#line 2 "mix_eval_scanner.c" #line 4 "mix_eval_scanner.c" #define YY_INT_ALIGNED short int /* A lexical scanner generated by flex */ #define FLEX_SCANNER #define YY_FLEX_MAJOR_VERSION 2 #define YY_FLEX_MINOR_VERSION 5 #define YY_FLEX_SUBMINOR_VERSION 31 #if YY_FLEX_SUBMINOR_VERSION > 0 #define FLEX_BETA #endif /* First, we deal with platform-specific or compiler-specific issues. */ /* begin standard C headers. */ #include #include #include #include /* end standard C headers. */ /* flex integer type definitions */ #ifndef FLEXINT_H #define FLEXINT_H /* C99 systems have . Non-C99 systems may or may not. */ #if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L #include typedef int8_t flex_int8_t; typedef uint8_t flex_uint8_t; typedef int16_t flex_int16_t; typedef uint16_t flex_uint16_t; typedef int32_t flex_int32_t; typedef uint32_t flex_uint32_t; #else typedef signed char flex_int8_t; typedef short int flex_int16_t; typedef int flex_int32_t; typedef unsigned char flex_uint8_t; typedef unsigned short int flex_uint16_t; typedef unsigned int flex_uint32_t; #endif /* ! C99 */ /* Limits of integral types. */ #ifndef INT8_MIN #define INT8_MIN (-128) #endif #ifndef INT16_MIN #define INT16_MIN (-32767-1) #endif #ifndef INT32_MIN #define INT32_MIN (-2147483647-1) #endif #ifndef INT8_MAX #define INT8_MAX (127) #endif #ifndef INT16_MAX #define INT16_MAX (32767) #endif #ifndef INT32_MAX #define INT32_MAX (2147483647) #endif #ifndef UINT8_MAX #define UINT8_MAX (255U) #endif #ifndef UINT16_MAX #define UINT16_MAX (65535U) #endif #ifndef UINT32_MAX #define UINT32_MAX (4294967295U) #endif #endif /* ! FLEXINT_H */ #ifdef __cplusplus /* The "const" storage-class-modifier is valid. */ #define YY_USE_CONST #else /* ! __cplusplus */ #if __STDC__ #define YY_USE_CONST #endif /* __STDC__ */ #endif /* ! __cplusplus */ #ifdef YY_USE_CONST #define yyconst const #else #define yyconst #endif /* Returned upon end-of-file. */ #define YY_NULL 0 /* Promotes a possibly negative, possibly signed char to an unsigned * integer for use as an array index. If the signed char is negative, * we want to instead treat it as an 8-bit unsigned char, hence the * double cast. */ #define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) /* Enter a start condition. This macro really ought to take a parameter, * but we do it the disgusting crufty way forced on us by the ()-less * definition of BEGIN. */ #define BEGIN (yy_start) = 1 + 2 * /* Translate the current start state into a value that can be later handed * to BEGIN to return to the state. The YYSTATE alias is for lex * compatibility. */ #define YY_START (((yy_start) - 1) / 2) #define YYSTATE YY_START /* Action number for EOF rule of a given start state. */ #define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) /* Special action meaning "start processing a new file". */ #define YY_NEW_FILE yyrestart(yyin ) #define YY_END_OF_BUFFER_CHAR 0 /* Size of default input buffer. */ #ifndef YY_BUF_SIZE #define YY_BUF_SIZE 16384 #endif #ifndef YY_TYPEDEF_YY_BUFFER_STATE #define YY_TYPEDEF_YY_BUFFER_STATE typedef struct yy_buffer_state *YY_BUFFER_STATE; #endif extern int yyleng; extern FILE *yyin, *yyout; #define EOB_ACT_CONTINUE_SCAN 0 #define EOB_ACT_END_OF_FILE 1 #define EOB_ACT_LAST_MATCH 2 #define YY_LESS_LINENO(n) /* Return all but the first "n" matched characters back to the input stream. */ #define yyless(n) \ do \ { \ /* Undo effects of setting up yytext. */ \ int yyless_macro_arg = (n); \ YY_LESS_LINENO(yyless_macro_arg);\ *yy_cp = (yy_hold_char); \ YY_RESTORE_YY_MORE_OFFSET \ (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ YY_DO_BEFORE_ACTION; /* set up yytext again */ \ } \ while ( 0 ) #define unput(c) yyunput( c, (yytext_ptr) ) /* The following is because we cannot portably get our hands on size_t * (without autoconf's help, which isn't available because we want * flex-generated scanners to compile on their own). */ #ifndef YY_TYPEDEF_YY_SIZE_T #define YY_TYPEDEF_YY_SIZE_T typedef unsigned int yy_size_t; #endif #ifndef YY_STRUCT_YY_BUFFER_STATE #define YY_STRUCT_YY_BUFFER_STATE struct yy_buffer_state { FILE *yy_input_file; char *yy_ch_buf; /* input buffer */ char *yy_buf_pos; /* current position in input buffer */ /* Size of input buffer in bytes, not including room for EOB * characters. */ yy_size_t yy_buf_size; /* Number of characters read into yy_ch_buf, not including EOB * characters. */ int yy_n_chars; /* Whether we "own" the buffer - i.e., we know we created it, * and can realloc() it to grow it, and should free() it to * delete it. */ int yy_is_our_buffer; /* Whether this is an "interactive" input source; if so, and * if we're using stdio for input, then we want to use getc() * instead of fread(), to make sure we stop fetching input after * each newline. */ int yy_is_interactive; /* Whether we're considered to be at the beginning of a line. * If so, '^' rules will be active on the next match, otherwise * not. */ int yy_at_bol; int yy_bs_lineno; /**< The line count. */ int yy_bs_column; /**< The column count. */ /* Whether to try to fill the input buffer when we reach the * end of it. */ int yy_fill_buffer; int yy_buffer_status; #define YY_BUFFER_NEW 0 #define YY_BUFFER_NORMAL 1 /* When an EOF's been seen but there's still some text to process * then we mark the buffer as YY_EOF_PENDING, to indicate that we * shouldn't try reading from the input source any more. We might * still have a bunch of tokens to match, though, because of * possible backing-up. * * When we actually see the EOF, we change the status to "new" * (via yyrestart()), so that the user can continue scanning by * just pointing yyin at a new input file. */ #define