/*****************************************************************************/
/* */
-/* scanner.c */
+/* scanner.c */
/* */
-/* The scanner for the ca65 macroassembler */
+/* The scanner for the ca65 macroassembler */
/* */
/* */
/* */
/*****************************************************************************/
-/* Data */
+/* Data */
/*****************************************************************************/
/* Struct to handle include files. */
typedef struct InputFile InputFile;
struct InputFile {
- FILE* F; /* Input file descriptor */
- FilePos Pos; /* Position in file */
- token_t Tok; /* Last token */
- int C; /* Last character */
+ FILE* F; /* Input file descriptor */
+ FilePos Pos; /* Position in file */
+ token_t Tok; /* Last token */
+ int C; /* Last character */
StrBuf Line; /* The current input line */
int IncSearchPath; /* True if we've added a search path */
int BinSearchPath; /* True if we've added a search path */
- InputFile* Next; /* Linked list of input files */
+ InputFile* Next; /* Linked list of input files */
};
/* Struct to handle textual input data */
typedef struct InputData InputData;
struct InputData {
- char* Text; /* Pointer to the text data */
- const char* Pos; /* Pointer to current position */
- int Malloced; /* Memory was malloced */
- token_t Tok; /* Last token */
- int C; /* Last character */
- InputData* Next; /* Linked list of input data */
+ char* Text; /* Pointer to the text data */
+ const char* Pos; /* Pointer to current position */
+ int Malloced; /* Memory was malloced */
+ token_t Tok; /* Last token */
+ int C; /* Last character */
+ InputData* Next; /* Linked list of input data */
};
/* Input source: Either file or data */
/* Input source: Either file or data */
struct CharSource {
CharSource* Next; /* Linked list of char sources */
- token_t Tok; /* Last token */
- int C; /* Last character */
+ token_t Tok; /* Last token */
+ int C; /* Last character */
const CharSourceFunctions* Func; /* Pointer to function table */
union {
InputFile File; /* File data */
/* Current input variables */
static CharSource* Source = 0; /* Current char source */
-static unsigned FCount = 0; /* Count of input files */
-static int C = 0; /* Current input character */
+static unsigned FCount = 0; /* Count of input files */
+static int C = 0; /* Current input character */
/* Force end of assembly */
-int ForcedEnd = 0;
+int ForcedEnd = 0;
/* List of dot keywords with the corresponding tokens */
struct DotKeyword {
- const char* Key; /* MUST be first field */
+ const char* Key; /* MUST be first field */
token_t Tok;
} DotKeywords [] = {
- { ".A16", TOK_A16 },
- { ".A8", TOK_A8 },
- { ".ADDR", TOK_ADDR },
- { ".ALIGN", TOK_ALIGN },
- { ".AND", TOK_BOOLAND },
- { ".ASCIIZ", TOK_ASCIIZ },
+ { ".A16", TOK_A16 },
+ { ".A8", TOK_A8 },
+ { ".ADDR", TOK_ADDR },
+ { ".ALIGN", TOK_ALIGN },
+ { ".AND", TOK_BOOLAND },
+ { ".ASCIIZ", TOK_ASCIIZ },
{ ".ASSERT", TOK_ASSERT },
- { ".AUTOIMPORT", TOK_AUTOIMPORT },
+ { ".AUTOIMPORT", TOK_AUTOIMPORT },
{ ".BANK", TOK_BANK },
{ ".BANKBYTE", TOK_BANKBYTE },
{ ".BANKBYTES", TOK_BANKBYTES },
- { ".BITAND", TOK_AND },
- { ".BITNOT", TOK_NOT },
- { ".BITOR", TOK_OR },
- { ".BITXOR", TOK_XOR },
- { ".BLANK", TOK_BLANK },
- { ".BSS", TOK_BSS },
- { ".BYT", TOK_BYTE },
- { ".BYTE", TOK_BYTE },
- { ".CASE", TOK_CASE },
- { ".CHARMAP", TOK_CHARMAP },
- { ".CODE", TOK_CODE },
