n10.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
/*
n10.c
Device interfaces
*/
#include <limits.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef EUC
#ifdef NROFF
#include <stdlib.h>
#endif /* NROFF */
#endif /* EUC */
#include "tdef.h"
#include "ext.h"
#include "tw.h"
struct t t; /* terminal characteristics */
int dtab;
int plotmode;
int esct;
char xchname[4 * (NROFFCHARS-_SPECCHAR_ST)]; /* hy, em, etc. */
short xchtab[NROFFCHARS-_SPECCHAR_ST]; /* indexes into chname[] */
char *codestr;
char *chname = xchname;
short *chtab = xchtab;
int nchtab = 0;
int Inch;
int Hor;
int Vert;
int nfonts = 4; /* R, I, B, S */
/* these characters are used as various signals or values
* in miscellaneous places.
* values are set in specnames in t10.c
*/
int c_hyphen;
int c_emdash;
int c_rule;
int c_minus;
int c_fi;
int c_fl;
int c_ff;
int c_ffi;
int c_ffl;
int c_acute;
int c_grave;
int c_under;
int c_rooten;
int c_boxrule;
int c_lefthand;
int c_dagger;
int c_isalnum;
ptinit()
{
register int i, j;
register char *p, *cp, *q;
int nread, fd;
extern char *skipstr(), *getstr(), *getint();
extern char *setbrk();
struct stat stbuf;
char check[50];
strcat(termtab, devname);
if ((fd = open(termtab, 0)) < 0) {
errprint(gettext("cannot open %s"), termtab);
exit(-1);
}
fstat(fd, &stbuf);
codestr = setbrk((int) stbuf.st_size);
nread = read(fd, codestr, (int) stbuf.st_size);
close(fd);
p = codestr;
p = skipstr(p); /* skip over type, could check */
p = skipstr(p); p = getint(p, &t.bset);
p = skipstr(p); p = getint(p, &t.breset);
p = skipstr(p); p = getint(p, &t.Hor);
p = skipstr(p); p = getint(p, &t.Vert);
p = skipstr(p); p = getint(p, &t.Newline);
p = skipstr(p); p = getint(p, &t.Char);
p = skipstr(p); p = getint(p, &t.Em);
p = skipstr(p); p = getint(p, &t.Halfline);
p = skipstr(p); p = getint(p, &t.Adj);
p = skipstr(p); p = getstr(p, t.twinit = p);
p = skipstr(p); p = getstr(p, t.twrest = p);
p = skipstr(p); p = getstr(p, t.twnl = p);
p = skipstr(p); p = getstr(p, t.hlr = p);
p = skipstr(p); p = getstr(p, t.hlf = p);
p = skipstr(p); p = getstr(p, t.flr = p);
p = skipstr(p); p = getstr(p, t.bdon = p);
p = skipstr(p); p = getstr(p, t.bdoff = p);
p = skipstr(p); p = getstr(p, t.iton = p);
p = skipstr(p); p = getstr(p, t.itoff = p);
p = skipstr(p); p = getstr(p, t.ploton = p);
p = skipstr(p); p = getstr(p, t.plotoff = p);
p = skipstr(p); p = getstr(p, t.up = p);
p = skipstr(p); p = getstr(p, t.down = p);
p = skipstr(p); p = getstr(p, t.right = p);
p = skipstr(p); p = getstr(p, t.left = p);
getstr(p, check);
if (strcmp(check, "charset") != 0) {
errprint(gettext("device table apparently curdled"));
exit(1);
}
for (i = 0; i < _SPECCHAR_ST; i++)
t.width[i] = 1; /* default widths */
i = 0;
/* this ought to be a pointer array and in place in codestr */
cp = chname + 1; /* bug if starts at 0, in setch */
while (p < codestr + nread) {
while (*p == ' ' || *p == '\t' || *p == '\n')
p++;
if (i + _SPECCHAR_ST >= NROFFCHARS) {
errprint(gettext("too many names in charset for %s"),
termtab);
exit(1);
}
chtab[i] = cp - chname; /* index, not pointer */
*cp++ = *p++; /* 2-char names */
*cp++ = *p++;
*cp++ = '\0';
while (*p == ' ' || *p == '\t')
p++;
t.width[i+_SPECCHAR_ST] = *p++ - '0';
while (*p == ' ' || *p == '\t')
p++;
t.codetab[i] = p;
p = getstr(p, p); /* compress string */
p++;
i++;
nchtab++;
}
sps = EM;
ics = EM * 2;
dtab = 8 * t.Em;
for (i = 0; i < 16; i++)
tabtab[i] = dtab * (i + 1);
pl = 11 * INCH;
po = PO;
spacesz = SS;
