marrub/LoveToken
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fixed EVERY BUG EVER thanks to davidph

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This commit is contained in:
Marrub 2015-06-06 12:47:13 -04:00
parent a94f42eb81
commit 8ec9fc2abd
1 changed files with 84 additions and 73 deletions
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157
src/lt.c
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@ -80,9 +80,23 @@ static void LT_DoConvert(char **str)
*str = strbuf; *str = strbuf;
} }
static void *LT_Alloc(size_t size)
{
void *p = malloc(size);
LT_Assert(p == NULL, "LT_Alloc: Out of memory");
return p;
}
static void *LT_ReAlloc(void *ptr, size_t newSize)
{
void *p = realloc(ptr, newSize);
LT_Assert(p == NULL, "LT_ReAlloc: Out of memory");
return p;
}
void LT_Init(LT_InitInfo initInfo) void LT_Init(LT_InitInfo initInfo)
{ {
gbHead = malloc(sizeof(LT_GarbageList)); gbHead = LT_Alloc(sizeof(LT_GarbageList));
gbHead->next = NULL; gbHead->next = NULL;
gbHead->ptr = NULL; gbHead->ptr = NULL;
@ -113,11 +127,11 @@ void LT_Init(LT_InitInfo initInfo)
{ {
int i; int i;
stringChars = malloc(6); stringChars = LT_Alloc(6);
for(i = 0; i < 6; i++) for(i = 0; i < 6; i++)
{ {
char c = info.stringChars[i]; int c = info.stringChars[i];
if(c != '\0') if(c != '\0')
{ {
@ -131,7 +145,7 @@ void LT_Init(LT_InitInfo initInfo)
stringChars[i] = '\0'; stringChars[i] = '\0';
gbRover->next = malloc(sizeof(LT_GarbageList)); gbRover->next = LT_Alloc(sizeof(LT_GarbageList));
gbRover = gbRover->next; gbRover = gbRover->next;
gbRover->ptr = stringChars; gbRover->ptr = stringChars;
gbRover->next = NULL; gbRover->next = NULL;
@ -141,11 +155,11 @@ void LT_Init(LT_InitInfo initInfo)
{ {
int i; int i;
charChars = malloc(6); charChars = LT_Alloc(6);
for(i = 0; i < 6; i++) for(i = 0; i < 6; i++)
{ {
char c = info.charChars[i]; int c = info.charChars[i];
if(c != '\0') if(c != '\0')
{ {
@ -159,7 +173,7 @@ void LT_Init(LT_InitInfo initInfo)
charChars[i] = '\0'; charChars[i] = '\0';
gbRover->next = malloc(sizeof(LT_GarbageList)); gbRover->next = LT_Alloc(sizeof(LT_GarbageList));
gbRover = gbRover->next; gbRover = gbRover->next;
gbRover->ptr = charChars; gbRover->ptr = charChars;
gbRover->next = NULL; gbRover->next = NULL;
@ -228,11 +242,10 @@ bool LT_OpenFile(const char *filePath)
if(parseFile == NULL) if(parseFile == NULL)
{ {
char *errorStr = malloc(256); char *errorStr = LT_Alloc(256);
snprintf(errorStr, 256, "LT_OpenFile: %s", strerror(errno)); snprintf(errorStr, 256, "LT_OpenFile: %s", strerror(errno));
LT_Assert(true, errorStr); LT_Assert(true, errorStr);
free(errorStr);
return false; return false;
} }
@ -250,22 +263,23 @@ void LT_CloseFile()
char *LT_ReadNumber() char *LT_ReadNumber()
{ {
size_t i = 0, str_blocks = 1; size_t i = 0, strBlocks = 1;
char c, *str = malloc(TOKEN_STR_BLOCK_LENGTH); char *str = LT_Alloc(TOKEN_STR_BLOCK_LENGTH);
int c = '\0';
while(!feof(parseFile)) while(c != EOF)
{ {
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(!isalnum(c)) if(!isalnum(c))
{ {
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
break; break;
} }
if(i > TOKEN_STR_BLOCK_LENGTH) if(i > (TOKEN_STR_BLOCK_LENGTH * strBlocks))
{ {
realloc(str, TOKEN_STR_BLOCK_LENGTH * str_blocks++); str = LT_ReAlloc(str, TOKEN_STR_BLOCK_LENGTH * ++strBlocks);
} }
str[i++] = c; str[i++] = c;
@ -283,9 +297,9 @@ char *LT_ReadNumber()
LT_DoConvert(&str); LT_DoConvert(&str);
} }