YY_BUFFER_EOF_PENDING 2 }; #endif /* !YY_STRUCT_YY_BUFFER_STATE */ /* Stack of input buffers. */ static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */ static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */ static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */ /* We provide macros for accessing buffer states in case in the * future we want to put the buffer states in a more general * "scanner state". * * Returns the top of the stack, or NULL. */ #define YY_CURRENT_BUFFER ( (yy_buffer_stack) \ ? (yy_buffer_stack)[(yy_buffer_stack_top)] \ : NULL) /* Same as previous macro, but useful when we know that the buffer stack is not * NULL or when we need an lvalue. For internal use only. */ #define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)] /* yy_hold_char holds the character lost when yytext is formed. */ static char yy_hold_char; static int yy_n_chars; /* number of characters read into yy_ch_buf */ int yyleng; /* Points to current character in buffer. */ static char *yy_c_buf_p = (char *) 0; static int yy_init = 1; /* whether we need to initialize */ static int yy_start = 0; /* start state number */ /* Flag which is used to allow yywrap()'s to do buffer switches * instead of setting up a fresh yyin. A bit of a hack ... */ static int yy_did_buffer_switch_on_eof; void yyrestart (FILE *input_file ); void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ); YY_BUFFER_STATE yy_create_buffer (FILE *file,int size ); void yy_delete_buffer (YY_BUFFER_STATE b ); void yy_flush_buffer (YY_BUFFER_STATE b ); void yypush_buffer_state (YY_BUFFER_STATE new_buffer ); void yypop_buffer_state (void ); static void yyensure_buffer_stack (void ); static void yy_load_buffer_state (void ); static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file ); #define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER ) YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size ); YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str ); YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,int len ); void *yyalloc (yy_size_t ); void *yyrealloc (void *,yy_size_t ); void yyfree (void * ); #define yy_new_buffer yy_create_buffer #define yy_set_interactive(is_interactive) \ { \ if ( ! YY_CURRENT_BUFFER ){ \ yyensure_buffer_stack (); \ YY_CURRENT_BUFFER_LVALUE = \ yy_create_buffer(yyin,YY_BUF_SIZE ); \ } \ YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ } #define yy_set_bol(at_bol) \ { \ if ( ! YY_CURRENT_BUFFER ){\ yyensure_buffer_stack (); \ YY_CURRENT_BUFFER_LVALUE = \ yy_create_buffer(yyin,YY_BUF_SIZE ); \ } \ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ } #define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) /* Begin user sect3 */ #define yywrap(n) 1 #define YY_SKIP_YYWRAP typedef unsigned char YY_CHAR; FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; typedef int yy_state_type; extern int yylineno; int yylineno = 1; extern char yytext[]; static yy_state_type yy_get_previous_state (void ); static yy_state_type yy_try_NUL_trans (yy_state_type current_state ); static int yy_get_next_buffer (void ); static void yy_fatal_error (yyconst char msg[] ); /* Done after the current pattern has been matched and before the * corresponding action - sets up yytext. */ #define YY_DO_BEFORE_ACTION \ (yytext_ptr) = yy_bp; \ yyleng = (size_t) (yy_cp - yy_bp); \ (yy_hold_char) = *yy_cp; \ *yy_cp = '\0'; \ if ( yyleng >= YYLMAX ) \ YY_FATAL_ERROR( "token too large, exceeds YYLMAX" ); \ yy_flex_strncpy( yytext, (yytext_ptr), yyleng + 1 ); \ (yy_c_buf_p) = yy_cp; #define YY_NUM_RULES 19 #define YY_END_OF_BUFFER 20 /* This struct is not used in this scanner, but its presence is necessary. */ struct yy_trans_info { flex_int32_t yy_verify; flex_int32_t yy_nxt; }; static yyconst flex_int16_t yy_acclist[94] = { 0, 20, 2, 19, 1, 2, 19, 3, 19, 18, 19, 17, 18, 19, 17, 19, 14, 18, 19, 18, 19, 18, 19, 15, 18, 19, 18, 19, 16, 18, 19, 10, 19, 9, 10, 19, 9, 19, 10, 19,16391, 10, 19, 10, 19, 10, 19,16390,16391, 10, 19, 16391, 1, 13, 11, 12, 11, 15, 15, 16, 16, 16, 8199,16391,16390,16391,16391, 8, 8, 8, 8198, 8199, 4, 8198, 8199, 5, 8198, 8199,16391,16391, 12, 12,16391,16391,16391, 8, 8,16391,16391, 8, 8, 8, 8, 8 } ; static yyconst flex_int16_t yy_accept[73] = { 0, 1, 1, 1, 1, 1, 1, 1, 2, 4, 7, 9, 11, 14, 16, 19, 21, 23, 26, 28, 31, 33, 36, 38, 41, 43, 45, 49, 52, 53, 54, 55, 56, 58, 58, 59, 60, 61, 62, 62, 63, 63, 63, 64, 66, 67, 68, 68, 69, 70, 70, 72, 75, 78, 79, 80, 81, 82, 83, 84, 85, 85, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 94 } ; static yyconst flex_int32_t yy_ec[256] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 4, 5, 6, 7, 8, 9, 1, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 1, 1, 1, 1, 1, 1, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } ; static yyconst flex_int32_t yy_meta[14] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } ; static yyconst flex_int16_t yy_base[73] = { 0, 0, 2, 5, 0, 18, 0, 63, 159, 59, 159, 159, 159, 159, 26, 49, 49, 29, 0, 32, 159, 159, 159, 44, 51, 59, 71, 74, 56, 159, 49, 77, 33, 0, 0, 0, 28, 0, 89, 159, 87, 28, 0, 0, 90, 98, 105, 108, 111, 123, 159, 159, 159, 116, 119, 23, 0, 0, 122, 125, 133, 25, 21, 0, 136, 139, 0, 142, 145, 20, 0, 159, 0 } ; static yyconst flex_int16_t yy_def[73] = { 0, 72, 72, 71, 3, 71, 5, 71, 71, 71, 71, 71, 71, 71, 71, 14, 14, 71, 14, 71, 71, 71, 71, 71, 71, 71, 71, 23, 71, 71, 14, 71, 30, 14, 17, 19, 19, 19, 71, 71, 71, 40, 23, 26, 23, 71, 71, 45, 45, 71, 71, 71, 71, 23, 23, 31, 31, 23, 23, 23, 71, 60, 48, 48, 23, 23, 45, 45, 45, 68, 68, 0, 71 } ; static yyconst flex_int16_t yy_nxt[173] = { 0, 8, 9, 10, 9, 10, 11, 12, 13, 12, 12, 14, 15, 12, 15, 16, 17, 18, 19, 20, 21, 22, 