/* A lexical scanner generated by flex */ /* Scanner skeleton version: * $Header: /home/daffy/u0/vern/flex/RCS/flex.skl,v 2.91 96/09/10 16:58:48 vern Exp $ */ #define FLEX_SCANNER #define YY_FLEX_MAJOR_VERSION 2 #define YY_FLEX_MINOR_VERSION 5 #include #include /* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */ #ifdef c_plusplus #ifndef __cplusplus #define __cplusplus #endif #endif #ifdef __cplusplus #include /* Use prototypes in function declarations. */ #define YY_USE_PROTOS /* The "const" storage-class-modifier is valid. */ #define YY_USE_CONST #else /* ! __cplusplus */ #if __STDC__ #define YY_USE_PROTOS #define YY_USE_CONST #endif /* __STDC__ */ #endif /* ! __cplusplus */ #ifdef __TURBOC__ #pragma warn -rch #pragma warn -use #include #include #define YY_USE_CONST #define YY_USE_PROTOS #endif #ifdef YY_USE_CONST #define yyconst const #else #define yyconst #endif #ifdef YY_USE_PROTOS #define YY_PROTO(proto) proto #else #define YY_PROTO(proto) () #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. */ #define YY_BUF_SIZE 16384 typedef struct yy_buffer_state *YY_BUFFER_STATE; 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 /* The funky do-while in the following #define is used to turn the definition * int a single C statement (which needs a semi-colon terminator). This * avoids problems with code like: * * if ( condition_holds ) * yyless( 5 ); * else * do_something_else(); * * Prior to using the do-while the compiler would get upset at the * "else" because it interpreted the "if" statement as being all * done when it reached the ';' after the yyless() call. */ /* Return all but the first 'n' matched characters back to the input stream. */ #define yyless(n) \ do \ { \ /* Undo effects of setting up yytext. */ \ *yy_cp = yy_hold_char; \ YY_RESTORE_YY_MORE_OFFSET \ yy_c_buf_p = yy_cp = yy_bp + n - 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). */ typedef unsigned int yy_size_t; 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; /* 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 }; static YY_BUFFER_STATE yy_current_buffer = 0; /* 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". */ #define YY_CURRENT_BUFFER yy_current_buffer /* 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 YY_PROTO(( FILE *input_file )); void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer )); void yy_load_buffer_state YY_PROTO(( void )); YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size )); void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b )); void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file )); void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b )); #define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer ) YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size )); YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str )); YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len )); static void *yy_flex_alloc YY_PROTO(( yy_size_t )); static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t )); static void yy_flex_free YY_PROTO(( void * )); #define yy_new_buffer yy_create_buffer #define yy_set_interactive(is_interactive) \ { \ if ( ! yy_current_buffer ) \ yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ yy_current_buffer->yy_is_interactive = is_interactive; \ } #define yy_set_bol(at_bol) \ { \ if ( ! yy_current_buffer ) \ yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ yy_current_buffer->yy_at_bol = at_bol; \ } #define YY_AT_BOL() (yy_current_buffer->yy_at_bol) typedef unsigned char YY_CHAR; FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; typedef int yy_state_type; extern char *yytext; #define yytext_ptr yytext static yy_state_type yy_get_previous_state YY_PROTO(( void )); static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state )); static int yy_get_next_buffer YY_PROTO(( void )); static void yy_fatal_error YY_PROTO(( 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 = (int) (yy_cp - yy_bp); \ yy_hold_char = *yy_cp; \ *yy_cp = '\0'; \ yy_c_buf_p = yy_cp; #define YY_NUM_RULES 59 #define YY_END_OF_BUFFER 60 static yyconst short int yy_accept[163] = { 0, 0, 0, 0, 0, 0, 0, 60, 58, 3, 4, 11, 58, 1, 58, 18, 58, 15, 13, 14, 57, 16, 32, 32, 10, 24, 7, 25, 57, 57, 28, 29, 17, 57, 57, 57, 57, 57, 57, 57, 19, 12, 11, 47, 46, 45, 47, 47, 59, 48, 59, 53, 53, 53, 53, 53, 3, 23, 0, 43, 1, 34, 8, 0, 43, 57, 57, 35, 35, 32, 0, 0, 0, 20, 26, 22, 27, 21, 0, 57, 57, 57, 57, 57, 57, 0, 57, 57, 9, 42, 23, 0, 0, 0, 53, 53, 53, 53, 53, 53, 57, 57, 35, 30, 0, 35, 33, 0, 57, 57, 56, 57, 39, 57, 5, 38, 57, 57, 0, 53, 53, 53, 49, 0, 57, 35, 31, 57, 57, 56, 41, 57, 40, 57, 36, 44, 51, 52, 53, 35, 57, 0, 55, 0, 37, 57, 50, 57, 0, 54, 0, 2, 57, 54, 57, 57, 57, 57, 57, 57, 57, 6, 0 } ; static yyconst int yy_ec[256] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 5, 6, 7, 8, 1, 9, 10, 1, 1, 11, 12, 1, 13, 14, 15, 16, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 1, 20, 21, 22, 1, 1, 23, 24, 23, 25, 25, 23, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 26, 26, 28, 1, 29, 30, 31, 1, 32, 33, 34, 35, 36, 37, 38, 39, 40, 26, 26, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 26, 51, 27, 26, 26, 1, 52, 1, 53, 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 int yy_meta[54] = { 0, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 4, 4, 5, 5, 5, 1, 1, 1, 1, 6, 6, 6, 4, 4, 1, 1, 1, 4, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1 } ; static yyconst short int yy_base[175] = { 0, 0, 424, 51, 54, 90, 0, 428, 430, 425, 430, 405, 419, 0, 0, 415, 143, 430, 430, 430, 43, 0, 183, 48, 430, 47, 402, 48, 0, 412, 430, 430, 430, 388, 29, 388, 31, 417, 382, 370, 364, 430, 394, 430, 430, 430, 196, 371, 430, 430, 0, 0, 369, 373, 370, 367, 407, 430, 402, 401, 0, 0, 430, 396, 395, 232, 0, 186, 210, 241, 60, 69, 0, 430, 430, 430, 430, 430, 62, 360, 364, 367, 360, 357, 352, 86, 168, 348, 430, 0, 0, 211, 354, 361, 0, 0, 339, 345, 326, 315, 285, 251, 263, 198, 207, 213, 0, 255, 305, 302, 