| Revision 12455,
1.6 KB
checked in by danw, 26 years ago
(diff) |
|
This commit was generated by cvs2svn to compensate for changes in r12454,
which included commits to RCS files with non-trunk default branches.
|
| Line | |
|---|
| 1 | |
|---|
| 2 | /* |
|---|
| 3 | * fmt_new.c -- read format file/string and normalize |
|---|
| 4 | * |
|---|
| 5 | * $Id: fmt_new.c,v 1.1.1.1 1999-02-07 18:14:08 danw Exp $ |
|---|
| 6 | */ |
|---|
| 7 | |
|---|
| 8 | #include <h/mh.h> |
|---|
| 9 | |
|---|
| 10 | #define QUOTE '\\' |
|---|
| 11 | |
|---|
| 12 | static char *formats = 0; |
|---|
| 13 | |
|---|
| 14 | /* |
|---|
| 15 | * static prototypes |
|---|
| 16 | */ |
|---|
| 17 | static void normalize (char *); |
|---|
| 18 | |
|---|
| 19 | |
|---|
| 20 | /* |
|---|
| 21 | * Get new format string |
|---|
| 22 | */ |
|---|
| 23 | |
|---|
| 24 | char * |
|---|
| 25 | new_fs (char *form, char *format, char *default_fs) |
|---|
| 26 | { |
|---|
| 27 | struct stat st; |
|---|
| 28 | register FILE *fp; |
|---|
| 29 | |
|---|
| 30 | if (formats) |
|---|
| 31 | free (formats); |
|---|
| 32 | |
|---|
| 33 | if (form) { |
|---|
| 34 | if ((fp = fopen (etcpath (form), "r")) == NULL) |
|---|
| 35 | adios (form, "unable to open format file"); |
|---|
| 36 | |
|---|
| 37 | if (fstat (fileno (fp), &st) == -1) |
|---|
| 38 | adios (form, "unable to stat format file"); |
|---|
| 39 | |
|---|
| 40 | if (!(formats = malloc ((size_t) st.st_size + 1))) |
|---|
| 41 | adios (form, "unable to allocate space for format"); |
|---|
| 42 | |
|---|
| 43 | if (read (fileno(fp), formats, (int) st.st_size) != st.st_size) |
|---|
| 44 | adios (form, "error reading format file"); |
|---|
| 45 | |
|---|
| 46 | formats[st.st_size] = '\0'; |
|---|
| 47 | |
|---|
| 48 | fclose (fp); |
|---|
| 49 | } else { |
|---|
| 50 | formats = getcpy (format ? format : default_fs); |
|---|
| 51 | } |
|---|
| 52 | |
|---|
| 53 | normalize (formats); /* expand escapes */ |
|---|
| 54 | |
|---|
| 55 | return formats; |
|---|
| 56 | } |
|---|
| 57 | |
|---|
| 58 | |
|---|
| 59 | /* |
|---|
| 60 | * Expand escapes in format strings |
|---|
| 61 | */ |
|---|
| 62 | |
|---|
| 63 | static void |
|---|
| 64 | normalize (char *cp) |
|---|
| 65 | { |
|---|
| 66 | char *dp; |
|---|
| 67 | |
|---|
| 68 | for (dp = cp; *cp; cp++) { |
|---|
| 69 | if (*cp != QUOTE) { |
|---|
| 70 | *dp++ = *cp; |
|---|
| 71 | } else { |
|---|
| 72 | switch (*++cp) { |
|---|
| 73 | case 'b': |
|---|
| 74 | *dp++ = '\b'; |
|---|
| 75 | break; |
|---|
| 76 | |
|---|
| 77 | case 'f': |
|---|
| 78 | *dp++ = '\f'; |
|---|
| 79 | break; |
|---|
| 80 | |
|---|
| 81 | case 'n': |
|---|
| 82 | *dp++ = '\n'; |
|---|
| 83 | break; |
|---|
| 84 | |
|---|
| 85 | case 'r': |
|---|
| 86 | *dp++ = '\r'; |
|---|
| 87 | break; |
|---|
| 88 | |
|---|
| 89 | case 't': |
|---|
| 90 | *dp++ = '\t'; |
|---|
| 91 | break; |
|---|
| 92 | |
|---|
| 93 | case '\n': |
|---|
| 94 | break; |
|---|
| 95 | |
|---|
| 96 | case 0: |
|---|
| 97 | cp--; /* fall */ |
|---|
| 98 | default: |
|---|
| 99 | *dp++ = *cp; |
|---|
| 100 | break; |
|---|
| 101 | } |
|---|
| 102 | } |
|---|
| 103 | } |
|---|
| 104 | *dp = '\0'; |
|---|
| 105 | } |
|---|
Note: See
TracBrowser
for help on using the repository browser.
