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 */
| 1344 | * EOB_ACT_END_OF_FILE - end of file |
| 1345 | */ |
| 1346 | static int yy_get_next_buffer (yyscan_t yyscanner) |
| 1347 | { |
| 1348 | struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; |
| 1349 | char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; |
| 1350 | char *source = yyg->yytext_ptr; |
| 1351 | yy_size_t number_to_move, i; |
| 1352 | int ret_val; |
| 1353 | |
| 1354 | if ( yyg->yy_c_buf_p > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] ) |
| 1355 | YY_FATAL_ERROR( |
| 1356 | "fatal flex scanner internal error--end of buffer missed" ); |
| 1357 | |
| 1358 | if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) |
| 1359 | { /* Don't try to fill the buffer, so this is an EOF. */ |
| 1360 | if ( yyg->yy_c_buf_p - yyg->yytext_ptr - YY_MORE_ADJ == 1 ) |
| 1361 | { |
| 1362 | /* We matched a single character, the EOB, so |
| 1363 | * treat this as a final EOF. |
| 1364 | */ |
| 1365 | return EOB_ACT_END_OF_FILE; |
| 1366 | } |
| 1367 | |
| 1368 | else |
| 1369 | { |
| 1370 | /* We matched some text prior to the EOB, first |
| 1371 | * process it. |
| 1372 | */ |
| 1373 | return EOB_ACT_LAST_MATCH; |
| 1374 | } |
| 1375 | } |
| 1376 | |
| 1377 | /* Try to read more data. */ |
| 1378 | |
| 1379 | /* First move last chars to start of buffer. */ |
| 1380 | number_to_move = (yy_size_t) (yyg->yy_c_buf_p - yyg->yytext_ptr) - 1; |
| 1381 | |
| 1382 | for ( i = 0; i < number_to_move; ++i ) |
| 1383 | *(dest++) = *(source++); |
| 1384 | |
| 1385 | if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) |
| 1386 | /* don't do the read, it's not guaranteed to return an EOF, |
| 1387 | * just force an EOF |
| 1388 | */ |
| 1389 | YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars = 0; |
| 1390 | |
| 1391 | else |
| 1392 | { |
| 1393 | int num_to_read = |
| 1394 | YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; |
| 1395 | |
| 1396 | while ( num_to_read <= 0 ) |
| 1397 | { /* Not enough room in the buffer - grow it. */ |
| 1398 | |
| 1399 | /* just a shorter name for the current buffer */ |
| 1400 | YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; |
| 1401 | |
| 1402 | int yy_c_buf_p_offset = |
| 1403 | (int) (yyg->yy_c_buf_p - b->yy_ch_buf); |
no test coverage detected