#line 2 "exprscan.c" /*------------------------------------------------------------------------- * * exprscan.l * lexical scanner for pgbench backslash commands * * This lexer supports two operating modes: * * In INITIAL state, just parse off whitespace-separated words (this mode * is basically equivalent to strtok(), which is what we used to use). * * In EXPR state, lex for the simple expression syntax of exprparse.y. * * In either mode, stop upon hitting newline or end of string. * * Note that this lexer operates within the framework created by psqlscan.l, * * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/bin/pgbench/exprscan.l * *------------------------------------------------------------------------- */ #include "postgres_fe.h" /* * NB: include exprparse.h only AFTER including pgbench.h, because pgbench.h * contains definitions needed for YYSTYPE. Likewise, pgbench.h must come after * psqlscan_int.h for yyscan_t. */ #include "fe_utils/psqlscan_int.h" #include "pgbench.h" #include "exprparse.h" #line 37 "exprscan.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 6 #define YY_FLEX_SUBMINOR_VERSION 4 #if YY_FLEX_SUBMINOR_VERSION > 0 #define FLEX_BETA #endif #ifdef yy_create_buffer #define expr_yy_create_buffer_ALREADY_DEFINED #else #define yy_create_buffer expr_yy_create_buffer #endif #ifdef yy_delete_buffer #define expr_yy_delete_buffer_ALREADY_DEFINED #else #define yy_delete_buffer expr_yy_delete_buffer #endif #ifdef yy_scan_buffer #define expr_yy_scan_buffer_ALREADY_DEFINED #else #define yy_scan_buffer expr_yy_scan_buffer #endif #ifdef yy_scan_string #define expr_yy_scan_string_ALREADY_DEFINED #else #define yy_scan_string expr_yy_scan_string #endif #ifdef yy_scan_bytes #define expr_yy_scan_bytes_ALREADY_DEFINED #else #define yy_scan_bytes expr_yy_scan_bytes #endif #ifdef yy_init_buffer #define expr_yy_init_buffer_ALREADY_DEFINED #else #define yy_init_buffer expr_yy_init_buffer #endif #ifdef yy_flush_buffer #define expr_yy_flush_buffer_ALREADY_DEFINED #else #define yy_flush_buffer expr_yy_flush_buffer #endif #ifdef yy_load_buffer_state #define expr_yy_load_buffer_state_ALREADY_DEFINED #else #define yy_load_buffer_state expr_yy_load_buffer_state #endif #ifdef yy_switch_to_buffer #define expr_yy_switch_to_buffer_ALREADY_DEFINED #else #define yy_switch_to_buffer expr_yy_switch_to_buffer #endif #ifdef yypush_buffer_state #define expr_yypush_buffer_state_ALREADY_DEFINED #else #define yypush_buffer_state expr_yypush_buffer_state #endif #ifdef yypop_buffer_state #define expr_yypop_buffer_state_ALREADY_DEFINED #else #define yypop_buffer_state expr_yypop_buffer_state #endif #ifdef yyensure_buffer_stack #define expr_yyensure_buffer_stack_ALREADY_DEFINED #else #define yyensure_buffer_stack expr_yyensure_buffer_stack #endif #ifdef yylex #define expr_yylex_ALREADY_DEFINED #else #define yylex expr_yylex #endif #ifdef yyrestart #define expr_yyrestart_ALREADY_DEFINED #else #define yyrestart expr_yyrestart #endif #ifdef yylex_init #define expr_yylex_init_ALREADY_DEFINED #else #define yylex_init expr_yylex_init #endif #ifdef yylex_init_extra #define expr_yylex_init_extra_ALREADY_DEFINED #else #define yylex_init_extra expr_yylex_init_extra #endif #ifdef yylex_destroy #define expr_yylex_destroy_ALREADY_DEFINED #else #define yylex_destroy expr_yylex_destroy #endif #ifdef yyget_debug #define expr_yyget_debug_ALREADY_DEFINED #else #define yyget_debug expr_yyget_debug #endif #ifdef yyset_debug #define expr_yyset_debug_ALREADY_DEFINED #else #define yyset_debug expr_yyset_debug #endif #ifdef yyget_extra #define expr_yyget_extra_ALREADY_DEFINED #else #define yyget_extra expr_yyget_extra #endif #ifdef yyset_extra #define expr_yyset_extra_ALREADY_DEFINED #else #define yyset_extra expr_yyset_extra #endif #ifdef yyget_in #define expr_yyget_in_ALREADY_DEFINED #else #define yyget_in expr_yyget_in #endif #ifdef yyset_in #define expr_yyset_in_ALREADY_DEFINED #else #define yyset_in expr_yyset_in #endif #ifdef yyget_out #define expr_yyget_out_ALREADY_DEFINED #else #define yyget_out expr_yyget_out #endif #ifdef yyset_out #define expr_yyset_out_ALREADY_DEFINED #else #define yyset_out expr_yyset_out #endif #ifdef yyget_leng #define expr_yyget_leng_ALREADY_DEFINED #else #define yyget_leng expr_yyget_leng #endif #ifdef yyget_text #define expr_yyget_text_ALREADY_DEFINED #else #define yyget_text expr_yyget_text #endif #ifdef yyget_lineno #define expr_yyget_lineno_ALREADY_DEFINED #else #define yyget_lineno expr_yyget_lineno #endif #ifdef yyset_lineno #define expr_yyset_lineno_ALREADY_DEFINED #else #define yyset_lineno expr_yyset_lineno #endif #ifdef yyget_column #define expr_yyget_column_ALREADY_DEFINED #else #define yyget_column expr_yyget_column #endif #ifdef yyset_column #define expr_yyset_column_ALREADY_DEFINED #else #define yyset_column expr_yyset_column #endif #ifdef yywrap #define expr_yywrap_ALREADY_DEFINED #else #define yywrap expr_yywrap #endif #ifdef yyget_lval #define expr_yyget_lval_ALREADY_DEFINED #else #define yyget_lval expr_yyget_lval #endif #ifdef yyset_lval #define expr_yyset_lval_ALREADY_DEFINED #else #define yyset_lval expr_yyset_lval #endif #ifdef yyalloc #define expr_yyalloc_ALREADY_DEFINED #else #define yyalloc expr_yyalloc #endif #ifdef yyrealloc #define expr_yyrealloc_ALREADY_DEFINED #else #define yyrealloc expr_yyrealloc #endif #ifdef yyfree #define expr_yyfree_ALREADY_DEFINED #else #define yyfree expr_yyfree #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 /* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, * if you want the limit (max/min) macros for int types. */ #ifndef __STDC_LIMIT_MACROS #define __STDC_LIMIT_MACROS 1 #endif #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; /* 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 #ifndef SIZE_MAX #define SIZE_MAX (~(size_t)0) #endif #endif /* ! C99 */ #endif /* ! FLEXINT_H */ /* begin standard C++ headers. */ /* TODO: this is always defined, so inline it */ #define yyconst const #if defined(__GNUC__) && __GNUC__ >= 3 #define yynoreturn __attribute__((__noreturn__)) #else #define yynoreturn #endif /* Returned upon end-of-file. */ #define YY_NULL 0 /* Promotes a possibly negative, possibly signed char to an * integer in range [0..255] for use as an array index. */ #define YY_SC_TO_UI(c) ((YY_CHAR) (c)) /* An opaque pointer. */ #ifndef YY_TYPEDEF_YY_SCANNER_T #define YY_TYPEDEF_YY_SCANNER_T typedef void* yyscan_t; #endif /* For convenience, these vars (plus the bison vars far below) are macros in the reentrant scanner. */ #define yyin yyg->yyin_r #define yyout yyg->yyout_r #define yyextra yyg->yyextra_r #define yyleng yyg->yyleng_r #define yytext yyg->yytext_r #define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno) #define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column) #define yy_flex_debug yyg->yy_flex_debug_r /* 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 yyg->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 ((yyg->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 , yyscanner ) #define YY_END_OF_BUFFER_CHAR 0 /* Size of default input buffer. */ #ifndef YY_BUF_SIZE #ifdef __ia64__ /* On IA-64, the buffer size is 16k, not 8k. * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case. * Ditto for the __ia64__ case accordingly. */ #define YY_BUF_SIZE 32768 #else #define YY_BUF_SIZE 16384 #endif /* __ia64__ */ #endif /* The state buf must be large enough to hold one state per character in the main buffer. */ #define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) #ifndef YY_TYPEDEF_YY_BUFFER_STATE #define YY_TYPEDEF_YY_BUFFER_STATE typedef struct yy_buffer_state *YY_BUFFER_STATE; #endif #ifndef YY_TYPEDEF_YY_SIZE_T #define YY_TYPEDEF_YY_SIZE_T typedef size_t yy_size_t; #endif #define EOB_ACT_CONTINUE_SCAN 0 #define EOB_ACT_END_OF_FILE 1 #define EOB_ACT_LAST_MATCH 2 #define YY_LESS_LINENO(n) #define YY_LINENO_REWIND_TO(ptr) /* 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 = yyg->yy_hold_char; \ YY_RESTORE_YY_MORE_OFFSET \ yyg->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, yyg->yytext_ptr , yyscanner ) #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. */ int 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 */ /* 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 ( yyg->yy_buffer_stack \ ? yyg->yy_buffer_stack[yyg->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 yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] void yyrestart ( FILE *input_file , yyscan_t yyscanner ); void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner ); YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size , yyscan_t yyscanner ); void yy_delete_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner ); void yy_flush_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner ); void yypush_buffer_state ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner ); void yypop_buffer_state ( yyscan_t yyscanner ); static void yyensure_buffer_stack ( yyscan_t yyscanner ); static void yy_load_buffer_state ( yyscan_t yyscanner ); static void yy_init_buffer ( YY_BUFFER_STATE b, FILE *file , yyscan_t yyscanner ); #define YY_FLUSH_BUFFER yy_flush_buffer( YY_CURRENT_BUFFER , yyscanner) YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size , yyscan_t yyscanner ); YY_BUFFER_STATE yy_scan_string ( const char *yy_str , yyscan_t yyscanner ); YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len , yyscan_t yyscanner ); void *yyalloc ( yy_size_t , yyscan_t yyscanner ); void *yyrealloc ( void *, yy_size_t , yyscan_t yyscanner ); void yyfree ( void * , yyscan_t yyscanner ); #define yy_new_buffer yy_create_buffer #define yy_set_interactive(is_interactive) \ { \ if ( ! YY_CURRENT_BUFFER ){ \ yyensure_buffer_stack (yyscanner); \ YY_CURRENT_BUFFER_LVALUE = \ yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); \ } \ YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ } #define yy_set_bol(at_bol) \ { \ if ( ! YY_CURRENT_BUFFER ){\ yyensure_buffer_stack (yyscanner); \ YY_CURRENT_BUFFER_LVALUE = \ yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); \ } \ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ } #define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) /* Begin user sect3 */ #define expr_yywrap(yyscanner) (/*CONSTCOND*/1) #define YY_SKIP_YYWRAP typedef flex_uint8_t YY_CHAR; typedef int yy_state_type; #define yytext_ptr yytext_r static yy_state_type yy_get_previous_state ( yyscan_t yyscanner ); static yy_state_type yy_try_NUL_trans ( yy_state_type current_state , yyscan_t yyscanner); static int yy_get_next_buffer ( yyscan_t yyscanner ); static void yynoreturn yy_fatal_error ( const char* msg , yyscan_t yyscanner ); /* Done after the current pattern has been matched and before the * corresponding action - sets up yytext. */ #define YY_DO_BEFORE_ACTION \ yyg->yytext_ptr = yy_bp; \ yyleng = (int) (yy_cp - yy_bp); \ yyg->yy_hold_char = *yy_cp; \ *yy_cp = '\0'; \ yyg->yy_c_buf_p = yy_cp; #define YY_NUM_RULES 51 #define YY_END_OF_BUFFER 52 /* 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 const flex_int16_t yy_accept[129] = { 0, 0, 0, 0, 0, 52, 1, 3, 5, 1, 50, 47, 49, 50, 22, 10, 21, 24, 25, 8, 6, 26, 7, 50, 9, 43, 43, 50, 18, 11, 19, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 50, 20, 23, 1, 1, 3, 4, 0, 47, 13, 45, 44, 43, 0, 43, 38, 16, 14, 12, 15, 17, 46, 46, 46, 46, 46, 46, 30, 46, 46, 28, 46, 46, 46, 48, 0, 2, 0, 0, 44, 0, 44, 43, 27, 46, 46, 37, 46, 46, 29, 46, 46, 46, 46, 0, 45, 43, 33, 36, 46, 46, 46, 39, 35, 40, 34, 43, 41, 46, 46, 43, 31, 46, 43, 32, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 42, 0 } ; static const YY_CHAR yy_ec[256] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 2, 2, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 5, 1, 6, 1, 7, 8, 1, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 1, 28, 29, 30, 1, 1, 31, 32, 33, 34, 35, 36, 32, 37, 38, 32, 32, 39, 32, 40, 41, 32, 32, 42, 43, 44, 45, 32, 46, 32, 32, 32, 1, 47, 1, 1, 32, 1, 31, 32, 33, 34, 35, 36, 32, 37, 38, 32, 32, 39, 32, 40, 41, 32, 32, 42, 43, 44, 45, 32, 46, 32, 32, 32, 1, 48, 1, 49, 1, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32 } ; static const YY_CHAR yy_meta[50] = { 0, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 3, 1, 3, 4, 1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 6, 6, 6, 6, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1 } ; static const flex_int16_t yy_base[138] = { 0, 0, 3, 50, 0, 204, 156, 6, 205, 97, 205, 7, 205, 173, 205, 205, 205, 205, 205, 205, 205, 205, 205, 0, 205, 0, 1, 0, 0, 205, 2, 161, 0, 169, 0, 168, 155, 0, 155, 0, 159, 9, 205, 205, 148, 99, 15, 205, 191, 19, 205, 158, 157, 172, 10, 171, 0, 205, 205, 205, 205, 205, 0, 155, 145, 144, 152, 146, 144, 139, 143, 0, 146, 135, 143, 205, 172, 205, 169, 13, 128, 32, 0, 14, 0, 120, 110, 0, 100, 97, 101, 101, 99, 103, 97, 92, 0, 29, 0, 0, 101, 95, 88, 0, 0, 0, 0, 19, 0, 93, 92, 103, 0, 74, 88, 0, 89, 91, 92, 93, 97, 100, 101, 104, 102, 111, 110, 7, 205, 146, 153, 9, 157, 160, 163, 166, 171, 174 } ; static const flex_int16_t yy_def[138] = { 0, 129, 129, 128, 3, 128, 130, 128, 128, 130, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 131, 128, 132, 132, 133, 128, 128, 128, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 128, 128, 128, 130, 130, 128, 128, 128, 128, 128, 131, 135, 26, 136, 26, 133, 128, 128, 128, 