207, 288, 0, 286, 430, 0, 284, 297, 290, 290, 283, 297, 0, 257, 284, 292, 430, 279, 314, 325, 0, 290, 0, 278, 0, 430, 0, 0, 275, 303, 272, 279, 430, 275, 0, 227, 0, 218, 308, 430, 319, 0, 205, 430, 200, 180, 170, 174, 103, 36, 23, 0, 430, 338, 344, 350, 352, 356, 362, 365, 369, 375, 381, 383, 389 } ; static yyconst short int yy_def[175] = { 0, 162, 1, 163, 163, 162, 5, 162, 162, 162, 162, 162, 164, 165, 166, 162, 162, 162, 162, 162, 167, 167, 162, 162, 162, 162, 162, 162, 167, 167, 162, 162, 162, 167, 167, 167, 167, 167, 167, 167, 162, 162, 168, 162, 162, 162, 162, 162, 162, 162, 169, 170, 170, 170, 170, 170, 162, 162, 164, 164, 165, 166, 162, 171, 171, 172, 167, 167, 162, 162, 162, 162, 173, 162, 162, 162, 162, 162, 162, 167, 167, 167, 167, 167, 167, 162, 167, 167, 162, 168, 168, 162, 162, 162, 170, 170, 170, 170, 170, 170, 172, 167, 162, 162, 162, 162, 173, 162, 167, 167, 167, 167, 167, 167, 162, 167, 167, 167, 162, 170, 170, 170, 170, 162, 167, 167, 162, 167, 167, 162, 167, 167, 167, 167, 167, 162, 170, 170, 170, 162, 167, 174, 162, 162, 167, 167, 170, 167, 174, 162, 174, 167, 167, 162, 167, 167, 167, 167, 167, 167, 167, 167, 0, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162 } ; static yyconst short int yy_nxt[484] = { 0, 8, 9, 10, 8, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 23, 24, 25, 26, 27, 28, 29, 28, 28, 28, 30, 31, 32, 28, 33, 29, 28, 28, 34, 35, 28, 28, 28, 28, 28, 28, 28, 36, 37, 38, 28, 39, 28, 28, 40, 41, 44, 45, 46, 44, 45, 67, 67, 67, 68, 80, 69, 69, 69, 73, 74, 76, 77, 83, 81, 71, 161, 84, 103, 103, 107, 107, 160, 104, 104, 71, 71, 105, 105, 105, 85, 114, 47, 48, 48, 49, 48, 48, 48, 48, 48, 48, 50, 48, 48, 48, 51, 51, 48, 48, 48, 48, 48, 48, 48, 51, 51, 51, 51, 51, 48, 48, 48, 51, 51, 52, 53, 51, 51, 54, 51, 51, 55, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 48, 48, 63, 63, 159, 63, 63, 63, 63, 63, 63, 64, 63, 63, 63, 65, 65, 63, 63, 63, 63, 63, 63, 63, 65, 65, 65, 65, 65, 63, 63, 63, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 63, 63, 68, 91, 69, 69, 69, 67, 67, 67, 158, 115, 70, 71, 129, 72, 101, 157, 91, 103, 103, 70, 116, 71, 71, 156, 101, 101, 105, 105, 105, 102, 102, 102, 105, 105, 105, 92, 63, 63, 71, 63, 63, 63, 63, 63, 63, 64, 63, 63, 71, 71, 92, 155, 130, 154, 63, 63, 63, 63, 68, 152, 69, 69, 69, 63, 63, 63, 123, 124, 126, 71, 125, 125, 125, 151, 107, 107, 139, 139, 139, 71, 71, 142, 102, 102, 102, 149, 150, 63, 63, 63, 63, 71, 63, 63, 63, 63, 63, 63, 64, 63, 63, 71, 71, 125, 125, 125, 147, 63, 63, 63, 63, 125, 125, 125, 149, 150, 63, 63, 63, 141, 142, 143, 139, 139, 139, 153, 150, 146, 145, 144, 129, 140, 138, 137, 136, 135, 134, 133, 132, 131, 63, 63, 43, 43, 43, 43, 43, 43, 58, 128, 58, 58, 58, 58, 60, 127, 60, 60, 60, 60, 61, 61, 66, 66, 66, 66, 89, 122, 89, 89, 89, 89, 94, 121, 94, 95, 95, 95, 95, 63, 120, 63, 63, 63, 63, 100, 119, 100, 100, 100, 100, 106, 106, 148, 148, 148, 148, 148, 148, 118, 93, 117, 113, 112, 111, 110, 109, 108, 64, 64, 59, 59, 56, 99, 98, 97, 96, 93, 90, 88, 87, 86, 85, 82, 79, 78, 75, 62, 59, 57, 56, 162, 42, 7, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162 } ; static yyconst short int yy_chk[484] = { 0, 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, 3, 3, 4, 4, 4, 20, 20, 20, 23, 34, 23, 23, 23, 25, 25, 27, 27, 36, 34, 23, 160, 36, 70, 70, 78, 78, 159, 71, 71, 23, 23, 71, 71, 71, 85, 85, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 16, 16, 158, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 22, 46, 22, 22, 22, 67, 67, 67, 157, 86, 22, 22, 110, 22, 67, 156, 91, 103, 103, 22, 86, 22, 22, 155, 67, 67, 104, 104, 104, 68, 68, 68, 105, 105, 105, 46, 65, 65, 68, 65, 65, 65, 65, 65, 65, 65, 65, 65, 68, 68, 91, 154, 110, 152, 65, 65, 65, 65, 69, 147, 69, 69, 69, 65, 65, 65, 101, 101, 107, 69, 101, 101, 101, 145, 107, 107, 123, 123, 123, 69, 69, 143, 102, 102, 102, 141, 141, 65, 65, 100, 100, 102, 100, 100, 100, 100, 100, 100, 100, 100, 100, 102, 102, 124, 124, 124, 140, 100, 100, 100, 100, 125, 125, 125, 148, 148, 100, 100, 100, 128, 128, 128, 139, 139, 139, 150, 150, 138, 133, 131, 129, 127, 121, 120, 119, 118, 117, 116, 113, 111, 100, 100, 163, 163, 163, 163, 163, 163, 164, 109, 164, 164, 164, 164, 165, 108, 165, 165, 165, 165, 166, 166, 167, 167, 167, 167, 168, 99, 168, 168, 168, 168, 169, 98, 169, 170, 170, 170, 170, 171, 97, 171, 171, 171, 171, 172, 96, 172, 172, 172, 172, 173, 173, 174, 174, 174, 174, 174, 174, 93, 92, 87, 84, 83, 82, 81, 80, 79, 64, 63, 59, 58, 56, 55, 54, 53, 52, 47, 42, 40, 39, 38, 37, 35, 33, 29, 26, 15, 12, 11, 9, 7, 2, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162 } ; static yy_state_type yy_last_accepting_state; static char *yy_last_accepting_cpos; /* The intent behind this definition is that it'll catch * any uses of REJECT which flex missed. */ #define REJECT reject_used_but_not_detected #define yymore() yymore_used_but_not_detected #define YY_MORE_ADJ 0 #define YY_RESTORE_YY_MORE_OFFSET char *yytext; #line 1 "scan.ll" #define INITIAL 0 #line 2 "scan.ll" /* Copyright (C) 1998 T. Scott Dattalo This file is part of gpsim. gpsim 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, or (at your option) any later version. gpsim 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 gpsim; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #ifdef _WIN32 /* declaration of isatty() */ #include #endif #include "command.h" #include "../src/operator.h" //#include "../src/errors.h" #include "cmd_macro.h" #include "../src/symbol.h" #include "../src/stimuli.h" #include "parse.h" #include "input.h" #include "scan.h" #include "../src/processor.h" /* Since our parser is reentrant, it needs to pass us a pointer * to the yylval that it would like us to use */ #ifdef YY_PROTO #define YY_DECL int yylex YY_PROTO(( YYSTYPE* yylvalP )) #else #define YY_DECL int yylex ( YYSTYPE* yylvalP ) #endif extern int yyparse(void); /* This is the max length of a line within a macro definition */ static char macroBody[65536], *macroBodyPtr=0; static