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933 lines
30 KiB
933 lines
30 KiB
/************************************************************************/
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/* */
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/* RCPP - Resource Compiler Pre-Processor for NT system */
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/* */
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/* P0PREPRO.C - Main Preprocessor */
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/* */
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/* 27-Nov-90 w-BrianM Update for NT from PM SDK RCPP */
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/* */
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/************************************************************************/
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#include "rc.h"
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#include <ddeml.h>
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/************************************************************************/
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/* Internal constants */
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/************************************************************************/
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#define GOT_IF 1 /* last nesting command was an if.. */
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#define GOT_ELIF 2 /* last nesting command was an if.. */
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#define GOT_ELSE 3 /* last nesting command was an else */
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#define GOT_ENDIF 4 /* found endif */
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#define ELSE_OR_ENDIF 5 /* skip to either #else or #endif */
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#define ENDIF_ONLY 6 /* skip to #endif -- #else is an error*/
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|
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int ifstack[IFSTACK_SIZE];
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|
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/************************************************************************/
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/* Local Function Prototypes */
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/************************************************************************/
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void chk_newline(PWCHAR);
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void in_standard(void);
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int incr_ifstack(void);
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token_t next_control(void);
|
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unsigned long int pragma(void);
|
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int skipto(int);
|
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void skip_quoted(int);
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PWCHAR sysinclude(void);
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|
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/************************************************************************/
|
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/* incr_ifstack - Increment the IF nesting stack */
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/************************************************************************/
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|
|
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int
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incr_ifstack(
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void
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|
)
|
|
{
|
|
if(++Prep_ifstack >= IFSTACK_SIZE) {
|
|
strcpy (Msg_Text, GET_MSG (1052));
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|
fatal (1052);
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}
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return(Prep_ifstack);
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}
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|
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|
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/************************************************************************
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* SYSINCLUDE - process a system include : #include <foo>
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*
|
|
* ARGUMENTS - none
|
|
*
|
|
* RETURNS - none
|
|
*
|
|
* SIDE EFFECTS - none
|
|
*
|
|
* DESCRIPTION
|
|
* Get the system include file name. Since the name is not a "string",
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* the name must be built much the same as the -E option rebuilds the text
|
|
* by using the Tokstring expansion for tokens with no expansion already
|
|
*
|
|
* NOTE : IS THIS ANSI? note we're just reading chars, and not expanding
|
|
* any macros. NO, it's not. it must expand the macros.
|
|
* TODO : have it call yylex() unless and until it finds a '>' or a newline.
|
|
* (probably have to set On_pound_line to have yylex return the newline.)
|
|
*
|
|
* AUTHOR
|
|
* Ralph Ryan Sep. 1982
|
|
*
|
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* MODIFICATIONS - none
|
|
*
|
|
*
|
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************************************************************************/
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PWCHAR
|
|
sysinclude(
|
|
void
|
|
)
|
|
{
|
|
REG int c;
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|
REG WCHAR *p_fname;
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|
|
|
p_fname = Reuse_W;
|
|
c = skip_cwhite();
|
|
if( c == L'\n' ) {
|
|
UNGETCH();
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strcpy (Msg_Text, GET_MSG (2012));
|
|
error(2012); /* missing name after '<' */
|
|
return(NULL);
|
|
}
|
|
while( c != L'>' && c != L'\n' ) {
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*p_fname++ = (WCHAR)c; /* check for buffer overflow ??? */
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|
c = get_non_eof();
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|
}
|
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if( c == L'\n' ) {
|
|
UNGETCH();
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|
strcpy (Msg_Text, GET_MSG (2013));
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|
error(2013); /* missing '>' */
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|
return(NULL);
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|
}
|
|
if(p_fname != Reuse_W) {
|
|
p_fname--;
|
|
while((p_fname >= Reuse_W) && iswspace(*p_fname)) {
|
|
p_fname--;
|
|
}
|
|
p_fname++;
|
|
}
|
|
*p_fname = L'\0';
|
|
return(Reuse_W);
