add prototype for print_expr
expr.c:
	add print_expr
	correct string accessors
	currect the result type for unary operators
qc-lex.l:
	correct string, vector and quaternion parsing
qc-parse.y:
	precedence corrections and more function scope work

CustomTF gets through the parsing again.
This commit is contained in:
Bill Currie 2001-06-25 17:15:56 +00:00
parent 3dbc913903
commit ab051248e8
4 changed files with 91 additions and 18 deletions

View file

@ -34,6 +34,7 @@ typedef struct expr_s {
} expr_t; } expr_t;
expr_t *new_expr (void); expr_t *new_expr (void);
void print_expr (expr_t *e);
expr_t *binary_expr (int op, expr_t *e1, expr_t *e2); expr_t *binary_expr (int op, expr_t *e1, expr_t *e2);
expr_t *unary_expr (int op, expr_t *e); expr_t *unary_expr (int op, expr_t *e);
expr_t *function_expr (expr_t *e1, expr_t *e2); expr_t *function_expr (expr_t *e1, expr_t *e2);

View file

@ -63,6 +63,68 @@ new_expr ()
return calloc (1, sizeof (expr_t)); return calloc (1, sizeof (expr_t));
} }
void
print_expr (expr_t *e)
{
printf (" ");
switch (e->type) {
case ex_statement:
break;
case ex_expr:
print_expr (e->e.expr.e1);
if (e->e.expr.op == 'c') {
expr_t *p = e->e.expr.e2;
printf ("(");
while (p) {
print_expr (p);
if (p->next)
printf (",");
p = p->next;
}
printf (")");
} else {
print_expr (e->e.expr.e2);
if (isprint (e->e.expr.op)) {
printf (" %c", e->e.expr.op);
} else {
printf (" %d", e->e.expr.op);
}
}
break;
case ex_uexpr:
print_expr (e->e.expr.e1);
if (isprint (e->e.expr.op)) {
printf (" u%c", e->e.expr.op);
} else {
printf (" u%d", e->e.expr.op);
}
break;
case ex_def:
printf ("%s", e->e.def->name);
break;
case ex_int:
printf ("%d", e->e.int_val);
break;
case ex_float:
printf ("%g", e->e.float_val);
break;
case ex_string:
printf ("\"%s\"", strings + e->e.string_val);
break;
case ex_vector:
printf ("'%g", e->e.vector_val[0]);
printf ( " %g", e->e.vector_val[1]);
printf ( " %g'", e->e.vector_val[2]);
break;
case ex_quaternion:
printf ("'%g", e->e.quaternion_val[0]);
printf (" %g", e->e.quaternion_val[1]);
printf (" %g", e->e.quaternion_val[2]);
printf (" %g'", e->e.quaternion_val[3]);
break;
}
}
static expr_t * static expr_t *
do_op_string (int op, expr_t *e1, expr_t *e2) do_op_string (int op, expr_t *e1, expr_t *e2)
{ {
@ -70,8 +132,8 @@ do_op_string (int op, expr_t *e1, expr_t *e2)
char *buf; char *buf;
char *s1, *s2; char *s1, *s2;
s1 = G_STRING(e1->e.string_val); s1 = strings + e1->e.string_val;
s2 = G_STRING(e2->e.string_val); s2 = strings + e2->e.string_val;
switch (op) { switch (op) {
case '+': case '+':
@ -367,7 +429,7 @@ unary_expr (int op, expr_t *e)
case ex_def: case ex_def:
{ {
expr_t *n = new_expr (); expr_t *n = new_expr ();
n->type = ex_expr; n->type = ex_uexpr;
n->e.expr.op = op; n->e.expr.op = op;
n->e.expr.type = (e->type == ex_def) n->e.expr.type = (e->type == ex_def)
? e->e.def->type ? e->e.def->type
@ -405,7 +467,7 @@ unary_expr (int op, expr_t *e)
case ex_def: case ex_def:
{ {
expr_t *n = new_expr (); expr_t *n = new_expr ();
n->type = ex_expr; n->type = ex_uexpr;
n->e.expr.op = op; n->e.expr.op = op;
n->e.expr.type = &type_float; n->e.expr.type = &type_float;
n->e.expr.e1 = e; n->e.expr.e1 = e;