char* max_bodyPtr = ¯oBody[0] + sizeof(macroBody)-1; struct LexerStateStruct { struct cmd_options *options; command *cmd; int input_mode; int end_of_command; int have_parameters; int mode; struct LexerStateStruct *prev; struct LexerStateStruct *next; }; static char * m_pLastFullCommand = NULL; void SetLastFullCommand(const char *pCmd) { if (strlen(pCmd)>1) { if (m_pLastFullCommand) free (m_pLastFullCommand); m_pLastFullCommand = strdup(pCmd); } } const char * GetLastFullCommand() { return m_pLastFullCommand; } static LexerStateStruct *pLexerState = 0; static int sLevels=0; extern int quit_parse; extern int parser_spanning_lines; extern int last_command_is_repeatable; static string strip_trailing_whitespace (char *s); static int handle_identifier(YYSTYPE* yylvalP, string &tok, cmd_options **op ); static int process_intLiteral(YYSTYPE* yylvalP, char *buffer, int conversionBase); static int process_booleanLiteral(YYSTYPE* yylvalP, bool value); static int process_macroBody(YYSTYPE* yylvalP, const char *text); static int process_floatLiteral(YYSTYPE* yylvalP, char *buffer); static int process_stringLiteral(YYSTYPE* yylvalP, const char *buffer); static int process_quotedStringLiteral(YYSTYPE* yylvalP, const char *buffer); static int process_shellLine(YYSTYPE* yylvalP, const char *buffer); static int recognize(int token,const char *); static void SetMode(int newmode); void scanPopMacroState(); int cli_corba_init (char *ior_id); extern Macro *isMacro(const string &s); static Macro *gCurrentMacro=0; #define YYDEBUG 1 //======================================================================== // MacroChain class // // class MacroChain { public: struct Link { Link *prev; Link *next; Macro *m; }; MacroChain() { head.prev = head.next =0; curr = &head; } void push(Macro *m) { if (verbose & 4 && m) { cout << "Pushing " << m->name() << " onto the macro chain\n"; } Link *pL = new Link(); pL->m = m; pL->prev = &head; pL->next = head.next; head.next = pL; param = pL; curr = &head; } void pop() { Link *pL = head.next; if (pL) { if (verbose & 4 && pL->m) { cout << "Popping " << pL->m->name() << " from the macro chain\n"; } head.next = pL->next; if (pL->next) pL->next->prev = &head; delete pL; } } Macro *nextParamSource() { if (curr) curr = curr->next; if (verbose & 4 && curr && curr->m ) { cout << " selecting parameter source " << curr->m->name() << endl; } if(curr) return curr->m; return 0; } void popParamSource() { if (verbose & 4 && curr && curr->m ) { cout << " popping parameter source " << curr->m->name() << endl; } if (curr) curr = curr->prev; } void resetParamSource() { if (verbose & 4) { cout << " resetparameter source\n"; } curr = &head; } private: Link *curr; Link head; Link *param; }; static MacroChain theMacroChain; #line 233 "scan.ll" /* Lexer States */ #define MACROBODY 1 #define DECLARATION 2 #line 239 "scan.ll" //************************************************************************ //************************************************************************ #line 738 "scan.cc" /* Macros after this point can all be overridden by user definitions in * section 1. */ #ifndef YY_SKIP_YYWRAP #ifdef __cplusplus extern "C" int yywrap YY_PROTO(( void )); #else extern int yywrap YY_PROTO(( void )); #endif #endif #ifndef YY_NO_UNPUT static void yyunput YY_PROTO(( int c, char *buf_ptr )); #endif #ifndef yytext_ptr static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int )); #endif #ifdef YY_NEED_STRLEN static int yy_flex_strlen YY_PROTO(( yyconst char * )); #endif #ifndef YY_NO_INPUT #ifdef __cplusplus static int yyinput YY_PROTO(( void )); #else static int input YY_PROTO(( void )); #endif #endif #if YY_STACK_USED static int yy_start_stack_ptr = 0; static int yy_start_stack_depth = 0; static int *yy_start_stack = 0; #ifndef YY_NO_PUSH_STATE static void yy_push_state YY_PROTO(( int new_state )); #endif #ifndef YY_NO_POP_STATE static void yy_pop_state YY_PROTO(( void )); #endif #ifndef YY_NO_TOP_STATE static int yy_top_state YY_PROTO(( void )); #endif #else #define YY_NO_PUSH_STATE 1 #define YY_NO_POP_STATE 1 #define YY_NO_TOP_STATE 1 #endif #ifdef YY_MALLOC_DECL YY_MALLOC_DECL #else #if __STDC__ #ifndef __cplusplus #include #endif #else /* Just try to get by without declaring the routines. This will fail * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int) * or sizeof(void*) != sizeof(int). */ #endif #endif /* 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->yy_is_interactive ) \ { \ int c = '*', 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 if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \ && ferror( yyin ) ) \ YY_FATAL_ERROR( "input in flex scanner failed" ); #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 /* Default declaration of generated scanner - a define so the user can * easily add parameters. */ #ifndef YY_DECL #define YY_DECL int yylex YY_PROTO(( void )) #endif /* 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 \ if ( yyleng > 0 ) \ yy_current_buffer->yy_at_bol = \ (yytext[yyleng - 1] == '\n'); \ YY_USER_ACTION YY_DECL { register yy_state_type yy_current_state; register char *yy_cp = NULL, *yy_bp = NULL; register int yy_act; #line 243 "scan.ll" // Comments. Ignore all text after a comment character #line 899 "scan.cc" if ( yy_init ) { yy_init = 0; #ifdef YY_USER_INIT YY_USER_INIT; #endif if ( ! yy_start ) yy_start = 1; /* first start state */ if ( ! yyin ) yyin = stdin; if ( ! yyout ) yyout = stdout; if ( ! yy_current_buffer ) yy_current_buffer = 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_current_state += YY_AT_BOL(); yy_match: do { register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)]; if ( yy_accept[yy_current_state] ) { yy_last_accepting_state = yy_current_state; yy_last_accepting_cpos = 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 >= 163 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; ++yy_cp; } while ( yy_base[yy_current_state] != 430 ); yy_find_action: yy_act = yy_accept[yy_current_state]; if ( yy_act == 0 ) { /* have to back up */ yy_cp = yy_last_accepting_cpos; yy_current_state = yy_last_accepting_state; yy_act = 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 0: /* must back up */ /* undo the effects of YY_DO_BEFORE_ACTION */ *yy_cp = yy_hold_char; yy_cp = yy_last_accepting_cpos; yy_current_state = yy_last_accepting_state; goto yy_find_action; case 1: YY_RULE_SETUP #line 249 "scan.ll" YY_BREAK case 2: YY_RULE_SETUP #line 251 "scan.ll" recognize(COMMENT_T,"comment"); YY_BREAK case 3: YY_RULE_SETUP #line 255 "scan.ll" { /* ignore white space */ } YY_BREAK case 4: YY_RULE_SETUP #line 257 "scan.ll" { if(verbose) cout << "got EOL\n"; pLexerState->input_mode = 0; // assume that this is not a multi-line command. if(pLexerState->cmd && pLexerState->cmd->can_span_lines() && pLexerState->have_parameters && !pLexerState->end_of_command ) pLexerState->input_mode = CONTINUING_LINE; else { pLexerState->cmd = 0; return recognize(EOLN_T, " end of line"); } } YY_BREAK { // Got an eol. if(verbose) cout << "got INITIAL\n"; pLexerState->input_mode = 0; // assume that this is not a multi-line command. if(pLexerState->cmd && pLexerState->cmd->can_span_lines() && pLexerState->have_parameters && !pLexerState->end_of_command ) pLexerState->input_mode = CONTINUING_LINE; //else // return recognize(EOLN_T, " end of line"); } case 5: YY_RULE_SETUP #line 292 "scan.ll" { /* short cut for quiting */ quit_parse =1; return QUIT; } YY_BREAK case 6: YY_RULE_SETUP #line 297 "scan.ll" { /* a sure way to abort a script */ return ABORT; } YY_BREAK case 7: YY_RULE_SETUP #line 302 "scan.ll" {return(recognize(EQU_T, "="));} YY_BREAK case 8: YY_RULE_SETUP #line 303 "scan.ll" {return(recognize(LAND_T, "&&"));} YY_BREAK case 9: YY_RULE_SETUP #line 304 "scan.ll" {return(recognize(LOR_T, "||"));} YY_BREAK case 10: YY_RULE_SETUP #line 306 "scan.ll" {return(recognize(COLON_T, ":"));} YY_BREAK case 11: YY_RULE_SETUP #line 307 "scan.ll" {return(recognize(LNOT_T,"!"));} YY_BREAK case 12: YY_RULE_SETUP #line 308 "scan.ll" {return(recognize(ONESCOMP_T,"~"));} YY_BREAK case 13: YY_RULE_SETUP #line 309 "scan.ll" {return(recognize(PLUS_T,"+"));} YY_BREAK case 14: YY_RULE_SETUP #line 310 "scan.ll" {return(recognize(MINUS_T,"-"));} YY_BREAK case 15: YY_RULE_SETUP #line 311 "scan.ll" {return(recognize(MPY_T,"*"));} YY_BREAK case 16: YY_RULE_SETUP #line 312 "scan.ll" {return(recognize(DIV_T,"/"));} YY_BREAK case 17: YY_RULE_SETUP #line 313 "scan.ll" {return(recognize(XOR_T,"^"));} YY_BREAK case 18: YY_RULE_SETUP #line 314 "scan.ll" {return(recognize(AND_T,"&"));} YY_BREAK case 19: YY_RULE_SETUP #line 315 "scan.ll" {return(recognize(OR_T,"|"));} YY_BREAK case 20: YY_RULE_SETUP #line 316 "scan.ll" {return(recognize(SHL_T,"<<"));} YY_BREAK case 21: YY_RULE_SETUP #line 317 "scan.ll" {return(recognize(SHR_T,">>"));} YY_BREAK case 22: YY_RULE_SETUP #line 319 "scan.ll" {return(recognize(EQ_T, "=="));} YY_BREAK case 23: YY_RULE_SETUP #line 320 "scan.ll" {return(recognize(NE_T, "!="));} YY_BREAK case 24: YY_RULE_SETUP #line 321 "scan.ll" {return(recognize(LT_T, "<"));} YY_BREAK case 25: YY_RULE_SETUP #line 322 "scan.ll" {return(recognize(GT_T, ">"));} YY_BREAK case 26: YY_RULE_SETUP #line 323 "scan.ll" {return(recognize(LE_T, "<="));} YY_BREAK case 27: YY_RULE_SETUP #line 324 "scan.ll" {return(recognize(GE_T, ">="));} YY_BREAK case 28: YY_RULE_SETUP #line 326 "scan.ll" {return(recognize(INDEXERLEFT_T, "["));} YY_BREAK case 29: YY_RULE_SETUP #line 327 "scan.ll" {return(recognize(INDEXERRIGHT_T, "]"));} YY_BREAK case 30: YY_RULE_SETUP #line 329 "scan.ll" {return(process_intLiteral(yylvalP,&yytext[2], 2));} YY_BREAK case 31: YY_RULE_SETUP #line 330 "scan.ll" {return(process_intLiteral(yylvalP,&yytext[2], 2));} YY_BREAK case 32: YY_RULE_SETUP #line 331 "scan.ll" {return(process_intLiteral(yylvalP,&yytext[0], 10));} YY_BREAK case 33: YY_RULE_SETUP #line 332 "scan.ll" {return(process_intLiteral(yylvalP,&yytext[2], 16));} YY_BREAK case 34: YY_RULE_SETUP #line 333 "scan.ll" {return(process_intLiteral(yylvalP,&yytext[1], 16));} YY_BREAK case 35: YY_RULE_SETUP #line 334 "scan.ll" {return process_floatLiteral(yylvalP,yytext);} YY_BREAK case 36: YY_RULE_SETUP #line 335 "scan.ll" {return(process_booleanLiteral(yylvalP,true));} YY_BREAK case 37: YY_RULE_SETUP #line 336 "scan.ll" {return(process_booleanLiteral(yylvalP,false));} YY_BREAK case 38: YY_RULE_SETUP #line 337 "scan.ll" {return(recognize(REG_T,"reg"));} YY_BREAK case 39: YY_RULE_SETUP #line 338 "scan.ll" {return(recognize(PIN_T, "pin"));} YY_BREAK case 40: YY_RULE_SETUP #line 339 "scan.ll" {return(recognize(PORT_T, "port"));} YY_BREAK case 41: YY_RULE_SETUP #line 341 "scan.ll" {scanPopMacroState();} YY_BREAK case 42: YY_RULE_SETUP #line 343 "scan.ll" {return(process_shellLine(yylvalP,&yytext[1]));} YY_BREAK case 43: YY_RULE_SETUP #line 344 "scan.ll" {return(process_quotedStringLiteral(yylvalP,&yytext[1]));} YY_BREAK //======================================================================== // Macro processing case 44: YY_RULE_SETUP #line 352 "scan.ll" {SetMode(INITIAL); return(recognize(ENDM,"endm")); } YY_BREAK case 45: YY_RULE_SETUP #line 354 "scan.ll" {/*discard CR's*/} YY_BREAK case 46: YY_RULE_SETUP #line 355 "scan.ll" {*macroBodyPtr++ = '\n'; *macroBodyPtr = 0; macroBodyPtr = macroBody; return(process_macroBody(yylvalP,macroBody));} YY_BREAK case 47: YY_RULE_SETUP #line 361 "scan.ll" { *macroBodyPtr++ = *yytext; if(verbose&4) printf("adding [%c]\n", *yytext); if (macroBodyPtr > max_bodyPtr) { cout << "buffer overflow in macro definition\n"; exit(0); } } YY_BREAK //======================================================================== // Declaration Processing case 48: YY_RULE_SETUP #line 376 "scan.ll" {SetMode(INITIAL); return(recognize(EOLN_T, "end of declaration")); } YY_BREAK case 49: YY_RULE_SETUP #line 377 "scan.ll" {return recognize(DECLARE_INT_T, "int type"); } YY_BREAK case 50: YY_RULE_SETUP #line 378 "scan.ll" {return recognize(DECLARE_FLOAT_T,"float