| 43 | }; |
| 44 | |
| 45 | static void gather_stats(const char *buf, unsigned long size, struct text_stat *stats) |
| 46 | { |
| 47 | unsigned long i; |
| 48 | |
| 49 | memset(stats, 0, sizeof(*stats)); |
| 50 | |
| 51 | for (i = 0; i < size; i++) { |
| 52 | unsigned char c = buf[i]; |
| 53 | if (c == '\r') { |
| 54 | if (i+1 < size && buf[i+1] == '\n') { |
| 55 | stats->crlf++; |
| 56 | i++; |
| 57 | } else |
| 58 | stats->lonecr++; |
| 59 | continue; |
| 60 | } |
| 61 | if (c == '\n') { |
| 62 | stats->lonelf++; |
| 63 | continue; |
| 64 | } |
| 65 | if (c == 127) |
| 66 | /* DEL */ |
| 67 | stats->nonprintable++; |
| 68 | else if (c < 32) { |
| 69 | switch (c) { |
| 70 | /* BS, HT, ESC and FF */ |
| 71 | case '\b': case '\t': case '\033': case '\014': |
| 72 | stats->printable++; |
| 73 | break; |
| 74 | case 0: |
| 75 | stats->nul++; |
| 76 | /* fall through */ |
| 77 | default: |
| 78 | stats->nonprintable++; |
| 79 | } |
| 80 | } |
| 81 | else |
| 82 | stats->printable++; |
| 83 | } |
| 84 | |
| 85 | /* If file ends with EOF then don't count this EOF as non-printable. */ |
| 86 | if (size >= 1 && buf[size-1] == '\032') |
| 87 | stats->nonprintable--; |
| 88 | } |
| 89 | |
| 90 | /* |
| 91 | * The same heuristics as diff.c::mmfile_is_binary() |
no outgoing calls
no test coverage detected