (double)(found - str) : -1;
+    } else if (strcmp(func_name, "tolower") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        for (int i = 0; i < var_count; i++) {
+            if (strcmp(vars[i].name, "__tmp_str_result") == 0) {
+                strncpy(vars[i].value.str_value, str, MAX_STRING - 1);
+                for (int j = 0; vars[i].value.str_value[j]; j++) {
+                    vars[i].value.str_value[j] = tolower(vars[i].value.str_value[j]);
+                }
+                vars[i].value.type = VAL_STRING;
+                return 0;
+            }
+        }
+        strncpy(vars[var_count].name, "__tmp_str_result", 63);
+        strncpy(vars[var_count].value.str_value, str, MAX_STRING - 1);
+        for (int j = 0; vars[var_count].value.str_value[j]; j++) {
+            vars[var_count].value.str_value[j] = tolower(vars[var_count].value.str_value[j]);
+        }
+        vars[var_count].value.type = VAL_STRING;
+        var_count++;
+        return 0;
+    } else if (strcmp(func_name, "toupper") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        for (int i = 0; i < var_count; i++) {
+            if (strcmp(vars[i].name, "__tmp_str_result") == 0) {
+                strncpy(vars[i].value.str_value, str, MAX_STRING - 1);
+                for (int j = 0; vars[i].value.str_value[j]; j++) {
+                    vars[i].value.str_value[j] = toupper(vars[i].value.str_value[j]);
+                }
+                vars[i].value.type = VAL_STRING;
+                return 0;
+            }
+        }
+        strncpy(vars[var_count].name, "__tmp_str_result", 63);
+        strncpy(vars[var_count].value.str_value, str, MAX_STRING - 1);
+        for (int j = 0; vars[var_count].value.str_value[j]; j++) {
+            vars[var_count].value.str_value[j] = toupper(vars[var_count].value.str_value[j]);
+        }
+        vars[var_count].value.type = VAL_STRING;
+        var_count++;
+        return 0;
+    } else if (strcmp(func_name, "asin") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return asin(val);
+    } else if (strcmp(func_name, "acos") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return acos(val);
+    } else if (strcmp(func_name, "atan") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return atan(val);
+    } else if (strcmp(func_name, "atan2") == 0) {
+        double y = evaluate();
+        consume(TOKEN_COMMA, "Expected ','");
+        double x = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return atan2(y, x);
+    } else if (strcmp(func_name, "log10") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return log10(val);
+    } else if (strcmp(func_name, "exp") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return exp(val);
+    } else if (strcmp(func_name, "system") == 0) {
+        const char* cmd = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return (double)system(cmd);
+    } else if (strcmp(func_name, "getenv") == 0) {
+        const char* name = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        const char* val = getenv(name);
+        if (val) {
+            for (int i = 0; i < var_count; i++) {
+                if (strcmp(vars[i].name, "__tmp_str_result") == 0) {
+                    strncpy(vars[i].value.str_value, val, MAX_STRING - 1);
+                    vars[i].value.str_value[MAX_STRING - 1] = '\0';
+                    vars[i].value.type = VAL_STRING;
+                    return 0;
+                }
+            }
+            strncpy(vars[var_count].name, "__tmp_str_result", 63);
+            strncpy(vars[var_count].value.str_value, val, MAX_STRING - 1);
+            vars[var_count].value.str_value[MAX_STRING - 1] = '\0';
+            vars[var_count].value.type = VAL_STRING;
+            var_count++;
+        }
+        return 0;
+    } else if (strcmp(func_name, "sleep") == 0) {
+        double seconds = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        #ifdef OS_WINDOWS
+            Sleep((DWORD)(seconds * 1000));
+        #else
+            sleep((unsigned int)seconds);
+        #endif
+        return 0;
+    } else if (strcmp(func_name, "push") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        Value* arr = find_variable(name);
+        if (!arr) error("Undefined variable: %s", name);
+        if (arr->type != VAL_ARRAY) {
+            arr->type = VAL_ARRAY;
+            arr->arr_size = 0;
+        }
+        if (arr->arr_size >= MAX_ARRAY_SIZE) {
+            error("Array size exceeds maximum (%d)", MAX_ARRAY_SIZE);
+        }
+        arr->arr_value[arr->arr_size++] = val;
+        return 0;
+    } else if (strcmp(func_name, "pop") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_RPAREN, "Expected ')'");
+        Value* arr = find_variable(name);
+        if (!arr || arr->type != VAL_ARRAY || arr->arr_size == 0) {
+            error("Cannot pop from empty array");
+        }
+        return arr->arr_value[--arr->arr_size];
+    } else if (strcmp(func_name, "insert") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        int index = (int)evaluate();
+        consume(TOKEN_COMMA, "Expected ','");
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        Value* arr = find_variable(name);
+        if (!arr || arr->type != VAL_ARRAY) error("Invalid array");
+        if (index < 0 || index > arr->arr_size) error("Array index out of bounds");
+        if (arr->arr_size >= MAX_ARRAY_SIZE) error("Array full");
+        for (int i = arr->arr_size; i > index; i--) {
+            arr->arr_value[i] = arr->arr_value[i - 1];
+        }
+        arr->arr_value[index] = val;
+        arr->arr_size++;
+        return 0;
+    } else if (strcmp(func_name, "remove") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        int index = (int)evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        Value* arr = find_variable(name);
+        if (!arr || arr->type != VAL_ARRAY) error("Invalid array");
+        if (index < 0 || index >= arr->arr_size) error("Array index out of bounds");
+        double result = arr->arr_value[index];
+        for (int i = index; i < arr->arr_size - 1; i++) {
+            arr->arr_value[i] = arr->arr_value[i + 1];
+        }
+        arr->arr_size--;
+        return result;
     } else {
         int func_idx = find_function(func_name);
         if (func_idx >= 0) {
@@ -1002,8 +1269,19 @@ double parse_logic_or() {
     return left;
 }
 