type"); } YY_BREAK case 51: YY_RULE_SETUP #line 379 "scan.ll" {return recognize(DECLARE_BOOL_T, "bool type"); } YY_BREAK case 52: YY_RULE_SETUP #line 380 "scan.ll" {return recognize(DECLARE_FLOAT_T,"char type"); } YY_BREAK case 53: YY_RULE_SETUP #line 381 "scan.ll" { return process_stringLiteral(yylvalP, yytext); } YY_BREAK // The 'echo' command is handled by the lexer instead of the // parser (like the other commands). All it does is just display // the contents of yytext beyond the "echo". case 54: YY_RULE_SETUP #line 390 "scan.ll" { fprintf(yyout,"%s",&yytext[5]); return recognize(EOLN_T, " end of line"); } YY_BREAK case 55: YY_RULE_SETUP #line 396 "scan.ll" { fprintf(yyout,"\n"); return recognize(EOLN_T, " end of line"); } YY_BREAK // Indirect register access.... this should be an expression operator. /* {INDIRECT} { return INDIRECT; } */ // If this is a command that is spanning more than one line // then the 'end' command will finish it. case 56: YY_RULE_SETUP #line 421 "scan.ll" { if (pLexerState->cmd && pLexerState->cmd->can_span_lines() ) { pLexerState->end_of_command = 1; return(END_OF_COMMAND); } printf("Warning: found \"end\" while not in multiline mode\n"); } YY_BREAK // Identifiers. These are either gpsim commands or user macros. case 57: YY_RULE_SETUP #line 433 "scan.ll" { string tok = strip_trailing_whitespace (yytext); int ret=0; if(strlen(tok.c_str())) ret = handle_identifier (yylvalP, tok, &pLexerState->options); else ret = recognize(0,"invalid identifier"); if(ret) return ret; } YY_BREAK /* Default is to recognize the character we are looking at as a single char */ case 58: YY_RULE_SETUP #line 450 "scan.ll" {return(recognize(*yytext,"Single character"));} YY_BREAK case 59: YY_RULE_SETUP #line 452 "scan.ll" ECHO; YY_BREAK #line 1388 "scan.cc" case YY_STATE_EOF(INITIAL): case YY_STATE_EOF(MACROBODY): case YY_STATE_EOF(DECLARATION): yyterminate(); 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->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->yy_n_chars; yy_current_buffer->yy_input_file = yyin; yy_current_buffer->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->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->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() { register char *dest = yy_current_buffer->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->yy_ch_buf[yy_n_chars + 1] ) YY_FATAL_ERROR( "fatal flex scanner internal error--end of buffer missed" ); if ( yy_current_buffer->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->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->yy_n_chars = yy_n_chars = 0; else { int num_to_read = yy_current_buffer->yy_buf_size - number_to_move - 1; while ( num_to_read <= 0 ) { /* Not enough room in the buffer - grow it. */ #ifdef YY_USES_REJECT YY_FATAL_ERROR( "input buffer overflow, can't enlarge buffer because scanner uses REJECT" ); #else /* just a shorter name for the current buffer */ YY_BUFFER_STATE b = yy_current_buffer; int yy_c_buf_p_offset = (int) (yy_c_buf_p - b->yy_ch_buf); if ( b->yy_is_our_buffer ) { int new_size = b->yy_buf_size * 2; if ( new_size <= 0 ) b->yy_buf_size += b->yy_buf_size / 8; else b->yy_buf_size *= 2; b->yy_ch_buf = (char *) /* Include room in for 2 EOB chars. */ yy_flex_realloc( (void *) b->yy_ch_buf, b->yy_buf_size + 2 ); } else /* Can't grow it, we don't own it. */ b->yy_ch_buf = 0; if ( ! b->yy_ch_buf ) YY_FATAL_ERROR( "fatal error - scanner input buffer overflow" ); yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset]; num_to_read = yy_current_buffer->yy_buf_size - number_to_move - 1; #endif } if ( num_to_read > YY_READ_BUF_SIZE ) num_to_read = YY_READ_BUF_SIZE; /* Read in more data. */ YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]), yy_n_chars, num_to_read ); yy_current_buffer->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->yy_buffer_status = YY_BUFFER_EOF_PENDING; } } else ret_val = EOB_ACT_CONTINUE_SCAN; yy_n_chars += number_to_move; yy_current_buffer->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR; yy_current_buffer->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR; yytext_ptr = &yy_current_buffer->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() { register yy_state_type yy_current_state; register char *yy_cp; yy_current_state = yy_start; yy_current_state += YY_AT_BOL(); 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); if ( yy_accept[yy_current_state] ) { yy_last_accepting_state = yy_current_state; yy_last_accepting_cpos = 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 >= 163 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; } 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 ); */ #ifdef YY_USE_PROTOS static yy_state_type yy_try_NUL_trans( yy_state_type yy_current_state ) #else static yy_state_type yy_try_NUL_trans( yy_current_state ) yy_state_type yy_current_state; #endif { register int yy_is_jam; register char *yy_cp = yy_c_buf_p; register YY_CHAR yy_c = 1; if ( yy_accept[yy_current_state] ) { yy_last_accepting_state = yy_current_state; yy_last_accepting_cpos = 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 >= 163 ) 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 == 162); return yy_is_jam ? 