- { ".CONCAT", TOK_CONCAT },
- { ".CONDES", TOK_CONDES },
- { ".CONST", TOK_CONST },
- { ".CONSTRUCTOR", TOK_CONSTRUCTOR },
- { ".CPU", TOK_CPU },
- { ".DATA", TOK_DATA },
- { ".DBG", TOK_DBG },
- { ".DBYT", TOK_DBYT },
- { ".DEBUGINFO", TOK_DEBUGINFO },
- { ".DEF", TOK_DEFINED },
- { ".DEFINE", TOK_DEFINE },
- { ".DEFINED", TOK_DEFINED },
+ { ".BITAND", TOK_AND },
+ { ".BITNOT", TOK_NOT },
+ { ".BITOR", TOK_OR },
+ { ".BITXOR", TOK_XOR },
+ { ".BLANK", TOK_BLANK },
+ { ".BSS", TOK_BSS },
+ { ".BYT", TOK_BYTE },
+ { ".BYTE", TOK_BYTE },
+ { ".CASE", TOK_CASE },
+ { ".CHARMAP", TOK_CHARMAP },
+ { ".CODE", TOK_CODE },
+ { ".CONCAT", TOK_CONCAT },
+ { ".CONDES", TOK_CONDES },
+ { ".CONST", TOK_CONST },
+ { ".CONSTRUCTOR", TOK_CONSTRUCTOR },
+ { ".CPU", TOK_CPU },
+ { ".DATA", TOK_DATA },
+ { ".DBG", TOK_DBG },
+ { ".DBYT", TOK_DBYT },
+ { ".DEBUGINFO", TOK_DEBUGINFO },
+ { ".DEF", TOK_DEFINED },
+ { ".DEFINE", TOK_DEFINE },
+ { ".DEFINED", TOK_DEFINED },
{ ".DELMAC", TOK_DELMAC },
{ ".DELMACRO", TOK_DELMAC },
- { ".DESTRUCTOR", TOK_DESTRUCTOR },
- { ".DWORD", TOK_DWORD },
- { ".ELSE", TOK_ELSE },
- { ".ELSEIF", TOK_ELSEIF },
- { ".END", TOK_END },
+ { ".DESTRUCTOR", TOK_DESTRUCTOR },
+ { ".DWORD", TOK_DWORD },
+ { ".ELSE", TOK_ELSE },
+ { ".ELSEIF", TOK_ELSEIF },
+ { ".END", TOK_END },
{ ".ENDENUM", TOK_ENDENUM },
- { ".ENDIF", TOK_ENDIF },
- { ".ENDMAC", TOK_ENDMACRO },
- { ".ENDMACRO", TOK_ENDMACRO },
- { ".ENDPROC", TOK_ENDPROC },
- { ".ENDREP", TOK_ENDREP },
- { ".ENDREPEAT", TOK_ENDREP },
+ { ".ENDIF", TOK_ENDIF },
+ { ".ENDMAC", TOK_ENDMACRO },
+ { ".ENDMACRO", TOK_ENDMACRO },
+ { ".ENDPROC", TOK_ENDPROC },
+ { ".ENDREP", TOK_ENDREP },
+ { ".ENDREPEAT", TOK_ENDREP },
{ ".ENDSCOPE", TOK_ENDSCOPE },
- { ".ENDSTRUCT", TOK_ENDSTRUCT },
- { ".ENDUNION", TOK_ENDUNION },
+ { ".ENDSTRUCT", TOK_ENDSTRUCT },
+ { ".ENDUNION", TOK_ENDUNION },
{ ".ENUM", TOK_ENUM },
- { ".ERROR", TOK_ERROR },
- { ".EXITMAC", TOK_EXITMACRO },
- { ".EXITMACRO", TOK_EXITMACRO },
- { ".EXPORT", TOK_EXPORT },
- { ".EXPORTZP", TOK_EXPORTZP },
- { ".FARADDR", TOK_FARADDR },
+ { ".ERROR", TOK_ERROR },
+ { ".EXITMAC", TOK_EXITMACRO },
+ { ".EXITMACRO", TOK_EXITMACRO },
+ { ".EXPORT", TOK_EXPORT },
+ { ".EXPORTZP", TOK_EXPORTZP },
+ { ".FARADDR", TOK_FARADDR },
{ ".FATAL", TOK_FATAL },
- { ".FEATURE", TOK_FEATURE },
- { ".FILEOPT", TOK_FILEOPT },
- { ".FOPT", TOK_FILEOPT },
+ { ".FEATURE", TOK_FEATURE },
+ { ".FILEOPT", TOK_FILEOPT },
+ { ".FOPT", TOK_FILEOPT },
{ ".FORCEIMPORT", TOK_FORCEIMPORT },
- { ".FORCEWORD", TOK_FORCEWORD },
- { ".GLOBAL", TOK_GLOBAL },
- { ".GLOBALZP", TOK_GLOBALZP },
+ { ".FORCEWORD", TOK_FORCEWORD },
+ { ".GLOBAL", TOK_GLOBAL },
+ { ".GLOBALZP", TOK_GLOBALZP },
{ ".HIBYTE", TOK_HIBYTE },
{ ".HIBYTES", TOK_HIBYTES },
{ ".HIWORD", TOK_HIWORD },
- { ".I16", TOK_I16 },
- { ".I8", TOK_I8 },
+ { ".I16", TOK_I16 },
+ { ".I8", TOK_I8 },
{ ".IDENT", TOK_MAKEIDENT },
- { ".IF", TOK_IF },
- { ".IFBLANK", TOK_IFBLANK },
- { ".IFCONST", TOK_IFCONST },
- { ".IFDEF", TOK_IFDEF },
- { ".IFNBLANK", TOK_IFNBLANK },
- { ".IFNCONST", TOK_IFNCONST },
- { ".IFNDEF", TOK_IFNDEF },
- { ".IFNREF", TOK_IFNREF },
- { ".IFP02", TOK_IFP02 },
- { ".IFP816", TOK_IFP816 },
- { ".IFPC02", TOK_IFPC02 },
- { ".IFPSC02", TOK_IFPSC02 },
- { ".IFREF", TOK_IFREF },
- { ".IMPORT", TOK_IMPORT },
- { ".IMPORTZP", TOK_IMPORTZP },
- { ".INCBIN", TOK_INCBIN },
- { ".INCLUDE", TOK_INCLUDE },
