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-rw-r--r--src/map/atcommand.c28
-rw-r--r--src/map/script.c153
-rw-r--r--src/map/script.h27
3 files changed, 116 insertions, 92 deletions
diff --git a/src/map/atcommand.c b/src/map/atcommand.c
index 963f5c970..78d935ddc 100644
--- a/src/map/atcommand.c
+++ b/src/map/atcommand.c
@@ -8498,30 +8498,34 @@ ACMD(set)
CREATE(data, struct script_data,1);
- if( is_str ) {// string variable
- switch( reg[0] ) {
+ if (is_str) {
+ // string variable
+ const char *str = NULL;
+ switch (reg[0]) {
case '@':
- data->u.str = pc->readregstr(sd, script->add_str(reg));
+ str = pc->readregstr(sd, script->add_str(reg));
break;
case '$':
- data->u.str = mapreg->readregstr(script->add_str(reg));
+ str = mapreg->readregstr(script->add_str(reg));
break;
case '#':
- if( reg[1] == '#' )
- data->u.str = pc_readaccountreg2str(sd, script->add_str(reg));// global
+ if (reg[1] == '#')
+ str = pc_readaccountreg2str(sd, script->add_str(reg));// global
else
- data->u.str = pc_readaccountregstr(sd, script->add_str(reg));// local
+ str = pc_readaccountregstr(sd, script->add_str(reg));// local
break;
default:
- data->u.str = pc_readglobalreg_str(sd, script->add_str(reg));
+ str = pc_readglobalreg_str(sd, script->add_str(reg));
break;
}
- if( data->u.str == NULL || data->u.str[0] == '\0' ) {// empty string
+ if (str == NULL || str[0] == '\0') {
+ // empty string
data->type = C_CONSTSTR;
data->u.str = "";
- } else {// duplicate string
+ } else {
+ // duplicate string
data->type = C_STR;
- data->u.str = aStrdup(data->u.str);
+ data->u.mutstr = aStrdup(str);
}
} else {// integer variable
data->type = C_INT;
@@ -8549,7 +8553,7 @@ ACMD(set)
safesnprintf(atcmd_output, sizeof(atcmd_output),msg_fd(fd,1373),reg,data->u.num); // %s value is now :%d
break;
case C_STR:
- safesnprintf(atcmd_output, sizeof(atcmd_output),msg_fd(fd,1374),reg,data->u.str); // %s value is now :%s
+ safesnprintf(atcmd_output, sizeof(atcmd_output),msg_fd(fd,1374),reg,data->u.mutstr); // %s value is now :%s
break;
case C_CONSTSTR:
safesnprintf(atcmd_output, sizeof(atcmd_output),msg_fd(fd,1375),reg); // %s is empty
diff --git a/src/map/script.c b/src/map/script.c
index d2e474fa3..804fdd844 100644
--- a/src/map/script.c
+++ b/src/map/script.c
@@ -2864,43 +2864,46 @@ struct script_data *get_val(struct script_state* st, struct script_data* data) {
}
}
- if( postfix == '$' ) {// string variable
+ if (postfix == '$') {
+ // string variable
+ const char *str = NULL;
- switch( prefix ) {
+ switch (prefix) {
case '@':
- data->u.str = pc->readregstr(sd, data->u.num);
+ str = pc->readregstr(sd, data->u.num);
break;
case '$':
- data->u.str = mapreg->readregstr(data->u.num);
+ str = mapreg->readregstr(data->u.num);
break;
case '#':
- if( name[1] == '#' )
- data->u.str = pc_readaccountreg2str(sd, data->u.num);// global
+ if (name[1] == '#')
+ str = pc_readaccountreg2str(sd, data->u.num);// global
else
- data->u.str = pc_readaccountregstr(sd, data->u.num);// local
+ str = pc_readaccountregstr(sd, data->u.num);// local
break;
case '.':
if (data->ref)
- data->u.str = script->get_val_ref_str(st, data->ref, data);
+ str = script->get_val_ref_str(st, data->ref, data);
else if (name[1] == '@')
- data->u.str = script->get_val_scope_str(st, &st->stack->scope, data);
+ str = script->get_val_scope_str(st, &st->stack->scope, data);
else
- data->u.str = script->get_val_npc_str(st, &st->script->local, data);
+ str = script->get_val_npc_str(st, &st->script->local, data);
break;
case '\'':
- data->u.str = script->get_val_instance_str(st, name, data);
+ str = script->get_val_instance_str(st, name, data);
break;
default:
- data->u.str = pc_readglobalreg_str(sd, data->u.num);
+ str = pc_readglobalreg_str(sd, data->u.num);
break;
}
- if( data->u.str == NULL || data->u.str[0] == '\0' ) {// empty string
+ if (str == NULL || str[0] == '\0') {
+ // empty string
data->type = C_CONSTSTR;
data->u.str = "";
} else {// duplicate string
data->type = C_STR;
- data->u.str = aStrdup(data->u.str);
+ data->u.mutstr = aStrdup(str);
}
} else {// integer variable
@@ -3361,53 +3364,53 @@ void setd_sub(struct script_state *st, struct map_session_data *sd, const char *
}
/// Converts the data to a string
-const char* conv_str(struct script_state* st, struct script_data* data)
+const char *conv_str(struct script_state *st, struct script_data* data)
{
- char* p;
-
script->get_val(st, data);
- if( data_isstring(data) )
- {// nothing to convert
+ if (data_isstring(data)) {
+ // nothing to convert
+ return data->u.str;
}
- else if( data_isint(data) )
- {// int -> string
+ if (data_isint(data)) {
+ // int -> string
+ char *p;
CREATE(p, char, ITEM_NAME_LENGTH);
snprintf(p, ITEM_NAME_LENGTH, "%"PRId64"", data->u.num);
p[ITEM_NAME_LENGTH-1] = '\0';
data->type = C_STR;
- data->u.str = p;
+ data->u.mutstr = p;
+ return data->u.mutstr;
}
- else if( data_isreference(data) )
- {// reference -> string
+ if (data_isreference(data)) {
+ // reference -> string
//##TODO when does this happen (check script->get_val) [FlavioJS]
data->type = C_CONSTSTR;
data->u.str = reference_getname(data);
- }
- else
- {// unsupported data type
- ShowError("script:conv_str: cannot convert to string, defaulting to \"\"\n");
- script->reportdata(data);
- script->reportsrc(st);
- data->type = C_CONSTSTR;
- data->u.str = "";
- }
+ return data->u.str;
+ }
+ // unsupported data type
+ ShowError("script:conv_str: cannot convert to string, defaulting to \"\"\n");
+ script->reportdata(data);
+ script->reportsrc(st);
+ data->type = C_CONSTSTR;
+ data->u.str = "";
return data->u.str;
}
/// Converts the data to an int
-int conv_num(struct script_state* st, struct script_data* data) {
- char* p;
+int conv_num(struct script_state *st, struct script_data *data)
+{
long num;
script->get_val(st, data);
- if( data_isint(data) )
- {// nothing to convert
+ if (data_isint(data)) {
+ // nothing to convert
+ return (int)data->u.num;
}
- else if( data_isstring(data) )
- {// string -> int
+ if (data_isstring(data)) {
+ // string -> int
// the result does not overflow or underflow, it is capped instead
// ex: 999999999999 is capped to INT_MAX (2147483647)
- p = data->u.str;
errno = 0;
num = strtol(data->u.str, NULL, 10);// change radix to 0 to support octal numbers "o377" and hex numbers "0xFF"
if( errno == ERANGE
@@ -3429,22 +3432,21 @@ int conv_num(struct script_state* st, struct script_data* data) {
script->reportdata(data);
script->reportsrc(st);
}
- if( data->type == C_STR )
- aFree(p);
+ if (data->type == C_STR)
+ aFree(data->u.mutstr);
data->type = C_INT;
data->u.num = (int)num;
+ return (int)data->u.num;
}
#if 0
+ // unsupported data type
// FIXME this function is being used to retrieve the position of labels and
// probably other stuff [FlavioJS]
- else
- {// unsupported data type
- ShowError("script:conv_num: cannot convert to number, defaulting to 0\n");
- script->reportdata(data);
- script->reportsrc(st);
- data->type = C_INT;
- data->u.num = 0;
- }
+ ShowError("script:conv_num: cannot convert to number, defaulting to 0\n");
+ script->reportdata(data);
+ script->reportsrc(st);
+ data->type = C_INT;
+ data->u.num = 0;
#endif
return (int)data->u.num;
}
@@ -3474,11 +3476,23 @@ struct script_data* push_val(struct script_stack* stack, enum c_op type, int64 v
}
/// Pushes a string into the stack
