mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-23 12:52:46 +00:00
eef399209d
The evil comment is not just "pragmas are bad, ok?", but switching between advanced, extended and tradtitional modes when compiling truly is evil and not guaranteed to work. However, I needed it to make building test cases easier (it's mostly ok to go from advanced to extended or tradtional, but going the other way will probably cause all sorts of fun). In the process, opcode_init now copies the opcode table data rather than modifying it.
385 lines
9.9 KiB
Text
385 lines
9.9 KiB
Text
%{
|
|
/*
|
|
qc-lex.l
|
|
|
|
lexer for quakec
|
|
|
|
Copyright (C) 2001 Bill Currie <bill@taniwha.org>
|
|
|
|
Author: Bill Currie <bill@taniwha.org>
|
|
Date: 2001/06/12
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_STRING_H
|
|
# include <string.h>
|
|
#endif
|
|
#ifdef HAVE_STRINGS_H
|
|
# include <strings.h>
|
|
#endif
|
|
#include <stdlib.h>
|
|
#include <ctype.h>
|
|
|
|
#include <QF/dstring.h>
|
|
#include <QF/hash.h>
|
|
#include <QF/sys.h>
|
|
|
|
#include "class.h"
|
|
#include "debug.h"
|
|
#include "diagnostic.h"
|
|
#include "expr.h"
|
|
#include "grab.h"
|
|
#include "options.h"
|
|
#include "pragma.h"
|
|
#include "qfcc.h"
|
|
#include "strpool.h"
|
|
#include "struct.h"
|
|
#include "symtab.h"
|
|
#include "type.h"
|
|
#include "value.h"
|
|
|
|
#include "qc-parse.h"
|
|
|
|
#ifndef YY_PROTO
|
|
# define YY_PROTO(x) x
|
|
#else
|
|
# define YY_FLEX_REALLOC_HACK
|
|
#endif
|
|
int yyget_lineno (void);
|
|
FILE *yyget_in (void);
|
|
FILE *yyget_out (void);
|
|
int yyget_leng (void);
|
|
char *yyget_text (void);
|
|
void yyset_lineno (int line_number);
|
|
void yyset_in (FILE * in_str);
|
|
void yyset_out (FILE * out_str);
|
|
int yyget_debug (void);
|
|
void yyset_debug (int bdebug);
|
|
int yylex_destroy (void);
|
|
|
|
#define YY_NO_UNPUT
|
|
#define YY_DECL int yylex YY_PROTO(( void ))
|
|
YY_DECL;
|
|
|
|
|
|
static int keyword_or_id (char *token);
|
|
|
|
extern QC_YYSTYPE qc_yylval;
|
|
|
|
%}
|
|
|
|
s [ \t]
|
|
m [\-+]
|
|
D [0-9]
|
|
X [0-9a-fA-F]
|
|
ID [a-zA-Z_][a-zA-Z_0-9]*
|
|
FLOAT ({D}+|{D}*\.{D}+|{D}+\.{D}*)([eE]{m}?{D}+)?
|
|
INT ({D}+|0[xX]{X}+)
|
|
RANGE \.\.
|
|
ELLIPSIS \.\.\.
