/*****************************************************************************/
/* */
-/* scanner.c */
+/* scanner.c */
/* */
-/* Configuration file scanner for the da65 disassembler */
+/* Configuration file scanner for the da65 disassembler */
/* */
/* */
/* */
-/* (C) 2000 Ullrich von Bassewitz */
-/* Wacholderweg 14 */
-/* D-70597 Stuttgart */
-/* EMail: uz@musoftware.de */
+/* (C) 2000-2005 Ullrich von Bassewitz */
+/* Römerstrasse 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
#include <stdio.h>
#include <string.h>
#include <errno.h>
-#include <ctype.h>
/* common */
+#include "chartype.h"
#include "xsprintf.h"
/* ld65 */
/*****************************************************************************/
-/* Data */
+/* Data */
/*****************************************************************************/
/* Current token and attributes */
-unsigned CfgTok;
-char CfgSVal [CFG_MAX_IDENT_LEN+1];
-long CfgIVal;
+unsigned InfoTok;
+char InfoSVal [CFG_MAX_IDENT_LEN+1];
+long InfoIVal;
/* Error location */
-unsigned CfgErrorLine;
-unsigned CfgErrorCol;
+unsigned InfoErrorLine;
+unsigned InfoErrorCol;
/* Input sources for the configuration */
-static const char* CfgFile = 0;
-static const char* CfgBuf = 0;
+static const char* InfoFile = 0;
/* Other input stuff */
-static int C = ' ';
-static unsigned InputLine = 1;
-static unsigned InputCol = 0;
-static FILE* InputFile = 0;
+static int C = ' ';
+static unsigned InputLine = 1;
+static unsigned InputCol = 0;
+static FILE* InputFile = 0;
/*****************************************************************************/
-/* Error handling */
+/* Error handling */
/*****************************************************************************/
-void CfgWarning (const char* Format, ...)
+void InfoWarning (const char* Format, ...)
/* Print a warning message adding file name and line number of the config file */
{
char Buf [512];
xvsprintf (Buf, sizeof (Buf), Format, ap);
va_end (ap);
- Warning ("%s(%u): %s", CfgFile, CfgErrorLine, Buf);
+ Warning ("%s(%u): %s", InfoFile, InfoErrorLine, Buf);
}
-void CfgError (const char* Format, ...)
+void InfoError (const char* Format, ...)
/* Print an error message adding file name and line number of the config file */
{
char Buf [512];
xvsprintf (Buf, sizeof (Buf), Format, ap);
va_end (ap);
- Error ("%s(%u): %s", CfgFile, CfgErrorLine, Buf);
+ Error ("%s(%u): %s", InfoFile, InfoErrorLine, Buf);
}
/*****************************************************************************/
-/* Code */
+/* Code */
/*****************************************************************************/
static void NextChar (void)
/* Read the next character from the input file */
{
- if (CfgBuf) {
- /* Read from buffer */
- C = (unsigned char)(*CfgBuf);
- if (C == 0) {
- C = EOF;
- } else {
- ++CfgBuf;
- }
- } else {
- /* Read from the file */
- C = getc (InputFile);
- }
+ /* Read from the file */
+ C = getc (InputFile);
/* Count columns */
if (C != EOF) {
- ++InputCol;
+ ++InputCol;
}
/* Count lines */
if (C == '\n') {
- ++InputLine;
- InputCol = 0;
+ ++InputLine;
+ InputCol = 0;
}
}
static unsigned DigitVal (int C)
/* Return the value for a numeric digit */
{
- if (isdigit (C)) {
- return C - '0';
+ if (IsDigit (C)) {
+ return C - '0';
} else {
- return toupper (C) - 'A' + 10;
+ return toupper (C) - 'A' + 10;
}
}
-void CfgNextTok (void)
+void InfoNextTok (void)