|
|
}
|
|
|
|
|
|
/************************************************************************
|
|
** preprocess : the scanner found a # which was the first non-white char
|
|
** on a line.
|
|
************************************************************************/
|
|
void
|
|
preprocess(
|
|
void
|
|
)
|
|
{
|
|
REG WCHAR c;
|
|
long eval;
|
|
int condition;
|
|
token_t deftok;
|
|
hln_t identifier;
|
|
unsigned long int cp;
|
|
|
|
if(Macro_depth != 0) { /* # only when not in a macro */
|
|
return;
|
|
}
|
|
switch(CHARMAP(c = skip_cwhite())) {
|
|
case LX_ID:
|
|
getid(c);
|
|
HLN_NAME(identifier) = Reuse_W;
|
|
HLN_LENGTH(identifier) = (UINT)Reuse_W_length;
|
|
HLN_HASH(identifier) = Reuse_W_hash;
|
|
break;
|
|
case LX_NL:
|
|
UNGETCH();
|
|
return;
|
|
default:
|
|
Msg_Temp = GET_MSG (2019);
|
|
SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, c);
|
|
error(2019); /* unknown preprocessor command */
|
|
skip_cnew(); /* finds a newline */
|
|
return;
|
|
}
|
|
|
|
On_pound_line = TRUE;
|
|
start:
|
|
switch(deftok = is_pkeyword(HLN_IDENTP_NAME(&identifier))) {
|
|
int old_prep;
|
|
|
|
case P0_DEFINE :
|
|
define();
|
|
break;
|
|
case P0_LINE :
|
|
old_prep = Prep;
|
|
Prep = FALSE;
|
|
yylex();
|
|
if(Basic_token != L_CINTEGER) { /* #line needs line number */
|
|
Msg_Temp = GET_MSG (2005);
|
|
SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, TS_STR(Basic_token));
|
|
error(2005); /* unknown preprocessor command */
|
|
Prep = old_prep;
|
|
skip_cnew();
|
|
On_pound_line = FALSE;
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|
return;
|
|
}
|
|
/*
|
|
** -1 because there's a newline at the end of this line
|
|
** which will be counted later when we find it.
|
|
** the #line says the next line is the number we've given
|
|
*/
|
|
Linenumber = TR_LVALUE(yylval.yy_tree) - 1;
|
|
yylex();
|
|
Prep = old_prep;
|
|
switch(Basic_token) {
|
|
case L_STRING:
|
|
if( wcscmp(Filename, yylval.yy_string.str_ptr) != 0) {
|
|
wcsncpy(Filename,
|
|
yylval.yy_string.str_ptr,
|
|
sizeof(Filebuff) / sizeof(WCHAR)
|
|
);
|
|
}
|
|
case L_NOTOKEN:
|
|
break;
|
|
default:
|
|
Msg_Temp = GET_MSG (2130);
|
|
SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, TS_STR(Basic_token));
|
|
error(2130); /* #line needs a string */
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|
skip_cnew();
|
|
On_pound_line = FALSE;
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|
return;
|
|
break;
|
|
}
|
|
emit_line();
|
|
chk_newline(L"#line");
|
|
break;
|
|
case P0_INCLUDE :
|
|
old_prep = Prep;
|
|
Prep = FALSE;
|
|
InInclude = TRUE;
|
|
yylex();
|
|
InInclude = FALSE;
|
|
Prep = old_prep;
|
|
switch(Basic_token) {
|
|
case L_LT:
|
|
if((sysinclude()) == NULL) {
|
|
skip_cnew();
|
|
On_pound_line = FALSE;
|
|
return;
|
|
break; /* error already emitted */
|
|
}
|
|
yylval.yy_string.str_ptr = Reuse_W;
|
|
break;
|
|
case L_STRING:
|
|
break;
|
|
default:
|
|
Msg_Temp = GET_MSG (2006);
|
|
SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, TS_STR(Basic_token));
|
|
error(2006); /* needs file name */
|
|
skip_cnew();
|
|
On_pound_line = FALSE;
|
|
return;
|
|
break;
|
|
}
|
|
wcscpy(Reuse_Include, yylval.yy_string.str_ptr);
|
|
chk_newline(L"#include");
