NetBSD-5.0.2/usr.bin/tn3270/ascii/mset.c
/* $NetBSD: mset.c,v 1.8 2008/07/21 14:19:26 lukem Exp $ */
/*-
* Copyright (c) 1988 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1988\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)mset.c 4.2 (Berkeley) 4/26/91";
#else
__RCSID("$NetBSD: mset.c,v 1.8 2008/07/21 14:19:26 lukem Exp $");
#endif
#endif /* not lint */
/*
* this program outputs the user's 3270 mapping table in a form suitable
* for inclusion in the environment. Typically, this might be used
* by:
* setenv MAP3270 "`mset`"
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../ctlr/function.h"
#include "state.h"
#include "map3270.h"
#include "../api/astosc.h"
#include "../general/globals.h"
struct regstate {
char *result;
char *match_start;
char *match_end; /* start of NEXT state's match string */
struct regstate *forward;
struct regstate *backward;
};
static struct regstate regstates[500], *rptr= 0; /* for sorting states */
static char array[5000]; /* lot's of room */
static int toshell = 0; /* export to shell */
static int numbchars = 0; /* number of chars in envir. var */
static int MyStrcmp(char *, char *);
static void forwRegister(struct regstate *, struct regstate *);
static void backRegister(struct regstate *, struct regstate *);
static struct regstate *doRegister(struct regstate *);
static char *addString(int, int);
static void printString(char *, char *, char *);
static void recurse(int, state *);
int main(int, char *[]);
static int
MyStrcmp(str1, str2)
char *str1, *str2;
{
if (strncmp(str1, "PFK", 3) == 0 && strncmp(str2, "PFK", 3) == 0
&& strlen(str1) != strlen(str2)) {
return(strlen(str1) - strlen(str2));
}
return(strcmp(str1, str2));
}
static void
forwRegister(regptr, sptr)
struct regstate *regptr, *sptr;
{
regptr->forward = sptr->forward;
regptr->backward = sptr;
(sptr->forward)->backward = regptr;
sptr->forward = regptr;
}
static void
backRegister(regptr, sptr)
struct regstate *regptr, *sptr;
{
regptr->forward = sptr;
regptr->backward = sptr->backward;
(sptr->backward)->forward = regptr;
sptr->backward = regptr;
}
static struct regstate *
doRegister(regptr)
struct regstate *regptr;
{
static struct regstate *pivot = regstates;
struct regstate *sptr = pivot;
int check;
if (pivot == regstates) { /* first time called */
pivot->forward = regptr;
regptr->backward = pivot++;
pivot->backward = regptr;
regptr->forward = pivot++;
return(++regptr);
}
if ((check = MyStrcmp(regptr->result, pivot->result)) < 0) {
while (check < 0) {
if (sptr->backward == regstates) {
backRegister(regptr, sptr);
pivot = pivot->backward;
return(++regptr);
}
sptr = sptr->backward;
check = MyStrcmp(regptr->result, sptr->result);
}
forwRegister(regptr, sptr);
pivot = pivot->backward;
return(++regptr);
}
while (check > 0) {
if ((sptr->forward)->result == 0) {
forwRegister(regptr, sptr);
pivot = pivot->forward;
return(++regptr);
}
sptr = sptr->forward;
check = MyStrcmp(regptr->result, sptr->result);
}
backRegister(regptr, sptr);
if (pivot->forward->result) {
pivot = pivot->forward;
}
return(++regptr);
}
static char *
addString(strcount, character)
int strcount;
char character;
{
static char *string = array;
int i;
if (rptr->match_start == 0) {
rptr->match_start = string;
for (i=0; i < strcount; i++) {
*string++ = *((rptr-1)->match_start+i);
}
}
*string++ = character;
return(string);
}
static char savename[20] = " "; /* for deciding if name is new */
static void
printString(string, begin, tc_name)
char *string;
char *begin, *tc_name;
{
char *st1, *st2;
int pchar;
static char suffix = 'A';
int new = strcmp(savename, tc_name);