128, 128, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 128, 128, 128, 128, 137, 135, 136, 81, 26, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 134, 137, 95, 26, 134, 134, 134, 134, 134, 134, 134, 134, 134, 26, 134, 134, 134, 26, 134, 134, 26, 134, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 0, 128, 128, 128, 128, 128, 128, 128, 128, 128 } ; static const flex_int16_t yy_nxt[255] = { 0, 128, 7, 8, 7, 7, 8, 7, 46, 49, 46, 49, 75, 76, 51, 52, 52, 46, 128, 46, 55, 49, 81, 49, 81, 95, 53, 95, 57, 58, 59, 60, 61, 53, 97, 54, 54, 72, 53, 65, 66, 69, 73, 111, 128, 70, 128, 9, 53, 107, 9, 10, 11, 12, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 27, 28, 29, 30, 31, 32, 33, 32, 34, 35, 32, 36, 32, 37, 38, 32, 32, 39, 32, 40, 41, 42, 43, 47, 48, 77, 78, 128, 116, 128, 53, 53, 117, 53, 53, 53, 115, 118, 120, 53, 119, 121, 53, 53, 53, 114, 53, 122, 123, 124, 125, 126, 53, 53, 113, 112, 110, 109, 127, 108, 106, 105, 104, 103, 102, 101, 100, 45, 99, 45, 6, 6, 6, 6, 6, 6, 6, 44, 98, 44, 44, 44, 44, 44, 53, 53, 54, 53, 56, 56, 56, 62, 62, 62, 80, 77, 80, 82, 75, 82, 96, 94, 96, 93, 92, 91, 90, 89, 88, 87, 86, 85, 84, 83, 53, 54, 79, 47, 45, 74, 71, 68, 67, 64, 63, 50, 45, 128, 5, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } ; static const flex_int16_t yy_chk[255] = { 0, 0, 1, 1, 1, 2, 2, 2, 7, 11, 7, 11, 41, 41, 131, 25, 26, 46, 0, 46, 26, 49, 54, 49, 54, 79, 127, 79, 28, 28, 28, 30, 30, 83, 83, 25, 26, 39, 107, 34, 34, 37, 39, 107, 81, 37, 81, 1, 97, 97, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 9, 9, 45, 45, 95, 114, 95, 114, 116, 116, 117, 118, 119, 113, 117, 119, 120, 118, 120, 121, 122, 124, 111, 123, 121, 122, 123, 124, 125, 126, 125, 110, 109, 102, 101, 126, 100, 94, 93, 92, 91, 90, 89, 88, 9, 86, 45, 129, 129, 129, 129, 129, 129, 129, 130, 85, 130, 130, 130, 130, 130, 132, 132, 80, 132, 133, 133, 133, 134, 134, 134, 135, 78, 135, 136, 76, 136, 137, 74, 137, 73, 72, 70, 69, 68, 67, 66, 65, 64, 63, 55, 53, 52, 51, 48, 44, 40, 38, 36, 35, 33, 31, 13, 6, 5, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } ; /* 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 #line 1 "exprscan.l" #line 38 "exprscan.l" /* context information for reporting errors in expressions */ static const char *expr_source = NULL; static int expr_lineno = 0; static int expr_start_offset = 0; static const char *expr_command = NULL; /* indicates whether last yylex() call read a newline */ static bool last_was_newline = false; /* * Work around a bug in flex 2.5.35: it emits a couple of functions that * it forgets to emit declarations for. Since we use -Wmissing-prototypes, * this would cause warnings. Providing our own declarations should be * harmless even when the bug gets fixed. */ extern int expr_yyget_column(yyscan_t yyscanner); extern void expr_yyset_column(int column_no, yyscan_t yyscanner); /* LCOV_EXCL_START */ #line 798 "exprscan.c" /* Except for the prefix, these options should match psqlscan.l */ #define YY_NO_INPUT 1 /* Character classes */ /* {space} + {nonspace} + {newline} should cover all characters */ /* Line continuation marker */ /* case insensitive keywords */ /* Exclusive states */ #line 807 "exprscan.c" #define INITIAL 0 #define EXPR 1 #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 /* Holds the entire state of the reentrant scanner. */ struct yyguts_t { /* User-defined. Not touched by flex. */ YY_EXTRA_TYPE yyextra_r; /* The rest are the same as the globals declared in the non-reentrant scanner. */ FILE *yyin_r, *yyout_r; size_t yy_buffer_stack_top; /**< index of top of stack. */ size_t yy_buffer_stack_max; /**< capacity of stack. */ YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */ char yy_hold_char; int yy_n_chars; int yyleng_r; char *yy_c_buf_p; int yy_init; int yy_start; int yy_did_buffer_switch_on_eof; int yy_start_stack_ptr; int yy_start_stack_depth; int *yy_start_stack; yy_state_type yy_last_accepting_state; char* yy_last_accepting_cpos; int yylineno_r; int yy_flex_debug_r; char *yytext_r; int yy_more_flag; int yy_more_len; YYSTYPE * yylval_r; }; /* end struct yyguts_t */ static int yy_init_globals ( yyscan_t yyscanner ); /* This must go here because YYSTYPE and YYLTYPE are included * from bison output in section 1.*/ # define yylval yyg->yylval_r int yylex_init (yyscan_t* scanner); int yylex_init_extra ( YY_EXTRA_TYPE user_defined, yyscan_t* scanner); /* Accessor methods to globals. These are made visible to non-reentrant scanners for convenience. */ int yylex_destroy ( yyscan_t yyscanner ); int yyget_debug ( yyscan_t yyscanner ); void yyset_debug ( int debug_flag , yyscan_t yyscanner ); YY_EXTRA_TYPE yyget_extra ( yyscan_t yyscanner ); void yyset_extra ( YY_EXTRA_TYPE user_defined , yyscan_t yyscanner ); FILE *yyget_in ( yyscan_t yyscanner ); void yyset_in ( FILE * _in_str , yyscan_t yyscanner ); FILE *yyget_out ( yyscan_t yyscanner ); void yyset_out ( FILE * _out_str , yyscan_t yyscanner ); int yyget_leng ( yyscan_t yyscanner ); char *yyget_text ( yyscan_t yyscanner ); int yyget_lineno ( yyscan_t yyscanner ); void yyset_lineno ( int _line_number , yyscan_t yyscanner ); int yyget_column ( yyscan_t yyscanner ); void yyset_column ( int _column_no , yyscan_t yyscanner ); YYSTYPE * yyget_lval ( yyscan_t yyscanner ); void yyset_lval ( YYSTYPE * yylval_param , yyscan_t yyscanner ); /* Macros after this point can all be overridden by user definitions in * section 1. */ #ifndef YY_SKIP_YYWRAP #ifdef __cplusplus extern "C" int yywrap ( yyscan_t yyscanner ); #else extern int yywrap ( yyscan_t yyscanner ); #endif #endif #ifndef YY_NO_UNPUT #endif #ifndef yytext_ptr static void yy_flex_strncpy ( char *, const char *, int , yyscan_t yyscanner); #endif #ifdef YY_NEED_STRLEN static int yy_flex_strlen ( const char * , yyscan_t yyscanner); #endif #ifndef YY_NO_INPUT #ifdef __cplusplus static int yyinput ( yyscan_t yyscanner ); #else static int input ( yyscan_t yyscanner ); #endif #endif /* Amount of stuff to slurp up with each read. */ #ifndef YY_READ_BUF_SIZE #ifdef __ia64__ /* On IA-64, the buffer size is 16k, not 8k */ #define YY_READ_BUF_SIZE 16384 #else #define YY_READ_BUF_SIZE 8192 #endif /* __ia64__ */ #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 do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0) #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 = '*'; \ int 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 = (int) fread(buf, 1, (yy_size_t) 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 , yyscanner) #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 \ (YYSTYPE * yylval_param , yyscan_t yyscanner); #define YY_DECL int yylex \ (YYSTYPE * yylval_param , yyscan_t yyscanner) #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 /*LINTED*/break; #endif #define YY_RULE_SETUP \ YY_USER_ACTION /** The main scanner function which does all the work. */ YY_DECL { yy_state_type yy_current_state; char *yy_cp, *yy_bp; int yy_act; struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; yylval = yylval_param; if ( !yyg->yy_init ) { yyg->yy_init = 1; #ifdef YY_USER_INIT YY_USER_INIT; #endif if ( ! yyg->yy_start ) yyg->yy_start = 1; /* first start state */ if ( ! yyin ) yyin = stdin; if ( ! yyout ) yyout = stdout; if ( ! YY_CURRENT_BUFFER ) { yyensure_buffer_stack (yyscanner); YY_CURRENT_BUFFER_LVALUE = yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); } yy_load_buffer_state( yyscanner ); } { #line 103 "exprscan.l" #line 107 "exprscan.l" /* Declare some local variables inside yylex(), for convenience */ PsqlScanState cur_state = yyextra; /* * Force flex into the state indicated by start_state. This has a * couple of purposes: it lets some of the functions below set a new * starting state without ugly direct access to flex variables, and it * allows us to transition from one flex lexer to another so that we * can lex different parts of the source string using separate lexers. */ BEGIN(cur_state->start_state); /* Reset was-newline flag */ last_was_newline = false; /* INITIAL state */ #line 1103 "exprscan.c" while ( /*CONSTCOND*/1 ) /* loops until end-of-file is reached */ { yy_cp = yyg->yy_c_buf_p; /* Support of yytext. */ *yy_cp = yyg->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 = yyg->yy_start; yy_match: do { YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ; if ( yy_accept[yy_current_state] ) { yyg->yy_last_accepting_state = yy_current_state; yyg->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 >= 129 ) yy_c = yy_meta[yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; ++yy_cp; } while ( yy_current_state != 128 ); yy_cp = yyg->yy_last_accepting_cpos; yy_current_state = yyg->yy_last_accepting_state; yy_find_action: 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 = yyg->yy_hold_char; yy_cp = yyg->yy_last_accepting_cpos; yy_current_state = yyg->yy_last_accepting_state; goto yy_find_action; case 1: YY_RULE_SETUP #line 125 "exprscan.l" { /* Found a word, emit and return it */ psqlscan_emit(cur_state, yytext, yyleng); return 1; } YY_BREAK /* * We need this rule to avoid returning "word\" instead of recognizing * a continuation marker just after a word: */ case 2: /* rule 2 can match eol */ YY_RULE_SETUP #line 135 "exprscan.l" { /* Found "word\\\r?\n", emit and return just "word" */ int wordlen = yyleng - 2; if (yytext[wordlen] == '\r') wordlen--; Assert(yytext[wordlen] == '\\'); psqlscan_emit(cur_state, yytext, wordlen); return 1; } YY_BREAK case 3: YY_RULE_SETUP #line 145 "exprscan.l" { /* ignore */ } YY_BREAK case 4: /* rule 4 can match eol */ YY_RULE_SETUP #line 147 "exprscan.l" { /* ignore */ } YY_BREAK case 5: /* rule 5 can match eol */ YY_RULE_SETUP #line 149 "exprscan.l" { /* report end of command */ last_was_newline = true; return 0; } YY_BREAK /* EXPR state */ case 6: YY_RULE_SETUP #line 159 "exprscan.l" { return '+'; } YY_BREAK case 7: YY_RULE_SETUP #line 160 "exprscan.l" { return '-'; } YY_BREAK case 8: YY_RULE_SETUP #line 161 "exprscan.l" { return '*'; } YY_BREAK case 9: YY_RULE_SETUP #line 162 "exprscan.l" { return '/'; } YY_BREAK case 10: YY_RULE_SETUP #line 163 "exprscan.l" { return '%'; } /* C version, also in Pg SQL */ YY_BREAK case 11: YY_RULE_SETUP #line 164 "exprscan.l" { return '='; } YY_BREAK case 12: YY_RULE_SETUP #line 165 "exprscan.l" { return NE_OP; } YY_BREAK case 13: YY_RULE_SETUP #line 166 "exprscan.l" { return NE_OP; } /* C version, also in Pg SQL */ YY_BREAK case 14: YY_RULE_SETUP #line 167 "exprscan.l" { return LE_OP; } YY_BREAK case 15: YY_RULE_SETUP #line 168 "exprscan.l" { return GE_OP; } YY_BREAK case 16: YY_RULE_SETUP #line 169 "exprscan.l" { return LS_OP; } YY_BREAK case 17: YY_RULE_SETUP #line 170 "exprscan.l" { return RS_OP; } YY_BREAK case 18: YY_RULE_SETUP #line 171 "exprscan.l" { return '<'; } YY_BREAK case 19: YY_RULE_SETUP #line 172 "exprscan.l" { return '>'; } YY_BREAK case 20: YY_RULE_SETUP #line 173 "exprscan.l" { return '|'; } YY_BREAK case 21: YY_RULE_SETUP #line 174 "exprscan.l" { return '&'; } YY_BREAK case 22: YY_RULE_SETUP #line 175 "exprscan.l" { return '#'; } YY_BREAK case 23: YY_RULE_SETUP #line 176 "exprscan.l" { return '~'; } YY_BREAK case 24: YY_RULE_SETUP #line 178 "exprscan.l" { return '('; } YY_BREAK case 25: YY_RULE_SETUP #line 179 "exprscan.l" { return ')'; } YY_BREAK case 26: YY_RULE_SETUP #line 180 "exprscan.l" { return ','; } YY_BREAK case 27: YY_RULE_SETUP #line 182 "exprscan.l" { return AND_OP; } YY_BREAK case 28: YY_RULE_SETUP #line 183 "exprscan.l" { return OR_OP; } YY_BREAK case 29: YY_RULE_SETUP #line 184 "exprscan.l" { return NOT_OP; } YY_BREAK case 30: YY_RULE_SETUP #line 185 "exprscan.l" { return IS_OP; } YY_BREAK case 31: YY_RULE_SETUP #line 186 "exprscan.l" { return ISNULL_OP; } YY_BREAK case 32: YY_RULE_SETUP #line 187 "exprscan.l" { return NOTNULL_OP; } YY_BREAK case 33: YY_RULE_SETUP #line 189 "exprscan.l" { return CASE_KW; } YY_BREAK case 34: YY_RULE_SETUP #line 190 "exprscan.l" { return WHEN_KW; } YY_BREAK case 35: YY_RULE_SETUP #line 191 "exprscan.l" { return THEN_KW; } YY_BREAK case 36: YY_RULE_SETUP #line 192 "exprscan.l" { return ELSE_KW; } YY_BREAK case 37: YY_RULE_SETUP #line 193 "exprscan.l" { return END_KW; } YY_BREAK case 38: YY_RULE_SETUP #line 195 "exprscan.l" { yylval->str = pg_strdup(yytext + 1); return VARIABLE; } YY_BREAK case 39: YY_RULE_SETUP #line 200 "exprscan.l" { return NULL_CONST; } YY_BREAK case 40: YY_RULE_SETUP #line 201 "exprscan.l" { yylval->bval = true; return BOOLEAN_CONST; } YY_BREAK case 41: YY_RULE_SETUP #line 205 "exprscan.l" { yylval->bval = false; return BOOLEAN_CONST; } YY_BREAK case 42: YY_RULE_SETUP #line 209 "exprscan.l" { /* * Special handling for PG_INT64_MIN, which can't * accurately be represented here, as the minus sign is * lexed separately and INT64_MIN can't be represented as * a positive integer. */ return MAXINT_PLUS_ONE_CONST; } YY_BREAK case 43: YY_RULE_SETUP #line 218 "exprscan.l" { if (!strtoint64(yytext, true, &yylval->ival)) expr_yyerror_more(yyscanner, "bigint constant overflow", strdup(yytext)); return INTEGER_CONST; } YY_BREAK case 44: YY_RULE_SETUP #line 224 "exprscan.l" { if (!strtodouble(yytext, true, &yylval->dval)) expr_yyerror_more(yyscanner, "double constant overflow", strdup(yytext)); return DOUBLE_CONST; } YY_BREAK case 45: YY_RULE_SETUP #line 230 "exprscan.l" { if (!strtodouble(yytext, true, &yylval->dval)) expr_yyerror_more(yyscanner, "double