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/* decode remaining preprocessor lines, minimal version. */
/* Copyright (C) GPL V2, derived from preproc.c by RDB. */
#include "bcc.h"
#include "input.h"
#include "os.h"
#include "output.h"
#include "parse.h"
#include "sc.h"
#include "scan.h"
#include "table.h"
#include "type.h"
#ifndef BUILTIN_CPP
FORWARD void control P((void));
FORWARD void asmcontrol P((void));
FORWARD void warningcntl P((void));
FORWARD void errorcntl P((void));
/* docontrol() - process control statement, #line and #asm only. */
PUBLIC void docontrol()
{
control();
skipline();
return;
}
/* control() - select and switch to control statement */
PRIVATE void control()
{
char sname[NAMESIZE + 1];
sym_t ctlcase;
struct symstruct *symptr;
if (ctext && asmmode)
{
comment();
outudec(input.linenumber);
outbyte(' ');
outline(lineptr);
}
sname[0] = '#'; /* prepare for bad control */
sname[1] = 0;
if (blanksident())
strcat(sname, gsname);
if (sname[1] == 0 && ch == EOL)
return;
if (SYMOFCHAR(ch) == INTCONST)
{ linecontol(); return; }
if ((symptr = findlorg(sname)) == NULL)
{
error(" bad control");
return;
}
ctlcase = symptr->offset.offsym;
switch (ctlcase)
{
case ASMCNTL:
if (asmmode)
error(" bad control");
else
asmcontrol();
break;
case ENDASMCNTL:
if (!asmmode)
error(" bad control");
asmmode = FALSE;
break;
case LINECNTL:
{ linecontol(); break; }
case WARNINGCNTL:
warningcntl();
break;
case ERRORCNTL:
errorcntl();
break;
default:
error(" bad control");
break;
}
}
/* asmcontrol() - process #asm */
PRIVATE void asmcontrol()
{
#ifdef ASM_BARE
char treasure; /* to save at least one leading blank */
#endif
asmmode = TRUE;
if (expect_statement)
return;
outnstr("!BCC_ASM");
dumplocs();
#ifndef ASM_BARE
cppscan(1);
#else
while (TRUE)
{
skipline();
skipeol();
if (eofile)
{
eofin("#asm");
break;
}
if (SYMOFCHAR(ch) == SPECIALCHAR)
specialchar();
treasure = 0;
if (SYMOFCHAR(ch) == WHITESPACE)
treasure = ch;
blanks();
if (ch == '#')
{
if (ctext)
{
register char *lptr;
comment();
if (treasure != 0)
outbyte(treasure);
lptr = lineptr;
while (*lptr++ != EOL) /* XXX - handle COEOL too */
outbyte(ch);
outnl();
}
gch1();
docontrol();
if (!asmmode)
break;
}
else
{
if (treasure != 0)
outbyte(treasure);
while (ch != EOL) /* XXX - handle COEOL too */
{
outbyte(ch);
gch1();
}
outnl();
}
}
#endif
outnstr("!BCC_ENDASM");
}
/* warningcntl() - process #warning */
PRIVATE void warningcntl()
{
char estr[256], *ep = estr;
*ep++ = '%'; *ep++ = 'w';
while( ch != EOL ) {
if (ep < estr+sizeof(estr)-2 )
*ep++ = ch;
gch1();
}
*ep = 0;
error(estr);
}
/* errorcntl() - process #error */
PRIVATE void errorcntl()
{
char estr[256], *ep = estr;
while( ch != EOL ) {
if (ep < estr+sizeof(estr)-2 )
*ep++ = ch;
gch1();
}
*ep = 0;
error(estr);
}
/* skipline() - skip rest of line */
PUBLIC void skipline()
{
while (TRUE)
{
blanks();
if (ch == EOL)
return;
if (ch == '\\')
{
gch1();
if (ch == EOL) /* XXX - I think blanks() eats \EOL */
return;
gch1(); /* XXX - escape() better? */
}
else if (ch == '"' || ch == '\'')
{
stringorcharconst();
charptr = constant.value.s;
}
else
gch1();
}
}
#endif
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