|
|
FRAMEID {ID}(\.{ID})*
|
|
PRAGMAID {ID}(-{ID})*
|
|
STRING \"(\\.|[^"\\])*\"
|
|
|
|
%x GRAB_FRAME GRAB_OTHER COMMENT PRAGMA
|
|
|
|
%%
|
|
grab_frame = GRAB_FRAME;
|
|
grab_other = GRAB_OTHER;
|
|
|
|
"/*" { BEGIN (COMMENT); }
|
|
<COMMENT>"/*" { warning (0, "nested /* in comment"); }
|
|
<COMMENT>"*/" { BEGIN (INITIAL); }
|
|
<COMMENT>\r*\n { pr.source_line++; }
|
|
<COMMENT>. /* nothing to do */
|
|
<COMMENT><<EOF>> { error (0, "EOF in comment"); return 0; }
|
|
"//".* /* nothing to do */
|
|
|
|
^#{s}+{D}+{s}+\"(\.|[^"\n])*\".*$ { line_info (yytext + 1); }
|
|
^#line{s}+{D}+{s}+\"(\.|[^"\n])*\".*$ { line_info (yytext + 5); }
|
|
|
|
^{s}*#{s}*pragma{s}+ { BEGIN (PRAGMA); }
|
|
|
|
{INT}+[uU]? {
|
|
const char *c = yytext + yyleng - 1;
|
|
int i = strtol (yytext, 0, 0);
|
|
if (*c == 'u' || *c == 'U')
|
|
qc_yylval.expr = new_integer_expr (i);//FIXME
|
|
else
|
|
qc_yylval.expr = new_integer_expr (i);
|
|
return CONST;
|
|
}
|
|
|
|
{FLOAT} {
|
|
float f = strtof (yytext, 0);
|
|
qc_yylval.expr = new_float_expr (f);
|
|
return CONST;
|
|
}
|
|
|
|
{ID} {
|
|
int tok = keyword_or_id(yytext);
|
|
return tok;
|
|
}
|
|
@{ID} {
|
|
int tok = keyword_or_id(yytext);
|
|
if (tok == '@')
|
|
REJECT;
|
|
return tok;
|
|
}
|
|
|
|
{STRING} {
|
|
const char *s = make_string (yytext, 0);
|
|
qc_yylval.expr = new_string_expr (s);
|
|
return STRING;
|
|
}
|
|
@ return '@';
|
|
|
|
'{s}*{m}?{FLOAT}{s}+{m}?{FLOAT}{s}+{m}?{FLOAT}{s}*' {
|
|
vec3_t v;
|
|
sscanf (yytext, "' %f %f %f '",
|
|
&v[0], &v[1], &v[2]);
|
|
qc_yylval.expr = new_vector_expr (v);
|
|
return CONST;
|
|
}
|
|
|
|
'{s}*{m}?{FLOAT}{s}+{m}?{FLOAT}{s}+{m}?{FLOAT}{s}+{m}?{FLOAT}{s}*' {
|
|
quat_t q;
|
|
sscanf (yytext, "' %f %f %f %f'",
|
|
&q[0], &q[1], &q[2], &q[3]);
|
|
qc_yylval.expr = new_quaternion_expr (q);
|
|
return CONST;
|
|
}
|
|
|
|
'(\\[^xX0-7\r\n]|[^'\r\n]|\\[xX][0-9A-Fa-f]+|\\[0-7]+)*' {
|
|
const char *str = make_string (yytext, 0);
|
|
|
|
if (str[1])
|
|
warning (0, "multibyte char constant");
|
|
qc_yylval.expr = new_integer_expr (*str);
|
|
return CONST;
|
|
}
|
|
|
|
[+\-*/&|^%]= {
|
|
qc_yylval.op = yytext[0];
|
|
return ASX;
|
|
}
|
|
|
|
"<<=" {
|
|
qc_yylval.op = SHL;
|
|
return ASX;
|
|
}
|
|
|
|
">>=" {
|
|
qc_yylval.op = SHR;
|
|
return ASX;
|
|
}
|
|
|
|
[!(){}.*/&|^~+\-=\[\];,#%?:] {
|
|
qc_yylval.pointer = 0; // ensure pointer vals are null
|
|
return yytext[0];
|
|
}
|
|
|
|
{ELLIPSIS} return ELLIPSIS;
|
|
|
|
"<<" return SHL;
|
|
">>" return SHR;
|
|
|
|
"&&" return AND;
|
|
"||" return OR;
|
|
"==" return EQ;
|
|
"!=" return NE;
|
|
"<=" return LE;
|
|
">=" return GE;
|
|
"<" return LT;
|
|
">" return GT;
|
|
|
|
"++" {
|
|
qc_yylval.op = '+';
|
|
return INCOP;
|
|
}
|
|
|
|
"--" {
