static int GetcDribble(
void *theEnv,
char *logicalName)
{
int rv;
/*===========================================*/
/* Deactivate the dribble router and get the */
/* character from another active router. */
/*===========================================*/
EnvDeactivateRouter(theEnv,"dribble");
rv = EnvGetcRouter(theEnv,logicalName);
EnvActivateRouter(theEnv,"dribble");
/*==========================================*/
/* Put the character retrieved from another */
/* router into the dribble buffer. */
/*==========================================*/
PutcDribbleBuffer(theEnv,rv);
/*=======================*/
/* Return the character. */
/*=======================*/
return(rv);
}
static int DefaultGetNextEvent(
void *theEnv)
{
int inchar;
inchar = EnvGetcRouter(theEnv,STDIN);
if (inchar == EOF) inchar = '\n';
ExpandCommandString(theEnv,(char) inchar);
return 0;
}
globle int LLGetcBatch(
void *theEnv,
char *logicalName,
int returnOnEOF)
{
int rv = EOF, flag = 1;
/*=================================================*/
/* Get a character until a valid character appears */
/* or no more batch files are left. */
/*=================================================*/
while ((rv == EOF) && (flag == 1))
{
if (FileCommandData(theEnv)->BatchType == FILE_BATCH)
{ rv = getc((FILE *) FileCommandData(theEnv)->BatchSource); }
else
{ rv = EnvGetcRouter(theEnv,(char *) FileCommandData(theEnv)->BatchSource); }
if (rv == EOF)
{
if (FileCommandData(theEnv)->BatchCurrentPosition > 0) EnvPrintRouter(theEnv,"stdout",(char *) FileCommandData(theEnv)->BatchBuffer);
flag = RemoveBatch(theEnv);
}
}
/*=========================================================*/
/* If the character retrieved is an end-of-file character, */
/* then there are no batch files with character input */
/* remaining. Remove the batch router. */
/*=========================================================*/
if (rv == EOF)
{
if (FileCommandData(theEnv)->BatchCurrentPosition > 0) EnvPrintRouter(theEnv,"stdout",(char *) FileCommandData(theEnv)->BatchBuffer);
EnvDeleteRouter(theEnv,"batch");
RemoveBatch(theEnv);
if (returnOnEOF == TRUE)
{ return (EOF); }
else
{ return(EnvGetcRouter(theEnv,logicalName)); }
}
/*========================================*/
/* Add the character to the batch buffer. */
/*========================================*/
FileCommandData(theEnv)->BatchBuffer = ExpandStringWithChar(theEnv,(char) rv,FileCommandData(theEnv)->BatchBuffer,&FileCommandData(theEnv)->BatchCurrentPosition,
&FileCommandData(theEnv)->BatchMaximumPosition,FileCommandData(theEnv)->BatchMaximumPosition+BUFFER_SIZE);
/*======================================*/
/* If a carriage return is encountered, */
/* then flush the batch buffer. */
/*======================================*/
if ((char) rv == '\n')
{
EnvPrintRouter(theEnv,"stdout",(char *) FileCommandData(theEnv)->BatchBuffer);
FileCommandData(theEnv)->BatchCurrentPosition = 0;
if ((FileCommandData(theEnv)->BatchBuffer != NULL) && (FileCommandData(theEnv)->BatchMaximumPosition > BUFFER_SIZE))
{
rm(theEnv,FileCommandData(theEnv)->BatchBuffer,FileCommandData(theEnv)->BatchMaximumPosition);
FileCommandData(theEnv)->BatchMaximumPosition = 0;
FileCommandData(theEnv)->BatchBuffer = NULL;
}
}
/*=====================================================*/
/* Return the character retrieved from the batch file. */
/*=====================================================*/
return(rv);
}
globle void GetToken(
void *theEnv,
const char *logicalName,
struct token *theToken)
{
int inchar;
unsigned short type;
/*=======================================*/
/* Set Unknown default values for token. */
/*=======================================*/
theToken->type = UNKNOWN_VALUE;
theToken->value = NULL;
theToken->printForm = "unknown";
ScannerData(theEnv)->GlobalPos = 0;
ScannerData(theEnv)->GlobalMax = 0;
/*==============================================*/
/* Remove all white space before processing the */
/* GetToken() request. */
/*==============================================*/
inchar = EnvGetcRouter(theEnv,logicalName);