constant overflow", strdup(yytext)); return DOUBLE_CONST; } YY_BREAK case 46: YY_RULE_SETUP #line 236 "exprscan.l" { yylval->str = pg_strdup(yytext); return FUNCTION; } YY_BREAK case 47: YY_RULE_SETUP #line 241 "exprscan.l" { /* ignore */ } YY_BREAK case 48: /* rule 48 can match eol */ YY_RULE_SETUP #line 243 "exprscan.l" { /* ignore */ } YY_BREAK case 49: /* rule 49 can match eol */ YY_RULE_SETUP #line 245 "exprscan.l" { /* report end of command */ last_was_newline = true; return 0; } YY_BREAK case 50: YY_RULE_SETUP #line 251 "exprscan.l" { /* * must strdup yytext so that expr_yyerror_more doesn't * change it while finding end of line */ expr_yyerror_more(yyscanner, "unexpected character", pg_strdup(yytext)); /* NOTREACHED, syntax_error calls exit() */ return 0; } YY_BREAK case YY_STATE_EOF(INITIAL): case YY_STATE_EOF(EXPR): #line 264 "exprscan.l" { if (cur_state->buffer_stack == NULL) return 0; /* end of input reached */ /* * We were expanding a variable, so pop the inclusion * stack and keep lexing */ psqlscan_pop_buffer_stack(cur_state); psqlscan_select_top_buffer(cur_state); } YY_BREAK case 51: YY_RULE_SETUP #line 276 "exprscan.l" YY_FATAL_ERROR( "flex scanner jammed" ); YY_BREAK #line 1502 "exprscan.c" case YY_END_OF_BUFFER: { /* Amount of text matched not including the EOB char. */ int yy_amount_of_matched_text = (int) (yy_cp - yyg->yytext_ptr) - 1; /* Undo the effects of YY_DO_BEFORE_ACTION. */ *yy_cp = yyg->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. */ yyg->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 ( yyg->yy_c_buf_p <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] ) { /* This was really a NUL. */ yy_state_type yy_next_state; yyg->yy_c_buf_p = yyg->yytext_ptr + yy_amount_of_matched_text; yy_current_state = yy_get_previous_state( yyscanner ); /* 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 , yyscanner); yy_bp = yyg->yytext_ptr + YY_MORE_ADJ; if ( yy_next_state ) { /* Consume the NUL. */ yy_cp = ++yyg->yy_c_buf_p; yy_current_state = yy_next_state; goto yy_match; } else { yy_cp = yyg->yy_last_accepting_cpos; yy_current_state = yyg->yy_last_accepting_state; goto yy_find_action; } } else switch ( yy_get_next_buffer( yyscanner ) ) { case EOB_ACT_END_OF_FILE: { yyg->yy_did_buffer_switch_on_eof = 0; if ( yywrap( yyscanner ) ) { /* 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. */ yyg->yy_c_buf_p = yyg->yytext_ptr + YY_MORE_ADJ; yy_act = YY_STATE_EOF(YY_START); goto do_action; } else { if ( ! yyg->yy_did_buffer_switch_on_eof ) YY_NEW_FILE; } break; } case EOB_ACT_CONTINUE_SCAN: yyg->yy_c_buf_p = yyg->yytext_ptr + yy_amount_of_matched_text; yy_current_state = yy_get_previous_state( yyscanner ); yy_cp = yyg->yy_c_buf_p; yy_bp = yyg->yytext_ptr + YY_MORE_ADJ; goto yy_match; case EOB_ACT_LAST_MATCH: yyg->yy_c_buf_p = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars]; yy_current_state = yy_get_previous_state( yyscanner ); yy_cp = yyg->yy_c_buf_p; yy_bp = yyg->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 user's declarations */ } /* 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 (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; char *source = yyg->yytext_ptr; int number_to_move, i; int ret_val; if ( yyg->yy_c_buf_p > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->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 ( yyg->yy_c_buf_p - yyg->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) (yyg->yy_c_buf_p - yyg->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 = yyg->yy_n_chars = 0; else { int 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. */ /* just a shorter name for the current buffer */ YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; int yy_c_buf_p_offset = (int) (yyg->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. */ yyrealloc( (void *) b->yy_ch_buf, (yy_size_t) (b->yy_buf_size + 2) , yyscanner ); } else /* Can't grow it, we don't own it. */ b->yy_ch_buf = NULL; if ( ! b->yy_ch_buf ) YY_FATAL_ERROR( "fatal error - scanner input buffer overflow" ); yyg->yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset]; num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; } 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]), yyg->yy_n_chars, num_to_read ); YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars; } if ( yyg->yy_n_chars == 0 ) { if ( number_to_move == YY_MORE_ADJ ) { ret_val = EOB_ACT_END_OF_FILE; yyrestart( yyin , yyscanner); } 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; if ((yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { /* Extend the array by 50%, plus the number we really need. */ int new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1); YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc( (void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf, (yy_size_t) new_size , yyscanner ); if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); /* "- 2" to take care of EOB's */ YY_CURRENT_BUFFER_LVALUE->yy_buf_size = (int) (new_size - 2); } yyg->yy_n_chars += number_to_move; YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] = YY_END_OF_BUFFER_CHAR; YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR; yyg->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 (yyscan_t yyscanner) { yy_state_type yy_current_state; char *yy_cp; struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; yy_current_state = yyg->yy_start; for ( yy_cp = yyg->yytext_ptr + YY_MORE_ADJ; yy_cp < yyg->yy_c_buf_p; ++yy_cp ) { YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); if ( yy_accept[yy_current_state] ) { yyg->yy_last_accepting_state = yy_current_state; yyg->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 >= 129 ) yy_c = yy_meta[yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + 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 ); */ static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state , yyscan_t yyscanner) { int yy_is_jam; struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* This var may be unused depending upon options. */ char *yy_cp = yyg->yy_c_buf_p; YY_CHAR yy_c = 1; if ( yy_accept[yy_current_state] ) { yyg->yy_last_accepting_state = yy_current_state; yyg->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 >= 129 ) yy_c = yy_meta[yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; yy_is_jam = (yy_current_state == 128); (void)yyg; return yy_is_jam ? 