+ { ".IF", TOK_IF },
+ { ".IFBLANK", TOK_IFBLANK },
+ { ".IFCONST", TOK_IFCONST },
+ { ".IFDEF", TOK_IFDEF },
+ { ".IFNBLANK", TOK_IFNBLANK },
+ { ".IFNCONST", TOK_IFNCONST },
+ { ".IFNDEF", TOK_IFNDEF },
+ { ".IFNREF", TOK_IFNREF },
+ { ".IFP02", TOK_IFP02 },
+ { ".IFP816", TOK_IFP816 },
+ { ".IFPC02", TOK_IFPC02 },
+ { ".IFPSC02", TOK_IFPSC02 },
+ { ".IFREF", TOK_IFREF },
+ { ".IMPORT", TOK_IMPORT },
+ { ".IMPORTZP", TOK_IMPORTZP },
+ { ".INCBIN", TOK_INCBIN },
+ { ".INCLUDE", TOK_INCLUDE },
{ ".INTERRUPTOR", TOK_INTERRUPTOR },
- { ".LEFT", TOK_LEFT },
- { ".LINECONT", TOK_LINECONT },
- { ".LIST", TOK_LIST },
- { ".LISTBYTES", TOK_LISTBYTES },
+ { ".LEFT", TOK_LEFT },
+ { ".LINECONT", TOK_LINECONT },
+ { ".LIST", TOK_LIST },
+ { ".LISTBYTES", TOK_LISTBYTES },
{ ".LOBYTE", TOK_LOBYTE },
{ ".LOBYTES", TOK_LOBYTES },
- { ".LOCAL", TOK_LOCAL },
- { ".LOCALCHAR", TOK_LOCALCHAR },
+ { ".LOCAL", TOK_LOCAL },
+ { ".LOCALCHAR", TOK_LOCALCHAR },
{ ".LOWORD", TOK_LOWORD },
- { ".MAC", TOK_MACRO },
- { ".MACPACK", TOK_MACPACK },
- { ".MACRO", TOK_MACRO },
- { ".MATCH", TOK_MATCH },
+ { ".MAC", TOK_MACRO },
+ { ".MACPACK", TOK_MACPACK },
+ { ".MACRO", TOK_MACRO },
+ { ".MATCH", TOK_MATCH },
{ ".MAX", TOK_MAX },
- { ".MID", TOK_MID },
+ { ".MID", TOK_MID },
{ ".MIN", TOK_MIN },
- { ".MOD", TOK_MOD },
- { ".NOT", TOK_BOOLNOT },
- { ".NULL", TOK_NULL },
- { ".OR", TOK_BOOLOR },
- { ".ORG", TOK_ORG },
- { ".OUT", TOK_OUT },
- { ".P02", TOK_P02 },
- { ".P816", TOK_P816 },
- { ".PAGELEN", TOK_PAGELENGTH },
- { ".PAGELENGTH", TOK_PAGELENGTH },
- { ".PARAMCOUNT", TOK_PARAMCOUNT },
- { ".PC02", TOK_PC02 },
+ { ".MOD", TOK_MOD },
+ { ".NOT", TOK_BOOLNOT },
+ { ".NULL", TOK_NULL },
+ { ".OR", TOK_BOOLOR },
+ { ".ORG", TOK_ORG },
+ { ".OUT", TOK_OUT },
+ { ".P02", TOK_P02 },
+ { ".P816", TOK_P816 },
+ { ".PAGELEN", TOK_PAGELENGTH },
+ { ".PAGELENGTH", TOK_PAGELENGTH },
+ { ".PARAMCOUNT", TOK_PARAMCOUNT },
+ { ".PC02", TOK_PC02 },
{ ".POPCPU", TOK_POPCPU },
- { ".POPSEG", TOK_POPSEG },
- { ".PROC", TOK_PROC },
- { ".PSC02", TOK_PSC02 },
+ { ".POPSEG", TOK_POPSEG },
+ { ".PROC", TOK_PROC },
+ { ".PSC02", TOK_PSC02 },
{ ".PUSHCPU", TOK_PUSHCPU },
- { ".PUSHSEG", TOK_PUSHSEG },
- { ".REF", TOK_REFERENCED },
- { ".REFERENCED", TOK_REFERENCED },
- { ".RELOC", TOK_RELOC },
- { ".REPEAT", TOK_REPEAT },
- { ".RES", TOK_RES },
- { ".RIGHT", TOK_RIGHT },
- { ".RODATA", TOK_RODATA },
+ { ".PUSHSEG", TOK_PUSHSEG },
+ { ".REF", TOK_REFERENCED },
+ { ".REFERENCED", TOK_REFERENCED },
+ { ".RELOC", TOK_RELOC },
+ { ".REPEAT", TOK_REPEAT },
+ { ".RES", TOK_RES },
+ { ".RIGHT", TOK_RIGHT },
+ { ".RODATA", TOK_RODATA },
{ ".SCOPE", TOK_SCOPE },
- { ".SEGMENT", TOK_SEGMENT },
+ { ".SEGMENT", TOK_SEGMENT },
{ ".SET", TOK_SET },
- { ".SETCPU", TOK_SETCPU },
- { ".SHL", TOK_SHL },
- { ".SHR", TOK_SHR },
+ { ".SETCPU", TOK_SETCPU },
+ { ".SHL", TOK_SHL },
+ { ".SHR", TOK_SHR },
{ ".SIZEOF", TOK_SIZEOF },
- { ".SMART", TOK_SMART },
+ { ".SMART", TOK_SMART },
{ ".SPRINTF", TOK_SPRINTF },
- { ".STRAT", TOK_STRAT },
- { ".STRING", TOK_STRING },
- { ".STRLEN", TOK_STRLEN },
+ { ".STRAT", TOK_STRAT },
+ { ".STRING", TOK_STRING },
+ { ".STRLEN", TOK_STRLEN },
{ ".STRUCT", TOK_STRUCT },
- { ".SUNPLUS", TOK_SUNPLUS },
+ { ".SUNPLUS", TOK_SUNPLUS },
{ ".TAG", TOK_TAG },
- { ".TCOUNT", TOK_TCOUNT },
- { ".TIME", TOK_TIME },
+ { ".TCOUNT", TOK_TCOUNT },
+ { ".TIME", TOK_TIME },
