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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 -------------------------------------------------*/ |
~mdw / mLib / blame