| 333 | the next buffer is filled. */ |
| 334 | |
| 335 | static idx_t |
| 336 | record_line_starts (struct buffer_record *b) |
| 337 | { |
| 338 | char *line_start; /* Start of current line. */ |
| 339 | idx_t lines; /* Number of lines found. */ |
| 340 | idx_t line_length; /* Length of each line found. */ |
| 341 | |
| 342 | if (b->bytes_used == 0) |
| 343 | return 0; |
| 344 | |
| 345 | lines = 0; |
| 346 | line_start = b->buffer; |
| 347 | char *buffer_end = line_start + b->bytes_used; |
| 348 | *buffer_end = '\n'; |
| 349 | |
| 350 | while (true) |
| 351 | { |
| 352 | char *line_end = rawmemchr (line_start, '\n'); |
| 353 | if (line_end == buffer_end) |
| 354 | break; |
| 355 | line_length = line_end - line_start + 1; |
| 356 | keep_new_line (b, line_start, line_length); |
| 357 | line_start = line_end + 1; |
| 358 | lines++; |
| 359 | } |
| 360 | |
| 361 | /* Check for an incomplete last line. */ |
| 362 | idx_t bytes_left = buffer_end - line_start; |
| 363 | if (bytes_left) |
| 364 | { |
| 365 | if (have_read_eof) |
| 366 | { |
| 367 | keep_new_line (b, line_start, bytes_left); |
| 368 | lines++; |
| 369 | } |
| 370 | else |
| 371 | save_to_hold_area (ximemdup (line_start, bytes_left), bytes_left); |
| 372 | } |
| 373 | |
| 374 | b->num_lines = lines; |
| 375 | b->first_available = b->start_line = last_line_number + 1; |
| 376 | last_line_number += lines; |
| 377 | |
| 378 | return lines; |
| 379 | } |
| 380 | |
| 381 | /* Work around <https://gcc.gnu.org/PR109614>. */ |
| 382 | #if 13 <= __GNUC__ |
no test coverage detected