+double parse_ternary() {
+    double cond = parse_logic_or();
+    if (match(TOKEN_QUESTION)) {
+        double true_val = parse_ternary();
+        consume(TOKEN_COLON, "Expected ':' in ternary expression");
+        double false_val = parse_ternary();
+        return cond != 0 ? true_val : false_val;
+    }
+    return cond;
+}
+
 double evaluate() {
-    return parse_logic_or();
+    return parse_ternary();
 }
 
 void execute_print() {

test_io.txt

@@ -0,0 +1 @@
+Hello World

test_new.ora

@@ -0,0 +1,72 @@
+echo("=== 新功能测试 ===");
+
+echo("");
+echo("=== 三元运算符测试 ===");
+let a = 10;
+let b = 20;
+let max = (a > b) ? a : b;
+echo("max =", max);
+let min = (a < b) ? a : b;
+echo("min =", min);
+
+echo("");
+echo("=== 文件IO测试 ===");
+fopen("test_io.txt", "w");
+fputs("Hello World\n", __tmp_file_result);
+fclose(__tmp_file_result);
+
+fopen("test_io.txt", "r");
+fgets(__tmp_file_result);
+echo("读取第一行:", __tmp_str_result);
+fclose(__tmp_file_result);
+
+echo("");
+echo("=== 字符串函数测试 ===");
+let s = "Hello World";
+echo("strlen(s) =", strlen(s));
+echo("strchr(s, 'W') =", strchr(s, 87));
+echo("strstr(s, 'World') =", strstr(s, "World"));
+
+toupper(s);
+echo("toupper:", __tmp_str_result);
+
+tolower(__tmp_str_result);
+echo("tolower:", __tmp_str_result);
+
+echo("");
+echo("=== 数学函数测试 ===");
+echo("sin(0) =", sin(0));
+echo("cos(0) =", cos(0));
+echo("asin(0) =", asin(0));
+echo("acos(1) =", acos(1));
+echo("atan(0) =", atan(0));
+echo("atan2(1, 0) =", atan2(1, 0));
+echo("log10(100) =", log10(100));
+echo("exp(1) =", exp(1));
+
+echo("");
+echo("=== 数组操作测试 ===");
+let arr = [1, 2, 3];
+echo("初始数组:", arr);
+
+push(arr, 4);
+echo("push后:", arr);
+
+let popped = pop(arr);
+echo("pop出:", popped);
+echo("pop后:", arr);
+
+insert(arr, 1, 99);
+echo("insert后:", arr);
+
+let removed = remove(arr, 1);
+echo("remove出:", removed);
+echo("remove后:", arr);
+
+echo("");
+echo("=== 系统函数测试 ===");
+getenv("PATH");
+echo("PATH长度:", strlen(__tmp_str_result));
+
+echo("");
+echo("所有新功能测试完成!");