{ ".UNDEF", TOK_UNDEF },
{ ".UNDEFINE", TOK_UNDEF },
{ ".UNION", TOK_UNION },
{ ".VERSION", TOK_VERSION },
- { ".WARNING", TOK_WARNING },
- { ".WORD", TOK_WORD },
- { ".XMATCH", TOK_XMATCH },
- { ".XOR", TOK_BOOLXOR },
- { ".ZEROPAGE", TOK_ZEROPAGE },
+ { ".WARNING", TOK_WARNING },
+ { ".WORD", TOK_WORD },
+ { ".XMATCH", TOK_XMATCH },
+ { ".XOR", TOK_BOOLXOR },
+ { ".ZEROPAGE", TOK_ZEROPAGE },
};
S->C = C;
/* Use the new input source */
- S->Next = Source;
+ S->Next = Source;
Source = S;
/* Read the first character from the new file */
/* Main file */
F = fopen (Name, "r");
if (F == 0) {
- Fatal ("Cannot open input file `%s': %s", Name, strerror (errno));
+ Fatal ("Cannot open input file `%s': %s", Name, strerror (errno));
}
} else {
- /* We are on include level. Search for the file in the include
- * directories.
- */
- PathName = SearchFile (IncSearchPath, Name);
- if (PathName == 0 || (F = fopen (PathName, "r")) == 0) {
- /* Not found or cannot open, print an error and bail out */
- Error ("Cannot open include file `%s': %s", Name, strerror (errno));
+ /* We are on include level. Search for the file in the include
+ * directories.
+ */
+ PathName = SearchFile (IncSearchPath, Name);
+ if (PathName == 0 || (F = fopen (PathName, "r")) == 0) {
+ /* Not found or cannot open, print an error and bail out */
+ Error ("Cannot open include file `%s': %s", Name, strerror (errno));
goto ExitPoint;
- }
+ }
- /* Use the path name from now on */
+ /* Use the path name from now on */
Name = PathName;
}
{
/* Cleanup the current stuff */
if (S->V.Data.Malloced) {
- xfree (S->V.Data.Text);
+ xfree (S->V.Data.Text);
}
}
/*****************************************************************************/
-/* Character classification functions */
+/* Character classification functions */
/*****************************************************************************/
int IsIdChar (int C)
/* Return true if the character is a valid character for an identifier */
{
- return IsAlNum (C) ||
- (C == '_') ||
- (C == '@' && AtInIdents) ||
- (C == '$' && DollarInIdents);
+ return IsAlNum (C) ||
+ (C == '_') ||
+ (C == '@' && AtInIdents) ||
+ (C == '$' && DollarInIdents);
}
/*****************************************************************************/
-/* Code */
+/* Code */
/*****************************************************************************/
/* Convert a digit into it's numerical representation */
{
if (IsDigit (C)) {
- return C - '0';
+ return C - '0';
} else {
- return toupper (C) - 'A' + 10;
+ return toupper (C) - 'A' + 10;
}
}
/* If we aren't in ignore case mode, we have to uppercase the keyword */
if (!IgnoreCase) {
- UpcaseSVal ();
+ UpcaseSVal ();
}
/* Search for the keyword */
R = bsearch (&K, DotKeywords, sizeof (DotKeywords) / sizeof (DotKeywords [0]),
- sizeof (DotKeywords [0]), CmpDotKeyword);
+ sizeof (DotKeywords [0]), CmpDotKeyword);
if (R != 0) {
- return R->Tok;
+ return R->Tok;
} else {
- return TOK_NONE;
+ return TOK_NONE;
}
}
/* Read the identifier */
do {
SB_AppendChar (&CurTok.SVal, C);
- NextChar ();
+ NextChar ();
} while (IsIdChar (C));
SB_Terminate (&CurTok.SVal);
/* If we should ignore case, convert the identifier to upper case */
if (IgnoreCase) {
- UpcaseSVal ();
+ UpcaseSVal ();
}
}
/* Read the string */
while (1) {
- if (C == StringTerm) {
- break;
- }
- if (C == '\n' || C == EOF) {
- Error ("Newline in string constant");
- break;
- }