|
|
if( wcschr(Path_chars, *yylval.yy_string.str_ptr) ||
|
|
(wcschr(Path_chars, L':') && (yylval.yy_string.str_ptr[1] == L':'))) {
|
|
/*
|
|
** we have a string which either has a 1st char which is a path
|
|
** delimiter or, if ':' is a path delimiter (DOS), which has
|
|
** "<drive letter>:" as the first two characters. Such names
|
|
** specify a fully qualified pathnames. Do not append the search
|
|
** list, just look it up.
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|
*/
|
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if( ! newinput(yylval.yy_string.str_ptr, MAY_OPEN)) {
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Msg_Temp = GET_MSG (1015);
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SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, Reuse_W);
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|
fatal (1015); /* can't find include file */
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}
|
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}
|
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else if( (Basic_token != L_STRING) || (! nested_include())) {
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in_standard();
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}
|
|
break;
|
|
case P0_IFDEF :
|
|
case P0_IFNDEF :
|
|
if(CHARMAP(c = skip_cwhite()) != LX_ID) {
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strcpy (Msg_Text, GET_MSG (1016));
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|
fatal (1016);
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}
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getid(c);
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eval = (get_defined()) ? TRUE : FALSE;
|
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chk_newline((deftok == P0_IFDEF) ? L"#ifdef" : L"#ifndef");
|
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if(deftok == P0_IFNDEF) {
|
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eval = ( ! eval );
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|
}
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|
if( eval || ((condition = skipto(ELSE_OR_ENDIF)) == GOT_ELSE) ) {
|
|
/*
|
|
** expression is TRUE or when we skipped the false part
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|
** we found a #else that will be expanded.
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|
*/
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ifstack[incr_ifstack()] = GOT_IF;
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} else if(condition == GOT_ELIF) {
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/* hash is wrong, but it won't be used */
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HLN_NAME(identifier) = L"if"; /* sleazy HACK */
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goto start;
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}
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|
break;
|
|
case P0_IF :
|
|
old_prep = Prep;
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|
Prep = FALSE;
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|
InIf = TRUE;
|
|
eval = do_constexpr();
|
|
InIf = FALSE;
|
|
Prep = old_prep;
|
|
chk_newline(PPifel_str /* "#if/#elif" */);
|
|
if((eval) || ((condition = skipto(ELSE_OR_ENDIF)) == GOT_ELSE) ) {
|
|
/*
|
|
** expression is TRUE or when we skipped the false part
|
|
** we found a #else that will be expanded.
|
|
*/
|
|
ifstack[incr_ifstack()] = GOT_IF;
|
|
if(Eflag && !eval)
|
|
emit_line();
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|
} else {
|
|
/*
|
|
** here the #if's expression was false, so we skipped until we found
|
|
** an #elif. we'll restart and fake that we're processing a #if
|
|
*/
|
|
if(Eflag)
|
|
emit_line();
|
|
if(condition == GOT_ELIF) {
|
|
/* hash is wrong, but it won't be needed */
|
|
HLN_NAME(identifier) = L"if"; /* sleazy HACK */
|
|
goto start;
|
|
}
|
|
}
|
|
break;
|
|
case P0_ELIF :
