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preproc: fix terminal token pasting in indirect sequences

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Fix the case where the terminal token pastes with the first token of
the unmodified sequence.  This is a really ugly version; we need to
merge the two instances plus the one in expand_mmac_params().

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2008-10-19 22:22:05 -07:00
parent e126581f4d
commit 49b33f398e
1 changed files with 29 additions and 1 deletions
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30
preproc.c
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@ -3915,6 +3915,8 @@ static Token *expand_id(Token * tline)
/*
* Expand indirect tokens, %[...]. Just like expand_smacro(),
* the input is considered destroyed.
*
* XXX: fix duplicated code in this function and in expand_mmac_params()
*/
static Token *expand_indirect(Token * tline, int level)
{
@ -3962,7 +3964,33 @@ static Token *expand_indirect(Token * tline, int level)
it = it->next;
}
}
*tp = thead = t->next;
skip = false;
it = t->next;
if (it) {
switch (thead ? thead->type : TOK_NONE) {
case TOK_WHITESPACE:
skip = (it->type == TOK_WHITESPACE);
break;
case TOK_ID:
case TOK_NUMBER:
if (it->type == thead->type || it->type == TOK_NUMBER) {
char *tmp = nasm_strcat(thead->text, it->text);
nasm_free(thead->text);
thead->text = tmp;
skip = true;
}
break;
default:
break;
}
}
if (skip) {
*tp = thead = it->next;
t = delete_Token(t);
} else {
*tp = thead = it;
}
t = delete_Token(t);
}
}