20, 20, 23, 24, 25, 24, 20, 26, 20, 27, 29, 69, 62, 60, 55, 30, 40, 31, 34, 36, 35, 36, 32, 37, 38, 39, 39, 39, 40, 40, 39, 40, 41, 71, 40, 42, 28, 33, 32, 28, 43, 71, 44, 45, 46, 71, 46, 71, 47, 71, 48, 49, 50, 51, 52, 40, 40, 50, 40, 41, 43, 40, 44, 53, 71, 54, 55, 71, 56, 38, 39, 57, 71, 71, 71, 71, 58, 71, 59, 53, 71, 54, 60, 60, 71, 60, 61, 71, 60, 45, 71, 71, 71, 71, 47, 71, 48, 47, 71, 48, 62, 71, 63, 49, 50, 53, 71, 53, 53, 71, 54, 58, 71, 59, 64, 71, 65, 66, 71, 71, 71, 71, 67, 71, 68, 64, 71, 64, 64, 71, 65, 67, 71, 68, 69, 71, 70, 7, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71 } ; static yyconst flex_int16_t yy_chk[173] = { 0, 72, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 14, 69, 62, 61, 55, 14, 41, 14, 17, 36, 17, 19, 32, 19, 23, 23, 23, 23, 23, 23, 23, 23, 23, 30, 23, 24, 28, 16, 15, 9, 24, 7, 24, 25, 25, 0, 25, 0, 25, 0, 25, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 0, 27, 31, 0, 31, 38, 38, 40, 0, 0, 0, 0, 40, 0, 40, 44, 0, 44, 45, 45, 0, 45, 45, 0, 45, 46, 0, 0, 0, 0, 46, 0, 46, 47, 0, 47, 48, 0, 48, 49, 49, 53, 0, 53, 54, 0, 54, 58, 0, 58, 59, 0, 59, 60, 0, 0, 0, 0, 60, 0, 60, 64, 0, 64, 65, 0, 65, 67, 0, 67, 68, 0, 68, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71 } ; extern int yy_flex_debug; int yy_flex_debug = 0; static yy_state_type *yy_state_buf=0, *yy_state_ptr=0; static char *yy_full_match; static int yy_lp; static int yy_looking_for_trail_begin = 0; static int yy_full_lp; static int *yy_full_state; #define YY_TRAILING_MASK 0x2000 #define YY_TRAILING_HEAD_MASK 0x4000 #define REJECT \ { \ *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */ \ yy_cp = (yy_full_match); /* restore poss. backed-over text */ \ (yy_lp) = yy_full_lp; /* restore orig. accepting pos. */ \ (yy_state_ptr) = yy_full_state; /* restore orig. state */ \ yy_current_state = *(yy_state_ptr); /* restore curr. state */ \ ++(yy_lp); \ goto find_rule; \ } #define yymore() yymore_used_but_not_detected #define YY_MORE_ADJ 0 #define YY_RESTORE_YY_MORE_OFFSET #ifndef YYLMAX #define YYLMAX 8192 #endif char yytext[YYLMAX]; char *yytext_ptr; #line 1 "mix_eval_scanner.l" /* -*-c-*- ------------------ mix_eval_scanner.l : * scanner used by mix_eval_t * ------------------------------------------------------------------ * $Id: mix_eval_scanner.l,v 1.4 2005/09/20 19:43:13 jao Exp $ * ------------------------------------------------------------------ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * */ #line 25 "mix_eval_scanner.l" #include #include "mix.h" #include "xmix_eval.h" #define YY_DECL \ mix_eval_result_t mix_eval_expr (mix_eval_data_ *data) /* keep track of current position in buffer */ #define YY_USER_ACTION yypos += yyleng; #define RETURN_STATE(err) \ do { \ done = TRUE; \ state = err; \ BEGIN (INITIAL); \ } while (FALSE) #define CLEAN_UP() \ do { \ yy_delete_buffer (buffer); \ 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); /* { */ /* 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; */ /* } */ #line 602 "mix_eval_scanner.c" #define INITIAL 0 #define EVAL 1 #define WEVAL 2 #ifndef YY_NO_UNISTD_H /* Special case for "unistd.h", since it is non-ANSI. We include it way * down here because we want the user's section 1 to have been scanned first. * The user has a chance to override it with an option. */ #include #endif #ifndef YY_EXTRA_TYPE #define YY_EXTRA_TYPE void * #endif /* Macros after this point can all be overridden by user definitions in * section 1. */ #ifndef YY_SKIP_YYWRAP #ifdef __cplusplus extern "C" int yywrap (void ); #else extern int yywrap (void ); #endif #endif static void yyunput (int c,char *buf_ptr ); #ifndef yytext_ptr static void yy_flex_strncpy (char *,yyconst char *,int ); #endif #ifdef YY_NEED_STRLEN static int yy_flex_strlen (yyconst char * ); #endif #ifndef YY_NO_INPUT #ifdef __cplusplus static int yyinput (void ); #else static int input (void ); #endif #endif static int yy_start_stack_ptr = 0; static int yy_start_stack_depth = 0; static int *yy_start_stack = 0; static void yy_push_state (int new_state ); static void yy_pop_state (void ); /* Amount of stuff to slurp up with each read. */ #ifndef YY_READ_BUF_SIZE #define YY_READ_BUF_SIZE 8192 #endif /* Copy whatever the last rule matched to the standard output. */ #ifndef ECHO /* This used to be an fputs(), but since the string might contain NUL's, * we now use fwrite(). */ #define ECHO (void) fwrite( yytext, yyleng, 1, yyout ) #endif /* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, * is returned in "result". */ #ifndef YY_INPUT #define YY_INPUT(buf,result,max_size) \ if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ { \ int c = '*'; \ size_t n; \ for ( n = 0; n < max_size && \ (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ buf[n] = (char) c; \ if ( c == '\n' ) \ buf[n++] = (char) c; \ if ( c == EOF && ferror( yyin ) ) \ YY_FATAL_ERROR( "input in flex scanner failed" ); \ result = n; \ } \ else \ { \ errno=0; \ while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \ { \ if( errno != EINTR) \ { \ YY_FATAL_ERROR( "input in flex scanner failed" ); \ break; \ } \ errno=0; \ clearerr(yyin); \ } \ }\ \ #endif /* No semi-colon after return; correct usage is to write "yyterminate();" - * we don't want an extra ';' after the "return" because that will cause * some compilers to complain about unreachable statements. */ #ifndef yyterminate #define yyterminate() return YY_NULL #endif /* Number of entries by which start-condition stack grows. */ #ifndef YY_START_STACK_INCR #define YY_START_STACK_INCR 25 #endif /* Report a fatal error. */ #ifndef YY_FATAL_ERROR #define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) #endif /* end