|
|
qc_yylval.op = '-';
|
|
return INCOP;
|
|
}
|
|
|
|
"$"{s}*{FRAMEID} {
|
|
int ret = do_grab (yytext);
|
|
if (ret >= 0) {
|
|
qc_yylval.expr = new_integer_expr (ret);
|
|
return CONST;
|
|
} else {
|
|
BEGIN (-ret);
|
|
}
|
|
}
|
|
|
|
<GRAB_FRAME>{FRAMEID} add_frame_macro (yytext);
|
|
<GRAB_OTHER>[^\r\n]* /* skip */
|
|
<PRAGMA>{ID} { pragma (yytext); }
|
|
|
|
<*>\r*\n {
|
|
pr.source_line++;
|
|
BEGIN (INITIAL);
|
|
}
|
|
|
|
<*>{s}* /* skip */
|
|
|
|
<*>. error (0, "all your typo are belong to us");
|
|
|
|
%%
|
|
|
|
int
|
|
yywrap (void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
typedef struct {
|
|
const char *name;
|
|
int value;
|
|
type_t *type;
|
|
int traditional;
|
|
unsigned version;
|
|
int objc;
|
|
} keyword_t;
|
|
|
|
static keyword_t keywords[] = {
|
|
{"void", TYPE, &type_void, 2, PROG_ID_VERSION, 0},
|
|
{"float", TYPE, &type_float, 2, PROG_ID_VERSION, 0},
|
|
{"string", TYPE, &type_string, 2, PROG_ID_VERSION, 0},
|
|
{"vector", TYPE, &type_vector, 2, PROG_ID_VERSION, 0},
|
|
{"entity", TYPE, &type_entity, 2, PROG_ID_VERSION, 0},
|
|
{"quaternion", TYPE, &type_quaternion, 0, PROG_VERSION, 0},
|
|
{"int", TYPE, &type_integer, 0, PROG_VERSION, 0},
|
|
{"unsigned", TYPE, &type_integer, 0, PROG_VERSION, 0},//FIXME
|
|
{"function", TYPE, &type_function, 0, PROG_VERSION, 0},
|
|
{"id", TYPE, &type_id, 0, PROG_VERSION, 1},
|
|
{"Class", TYPE, &type_Class, 0, PROG_VERSION, 1},
|
|
// {"Protocol", TYPE, &type_Protocol, 0, PROG_VERSION, 0},
|
|
{"Method", TYPE, &type_obj_method, 0, PROG_VERSION, 1},
|
|
{"Super", TYPE, &type_obj_super, 0, PROG_VERSION, 1},
|
|
{"SEL", TYPE, &type_SEL, 0, PROG_VERSION, 1},
|
|
{"IMP", TYPE, &type_IMP, 0, PROG_VERSION, 1},
|
|
{"local", LOCAL, 0, 2, PROG_ID_VERSION, 0},
|
|
{"return", RETURN, 0, 2, PROG_ID_VERSION, 0},
|
|
{"while", WHILE, 0, 2, PROG_ID_VERSION, 0},
|
|
{"do", DO, 0, 2, PROG_ID_VERSION, 0},
|
|
{"if", IF, 0, 2, PROG_ID_VERSION, 0},
|
|
{"else", ELSE, 0, 2, PROG_ID_VERSION, 0},
|
|
{"for", FOR, 0, 1, PROG_ID_VERSION, 0},
|
|
{"break", BREAK, 0, 2, PROG_ID_VERSION, 0},
|
|
{"continue", CONTINUE, 0, 1, PROG_ID_VERSION, 0},
|
|
{"switch", SWITCH, 0, 1, PROG_ID_VERSION, 0},
|
|
{"case", CASE, 0, 1, PROG_ID_VERSION, 0},
|
|
{"default", DEFAULT, 0, 1, PROG_ID_VERSION, 0},
|
|
{"nil", NIL, 0, 0, PROG_ID_VERSION, 0},
|
|
{"struct", STRUCT, 0, 0, PROG_VERSION, 0},
|
|
{"union", STRUCT, 0, 0, PROG_VERSION, 0},
|
|
{"enum", ENUM, 0, 0, PROG_ID_VERSION, 0},
|
|
{"typedef", TYPEDEF, 0, 0, PROG_ID_VERSION, 0},
|
|
|
|
// these two are a hack to trigger the initialization of the class
|
|
// sytem if they are seen before any other Objective-QC symbol
|
|
{"obj_module_s", 0, 0, 0, PROG_VERSION, 1},
|
|
