/* src/client/command_db.c */
+#define _POSIX_C_SOURCE 200809L /* strdup() */
#include "command_db.h"
#include <stddef.h> /* NULL */
-#include <stdint.h> /* uint8_t, uint32_t */
-#include <stdio.h> /* FILE, sprintf() */
+#include <stdint.h> /* uint8_t */
#include <stdlib.h> /* free() */
-#include <string.h> /* memset(), strlen(), strcmp() */
-#include "../common/readwrite.h" /* try_fopen(),try_fclose(),textfile_sizes() */
-#include "../common/rexit.h" /* exit_trouble() */
+#include <string.h> /* memset(), strcmp(), strdup() */
+#include "../common/parse_file.h" /* EDIT_STARTED, parse_file(), set_val(),
+ * token_from_line(), err_line(),
+ * finalize_by_readyflag()
+ */
#include "../common/try_malloc.h" /* try_malloc() */
-#include "err_try_fgets.h" /* reset_err_try_fgets_counter() */
-#include "misc.h" /* array_append() */
+#include "array_append.h" /* array_append() */
#include "world.h" /* global world */
#include "cleanup.h" /* set_cleanup_flag() */
-/* Helper to init_command_db(). */
-static void write_line_to_target(char ** target, char * line)
+/* Flags for defining state of command DB config file entries. */
+enum cmd_flag
{
- char * f_name = "write_line_to_target()";
- *target = try_malloc(strlen(line), f_name);
- line[strlen(line) - 1] = '\0';
- sprintf(*target, "%s", line);
+ DESC_SET = 0x02,
+ SERVERCMD_SET = 0x04,
+ SERVERARG_SET = 0x08,
+ READY_CMD = DESC_SET
+};
+
+
+
+/* Get tokens from "context" and, by their order (in the individual context and
+ * in subsequent calls of this function), interpret them as data to write into
+ * the CommandDB.
+ *
+ * Individual CommandDB entries are put together line by line before being
+ * written. Writing happens after all necessary members of an entry have been
+ * assembled, and when additionally a) a new entry is started by a
+ * context->token0 of "COMMAND"; or b) a NULL context->token0 is passed.
+ */
+static void tokens_into_entries(char * token0, char * token1);
+
+
+
+static void tokens_into_entries(char * token0, char * token1)
+{
+ char * f_name = "tokens_into_entries()";
+ char * str_cmd = "COMMAND";
+ static uint8_t cmd_flags = READY_CMD;
+ static struct Command * cmd = NULL;
+ if (!token0 || !strcmp(token0, str_cmd))
+ {
+ finalize_by_readyflag(&cmd_flags, READY_CMD);
+ if (cmd)
+ {
+ array_append(world.commandDB.n, sizeof(struct Command),
+ (void *) cmd, (void **) &world.commandDB.cmds);
+ world.commandDB.n++;
+ free(cmd);
+ cmd = NULL;
+ }
+ }
+ err_line(token0 && NULL != token_from_line(NULL), "Too many values.");
+ if (token0 && !strcmp(token0, str_cmd))
+ {
+ char * err_uniq = "Declaration of ID already used.";
+ cmd_flags = EDIT_STARTED;
+ cmd = try_malloc(sizeof(struct Command), f_name);
+ memset(cmd, 0, sizeof(struct Command));
+ cmd->dsc_short = strdup(token1);
+ err_line(NULL != get_command(cmd->dsc_short), err_uniq);
+ }
+ else if ( token0
+ && !( set_val(token0, token1, "DESCRIPTION", &cmd_flags,
+ DESC_SET, 's', (char *) &cmd->dsc_long)
+ || set_val(token0, token1, "SERVER_COMMAND", &cmd_flags,
+ SERVERCMD_SET, 's', (char *) &cmd->server_msg)
+ || set_val(token0, token1, "SERVER_ARGUMENT", &cmd_flags,
+ SERVERARG_SET, 'c', (char *) &cmd->arg)))
+ {
+ err_line(1, "Unknown arguemnt.");
+ }
}
extern void init_command_db()
{
- char * f_name = "init_command_db()";
- char * context = "Failed reading command DB file. ";
- FILE * file = try_fopen(world.path_commands, "r", f_name);
- uint32_t linemax = textfile_sizes(file, NULL);
- char line[linemax + 1];
- reset_err_try_fgets_counter();
- uint8_t i = 0;
- while (1)
- {
- int test_for_end = try_fgetc(file, f_name);
- if (EOF == test_for_end || '\n' == test_for_end)
- {
- break;
- }
- exit_trouble(EOF == ungetc(test_for_end, file), f_name, "ungetc()");
- struct Command cmd;
- memset(&cmd, 0, sizeof(struct Command));
- err_try_fgets(line, linemax, file, context, "nf");
- write_line_to_target(&cmd.dsc_short, line);
- err_try_fgets(line, linemax, file, context, "0nf");
- write_line_to_target(&cmd.dsc_long, line);
- err_try_fgets(line, linemax, file, context, "0nf");
- if (strcmp(world.delim, line))
- {
- write_line_to_target(&cmd.server_msg, line);
- err_try_fgets(line, linemax, file, context, "0nfs");
- cmd.arg = line[0];
- err_try_fgets(line, linemax, file, context, "d");
- }
- array_append(i, sizeof(struct Command), (void *) &cmd,
- (void **) &world.commandDB.cmds);
- i++;
- }
- try_fclose(file, f_name);
- world.commandDB.n = i;
+ parse_file(world.path_commands, tokens_into_entries);
set_cleanup_flag(CLEANUP_COMMANDS);
}