|
|
/*
|
|
** here, we have found a #elif. first check to make sure that
|
|
** this is not an occurrance of a #elif with no preceding #if.
|
|
** (if Prep_ifstack < 0) then there is no preceding #if.
|
|
*/
|
|
if(Prep_ifstack-- < 0) {
|
|
strcpy (Msg_Text, GET_MSG (1018));
|
|
fatal (1018);
|
|
}
|
|
/*
|
|
** now, the preceding #if/#elif was true, and we've
|
|
** just found the next #elif. we want to skip all #else's
|
|
** and #elif's from here until we find the enclosing #endif
|
|
*/
|
|
while(skipto(ELSE_OR_ENDIF) != GOT_ENDIF) {
|
|
;
|
|
}
|
|
if(Eflag)
|
|
emit_line();
|
|
break;
|
|
case P0_ELSE : /* the preceding #if/#elif was true */
|
|
if((Prep_ifstack < 0) || (ifstack[Prep_ifstack--] != GOT_IF)) {
|
|
strcpy (Msg_Text, GET_MSG (1019));
|
|
fatal (1019); /* make sure there was one */
|
|
}
|
|
chk_newline(PPelse_str /* "#else" */);
|
|
skipto(ENDIF_ONLY);
|
|
if(Eflag)
|
|
emit_line();
|
|
break;
|
|
case P0_ENDIF : /* only way here is a lonely #endif */
|
|
if(Prep_ifstack-- < 0) {
|
|
strcpy (Msg_Text, GET_MSG (1020));
|
|
fatal (1020);
|
|
}
|
|
if(Eflag)
|
|
emit_line();
|
|
chk_newline(PPendif_str /* "#endif" */);
|
|
break;
|
|
case P0_PRAGMA :
|
|
cp = pragma();
|
|
if (cp != 0) {
|
|
if (cp == CP_WINUNICODE) {
|
|
strcpy (Msg_Text, GET_MSG (4213));
|
|
if (fWarnInvalidCodePage) {
|
|
warning(4213);
|
|
} else {
|
|
fatal(4213);
|
|
}
|
|
break;
|
|
}
|
|
if (!IsValidCodePage(cp)) {
|
|
strcpy (Msg_Text, GET_MSG (4214));
|
|
if (fWarnInvalidCodePage) {
|
|
warning(4214);
|
|
} else {
|
|
fatal(4214);
|
|
}
|
|
break;
|
|
}
|
|
if (cp != uiCodePage) {
|
|
if (!io_restart(cp)) {
|
|
strcpy (Msg_Text, GET_MSG (1121));
|
|
fatal(1121);
|
|
}
|
|
uiCodePage = cp; // can't be set until now!
|
|
}
|
|
}
|
|
break;
|
|
case P0_UNDEF :
|
|
if(CHARMAP(c = skip_cwhite()) != LX_ID) {
|
|
strcpy (Msg_Text, GET_MSG (4006));
|
|
warning(4006); /* missing identifier on #undef */
|
|
} else {
|
|
getid(c);
|
|
undefine();
|
|
}
|
|
chk_newline(L"#undef");
|
|
break;
|
|
case P0_ERROR:
|
|
{
|
|
PWCHAR p;
|
|
|
|
p = Reuse_W;
|
|
while((c = get_non_eof()) != LX_EOS) {
|
|
if(c == L'\n') {
|
|
UNGETCH();
|
|
break;
|
|
}
|
|
*p++ = c;
|
|
}
|
|
*p = L'\0';
|
|
}
|
|
Msg_Temp = GET_MSG (2189);
|
|
SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, Reuse_W);
|
|
error(2188);
|
|
chk_newline(L"#error");
|
|
break;
|
|
case P0_IDENT:
|
|
old_prep = Prep ;
|
|
Prep = FALSE;
|
|
yylex();
|
|
Prep = old_prep;
|
|
if(Basic_token != L_STRING) {
|
|
Msg_Temp = GET_MSG (4079);
|
|
SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, TS_STR(Basic_token));
|
|
warning(4079);
|
|
}
|
|
chk_newline(L"#error");
|
|
break;
|
|
case P0_NOTOKEN:
|
|
Msg_Temp = GET_MSG (1021);
|
|
SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, HLN_IDENTP_NAME(&identifier));
|
|
fatal (1021);
|
|
break;
|
|
}
|
|
On_pound_line = FALSE;
|
|
}
|
|
|
|
|
|
/************************************************************************
|
|
* SKIPTO - skip code until the end of an undefined block is reached.
|
|
*
|
|
* ARGUMENTS
|
|
* short key - skip to an ELSE or ENDIF or just an ENDIF
|
|
*
|
|
* RETURNS - none
|
|
*
|
|
* SIDE EFFECTS
|
|
* - throws away input
|
|
*
|
|
* DESCRIPTION
|
|
* The preprocessor is skipping code between failed ifdef, etc. and
|
|
* the corresponding ELSE or ENDIF (when key == ELSE_OR_ENDIF).