-
- /* Append the char to the string */
+ if (C == StringTerm) {
+ break;
+ }
+ if (C == '\n' || C == EOF) {
+ Error ("Newline in string constant");
+ break;
+ }
+
+ /* Append the char to the string */
SB_AppendChar (&CurTok.SVal, C);
- /* Skip the character */
- NextChar ();
+ /* Skip the character */
+ NextChar ();
}
/* Skip the trailing terminator */
/* If we've a forced end of assembly, don't read further */
if (ForcedEnd) {
- CurTok.Tok = TOK_EOF;
- return;
+ CurTok.Tok = TOK_EOF;
+ return;
}
Restart:
Again:
/* Skip whitespace, remember if we had some */
if ((CurTok.WS = IsBlank (C)) != 0) {
- do {
- NextChar ();
+ do {
+ NextChar ();
} while (IsBlank (C));
}
/* Hex number or PC symbol? */
if (C == '$') {
- NextChar ();
-
- /* Hex digit must follow or DollarIsPC must be enabled */
- if (!IsXDigit (C)) {
- if (DollarIsPC) {
- CurTok.Tok = TOK_PC;
- return;
- } else {
- Error ("Hexadecimal digit expected");
- }
- }
-
- /* Read the number */
- CurTok.IVal = 0;
+ NextChar ();
+
+ /* Hex digit must follow or DollarIsPC must be enabled */
+ if (!IsXDigit (C)) {
+ if (DollarIsPC) {
+ CurTok.Tok = TOK_PC;
+ return;
+ } else {
+ Error ("Hexadecimal digit expected");
+ }
+ }
+
+ /* Read the number */
+ CurTok.IVal = 0;
while (1) {
if (UnderlineInNumbers && C == '_') {
while (C == '_') {
}
}
- /* This is an integer constant */
- CurTok.Tok = TOK_INTCON;
- return;
+ /* This is an integer constant */
+ CurTok.Tok = TOK_INTCON;
+ return;
}
/* Binary number? */
if (C == '%') {
- NextChar ();
+ NextChar ();
- /* 0 or 1 must follow */
- if (!IsBDigit (C)) {
- Error ("Binary digit expected");
- }
+ /* 0 or 1 must follow */
+ if (!IsBDigit (C)) {
+ Error ("Binary digit expected");
+ }
- /* Read the number */
+ /* Read the number */
CurTok.IVal = 0;
while (1) {
if (UnderlineInNumbers && C == '_') {
}
}
- /* This is an integer constant */
+ /* This is an integer constant */
CurTok.Tok = TOK_INTCON;
- return;
+ return;
}
/* Number? */
/* Convert the number using the given base */
CurTok.IVal = 0;
for (I = 0; I < Digits; ++I) {
- if (CurTok.IVal > Max) {
- Error ("Number out of range");
+ if (CurTok.IVal > Max) {
+ Error ("Number out of range");
CurTok.IVal = 0;
break;
- }
+ }
DVal = DigitVal (Buf[I]);
if (DVal > Base) {
Error ("Invalid digits in number");
CurTok.IVal = 0;
break;
}
- CurTok.IVal = (CurTok.IVal * Base) + DVal;
+ CurTok.IVal = (CurTok.IVal * Base) + DVal;
}
- /* This is an integer constant */
- CurTok.Tok = TOK_INTCON;
- return;
+ /* This is an integer constant */
+ CurTok.Tok = TOK_INTCON;
+ return;
}
/* Control command? */
if (C == '.') {
- /* Remember and skip the dot */
- NextChar ();
+ /* Remember and skip the dot */
+ NextChar ();
- /* Check if it's just a dot */
- if (!IsIdStart (C)) {
+ /* Check if it's just a dot */
+ if (!IsIdStart (C)) {
- /* Just a dot */
- CurTok.Tok = TOK_DOT;
+ /* Just a dot */
+ CurTok.Tok = TOK_DOT;
- } else {
+ } else {
- /* Read the remainder of the identifier */
+ /* Read the remainder of the identifier */
SB_AppendChar (&CurTok.SVal, '.');
- ReadIdent ();
-
- /* Dot keyword, search for it */
- CurTok.Tok = FindDotKeyword ();
- if (CurTok.Tok == TOK_NONE) {
-
- /* Not found */
- if (!LeadingDotInIdents) {
- /* Invalid pseudo instruction */
- Error ("`%m%p' is not a recognized control command", &CurTok.SVal);
- goto Again;
- }
-
- /* An identifier with a dot. Check if it's a define style
- * macro.