gbRover->next = malloc(sizeof(LT_GarbageList)); gbRover->next = LT_Alloc(sizeof(LT_GarbageList));
gbRover = gbRover->next; gbRover = gbRover->next;
gbRover->ptr = realloc(str, i); gbRover->ptr = LT_ReAlloc(str, i);
gbRover->next = NULL; gbRover->next = NULL;
return gbRover->ptr; return gbRover->ptr;
@ -293,45 +307,46 @@ char *LT_ReadNumber()
char *LT_ReadString(char term) char *LT_ReadString(char term)
{ {
size_t i = 0, str_blocks = 1; size_t i = 0, strBlocks = 1;
char c, *str = malloc(TOKEN_STR_BLOCK_LENGTH); char *str = LT_Alloc(TOKEN_STR_BLOCK_LENGTH);
int c;
while(true) while(true)
{ {
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(c == term) if(c == term)
{ {
break; break;
} }
if(LT_Assert(feof(parseFile) || c == '\n', "LT_ReadString: Unterminated string literal")) if(LT_Assert(c == EOF || c == '\n', "LT_ReadString: Unterminated string literal"))
{ {
return ""; return "";
} }
if(c == '\\' && info.escapeChars) if(c == '\\' && info.escapeChars)
{ {
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(LT_Assert(feof(parseFile) || c == '\n', "LT_ReadString: Unterminated string literal")) if(LT_Assert(c == EOF || c == '\n', "LT_ReadString: Unterminated string literal"))
{ {
str[i] = '\0'; str[i] = '\0';
return str; return str;
} }
if(i > TOKEN_STR_BLOCK_LENGTH) if(i > (TOKEN_STR_BLOCK_LENGTH * strBlocks))
{ {
realloc(str, TOKEN_STR_BLOCK_LENGTH * str_blocks++); str = LT_ReAlloc(str, TOKEN_STR_BLOCK_LENGTH * ++strBlocks);
} }
str = LT_Escaper(str, i++, c); str = LT_Escaper(str, i++, c);
} }
else else
{ {
if(i > TOKEN_STR_BLOCK_LENGTH) if(i > (TOKEN_STR_BLOCK_LENGTH * strBlocks))
{ {
realloc(str, TOKEN_STR_BLOCK_LENGTH * str_blocks++); str = LT_ReAlloc(str, TOKEN_STR_BLOCK_LENGTH * ++strBlocks);
} }
str[i++] = c; str[i++] = c;
@ -350,9 +365,9 @@ char *LT_ReadString(char term)
LT_DoConvert(&str); LT_DoConvert(&str);
} }
gbRover->next = malloc(sizeof(LT_GarbageList)); gbRover->next = LT_Alloc(sizeof(LT_GarbageList));
gbRover = gbRover->next; gbRover = gbRover->next;
gbRover->ptr = realloc(str, i); gbRover->ptr = LT_ReAlloc(str, i);
gbRover->next = NULL; gbRover->next = NULL;
return gbRover->ptr; return gbRover->ptr;
@ -363,7 +378,6 @@ char *LT_Escaper(char *str, size_t pos, char escape)
switch(escape) switch(escape)
{ {
case '\\': case '\'': case '"': str[pos] = escape; break; case '\\': case '\'': case '"': str[pos] = escape; break;
case 'C': str[pos] = '\x1C'; break;
case 'a': str[pos] = '\a'; break; case 'a': str[pos] = '\a'; break;
case 'b': str[pos] = '\b'; break; case 'b': str[pos] = '\b'; break;
case 'f': str[pos] = '\f'; break; case 'f': str[pos] = '\f'; break;
@ -374,8 +388,7 @@ char *LT_Escaper(char *str, size_t pos, char escape)
case 'x': // [marrub] THIS ONE IS FUN case 'x': // [marrub] THIS ONE IS FUN
for(unsigned int i = 0;;) for(unsigned int i = 0;;)
{ {
char c; int c = fgetc(parseFile);
fread(&c, 1, 1, parseFile);
switch(c) switch(c)
{ {
@ -397,7 +410,7 @@ char *LT_Escaper(char *str, size_t pos, char escape)
case 'f': case 'F': i = i * 16 + 0xF; break; case 'f': case 'F': i = i * 16 + 0xF; break;
default: default:
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
str[pos] = i; str[pos] = i;
break; break;
} }
@ -408,7 +421,7 @@ char *LT_Escaper(char *str, size_t pos, char escape)
case '0': case '1': case '2': case '3': case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7': case '4': case '5': case '6': case '7':
{ {
