/* src/server/configfile.c */
-#define _POSIX_C_SOURCE 200809L /* strdup() */
#include <stddef.h> /* size_t, NULL */
-#include <stdio.h> /* FILE, sprintf() */
-#include <stdint.h> /* uint8_t, uint32_t */
+#include <stdio.h> /* sprintf() */
+#include <stdint.h> /* uint8_t */
#include <stdlib.h> /* atoi(), free() */
-#include <string.h> /* strchr(), strcmp(), strdup(), strlen() */
-#include <unistd.h> /* access(), F_OK */
-#include "../common/err_try_fgets.h" /* err_line(), err_try_fgets(),
- * reset_err_try_fgets_counter()
- */
-#include "../common/readwrite.h" /* try_fopen(),try_fclose(),textfile_width() */
+#include <string.h> /* strcmp() */
+#include "../common/err_try_fgets.h" /* err_line() */
+#include "../common/parse_file.h" /* Context, EDIT_STARTED, set_val(),
+ * set_uint8(), parse_file()
+ */
#include "../common/rexit.h" /* exit_err() */
#include "../common/try_malloc.h" /* try_malloc() */
#include "cleanup.h" /* set_cleanup_flag(), CLEANUP_MAP_OBJ_DEFS,
-/* Flags defining state of object and action entry reading ((un-)finished, ready
- * for starting the reading of a new definition etc.
+/* Flags defining state of object and action entry reading ((un-)finished /
+ * ready for starting the reading of a new definition etc.)
*/
enum flag
{
- EDIT_STARTED = 0x01,
NAME_SET = 0x02,
EFFORT_SET = 0x04,
CORPSE_ID_SET = 0x04,
-/* Many functions working on config file lines / tokens work with these elements
- * that only change on line change. Makes sense to pass them over together.
- */
-struct Context {
- char * line;
- char * token0;
- char * token1;
- char * err_pre;
-};
-
-
-
-/* Return next token from "line" or NULL if none is found. Tokens either a)
- * start at the first non-whitespace character and end before the next
- * whitespace character after that; or b) if the first non-whitespace character
- * is a single quote followed by at least one other single quote some time later
- * on the line, the token starts after that first single quote and ends before
- * the second, with the next token_from_line() call starting its token search
- * after that second quote. The only way to return an empty string (instead of
- * NULL) as a token is to delimit the token by two succeeding single quotes.
- * */
-static char * token_from_line(char * line);
-
-/* Determines the end of the token_from_line() token. */
-static void set_token_end(char ** start, char ** limit_char);
-
/* 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 MapObjAct / MapObjDef DB.
* Individual MapObjDef / MapObjAct DB entries are put together line by line
* before being written. Writing only 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 "ACTION" or "OBJECT"; or b) a NULL context->token0 is
- * passed. This is interpreted as the end of the MapObjDef / MapObjAct DB read,
- * so the appropriate cleanup flags are set and test_corpse_ids() is called.
+ * a context->token0 of "ACTION" or "OBJECT"; or b) context->token0 is NULL.
*/
static void tokens_into_entries(struct Context * context);
* used in DB starting at "entry_cmp".
*/
static uint8_t new_entry(struct Context * context, char * comparand,
- enum flag * flags, size_t size,
+ uint8_t * flags, size_t size,
struct EntryHead ** entry,
struct EntryHead * entry_cmp);
*
* Note that MapObjAct entries' .name also determines their .func.
*/
-static uint8_t set_members(struct Context * context, enum flag * object_flags,
- enum flag * action_flags, struct MapObjDef * mod,
+static uint8_t set_members(struct Context * context, uint8_t * object_flags,
+ uint8_t * action_flags, struct MapObjDef * mod,
struct MapObjAct * moa);
-/* If "context"->token0 fits "comparand", set "element" to value read from
- * ->token1 as either string (type: "s"), char ("c") or uint8 ("8"), set
- * that element's flag to "flags" and return 1; else return 0.
