/* This is the Assembler Pre-Processor
- Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 98, 1999
+ Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
#endif
#endif
+#ifdef TC_M68K
/* Whether we are scrubbing in m68k MRI mode. This is different from
flag_m68k_mri, because the two flags will be affected by the .mri
pseudo-op at different times. */
static int scrub_m68k_mri;
+#else
+#define scrub_m68k_mri 0
+#endif
/* The pseudo-op which switches in and out of MRI mode. See the
comment in do_scrub_chars. */
#define LEX_IS_DOUBLEDASH_1ST 12
#endif
#ifdef TC_M32R
+#define DOUBLEBAR_PARALLEL
+#endif
+#ifdef DOUBLEBAR_PARALLEL
#define LEX_IS_DOUBLEBAR_1ST 13
#endif
#define IS_SYMBOL_COMPONENT(c) (lex[c] == LEX_IS_SYMBOL_COMPONENT)
void
do_scrub_begin (m68k_mri)
- int m68k_mri;
+ int m68k_mri ATTRIBUTE_UNUSED;
{
const char *p;
int c;
- scrub_m68k_mri = m68k_mri;
-
lex[' '] = LEX_IS_WHITESPACE;
lex['\t'] = LEX_IS_WHITESPACE;
lex['\r'] = LEX_IS_WHITESPACE;
lex[';'] = LEX_IS_LINE_SEPARATOR;
lex[':'] = LEX_IS_COLON;
+#ifdef TC_M68K
+ scrub_m68k_mri = m68k_mri;
+
if (! m68k_mri)
+#endif
{
lex['"'] = LEX_IS_STRINGQUOTE;
-#ifndef TC_HPPA
+#if ! defined (TC_HPPA) && ! defined (TC_I370)
+ /* I370 uses single-quotes to delimit integer, float constants */
lex['\''] = LEX_IS_ONECHAR_QUOTE;
#endif
lex['/'] = LEX_IS_TWOCHAR_COMMENT_1ST;
}
+#ifdef TC_M68K
if (m68k_mri)
{
lex['\''] = LEX_IS_STRINGQUOTE;
then it can't be used in an expression. */
lex['!'] = LEX_IS_LINE_COMMENT_START;
}
+#endif
#ifdef TC_V850
lex['-'] = LEX_IS_DOUBLEDASH_1ST;
#endif
-#ifdef TC_M32R
+#ifdef DOUBLEBAR_PARALLEL
lex['|'] = LEX_IS_DOUBLEBAR_1ST;
#endif
#ifdef TC_D30V
int add_newlines;
char * saved_input;
int saved_input_len;
+#ifdef TC_M68K
int scrub_m68k_mri;
+#endif
const char * mri_state;
char mri_last_ch;
#if defined TC_ARM && defined OBJ_ELF
memcpy (saved->saved_input, saved_input, saved_input_len);
saved->saved_input_len = saved_input_len;
}
+#ifdef TC_M68K
saved->scrub_m68k_mri = scrub_m68k_mri;
+#endif
saved->mri_state = mri_state;
saved->mri_last_ch = mri_last_ch;
#if defined TC_ARM && defined OBJ_ELF
saved_input_len = saved->saved_input_len;
free (saved->saved_input);
}
+#ifdef TC_M68K
scrub_m68k_mri = saved->scrub_m68k_mri;
+#endif
mri_state = saved->mri_state;
mri_last_ch = saved->mri_last_ch;
#if defined TC_ARM && defined OBJ_ELF
#ifdef TC_V850
12: After seeing a dash, looking for a second dash as a start of comment.
#endif
-#ifdef TC_M32R
+#ifdef DOUBLEBAR_PARALLEL
13: After seeing a vertical bar, looking for a second vertical bar as a parallel expression seperator.
#endif
*/
break;
}
+#ifdef KEEP_WHITE_AROUND_COLON
+ if (lex[ch] == LEX_IS_COLON)
+ {
+ /* only keep this white if there's no white *after* the colon */
+ ch2 = GET ();
+ UNGET (ch2);
+ if (!IS_WHITESPACE (ch2))
+ {
+ state = 9;
+ UNGET (ch);
+ PUT (' ');
+ break;
+ }
+ }
+#endif
if (IS_COMMENT (ch)
|| ch == '/'
|| IS_LINE_SEPARATOR (ch))
state = 10; /* Sp after symbol char */
goto recycle;
case 11:
- if (flag_m68k_mri
-#ifdef LABELS_WITHOUT_COLONS
- || 1
-#endif
- )
+ if (LABELS_WITHOUT_COLONS || flag_m68k_mri)
state = 1;
else
{
ch = ' ';
goto recycle;
}
+#ifdef DOUBLESLASH_LINE_COMMENTS
+ else if (ch2 == '/')
+ {
+ do
+ {
+ ch = GET ();
+ }
+ while (ch != EOF && !IS_NEWLINE (ch));
+ if (ch == EOF)
+ as_warn ("end of file in comment; newline inserted");
+ state = 0;
+ PUT ('\n');
+ break;
+ }
+#endif
else
{
if (ch2 != EOF)
#endif
case LEX_IS_COLON:
+#ifdef KEEP_WHITE_AROUND_COLON
+ state = 9;
+#else
if (state == 9 || state == 10)
state = 3;
else if (state != 3)
state = 1;
+#endif
PUT (ch);
break;
PUT ('\n');
break;
#endif
-#ifdef TC_M32R
+#ifdef DOUBLEBAR_PARALLEL
case LEX_IS_DOUBLEBAR_1ST:
ch2 = GET();
if (ch2 != '|')
}
else if (state == 10)
{
+ if (ch == '\\')
+ {
+ /* Special handling for backslash: a backslash may
+ be the beginning of a formal parameter (of a
+ macro) following another symbol character, with
+ whitespace in between. If that is the case, we
+ output a space before the parameter. Strictly
+ speaking, correct handling depends upon what the
+ macro parameter expands into; if the parameter
+ expands into something which does not start with
+ an operand character, then we don't want to keep
+ the space. We don't have enough information to
+ make the right choice, so here we are making the
+ choice which is more likely to be correct. */
+ PUT (' ');
+ }
+
state = 3;
}
PUT (ch);