Commit | Line | Data |
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e095fd0c JB |
1 | /* File name wild card expansion for VMS. |
2 | This file is part of the etags program. | |
aceb65a6 | 3 | Copyright (C) 1987 Free Software Foundation, Inc. |
e095fd0c | 4 | |
aceb65a6 DM |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2, or (at your option) | |
8 | any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
e095fd0c JB |
18 | |
19 | #include <stdio.h> | |
20 | typedef char tbool; | |
21 | ||
22 | /* This is a BUG! ANY arbitrary limit is a BUG! | |
23 | Won't someone please fix this? */ | |
24 | #define MAX_FILE_SPEC_LEN 255 | |
25 | typedef struct { | |
26 | short curlen; | |
27 | char body[MAX_FILE_SPEC_LEN + 1]; | |
28 | } vspec; | |
29 | #define EOS '\0' | |
30 | #define NO 0 | |
31 | #define YES 1 | |
32 | #define NULL 0 | |
33 | ||
aceb65a6 | 34 | /* gfnames - return in successive calls the |
e095fd0c JB |
35 | name of each file specified by all the remaining args in the command-line |
36 | expanding wild cards and | |
37 | stepping over arguments when they have been processed completely | |
38 | */ | |
39 | char* | |
40 | gfnames(pac, pav, p_error) | |
41 | int *pac; | |
42 | char **pav[]; | |
43 | tbool *p_error; | |
44 | { | |
45 | static vspec filename = {MAX_FILE_SPEC_LEN, "\0"}; | |
46 | short fn_exp(); | |
47 | ||
48 | while (1) | |
49 | if (*pac == 0) | |
50 | { | |
51 | *p_error = NO; | |
52 | return(NULL); | |
53 | } | |
54 | else switch(fn_exp(&filename, **pav)) | |
55 | { | |
56 | case 1: | |
57 | *p_error = NO; | |
58 | return(filename.body); | |
59 | break; | |
60 | case 0: | |
61 | --*pac; | |
62 | ++*pav; | |
63 | break; | |
64 | default: | |
65 | *p_error = YES; | |
66 | return(filename.body); | |
67 | break; | |
68 | } | |
69 | ||
70 | } | |
71 | ||
aceb65a6 | 72 | /* fn_exp - expand specification of list of file names |
e095fd0c JB |
73 | returning in each successive call the next filename matching the input |
74 | spec. The function expects that each in_spec passed | |
75 | to it will be processed to completion; in particular, up to and | |
76 | including the call following that in which the last matching name | |
77 | is returned, the function ignores the value of in_spec, and will | |
78 | only start processing a new spec with the following call. | |
79 | If an error occurs, on return out_spec contains the value | |
80 | of in_spec when the error occurred. | |
81 | ||
82 | With each successive filename returned in out_spec, the | |
83 | function's return value is one. When there are no more matching | |
84 | names the function returns zero. If on the first call no file | |
85 | matches in_spec, or there is any other error, -1 is returned. | |
86 | */ | |
87 | ||
88 | #include <rmsdef.h> | |
89 | #include <descrip.h> | |
90 | #define OUTSIZE MAX_FILE_SPEC_LEN | |
91 | short | |
92 | fn_exp(out, in) | |
93 | vspec *out; | |
94 | char *in; | |
95 | { | |
96 | static long context = 0; | |
97 | static struct dsc$descriptor_s o; | |
98 | static struct dsc$descriptor_s i; | |
99 | static tbool pass1 = YES; | |
100 | long status; | |
101 | short retval; | |
102 | ||
103 | if (pass1) | |
104 | { | |
105 | pass1 = NO; | |
d1c5af3e | 106 | o.dsc$a_pointer = (char *) out; |
e095fd0c JB |
107 | o.dsc$w_length = (short)OUTSIZE; |
108 | i.dsc$a_pointer = in; | |
109 | i.dsc$w_length = (short)strlen(in); | |
110 | i.dsc$b_dtype = DSC$K_DTYPE_T; | |
111 | i.dsc$b_class = DSC$K_CLASS_S; | |
112 | o.dsc$b_dtype = DSC$K_DTYPE_VT; | |
113 | o.dsc$b_class = DSC$K_CLASS_VS; | |
114 | } | |
115 | if ( (status = lib$find_file(&i, &o, &context, 0, 0)) == RMS$_NORMAL) | |
116 | { | |
117 | out->body[out->curlen] = EOS; | |
118 | return(1); | |
119 | } | |
120 | else if (status == RMS$_NMF) | |
121 | retval = 0; | |
122 | else | |
123 | { | |
124 | strcpy(out->body, in); | |
125 | retval = -1; | |
126 | } | |
127 | lib$find_file_end(&context); | |
128 | pass1 = YES; | |
129 | return(retval); | |
130 | } | |
131 | ||
132 | #ifndef OLD /* Newer versions of VMS do provide `system'. */ | |
133 | system(cmd) | |
134 | char *cmd; | |
135 | { | |
136 | fprintf(stderr, "system() function not implemented under VMS\n"); | |
137 | } | |
138 | #endif | |
139 | ||
140 | #define VERSION_DELIM ';' | |
141 | char *massage_name(s) | |
142 | char *s; | |
143 | { | |
144 | char *start = s; | |
145 | ||
146 | for ( ; *s; s++) | |
147 | if (*s == VERSION_DELIM) | |
148 | { | |
149 | *s = EOS; | |
150 | break; | |
151 | } | |
152 | else | |
153 | *s = tolower(*s); | |
154 | return(start); | |
155 | } |