char c = escape; int c = escape;
unsigned int i = 0; unsigned int i = 0;
for(unsigned int n = 2; n != 0; n--) for(unsigned int n = 2; n != 0; n--)
@ -424,12 +437,12 @@ char *LT_Escaper(char *str, size_t pos, char escape)
case '6': i = i * 8 + 06; break; case '6': i = i * 8 + 06; break;
case '7': i = i * 8 + 07; break; case '7': i = i * 8 + 07; break;
default: default:
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
str[pos] = i; str[pos] = i;
return str; return str;
} }
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
} }
str[pos] = i; str[pos] = i;
@ -447,12 +460,10 @@ char *LT_Escaper(char *str, size_t pos, char escape)
LT_Token LT_GetToken() LT_Token LT_GetToken()
{ {
char c;
LT_Token tk = { 0 }; LT_Token tk = { 0 };
int c = fgetc(parseFile);
fread(&c, 1, 1, parseFile); if(c == EOF)
if(feof(parseFile))
{ {
tk.token = LT_TkNames[TOK_EOF]; tk.token = LT_TkNames[TOK_EOF];
tk.string = NULL; tk.string = NULL;
@ -462,9 +473,9 @@ LT_Token LT_GetToken()
while(isspace(c) && c != '\n') while(isspace(c) && c != '\n')
{ {
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(feof(parseFile)) // [marrub] This could have caused issues if there was whitespace before EOF. if(c == EOF) // [marrub] This could have caused issues if there was whitespace before EOF.
{ {
tk.token = LT_TkNames[TOK_EOF]; tk.token = LT_TkNames[TOK_EOF];
tk.string = NULL; tk.string = NULL;
@ -496,7 +507,7 @@ LT_Token LT_GetToken()
// but sometimes I really do care about my sanity. And wrists. // but sometimes I really do care about my sanity. And wrists.
#define DoubleTokDef(ch, t1, t2) \ #define DoubleTokDef(ch, t1, t2) \
case ch: \ case ch: \
fread(&c, 1, 1, parseFile); \ c = fgetc(parseFile); \
\ \
if(c == ch) \ if(c == ch) \
{ \ { \
@ -505,7 +516,7 @@ LT_Token LT_GetToken()
else \ else \
{ \ { \
tk.token = LT_TkNames[t1]; \ tk.token = LT_TkNames[t1]; \
fseek(parseFile, -1, SEEK_CUR); \ ungetc(c, parseFile); \
} \ } \
\ \
return tk; return tk;
@ -519,7 +530,7 @@ LT_Token LT_GetToken()
// [marrub] Special god damn snowflakes // [marrub] Special god damn snowflakes
case '>': case '>':
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(c == '=') if(c == '=')
{ {
@ -532,12 +543,12 @@ LT_Token LT_GetToken()
else else
{ {
tk.token = LT_TkNames[TOK_CmpGT]; tk.token = LT_TkNames[TOK_CmpGT];
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
} }
return tk; return tk;
case '<': case '<':
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(c == '=') if(c == '=')
{ {
@ -554,12 +565,12 @@ LT_Token LT_GetToken()
else else
{ {
tk.token = LT_TkNames[TOK_CmpLT]; tk.token = LT_TkNames[TOK_CmpLT];
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
} }
return tk; return tk;
case '!': case '!':
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(c == '=') if(c == '=')
{ {
@ -568,12 +579,12 @@ LT_Token LT_GetToken()
else else
{ {
tk.token = LT_TkNames[TOK_Not]; tk.token = LT_TkNames[TOK_Not];
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
} }
return tk; return tk;
case '~': case '~':
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(c == '=') if(c == '=')
{ {
@ -581,14 +592,14 @@ LT_Token LT_GetToken()
} }
else else
{ {
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
LT_Assert(true, "LT_GetToken: Syntax error"); // [marrub] Yet more error checking that was forgotten before. LT_Assert(true, "LT_GetToken: Syntax error"); // [marrub] Yet more error checking that was forgotten before.