View file

@ -62,22 +62,24 @@ m ([\-+]?)
{ID} return type_or_name(yytext); {ID} return type_or_name(yytext);
\"(\\.|[^"])*\" { \"(\\.|[^"])*\" {
yylval.string_val = strdup (yytext); int len = strlen (yytext) - 2;
yylval.string_val = malloc (len + 1);
strncpy (yylval.string_val, yytext + 1, len);
yylval.string_val[len] = 0;
return STRING_VAL; return STRING_VAL;
} }
'{s}*{m}{NUM}{s}+{m}{NUM}{s}+{m}{NUM}{s}*' { '{s}*{m}{NUM}{s}+{m}{NUM}{s}+{m}{NUM}{s}*' {
sscanf (yytext, "%f %f %f", &yylval.vector_val[0], sscanf (yytext, "' %f %f %f '",
&yylval.vector_val[1], &yylval.vector_val[0], &yylval.vector_val[1],
&yylval.vector_val[2]); &yylval.vector_val[2]);
return VECTOR_VAL; return VECTOR_VAL;
} }
'{s}*{m}{NUM}{s}+{m}{NUM}{s}+{m}{NUM}{s}+{m}{NUM}{s}*' { '{s}*{m}{NUM}{s}+{m}{NUM}{s}+{m}{NUM}{s}+{m}{NUM}{s}*' {
sscanf (yytext, "%f %f %f %f", &yylval.vector_val[0], sscanf (yytext, "' %f %f %f %f '",
&yylval.vector_val[1], &yylval.vector_val[0], &yylval.vector_val[1],
&yylval.vector_val[2], &yylval.vector_val[2], &yylval.vector_val[3]);
&yylval.vector_val[3]);
return VECTOR_VAL; return VECTOR_VAL;
} }

View file

@ -20,7 +20,7 @@ void PR_PrintType(type_t*);
type_t *parse_params (def_t *parms); type_t *parse_params (def_t *parms);
function_t *new_function (void); function_t *new_function (void);
void build_scope (def_t *func, def_t *parms); void build_scope (def_t *func);
typedef struct { typedef struct {
type_t *type; type_t *type;
@ -48,8 +48,9 @@ typedef struct {
%left EQ NE LE GE LT GT %left EQ NE LE GE LT GT
%left '+' '-' %left '+' '-'
%left '*' '/' '&' '|' %left '*' '/' '&' '|'
%left '!' '.' %left '!'
%right '(' %right '('
%left '.'
%token <string_val> NAME STRING_VAL %token <string_val> NAME STRING_VAL
%token <int_val> INT_VAL %token <int_val> INT_VAL
@ -130,7 +131,6 @@ maybe_func
} }
param_list param_list
{ {
$<def>$ = param_scope.scope_next;
PR_FlushScope (&param_scope); PR_FlushScope (&param_scope);
current_type = $<scope>2.type; current_type = $<scope>2.type;
param_scope.scope_next = $<scope>2.pscope; param_scope.scope_next = $<scope>2.pscope;
@ -138,7 +138,7 @@ maybe_func
} }
')' ')'
{ {
$$ = parse_params ($<def>4); $$ = parse_params ($3);
} }
| '(' ')' | '(' ')'
{ {
@ -230,6 +230,7 @@ begin_function
: /*empty*/ : /*empty*/
{ {
pr_scope = current_def; pr_scope = current_def;
build_scope (current_def);
} }
; ;
@ -300,9 +301,9 @@ expr
| expr '/' expr { $$ = binary_expr ('/', $1, $3); } | expr '/' expr { $$ = binary_expr ('/', $1, $3); }
| expr '&' expr { $$ = binary_expr ('&', $1, $3); } | expr '&' expr { $$ = binary_expr ('&', $1, $3); }
| expr '|' expr { $$ = binary_expr ('|', $1, $3); } | expr '|' expr { $$ = binary_expr ('|', $1, $3); }
| expr '.' expr { $$ = binary_expr ('.', $1, $3); }
| expr '(' arg_list ')' { $$ = function_expr ($1, $3); } | expr '(' arg_list ')' { $$ = function_expr ($1, $3); }
| expr '(' ')' { $$ = function_expr ($1, 0); } | expr '(' ')' { $$ = function_expr ($1, 0); }
| expr '.' expr { $$ = binary_expr ('.', $1, $3); }
| '-' expr { $$ = unary_expr ('-', $2); } | '-' expr { $$ = unary_expr ('-', $2); }
| '!' expr { $$ = unary_expr ('!', $2); } | '!' expr { $$ = unary_expr ('!', $2); }
| NAME | NAME
@ -394,8 +395,15 @@ parse_params (def_t *parms)
} }
void void
build_scope (def_t *func, def_t *parms) build_scope (def_t *func)
{ {
int i;
def_t *def;
type_t *ftype = func->type;
for (i = 0; i < ftype->num_parms; i++) {
def = PR_GetDef (ftype->parm_types[i], pr_parm_names[i], func, &func->num_locals);
}
} }
function_t * function_t *