char delim = new ? ';' : '|';
st1 = begin;
numbchars += 5 + (new ? strlen(tc_name) : -1);
if (toshell && numbchars > 1011) {
new = 1;
delim = ';';
numbchars = 5 + strlen(tc_name);
printf(";\nsetenv MAP3270%c ", suffix++);
}
if (strcmp(" ", savename)) {
if (toshell) {
printf("%c%c", '\\', delim);
}
else {
printf("%c", delim);
}
}
else {
numbchars -= 2;
}
if (toshell && new) {
printf("%s=%c'", tc_name,'\\');
}
else if (new) {
printf("%s='", tc_name);
}
else if (toshell) {
printf("%c'", '\\');
}
else {
printf("'");
}
(void) strcpy(savename, tc_name);
while (st1 != string) {
if (toshell && numbchars >= 1016) { /* leave room for ctrl and delim */
numbchars = 0;
printf(";\nsetenv MAP3270%c ", suffix++);
}
pchar = 0xff&(*st1++);
switch (pchar) {
case '"':
case '!':
case '$':
case '(':
case ')':
case ' ':
case ';':
case '&':
case '|':
case '>':
case '<':
case '`':
case '#':
numbchars += 2;
if (toshell) {
printf("%c%c", '\\', pchar);
}
else {
printf("%c", pchar);
}
break;
case '\\':
case '\'':
numbchars += 4;
if (toshell) {
printf("%c%c%c%c", '\\', '\\', '\\', pchar);
}
else {
printf("%c%c", '\\', pchar);
}
break;
case '^':
numbchars += 3;
if (toshell) {
printf("%c%c%c", '\\', '\\', pchar);
}
else {
printf("%c%c", '\\', pchar);
}
break;
default:
st2 = uncontrol(pchar);
while ((pchar = *st2++) != 0) {
switch (pchar) {
case '"':
case '!':
case '$':
case '(':
case ')':
case ' ':
case ';':
case '&':
case '|':
case '>':
case '<':
case '`':
case '#':
case '\\':
case '\'':
if (toshell) {
numbchars += 2;
printf("%c%c", '\\', pchar);
}
else {
printf("%c", pchar);
}
break;
default:
numbchars++;
printf("%c", pchar);
break;
}
}
break;
}
}
numbchars += 2;
if (toshell) {
printf("%c'", '\\');
}
else {
printf("'");
}
}
static void
recurse(strcount, head)
state *head;
int strcount;
{
/* if there is a left,
* recurse on left,
* if there is no down,
* print the string to here
* else,
* add the current match to the string,
* recurse.
* exit.
*/
if (head->next) {
recurse(strcount, head->next);
}
if (head->result != STATE_GOTO) {
rptr->match_end = addString(strcount, head->match);
rptr->result = astosc[head->result].name;
rptr = doRegister(rptr);
} else {
(void) addString(strcount, head->match);
recurse(strcount+1, head->address);
strcount--;
}
return;
}
int
main(argc, argv)
int argc;
char *argv[];
{
state *head;
char *keybdPointer = (char *) 0;
char *commandName = argv[0];
int picky = 0;
while ((argc > 1) && (argv[1][0] == '-')) {
if (!strcmp(argv[1], "-picky")) {
picky++;
} else if (!strcmp(argv[1], "-shell")) {
toshell++;
} else {
fprintf(stderr, "usage: %s [-picky] [-shell] [keyboardname]\n",
commandName);
exit(1);
/*NOTREACHED*/
}
argv++;
argc--;
}
if (argc == 2) {
keybdPointer = argv[1];
} else if (argc > 2) {
fprintf(stderr, "usage: %s [-picky] [-shell] [keyboardname]\n",
commandName);
exit(1);
/*NOTREACHED*/
}
head = InitControl(keybdPointer, picky, ascii_to_index);
if (!head) {
return(1);
}
if (keybdPointer == 0) {
keybdPointer = getenv("KEYBD");
}
if (keybdPointer == 0) {
keybdPointer = getenv("TERM");
}
if (keybdPointer == 0) {
keybdPointer = "3a"; /* use 3a as the terminal */
}
if (toshell) {
printf("set noglob;\nsetenv MAP3270 ");
}
printf("%s{", keybdPointer);
numbchars = 2 + strlen(keybdPointer);
/* now, run through the table registering entries */
rptr = regstates + 2;
recurse(0, head);
/* now print them out */
for (rptr = regstates[0].forward; rptr->result != 0;
rptr = rptr->forward) {
printString(rptr->match_end, rptr->match_start, rptr->result);
}
if (toshell) {
printf("%c;};\nunset noglob;\n", '\\');
}
else {
printf(";}\n");
}
return(0);
}