{"obj_module_t", 0, 0, 0, PROG_VERSION, 1},
|
|
|
|
{"@class", CLASS, 0, 0, PROG_VERSION, 1},
|
|
{"@defs", DEFS, 0, 0, PROG_VERSION, 1},
|
|
{"@encode", ENCODE, 0, 0, PROG_VERSION, 1},
|
|
{"@end", END, 0, 0, PROG_VERSION, 1},
|
|
{"@implementation", IMPLEMENTATION, 0, 0, PROG_VERSION, 1},
|
|
{"@interface", INTERFACE, 0, 0, PROG_VERSION, 1},
|
|
{"@private", PRIVATE, 0, 0, PROG_VERSION, 1},
|
|
{"@protected", PROTECTED, 0, 0, PROG_VERSION, 1},
|
|
{"@protocol", PROTOCOL, 0, 0, PROG_VERSION, 1},
|
|
{"@public", PUBLIC, 0, 0, PROG_VERSION, 1},
|
|
{"@reference", REFERENCE, 0, 0, PROG_VERSION, 1},
|
|
{"@selector", SELECTOR, 0, 0, PROG_VERSION, 1},
|
|
{"@self", SELF, 0, 0, PROG_VERSION, 1},
|
|
{"@this", THIS, 0, 0, PROG_VERSION, 1},
|
|
{"@args", ARGS, 0, 0, PROG_VERSION, 0},
|
|
{"@va_list", TYPE, &type_va_list, 0, PROG_VERSION, 0},
|
|
{"@param", TYPE, &type_param, 0, PROG_VERSION, 0},
|
|
{"@extern", EXTERN, 0, 1, PROG_ID_VERSION, 0},
|
|
{"@static", STATIC, 0, 1, PROG_ID_VERSION, 0},
|
|
{"@system", SYSTEM, 0, 1, PROG_ID_VERSION, 0},
|
|
{"@sizeof", SIZEOF, 0, 0, PROG_VERSION, 0},
|
|
{"@overload", OVERLOAD, 0, 0, PROG_VERSION, 0},
|
|
};
|
|
|
|
static const char *
|
|
keyword_get_key (const void *kw, void *unused)
|
|
{
|
|
return ((keyword_t*)kw)->name;
|
|
}
|
|
|
|
static int
|
|
keyword_or_id (char *token)
|
|
{
|
|
static hashtab_t *keyword_tab;
|
|
keyword_t *keyword;
|
|
symbol_t *sym;
|
|
|
|
if (!keyword_tab) {
|
|
size_t i;
|
|
keyword_tab = Hash_NewTable (1021, keyword_get_key, 0, 0);
|
|
for (i = 0; i < sizeof (keywords) / sizeof (keywords[0]); i++)
|
|
if (keywords[i].traditional >= options.traditional
|
|
&& keywords[i].version <= options.code.progsversion)
|
|
Hash_Add (keyword_tab, &keywords[i]);
|
|
}
|
|
keyword = Hash_Find (keyword_tab, token);
|
|
if (keyword) {
|
|
if (!options.traditional && keyword->objc && !obj_initialized)
|
|
class_init ();
|
|
if (keyword->value) {
|
|
if (keyword->value == STRUCT) {
|
|
qc_yylval.op = token[0];
|
|
} else {
|
|
qc_yylval.type = 0;
|
|
qc_yylval.type = keyword->type;
|
|
}
|
|
return keyword->value;
|
|
}
|
|
}
|
|
if (token[0] == '@') {
|
|
return '@';
|
|
}
|
|
sym = symtab_lookup (current_symtab, token);
|
|
if (!sym)
|
|
sym = new_symbol (token);
|
|
qc_yylval.symbol = sym;
|
|
if (sym->sy_type == sy_type)
|
|
return TYPE_NAME;
|
|
if (sym->sy_type == sy_class)
|
|
return CLASS_NAME;
|
|
return NAME;
|
|
}
|
|
|
|
#ifdef YY_FLEX_REALLOC_HACK
|
|
static __attribute__ ((used)) void *(*const yy_flex_realloc_hack)(void *,yy_size_t) = yy_flex_realloc;
|
|
#else
|
|
static __attribute__ ((used)) void (*yyunput_hack)(int, char*) = yyunput;
|
|
static __attribute__ ((used)) int (*input_hack)(void) = input;
|
|
#endif
|