} }
return tk; return tk;
// [zombie] extra tokens // [zombie] extra tokens
case '/': case '/':
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(c == '/') if(c == '/')
{ {
@ -605,12 +616,12 @@ LT_Token LT_GetToken()
else else
{ {
tk.token = LT_TkNames[TOK_Div]; tk.token = LT_TkNames[TOK_Div];
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
} }
return tk; return tk;
case '*': case '*':
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(c == '/') if(c == '/')
{ {
@ -623,12 +634,12 @@ LT_Token LT_GetToken()
else else
{ {
tk.token = LT_TkNames[TOK_Mul]; tk.token = LT_TkNames[TOK_Mul];
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
} }
return tk; return tk;
case '-': case '-':
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if(c == '-') if(c == '-')
{ {
@ -641,12 +652,12 @@ LT_Token LT_GetToken()
else else
{ {
tk.token = LT_TkNames[TOK_Sub]; tk.token = LT_TkNames[TOK_Sub];
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
} }
return tk; return tk;
case '+': case '+':
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
if (c == '/') if (c == '/')
{ {
@ -659,7 +670,7 @@ LT_Token LT_GetToken()
else else
{ {
tk.token = LT_TkNames[TOK_Add]; tk.token = LT_TkNames[TOK_Add];
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
} }
return tk; return tk;
@ -699,7 +710,7 @@ LT_Token LT_GetToken()
if(isdigit(c)) if(isdigit(c))
{ {
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
tk.string = LT_ReadNumber(); tk.string = LT_ReadNumber();
tk.token = LT_TkNames[TOK_Number]; tk.token = LT_TkNames[TOK_Number];
@ -708,14 +719,14 @@ LT_Token LT_GetToken()
if(isalpha(c) || c == '_') if(isalpha(c) || c == '_')
{ {
size_t i = 0, str_blocks = 1; size_t i = 0, strBlocks = 1;
char *str = malloc(TOKEN_STR_BLOCK_LENGTH); char *str = LT_Alloc(TOKEN_STR_BLOCK_LENGTH);
while(!(feof(parseFile)) && (isalnum(c) || c == '_')) while(c != EOF && (isalnum(c) || c == '_'))
{ {
if(i > TOKEN_STR_BLOCK_LENGTH) if(i > (TOKEN_STR_BLOCK_LENGTH * strBlocks))
{ {
realloc(str, TOKEN_STR_BLOCK_LENGTH * str_blocks++); str = LT_ReAlloc(str, TOKEN_STR_BLOCK_LENGTH * ++strBlocks);
} }
str[i++] = c; str[i++] = c;
@ -725,7 +736,7 @@ LT_Token LT_GetToken()
str[i++] = (isspace(c) || isprint(c)) ? c : ' '; str[i++] = (isspace(c) || isprint(c)) ? c : ' ';
} }
fread(&c, 1, 1, parseFile); c = fgetc(parseFile);
} }
str[i++] = '\0'; // [marrub] Completely forgot this line earlier. Really screwed up everything. str[i++] = '\0'; // [marrub] Completely forgot this line earlier. Really screwed up everything.
@ -735,23 +746,23 @@ LT_Token LT_GetToken()
LT_DoConvert(&str); LT_DoConvert(&str);
} }
gbRover->next = malloc(sizeof(LT_GarbageList)); gbRover->next = LT_Alloc(sizeof(LT_GarbageList));
gbRover = gbRover->next; gbRover = gbRover->next;
gbRover->ptr = realloc(str, i); gbRover->ptr = LT_ReAlloc(str, i);
gbRover->next = NULL; gbRover->next = NULL;
fseek(parseFile, -1, SEEK_CUR); ungetc(c, parseFile);
tk.string = gbRover->ptr; tk.string = gbRover->ptr;
tk.token = LT_TkNames[TOK_Identi]; tk.token = LT_TkNames[TOK_Identi];
return tk; return tk;
} }
tk.string = malloc(2); tk.string = LT_Alloc(2);
tk.string[0] = c; tk.string[0] = c;
tk.string[1] = '\0'; tk.string[1] = '\0';
gbRover->next = malloc(sizeof(LT_GarbageList)); gbRover->next = LT_Alloc(sizeof(LT_GarbageList));
gbRover = gbRover->next; gbRover = gbRover->next;
gbRover->ptr = tk.string; gbRover->ptr = tk.string;
gbRover->next = NULL; gbRover->next = NULL;