-struct script_data* push_str(struct script_stack* stack, enum c_op type, char* str)
+struct script_data *push_str(struct script_stack *stack, char *str)
{
if( stack->sp >= stack->sp_max )
script->stack_expand(stack);
- stack->stack_data[stack->sp].type = type;
+ stack->stack_data[stack->sp].type = C_STR;
+ stack->stack_data[stack->sp].u.mutstr = str;
+ stack->stack_data[stack->sp].ref = NULL;
+ stack->sp++;
+ return &stack->stack_data[stack->sp-1];
+}
+
+/// Pushes a constant string into the stack
+struct script_data *push_conststr(struct script_stack *stack, const char *str)
+{
+ if( stack->sp >= stack->sp_max )
+ script->stack_expand(stack);
+ stack->stack_data[stack->sp].type = C_CONSTSTR;
stack->stack_data[stack->sp].u.str = str;
stack->stack_data[stack->sp].ref = NULL;
stack->sp++;
@@ -3500,10 +3514,10 @@ struct script_data* push_retinfo(struct script_stack* stack, struct script_retin
struct script_data* push_copy(struct script_stack* stack, int pos) {
switch( stack->stack_data[pos].type ) {
case C_CONSTSTR:
- return script->push_str(stack, C_CONSTSTR, stack->stack_data[pos].u.str);
+ return script->push_conststr(stack, stack->stack_data[pos].u.str);
break;
case C_STR:
- return script->push_str(stack, C_STR, aStrdup(stack->stack_data[pos].u.str));
+ return script->push_str(stack, aStrdup(stack->stack_data[pos].u.mutstr));
break;
case C_RETINFO:
ShowFatalError("script:push_copy: can't create copies of C_RETINFO. Exiting...\n");
@@ -3537,8 +3551,8 @@ void pop_stack(struct script_state* st, int start, int end) {
for( i = start; i < end; i++ )
{
data = &stack->stack_data[i];
- if( data->type == C_STR )
- aFree(data->u.str);
+ if (data->type == C_STR)
+ aFree(data->u.mutstr);
if( data->type == C_RETINFO )
{
struct script_retinfo* ri = data->u.ri;
@@ -3769,12 +3783,11 @@ void op_3(struct script_state* st, int op)
data = script_getdatatop(st, -3);
script->get_val(st, data);
- if( data_isstring(data) )
- flag = data->u.str[0];// "" -> false
- else if( data_isint(data) )
+ if (data_isstring(data)) {
+ flag = data->u.str[0]; // "" -> false
+ } else if (data_isint(data)) {
flag = data->u.num == 0 ? 0 : 1;// 0 -> false
- else
- {
+ } else {
ShowError("script:op_3: invalid data for the ternary operator test\n");
script->reportdata(data);
script->reportsrc(st);
@@ -3995,10 +4008,9 @@ void op_2(struct script_state *st, int op)
script->op_2str(st, op, left->u.str, right->u.str);
script_removetop(st, leftref.type == C_NOP ? -3 : -2, -1);// pop the two values before the top one
- if (leftref.type != C_NOP)
- {
+ if (leftref.type != C_NOP) {
if (left->type == C_STR) // don't free C_CONSTSTR
- aFree(left->u.str);
+ aFree(left->u.mutstr);
*left = leftref;
}
}
@@ -4396,7 +4408,7 @@ void run_script_main(struct script_state *st) {
script->push_val(stack,c,0,NULL);
break;
case C_STR:
- script->push_str(stack,C_CONSTSTR,(char*)(st->script->script_buf+st->pos));
+ script->push_conststr(stack, (const char *)(st->script->script_buf+st->pos));
while(st->script->script_buf[st->pos++]);
break;
case C_LSTR:
@@ -4408,7 +4420,7 @@ void run_script_main(struct script_state *st) {
st->pos += sizeof(int) + sizeof(uint8);
if( (!st->rid || !(lsd = map->id2sd(st->rid)) || !lsd->lang_id) && !map->default_lang_id )
- script->push_str(stack,C_CONSTSTR,script->string_list+string_id);
+ script->push_conststr(stack, script->string_list+string_id);
else {
uint8 k, wlang_id = lsd ? lsd->lang_id : map->default_lang_id;
int offset = st->pos;
@@ -4420,8 +4432,10 @@ void run_script_main(struct script_state *st) {
break;
offset += sizeof(char*);
}
- script->push_str(stack,C_CONSTSTR,
- ( k == translations ) ? script->string_list+string_id : *(char**)(&st->script->script_buf[offset]) );
