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 */
| 3092 | * EOB_ACT_END_OF_FILE - end of file |
| 3093 | */ |
| 3094 | static int yy_get_next_buffer (void) |
| 3095 | { |
| 3096 | char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; |
| 3097 | char *source = (yytext_ptr); |
| 3098 | int number_to_move, i; |
| 3099 | int ret_val; |
| 3100 | |
| 3101 | if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) |
| 3102 | YY_FATAL_ERROR( |
| 3103 | "fatal flex scanner internal error--end of buffer missed" ); |
| 3104 | |
| 3105 | if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) |
| 3106 | { /* Don't try to fill the buffer, so this is an EOF. */ |
| 3107 | if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) |
| 3108 | { |
| 3109 | /* We matched a single character, the EOB, so |
| 3110 | * treat this as a final EOF. |
| 3111 | */ |
| 3112 | return EOB_ACT_END_OF_FILE; |
| 3113 | } |
| 3114 | |
| 3115 | else |
| 3116 | { |
| 3117 | /* We matched some text prior to the EOB, first |
| 3118 | * process it. |
| 3119 | */ |
| 3120 | return EOB_ACT_LAST_MATCH; |
| 3121 | } |
| 3122 | } |
| 3123 | |
| 3124 | /* Try to read more data. */ |
| 3125 | |
| 3126 | /* First move last chars to start of buffer. */ |
| 3127 | number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr) - 1); |
| 3128 | |
| 3129 | for ( i = 0; i < number_to_move; ++i ) |
| 3130 | *(dest++) = *(source++); |
| 3131 | |
| 3132 | if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) |
| 3133 | /* don't do the read, it's not guaranteed to return an EOF, |
| 3134 | * just force an EOF |
| 3135 | */ |
| 3136 | YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; |
| 3137 | |
| 3138 | else |
| 3139 | { |
| 3140 | int num_to_read = |
| 3141 | YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; |
| 3142 | |
| 3143 | while ( num_to_read <= 0 ) |
| 3144 | { /* Not enough room in the buffer - grow it. */ |
| 3145 | |
| 3146 | /* just a shorter name for the current buffer */ |
| 3147 | YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; |
| 3148 | |
| 3149 | int yy_c_buf_p_offset = |
| 3150 | (int) ((yy_c_buf_p) - b->yy_ch_buf); |
| 3151 |
no test coverage detected