tables serialization structures and prototypes */ /* Default declaration of generated scanner - a define so the user can * easily add parameters. */ #ifndef YY_DECL #define YY_DECL_IS_OURS 1 extern int yylex (void); #define YY_DECL int yylex (void) #endif /* !YY_DECL */ /* Code executed at the beginning of each rule, after yytext and yyleng * have been set up. */ #ifndef YY_USER_ACTION #define YY_USER_ACTION #endif /* Code executed at the end of each rule. */ #ifndef YY_BREAK #define YY_BREAK break; #endif #define YY_RULE_SETUP \ YY_USER_ACTION /** The main scanner function which does all the work. */ YY_DECL { register yy_state_type yy_current_state; register char *yy_cp, *yy_bp; register int yy_act; #line 96 "mix_eval_scanner.l" YY_BUFFER_STATE buffer; mix_word_t expr_val = MIX_WORD_ZERO, wexpr_val = MIX_WORD_ZERO; mix_word_t wexpr_val_tmp = MIX_WORD_ZERO; mix_eval_result_t state = MIX_EVAL_OK; gchar *expr_cp; gint yypos = -22; /* to account for padding */ gboolean is_fp = FALSE, done = FALSE; g_assert (data != NULL && data->expr != NULL); /* make room enough to unput computed values */ expr_cp = g_strdup_printf ("%-20s%s"," ", data->expr); buffer = yy_scan_string (expr_cp); data->errpos = -1; #line 782 "mix_eval_scanner.c" if ( (yy_init) ) { (yy_init) = 0; #ifdef YY_USER_INIT YY_USER_INIT; #endif if ( ! (yy_state_buf) ) (yy_state_buf) = (yy_state_type *)yyalloc(YY_BUF_SIZE + 2 ); if ( ! (yy_start) ) (yy_start) = 1; /* first start state */ if ( ! yyin ) yyin = stdin; if ( ! yyout ) yyout = stdout; if ( ! YY_CURRENT_BUFFER ) { yyensure_buffer_stack (); YY_CURRENT_BUFFER_LVALUE = yy_create_buffer(yyin,YY_BUF_SIZE ); } yy_load_buffer_state( ); } while ( 1 ) /* loops until end-of-file is reached */ { yy_cp = (yy_c_buf_p); /* Support of yytext. */ *yy_cp = (yy_hold_char); /* yy_bp points to the position in yy_ch_buf of the start of * the current run. */ yy_bp = yy_cp; yy_current_state = (yy_start); (yy_state_ptr) = (yy_state_buf); *(yy_state_ptr)++ = yy_current_state; yy_match: do { register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)]; while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) { yy_current_state = (int) yy_def[yy_current_state]; if ( yy_current_state >= 72 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; *(yy_state_ptr)++ = yy_current_state; ++yy_cp; } while ( yy_base[yy_current_state] != 159 ); yy_find_action: yy_current_state = *--(yy_state_ptr); (yy_lp) = yy_accept[yy_current_state]; find_rule: /* we branch to this label when backing up */ for ( ; ; ) /* until we find what rule we matched */ { if ( (yy_lp) && (yy_lp) < yy_accept[yy_current_state + 1] ) { yy_act = yy_acclist[(yy_lp)]; if ( yy_act & YY_TRAILING_HEAD_MASK || yy_looking_for_trail_begin ) { if ( yy_act == yy_looking_for_trail_begin ) { yy_looking_for_trail_begin = 0; yy_act &= ~YY_TRAILING_HEAD_MASK; break; } } else if ( yy_act & YY_TRAILING_MASK ) { yy_looking_for_trail_begin = yy_act & ~YY_TRAILING_MASK; yy_looking_for_trail_begin |= YY_TRAILING_HEAD_MASK; } else { (yy_full_match) = yy_cp; yy_full_state = (yy_state_ptr); yy_full_lp = (yy_lp); break; } ++(yy_lp); goto find_rule; } --yy_cp; yy_current_state = *--(yy_state_ptr); (yy_lp) = yy_accept[yy_current_state]; } YY_DO_BEFORE_ACTION; do_action: /* This label is used only to access EOF actions. */ switch ( yy_act ) { /* beginning of action switch */ case YY_STATE_EOF(INITIAL): case YY_STATE_EOF(EVAL): case YY_STATE_EOF(WEVAL): #line 114 "mix_eval_scanner.l" { CLEAN_UP (); return MIX_EVAL_INTERN; } YY_BREAK case 1: YY_RULE_SETUP #line 120 "mix_eval_scanner.l" /* eat whitespace */ YY_BREAK case 2: YY_RULE_SETUP #line 121 "mix_eval_scanner.l" { if (!done && state == MIX_EVAL_OK) { yypos -= yyleng; yyless (0); yy_push_state (WEVAL); } else { CLEAN_UP (); if (state == MIX_EVAL_OK) return (MIX_EVAL_SYNTAX); data->errpos = yypos; return state; } } YY_BREAK case 3: /* rule 3 can match eol */ YY_RULE_SETUP #line 132 "mix_eval_scanner.l" { CLEAN_UP(); if (state == MIX_EVAL_OK) data->value = wexpr_val; else data->errpos = yypos; return state; } YY_BREAK case 4: YY_RULE_SETUP #line 143 "mix_eval_scanner.l" { is_fp = TRUE; wexpr_val_tmp = mix_word_new (atol (yytext)); } YY_BREAK case 5: YY_RULE_SETUP #line 147 "mix_eval_scanner.l" { glong val = atol (yytext); if ( !is_fp ) { RETURN_STATE (MIX_EVAL_MIS_PAREN); } 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); } } YY_BREAK case 6: /* rule 6 can match eol */ YY_RULE_SETUP #line 161 "mix_eval_scanner.l" { wexpr_val = mix_word_new (atol (yytext)); } YY_BREAK case 7: /* rule 7 can match eol */ YY_RULE_SETUP #line 164 "mix_eval_scanner.l" { if (yytext[0] != '*') { yypos -= yyleng; yyless (0); } else { yypos -= yyleng - 1; expr_val = mix_short_to_word_fast (data->loc); yyless (1); } yy_push_state (EVAL); } YY_BREAK case 8: *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */ (yy_c_buf_p) = yy_cp = yy_bp + 1; YY_DO_BEFORE_ACTION; /* set up yytext again */ YY_RULE_SETUP #line 178 "mix_eval_scanner.l" /* eat comma if followed by expression */ YY_BREAK case 9: /* rule 9 can match eol */ YY_RULE_SETUP #line 179 "mix_eval_scanner.l" { /* ok if not inside an f-part */ if ( is_fp ) { RETURN_STATE (MIX_EVAL_MIS_PAREN); } unput (yytext[yyleng-1]); --yypos; done = TRUE; yy_pop_state (); } YY_BREAK case 10: YY_RULE_SETUP #line 187 "mix_eval_scanner.l" RETURN_STATE (MIX_EVAL_SYNTAX); YY_BREAK case 11: YY_RULE_SETUP #line 191 "mix_eval_scanner.l" { const gchar *s = ( yytext[1] == '/' ) ? yytext+2 : yytext+1; mix_word_t value = mix_word_new (atol (s)); expr_val = eval_binop_ (yytext, expr_val, value); } YY_BREAK case 12: YY_RULE_SETUP #line 196 "mix_eval_scanner.l" { const gchar *s = ( yytext[1] == '/' ) ? yytext+2 : yytext+1; if ( !mix_symbol_table_is_defined (data->table, s) ) { RETURN_STATE (MIX_EVAL_UNDEF_SYM); } expr_val = eval_binop_ (yytext, expr_val, mix_symbol_table_value (data->table, s)); } YY_BREAK case 13: YY_RULE_SETUP #line 204 "mix_eval_scanner.l" { expr_val = eval_binop_ (yytext, expr_val, mix_short_to_word_fast (data->loc)); } YY_BREAK case 14: YY_RULE_SETUP #line 208 "mix_eval_scanner.l" yypos -= unput_word_ (mix_short_to_word_fast (data->loc)); YY_BREAK case 15: YY_RULE_SETUP #line 209 "mix_eval_scanner.l" expr_val = mix_word_new (atol (yytext)); YY_BREAK case 16: YY_RULE_SETUP #line 210 "mix_eval_scanner.l" { if ( !mix_symbol_table_is_defined (data->table, yytext) ) { RETURN_STATE (MIX_EVAL_UNDEF_SYM); } expr_val = mix_symbol_table_value (data->table, yytext); } YY_BREAK case 17: /* rule 17 can match eol */ YY_RULE_SETUP #line 216 "mix_eval_scanner.l" { unput (yytext[0]); --yypos; yypos -= unput_word_ (expr_val); yy_pop_state (); } YY_BREAK case 18: YY_RULE_SETUP #line 222 "mix_eval_scanner.l" RETURN_STATE (MIX_EVAL_SYNTAX); YY_BREAK case 19: YY_RULE_SETUP #line 226 "mix_eval_scanner.l" ECHO; YY_BREAK #line 1087 "mix_eval_scanner.c" case YY_END_OF_BUFFER: { /* Amount of text matched not including the EOB char. */ int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1; /* Undo the effects of YY_DO_BEFORE_ACTION. */ *yy_cp = (yy_hold_char); YY_RESTORE_YY_MORE_OFFSET if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) { /* We're scanning a new file or input source. It's * possible that this happened because the user * just pointed yyin at a new source and called * yylex(). If so, then we have to assure * consistency between YY_CURRENT_BUFFER and our * globals. Here is the right place to do so, because * this is the first action (other than possibly a * back-up) that will match for the new input source. */ (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; } /* Note that here we test for yy_c_buf_p "<=" to the position * of the first EOB in the buffer, since yy_c_buf_p will * already have been incremented past the NUL character * (since all states make transitions on EOB to the * end-of-buffer state). Contrast this with the test * in input(). */ if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) { /* This was really a NUL. */ yy_state_type yy_next_state; (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; yy_current_state = yy_get_previous_state( ); /* Okay, we're now positioned to make the NUL * transition. We couldn't have * yy_get_previous_state() go ahead and do it * for us because it doesn't know how to deal * with the possibility of jamming (and we don't * want to build jamming into it because then it * will run more slowly). */ yy_next_state = yy_try_NUL_trans( yy_current_state ); yy_bp = (yytext_ptr) + YY_MORE_ADJ; if ( yy_next_state ) { /* Consume the NUL. */ yy_cp = ++(yy_c_buf_p); yy_current_state = yy_next_state; goto yy_match; } else { yy_cp = (yy_c_buf_p); goto yy_find_action; } } else switch ( yy_get_next_buffer( ) ) { case EOB_ACT_END_OF_FILE: { (yy_did_buffer_switch_on_eof) = 0; if ( yywrap( ) ) { /* Note: because we've taken care in * yy_get_next_buffer() to have set up * yytext, we can now set up * yy_c_buf_p so that if some total * hoser (like flex itself) wants to * call the scanner after we return the * YY_NULL, it'll still work - another * YY_NULL will get returned. */ (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ; yy_act = YY_STATE_EOF(YY_START); goto do_action; } else { if ( ! (yy_did_buffer_switch_on_eof) ) YY_NEW_FILE; } break; } case EOB_ACT_CONTINUE_SCAN: (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; yy_current_state = yy_get_previous_state( ); yy_cp = (yy_c_buf_p); yy_bp = (yytext_ptr) + YY_MORE_ADJ; goto yy_match; case EOB_ACT_LAST_MATCH: (yy_c_buf_p) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)]; yy_current_state = yy_get_previous_state( ); yy_cp = (yy_c_buf_p); yy_bp = (yytext_ptr) + YY_MORE_ADJ; goto yy_find_action; } break; } default: YY_FATAL_ERROR( "fatal flex scanner internal error--no action found" ); } /* end of action switch */ } /* end of scanning one token */ } /* end of yylex */ /* yy_get_next_buffer - try to read in a new buffer * * Returns a code representing an action: * EOB_ACT_LAST_MATCH - * EOB_ACT_CONTINUE_SCAN - continue scanning from current position * EOB_ACT_END_OF_FILE - end of file */ static int yy_get_next_buffer (void) { register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; register char *source = (yytext_ptr); register int number_to_move, i; int ret_val; if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) YY_FATAL_ERROR( "fatal flex scanner internal error--end of buffer missed" ); if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) { /* Don't try to fill the buffer, so this is an EOF. */ if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) { /* We matched a single character, the EOB, so * treat this as a final EOF. */ return EOB_ACT_END_OF_FILE; } else { /* We matched some text prior to the EOB, first * process it. */ return EOB_ACT_LAST_MATCH; } } /* Try to read more data. */ /* First move last chars to start of buffer. */ number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1; for ( i = 0; i < number_to_move; ++i ) *(dest++) = *(source++); if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) /* don't do the read, it's not guaranteed to return an EOF, * just force an EOF */ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; else { size_t num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; while ( num_to_read <= 0 ) { /* Not enough room in the buffer - grow it. */ YY_FATAL_ERROR( "input