|
|
* Or it is skipping code between a failed ELSE and the ENDIF (when
|
|
* key == ENDIF_ONLY).
|
|
*
|
|
* AUTHOR - Ralph Ryan, Sept. 16, 1982
|
|
*
|
|
* MODIFICATIONS - none
|
|
*
|
|
************************************************************************/
|
|
int
|
|
skipto(
|
|
int key
|
|
)
|
|
{
|
|
REG int level;
|
|
REG token_t tok;
|
|
|
|
level = 0;
|
|
tok = P0_NOTOKEN;
|
|
for(;;) {
|
|
/* make sure that IF [ELSE] ENDIF s are balanced */
|
|
switch(next_control()) {
|
|
case P0_IFDEF:
|
|
case P0_IFNDEF:
|
|
case P0_IF:
|
|
level++;
|
|
break;
|
|
case P0_ELSE:
|
|
tok = P0_ELSE;
|
|
/*
|
|
** FALLTHROUGH
|
|
*/
|
|
case P0_ELIF:
|
|
/*
|
|
** we found a #else or a #elif. these have their only chance
|
|
** at being valid if they're at level 0.
|
|
** if we're at any other level,
|
|
** then this else/elif belongs to some other #if and we skip them.
|
|
** if we were looking for an endif, the we have an error.
|
|
*/
|
|
if(level != 0) {
|
|
tok = P0_NOTOKEN;
|
|
break;
|
|
}
|
|
if(key == ENDIF_ONLY) {
|
|
strcpy (Msg_Text, GET_MSG (1022));
|
|
fatal (1022); /* expected #endif */
|
|
} else if(tok == P0_ELSE) {
|
|
chk_newline(PPelse_str /* "#else" */);
|
|
return(GOT_ELSE);
|
|
} else {
|
|
return(GOT_ELIF);
|
|
}
|
|
break;
|
|
case P0_ENDIF:
|
|
if(level == 0) {
|
|
chk_newline(PPendif_str /* "#endif" */);
|
|
return(GOT_ENDIF);
|
|
} else {
|
|
level--;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
** in_standard : search for the given file name in the directory list.
|
|
** Input : ptr to include file name.
|
|
** Output : fatal error if not found.
|
|
*************************************************************************/
|
|
void
|
|
in_standard(
|
|
void
|
|
)
|
|
{
|
|
int i;
|
|
int stop;
|
|
WCHAR *p_dir;
|
|
WCHAR *p_file;
|
|
WCHAR *p_tmp;
|
|
|
|
stop = Includes.li_top;
|
|
|
|
for(i = MAXLIST-1; i >= stop; i--) {
|
|
p_file = yylval.yy_string.str_ptr;
|
|
if( ((p_dir = Includes.li_defns[i])!=0) &&(wcscmp(p_dir, L"./") != 0) ) {
|
|
/*
|
|
** there is a directory to prepend and it's not './'
|
|
*/
|
|
p_tmp = Exp_ptr;
|
|
while((*p_tmp++ = *p_dir++) != 0)
|
|
;
|
|
/*
|
|
** above loop increments p_tmp past null.
|
|
** this replaces that null with a '/' if needed. Not needed if the
|
|
** last character of the directory spec is a path delimiter.
|
|
** we then point to the char after the '/'
|
|
*/
|
|
if(wcschr(Path_chars, p_dir[-2]) == 0) {
|
|
p_tmp[-1] = L'/';
|
|
} else {
|
|
--p_tmp;
|
|
}
|
|
while((*p_tmp++ = *p_file++) != 0)
|
|
;
|
|
p_file = Exp_ptr;
|
|
}
|
|
if(newinput(p_file,MAY_OPEN)) { /* this is the non-error way out */
|
|
return;
|
|
}
|
|
}
|
|
Msg_Temp = GET_MSG (1015);
|
|
SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, yylval.yy_string.str_ptr);