/* Read the next token from the input stream */
{
unsigned I;
-
+ int Esc;
Again:
/* Skip whitespace */
- while (isspace (C)) {
- NextChar ();
+ while (IsSpace (C)) {
+ NextChar ();
}
/* Remember the current position */
- CfgErrorLine = InputLine;
- CfgErrorCol = InputCol;
+ InfoErrorLine = InputLine;
+ InfoErrorCol = InputCol;
/* Identifier? */
- if (C == '_' || isalpha (C)) {
-
- /* Read the identifier */
- I = 0;
- while (C == '_' || isalnum (C)) {
- if (I < CFG_MAX_IDENT_LEN) {
- CfgSVal [I++] = C;
- }
- NextChar ();
- }
- CfgSVal [I] = '\0';
- CfgTok = CFGTOK_IDENT;
- return;
+ if (C == '_' || IsAlpha (C)) {
+
+ /* Read the identifier */
+ I = 0;
+ while (C == '_' || IsAlNum (C)) {
+ if (I < CFG_MAX_IDENT_LEN) {
+ InfoSVal [I++] = C;
+ }
+ NextChar ();
+ }
+ InfoSVal [I] = '\0';
+ InfoTok = INFOTOK_IDENT;
+ return;
}
/* Hex number? */
if (C == '$') {
- NextChar ();
- if (!isxdigit (C)) {
- CfgError ("Hex digit expected");
- }
- CfgIVal = 0;
- while (isxdigit (C)) {
- CfgIVal = CfgIVal * 16 + DigitVal (C);
- NextChar ();
- }
- CfgTok = CFGTOK_INTCON;
- return;
+ NextChar ();
+ if (!IsXDigit (C)) {
+ InfoError ("Hex digit expected");
+ }
+ InfoIVal = 0;
+ while (IsXDigit (C)) {
+ InfoIVal = InfoIVal * 16 + DigitVal (C);
+ NextChar ();
+ }
+ InfoTok = INFOTOK_INTCON;
+ return;
}
/* Decimal number? */
- if (isdigit (C)) {
- CfgIVal = 0;
- while (isdigit (C)) {
- CfgIVal = CfgIVal * 10 + DigitVal (C);
- NextChar ();
- }
- CfgTok = CFGTOK_INTCON;
- return;
+ if (IsDigit (C)) {
+ InfoIVal = 0;
+ while (IsDigit (C)) {
+ InfoIVal = InfoIVal * 10 + DigitVal (C);
+ NextChar ();
+ }
+ InfoTok = INFOTOK_INTCON;
+ return;
}
/* Other characters */
switch (C) {
- case '{':
- NextChar ();
- CfgTok = CFGTOK_LCURLY;
- break;
+ case '{':
+ NextChar ();
+ InfoTok = INFOTOK_LCURLY;
+ break;
- case '}':
- NextChar ();
- CfgTok = CFGTOK_RCURLY;
- break;
+ case '}':
+ NextChar ();
+ InfoTok = INFOTOK_RCURLY;
+ break;
- case ';':
- NextChar ();
- CfgTok = CFGTOK_SEMI;
- break;
+ case ';':
+ NextChar ();
+ InfoTok = INFOTOK_SEMI;
+ break;
- case '.':
- NextChar ();
- CfgTok = CFGTOK_DOT;
- break;
+ case '.':
+ NextChar ();
+ InfoTok = INFOTOK_DOT;
+ break;
- case ',':
- NextChar ();
- CfgTok = CFGTOK_COMMA;
- break;
+ case ',':
+ NextChar ();
+ InfoTok = INFOTOK_COMMA;
+ break;
- case '=':
- NextChar ();
- CfgTok = CFGTOK_EQ;
- break;
+ case '=':
+ NextChar ();
+ InfoTok = INFOTOK_EQ;
+ break;
case ':':
- NextChar ();
- CfgTok = CFGTOK_COLON;
- break;
+ NextChar ();
+ InfoTok = INFOTOK_COLON;
+ break;
case '\"':
- NextChar ();
- I = 0;
- while (C != '\"') {
- if (C == EOF || C == '\n') {
- CfgError ("Unterminated string");
- }
- if (I < CFG_MAX_IDENT_LEN) {
- CfgSVal [I++] = C;
- }
- NextChar ();
- }
- NextChar ();
- CfgSVal [I] = '\0';
- CfgTok = CFGTOK_STRCON;
- break;
+ NextChar ();
+ I = 0;
+ while (C != '\"') {
+ Esc = (C == '\\');
+ if (Esc) {
+ NextChar ();
+ }
+ if (C == EOF || C == '\n') {
+ InfoError ("Unterminated string");
+ }
+ if (Esc) {
+ switch (C) {
+ case '\"': C = '\"'; break;
+ case '\'': C = '\''; break;
+ default: InfoError ("Invalid escape char: %c", C);
+ }
+ }
+ if (I < CFG_MAX_IDENT_LEN) {
+ InfoSVal [I++] = C;
+ }
+ NextChar ();
+ }
+ NextChar ();
+ InfoSVal [I] = '\0';
+ InfoTok = INFOTOK_STRCON;
+ break;
+
+ case '\'':
+ NextChar ();
+ if (C == EOF || IsControl (C)) {
+ InfoError ("Invalid character constant");
+ }
+ InfoIVal = C;
+ NextChar ();