website/download/source/Oraset-B-5-source/src/main.c

@@ -92,7 +92,8 @@ typedef enum {
     TOKEN_CATCH,
     TOKEN_THROW,
     TOKEN_ASTERISK,
-    TOKEN_LABEL
+    TOKEN_LABEL,
+    TOKEN_QUESTION
 } OraTokenType;
 
 typedef struct {
@@ -409,6 +410,7 @@ void tokenize(const char* source) {
             case '!': add_token(TOKEN_NOT, "!"); break;
             case ':': add_token(TOKEN_COLON, ":"); break;
             case '.': add_token(TOKEN_DOT, "."); break;
+            case '?': add_token(TOKEN_QUESTION, "?"); break;
             default: error("Unknown character: '%c'", *p);
         }
         p++;
@@ -786,6 +788,271 @@ double parse_call(const char* func_name) {
             }
         }
         return 0;
+    } else if (strcmp(func_name, "fopen") == 0) {
+        const char* filename = get_string_value();
+        consume(TOKEN_COMMA, "Expected ','");
+        const char* mode = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        for (int i = 0; i < var_count; i++) {
+            if (strcmp(vars[i].name, "__tmp_file_result") == 0) {
+                FILE* fp = fopen(filename, mode);
+                vars[i].value.num_value = (double)(intptr_t)fp;
+                vars[i].value.type = VAL_NUMBER;
+                return 0;
+            }
+        }
+        strncpy(vars[var_count].name, "__tmp_file_result", 63);
+        FILE* fp = fopen(filename, mode);
+        vars[var_count].value.num_value = (double)(intptr_t)fp;
+        vars[var_count].value.type = VAL_NUMBER;
+        var_count++;
+        return 0;
+    } else if (strcmp(func_name, "fclose") == 0) {
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        return (double)fclose(fp);
+    } else if (strcmp(func_name, "fgets") == 0) {
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        char buf[MAX_STRING];
+        if (fgets(buf, MAX_STRING, fp)) {
+            for (int i = 0; i < var_count; i++) {
+                if (strcmp(vars[i].name, "__tmp_str_result") == 0) {
+                    strncpy(vars[i].value.str_value, buf, MAX_STRING - 1);
+                    vars[i].value.str_value[MAX_STRING - 1] = '\0';
+                    vars[i].value.type = VAL_STRING;
+                    return 0;
+                }
+            }
+            strncpy(vars[var_count].name, "__tmp_str_result", 63);
+            strncpy(vars[var_count].value.str_value, buf, MAX_STRING - 1);
+            vars[var_count].value.str_value[MAX_STRING - 1] = '\0';
+            vars[var_count].value.type = VAL_STRING;
+            var_count++;
+        }
+        return 0;
+    } else if (strcmp(func_name, "fputs") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_COMMA, "Expected ','");
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        return (double)fputs(str, fp);
+    } else if (strcmp(func_name, "fread") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        int count = (int)evaluate();
+        consume(TOKEN_COMMA, "Expected ','");
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        Value* arr = find_variable(name);
+        if (!arr) error("Undefined variable: %s", name);
+        if (arr->type != VAL_ARRAY) {
+            arr->type = VAL_ARRAY;
+            arr->arr_size = 0;
+        }
+        double buf[MAX_ARRAY_SIZE];
+        size_t read = fread(buf, sizeof(double), count, fp);
+        for (int i = 0; i < read && arr->arr_size + i < MAX_ARRAY_SIZE; i++) {
+            arr->arr_value[arr->arr_size + i] = buf[i];
+        }
+        arr->arr_size += read;
+        return (double)read;
+    } else if (strcmp(func_name, "fwrite") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        int count = (int)evaluate();
+        consume(TOKEN_COMMA, "Expected ','");
+        double fp_val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        FILE* fp = (FILE*)(intptr_t)fp_val;
+        Value* arr = find_variable(name);
+        if (!arr || arr->type != VAL_ARRAY) error("Invalid array");