0 : yy_current_state; } #ifndef YY_NO_UNPUT #ifdef YY_USE_PROTOS static void yyunput( int c, register char *yy_bp ) #else static void yyunput( c, yy_bp ) int c; register char *yy_bp; #endif { register char *yy_cp = yy_c_buf_p; /* undo effects of setting up yytext */ *yy_cp = yy_hold_char; if ( yy_cp < yy_current_buffer->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->yy_ch_buf[ yy_current_buffer->yy_buf_size + 2]; register char *source = &yy_current_buffer->yy_ch_buf[number_to_move]; while ( source > yy_current_buffer->yy_ch_buf ) *--dest = *--source; yy_cp += (int) (dest - source); yy_bp += (int) (dest - source); yy_current_buffer->yy_n_chars = yy_n_chars = yy_current_buffer->yy_buf_size; if ( yy_cp < yy_current_buffer->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; } #endif /* ifndef YY_NO_UNPUT */ #ifndef YY_NO_INPUT #ifdef __cplusplus static int yyinput() #else static int input() #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->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 ); /* fall through */ 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; yy_current_buffer->yy_at_bol = (c == '\n'); return c; } #endif /* YY_NO_INPUT */ #ifdef YY_USE_PROTOS void yyrestart( FILE *input_file ) #else void yyrestart( input_file ) FILE *input_file; #endif { if ( ! yy_current_buffer ) yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); yy_init_buffer( yy_current_buffer, input_file ); yy_load_buffer_state(); } #ifdef YY_USE_PROTOS void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer ) #else void yy_switch_to_buffer( new_buffer ) YY_BUFFER_STATE new_buffer; #endif { 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->yy_buf_pos = yy_c_buf_p; yy_current_buffer->yy_n_chars = yy_n_chars; } yy_current_buffer = 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; } #ifdef YY_USE_PROTOS void yy_load_buffer_state( void ) #else void yy_load_buffer_state() #endif { yy_n_chars = yy_current_buffer->yy_n_chars; yytext_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos; yyin = yy_current_buffer->yy_input_file; yy_hold_char = *yy_c_buf_p; } #ifdef YY_USE_PROTOS YY_BUFFER_STATE yy_create_buffer( FILE *file, int size ) #else YY_BUFFER_STATE yy_create_buffer( file, size ) FILE *file; int size; #endif { YY_BUFFER_STATE b; b = (YY_BUFFER_STATE) yy_flex_alloc( 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 *) yy_flex_alloc( 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; } #ifdef YY_USE_PROTOS void yy_delete_buffer( YY_BUFFER_STATE b ) #else void yy_delete_buffer( b ) YY_BUFFER_STATE b; #endif { if ( ! b ) return; if ( b == yy_current_buffer ) yy_current_buffer = (YY_BUFFER_STATE) 0; if ( b->yy_is_our_buffer ) yy_flex_free( (void *) b->yy_ch_buf ); yy_flex_free( (void *) b ); } #ifdef YY_USE_PROTOS void yy_init_buffer( YY_BUFFER_STATE b, FILE *file ) #else void yy_init_buffer( b, file ) YY_BUFFER_STATE b; FILE *file; #endif { yy_flush_buffer( b ); b->yy_input_file = file; b->yy_fill_buffer = 1; #if YY_ALWAYS_INTERACTIVE b->yy_is_interactive = 1; #else #if YY_NEVER_INTERACTIVE b->yy_is_interactive = 0; #else b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; #endif #endif } #ifdef YY_USE_PROTOS void yy_flush_buffer( YY_BUFFER_STATE b ) #else void yy_flush_buffer( b ) YY_BUFFER_STATE b; #endif { 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(); } #ifndef YY_NO_SCAN_BUFFER #ifdef YY_USE_PROTOS YY_BUFFER_STATE yy_scan_buffer( char *base, yy_size_t size ) #else YY_BUFFER_STATE yy_scan_buffer( base, size ) char *base; yy_size_t size; #endif { 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) yy_flex_alloc( 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; } #endif #ifndef YY_NO_SCAN_STRING #ifdef YY_USE_PROTOS YY_BUFFER_STATE yy_scan_string( yyconst char *yy_str ) #else YY_BUFFER_STATE yy_scan_string( yy_str ) yyconst char *yy_str; #endif { int len; for ( len = 0; yy_str[len]; ++len ) ; return yy_scan_bytes( yy_str, len ); } #endif #ifndef YY_NO_SCAN_BYTES #ifdef YY_USE_PROTOS YY_BUFFER_STATE yy_scan_bytes( yyconst char *bytes, int len ) #else YY_BUFFER_STATE yy_scan_bytes( bytes, len ) yyconst char *bytes; int len; #endif { 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 *) yy_flex_alloc( 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; } #endif #ifndef YY_NO_PUSH_STATE #ifdef YY_USE_PROTOS static void yy_push_state( int new_state ) #else static void yy_push_state( new_state ) int new_state; #endif { 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 *) yy_flex_alloc( new_size ); else yy_start_stack = (int *) yy_flex_realloc( (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); } #endif #ifndef YY_NO_POP_STATE static void yy_pop_state() { if ( --yy_start_stack_ptr < 0 ) YY_FATAL_ERROR( "start-condition stack underflow" ); BEGIN(yy_start_stack[yy_start_stack_ptr]); } #endif #ifndef YY_NO_TOP_STATE static int yy_top_state() { return yy_start_stack[yy_start_stack_ptr - 1]; } #endif #ifndef YY_EXIT_FAILURE #define YY_EXIT_FAILURE 2 #endif #ifdef YY_USE_PROTOS static void yy_fatal_error( yyconst char msg[] ) #else static void yy_fatal_error( msg ) char msg[]; #endif { (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. */ \ yytext[yyleng] = yy_hold_char; \ yy_c_buf_p = yytext + n; \ yy_hold_char = *yy_c_buf_p; \ *yy_c_buf_p = '\0'; \ yyleng = n; \ } \ while ( 0 ) /* Internal utility routines. */ #ifndef yytext_ptr #ifdef YY_USE_PROTOS static void yy_flex_strncpy( char *s1, yyconst char *s2, int n ) #else static void yy_flex_strncpy( s1, s2, n ) char *s1; yyconst char *s2; int n; #endif { register int i; for ( i = 0; i < n; ++i ) s1[i] = s2[i]; } #endif #ifdef YY_NEED_STRLEN #ifdef YY_USE_PROTOS static int yy_flex_strlen( yyconst char *s ) #else static int yy_flex_strlen( s ) yyconst char *s; #endif { register int n; for ( n = 0; s[n]; ++n ) ; return n; } #endif #ifdef YY_USE_PROTOS static void *yy_flex_alloc( yy_size_t size ) #else static void *yy_flex_alloc( size ) yy_size_t size; #endif { return (void *) malloc( size ); } #ifdef YY_USE_PROTOS static void *yy_flex_realloc( void *ptr, yy_size_t size ) #else static void *yy_flex_realloc( ptr, size ) void *ptr; yy_size_t size; #endif { /* 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 ); } #ifdef YY_USE_PROTOS static void yy_flex_free( void *ptr ) #else static void yy_flex_free( ptr ) void *ptr; #endif { free( ptr ); } #if YY_MAIN int main() { yylex(); return 0; } #endif #line 452 "scan.ll" /* make it work with flex 2.5.31 */ #ifndef yytext_ptr #define yytext_ptr yytext #endif #define MAX_STACK_LEVELS 16 static int input_stack_index=0; YY_BUFFER_STATE input_stack[MAX_STACK_LEVELS]; /************************************************************************ * yywrap() * * Revert to an old input stream if there is one. If