+ if (C != '\'') {
+ InfoError ("Unterminated character constant");
+ }
+ NextChar ();
+ InfoTok = INFOTOK_CHARCON;
+ break;
case '#':
- /* Comment */
- while (C != '\n' && C != EOF) {
- NextChar ();
- }
- if (C != EOF) {
- goto Again;
- }
- CfgTok = CFGTOK_EOF;
- break;
+ /* Comment */
+ while (C != '\n' && C != EOF) {
+ NextChar ();
+ }
+ if (C != EOF) {
+ goto Again;
+ }
+ InfoTok = INFOTOK_EOF;
+ break;
case EOF:
- CfgTok = CFGTOK_EOF;
- break;
+ InfoTok = INFOTOK_EOF;
+ break;
- default:
- CfgError ("Invalid character `%c'", C);
+ default:
+ InfoError ("Invalid character `%c'", C);
}
}
-void CfgConsume (unsigned T, const char* Msg)
+void InfoConsume (unsigned T, const char* Msg)
/* Skip a token, print an error message if not found */
{
- if (CfgTok != T) {
- CfgError (Msg);
+ if (InfoTok != T) {
+ InfoError (Msg);
}
- CfgNextTok ();
+ InfoNextTok ();
}
-void CfgConsumeLCurly (void)
+void InfoConsumeLCurly (void)
/* Consume a left curly brace */
{
- CfgConsume (CFGTOK_LCURLY, "`{' expected");
+ InfoConsume (INFOTOK_LCURLY, "`{' expected");
}
-void CfgConsumeRCurly (void)
+void InfoConsumeRCurly (void)
/* Consume a right curly brace */
{
- CfgConsume (CFGTOK_RCURLY, "`}' expected");
+ InfoConsume (INFOTOK_RCURLY, "`}' expected");
}
-void CfgConsumeSemi (void)
+void InfoConsumeSemi (void)
/* Consume a semicolon */
{
- CfgConsume (CFGTOK_SEMI, "`;' expected");
+ InfoConsume (INFOTOK_SEMI, "`;' expected");
}
-void CfgConsumeColon (void)
+void InfoConsumeColon (void)
/* Consume a colon */
{
- CfgConsume (CFGTOK_COLON, "`:' expected");
+ InfoConsume (INFOTOK_COLON, "`:' expected");
}
-void CfgOptionalComma (void)
+void InfoOptionalComma (void)
/* Consume a comma if there is one */
{
- if (CfgTok == CFGTOK_COMMA) {
- CfgNextTok ();
+ if (InfoTok == INFOTOK_COMMA) {
+ InfoNextTok ();
}
}
-void CfgOptionalAssign (void)
+void InfoOptionalAssign (void)
/* Consume an equal sign if there is one */
{
- if (CfgTok == CFGTOK_EQ) {
- CfgNextTok ();
+ if (InfoTok == INFOTOK_EQ) {
+ InfoNextTok ();
}
}
-void CfgAssureInt (void)
+void InfoAssureInt (void)
/* Make sure the next token is an integer */
{
- if (CfgTok != CFGTOK_INTCON) {
- CfgError ("Integer constant expected");
+ if (InfoTok != INFOTOK_INTCON) {
+ InfoError ("Integer constant expected");
}
}
-void CfgAssureStr (void)
+void InfoAssureStr (void)
/* Make sure the next token is a string constant */
{
- if (CfgTok != CFGTOK_STRCON) {
- CfgError ("String constant expected");
+ if (InfoTok != INFOTOK_STRCON) {
+ InfoError ("String constant expected");
+ }
+}
+
+
+
+void InfoAssureChar (void)
+/* Make sure the next token is a char constant */
+{
+ if (InfoTok != INFOTOK_STRCON) {
+ InfoError ("Character constant expected");
}
}
-void CfgAssureIdent (void)
+void InfoAssureIdent (void)
/* Make sure the next token is an identifier */
{
- if (CfgTok != CFGTOK_IDENT) {
- CfgError ("Identifier expected");
+ if (InfoTok != INFOTOK_IDENT) {
+ InfoError ("Identifier expected");
}
}
-void CfgRangeCheck (long Lo, long Hi)
-/* Check the range of CfgIVal */
+void InfoRangeCheck (long Lo, long Hi)
+/* Check the range of InfoIVal */
{
- if (CfgIVal < Lo || CfgIVal > Hi) {
- CfgError ("Range error");
+ if (InfoIVal < Lo || InfoIVal > Hi) {
+ InfoError ("Range error");
}
}
-void CfgSpecialToken (const IdentTok* Table, unsigned Size, const char* Name)
+void InfoSpecialToken (const IdentTok* Table, unsigned Size, const char* Name)