+        size_t written = fwrite(arr->arr_value, sizeof(double), count, fp);
+        return (double)written;
+    } else if (strcmp(func_name, "strlen") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return strlen(str);
+    } else if (strcmp(func_name, "strchr") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_COMMA, "Expected ','");
+        double ch = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        const char* found = strchr(str, (int)ch);
+        return found ? (double)(found - str) : -1;
+    } else if (strcmp(func_name, "strstr") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_COMMA, "Expected ','");
+        const char* substr = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        const char* found = strstr(str, substr);
+        return found ? (double)(found - str) : -1;
+    } else if (strcmp(func_name, "tolower") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        for (int i = 0; i < var_count; i++) {
+            if (strcmp(vars[i].name, "__tmp_str_result") == 0) {
+                strncpy(vars[i].value.str_value, str, MAX_STRING - 1);
+                for (int j = 0; vars[i].value.str_value[j]; j++) {
+                    vars[i].value.str_value[j] = tolower(vars[i].value.str_value[j]);
+                }
+                vars[i].value.type = VAL_STRING;
+                return 0;
+            }
+        }
+        strncpy(vars[var_count].name, "__tmp_str_result", 63);
+        strncpy(vars[var_count].value.str_value, str, MAX_STRING - 1);
+        for (int j = 0; vars[var_count].value.str_value[j]; j++) {
+            vars[var_count].value.str_value[j] = tolower(vars[var_count].value.str_value[j]);
+        }
+        vars[var_count].value.type = VAL_STRING;
+        var_count++;
+        return 0;
+    } else if (strcmp(func_name, "toupper") == 0) {
+        const char* str = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        for (int i = 0; i < var_count; i++) {
+            if (strcmp(vars[i].name, "__tmp_str_result") == 0) {
+                strncpy(vars[i].value.str_value, str, MAX_STRING - 1);
+                for (int j = 0; vars[i].value.str_value[j]; j++) {
+                    vars[i].value.str_value[j] = toupper(vars[i].value.str_value[j]);
+                }
+                vars[i].value.type = VAL_STRING;
+                return 0;
+            }
+        }
+        strncpy(vars[var_count].name, "__tmp_str_result", 63);
+        strncpy(vars[var_count].value.str_value, str, MAX_STRING - 1);
+        for (int j = 0; vars[var_count].value.str_value[j]; j++) {
+            vars[var_count].value.str_value[j] = toupper(vars[var_count].value.str_value[j]);
+        }
+        vars[var_count].value.type = VAL_STRING;
+        var_count++;
+        return 0;
+    } else if (strcmp(func_name, "asin") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return asin(val);
+    } else if (strcmp(func_name, "acos") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return acos(val);
+    } else if (strcmp(func_name, "atan") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return atan(val);
+    } else if (strcmp(func_name, "atan2") == 0) {
+        double y = evaluate();
+        consume(TOKEN_COMMA, "Expected ','");
+        double x = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return atan2(y, x);
+    } else if (strcmp(func_name, "log10") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return log10(val);
+    } else if (strcmp(func_name, "exp") == 0) {
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return exp(val);
+    } else if (strcmp(func_name, "system") == 0) {
+        const char* cmd = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        return (double)system(cmd);
+    } else if (strcmp(func_name, "getenv") == 0) {
+        const char* name = get_string_value();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        const char* val = getenv(name);