|
|
fatal (1015); /* can't find include file */
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
** chk_newline : check for whitespace only before a newline.
|
|
** eat the newline.
|
|
*************************************************************************/
|
|
void
|
|
chk_newline(
|
|
PWCHAR cmd
|
|
)
|
|
{
|
|
if(skip_cwhite() != L'\n') {
|
|
Msg_Temp = GET_MSG (4067);
|
|
SET_MSG (Msg_Text, sizeof(Msg_Text), Msg_Temp, cmd);
|
|
warning(4067); /* cmd expected newline */
|
|
skip_cnew();
|
|
} else {
|
|
UNGETCH();
|
|
}
|
|
}
|
|
|
|
/*************************************************************************
|
|
** skip_quoted : skips chars until it finds a char which matches its arg.
|
|
*************************************************************************/
|
|
void
|
|
skip_quoted(
|
|
int sc
|
|
)
|
|
{
|
|
REG WCHAR c;
|
|
|
|
for(;;) {
|
|
switch(CHARMAP(c = GETCH())) {
|
|
case LX_NL:
|
|
strcpy (Msg_Text, GET_MSG (4093));
|
|
warning(4093);
|
|
UNGETCH();
|
|
return;
|
|
break;
|
|
case LX_DQUOTE:
|
|
case LX_SQUOTE:
|
|
if(c == (WCHAR)sc)
|
|
return;
|
|
break;
|
|
case LX_EOS:
|
|
if(handle_eos() == BACKSLASH_EOS) {
|
|
SKIPCH(); /* might be /" !! */
|
|
}
|
|
break;
|
|
case LX_LEADBYTE:
|
|
get_non_eof();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
** next_control : find a newline. find a pound sign as the first non-white.
|
|
** find an id start char, build an id look it up and return the token.
|
|
** this knows about strings/char const and such.
|
|
*************************************************************************/
|
|
token_t
|
|
next_control(
|
|
void
|
|
)
|
|
{
|
|
REG WCHAR c;
|
|
|
|
for(;;) {
|
|
c = skip_cwhite();
|
|
first_switch:
|
|
switch(CHARMAP(c)) {
|
|
case LX_NL:
|
|
Linenumber++;
|
|
// must manually write '\r' with '\n' when writing 16-bit strings
|
|
if(Prep) {
|
|
myfwrite(L"\r\n", 2 * sizeof(WCHAR), 1, OUTPUTFILE);
|
|
}
|
|
if((c = skip_cwhite()) == L'#') {
|
|
if(LX_IS_IDENT(c = skip_cwhite())) {
|
|
/*
|
|
** this is the only way to return to the caller.
|
|
*/
|
|
getid(c);
|
|
return(is_pkeyword(Reuse_W)); /* if its predefined */
|
|
}
|
|
}
|
|
goto first_switch;
|
|
break;
|
|
case LX_DQUOTE:
|
|
case LX_SQUOTE:
|
|
skip_quoted(c);
|
|
break;
|
|
case LX_EOS:
|
|
if(handle_eos() == BACKSLASH_EOS) {
|
|
SKIPCH(); /* might be \" !! */
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
** do_defined : does the work for the defined(id)
|
|
** should parens be counted, or just be used as delimiters (ie the
|
|
** first open paren matches the first close paren)? If this is ever
|
|
** an issue, it really means that there is not a legal identifier
|
|
** between the parens, causing an error anyway, but consider:
|
|
** #if (defined(2*(x-1))) || 1
|
|
** #endif
|
|
** It is friendlier to allow compilation to continue
|
|
*************************************************************************/
|
|
int
|
|
do_defined(
|
|
PWCHAR p_tmp
|
|
)
|
|
{
|
|
REG UINT c;
|
|
REG int value=0;
|