0 : yy_current_state; } #ifndef YY_NO_UNPUT #endif #ifndef YY_NO_INPUT #ifdef __cplusplus static int yyinput (yyscan_t yyscanner) #else static int input (yyscan_t yyscanner) #endif { int c; struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; *yyg->yy_c_buf_p = yyg->yy_hold_char; if ( *yyg->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 ( yyg->yy_c_buf_p < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] ) /* This was really a NUL. */ *yyg->yy_c_buf_p = '\0'; else { /* need more input */ int offset = (int) (yyg->yy_c_buf_p - yyg->yytext_ptr); ++yyg->yy_c_buf_p; switch ( yy_get_next_buffer( yyscanner ) ) { 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 , yyscanner); /*FALLTHROUGH*/ case EOB_ACT_END_OF_FILE: { if ( yywrap( yyscanner ) ) return 0; if ( ! yyg->yy_did_buffer_switch_on_eof ) YY_NEW_FILE; #ifdef __cplusplus return yyinput(yyscanner); #else return input(yyscanner); #endif } case EOB_ACT_CONTINUE_SCAN: yyg->yy_c_buf_p = yyg->yytext_ptr + offset; break; } } } c = *(unsigned char *) yyg->yy_c_buf_p; /* cast for 8-bit char's */ *yyg->yy_c_buf_p = '\0'; /* preserve yytext */ yyg->yy_hold_char = *++yyg->yy_c_buf_p; return c; } #endif /* ifndef YY_NO_INPUT */ /** Immediately switch to a different input stream. * @param input_file A readable stream. * @param yyscanner The scanner object. * @note This function does not reset the start condition to @c INITIAL . */ void yyrestart (FILE * input_file , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; if ( ! YY_CURRENT_BUFFER ){ yyensure_buffer_stack (yyscanner); YY_CURRENT_BUFFER_LVALUE = yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); } yy_init_buffer( YY_CURRENT_BUFFER, input_file , yyscanner); yy_load_buffer_state( yyscanner ); } /** Switch to a different input buffer. * @param new_buffer The new input buffer. * @param yyscanner The scanner object. */ void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* TODO. We should be able to replace this entire function body * with * yypop_buffer_state(); * yypush_buffer_state(new_buffer); */ yyensure_buffer_stack (yyscanner); if ( YY_CURRENT_BUFFER == new_buffer ) return; if ( YY_CURRENT_BUFFER ) { /* Flush out information for old buffer. */ *yyg->yy_c_buf_p = yyg->yy_hold_char; YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p; YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars; } YY_CURRENT_BUFFER_LVALUE = new_buffer; yy_load_buffer_state( yyscanner ); /* 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. */ yyg->yy_did_buffer_switch_on_eof = 1; } static void yy_load_buffer_state (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; yyg->yytext_ptr = yyg->yy_c_buf_p = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; yyg->yy_hold_char = *yyg->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. * @param yyscanner The scanner object. * @return the allocated buffer state. */ YY_BUFFER_STATE yy_create_buffer (FILE * file, int size , yyscan_t yyscanner) { YY_BUFFER_STATE b; b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) , yyscanner ); 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( (yy_size_t) (b->yy_buf_size + 2) , yyscanner ); 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 , yyscanner); return b; } /** Destroy the buffer. * @param b a buffer created with yy_create_buffer() * @param yyscanner The scanner object. */ void yy_delete_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; 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 , yyscanner ); yyfree( (void *) b , yyscanner ); } /* 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 , yyscan_t yyscanner) { int oerrno = errno; struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; yy_flush_buffer( b , yyscanner); 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 = 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. * @param yyscanner The scanner object. */ void yy_flush_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; 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( yyscanner ); } /** 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. * @param yyscanner The scanner object. */ void yypush_buffer_state (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; if (new_buffer == NULL) return; yyensure_buffer_stack(yyscanner); /* This block is copied from yy_switch_to_buffer. */ if ( YY_CURRENT_BUFFER ) { /* Flush out information for old buffer. */ *yyg->yy_c_buf_p = yyg->yy_hold_char; YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p; YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars; } /* Only push if top exists. Otherwise, replace top. */ if (YY_CURRENT_BUFFER) yyg->yy_buffer_stack_top++; YY_CURRENT_BUFFER_LVALUE = new_buffer; /* copied from yy_switch_to_buffer. */ yy_load_buffer_state( yyscanner ); yyg->yy_did_buffer_switch_on_eof = 1; } /** Removes and deletes the top of the stack, if present. * The next element becomes the new top. * @param yyscanner The scanner object. */ void yypop_buffer_state (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; if (!YY_CURRENT_BUFFER) return; yy_delete_buffer(YY_CURRENT_BUFFER , yyscanner); YY_CURRENT_BUFFER_LVALUE = NULL; if (yyg->yy_buffer_stack_top > 0) --yyg->yy_buffer_stack_top; if (YY_CURRENT_BUFFER) { yy_load_buffer_state( yyscanner ); yyg->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 (yyscan_t yyscanner) { yy_size_t num_to_alloc; struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; if (!yyg->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; /* After all that talk, this was set to 1 anyways... */ yyg->yy_buffer_stack = (struct yy_buffer_state**)yyalloc (num_to_alloc * sizeof(struct yy_buffer_state*) , yyscanner); if ( ! yyg->yy_buffer_stack ) YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*)); yyg->yy_buffer_stack_max = num_to_alloc; yyg->yy_buffer_stack_top = 0; return; } if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){ /* Increase the buffer to prepare for a possible push. */ yy_size_t grow_size = 8 /* arbitrary grow size */; num_to_alloc = yyg->yy_buffer_stack_max + grow_size; yyg->yy_buffer_stack = (struct yy_buffer_state**)yyrealloc (yyg->yy_buffer_stack, num_to_alloc * sizeof(struct yy_buffer_state*) , yyscanner); if ( ! yyg->yy_buffer_stack ) YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); /* zero only the new slots.