+        if (val) {
+            for (int i = 0; i < var_count; i++) {
+                if (strcmp(vars[i].name, "__tmp_str_result") == 0) {
+                    strncpy(vars[i].value.str_value, val, MAX_STRING - 1);
+                    vars[i].value.str_value[MAX_STRING - 1] = '\0';
+                    vars[i].value.type = VAL_STRING;
+                    return 0;
+                }
+            }
+            strncpy(vars[var_count].name, "__tmp_str_result", 63);
+            strncpy(vars[var_count].value.str_value, val, MAX_STRING - 1);
+            vars[var_count].value.str_value[MAX_STRING - 1] = '\0';
+            vars[var_count].value.type = VAL_STRING;
+            var_count++;
+        }
+        return 0;
+    } else if (strcmp(func_name, "sleep") == 0) {
+        double seconds = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        #ifdef OS_WINDOWS
+            Sleep((DWORD)(seconds * 1000));
+        #else
+            sleep((unsigned int)seconds);
+        #endif
+        return 0;
+    } else if (strcmp(func_name, "push") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        Value* arr = find_variable(name);
+        if (!arr) error("Undefined variable: %s", name);
+        if (arr->type != VAL_ARRAY) {
+            arr->type = VAL_ARRAY;
+            arr->arr_size = 0;
+        }
+        if (arr->arr_size >= MAX_ARRAY_SIZE) {
+            error("Array size exceeds maximum (%d)", MAX_ARRAY_SIZE);
+        }
+        arr->arr_value[arr->arr_size++] = val;
+        return 0;
+    } else if (strcmp(func_name, "pop") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_RPAREN, "Expected ')'");
+        Value* arr = find_variable(name);
+        if (!arr || arr->type != VAL_ARRAY || arr->arr_size == 0) {
+            error("Cannot pop from empty array");
+        }
+        return arr->arr_value[--arr->arr_size];
+    } else if (strcmp(func_name, "insert") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        int index = (int)evaluate();
+        consume(TOKEN_COMMA, "Expected ','");
+        double val = evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        Value* arr = find_variable(name);
+        if (!arr || arr->type != VAL_ARRAY) error("Invalid array");
+        if (index < 0 || index > arr->arr_size) error("Array index out of bounds");
+        if (arr->arr_size >= MAX_ARRAY_SIZE) error("Array full");
+        for (int i = arr->arr_size; i > index; i--) {
+            arr->arr_value[i] = arr->arr_value[i - 1];
+        }
+        arr->arr_value[index] = val;
+        arr->arr_size++;
+        return 0;
+    } else if (strcmp(func_name, "remove") == 0) {
+        consume(TOKEN_IDENTIFIER, "Expected array variable");
+        const char* name = tokens[current_token - 1].value;
+        consume(TOKEN_COMMA, "Expected ','");
+        int index = (int)evaluate();
+        consume(TOKEN_RPAREN, "Expected ')'");
+        Value* arr = find_variable(name);
+        if (!arr || arr->type != VAL_ARRAY) error("Invalid array");
+        if (index < 0 || index >= arr->arr_size) error("Array index out of bounds");
+        double result = arr->arr_value[index];
+        for (int i = index; i < arr->arr_size - 1; i++) {
+            arr->arr_value[i] = arr->arr_value[i + 1];
+        }
+        arr->arr_size--;
+        return result;
     } else {
         int func_idx = find_function(func_name);
         if (func_idx >= 0) {
@@ -1002,8 +1269,19 @@ double parse_logic_or() {
     return left;
 }
 
+double parse_ternary() {
+    double cond = parse_logic_or();
+    if (match(TOKEN_QUESTION)) {
+        double true_val = parse_ternary();
+        consume(TOKEN_COLON, "Expected ':' in ternary expression");
+        double false_val = parse_ternary();
+        return cond != 0 ? true_val : false_val;
+    }
+    return cond;
+}
+
 double evaluate() {
-    return parse_logic_or();
+    return parse_ternary();
 }
 
 void execute_print() {