Change prompt cursor

src/builtins/local.c

@@ -11,6 +11,7 @@
 #include <string.h>
 #include <unistd.h>
 
+#include "builtins_handler.h"
 #include "common.h"
 #include "u_mem.h"
 #include "u_str.h"

src/common.h

@@ -7,7 +7,7 @@
 
 #ifndef COMMON_H
     #define COMMON_H
-    #include "exec.h"
+    #include <stdint.h>
 
     #define PROMPT_HEADER "┌─["
     #define IF_PROMPT "if? "
@@ -17,5 +17,9 @@ enum {
     RETURN_FAILURE = 1
 };
 
-void free_everything(exec_ctx_t *exec_ctx);
+typedef struct {
+    uint8_t flags;
+    char *script_file;
+    char *cmd;
+} opt_t;
 #endif /* COMMON_H */

src/main.c

@@ -5,12 +5,52 @@
 ** _
 */
 
+#include <getopt.h>
+#include <stdlib.h>
+
+#include "common.h"
 #include "debug.h"
 #include "shell.h"
 
-int main(int ac __attribute__((unused)), char **av __attribute__((unused)),
-    char **env)
+const char OPT_FLAGS[] = "hc:";
+
+static
+void print_usages(FILE *file, char *bin)
 {
-    U_DEBUG_MSG("Debug mode activated.\n");
-    return shell(env);
+    fprintf(file, "Usage: %s [-c command] [-dixv]"
+        " [file]\n", bin);
+}
+
+static
+bool parse_args(opt_t *opt, int ac, char **av)
+{
+    for (int o = getopt(ac, av, OPT_FLAGS); o != -1;
+        o = getopt(ac, av, OPT_FLAGS)) {
+        switch (o) {
+            case 'h':
+                exit((print_usages(stdout, av[0]), RETURN_SUCCESS));
+            case 'c':
+                opt->cmd = optarg;
+                break;
+            default:
+                return print_usages(stderr, av[0]), false;
+        }
+    }
+    if (optind < ac) {
+        opt->script_file = av[optind];
+        U_DEBUG("Script file [%s]\n", opt->script_file);
+    } else {
+        U_DEBUG_MSG("No script file provided.\n");
+    }
+    return true;
+}
+
+int main(int ac, char **av, char **env)
+{
+    opt_t opt = { 0, .script_file = nullptr, .cmd = nullptr };
+
+    U_DEBUG_MSG("Debug mode activated.\n");
+    if (!parse_args(&opt, ac, av))
+        return RETURN_FAILURE;
+    return shell(&opt, env);
 }

src/repl.c

@@ -45,6 +45,7 @@ void init_shell_repl(exec_ctx_t *exec_ctx)
     signal(SIGINT, SIG_IGN);
     exec_ctx->is_running = true;
     if (isatty(STDIN_FILENO)) {
+        WRITE_CONST(STDOUT_FILENO, BLINKING_VERTICAL_CURSOR);
         tcgetattr(STDIN_FILENO, &repl_settings);
         exec_ctx->saved_term_settings = repl_settings;
         repl_settings.c_iflag = IXON;

src/shell.c

@@ -20,6 +20,7 @@
 #include "repl.h"
 #include "shell.h"
 #include "u_str.h"
+#include "utils.h"
 
 __attribute__((unused))
 static
@@ -119,7 +120,7 @@ bool error_in_init(exec_ctx_t *exec_ctx)
     return false;
 }
 
-int shell(char **env_ptr)
+int shell(opt_t *opt, char **env_ptr)
 {
     alias_t alias = init_alias();
     env_t env = parse_env(env_ptr);

src/shell.h

@@ -7,6 +7,7 @@
 
 #ifndef SHELL_H
     #define SHELL_H
+    #include "common.h"
 
 typedef struct {
     char **cmd_history;
@@ -14,5 +15,5 @@ typedef struct {
     char *last_chdir;
 } history_t;
 
-int shell(char **env);
+int shell(opt_t *opt, char **env);
 #endif /* SHELL_H */

src/utils.h

@@ -9,10 +9,12 @@
 #ifndef UTILS_H
     #define UTILS_H
     #include "history.h"
+    #include "exec.h"
 
 char *strn_to_ndup(int start, int size, char *str);
 bool is_a_token(char *str, int index_str);
 char *cat_in_str(his_variable_t *his_variable, char *str, char *cpy);
 int len_array(char **array);
 char *insert_str(const char *base, const char *insert, size_t pos);
+void free_everything(exec_ctx_t *exec_ctx);
 #endif /* UTILS_H */

src/vt100_esc_codes.h

@@ -11,6 +11,9 @@
     #define ESC "\033"
     #define CFMT(n) ESC "[" #n "m"
 
+    // special
+    #define BLINKING_VERTICAL_CURSOR ESC "[5 q"
+
     // move
     #define MOVE_RIGHT(n) ESC "[" #n "C"