- */
- if ((M = FindDefine (&CurTok.SVal)) != 0) {
- /* This is a define style macro - expand it */
- MacExpandStart (M);
- goto Restart;
- }
-
- /* Just an identifier with a dot */
- CurTok.Tok = TOK_IDENT;
- }
-
- }
- return;
+ ReadIdent ();
+
+ /* Dot keyword, search for it */
+ CurTok.Tok = FindDotKeyword ();
+ if (CurTok.Tok == TOK_NONE) {
+
+ /* Not found */
+ if (!LeadingDotInIdents) {
+ /* Invalid pseudo instruction */
+ Error ("`%m%p' is not a recognized control command", &CurTok.SVal);
+ goto Again;
+ }
+
+ /* An identifier with a dot. Check if it's a define style
+ * macro.
+ */
+ if ((M = FindDefine (&CurTok.SVal)) != 0) {
+ /* This is a define style macro - expand it */
+ MacExpandStart (M);
+ goto Restart;
+ }
+
+ /* Just an identifier with a dot */
+ CurTok.Tok = TOK_IDENT;
+ }
+
+ }
+ return;
}
/* Indirect op for sweet16 cpu. Must check this before checking for local
/* Local symbol? */
if (C == LocalStart) {
- /* Read the identifier. */
- ReadIdent ();
+ /* Read the identifier. */
+ ReadIdent ();
- /* Start character alone is not enough */
+ /* Start character alone is not enough */
if (SB_GetLen (&CurTok.SVal) == 1) {
- Error ("Invalid cheap local symbol");
- goto Again;
- }
+ Error ("Invalid cheap local symbol");
+ goto Again;
+ }
- /* A local identifier */
+ /* A local identifier */
CurTok.Tok = TOK_LOCAL_IDENT;
- return;
+ return;
}
/* Identifier or keyword? */
if (IsIdStart (C)) {
- /* Read the identifier */
- ReadIdent ();
+ /* Read the identifier */
+ ReadIdent ();
- /* Check for special names. Bail out if we have identified the type of
- * the token. Go on if the token is an identifier.
- */
+ /* Check for special names. Bail out if we have identified the type of
+ * the token. Go on if the token is an identifier.
+ */
if (SB_GetLen (&CurTok.SVal) == 1) {
- switch (toupper (SB_AtUnchecked (&CurTok.SVal, 0))) {
+ switch (toupper (SB_AtUnchecked (&CurTok.SVal, 0))) {
- case 'A':
+ case 'A':
if (C == ':') {
NextChar ();
CurTok.Tok = TOK_OVERRIDE_ABS;
} else {
- CurTok.Tok = TOK_A;
+ CurTok.Tok = TOK_A;
}
- return;
+ return;
case 'F':
if (C == ':') {
NextChar ();
CurTok.Tok = TOK_OVERRIDE_FAR;
- return;
+ return;
}
- break;
+ break;
- case 'S':
+ case 'S':
if (CPU == CPU_65816) {
CurTok.Tok = TOK_S;
return;
}
break;
- case 'X':
- CurTok.Tok = TOK_X;
- return;
+ case 'X':
+ CurTok.Tok = TOK_X;
+ return;
- case 'Y':
- CurTok.Tok = TOK_Y;
- return;
+ case 'Y':
+ CurTok.Tok = TOK_Y;
+ return;
case 'Z':
if (C == ':') {
NextChar ();
CurTok.Tok = TOK_OVERRIDE_ZP;
- return;
+ return;
}
break;
- default:
- break;
- }
+ default:
+ break;
+ }
- } else if (CPU == CPU_SWEET16 &&
+ } else if (CPU == CPU_SWEET16 &&
(CurTok.IVal = Sweet16Reg (&CurTok.SVal)) >= 0) {
/* A sweet16 register number in sweet16 mode */
}
- /* Check for define style macro */
- if ((M = FindDefine (&CurTok.SVal)) != 0) {
- /* Macro - expand it */
- MacExpandStart (M);
- goto Restart;
- } else {
- /* An identifier */
- CurTok.Tok = TOK_IDENT;
- }
- return;
+ /* Check for define style macro */
+ if ((M = FindDefine (&CurTok.SVal)) != 0) {
+ /* Macro - expand it */
+ MacExpandStart (M);
+ goto Restart;
+ } else {
+ /* An identifier */
+ CurTok.Tok = TOK_IDENT;
+ }
+ return;
}
/* Ok, let's do the switch */
CharAgain:
switch (C) {
- case '+':
- NextChar ();
- CurTok.Tok = TOK_PLUS;
- return;
+ case '+':
+ NextChar ();
+ CurTok.Tok = TOK_PLUS;
+ return;
- case '-':
- NextChar ();
- CurTok.Tok = TOK_MINUS;
- return;
+ case '-':
+ NextChar ();