buffer overflow, can't enlarge buffer because scanner uses REJECT" ); } if ( num_to_read > YY_READ_BUF_SIZE ) num_to_read = YY_READ_BUF_SIZE; /* Read in more data. */ YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), (yy_n_chars), num_to_read ); YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); } if ( (yy_n_chars) == 0 ) { if ( number_to_move == YY_MORE_ADJ ) { ret_val = EOB_ACT_END_OF_FILE; yyrestart(yyin ); } else { ret_val = EOB_ACT_LAST_MATCH; YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_EOF_PENDING; } } else ret_val = EOB_ACT_CONTINUE_SCAN; (yy_n_chars) += number_to_move; YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR; YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR; (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; return ret_val; } /* yy_get_previous_state - get the state just before the EOB char was reached */ static yy_state_type yy_get_previous_state (void) { register yy_state_type yy_current_state; register char *yy_cp; yy_current_state = (yy_start); (yy_state_ptr) = (yy_state_buf); *(yy_state_ptr)++ = yy_current_state; for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp ) { register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) { yy_current_state = (int) yy_def[yy_current_state]; if ( yy_current_state >= 72 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; *(yy_state_ptr)++ = yy_current_state; } return yy_current_state; } /* yy_try_NUL_trans - try to make a transition on the NUL character * * synopsis * next_state = yy_try_NUL_trans( current_state ); */ static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state ) { register int yy_is_jam; register YY_CHAR yy_c = 1; while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) { yy_current_state = (int) yy_def[yy_current_state]; if ( yy_current_state >= 72 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; yy_is_jam = (yy_current_state == 71); if ( ! yy_is_jam ) *(yy_state_ptr)++ = yy_current_state; return yy_is_jam ? 0 : yy_current_state; } static void yyunput (int c, register char * yy_bp ) { register char *yy_cp; yy_cp = (yy_c_buf_p); /* undo effects of setting up yytext */ *yy_cp = (yy_hold_char); if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) { /* need to shift things up to make room */ /* +2 for EOB chars. */ register int number_to_move = (yy_n_chars) + 2; register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[ YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2]; register char *source = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]; while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) *--dest = *--source; yy_cp += (int) (dest - source); yy_bp += (int) (dest - source); YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size; if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) YY_FATAL_ERROR( "flex scanner push-back overflow" ); } *--yy_cp = (char) c; (yytext_ptr) = yy_bp; (yy_hold_char) = *yy_cp; (yy_c_buf_p) = yy_cp; } #ifndef YY_NO_INPUT #ifdef __cplusplus static int yyinput (void) #else static int input (void) #endif { int c; *(yy_c_buf_p) = (yy_hold_char); if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR ) { /* yy_c_buf_p now points to the character we want to return. * If this occurs *before* the EOB characters, then it's a * valid NUL; if not, then we've hit the end of the buffer. */ if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) /* This was really a NUL. */ *(yy_c_buf_p) = '\0'; else { /* need more input */ int offset = (yy_c_buf_p) - (yytext_ptr); ++(yy_c_buf_p); switch ( yy_get_next_buffer( ) ) { case EOB_ACT_LAST_MATCH: /* This happens because yy_g_n_b() * sees that we've accumulated a * token and flags that we need to * try matching the token before * proceeding. But for input(), * there's no matching to consider. * So convert the EOB_ACT_LAST_MATCH * to EOB_ACT_END_OF_FILE. */ /* Reset buffer status. */ yyrestart(yyin ); /*FALLTHROUGH*/ case EOB_ACT_END_OF_FILE: { if ( yywrap( ) ) return EOF; if ( ! (yy_did_buffer_switch_on_eof) ) YY_NEW_FILE; #ifdef __cplusplus return yyinput(); #else return input(); #endif } case EOB_ACT_CONTINUE_SCAN: (yy_c_buf_p) = (yytext_ptr) + offset; break; } } } c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */ *(yy_c_buf_p) = '\0'; /* preserve yytext */ (yy_hold_char) = *++(yy_c_buf_p); return c; } #endif /* ifndef YY_NO_INPUT */ /** Immediately switch to a different input stream. * @param input_file A readable stream. * * @note This function does not reset the start condition to @c INITIAL . */ void yyrestart (FILE * input_file ) { if ( ! YY_CURRENT_BUFFER ){ yyensure_buffer_stack (); YY_CURRENT_BUFFER_LVALUE = yy_create_buffer(yyin,YY_BUF_SIZE ); } yy_init_buffer(YY_CURRENT_BUFFER,input_file ); yy_load_buffer_state( ); } /** Switch to a different input buffer. * @param new_buffer The new input buffer. * */ void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ) { /* TODO. We should be able to replace this entire function body * with * yypop_buffer_state(); * yypush_buffer_state(new_buffer); */ yyensure_buffer_stack (); if ( YY_CURRENT_BUFFER == new_buffer ) return; if ( YY_CURRENT_BUFFER ) { /* Flush out information for old buffer. */ *(yy_c_buf_p) = (yy_hold_char); YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); } YY_CURRENT_BUFFER_LVALUE = new_buffer; yy_load_buffer_state( ); /* We don't actually know whether we did this switch during * EOF (yywrap()) processing, but the only time this flag * is looked at is after yywrap() is called, so it's safe * to go ahead and always set it. */ (yy_did_buffer_switch_on_eof) = 1; } static void yy_load_buffer_state (void) { (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; (yy_hold_char) = *(yy_c_buf_p); } /** Allocate and initialize an input buffer state. * @param file A readable stream. * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. * * @return the allocated buffer state. */ YY_BUFFER_STATE yy_create_buffer (FILE * file, int size ) { YY_BUFFER_STATE b; b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); if ( ! b ) YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); b->yy_buf_size = size; /* yy_ch_buf has to be 2 characters longer than the size given because * we need to put in 2 end-of-buffer characters. */ b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2 ); if ( ! b->yy_ch_buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); b->yy_is_our_buffer = 1; yy_init_buffer(b,file ); return b; } /** Destroy the buffer. * @param b a buffer created with yy_create_buffer() * */ void yy_delete_buffer (YY_BUFFER_STATE b ) { if ( ! b ) return; if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; if ( b->yy_is_our_buffer ) yyfree((void *) b->yy_ch_buf ); yyfree((void *) b ); } #ifndef __cplusplus extern int isatty (int ); #endif /* __cplusplus */ /* Initializes or reinitializes a buffer. * This function is sometimes called more than once on the same buffer, * such as during a yyrestart() or at EOF. */ static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file ) { int oerrno = errno; yy_flush_buffer(b ); b->yy_input_file = file; b->yy_fill_buffer = 1; /* If b is the current buffer, then yy_init_buffer was _probably_ * called from yyrestart() or through yy_get_next_buffer. * In that case, we don't want to reset the lineno or column. */ if (b != YY_CURRENT_BUFFER){ b->yy_bs_lineno = 1; b->yy_bs_column = 0; } b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; errno = oerrno; } /** Discard all buffered characters. On the next scan, YY_INPUT will be called. * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. * */ void yy_flush_buffer (YY_BUFFER_STATE b ) { if ( ! b ) return; b->yy_n_chars = 0; /* We always need two end-of-buffer characters. The first causes * a transition to the end-of-buffer state. The second causes * a jam in that state. */ b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; b->yy_buf_pos = &b->yy_ch_buf[0]; b->yy_at_bol = 1; b->yy_buffer_status = YY_BUFFER_NEW; if ( b == YY_CURRENT_BUFFER ) yy_load_buffer_state( ); } /** Pushes the new state onto the stack. The new state becomes * the current state. This function will allocate the stack * if necessary. * @param new_buffer The new state. * */ void yypush_buffer_state (YY_BUFFER_STATE new_buffer ) { if (new_buffer == NULL) return; yyensure_buffer_stack(); /* This block is copied from yy_switch_to_buffer. */ if ( YY_CURRENT_BUFFER ) { /* Flush out information for old buffer. */ *(yy_c_buf_p) = (yy_hold_char); YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); } /* Only push if top exists. Otherwise, replace top. */ if (YY_CURRENT_BUFFER) (yy_buffer_stack_top)++; YY_CURRENT_BUFFER_LVALUE = new_buffer; /* copied from yy_switch_to_buffer. */ yy_load_buffer_state( ); (yy_did_buffer_switch_on_eof) = 1; } /** Removes and deletes the top of the stack, if present. * The next element becomes the new top. * */ void yypop_buffer_state (void) { if (!YY_CURRENT_BUFFER) return; yy_delete_buffer(YY_CURRENT_BUFFER ); YY_CURRENT_BUFFER_LVALUE = NULL; if ((yy_buffer_stack_top) > 0) --(yy_buffer_stack_top); if (YY_CURRENT_BUFFER) { yy_load_buffer_state( ); (yy_did_buffer_switch_on_eof) = 1; } } /* Allocates the stack if it does not exist. * Guarantees space for at least one push. */ static void yyensure_buffer_stack (void) { int num_to_alloc; if (!(yy_buffer_stack)) { /* First allocation is just for 2 elements, since we don't know if this * scanner will even need a stack. We use 2 instead of 1 to avoid an * immediate realloc on the next call. */ num_to_alloc = 1; (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc (num_to_alloc * sizeof(struct yy_buffer_state*) ); memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*)); (yy_buffer_stack_max) = num_to_alloc; (yy_buffer_stack_top) = 0; return; } if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){ /* Increase the buffer to prepare for a possible push. */ int grow_size = 8 /* arbitrary grow size */; num_to_alloc = (yy_buffer_stack_max) + grow_size; (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc ((yy_buffer_stack), num_to_alloc * sizeof(struct yy_buffer_state*) ); /* zero only the new slots.*/ memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*)); (yy_buffer_stack_max) = num_to_alloc; } } /** Setup the input buffer state to scan directly from a user-specified character buffer. * @param base the character buffer * @param size the size in bytes of the character buffer * * @return the newly allocated buffer state object. */ YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size ) { YY_BUFFER_STATE b; if ( size < 2 || base[size-2] != YY_END_OF_BUFFER_CHAR || base[size-1] != YY_END_OF_BUFFER_CHAR ) /* They forgot to leave room for the EOB's. */ return 0; b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); if ( ! b ) YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ b->yy_buf_pos = b->yy_ch_buf = base; b->yy_is_our_buffer = 0; b->yy_input_file = 0; b->yy_n_chars = b->yy_buf_size; b->yy_is_interactive = 0; b->yy_at_bol = 1; b->yy_fill_buffer = 0; b->yy_buffer_status = YY_BUFFER_NEW; yy_switch_to_buffer(b ); return b; } /** Setup the input buffer state to scan a string. The next call to yylex() will * scan from a @e copy of @a str. * @param str a NUL-terminated string to scan * @param yy_str a NUL-terminated string to scan * * @return the newly allocated