|
int paren_level = 0;
|
|
|
|
/*
|
|
** we want to allow:
|
|
** #define FOO defined
|
|
** #define BAR(a,b) a FOO | b
|
|
** #define SNAFOO 0
|
|
** #if FOO BAR
|
|
** print("BAR is defined");
|
|
** #endif
|
|
** #if BAR(defined, SNAFOO)
|
|
** print("FOO is defined");
|
|
** #endif
|
|
*/
|
|
if(wcscmp(p_tmp,L"defined") != 0) {
|
|
return(0);
|
|
}
|
|
if((!can_get_non_white()) && (Tiny_lexer_nesting == 0)) {
|
|
/* NL encountered */
|
|
return(value);
|
|
}
|
|
if((c = CHECKCH())== L'(') { /* assumes no other CHARMAP form of OPAREN */
|
|
*Exp_ptr++ = (WCHAR)c;
|
|
SKIPCH();
|
|
paren_level++;
|
|
if((!can_get_non_white()) && (Tiny_lexer_nesting == 0)) {
|
|
/* NL encountered */
|
|
return(value);
|
|
}
|
|
}
|
|
if(Tiny_lexer_nesting>0) {
|
|
if((CHARMAP((WCHAR)(c=CHECKCH()))==LX_MACFORMAL) || (CHARMAP((WCHAR)c)==LX_ID)) {
|
|
SKIPCH();
|
|
tl_getid((UCHAR)c);
|
|
}
|
|
} else {
|
|
if(LX_IS_IDENT(((WCHAR)(c = CHECKCH())))) {
|
|
SKIPCH();
|
|
if(Macro_depth >0) {
|
|
lex_getid((WCHAR)c);
|
|
} else {
|
|
getid((WCHAR)c);
|
|
}
|
|
value = (get_defined()) ? TRUE : FALSE;
|
|
} else {
|
|
if(paren_level==0) {
|
|
strcpy (Msg_Text, GET_MSG (2003));
|
|
error(2003);
|
|
} else {
|
|
strcpy (Msg_Text, GET_MSG (2004));
|
|
error(2004);
|
|
}
|
|
}
|
|
}
|
|
if((CHARMAP(((WCHAR)(c = CHECKCH()))) == LX_WHITE) || (CHARMAP((WCHAR)c) == LX_EOS)) {
|
|
if( ! can_get_non_white()) {
|
|
return(value);
|
|
}
|
|
}
|
|
if(paren_level) {
|
|
if((CHARMAP(((WCHAR)(c = CHECKCH()))) == LX_CPAREN)) {
|
|
SKIPCH();
|
|
paren_level--;
|
|
*Exp_ptr++ = (WCHAR)c;
|
|
}
|
|
}
|
|
if((paren_level > 0) && (Tiny_lexer_nesting == 0)) {
|
|
strcpy (Msg_Text, GET_MSG (4004));
|
|
warning(4004);
|
|
}
|
|
return(value);
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* NEXTIS - The lexical interface for #if expression parsing.
|
|
* If the next token does not match what is wanted, return FALSE.
|
|
* otherwise Set Currtok to L_NOTOKEN to force scanning on the next call.
|
|
* Return TRUE.
|
|
* will leave a newline as next char if it finds one.
|
|
*************************************************************************/
|
|
int
|
|
nextis(
|
|
register token_t tok
|
|
)
|
|
{
|
|
if(Currtok != L_NOTOKEN) {
|
|
if(tok == Currtok) {
|
|
Currtok = L_NOTOKEN; /* use up the token */
|
|
return(TRUE);
|
|
} else {
|
|
return(FALSE);
|
|
}
|
|
}
|
|
switch(yylex()) { /* acquire a new token */
|
|
case 0:
|
|
break;
|
|
case L_CONSTANT:
|
|
if( ! IS_INTEGRAL(TR_BTYPE(yylval.yy_tree))) {
|
|
strcpy (Msg_Text, GET_MSG (1017));
|
|
fatal (1017);
|
|
} else {
|
|
Currval = TR_LVALUE(yylval.yy_tree);
|
|
}
|
|
if(tok == L_CINTEGER) {
|
|
return(TRUE);
|
|
}
|
|
Currtok = L_CINTEGER;
|
|
break;
|
|
case L_IDENT:
|
|
Currval = do_defined(HLN_IDENTP_NAME(&yylval.yy_ident));
|
|
if(tok == L_CINTEGER) {
|
|
return(TRUE);
|
|
}
|
|
Currtok = L_CINTEGER;
|
|
break;
|
|
default:
|
|
if(tok == Basic_token) {
|
|
return(TRUE);
|
|
}
|
|
Currtok = Basic_token;
|
|
break;
|
|
}
|
|
return(FALSE);