+ CurTok.Tok = TOK_MINUS;
+ return;
- case '/':
- NextChar ();
+ case '/':
+ NextChar ();
if (C != '*') {
CurTok.Tok = TOK_DIV;
} else if (CComments) {
DoneCollection (&LineInfos);
goto Again;
}
- return;
-
- case '*':
- NextChar ();
- CurTok.Tok = TOK_MUL;
- return;
-
- case '^':
- NextChar ();
- CurTok.Tok = TOK_XOR;
- return;
-
- case '&':
- NextChar ();
- if (C == '&') {
- NextChar ();
- CurTok.Tok = TOK_BOOLAND;
- } else {
- CurTok.Tok = TOK_AND;
- }
- return;
-
- case '|':
- NextChar ();
- if (C == '|') {
- NextChar ();
- CurTok.Tok = TOK_BOOLOR;
- } else {
- CurTok.Tok = TOK_OR;
- }
- return;
-
- case ':':
- NextChar ();
- switch (C) {
-
- case ':':
- NextChar ();
- CurTok.Tok = TOK_NAMESPACE;
- break;
-
- case '-':
- CurTok.IVal = 0;
- do {
- --CurTok.IVal;
- NextChar ();
- } while (C == '-');
- CurTok.Tok = TOK_ULABEL;
- break;
-
- case '+':
- CurTok.IVal = 0;
- do {
- ++CurTok.IVal;
- NextChar ();
- } while (C == '+');
- CurTok.Tok = TOK_ULABEL;
- break;
+ return;
+
+ case '*':
+ NextChar ();
+ CurTok.Tok = TOK_MUL;
+ return;
+
+ case '^':
+ NextChar ();
+ CurTok.Tok = TOK_XOR;
+ return;
+
+ case '&':
+ NextChar ();
+ if (C == '&') {
+ NextChar ();
+ CurTok.Tok = TOK_BOOLAND;
+ } else {
+ CurTok.Tok = TOK_AND;
+ }
+ return;
+
+ case '|':
+ NextChar ();
+ if (C == '|') {
+ NextChar ();
+ CurTok.Tok = TOK_BOOLOR;
+ } else {
+ CurTok.Tok = TOK_OR;
+ }
+ return;
+
+ case ':':
+ NextChar ();
+ switch (C) {
+
+ case ':':
+ NextChar ();
+ CurTok.Tok = TOK_NAMESPACE;
+ break;
+
+ case '-':
+ CurTok.IVal = 0;
+ do {
+ --CurTok.IVal;
+ NextChar ();
+ } while (C == '-');
+ CurTok.Tok = TOK_ULABEL;
+ break;
+
+ case '+':
+ CurTok.IVal = 0;
+ do {
+ ++CurTok.IVal;
+ NextChar ();
+ } while (C == '+');
+ CurTok.Tok = TOK_ULABEL;
+ break;
case '=':
NextChar ();
CurTok.Tok = TOK_ASSIGN;
break;
- default:
- CurTok.Tok = TOK_COLON;
- break;
- }
- return;
-
- case ',':
- NextChar ();
- CurTok.Tok = TOK_COMMA;
- return;
-
- case ';':
- NextChar ();
- while (C != '\n' && C != EOF) {
- NextChar ();
- }
- goto CharAgain;
-
- case '#':
- NextChar ();
- CurTok.Tok = TOK_HASH;
- return;
-
- case '(':
- NextChar ();
- CurTok.Tok = TOK_LPAREN;
- return;
-
- case ')':
- NextChar ();
+ default:
+ CurTok.Tok = TOK_COLON;
+ break;
+ }
+ return;
+
+ case ',':
+ NextChar ();
+ CurTok.Tok = TOK_COMMA;
+ return;
+
+ case ';':
+ NextChar ();
+ while (C != '\n' && C != EOF) {
+ NextChar ();
+ }
+ goto CharAgain;
+
+ case '#':
+ NextChar ();
+ CurTok.Tok = TOK_HASH;
+ return;
+
+ case '(':
+ NextChar ();
+ CurTok.Tok = TOK_LPAREN;
+ return;
+
+ case ')':
+ NextChar ();
CurTok.Tok = TOK_RPAREN;
- return;
-
- case '[':
- NextChar ();
- CurTok.Tok = TOK_LBRACK;
- return;
-
- case ']':
- NextChar ();
- CurTok.Tok = TOK_RBRACK;
- return;
-
- case '{':
- NextChar ();
- CurTok.Tok = TOK_LCURLY;
- return;
-
- case '}':
- NextChar ();
- CurTok.Tok = TOK_RCURLY;
- return;
-
- case '<':
- NextChar ();
- if (C == '=') {
- NextChar ();
- CurTok.Tok = TOK_LE;
- } else if (C == '<') {
- NextChar ();
- CurTok.Tok = TOK_SHL;
- } else if (C == '>') {
- NextChar ();
- CurTok.Tok = TOK_NE;
- } else {
- CurTok.Tok = TOK_LT;
- }
- return;
-
- case '=':
- NextChar ();
- CurTok.Tok = TOK_EQ;
- return;
-
- case '!':
- NextChar ();
- CurTok.Tok = TOK_BOOLNOT;
- return;
-
- case '>':
- NextChar ();
- if (C == '=') {
- NextChar ();
- CurTok.Tok = TOK_GE;
- } else if (C == '>') {
- NextChar ();
- CurTok.Tok = TOK_SHR;
- } else {
- CurTok.Tok = TOK_GT;
- }
- return;
+ return;
+
+ case '[':
+ NextChar ();
