1 /* $NetBSD: errarg.cpp,v 1.1.1.1 2016/01/13 18:41:48 christos Exp $ */ 2 3 // -*- C++ -*- 4 /* Copyright (C) 1989, 1990, 1991, 1992, 2000, 2002 5 Free Software Foundation, Inc. 6 Written by James Clark (jjc@jclark.com) 7 8 This file is part of groff. 9 10 groff is free software; you can redistribute it and/or modify it under 11 the terms of the GNU General Public License as published by the Free 12 Software Foundation; either version 2, or (at your option) any later 13 version. 14 15 groff is distributed in the hope that it will be useful, but WITHOUT ANY 16 WARRANTY; without even the implied warranty of MERCHANTABILITY or 17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 18 for more details. 19 20 You should have received a copy of the GNU General Public License along 21 with groff; see the file COPYING. If not, write to the Free Software 22 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */ 23 24 #include <stdio.h> 25 #include "assert.h" 26 #include "errarg.h" 27 28 errarg::errarg(const char *p) : type(STRING) 29 { 30 s = p ? p : "(null)"; 31 } 32 33 errarg::errarg() : type(EMPTY) 34 { 35 } 36 37 errarg::errarg(int nn) : type(INTEGER) 38 { 39 n = nn; 40 } 41 42 errarg::errarg(unsigned int uu) : type(UNSIGNED_INTEGER) 43 { 44 u = uu; 45 } 46 47 errarg::errarg(char cc) : type(CHAR) 48 { 49 c = cc; 50 } 51 52 errarg::errarg(unsigned char cc) : type(CHAR) 53 { 54 c = cc; 55 } 56 57 errarg::errarg(double dd) : type(DOUBLE) 58 { 59 d = dd; 60 } 61 62 int errarg::empty() const 63 { 64 return type == EMPTY; 65 } 66 67 extern "C" { 68 const char *i_to_a(int); 69 const char *ui_to_a(unsigned int); 70 } 71 72 void errarg::print() const 73 { 74 switch (type) { 75 case INTEGER: 76 fputs(i_to_a(n), stderr); 77 break; 78 case UNSIGNED_INTEGER: 79 fputs(ui_to_a(u), stderr); 80 break; 81 case CHAR: 82 putc(c, stderr); 83 break; 84 case STRING: 85 fputs(s, stderr); 86 break; 87 case DOUBLE: 88 fprintf(stderr, "%g", d); 89 break; 90 case EMPTY: 91 break; 92 } 93 } 94 95 errarg empty_errarg; 96 97 void errprint(const char *format, 98 const errarg &arg1, 99 const errarg &arg2, 100 const errarg &arg3) 101 { 102 assert(format != 0); 103 char c; 104 while ((c = *format++) != '\0') { 105 if (c == '%') { 106 c = *format++; 107 switch(c) { 108 case '%': 109 fputc('%', stderr); 110 break; 111 case '1': 112 assert(!arg1.empty()); 113 arg1.print(); 114 break; 115 case '2': 116 assert(!arg2.empty()); 117 arg2.print(); 118 break; 119 case '3': 120 assert(!arg3.empty()); 121 arg3.print(); 122 break; 123 default: 124 assert(0); 125 } 126 } 127 else 128 putc(c, stderr); 129 } 130 } 131