*/ memset(yyg->yy_buffer_stack + yyg->yy_buffer_stack_max, 0, grow_size * sizeof(struct yy_buffer_state*)); yyg->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 * @param yyscanner The scanner object. * @return the newly allocated buffer state object. */ YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size , yyscan_t yyscanner) { 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 NULL; b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) , yyscanner ); if ( ! b ) YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); b->yy_buf_size = (int) (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 = NULL; 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 , yyscanner ); 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 yystr a NUL-terminated string to scan * @param yyscanner The scanner object. * @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 (const char * yystr , yyscan_t yyscanner) { return yy_scan_bytes( yystr, (int) strlen(yystr) , yyscanner); } /** 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 yybytes the byte buffer to scan * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes. * @param yyscanner The scanner object. * @return the newly allocated buffer state object. */ YY_BUFFER_STATE yy_scan_bytes (const char * yybytes, int _yybytes_len , yyscan_t yyscanner) { YY_BUFFER_STATE b; char *buf; yy_size_t n; int i; /* Get memory for full buffer, including space for trailing EOB's. */ n = (yy_size_t) (_yybytes_len + 2); buf = (char *) yyalloc( n , yyscanner ); if ( ! buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); for ( i = 0; i < _yybytes_len; ++i ) buf[i] = yybytes[i]; buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; b = yy_scan_buffer( buf, n , yyscanner); 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; } #ifndef YY_EXIT_FAILURE #define YY_EXIT_FAILURE 2 #endif static void yynoreturn yy_fatal_error (const char* msg , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; (void)yyg; 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] = yyg->yy_hold_char; \ yyg->yy_c_buf_p = yytext + yyless_macro_arg; \ yyg->yy_hold_char = *yyg->yy_c_buf_p; \ *yyg->yy_c_buf_p = '\0'; \ yyleng = yyless_macro_arg; \ } \ while ( 0 ) /* Accessor methods (get/set functions) to struct members. */ /** Get the user-defined data for this scanner. * @param yyscanner The scanner object. */ YY_EXTRA_TYPE yyget_extra (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; return yyextra; } /** Get the current line number. * @param yyscanner The scanner object. */ int yyget_lineno (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; if (! YY_CURRENT_BUFFER) return 0; return yylineno; } /** Get the current column number. * @param yyscanner The scanner object. */ int yyget_column (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; if (! YY_CURRENT_BUFFER) return 0; return yycolumn; } /** Get the input stream. * @param yyscanner The scanner object. */ FILE *yyget_in (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; return yyin; } /** Get the output stream. * @param yyscanner The scanner object. */ FILE *yyget_out (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; return yyout; } /** Get the length of the current token. * @param yyscanner The scanner object. */ int yyget_leng (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; return yyleng; } /** Get the current token. * @param yyscanner The scanner object. */ char *yyget_text (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; return yytext; } /** Set the user-defined data. This data is never touched by the scanner. * @param user_defined The data to be associated with this scanner. * @param yyscanner The scanner object. */ void yyset_extra (YY_EXTRA_TYPE user_defined , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; yyextra = user_defined ; } /** Set the current line number. * @param _line_number line number * @param yyscanner The scanner object. */ void yyset_lineno (int _line_number , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* lineno is only valid if an input buffer exists. */ if (! YY_CURRENT_BUFFER ) YY_FATAL_ERROR( "yyset_lineno called with no buffer" ); yylineno = _line_number; } /** Set the current column. * @param _column_no column number * @param yyscanner The scanner object. */ void yyset_column (int _column_no , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* column is only valid if an input buffer exists. */ if (! YY_CURRENT_BUFFER ) YY_FATAL_ERROR( "yyset_column called with no buffer" ); yycolumn = _column_no; } /** Set the input stream. This does not discard the current * input buffer. * @param _in_str A readable stream. * @param yyscanner The scanner object. * @see yy_switch_to_buffer */ void yyset_in (FILE * _in_str , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; yyin = _in_str ; } void yyset_out (FILE * _out_str , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; yyout = _out_str ; } int yyget_debug (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; return yy_flex_debug; } void yyset_debug (int _bdebug , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; yy_flex_debug = _bdebug ; } /* Accessor methods for yylval and yylloc */ YYSTYPE * yyget_lval (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; return yylval; } void yyset_lval (YYSTYPE * yylval_param , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; yylval = yylval_param; } /* User-visible API */ /* yylex_init is special because it creates the scanner itself, so it is * the ONLY reentrant function that doesn't take the scanner as the last argument. * That's why we explicitly handle the declaration, instead of using our macros. */ int yylex_init(yyscan_t* ptr_yy_globals) { if (ptr_yy_globals == NULL){ errno = EINVAL; return 1; } *ptr_yy_globals = (yyscan_t) yyalloc ( sizeof( struct yyguts_t ), NULL ); if (*ptr_yy_globals == NULL){ errno = ENOMEM; return 1; } /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */ memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t)); return yy_init_globals ( *ptr_yy_globals ); } /* yylex_init_extra has the same functionality as yylex_init, but follows the * convention of taking the scanner as the last argument. Note however, that * this is a *pointer* to a scanner, as it will be allocated by this call (and * is the reason, too, why this function also must handle its own declaration). * The user defined value in the first argument will be available to yyalloc in * the yyextra field. */ int yylex_init_extra( YY_EXTRA_TYPE yy_user_defined, yyscan_t* ptr_yy_globals ) { struct yyguts_t dummy_yyguts; yyset_extra (yy_user_defined, &dummy_yyguts); if (ptr_yy_globals == NULL){ errno = EINVAL; return 1; } *ptr_yy_globals = (yyscan_t) yyalloc ( sizeof( struct yyguts_t ), &dummy_yyguts ); if (*ptr_yy_globals == NULL){ errno = ENOMEM; return 1; } /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */ memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t)); yyset_extra (yy_user_defined, *ptr_yy_globals); return yy_init_globals ( *ptr_yy_globals ); } static int yy_init_globals (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* Initialization is the same as for the non-reentrant scanner. * This function is called from yylex_destroy(), so don't allocate here. */ yyg->yy_buffer_stack = NULL; yyg->yy_buffer_stack_top = 0; yyg->yy_buffer_stack_max = 0; yyg->yy_c_buf_p = NULL; yyg->yy_init = 0; yyg->yy_start = 0; yyg->yy_start_stack_ptr = 0; yyg->yy_start_stack_depth = 0; yyg->yy_start_stack = NULL; /* Defined in main.c */ #ifdef YY_STDINIT yyin = stdin; yyout = stdout; #else yyin = NULL; yyout = NULL; #endif /* For future reference: Set errno on error, since we are called by * yylex_init() */ return 0; } /* yylex_destroy is for both reentrant and non-reentrant scanners. */ int yylex_destroy (yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* Pop the buffer stack, destroying each element. */ while(YY_CURRENT_BUFFER){ yy_delete_buffer( YY_CURRENT_BUFFER , yyscanner ); YY_CURRENT_BUFFER_LVALUE = NULL; yypop_buffer_state(yyscanner); } /* Destroy the stack itself. */ yyfree(yyg->yy_buffer_stack , yyscanner); yyg->yy_buffer_stack = NULL; /* Destroy the start condition stack. */ yyfree( yyg->yy_start_stack , yyscanner ); yyg->yy_start_stack = NULL; /* Reset the globals. This is important in a non-reentrant scanner so the next time * yylex() is called, initialization will occur. */ yy_init_globals( yyscanner); /* Destroy the main struct (reentrant only). */ yyfree ( yyscanner , yyscanner ); yyscanner = NULL; return 0; } /* * Internal utility routines. */ #ifndef yytext_ptr static void yy_flex_strncpy (char* s1, const char * s2, int n , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; (void)yyg; int i; for ( i = 0; i < n; ++i ) s1[i] = s2[i]; } #endif #ifdef YY_NEED_STRLEN static int yy_flex_strlen (const char * s , yyscan_t yyscanner) { int n; for ( n = 0; s[n]; ++n ) ; return n; } #endif void *yyalloc (yy_size_t size , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; (void)yyg; return malloc(size); } void *yyrealloc (void * ptr, yy_size_t size , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; (void)yyg; /* 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 realloc(ptr, size); } void yyfree (void * ptr , yyscan_t yyscanner) { struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; (void)yyg; free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ } #define YYTABLES_NAME "yytables" #line 276 "exprscan.l" /* LCOV_EXCL_STOP */ void expr_yyerror_more(yyscan_t yyscanner, const char *message, const char *more) { PsqlScanState state = yyget_extra(yyscanner); int error_detection_offset = expr_scanner_offset(state) - 1; YYSTYPE lval; char *full_line; /* * While parsing an expression, we may not have collected the whole line * yet from the input source. Lex till EOL so we can report whole line. * (If we're at EOF, it's okay to call yylex() an extra time.) */ if (!last_was_newline) { while (yylex(&lval, yyscanner)) /* skip */ ; } /* Extract the line, trimming trailing newline if any */ full_line = expr_scanner_get_substring(state, expr_start_offset, expr_scanner_offset(state), true); syntax_error(expr_source, expr_lineno, full_line, expr_command, message, more, error_detection_offset - expr_start_offset); } void expr_yyerror(yyscan_t yyscanner, const char *message) { expr_yyerror_more(yyscanner, message, NULL); } /* * Collect a space-separated word from a backslash command and return it * in word_buf, along with its starting string offset in *offset. * Returns true if successful, false if at end of command. */ bool expr_lex_one_word(PsqlScanState state, PQExpBuffer word_buf, int *offset) { int lexresult; YYSTYPE lval; /* Must be scanning already */ Assert(state->scanbufhandle != NULL); /* Set current output target */ state->output_buf = word_buf; resetPQExpBuffer(word_buf); /* Set input source */ if (state->buffer_stack != NULL) yy_switch_to_buffer(state->buffer_stack->buf, state->scanner); else yy_switch_to_buffer(state->scanbufhandle, state->scanner); /* Set start state */ state->start_state = INITIAL; /* And lex. */ lexresult = yylex(&lval, state->scanner); /* * Save start offset of word, if any. We could do this more efficiently, * but for now this seems fine. */ if (lexresult) *offset = expr_scanner_offset(state) - word_buf->len; else *offset = -1; /* * In case the caller returns to using the regular SQL lexer, reselect the * appropriate initial state. */ psql_scan_reselect_sql_lexer(state); return (bool) lexresult; } /* * Prepare to lex an expression via expr_yyparse(). * * Returns the yyscan_t that is to be passed to expr_yyparse(). * (This is just state->scanner, but callers don't need to know that.) */ yyscan_t expr_scanner_init(PsqlScanState state, const char *source, int lineno, int start_offset, const char *command) { /* Save error context info */ expr_source = source; expr_lineno = lineno; expr_start_offset = start_offset; expr_command = command; /* Must be scanning already */ Assert(state->scanbufhandle != NULL); /* Set current output target */ state->output_buf = NULL; /* Set input source */ if (state->buffer_stack != NULL) yy_switch_to_buffer(state->buffer_stack->buf, state->scanner); else yy_switch_to_buffer(state->scanbufhandle, state->scanner); /* Set start state */ state->start_state = EXPR; return state->scanner; } /* * Finish lexing an expression. */ void expr_scanner_finish(yyscan_t yyscanner) { PsqlScanState state = yyget_extra(yyscanner); /* * Reselect appropriate initial state for SQL lexer. */ psql_scan_reselect_sql_lexer(state); } /* * Get offset from start of string to end of current lexer token. * * We rely on the knowledge that flex modifies the scan buffer by storing * a NUL at the end of the current token (yytext). Note that this might * not work quite right if we were parsing a sub-buffer, but since pgbench * never invokes that functionality, it doesn't matter. */ int expr_scanner_offset(PsqlScanState state) { return strlen(state->scanbuf); } /* * Get a malloc'd copy of the lexer input string from start_offset * to just before end_offset. If chomp is true, drop any trailing * newline(s). */ char * expr_scanner_get_substring(PsqlScanState state, int start_offset, int end_offset, bool chomp) { char *result; const char *scanptr = state->scanbuf + start_offset; int slen = end_offset - start_offset; Assert(slen >= 0); Assert(end_offset <= strlen(state->scanbuf)); if (chomp) { while (slen > 0 && (scanptr[slen - 1] == '\n' || scanptr[slen - 1] == '\r')) slen--; } result = (char *) pg_malloc(slen + 1); memcpy(result, scanptr, slen); result[slen] = '\0'; return result; } /* * Get the line number associated with the given string offset * (which must not be past the end of where we've lexed to). */ int expr_scanner_get_lineno(PsqlScanState state, int offset) { int lineno = 1; const char *p = state->scanbuf; while (*p && offset > 0) { if (*p == '\n') lineno++; p++, offset--; } return lineno; }