/* Map an identifier to one of the special tokens in the table */
{
unsigned I;
/* We need an identifier */
- if (CfgTok == CFGTOK_IDENT) {
-
- /* Make it upper case */
- I = 0;
- while (CfgSVal [I]) {
- CfgSVal [I] = toupper (CfgSVal [I]);
- ++I;
- }
-
- /* Linear search */
- for (I = 0; I < Size; ++I) {
- if (strcmp (CfgSVal, Table [I].Ident) == 0) {
- CfgTok = Table [I].Tok;
- return;
- }
- }
+ if (InfoTok == INFOTOK_IDENT) {
+
+ /* Make it upper case */
+ I = 0;
+ while (InfoSVal [I]) {
+ InfoSVal [I] = toupper (InfoSVal [I]);
+ ++I;
+ }
+
+ /* Linear search */
+ for (I = 0; I < Size; ++I) {
+ if (strcmp (InfoSVal, Table [I].Ident) == 0) {
+ InfoTok = Table [I].Tok;
+ return;
+ }
+ }
}
/* Not found or no identifier */
- CfgError ("%s expected", Name);
+ InfoError ("%s expected", Name);
}
-void CfgBoolToken (void)
+void InfoBoolToken (void)
/* Map an identifier or integer to a boolean token */
{
static const IdentTok Booleans [] = {
- { "YES", CFGTOK_TRUE },
- { "NO", CFGTOK_FALSE },
- { "TRUE", CFGTOK_TRUE },
- { "FALSE", CFGTOK_FALSE },
+ { "YES", INFOTOK_TRUE },
+ { "NO", INFOTOK_FALSE },
+ { "TRUE", INFOTOK_TRUE },
+ { "FALSE", INFOTOK_FALSE },
+ { "ON", INFOTOK_TRUE },
+ { "OFF", INFOTOK_FALSE },
};
/* If we have an identifier, map it to a boolean token */
- if (CfgTok == CFGTOK_IDENT) {
- CfgSpecialToken (Booleans, ENTRY_COUNT (Booleans), "Boolean");
+ if (InfoTok == INFOTOK_IDENT) {
+ InfoSpecialToken (Booleans, ENTRY_COUNT (Booleans), "Boolean");
} else {
- /* We expected an integer here */
- if (CfgTok != CFGTOK_INTCON) {
- CfgError ("Boolean value expected");
- }
- CfgTok = (CfgIVal == 0)? CFGTOK_FALSE : CFGTOK_TRUE;
+ /* We expected an integer here */
+ if (InfoTok != INFOTOK_INTCON) {
+ InfoError ("Boolean value expected");
+ }
+ InfoTok = (InfoIVal == 0)? INFOTOK_FALSE : INFOTOK_TRUE;
}
}
-void CfgSetName (const char* Name)
+void InfoSetName (const char* Name)
/* Set a name for a config file */
{
- CfgFile = Name;
+ InfoFile = Name;
}
-const char* CfgGetName (void)
+const char* InfoGetName (void)
/* Get the name of the config file */
{
- return CfgFile? CfgFile : "";
-}
-
-
-
-void CfgSetBuf (const char* Buf)
-/* Set a memory buffer for the config */
-{
- CfgBuf = Buf;
+ return InfoFile? InfoFile : "";
}
-int CfgAvail (void)
-/* Return true if we have a configuration available */
+int InfoAvail ()
+/* Return true if we have an info file given */
{
- return CfgFile != 0 || CfgBuf != 0;
+ return (InfoFile != 0);
}
-void CfgOpenInput (void)
-/* Open the input file if we have one */
+void InfoOpenInput (void)
+/* Open the input file */
{
- /* If we have a config name given, open the file, otherwise we will read
- * from a buffer.
- */
- if (!CfgBuf) {
-
- /* Open the file */
- InputFile = fopen (CfgFile, "r");
- if (InputFile == 0) {
- Error ("Cannot open `%s': %s", CfgFile, strerror (errno));
- }
-
+ /* Open the file */
+ InputFile = fopen (InfoFile, "r");
+ if (InputFile == 0) {
+ Error ("Cannot open `%s': %s", InfoFile, strerror (errno));
}
/* Initialize variables */
InputCol = 0;
/* Start the ball rolling ... */
- CfgNextTok ();
+ InfoNextTok ();
}
-void CfgCloseInput (void)
+void InfoCloseInput (void)
/* Close the input file if we have one */
{
/* Close the input file if we had one */
if (InputFile) {
(void) fclose (InputFile);
- InputFile = 0;
+ InputFile = 0;
}
}
projects / cc65 / blobdiff