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Scripting: 'not' command

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This commit is contained in:
d0k3 2017-12-31 03:26:50 +01:00
parent 918482ef91
commit dbe600c458
1 changed files with 41 additions and 30 deletions
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71
arm9/source/utils/scripting.c
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@ -24,6 +24,7 @@
#define _CHOICE_STR_LEN 32
#define _CHOICE_MAX_N 12
#define _CMD_NOT "not"
#define _CMD_IF "if"
#define _CMD_ELIF "elif"
#define _CMD_ELSE "else"
@ -57,6 +58,7 @@
// command ids (also entry into the cmd_list aray below)
typedef enum {
CMD_ID_NONE = 0,
CMD_ID_NOT,
CMD_ID_IF,
CMD_ID_ELIF,
CMD_ID_ELSE,
@ -111,6 +113,7 @@ typedef struct {
Gm9ScriptCmd cmd_list[] = {
{ CMD_ID_NONE , "#" , 0, 0 }, // dummy entry
{ CMD_ID_NOT , _CMD_NOT , 0, 0 }, // inverts the output of the following command
{ CMD_ID_IF , _CMD_IF , 1, 0 }, // control flow commands at the top of the list
{ CMD_ID_ELIF , _CMD_ELIF , 1, 0 },
{ CMD_ID_ELSE , _CMD_ELSE , 0, 0 },
@ -618,8 +621,11 @@ bool parse_line(const char* line_start, const char* line_end, cmd_id* cmdid, u32
if (!(cmd = get_string(ptr, line_end, &cmd_len, &ptr, err_str))) return false; // string error
if ((cmd >= line_end) || (*cmd == '#') || (*cmd == '@')) return true; // empty line or comment or label
// special handling for "if" and "elif"
if (MATCH_STR(cmd, cmd_len, _CMD_IF)) {
// special handling for "if", "elif" and "not"
if (MATCH_STR(cmd, cmd_len, _CMD_NOT)) {
*cmdid = CMD_ID_NOT;
return true;
} else if (MATCH_STR(cmd, cmd_len, _CMD_IF)) {
*cmdid = CMD_ID_IF;
return true;
} else if (MATCH_STR(cmd, cmd_len, _CMD_ELIF)) {
@ -666,7 +672,13 @@ bool run_cmd(cmd_id id, u32 flags, char** argv, char* err_str) {
}
// perform command
if (id == CMD_ID_IF) {
if (id == CMD_ID_NOT) {
// check the argument
// "not true" or "not false"
ret = (strncmp(argv[0], _ARG_FALSE, _ARG_MAX_LEN) == 0);
if (err_str) snprintf(err_str, _ERR_STR_LEN, "'not' an error");
}
else if (id == CMD_ID_IF) {
// check the argument
// "if true" or "if false"
skip_state = (strncmp(argv[0], _ARG_TRUE, _ARG_MAX_LEN) == 0) ? 0 : _SKIP_BLOCK;
@ -1053,6 +1065,7 @@ bool run_cmd(cmd_id id, u32 flags, char** argv, char* err_str) {
if (err_str) snprintf(err_str, _ERR_STR_LEN, "unknown error");
}
if (ret && err_str) snprintf(err_str, _ERR_STR_LEN, "command success");
return ret;
}
@ -1078,35 +1091,33 @@ bool run_line(const char* line_start, const char* line_end, u32* flags, char* er
}
// control flow command handling
if (IS_CTRLFLOW_CMD(cmdid)) {
// block out of control flow commands
if (if_cond) {
if (err_str) snprintf(err_str, _ERR_STR_LEN, "control flow error");
syntax_error = true;
return false;
}
// block out of control flow commands
if (if_cond && IS_CTRLFLOW_CMD(cmdid)) {
if (err_str) snprintf(err_str, _ERR_STR_LEN, "control flow error");
syntax_error = true;
return false;
}
// shortcuts for "elif" / "else"
if (((cmdid == CMD_ID_ELIF) || (cmdid == CMD_ID_ELSE)) && !skip_state) {
skip_state = _SKIP_TILL_END;
cmdid = 0;
}
// shortcuts for "elif" / "else"
if (((cmdid == CMD_ID_ELIF) || (cmdid == CMD_ID_ELSE)) && !skip_state) {
skip_state = _SKIP_TILL_END;
cmdid = 0;
}
// handle "if" / "elif" / "not"
if ((cmdid == CMD_ID_IF) || (cmdid == CMD_ID_ELIF) || (cmdid == CMD_ID_NOT)) {
// set defaults
argc = 1;
strncpy(argv[0], _ARG_FALSE, _ARG_MAX_LEN);
// handle "if" / "elif"
if ((cmdid == CMD_ID_IF) || (cmdid == CMD_ID_ELIF)) {
// set defaults
argc = 1;
strncpy(argv[0], _ARG_FALSE, _ARG_MAX_LEN);
// skip to behind the "if"/"elif" command
char* line_start_next = (char*) line_start;
for (; IS_WHITESPACE(*line_start_next); line_start_next++);
line_start_next += strlen((cmdid == CMD_ID_IF) ? _CMD_IF : _CMD_ELIF);
// run condition, take over result
if (run_line(line_start_next, line_end, flags, err_str, true))
strncpy(argv[0], _ARG_TRUE, _ARG_MAX_LEN);
}
// skip to behind the command
char* line_start_next = (char*) line_start;
for (; IS_WHITESPACE(*line_start_next); line_start_next++);
for (; *line_start_next && !IS_WHITESPACE(*line_start_next); line_start_next++);
// run condition, take over result
if (run_line(line_start_next, line_end, flags, err_str, true))
strncpy(argv[0], _ARG_TRUE, _ARG_MAX_LEN);
}
// run the command (if available)