|
|
}
|
|
|
|
|
|
/************************************************************************
|
|
** skip_cnew : reads up to and including the next newline.
|
|
************************************************************************/
|
|
void
|
|
skip_cnew(
|
|
void
|
|
)
|
|
{
|
|
for(;;) {
|
|
switch(CHARMAP(GETCH())) {
|
|
case LX_NL:
|
|
UNGETCH();
|
|
return;
|
|
case LX_SLASH:
|
|
skip_comment();
|
|
break;
|
|
case LX_EOS:
|
|
handle_eos();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/************************************************************************
|
|
** skip_NLonly : reads up to the next newline, disallowing comments
|
|
************************************************************************/
|
|
void
|
|
skip_NLonly(
|
|
void
|
|
)
|
|
{
|
|
for(;;) {
|
|
switch(CHARMAP(GETCH())) {
|
|
case LX_NL:
|
|
UNGETCH();
|
|
return;
|
|
case LX_EOS:
|
|
handle_eos();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/************************************************************************
|
|
** pragma : handle processing the pragma directive
|
|
** called by preprocess() after we have seen the #pragma
|
|
** and are ready to handle the keyword which follows.
|
|
************************************************************************/
|
|
unsigned long
|
|
pragma(
|
|
void
|
|
)
|
|
{
|
|
WCHAR c;
|
|
unsigned long int cp=0;
|
|
|
|
c = skip_cwhite();
|
|
if (c != L'\n') {
|
|
getid(c);
|
|
_wcsupr(Reuse_W);
|
|
if (wcscmp(L"CODE_PAGE", Reuse_W) == 0) {
|
|
if ((c = skip_cwhite()) == L'(') {
|
|
c = skip_cwhite(); // peek token
|
|
if (iswdigit(c)) {
|
|
token_t tok;
|
|
int old_prep = Prep;
|
|
|
|
Prep = FALSE;
|
|
tok = getnum(c);
|
|
Prep = old_prep;
|
|
|
|
switch(tok) {
|
|
default:
|
|
case L_CFLOAT:
|
|
case L_CDOUBLE:
|
|
case L_CLDOUBLE:
|
|
case L_FLOAT:
|
|
case L_DOUBLE:
|
|
break;
|
|
case L_CINTEGER:
|
|
case L_LONGINT:
|
|
case L_CUNSIGNED:
|
|
case L_LONGUNSIGNED:
|
|
case L_SHORT:
|
|
case L_LONG:
|
|
case L_SIGNED:
|
|
case L_UNSIGNED:
|
|
cp = TR_LVALUE(yylval.yy_tree);
|
|
break;
|
|
}
|
|
}
|
|
if (cp == 0) {
|
|
getid(c);
|
|
_wcsupr(Reuse_W);
|
|
if (wcscmp(L"DEFAULT", Reuse_W) == 0) {
|
|
cp = uiDefaultCodePage;
|
|
} else {
|
|
wsprintfA(Msg_Text, "%s%ws", GET_MSG(4212), Reuse_W);
|
|
error(4212);
|
|
}
|
|
}
|
|
if ((c = skip_cwhite()) != L')') {
|
|
UNGETCH();
|
|
strcpy (Msg_Text, GET_MSG (4211));
|
|
error(4211);
|
|
}
|
|
} else {
|
|
UNGETCH();
|
|
strcpy (Msg_Text, GET_MSG (4210));
|
|
error(4210);
|
|
}
|
|
|
|
swprintf(Reuse_W, L"#pragma code_page %d\r\n", cp);
|
|
myfwrite(Reuse_W, wcslen(Reuse_W) * sizeof(WCHAR), 1, OUTPUTFILE);
|
|
}
|
|
}
|
|
// Skip #pragma statements
|
|
while((c = get_non_eof()) != L'\n');
|
|
UNGETCH();
|
|
return cp;
|
|
}
|