there is not an old * old stream, then the lexer will try to get data from YY_INPUT which * is a macro that calls gpsim_read() (see scan.h). * An 'old' stream is one that was interrupted by a macro expansion. * */ #ifdef yywrap #undef yywrap #endif int yywrap (void) { if(input_stack_index) { yy_delete_buffer(YY_CURRENT_BUFFER); yy_switch_to_buffer(input_stack[--input_stack_index]); return 0; } return 1; } /************************************************************************ * push_input_stack * * called when macros are being expanded. */ static void push_input_stack(void) { if(input_stack_indexname() << endl; else cout << " but there is no current macro\n"; } if(currentMacro && currentMacro->substituteParameter(s,replaced)) if(replaced != s) { if (verbose & 4) cout << " -- found it and replaced it with " << replaced << endl; if (bTryMacroParameterExpansion (replaced)) return true; push_input_stack(); yy_scan_string(replaced.c_str()); theMacroChain.resetParamSource(); return true; } theMacroChain.popParamSource(); return false; } /************************************************************************* * * handle_identifier * * input string &s * cmd_options **op * output int * * 1 - If `op' is NULL, then handle identifier hasn't been called * for the current command that's being processed. So, the * the string `s' is compared to all of the valid commands. * If it is valid, then `op' is assigned a pointer to the * options associated with the command. If the string is not * found, then that's a syntax error and the string is ignored. * 2 - If `op' is non-NULL, then handle_identifier has been called * at least once before for the command that's being processed. * So the string `s' is then compared to the options associated * with the command. If an option is not found, then the string * is returned to the parser (as a type STRING). This places the * burden of syntax checking on the parser and/or the individual * command. * */ int handle_identifier(YYSTYPE* yylvalP, string &s, cmd_options **op ) { int retval = 0; // If no command has been found so far, then the options (*op) // haven't been selected either (and consequently *op is null). if(! *op) { // If the first character in the string is a ' (single quote character) then // this means that the user is explicitly trying to access a user defined symbol // (e.g. if there is variable named "help" in the user's symbol table, then the // only way to get access to it is by using the single quote character: // 'help if(s[0] == '\'') // Strip away the quote, we won't treat this as a command and the parser // doesn't want to know about it. s=s.erase(0,1); else { // Search the commands pLexerState->cmd = search_commands(s); if(pLexerState->cmd) { if(verbose&2) cout << "\n *******\nprocessing command " << (pLexerState->cmd->name) << "\n token value " << (pLexerState->cmd->get_token()) << "\n *******\n"; *op = pLexerState->cmd->get_op(); pLexerState->have_parameters = 0; retval = pLexerState->cmd->get_token(); // ugh. This is problem when the parser becomes re-entrant. last_command_is_repeatable = pLexerState->cmd->is_repeatable(); return recognize(retval,"good command"); } } // Search the macros yylvalP->Macro_P = isMacro(s); if(yylvalP->Macro_P) { return MACROINVOCATION_T; } if (bTryMacroParameterExpansion(s)) return 0; } else { if(verbose&2) cout << "search options for command '" << (pLexerState->cmd ? pLexerState->cmd->name : "?") << "'\n"; if (bTryMacroParameterExpansion(s)) return 0; // We already have the command, so search the options. struct cmd_options *opt = *op; // We also have one or more parameters now (though they // may not be correct, but that's the parser's job to determine). pLexerState->have_parameters = 1; while(opt->name) if(strcmp(opt->name, s.c_str()) == 0) { if(verbose&2) cout << "found option '" << opt->name << "'\n"; yylvalP->co = opt; return recognize(translate_token(opt->token_type),"option"); } else opt++; } // If we get here, then the option was not found. // So let's check the symbols Processor *cpu; if(s[0] == '.' && (cpu = get_active_cpu()) != 0) s.insert(0,cpu->name()); string s1(s); Value *sym = get_symbol_table().find(s1); if(sym) { yylvalP->Symbol_P = sym; if(verbose&2) cout << "found symbol '" << sym->name() << "'\n"; return recognize(SYMBOL_T,"symbol"); } //cout << "didn't find it in the symbol list\n"; // Either 1) there's a typo or 2) the command is creating // a new symbol or node or something along those lines. // In either case, let's let the parser deal with it. if(verbose&2) cout << " returning unknown string: " << s << endl; return process_stringLiteral(yylvalP,s.c_str()); return 0; } /***************************************************************** * Process an integer literal. This routine constructs the * YYSTYPE object. The caller is responsible from returning the * LITERAL_INT_T token identifer to the parser. */ static int process_intLiteral(YYSTYPE* yylvalP, char *buffer, int conversionBase) { char c; gint64 literalValue=0; gint64 nxtDigit; while (*buffer) { c = toupper(*buffer++); nxtDigit = (c) <= '9' ? c-'0' : c-'A'+10; if ((nxtDigit >= conversionBase) || (nxtDigit<0)) { /* If the next digit exceeds the base, then it's an error unless this is a binary conversion and the character is a single quote */ if(!