source: buchla-68k/libcio/filname.c@ 9519422

Last change on this file since 9519422 was 7258c6a, checked in by Thomas Lopatic <thomas@…>, 7 years ago

Use standard integer types.
  • Property mode set to 100644
File size: 2.9 KB
Line 
1/*
2 =============================================================================
3 filname.c -- file name and extension extractors
4 Version 3 -- 1987-07-09 -- D.N. Lynx Crowe
5 =============================================================================
6*/
7
8#define TESTER 0 /* define non-zero for test routine */
9
10#include <stddefs.h>
11
12#define MAX_NAME 8 /* maximum length of a file name */
13#define MAX_EXT 3 /* maximum length of an extension */
14
15/*
16 =============================================================================
17 FilName(s, p) -- Return a pointer to a string containing the file name
18 found in the string at 's'. Copy the file name into string 'p'.
19 =============================================================================
20*/
21
22int8_t *FilName(int8_t *s, int8_t *p)
23{
24 register int8_t *tp;
25 register int16_t i;
26
27 tp = p;
28
29 for (i = 0; i < MAX_NAME; i++) { /* scan the name */
30
31 if (*s) { /* ... until we hit a '\0' */
32
33 if (*s EQ '.') /* ... or a '.' */
34 break;
35
36 *p++ = *s++; /* ... copying as we go */
37
38 } else { /* stop at '\0' */
39
40 *p = '\0'; /* terminate the string */
41 return(tp); /* return a pointer to it */
42 }
43 }
44
45 *p = '\0'; /* copied MAX_NAME bytes - that's all folks */
46 return(tp);
47}
48
49/*
50
51*/
52
53/*
54 =============================================================================
55 FilExt(s, p) -- Returns a pointer to a copy of the extension of
56 the file name in 's'. The file name is copied into string 'p' and
57 a pointer to 'p' is returned.
58 =============================================================================
59*/
60
61int8_t *FilExt(int8_t *s, int8_t *p)
62{
63 register int8_t c, *tp;
64 register int16_t i;
65
66 tp = p;
67
68 while (c = *s) { /* scan the string */
69
70 if (c EQ '.') { /* ... until we hit the dot */
71
72 ++s; /* point past the dot */
73
74 for (i = 0; i < MAX_EXT; i++) { /* scan the extension ... */
75
76 if (*s) { /* ... until we hit a '\0' */
77
78 *p++ = *s++; /* ... copying as we go */
79
80 } else { /* stop at '\0' */
81
82 *p = '\0'; /* terminate the string */
83 return(tp); /* return a pointer to it */
84 }
85 }
86
87 *p = '\0'; /* copied MAX_EXT bytes - that's all folks */
88 return(tp); /* return a pointer to the result */
89
90 } else {
91
92 ++s; /* advance the pointer */
93 }
94 }
95
96 *p = '\0'; /* terminate the string */
97 return(tp); /* return a pointer to the result */
98}
99
100/*
101
102*/
103
104#if TESTER
105
106char *fn[] = { /* test cases */
107
108 "FILE.NAM",
109 "FILE",
110 "FILE.",
111 ".NAM",
112 ".",
113 "",
114 "fartoolonganame.longextension",
115 "fartoolonganame",
116 "fartoolonganame.",
117 ".longextension"
118};
119
120#define NCASES ((sizeof fn) / (sizeof (char *)))
121
122char temp1[MAX_NAME+1], temp2[MAX_EXT+1];
123
124fnt(s) /* test both functions and print the result */
125char *s;
126{
127 printf("[%s] gave [%s] [%s]\r\n",
128 s, FilName(s, temp1), FilExt(s, temp2));
129}
130
131main()
132{
133 int i;
134
135 /* hand the functions each of the test cases */
136
137 for (i = 0; i < NCASES; i++)
138 fnt(fn[i]);
139
140 exit();
141}
142
143#endif
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