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remove goto

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This commit is contained in:
blueloveTH 2022-11-16 16:15:31 +08:00
parent 343c43c63e
commit a5f65bb73f
1 changed files with 21 additions and 21 deletions
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42
src/parser.h
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@ -185,36 +185,36 @@ struct Parser {
current_char--;
while(true){
uint8_t c = peekChar();
//printf("eatName: %d = %c\n", (int)c, c);
int u8bytes = 0;
if((c & 0b10000000) == 0b00000000) u8bytes = 1;
else if((c & 0b11100000) == 0b11000000) u8bytes = 2;
else if((c & 0b11110000) == 0b11100000) u8bytes = 3;
else if((c & 0b11111000) == 0b11110000) u8bytes = 4;
else return 1;
std::string u8str(current_char, u8bytes);
//printf("%s %d %c\n", u8str.c_str(), u8bytes, c);
if(u8str.size() != u8bytes) return 2;
if(u8bytes == 1){
if(isalpha(c) || c=='_' || isdigit(c)) goto __EAT_ALL_BYTES;
}else{
uint32_t value = 0;
for(int k=0; k < u8bytes; k++){
uint8_t b = u8str[k];
if(k==0){
if(u8bytes == 2) value = (b & 0b00011111) << 6;
else if(u8bytes == 3) value = (b & 0b00001111) << 12;
else if(u8bytes == 4) value = (b & 0b00000111) << 18;
}else{
value |= (b & 0b00111111) << (6*(u8bytes-k-1));
}
if(isalpha(c) || c=='_' || isdigit(c)) {
current_char++;
continue;
}else{
break;
}
// printf("value: %d", value);
if(__isLoChar(value)) goto __EAT_ALL_BYTES;
}
break;
__EAT_ALL_BYTES:
current_char += u8bytes;
// handle multibyte char
std::string u8str(current_char, u8bytes);
if(u8str.size() != u8bytes) return 2;
uint32_t value = 0;
for(int k=0; k < u8bytes; k++){
uint8_t b = u8str[k];
if(k==0){
if(u8bytes == 2) value = (b & 0b00011111) << 6;
else if(u8bytes == 3) value = (b & 0b00001111) << 12;
else if(u8bytes == 4) value = (b & 0b00000111) << 18;
}else{
value |= (b & 0b00111111) << (6*(u8bytes-k-1));
}
}
if(__isLoChar(value)) current_char += u8bytes;
else break;
}
int length = (int)(current_char - token_start);