lss = lss1 = VS;
ll = ll1 = lt = lt1 = LL;
smnt = nfonts = 5; /* R I B BI S */
specnames(); /* install names like "hyphen", etc. */
if (eqflg)
t.Adj = t.Hor;
}
char *skipstr(s) /* skip over leading space plus string */
char *s;
{
while (*s == ' ' || *s == '\t' || *s == '\n')
s++;
while (*s != ' ' && *s != '\t' && *s != '\n')
if (*s++ == '\\')
s++;
return s;
}
char *getstr(s, t) /* find next string in s, copy to t */
char *s, *t;
{
int quote = 0;
while (*s == ' ' || *s == '\t' || *s == '\n')
s++;
if (*s == '"') {
s++;
quote = 1;
}
for (;;) {
if (quote && *s == '"') {
s++;
break;
}
if (!quote && (*s == ' ' || *s == '\t' || *s == '\n'))
break;
if (*s != '\\')
*t++ = *s++;
else {
s++; /* skip \\ */
if (isdigit((unsigned char)s[0]) &&
isdigit((unsigned char)s[1]) &&
isdigit((unsigned char)s[2])) {
*t++ = (s[0]-'0')<<6 | (s[1]-'0')<<3 | s[2]-'0';
s += 2;
} else if (isdigit((unsigned char)s[0])) {
*t++ = *s - '0';
} else if (*s == 'b') {
*t++ = '\b';
} else if (*s == 'n') {
*t++ = '\n';
} else if (*s == 'r') {
*t++ = '\r';
} else if (*s == 't') {
*t++ = '\t';
} else {
*t++ = *s;
}
s++;
}
}
*t = '\0';
return s;
}
char *getint(s, pn) /* find integer at s */
char *s;
int *pn;
{
int base;
while (*s == ' ' || *s == '\t' || *s == '\n')
s++;
base = (*s == '0') ? 8 : 10;
*pn = 0;
while (isdigit((unsigned char)*s))
*pn = base * *pn + *s++ - '0';
return s;
}
specnames()
{
static struct {
int *n;
char *v;
} spnames[] = {
&c_hyphen, "hy",
&c_emdash, "em",
&c_rule, "ru",
&c_minus, "\\-",
&c_fi, "fi",
&c_fl, "fl",
&c_ff, "ff",
&c_ffi, "Fi",
&c_ffl, "Fl",
&c_acute, "aa",
&c_grave, "ga",
&c_under, "ul",
&c_rooten, "rn",
&c_boxrule, "br",
&c_lefthand, "lh",
&c_isalnum, "__",
0, 0
};
int i;
for (i = 0; spnames[i].n; i++)
*spnames[i].n = findch(spnames[i].v);
if (c_isalnum == 0)
c_isalnum = NROFFCHARS;
}
findch(s) /* find char s in chname */
register char *s;
{
register int i;
for (i = 0; chtab[i] != 0; i++)
if (strcmp(s, &chname[chtab[i]]) == 0)
return(i + _SPECCHAR_ST);
return(0);
}
twdone()
{
int waitf;
obufp = obuf;
if (t.twrest) /* has ptinit() been done yet? */
oputs(t.twrest);
flusho();
if (pipeflg) {
close(ptid);
wait(&waitf);
}
restore_tty();
}
ptout(i)
tchar i;
{
*olinep++ = i;
if (olinep >= &oline[LNSIZE])
olinep--;
if (cbits(i) != '\n')
return;
olinep--;
lead += dip->blss + lss - t.Newline;
dip->blss = 0;
esct = esc = 0;
if (olinep > oline) {
move();
ptout1();
oputs(t.twnl);
} else {
lead += t.Newline;
move();
}
lead += dip->alss;
dip->alss = 0;
olinep = oline;
}
ptout1()
{
register k;
register char *codep;
#ifdef EUC
#ifdef NROFF
register int cnt;
register tchar *qq;
#endif /* NROFF */
#endif /* EUC */
extern char *plot();
int w, j, phyw;
#ifdef EUC
#ifdef NROFF
int jj;
#endif /* NROFF */
#endif /* EUC */
tchar * q, i;
static int oxfont = FT; /* start off in roman */
for (q = oline; q < olinep; q++) {
i = *q;
if (ismot(i)) {
j = absmot(i);
if (isnmot(i))
j = -j;
if (isvmot(i))
lead += j;
else
esc += j;
continue;
}
if ((k = cbits(i)) <= 040) {
switch (k) {
case ' ': /*space*/
esc += t.Char;
break;
case '\033':
case '\007':
case '\016':
case '\017':
oput(k);
break;
}
continue;
}
#ifdef EUC
#ifdef NROFF
if (multi_locale && ((k & MBMASK) || (k & CSMASK))) {
cnt = 0;
while ((*q & MBMASK1) && (cnt + 1 < (int)MB_CUR_MAX)) {
cnt++;
q++;
}
if ((cnt && !(*q & CSMASK)) || (*q & MBMASK1)) {
q -= cnt;
cnt = 0;
*q &= ~0xfe00;
}
k = cbits(i = *q);
phyw = w = t.Char * csi_width[cs(i)];
} else {
#endif /* NROFF */