while ((inchar == ' ') || (inchar == '\n') || (inchar == '\f') ||
(inchar == '\r') || (inchar == ';') || (inchar == '\t'))
{
/*=======================*/
/* Remove comment lines. */
/*=======================*/
if (inchar == ';')
{
inchar = EnvGetcRouter(theEnv,logicalName);
while ((inchar != '\n') && (inchar != '\r') && (inchar != EOF) )
{ inchar = EnvGetcRouter(theEnv,logicalName); }
}
inchar = EnvGetcRouter(theEnv,logicalName);
}
/*==========================*/
/* Process Symbolic Tokens. */
/*==========================*/
if (isalpha(inchar) || IsUTF8MultiByteStart(inchar))
{
theToken->type = SYMBOL;
EnvUngetcRouter(theEnv,inchar,logicalName);
theToken->value = (void *) ScanSymbol(theEnv,logicalName,0,&type);
theToken->printForm = ValueToString(theToken->value);
}
/*===============================================*/
/* Process Number Tokens beginning with a digit. */
/*===============================================*/
else if (isdigit(inchar))
{
EnvUngetcRouter(theEnv,inchar,logicalName);
ScanNumber(theEnv,logicalName,theToken);
}
else switch (inchar)
{
/*========================*/
/* Process String Tokens. */
/*========================*/
case '"':
theToken->value = (void *) ScanString(theEnv,logicalName);
theToken->type = STRING;
theToken->printForm = StringPrintForm(theEnv,ValueToString(theToken->value));
break;
/*=======================================*/
/* Process Tokens that might be numbers. */
/*=======================================*/
case '-':
case '.':
case '+':
EnvUngetcRouter(theEnv,inchar,logicalName);
ScanNumber(theEnv,logicalName,theToken);
break;
/*===================================*/
/* Process ? and ?<variable> Tokens. */
/*===================================*/
case '?':
inchar = EnvGetcRouter(theEnv,logicalName);
if (isalpha(inchar) || IsUTF8MultiByteStart(inchar)
#if DEFGLOBAL_CONSTRUCT
|| (inchar == '*'))
#else
)
#endif
{
EnvUngetcRouter(theEnv,inchar,logicalName);
theToken->value = (void *) ScanSymbol(theEnv,logicalName,0,&type);
theToken->type = SF_VARIABLE;
#if DEFGLOBAL_CONSTRUCT
if ((ValueToString(theToken->value)[0] == '*') &&
(((int) strlen(ValueToString(theToken->value))) > 1) &&
(ValueToString(theToken->value)[strlen(ValueToString(theToken->value)) - 1] == '*'))
{
size_t count;
theToken->type = GBL_VARIABLE;
theToken->printForm = AppendStrings(theEnv,"?",ValueToString(theToken->value));
count = strlen(ScannerData(theEnv)->GlobalString);
ScannerData(theEnv)->GlobalString[count-1] = EOS;
theToken->value = EnvAddSymbol(theEnv,ScannerData(theEnv)->GlobalString+1);
ScannerData(theEnv)->GlobalString[count-1] = (char) inchar;
}
else
#endif
theToken->printForm = AppendStrings(theEnv,"?",ValueToString(theToken->value));
}
else
{
theToken->type = SF_WILDCARD;
theToken->value = (void *) EnvAddSymbol(theEnv,"?");
EnvUngetcRouter(theEnv,inchar,logicalName);
theToken->printForm = "?";
}
break;
/*=====================================*/
/* Process $? and $?<variable> Tokens. */
/*=====================================*/
case '$':
if ((inchar = EnvGetcRouter(theEnv,logicalName)) == '?')
{
inchar = EnvGetcRouter(theEnv,logicalName);
if (isalpha(inchar) || IsUTF8MultiByteStart(inchar)
#if DEFGLOBAL_CONSTRUCT
|| (inchar == '*'))
#else
)
#endif
{
EnvUngetcRouter(theEnv,inchar,logicalName);
theToken->value = (void *) ScanSymbol(theEnv,logicalName,0,&type);
theToken->type = MF_VARIABLE;
#if DEFGLOBAL_CONSTRUCT
if ((ValueToString(theToken->value)[0] == '*') &&
((int) (strlen(ValueToString(theToken->value))) > 1) &&
(ValueToString(theToken->value)[strlen(ValueToString(theToken->value)) - 1] == '*'))
{
size_t count;
theToken->type = MF_GBL_VARIABLE;
theToken->printForm = AppendStrings(theEnv,"$?",ValueToString(theToken->value));
count = strlen(ScannerData(theEnv)->GlobalString);
ScannerData(theEnv)->GlobalString[count-1] = EOS;
theToken->value = EnvAddSymbol(theEnv,ScannerData(theEnv)->GlobalString+1);
ScannerData(theEnv)->GlobalString[count-1] = (char) inchar;
}
else
#endif
theToken->printForm = AppendStrings(theEnv,"$?",ValueToString(theToken->value));
}
else
{
