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119 lines
2.1 KiB
C++
119 lines
2.1 KiB
C++
// -*- C++ -*-
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/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
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Written by James Clark (jjc@jclark.com)
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This file is part of groff.
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groff is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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groff is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with groff; see the file COPYING. If not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include "assert.h"
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#include "errarg.h"
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errarg::errarg(const char *p) : type(STRING)
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{
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s = p ? p : "(null)";
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}
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errarg::errarg() : type(EMPTY)
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{
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}
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errarg::errarg(unsigned char cc) : type(CHAR)
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{
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c = cc;
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}
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errarg::errarg(int nn) : type(INTEGER)
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{
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n = nn;
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}
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errarg::errarg(char cc) : type(CHAR)
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{
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c = cc;
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}
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errarg::errarg(double dd) : type(DOUBLE)
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{
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d = dd;
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}
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int errarg::empty() const
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{
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return type == EMPTY;
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}
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extern "C" {
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const char *itoa(int);
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}
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void errarg::print() const
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{
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switch (type) {
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case INTEGER:
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fputs(itoa(n), stderr);
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break;
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case CHAR:
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putc(c, stderr);
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break;
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case STRING:
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fputs(s, stderr);
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break;
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case DOUBLE:
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fprintf(stderr, "%g", d);
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break;
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case EMPTY:
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break;
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}
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}
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errarg empty_errarg;
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void errprint(const char *format,
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const errarg &arg1,
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const errarg &arg2,
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const errarg &arg3)
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{
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assert(format != 0);
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char c;
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while ((c = *format++) != '\0') {
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if (c == '%') {
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c = *format++;
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switch(c) {
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case '%':
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fputc('%', stderr);
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break;
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case '1':
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assert(!arg1.empty());
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arg1.print();
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break;
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case '2':
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assert(!arg2.empty());
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arg2.print();
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break;
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case '3':
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assert(!arg3.empty());
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arg3.print();
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break;
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default:
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assert(0);
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}
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}
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else
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putc(c, stderr);
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}
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}
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