+ CurTok.Tok = TOK_LBRACK;
+ return;
+
+ case ']':
+ NextChar ();
+ CurTok.Tok = TOK_RBRACK;
+ return;
+
+ case '{':
+ NextChar ();
+ CurTok.Tok = TOK_LCURLY;
+ return;
+
+ case '}':
+ NextChar ();
+ CurTok.Tok = TOK_RCURLY;
+ return;
+
+ case '<':
+ NextChar ();
+ if (C == '=') {
+ NextChar ();
+ CurTok.Tok = TOK_LE;
+ } else if (C == '<') {
+ NextChar ();
+ CurTok.Tok = TOK_SHL;
+ } else if (C == '>') {
+ NextChar ();
+ CurTok.Tok = TOK_NE;
+ } else {
+ CurTok.Tok = TOK_LT;
+ }
+ return;
+
+ case '=':
+ NextChar ();
+ CurTok.Tok = TOK_EQ;
+ return;
+
+ case '!':
+ NextChar ();
+ CurTok.Tok = TOK_BOOLNOT;
+ return;
+
+ case '>':
+ NextChar ();
+ if (C == '=') {
+ NextChar ();
+ CurTok.Tok = TOK_GE;
+ } else if (C == '>') {
+ NextChar ();
+ CurTok.Tok = TOK_SHR;
+ } else {
+ CurTok.Tok = TOK_GT;
+ }
+ return;
case '~':
- NextChar ();
- CurTok.Tok = TOK_NOT;
- return;
-
- case '\'':
- /* Hack: If we allow ' as terminating character for strings, read
- * the following stuff as a string, and check for a one character
- * string later.
- */
- if (LooseStringTerm) {
- ReadStringConst ('\'');
+ NextChar ();
+ CurTok.Tok = TOK_NOT;
+ return;
+
+ case '\'':
+ /* Hack: If we allow ' as terminating character for strings, read
+ * the following stuff as a string, and check for a one character
+ * string later.
+ */
+ if (LooseStringTerm) {
+ ReadStringConst ('\'');
if (SB_GetLen (&CurTok.SVal) == 1) {
- CurTok.IVal = SB_AtUnchecked (&CurTok.SVal, 0);
- CurTok.Tok = TOK_CHARCON;
- } else {
- CurTok.Tok = TOK_STRCON;
- }
- } else {
- /* Always a character constant */
- NextChar ();
- if (C == EOF || IsControl (C)) {
- Error ("Illegal character constant");
- goto CharAgain;
- }
- CurTok.IVal = C;
- CurTok.Tok = TOK_CHARCON;
- NextChar ();
- if (C != '\'') {
+ CurTok.IVal = SB_AtUnchecked (&CurTok.SVal, 0);
+ CurTok.Tok = TOK_CHARCON;
+ } else {
+ CurTok.Tok = TOK_STRCON;
+ }
+ } else {
+ /* Always a character constant */
+ NextChar ();
+ if (C == EOF || IsControl (C)) {
+ Error ("Illegal character constant");
+ goto CharAgain;
+ }
+ CurTok.IVal = C;
+ CurTok.Tok = TOK_CHARCON;
+ NextChar ();
+ if (C != '\'') {
if (!MissingCharTerm) {
Error ("Illegal character constant");
}
- } else {
- NextChar ();
- }
- }
- return;
-
- case '\"':
- ReadStringConst ('\"');
- CurTok.Tok = TOK_STRCON;
- return;
-
- case '\\':
- /* Line continuation? */
- if (LineCont) {
- NextChar ();
- if (C == '\n') {
- /* Handle as white space */
- NextChar ();
- C = ' ';
- goto Again;
- }
- }
- break;
+ } else {
+ NextChar ();
+ }
+ }
+ return;
+
+ case '\"':
+ ReadStringConst ('\"');
+ CurTok.Tok = TOK_STRCON;
+ return;
+
+ case '\\':
+ /* Line continuation? */
+ if (LineCont) {
+ NextChar ();
+ if (C == '\n') {
+ /* Handle as white space */
+ NextChar ();
+ C = ' ';
+ goto Again;
+ }
+ }
+ break;
case '\n':
- NextChar ();
- CurTok.Tok = TOK_SEP;
- return;
+ NextChar ();
+ CurTok.Tok = TOK_SEP;
+ return;
case EOF:
CheckInputStack ();
DoneCharSource ();
goto Again;
} else {
- CurTok.Tok = TOK_EOF;
+ CurTok.Tok = TOK_EOF;
}
return;
}
/* If we aren't in ignore case mode, we have to uppercase the identifier */
if (!IgnoreCase) {
- UpcaseSVal ();
+ UpcaseSVal ();
}
/* Do a linear search (a binary search is not worth the effort) */
for (I = 0; I < Count; ++I) {
- if (SB_CompareStr (&CurTok.SVal, Keys [I]) == 0) {
- /* Found it */
- return I;
- }
+ if (SB_CompareStr (&CurTok.SVal, Keys [I]) == 0) {
+ /* Found it */
+ return I;
+ }
}
/* Not found */
projects / cc65 / blobdiff