- */
-static uint8_t set_val(struct Context * context, char * comparand,
- enum flag * flags, enum flag set_flag, char type,
- char * element);
-
-/* Writes "context"->token1 to "target" only if it describes a proper uint8. */
-static void set_uint8(struct Context * context, uint8_t * target);
-
/* If "name" fits "moa"->name, set "moa"->func to "func". (Derives MapObjAct
* .func from .name for set_members().
*/
-static char * token_from_line(char * line)
-{
- static char * final_char = NULL;
- static char * limit_char = NULL;
- char * start = limit_char + 1;
- if (line)
- {
- start = line;
- limit_char = start;
- final_char = &(line[strlen(line)]);
- if ('\n' == *(final_char - 1))
- {
- *(--final_char) = '\0';
- }
- }
- uint8_t empty = 1;
- uint32_t i;
- for (i = 0; '\0' != start[i]; i++)
- {
- if (' ' != start[i] && '\t' != start[i])
- {
- start = &start[i];
- empty = 0;
- break;
- }
- }
- if (empty)
- {
- return start = NULL;
- }
- set_token_end(&start, &limit_char);
- return start;
-}
-
-
-
-static void set_token_end(char ** start, char ** limit_char)
-{
- char * end_quote = ('\'' == (*start)[0]) ? strchr(*start + 1, '\'') : NULL;
- *start = (end_quote) ? *start + 1 : *start;
- if (end_quote)
- {
- *end_quote = '\0';
- *limit_char = end_quote;
- return;
- }
- char * space = strchr(*start, ' ');
- char * tab = strchr(*start, '\t');
- space = (!space || (tab && tab < space)) ? tab : space;
- if (space)
- {
- * space = '\0';
- }
- *limit_char = strchr(*start, '\0');
-}
-
-
-
static void tokens_into_entries(struct Context * context)
{
char * str_act = "ACTION";
char * str_obj = "OBJECT";
static struct MapObjAct ** moa_p_p = &world.map_obj_acts;
static struct MapObjDef ** mod_p_p = &world.map_obj_defs;
- static enum flag action_flags = READY_ACT;
- static enum flag object_flags = READY_OBJ;
+ static uint8_t action_flags = READY_ACT;
+ static uint8_t object_flags = READY_OBJ;
static struct EntryHead * moa = NULL;
static struct EntryHead * mod = NULL;
if ( !context->token0
context->line, context->err_pre, err_fin);
err_line((object_flags & READY_OBJ) ^ READY_OBJ,
context->line, context->err_pre, err_fin);
- object_flags = action_flags = READY_OBJ;
write_if_entry(&moa, (struct EntryHead ***) &moa_p_p);
write_if_entry(&mod, (struct EntryHead ***) &mod_p_p);
+ object_flags = action_flags = READY_OBJ;
}
- if (!context->token0)
- {
- set_cleanup_flag(CLEANUP_MAP_OBJECT_ACTS | CLEANUP_MAP_OBJECT_DEFS);
- test_corpse_ids();
- return;
- }
- if (!( new_entry(context, str_act, &action_flags,
- sizeof(struct MapObjAct), (struct EntryHead**) &moa,
- (struct EntryHead *) world.map_obj_acts)
- || new_entry(context, str_obj, &object_flags,
- sizeof(struct MapObjDef), (struct EntryHead**) &mod,
- (struct EntryHead *) world.map_obj_defs)
- || set_members(context, &object_flags, &action_flags,
- (struct MapObjDef *) mod, (struct MapObjAct *) moa)))
+ if ( context->token0
+ && !( new_entry(context, str_act, &action_flags,
+ sizeof(struct MapObjAct), (struct EntryHead**) &moa,
+ (struct EntryHead *) world.map_obj_acts)
+ || new_entry(context, str_obj, &object_flags,
+ sizeof(struct MapObjDef), (struct EntryHead**) &mod,
+ (struct EntryHead *) world.map_obj_defs)
+ || set_members(context, &object_flags, &action_flags,
+ (struct MapObjDef *) mod, (struct MapObjAct *) moa)))
{
- err_line(1, context->line, context->err_pre, "Unknown argument");
+ char * err_unknown = "Unknown argument.";
+ err_line(1, context->line, context->err_pre, err_unknown);
}
}
static uint8_t new_entry(struct Context * context, char * comparand,
