index 1bc106418052659854e49dbda93c54c876ba8669..e9c95864ed71c5c23d5bc53439d5e4206428e608 100644 (file)
/* -*-c-*- ------------------ mix_eval_scanner.l :
* scanner used by mix_eval_t
* ------------------------------------------------------------------
- * Last change: Time-stamp: <01/04/01 15:08:21 jose>
+ * $Id: mix_eval_scanner.l,v 1.3 2004年08月02日 08:53:54 jao Exp $
* ------------------------------------------------------------------
- * Copyright (C) 2000 Free Software Foundation, Inc.
- *
+ * Copyright (C) 2000, 2004 Free Software Foundation, Inc.
+ *
* 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 the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
+ *
*/
%{
#define YY_DECL \
mix_eval_result_t mix_eval_expr (mix_eval_data_ *data)
-/* keep track of current position in buffer */
+/* keep track of current position in buffer */
#define YY_USER_ACTION yypos += yyleng;
#define RETURN_STATE(err) \
g_free (expr_cp); \
} while (FALSE)
-static mix_word_t
- eval_binop_ (const gchar *op, mix_word_t x, mix_word_t y);
-
-static int
- unput_word_ (mix_word_t word);
-
+static mix_word_t eval_binop_ (const gchar *op, mix_word_t x, mix_word_t y);
+
+static int unput_word_ (mix_word_t word);
+
+/* { */
+/* gchar *value; */
+/* gint k, result; */
+/* value = g_strdup_printf ("%s%ld", */
+/* mix_word_is_negative (word)? "-":"+", */
+/* mix_word_magnitude (word)); */
+/* result = strlen (value); */
+/* for (k = result - 1; k >= 0; --k) */
+/* unput (value[k]); */
+/* g_free (value); */
+/* return result; */
+/* } */
+
%}
%option nomain
%option caseless
-%option pointer
+%option array
%option stack
%option noyywrap
%option noyy_top_state
expr [+-]?{atexpr}({binop}{1}{atexpr})*
fpart \({expr}\)
wexpr {expr}({fpart})?(,{expr}({fpart})?)*
-
+
%%
@@ -98,7 +109,7 @@ wexpr {expr}({fpart})?(,{expr}({fpart})?)*
buffer = yy_scan_string (expr_cp);
data->errpos = -1;
%}
-
+
<*><<EOF>> {
CLEAN_UP ();
@@ -126,7 +137,7 @@ wexpr {expr}({fpart})?(,{expr}({fpart})?)*
data->errpos = yypos;
return state;
}
-}
+}
<WEVAL>{
{number}"(" {
}
{number}")" {
glong val = atol (yytext);
- if ( !is_fp ) {
+ if ( !is_fp ) {
RETURN_STATE (MIX_EVAL_MIS_PAREN);
- } else if ( val < 0 || val > MIX_BYTE_MAX
+ } else if ( val < 0 || val > MIX_BYTE_MAX
|| !mix_fspec_is_valid (mix_byte_new (val)) ) {
RETURN_STATE (MIX_EVAL_INV_FSPEC);
} else {
is_fp = FALSE;
wexpr_val = mix_word_store_field (mix_byte_new (val),
- wexpr_val_tmp,
+ wexpr_val_tmp,
wexpr_val);
}
}
if ( !mix_symbol_table_is_defined (data->table, s) ) {
RETURN_STATE (MIX_EVAL_UNDEF_SYM);
}
- expr_val = eval_binop_ (yytext, expr_val,
+ expr_val = eval_binop_ (yytext, expr_val,
mix_symbol_table_value (data->table, s));
}
{binop}"*" {
- expr_val = eval_binop_ (yytext, expr_val,
+ expr_val = eval_binop_ (yytext, expr_val,
mix_short_to_word_fast (data->loc));
}
"*" yypos -= unput_word_ (mix_short_to_word_fast (data->loc));
@@ -207,7 +218,7 @@ wexpr {expr}({fpart})?(,{expr}({fpart})?)*
yypos -= unput_word_ (expr_val);
yy_pop_state ();
}
-
+
. RETURN_STATE (MIX_EVAL_SYNTAX);
}
@@ -220,8 +231,8 @@ eval_binop_ (const gchar *op, mix_word_t x, mix_word_t y)
mix_word_t result = MIX_WORD_ZERO;
switch (op[0])
{
- case '+':
- result = mix_word_add (x,y);
+ case '+':
+ result = mix_word_add (x,y);
break;
case '-':
result = mix_word_sub (x,y);
@@ -249,18 +260,17 @@ eval_binop_ (const gchar *op, mix_word_t x, mix_word_t y)
return result;
}
-
static int
-unput_word_ (mix_word_t word)
-{
- gchar *value;
- gint k, result;
- value = g_strdup_printf ("%s%ld",
- mix_word_is_negative (word)? "-":"+",
- mix_word_magnitude (word));
+unput_word_ (mix_word_t word)
+{
+ gchar *value;
+ gint k, result;
+ value = g_strdup_printf ("%s%ld",
+ mix_word_is_negative (word)? "-":"+",
+ mix_word_magnitude (word));
result = strlen (value);
- for (k = result - 1; k >= 0; --k)
- unput (value[k]);
+ for (k = result - 1; k >= 0; --k)
+ unput (value[k]);
g_free (value);
return result;
}
index fcd6054e43f0d4c7dd784cf3babff305680d933c..e85b6c892570988657b4848e839ed1023b786e70 100644 (file)
} while (FALSE)
-static mix_word_t
-eval_binop_ (const gchar *op, mix_word_t x, mix_word_t y);
-
-static void yyunput(int, char*);
+static mix_word_t eval_binop_ (const gchar *op, mix_word_t x, mix_word_t y);
-static void
-unput_word_ (mix_word_t word)
- {
- gchar *value;
- gint k;
- value = g_strdup_printf ("%s%ld",
- mix_word_is_negative (word)? "-":"+",
- mix_word_magnitude (word));
- for (k = strlen (value) - 1; k >= 0; --k)
- unput (value[k]);
- g_free (value);
- }
+static void unput_word_ (mix_word_t word);
%}
%option nomain
%option caseless
-%option pointer
+%option array
%option stack
%option noyywrap
%option noyy_top_state
@@ -557,3 +543,15 @@ eval_binop_ (const gchar *op, mix_word_t x, mix_word_t y)
return result;
}
+static void
+unput_word_ (mix_word_t word)
+{
+ gchar *value;
+ gint k;
+ value = g_strdup_printf ("%s%ld",
+ mix_word_is_negative (word)? "-":"+",
+ mix_word_magnitude (word));
+ for (k = strlen (value) - 1; k >= 0; --k)
+ unput (value[k]);
+ g_free (value);
+}