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Add %ifmacro and friends, and fix two minor bugs:

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a) The argument to %elif* is handled different than the one to %if*
b) Incorrect error messages for the %ifdef variants
This commit is contained in:
H. Peter Anvin 2002-05-07 00:10:05 +00:00
parent 290b514fac
commit 6574726f21
1 changed files with 116 additions and 27 deletions
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143
preproc.c
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@ -1,3 +1,4 @@
/* -*- mode: c; c-file-style: "bsd" -*- */
/* preproc.c macro preprocessor for the Netwide Assembler
*
* The Netwide Assembler is copyright (C) 1996 Simon Tatham and
@ -276,12 +277,12 @@ static int inverse_ccs[] = {
static char *directives[] = {
"%arg",
"%assign", "%clear", "%define", "%elif", "%elifctx", "%elifdef",
"%elifid", "%elifidn", "%elifidni", "%elifnctx", "%elifndef",
"%elifnid", "%elifnidn", "%elifnidni", "%elifnnum", "%elifnstr",
"%elifid", "%elifidn", "%elifidni", "%elifmacro", "%elifnctx", "%elifndef",
"%elifnid", "%elifnidn", "%elifnidni", "%elifnmacro", "%elifnnum", "%elifnstr",
"%elifnum", "%elifstr", "%else", "%endif", "%endm", "%endmacro",
"%endrep", "%error", "%exitrep", "%iassign", "%idefine", "%if",
"%ifctx", "%ifdef", "%ifid", "%ifidn", "%ifidni", "%ifnctx",
"%ifndef", "%ifnid", "%ifnidn", "%ifnidni", "%ifnnum",
"%ifctx", "%ifdef", "%ifid", "%ifidn", "%ifidni", "%ifmacro", "%ifnctx",
"%ifndef", "%ifnid", "%ifnidn", "%ifnidni", "%ifnmacro", "%ifnnum",
"%ifnstr", "%ifnum", "%ifstr", "%imacro", "%include",
"%ixdefine", "%line",
"%local",
@ -293,12 +294,12 @@ enum
{
PP_ARG,
PP_ASSIGN, PP_CLEAR, PP_DEFINE, PP_ELIF, PP_ELIFCTX, PP_ELIFDEF,
PP_ELIFID, PP_ELIFIDN, PP_ELIFIDNI, PP_ELIFNCTX, PP_ELIFNDEF,
PP_ELIFNID, PP_ELIFNIDN, PP_ELIFNIDNI, PP_ELIFNNUM, PP_ELIFNSTR,
PP_ELIFID, PP_ELIFIDN, PP_ELIFIDNI, PP_ELIFMACRO, PP_ELIFNCTX, PP_ELIFNDEF,
PP_ELIFNID, PP_ELIFNIDN, PP_ELIFNIDNI, PP_ELIFNMACRO, PP_ELIFNNUM, PP_ELIFNSTR,
PP_ELIFNUM, PP_ELIFSTR, PP_ELSE, PP_ENDIF, PP_ENDM, PP_ENDMACRO,
PP_ENDREP, PP_ERROR, PP_EXITREP, PP_IASSIGN, PP_IDEFINE, PP_IF,
PP_IFCTX, PP_IFDEF, PP_IFID, PP_IFIDN, PP_IFIDNI, PP_IFNCTX,
PP_IFNDEF, PP_IFNID, PP_IFNIDN, PP_IFNIDNI, PP_IFNNUM,
PP_IFCTX, PP_IFDEF, PP_IFID, PP_IFIDN, PP_IFIDNI, PP_IFMACRO, PP_IFNCTX,
PP_IFNDEF, PP_IFNID, PP_IFNIDN, PP_IFNIDNI, PP_IFNMACRO, PP_IFNNUM,
PP_IFNSTR, PP_IFNUM, PP_IFSTR, PP_IMACRO, PP_INCLUDE,
PP_IXDEFINE, PP_LINE,
PP_LOCAL,
@ -307,6 +308,12 @@ enum
PP_STRLEN, PP_SUBSTR, PP_UNDEF, PP_XDEFINE
};
/* If this is a an IF, ELIF, ELSE or ENDIF keyword */
static int is_condition(int arg)
{
return ((arg >= PP_ELIF) && (arg <= PP_ENDIF)) ||
((arg >= PP_IF) && (arg <= PP_IFSTR));
}
/* For TASM compatibility we need to be able to recognise TASM compatible
* conditional compilation directives. Using the NASM pre-processor does
@ -1471,8 +1478,8 @@ if_condition(Token * tline, int i)
tline->text[1] != '$')))
{
error(ERR_NONFATAL,
"`%%if%sdef' expects macro identifiers",
(i == PP_ELIFNDEF ? "n" : ""));
"`%s' expects macro identifiers",
directives[i]);
free_tlist(origline);
return -1;
}
@ -1549,6 +1556,98 @@ if_condition(Token * tline, int i)
free_tlist(tline);
return j;
case PP_IFMACRO:
case PP_ELIFMACRO:
case PP_IFNMACRO:
case PP_ELIFNMACRO:
{
int found = 0;
MMacro searching, *mmac;
tline = tline->next;
skip_white_(tline);