#endif /* EUC */
phyw = w = t.Char * t.width[k];
if (iszbit(i))
w = 0;
#ifdef EUC
#ifdef NROFF
}
#endif /* NROFF */
#endif /* EUC */
if (esc || lead)
move();
esct += w;
#ifndef EUC
xfont = fbits(i);
#else
#ifndef NROFF
xfont = fbits(i);
#else
#endif /* NROFF */
xfont = (fbits(*q) % NFONT); /* for invalid code */
#endif /* EUC */
if (xfont != oxfont) {
if (oxfont == ulfont || oxfont == BIFONT)
oputs(t.itoff);
if (bdtab[oxfont])
oputs(t.bdoff);
if (xfont == ulfont || xfont == BIFONT)
oputs(t.iton);
if (bdtab[xfont])
oputs(t.bdon);
oxfont = xfont;
}
if ((xfont == ulfont || xfont == BIFONT) && !(*t.iton & 0377)) {
for (j = w / t.Char; j > 0; j--)
oput('_');
for (j = w / t.Char; j > 0; j--)
oput('\b');
}
if ((j = bdtab[xfont]) && !(*t.bdon & 0377))
j++;
else
j = 1; /* number of overstrikes for bold */
if (k < 128) { /* ordinary ascii */
oput(k);
while (--j > 0) {
oput('\b');
oput(k);
}
#ifdef EUC
#ifdef NROFF
} else if (multi_locale && (k & CSMASK)) {
for (qq = q - cnt; qq <= q;)
oput(cbits(*qq++));
while (--j > 0) {
for (jj = cnt + 1; jj > 0; jj--)
oput('\b');
for (qq = q - cnt; qq <= q;)
oput(cbits(*qq++));
}
} else if (k < 256) {
/*
* Invalid character for C locale or
* non-printable 8-bit single byte
* character such as <no-break-sp>
* in ISO-8859-1
*/
oput(k);
while (--j > 0) {
oput('\b');
oput(k);
}
#endif /* NROFF */
#endif /* EUC */
} else if (k >= nchtab + _SPECCHAR_ST) {
oput(k - nchtab - _SPECCHAR_ST);
} else {
int oj = j;
codep = t.codetab[k-_SPECCHAR_ST];
while (*codep != 0) {
if (*codep & 0200) {
codep = plot(codep);
oput(' ');
} else {
if (*codep == '%') /* escape */
codep++;
oput(*codep);
if (*codep == '\033')
oput(*++codep);
else if (*codep != '\b')
for (j = oj; --j > 0; ) {
oput('\b');
oput(*codep);
}
codep++;
}
}
}
if (!w)
for (j = phyw / t.Char; j > 0; j--)
oput('\b');
}
}
char *plot(x)
char *x;
{
register int i;
register char *j, *k;
oputs(t.ploton);
k = x;
if ((*k & 0377) == 0200)
k++;
for (; *k; k++) {
if (*k == '%') { /* quote char within plot mode */
oput(*++k);
} else if (*k & 0200) {
if (*k & 0100) {
if (*k & 040)
j = t.up;
else
j = t.down;
} else {
if (*k & 040)
j = t.left;
else
j = t.right;
}
if ((i = *k & 037) == 0) { /* 2nd 0200 turns it off */
++k;
break;
}
while (i--)
oputs(j);
} else
oput(*k);
}
oputs(t.plotoff);
return(k);
}
move()
{
register k;
register char *i, *j;
char *p, *q;
int iesct, dt;
iesct = esct;
if (esct += esc)
i = "\0";
else
i = "\n\0";
j = t.hlf;
p = t.right;
q = t.down;
if (lead) {
if (lead < 0) {
lead = -lead;
i = t.flr;
/* if(!esct)i = t.flr; else i = "\0";*/
j = t.hlr;
q = t.up;
}
if (*i & 0377) {
k = lead / t.Newline;
lead = lead % t.Newline;
while (k--)
oputs(i);
}
if (*j & 0377) {
k = lead / t.Halfline;
lead = lead % t.Halfline;
while (k--)
oputs(j);
} else { /* no half-line forward, not at line begining */
k = lead / t.Newline;
lead = lead % t.Newline;
if (k > 0)
esc = esct;
i = "\n";
while (k--)
oputs(i);
}
}
if (esc) {
if (esc < 0) {
esc = -esc;
j = "\b";
p = t.left;
} else {
j = " ";
if (hflg)
while ((dt = dtab - (iesct % dtab)) <= esc) {
if (dt % t.Em)
break;
oput(TAB);
esc -= dt;
iesct += dt;
}
}
k = esc / t.Em;
esc = esc % t.Em;
while (k--)
oputs(j);
}
if ((*t.ploton & 0377) && (esc || lead)) {
oputs(t.ploton);
esc /= t.Hor;
lead /= t.Vert;
while (esc--)
oputs(p);
while (lead--)
oputs(q);
oputs(t.plotoff);
}
esc = lead = 0;
}
ptlead()
{
move();
}
dostop()
{
char junk;
flusho();
read(2, &junk, 1);
}
newpage(){;}
pttrailer(){;}