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Support constants and IN operator in preprocessor patch by Christian Iversen

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This commit is contained in:
peter 2005-02-27 17:15:01 +00:00
parent 6e0cf1751a
commit fe9bf2081d
1 changed files with 80 additions and 5 deletions
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85
compiler/scanner.pas
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@ -191,7 +191,7 @@ implementation
cutils,
systems,
switches,
symbase,symtable,symtype,symsym,symconst,
symbase,symtable,symtype,symsym,symconst,symdef,defutil,
fmodule;
var
@ -628,8 +628,43 @@ implementation
else
begin
hs:=preproc_substitutedtoken;
preproc_consume(_ID);
{ Default is to return the original symbol }
read_factor:=hs;
if searchsym(current_scanner.preproc_pattern,srsym,srsymtable) then
begin
case srsym.typ of
constsym :
begin
with tconstsym(srsym) do
begin
case consttyp of
constord :
begin
case consttype.def.deftype of
orddef:
begin
if is_integer(consttype.def) or is_boolean(consttype.def) then
read_factor:=tostr(value.valueord)
else
if is_char(consttype.def) then
read_factor:=chr(value.valueord);
end;
enumdef:
read_factor:=tostr(value.valueord)
end;
end;
conststring :
read_factor := upper(pchar(value.valueordptr))
end;
end;
end;
enumsym :
read_factor:=tostr(tenumsym(srsym).value);
end;
end;
preproc_consume(_ID);
current_scanner.skipspace;
end
end
else if current_scanner.preproc_token =_LKLAMMER then
@ -638,6 +673,18 @@ implementation
read_factor:=read_expr;
preproc_consume(_RKLAMMER);
end
else if current_scanner.preproc_token = _LECKKLAMMER then
begin
preproc_consume(_LECKKLAMMER);
read_factor := ',';
while current_scanner.preproc_token = _ID do
begin
read_factor := read_factor+read_factor()+',';
if current_scanner.preproc_token = _COMMA then
preproc_consume(_COMMA);
end;
preproc_consume(_RECKKLAMMER);
end
else
Message(scan_e_error_in_preproc_expr);
end;
@ -701,18 +748,24 @@ implementation
begin
hs1:=read_simple_expr;
t:=current_scanner.preproc_token;
if not(t in [_EQUAL,_UNEQUAL,_LT,_GT,_LTE,_GTE]) then
if (t = _ID) and (current_scanner.preproc_pattern = 'IN') then
t := _IN;
if not (t in [_IN,_EQUAL,_UNEQUAL,_LT,_GT,_LTE,_GTE]) then
begin
read_expr:=hs1;
exit;
end;
preproc_consume(t);
if (t = _IN) then
preproc_consume(_ID)
else
preproc_consume(t);
hs2:=read_simple_expr;
if is_number(hs1) and is_number(hs2) then
begin
val(hs1,l1,w);
val(hs2,l2,w);
case t of
_IN : Message(scan_e_preproc_syntax_error);
_EQUAL : b:=l1=l2;
_UNEQUAL : b:=l1<>l2;
_LT : b:=l1<l2;
@ -724,6 +777,10 @@ implementation
else
begin
case t of
_IN : if hs2[1] = ',' then
b:=pos(','+hs1+',', hs2) > 0
else
Message(scan_e_preproc_syntax_error);
_EQUAL : b:=hs1=hs2;
_UNEQUAL : b:=hs1<>hs2;
_LT : b:=hs1<hs2;
@ -3029,6 +3086,11 @@ exit_label:
current_scanner.preproc_pattern:=readval_asstring;
readpreproc:=_ID;
end;
',' :
begin
readchar;
readpreproc:=_COMMA;
end;
'}' :
begin
readpreproc:=_END;
@ -3043,6 +3105,16 @@ exit_label:
readchar;
readpreproc:=_RKLAMMER;
end;
'[' :
begin
readchar;
readpreproc:=_LECKKLAMMER;
end;
']' :
begin
readchar;
readpreproc:=_RECKKLAMMER;
end;
'+' :
begin
readchar;
@ -3259,7 +3331,10 @@ exit_label:
end.
{
$Log$
Revision 1.100 2005-02-14 17:13:07 peter
Revision 1.101 2005-02-27 17:15:01 peter
Support constants and IN operator in preprocessor patch by Christian Iversen
Revision 1.100 2005/02/14 17:13:07 peter
* truncate log
Revision 1.99 2005/01/20 17:05:53 peter