tline = expand_id(tline);
if (!tok_type_(tline, TOK_ID))
{
error(ERR_NONFATAL,
"`%s' expects a macro name",
directives[i]);
return -1;
}
searching.name = nasm_strdup(tline->text);
searching.casesense = (i == PP_MACRO);
searching.plus = FALSE;
searching.nolist = FALSE;
searching.in_progress = FALSE;
searching.rep_nest = NULL;
searching.nparam_min = 0;
searching.nparam_max = INT_MAX;
tline = expand_smacro(tline->next);
skip_white_(tline);
if (!tline)
{
} else if (!tok_type_(tline, TOK_NUMBER))
{
error(ERR_NONFATAL,
"`%s' expects a parameter count or nothing",
directives[i]);
}
else
{
searching.nparam_min = searching.nparam_max =
readnum(tline->text, &j);
if (j)
error(ERR_NONFATAL,
"unable to parse parameter count `%s'",
tline->text);
}
if (tline && tok_is_(tline->next, "-"))
{
tline = tline->next->next;
if (tok_is_(tline, "*"))
searching.nparam_max = INT_MAX;
else if (!tok_type_(tline, TOK_NUMBER))
error(ERR_NONFATAL,
"`%s' expects a parameter count after `-'",
directives[i]);
else
{
searching.nparam_max = readnum(tline->text, &j);
if (j)
error(ERR_NONFATAL,
"unable to parse parameter count `%s'",
tline->text);
if (searching.nparam_min > searching.nparam_max)
error(ERR_NONFATAL,
"minimum parameter count exceeds maximum");
}
}
if (tline && tok_is_(tline->next, "+"))
{
tline = tline->next;
searching.plus = TRUE;
}
mmac = mmacros[hash(searching.name)];
while (mmac)
{
if (!strcmp(mmac->name, searching.name) &&
(mmac->nparam_min <= searching.nparam_max
|| searching.plus)
&& (searching.nparam_min <= mmac->nparam_max
|| mmac->plus))
{
found = TRUE;
break;
}
mmac = mmac->next;
}
nasm_free(searching.name);
free_tlist(origline);
if (i == PP_IFNMACRO || i == PP_ELIFNMACRO)
found = !found;
return found;
}
case PP_IFID:
case PP_ELIFID:
case PP_IFNID:
@ -1704,22 +1803,8 @@ do_directive(Token * tline)
* directives.
*/
if (((istk->conds && !emitting(istk->conds->state)) ||
(istk->mstk && !istk->mstk->in_progress)) &&
i != PP_IF && i != PP_ELIF &&
i != PP_IFCTX && i != PP_ELIFCTX &&
i != PP_IFDEF && i != PP_ELIFDEF &&
i != PP_IFID && i != PP_ELIFID &&
i != PP_IFIDN && i != PP_ELIFIDN &&
i != PP_IFIDNI && i != PP_ELIFIDNI &&
i != PP_IFNCTX && i != PP_ELIFNCTX &&
i != PP_IFNDEF && i != PP_ELIFNDEF &&
i != PP_IFNID && i != PP_ELIFNID &&
i != PP_IFNIDN && i != PP_ELIFNIDN &&
i != PP_IFNIDNI && i != PP_ELIFNIDNI &&
i != PP_IFNNUM && i != PP_ELIFNNUM &&
i != PP_IFNSTR && i != PP_ELIFNSTR &&
i != PP_IFNUM && i != PP_ELIFNUM &&
i != PP_IFSTR && i != PP_ELIFSTR && i != PP_ELSE && i != PP_ENDIF)
(istk->mstk && !istk->mstk->in_progress)) &&
!is_condition(i))
{
return 0;
}
@ -2135,11 +2220,13 @@ do_directive(Token * tline)
case PP_IFID:
case PP_IFIDN:
case PP_IFIDNI:
case PP_IFMACRO:
case PP_IFNCTX:
case PP_IFNDEF:
case PP_IFNID:
case PP_IFNIDN:
case PP_IFNIDNI:
case PP_IFNMACRO:
case PP_IFNNUM:
case PP_IFNSTR:
case PP_IFNUM:
@ -2165,11 +2252,13 @@ do_directive(Token * tline)
case PP_ELIFID:
case PP_ELIFIDN:
case PP_ELIFIDNI:
case PP_ELIFMACRO:
case PP_ELIFNCTX:
case PP_ELIFNDEF:
case PP_ELIFNID:
case PP_ELIFNIDN:
case PP_ELIFNIDNI:
case PP_ELIFNMACRO:
case PP_ELIFNNUM:
case PP_ELIFNSTR:
case PP_ELIFNUM:
@ -2181,7 +2270,7 @@ do_directive(Token * tline)
istk->conds->state = COND_NEVER;
else
{
j = if_condition(expand_mmac_params(tline->next), i);
j = if_condition(tline->next, i);
tline->next = NULL; /* it got freed */
free_tlist(origline);
istk->conds->state =