first working version

cmd_parser/cmd_parser.c

@@ -1,6 +1,89 @@
+#include "string.h"
+#include "stdint.h"
+
 #include "cmd_parser.h"
 
-void cmd_parse(char* msg)
-{
+static const cmd_t **cmd_array;
+static uint8_t cmd_array_size;
 
+void cmd_parser_init(const cmd_t *commands[], uint8_t size)
+{
+    cmd_array = commands;
+    cmd_array_size = size;
+}
+
+void msg_parse(char *msg)
+{
+    char *msgptr, *submsgptr;
+    parser_t parser = NULL;
+    result_t result = CMD_OK;
+    char key = 0;
+
+    char *token = strtok_r(msg, " ", &msgptr);
+    if (token[0] == '?')
+    {
+        // help message
+    }
+
+    for (uint8_t i = 0; i < cmd_array_size; i++)
+    {
+        if (strcmp(token, cmd_array[i]->name) == 0)
+        {
+            parser = cmd_array[i]->parser;
+            break;
+        }
+    }
+
+    if (parser == NULL)
+    {
+        return;
+    }
+
+    for (token = strtok_r(NULL, " ", &msgptr); token != NULL; token = strtok_r(NULL, " ", &msgptr))
+    {
+        if (token[0] == '-')
+        {
+            key = token[1];
+            result = parser(key, NULL);
+            if (strlen(token) > 2)
+            {
+                token = token + 2;
+            }
+        }
+
+        if (token[0] != '-')
+        {
+            switch (result)
+            {
+            case CMD_VALUE_REQ:
+                result = parser(key, token);
+                break;
+            case CMD_MULTIVAL_REQ:
+                for (char *subtoken = strtok_r(token, ", ", &submsgptr); subtoken != NULL; subtoken = strtok_r(NULL, ",", &submsgptr))
+                {
+                    if (parser(key, subtoken) == CMD_UNKNOWN)
+                    {
+                        result = parser(CMDP_KEY_ARG, subtoken);
+                    }
+                }
+                break;
+            default:
+                result = parser(CMDP_KEY_ARG, token);
+                break;
+            }
+        }
+        if (result == CMD_UNKNOWN)
+        {
+            break;
+        }
+    }
+
+    if (result != CMD_UNKNOWN)
+    {
+        parser(CMDP_KEY_DONE, NULL);
+    }
+    else
+    {
+        parser(CMDP_KEY_STOP, NULL);
+    }
 }

cmd_parser/cmd_parser.h

@@ -1,6 +1,24 @@
 #pragma once
 
-typedef void(*help_filter)(char key, const char *text);
-// void parser (int key, char *arg, struct argp_state *state);
+#define CMDP_KEY_DONE 1
+#define CMDP_KEY_ARG 2
+#define CMDP_KEY_STOP 3
 
-void cmd_parse(char* msg);
+typedef enum
+{
+    CMD_OK,
+    CMD_VALUE_REQ,
+    CMD_MULTIVAL_REQ,
+    CMD_UNKNOWN,
+} result_t;
+
+typedef result_t (*parser_t)(char key, char *arg);
+
+typedef struct
+{
+    char *name;
+    parser_t parser;
+} cmd_t;
+
+void cmd_parser_init(const cmd_t *commands[], uint8_t size);
+void msg_parse(char *msg);

cmd_parser/cmd_parser2.h

@@ -0,0 +1,59 @@
+#pragma once
+#include "main.h"
+
+#define CMDP_KEY_ARG 1
+
+typedef void (*help_filter)(char key, const char *text);
+// key = opt_id, arg = value or NULL
+// key = CMDP_KEY_ARG, arg = id_arg or token
+typedef enum
+{
+	CMD_NULL,
+    CMD_OK,
+    CMD_VALUE_REQ,
+    CMD_MULTIVAL_REQ,
+    CMD_UNKNOWN,
+} result_t;
+
+typedef result_t (*parser)(char key, char *arg);
+
+typedef enum
+{
+	NO_VALUE = 0,
+	SINGLE_VALE = 1,
+	MULTI_VALUE = 2,
+	NOT_OPTIONAL = 4,
+} option_flags_t;
+
+typedef const struct
+{
+	uint8_t opt_id;
+	char *name;
+	char *description;
+	option_flags_t flags;
+} option_t;
+
+typedef const struct
+{
+	char *name;
+	uint8_t arg_id;
+	char *description;
+	option_t *options;
+	uint8_t opt_num;
+	// parser arg_parser;
+} argument_t;
+
+typedef const struct
+{
+	char *name;
+	char *description;
+	argument_t *arguments;
+	uint8_t arg_num;
+	option_t *options;
+	uint8_t opt_num;
+	parser cmd_parser;
+} cmd_parser_t;
+
+void cmd_parser_init(cmd_parser_t* commands[], uint8_t size);
+// void cmd_parse(char *msg, parser parser);
+void cmd_parse(char *msg);