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feat(ui): add FrameScript_Sprintf

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This commit is contained in:
Tristan Cormier 2025-11-28 23:06:28 -05:00
parent 590e92ff19
commit 2a1820ab42
2 changed files with 191 additions and 0 deletions
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189
src/ui/FrameScript.cpp
View File

@ -844,6 +844,195 @@ void FrameScript_SignalEvent(uint32_t index, const char* format, ...) {
va_end(args); va_end(args);
} }
const char* FrameScript_Sprintf(lua_State* L, int startIndex, char* buffer, size_t bufferSize) {
char specifier[3];
char* tempBuffer = buffer;
int32_t firstArgIndex = startIndex;
size_t maxchars = bufferSize;
int32_t argIndex = startIndex;
size_t formatSize;
const char* format = luaL_checklstring(L, startIndex, &formatSize);
const char* formatEnd = &format[formatSize];
if (format < formatEnd) {
while (maxchars > 1) {
char next = *format++;
if (next == '%') {
char specChar = *format;
if (*format == '%') {
*tempBuffer++ = '%';
++format;
--maxchars;
}
else {
specifier[0] = '%';
if (specChar >= '0' && specChar <= '9' && format[1] == '$') {
argIndex = specChar + firstArgIndex - 49;
format += 2;
}
++argIndex;
const char* formatStart = format;
while (true) {
char ch = *format;
if (*format != '-' && ch != '+' && ch != ' ' && ch != '#' && ch != '0') {
break;
}
++format;
}
for (char i = *format; i >= '0'; i = *++format) {
if (i > '9') {
break;
}
}
if (*format == '.') {
++format;
}
if (*format == '-') {
++format;
}
for (char j = *format; j >= '0'; j = *++format) {
if (j > '9') {
break;
}
}
size_t specifierLength = format - formatStart;
if (format - formatStart > 125) {
luaL_error(L, "invalid format (width or precision too long)");
}
memcpy(&specifier[1], formatStart, specifierLength + 1);
int32_t option = *format++ - 69;
specifier[specifierLength + 2] = 0;
switch (option) {
case 0:
case 2:
case 32:
case 33:
case 34: {
lua_Number val = luaL_checknumber(L, argIndex);
size_t length = SStrPrintf(tempBuffer, maxchars, specifier, val);
if (length > 0) {
tempBuffer += length;
maxchars -= length;
}
break;
}
case 1: {
for (char *k = specifier; *k; ++k) {
if (*k == 'F') {
*k = 'f';
}
}
lua_Number val = luaL_checknumber(L, argIndex);
size_t length = SStrPrintf(tempBuffer, maxchars, specifier, val);
if (length > 0) {
// TODO
//lua_convertdecimal(tempBuffer);
tempBuffer += length;
maxchars -= length;
}
break;
}
case 19:
case 42:
case 48:
case 51: {
lua_Number val = luaL_checknumber(L, argIndex);
size_t length = SStrPrintf(tempBuffer, maxchars, specifier, val);
if (length > 0) {
tempBuffer += length;
maxchars -= length;
}
break;
}
case 30:
*tempBuffer++ = static_cast<char>(luaL_checknumber(L, argIndex));
--maxchars;
break;
case 31:
case 36: {
auto val = static_cast<uint32_t>(luaL_checknumber(L, argIndex));
size_t length = SStrPrintf(tempBuffer, maxchars, specifier, val);
if (length > 0) {
// TODO
//lua_convertdecimal(tempBuffer);
tempBuffer += length;
maxchars -= length;
}
break;
}
case 46: {
size_t len;
const char* string = luaL_checklstring(L, argIndex, &len);
size_t length = SStrPrintf(tempBuffer, maxchars, specifier, string);
if (length > 0) {
tempBuffer += length;
maxchars -= length;
}
break;
}
default:
luaL_error(L, "invalid option in `format'");
}
}
}
else {
*tempBuffer++ = next;
--maxchars;
}
if (format >= formatEnd) {
break;
}
firstArgIndex = startIndex;
}
*tempBuffer = 0;
return buffer;
}
*buffer = 0;
return buffer;
}
void FrameScript_UnregisterScriptEvent(FrameScript_Object* object, FrameScript_EventObject* event) { void FrameScript_UnregisterScriptEvent(FrameScript_Object* object, FrameScript_EventObject* event) {
if (event->pendingSignalCount) { if (event->pendingSignalCount) {
auto node = event->unregisterListeners.Head(); auto node = event->unregisterListeners.Head();

2
src/ui/FrameScript.hpp
View File

@ -97,6 +97,8 @@ void FrameScript_SetPluralRule(PLURAL_RULE rule);
void FrameScript_SignalEvent(uint32_t index, const char* format, ...); void FrameScript_SignalEvent(uint32_t index, const char* format, ...);
const char* FrameScript_Sprintf(lua_State* L, int32_t startIndex, char* buffer, size_t bufferSize);
void FrameScript_UnregisterScriptEvent(FrameScript_Object* object, FrameScript_EventObject* event); void FrameScript_UnregisterScriptEvent(FrameScript_Object* object, FrameScript_EventObject* event);
void ScriptEventsInitialize(); void ScriptEventsInitialize();