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1 | /* -*-c-*- |
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2 | * |
3 | * Print strings, substituting the program name |
4 | * |
5 | * (c) 1999 Straylight/Edgeware |
6 | */ |
7 | |
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8 | /*----- Licensing notice --------------------------------------------------* |
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9 | * |
10 | * This file is part of the mLib utilities library. |
11 | * |
12 | * mLib is free software; you can redistribute it and/or modify |
13 | * it under the terms of the GNU Library General Public License as |
14 | * published by the Free Software Foundation; either version 2 of the |
15 | * License, or (at your option) any later version. |
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16 | * |
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17 | * mLib is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | * GNU Library General Public License for more details. |
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21 | * |
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22 | * You should have received a copy of the GNU Library General Public |
23 | * License along with mLib; if not, write to the Free |
24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
25 | * MA 02111-1307, USA. |
26 | */ |
27 | |
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28 | /*----- Header files ------------------------------------------------------*/ |
29 | |
30 | #include <stdio.h> |
31 | #include <string.h> |
32 | |
33 | #include "quis.h" |
34 | |
35 | /*----- Main code ---------------------------------------------------------*/ |
36 | |
37 | /* --- @pquis@ --- * |
38 | * |
39 | * Arguments: @FILE *fp@ = output stream to write on |
40 | * @const char *p@ = pointer to string to write |
41 | * |
42 | * Returns: Zero if everything worked, EOF if not. |
43 | * |
44 | * Use: Writes the string @p@ to the output stream @fp@. Occurrences |
45 | * of the character `$' in @p@ are replaced by the program name |
46 | * as reported by @quis@. A `$$' is replaced by a single `$' |
47 | * sign. |
48 | */ |
49 | |
50 | int pquis(FILE *fp, const char *p) |
51 | { |
52 | size_t sz; |
53 | |
54 | while (*p) { |
55 | sz = strcspn(p, "$"); |
56 | if (sz) { |
57 | if (fwrite(p, 1, sz, fp) < sz) |
58 | return (EOF); |
59 | p += sz; |
60 | } |
61 | if (*p == '$') { |
62 | p++; |
63 | if (*p == '$') { |
64 | if (fputc('$', fp) == EOF) |
65 | return (EOF); |
66 | p++; |
67 | } else { |
68 | if (fputs(pn__name, fp) == EOF) |
69 | return (EOF); |
70 | } |
71 | } |
72 | } |
73 | return (0); |
74 | } |
75 | |
76 | /*----- That's all, folks -------------------------------------------------*/ |