buffer state object. * @note If you want to scan bytes that may contain NUL values, then use * yy_scan_bytes() instead. */ YY_BUFFER_STATE yy_scan_string (yyconst char * yy_str ) { return yy_scan_bytes(yy_str,strlen(yy_str) ); } /** Setup the input buffer state to scan the given bytes. The next call to yylex() will * scan from a @e copy of @a bytes. * @param bytes the byte buffer to scan * @param len the number of bytes in the buffer pointed to by @a bytes. * * @return the newly allocated buffer state object. */ YY_BUFFER_STATE yy_scan_bytes (yyconst char * bytes, int len ) { YY_BUFFER_STATE b; char *buf; yy_size_t n; int i; /* Get memory for full buffer, including space for trailing EOB's. */ n = len + 2; buf = (char *) yyalloc(n ); if ( ! buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); for ( i = 0; i < len; ++i ) buf[i] = bytes[i]; buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR; b = yy_scan_buffer(buf,n ); if ( ! b ) YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); /* It's okay to grow etc. this buffer, and we should throw it * away when we're done. */ b->yy_is_our_buffer = 1; return b; } static void yy_push_state (int new_state ) { if ( (yy_start_stack_ptr) >= (yy_start_stack_depth) ) { yy_size_t new_size; (yy_start_stack_depth) += YY_START_STACK_INCR; new_size = (yy_start_stack_depth) * sizeof( int ); if ( ! (yy_start_stack) ) (yy_start_stack) = (int *) yyalloc(new_size ); else (yy_start_stack) = (int *) yyrealloc((void *) (yy_start_stack),new_size ); if ( ! (yy_start_stack) ) YY_FATAL_ERROR( "out of memory expanding start-condition stack" ); } (yy_start_stack)[(yy_start_stack_ptr)++] = YY_START; BEGIN(new_state); } static void yy_pop_state (void) { if ( --(yy_start_stack_ptr) < 0 ) YY_FATAL_ERROR( "start-condition stack underflow" ); BEGIN((yy_start_stack)[(yy_start_stack_ptr)]); } #ifndef YY_EXIT_FAILURE #define YY_EXIT_FAILURE 2 #endif static void yy_fatal_error (yyconst char* msg ) { (void) fprintf( stderr, "%s\n", msg ); exit( YY_EXIT_FAILURE ); } /* Redefine yyless() so it works in section 3 code. */ #undef yyless #define yyless(n) \ do \ { \ /* Undo effects of setting up yytext. */ \ int yyless_macro_arg = (n); \ YY_LESS_LINENO(yyless_macro_arg);\ yytext[yyleng] = (yy_hold_char); \ (yy_c_buf_p) = yytext + yyless_macro_arg; \ (yy_hold_char) = *(yy_c_buf_p); \ *(yy_c_buf_p) = '\0'; \ yyleng = yyless_macro_arg; \ } \ while ( 0 ) /* Accessor methods (get/set functions) to struct members. */ /** Get the current line number. * */ int yyget_lineno (void) { return yylineno; } /** Get the input stream. * */ FILE *yyget_in (void) { return yyin; } /** Get the output stream. * */ FILE *yyget_out (void) { return yyout; } /** Get the length of the current token. * */ int yyget_leng (void) { return yyleng; } /** Get the current token. * */ char *yyget_text (void) { return yytext; } /** Set the current line number. * @param line_number * */ void yyset_lineno (int line_number ) { yylineno = line_number; } /** Set the input stream. This does not discard the current * input buffer. * @param in_str A readable stream. * * @see yy_switch_to_buffer */ void yyset_in (FILE * in_str ) { yyin = in_str ; } void yyset_out (FILE * out_str ) { yyout = out_str ; } int yyget_debug (void) { return yy_flex_debug; } void yyset_debug (int bdebug ) { yy_flex_debug = bdebug ; } /* yylex_destroy is for both reentrant and non-reentrant scanners. */ int yylex_destroy (void) { /* Pop the buffer stack, destroying each element. */ while(YY_CURRENT_BUFFER){ yy_delete_buffer(YY_CURRENT_BUFFER ); YY_CURRENT_BUFFER_LVALUE = NULL; yypop_buffer_state(); } /* Destroy the stack itself. */ yyfree((yy_buffer_stack) ); (yy_buffer_stack) = NULL; /* Destroy the start condition stack. */ yyfree((yy_start_stack) ); (yy_start_stack) = NULL; yyfree ( (yy_state_buf) ); return 0; } /* * Internal utility routines. */ #ifndef yytext_ptr static void yy_flex_strncpy (char* s1, yyconst char * s2, int n ) { register int i; for ( i = 0; i < n; ++i ) s1[i] = s2[i]; } #endif #ifdef YY_NEED_STRLEN static int yy_flex_strlen (yyconst char * s ) { register int n; for ( n = 0; s[n]; ++n ) ; return n; } #endif void *yyalloc (yy_size_t size ) { return (void *) malloc( size ); } void *yyrealloc (void * ptr, yy_size_t size ) { /* The cast to (char *) in the following accommodates both * implementations that use char* generic pointers, and those * that use void* generic pointers. It works with the latter * because both ANSI C and C++ allow castless assignment from * any pointer type to void*, and deal with argument conversions * as though doing an assignment. */ return (void *) realloc( (char *) ptr, size ); } void yyfree (void * ptr ) { free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ } #define YYTABLES_NAME "yytables" #undef YY_NEW_FILE #undef YY_FLUSH_BUFFER #undef yy_set_bol #undef yy_new_buffer #undef yy_set_interactive #undef yytext_ptr #undef YY_DO_BEFORE_ACTION #ifdef YY_DECL_IS_OURS #undef YY_DECL_IS_OURS #undef YY_DECL #endif #line 226 "mix_eval_scanner.l" static mix_word_t 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); break; case '-': result = mix_word_sub (x,y); break; case '*': mix_word_mul (x, y, NULL, &result); break; case ':': { mix_word_t a; mix_word_mul (x, 8, NULL, &a); result = mix_word_add (a, y); break; } case '/': if ( strlen (op) > 1 && op[1] == '/' ) { mix_word_div (x,MIX_WORD_ZERO,y, &result, NULL); } else { mix_word_div (MIX_WORD_ZERO, x, y, &result, NULL); } break; default: g_assert_not_reached (); } 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)); result = strlen (value); for (k = result - 1; k >= 0; --k) unput (value[k]); g_free (value); return result; }