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Fixed double-comma if the crc is first in the mapping

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Sam Lantinga 2023-07-18 17:32:46 -07:00
parent c0e0f47755
commit 85eb1fa515
1 changed files with 3 additions and 1 deletions
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4
src/joystick/SDL_gamepad.c
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@ -1465,6 +1465,7 @@ static GamepadMapping_t *SDL_PrivateAddMappingForGUID(SDL_JoystickGUID jGUID, co
/* Make sure the mapping has the CRC */
char *new_mapping;
const char *optional_comma;
size_t mapping_length;
char *crc_end = "";
char *crc_string = SDL_strstr(pchMapping, SDL_GAMEPAD_CRC_FIELD);
if (crc_string) {
@ -1478,7 +1479,8 @@ static GamepadMapping_t *SDL_PrivateAddMappingForGUID(SDL_JoystickGUID jGUID, co
}
/* Make sure there's a comma before the CRC */
if (pchMapping[SDL_strlen(pchMapping) - 1] == ',') {
mapping_length = SDL_strlen(pchMapping);
if (mapping_length == 0 || pchMapping[mapping_length - 1] == ',') {
optional_comma = "";
} else {
optional_comma = ",";