- enum flag * flags, size_t size,
+ uint8_t * flags, size_t size,
struct EntryHead ** entry,struct EntryHead * entry_cmp)
{
char * f_name = "new_entry()";
-static uint8_t set_members(struct Context * context, enum flag * object_flags,
- enum flag * action_flags, struct MapObjDef * mod,
+static uint8_t set_members(struct Context * context, uint8_t * object_flags,
+ uint8_t * action_flags, struct MapObjDef * mod,
struct MapObjAct * moa)
{
if ( * action_flags & EDIT_STARTED
-static uint8_t set_val(struct Context * context, char * comparand,
- enum flag * flags, enum flag set_flag, char type,
- char * element)
-{
- char * err_out = "Outside appropriate definition's context.";
- char * err_singlechar = "Value must be single ASCII character.";
- if (!strcmp(context->token0, comparand))
- {
- err_line(!(* flags & EDIT_STARTED),
- context->line, context->err_pre, err_out);
- * flags = * flags | set_flag;
- if ('s' == type)
- {
- * (char **) element = strdup(context->token1);
- }
- else if ('c' == type)
- {
- err_line(1 != strlen(context->token1),
- context->line, context->err_pre, err_singlechar);
- * element = (context->token1)[0];
- }
- else if ('8' == type)
- {
- set_uint8(context, (uint8_t *) element);
- }
- return 1;
- }
- return 0;
-}
-
-
-
-static void set_uint8(struct Context * context, uint8_t * target)
-{
- char * err_uint8 = "Value not unsigned decimal number between 0 and 255.";
- uint8_t i;
- uint8_t is_uint8 = 1;
- for (i = 0; '\0' != context->token1[i]; i++)
- {
- if (i > 2 || '0' > context->token1[i] || '9' < context->token1[i])
- {
- is_uint8 = 0;
- }
- }
- if (is_uint8 && atoi(context->token1) > UINT8_MAX)
- {
- is_uint8 = 0;
- }
- err_line(!(is_uint8), context->line, context->err_pre, err_uint8);
- *target = atoi(context->token1);
-}
-
-
-
static uint8_t try_func_name(struct MapObjAct * moa,
char * name, void (* func) (struct MapObj *))
{
-extern void read_config_file() {
- char * f_name = "read_new_config_file()";
- char * path = world.path_config;
- struct Context context;
- char * err_pre_prefix = "Failed reading config file: \"";
- char * err_pre_affix = "\". ";
- context.err_pre = try_malloc(strlen(err_pre_prefix) + strlen(path)
- + strlen(err_pre_affix) + 1, f_name);
- sprintf(context.err_pre, "%s%s%s", err_pre_prefix, path, err_pre_affix);
- exit_err(access(path, F_OK), context.err_pre);
- FILE * file = try_fopen(path, "r", f_name);
- uint32_t linemax = textfile_width(file);
- context.line = try_malloc(linemax + 1, f_name);
- reset_err_try_fgets_counter();
- err_line(0 == linemax, context.line, context.err_pre, "File is empty.");
- context.token0 = NULL; /* For tokens_into_entries() if while() stagnates. */
- char * err_val = "No value given.";
- char * err_many = "Too many values.";
- while (err_try_fgets(context.line, linemax + 1, file, context.err_pre, ""))
- {
- char * line_copy = strdup(context.line);
- context.token0 = token_from_line(line_copy);
- if (context.token0)
- {
- err_line(0 == (context.token1 = token_from_line(NULL)),
- context.line, context.err_pre, err_val);
- err_line(NULL != token_from_line(NULL),
- context.line, context.err_pre, err_many);
- tokens_into_entries(&context);
- context.token0 = NULL;
- }
- free(line_copy);
- }
- tokens_into_entries(&context);
- try_fclose(file, f_name);
- free(context.line);
- free(context.err_pre);
+extern void read_config_file()
+{
+ parse_file(world.path_config, tokens_into_entries);
+ set_cleanup_flag(CLEANUP_MAP_OBJECT_ACTS | CLEANUP_MAP_OBJECT_DEFS);
+ test_corpse_ids();
}
projects / plomrogue / blobdiff