(conversionBase == 2 && c == '\'')) literalValue = 0; break; } literalValue *= conversionBase; literalValue += nxtDigit; } yylvalP->Integer_P = new Integer(literalValue); return(recognize(LITERAL_INT_T,"literal int")); } /***************************************************************** * */ static int process_macroBody(YYSTYPE* yylvalP, const char *text) { yylvalP->s = strdup(text); return recognize(MACROBODY_T,"macro body"); } /***************************************************************** * */ static int process_booleanLiteral(YYSTYPE* yylvalP, bool value) { yylvalP->Boolean_P = new Boolean(value); return(recognize(LITERAL_BOOL_T, "boolean literal")); } /***************************************************************** * */ static int process_floatLiteral(YYSTYPE* yylvalP, char *buffer) { double floatValue; #if 0 errno = 0; floatValue = atof(buffer); if (errno != 0) { /* The conversion failed */ throw new Error("Bad floating point literal"); } #else char *endptr=0; floatValue = strtod(buffer, &endptr); if (endptr == buffer) throw new Error("Bad floating point literal"); #endif yylvalP->Float_P = new Float(floatValue); return(recognize(LITERAL_FLOAT_T, "float literal")); } /***************************************************************** * */ static int process_stringLiteral(YYSTYPE* yylvalP, const char *buffer) { yylvalP->String_P = new String(buffer); return(recognize(LITERAL_STRING_T, "string literal")); } static int process_quotedStringLiteral(YYSTYPE* yylvalP, const char *buffer) { char * pCloseQuote = strchr(buffer, '\"'); if(pCloseQuote == NULL) pCloseQuote = strchr(buffer, '\''); *pCloseQuote = 0; yylvalP->String_P = new String(buffer); return(recognize(LITERAL_STRING_T, "string literal")); } /***************************************************************** * */ static int process_shellLine(YYSTYPE* yylvalP, const char *buffer) { yylvalP->String_P = new String(buffer); return(recognize(SHELL, "shell line")); } static string strip_trailing_whitespace (char *s) { string retval = s; size_t pos = retval.find_first_of (" \t"); if (pos != string::npos) retval.resize (pos); return retval; } //------------------------------------------------------------------------ static void SetMode(int newmode) { BEGIN(newmode); if(pLexerState) pLexerState->mode = newmode; } void initialize_commands(void); void init_cmd_state(void) { if(pLexerState) { if (verbose) cout << "scan: clearing lexer state and flushing buffer\n"; pLexerState->cmd = 0; pLexerState->options = 0; pLexerState->input_mode = 0; pLexerState->end_of_command = 0; pLexerState->have_parameters = 0; pLexerState->mode = 0; } } void FlushLexerBuffer() { #ifdef YY_FLUSH_BUFFER YY_FLUSH_BUFFER; #else yy_flush_buffer( YY_CURRENT_BUFFER ); #endif } static void pushLexerState() { if(verbose) cout << "pushing lexer state: from level " << sLevels << " to " << (sLevels+1) << endl; sLevels++; LexerStateStruct *pLS = new LexerStateStruct(); if(pLexerState) pLexerState->next = pLS; pLS->prev = pLexerState; pLexerState = pLS; pLS->next = 0; init_cmd_state(); } static void popLexerState() { if(verbose) cout << "popping lexer state: from level " << sLevels << " to " << (sLevels-1) << endl; sLevels--; if(pLexerState) { LexerStateStruct *pLS = pLexerState; pLexerState = pLS->prev; if(pLexerState) { pLexerState->next = 0; pLexerState->cmd = 0; pLexerState->options = 0; } SetMode(pLS->mode); delete pLS; } } int scan_read (char *buf, unsigned max_size) { static int lastRet = -1; // hack int ret = gpsim_read(buf,max_size); if (lastRet == ret && ret == 0) { *buf = '\n'; ret = 1; } lastRet = ret; return ret; } int init_parser() { pushLexerState(); int ret = yyparse(); popLexerState(); return ret; } // Tell us what the current buffer is. YY_BUFFER_STATE current_buffer (void) { return YY_CURRENT_BUFFER; } // Create a new buffer. YY_BUFFER_STATE create_buffer (FILE *f) { return yy_create_buffer (f, YY_BUF_SIZE); } // Start reading a new buffer. void switch_to_buffer (YY_BUFFER_STATE buf) { yy_switch_to_buffer (buf); } // Delete a buffer. void delete_buffer (YY_BUFFER_STATE buf) { yy_delete_buffer (buf); } // Restore a buffer (for unwind-prot). void restore_input_buffer (void *buf) { switch_to_buffer ((YY_BUFFER_STATE) buf); } // Delete a buffer (for unwind-prot). void delete_input_buffer (void *buf) { delete_buffer ((YY_BUFFER_STATE) buf); } //------------------------------------------------------------------------ // called by the parser error handler. command *getLastKnownCommand() { if(pLexerState) return pLexerState->cmd; return 0; } //---------------------------------------- // void lexer_setMacroBodyMode(void) { macroBodyPtr = ¯oBody[0]; if(verbose&4) cout << "setting lexer MACROBODY mode\n"; SetMode(MACROBODY); } //---------------------------------------- // void lexer_setDeclarationMode() { if(verbose&4) cout << "setting lexer DECLARATION mode\n"; SetMode(DECLARATION); } //---------------------------------------- static bool isWhiteSpace(char c) { return (c==' ' || c == '\t'); } //---------------------------------------- // getNextMacroParameter(char *s, int l) // // returns true if a macro parameter can be extracted // from yyinput buffer. If it does return true, then the // extracted macro parameter will get copied to // the string 's'. // // This routine will lexically analyze a character string // and split it up into chunks that can be passed to a // macro invocation. It might be possible to add a new // lex state and do this work in the lexer... // // If input stream looks something like: // // expression1, expression2, expression3, ... // // then this function will return true and copies 'expression1' // to 's'. static bool getNextMacroParameter(char *s, int l) { char c; // delete all leading white space. do { c = yyinput(); } while(isWhiteSpace(c)); if(c==',') goto done; unput(c); if(!c) return false; { int nParen=0; bool bDone = false; do { c = yyinput(); if(c == '(') nParen++; if(c == ')' && --nParen < 0 ) bDone = true; if(c==',') break; if(c==0 || c=='\n' ) { bDone=true; unput(c); } else *s++ = c; } while(--l>0 && !bDone); } done: *s=0; return true; } void lexer_InvokeMacro(Macro *m) { if(!m) return; if(verbose &4) cout << "Invoking macro: " << m->name() << endl; theMacroChain.push(m); m->prepareForInvocation(); int i=0; bool bValidParameter = false; do { i++; char s[256]; bValidParameter = getNextMacroParameter(s,sizeof(s)); if(bValidParameter) { m->add_parameter(s); if(verbose &4) cout << "macro param: " << s << endl; } } while (bValidParameter && inParameters()); m->invoke(); } void scanPushMacroState(Macro *m) { gCurrentMacro = m; } void scanPopMacroState() { theMacroChain.pop(); }