+ if (k == translations)
+ script->push_conststr(stack, script->string_list+string_id);
+ else
+ script->push_conststr(stack, *(const char**)(&st->script->script_buf[offset]) );
}
st->pos += ( ( sizeof(char*) + sizeof(uint8) ) * translations );
}
@@ -6341,7 +6355,7 @@ BUILDIN(jobchange)
BUILDIN(jobname)
{
int class_=script_getnum(st,2);
- script_pushconststr(st, (char*)pc->job_name(class_));
+ script_pushconststr(st, pc->job_name(class_));
return true;
}
@@ -21152,6 +21166,7 @@ void script_defaults(void) {
script->get_val_npc_num = get_val_npcscope_num;
script->get_val_instance_num = get_val_instance_num;
script->push_str = push_str;
+ script->push_conststr = push_conststr;
script->push_copy = push_copy;
script->pop_stack = pop_stack;
script->set_constant = script_set_constant;
diff --git a/src/map/script.h b/src/map/script.h
index b12c84f96..9eb473f03 100644
--- a/src/map/script.h
+++ b/src/map/script.h
@@ -94,11 +94,11 @@ struct item_data;
/// Pushes an int into the stack
#define script_pushint(st,val) (script->push_val((st)->stack, C_INT, (val),NULL))
/// Pushes a string into the stack (script engine frees it automatically)
-#define script_pushstr(st,val) (script->push_str((st)->stack, C_STR, (val)))
+#define script_pushstr(st,val) (script->push_str((st)->stack, (val)))
/// Pushes a copy of a string into the stack
-#define script_pushstrcopy(st,val) (script->push_str((st)->stack, C_STR, aStrdup(val)))
+#define script_pushstrcopy(st,val) (script->push_str((st)->stack, aStrdup(val)))
/// Pushes a constant string into the stack (must never change or be freed)
-#define script_pushconststr(st,val) (script->push_str((st)->stack, C_CONSTSTR, (val)))
+#define script_pushconststr(st,val) (script->push_conststr((st)->stack, (val)))
/// Pushes a nil into the stack
#define script_pushnil(st) (script->push_val((st)->stack, C_NOP, 0,NULL))
/// Pushes a copy of the data in the target index
@@ -380,14 +380,18 @@ struct script_retinfo {
int defsp; ///< default stack pointer
};
+/**
+ * Represents a variable in the script stack.
+ */
struct script_data {
- enum c_op type;
+ enum c_op type; ///< Data type
union script_data_val {
- int64 num;
- char *str;
- struct script_retinfo* ri;
- } u;
- struct reg_db *ref;
+ int64 num; ///< Numeric data
+ char *mutstr; ///< Mutable string
+ const char *str; ///< Constant string
+ struct script_retinfo *ri; ///< Function return information
+ } u; ///< Data (field depends on `type`)
+ struct reg_db *ref; ///< Reference to the scope's variables
};
// Moved defsp from script_state to script_stack since
@@ -661,8 +665,9 @@ struct script_interface {
int (*get_val_npc_num) (struct script_state* st, struct reg_db *n, struct script_data* data);
int (*get_val_instance_num) (struct script_state* st, const char* name, struct script_data* data);
const void *(*get_val2) (struct script_state *st, int64 uid, struct reg_db *ref);
- struct script_data* (*push_str) (struct script_stack* stack, enum c_op type, char* str);
- struct script_data* (*push_copy) (struct script_stack* stack, int pos);
+ struct script_data *(*push_str) (struct script_stack *stack, char *str);
+ struct script_data *(*push_conststr) (struct script_stack *stack, const char *str);
+ struct script_data *(*push_copy) (struct script_stack *stack, int pos);
void (*pop_stack) (struct script_state* st, int start, int end);
void (*set_constant) (const char *name, int value, bool is_parameter, bool is_deprecated);
void (*set_constant2) (const char *name, int value, bool is_parameter, bool is_deprecated);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-04 13:51:45 +0000