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BSD 4_3_Tahoe release
[unix-history] / usr / src / usr.bin / deroff.c
#ifndef lint
static char sccsid[] = "@(#)deroff.c 4.7 (Berkeley) 88/04/24";
#endif not lint
#include <stdio.h>
/*
* Deroff command -- strip troff, eqn, and Tbl sequences from
* a file. Has two flags argument, -w, to cause output one word per line
* rather than in the original format.
* -mm (or -ms) causes the corresponding macro's to be interpreted
* so that just sentences are output
* -ml also gets rid of lists.
* Deroff follows .so and .nx commands, removes contents of macro
* definitions, equations (both .EQ ... .EN and $...$),
* Tbl command sequences, and Troff backslash constructions.
*
* All input is through the Cget macro;
* the most recently read character is in c.
*
* Modified by Robert Henry to process -me and -man macros.
*/
#define Cget ( (c=getc(infile)) == EOF ? eof() : ((c==ldelim)&&(filesp==files) ? skeqn() : c) )
#define C1get ( (c=getc(infile)) == EOF ? eof() : c)
#ifdef DEBUG
# define C _C()
# define C1 _C1()
#else not DEBUG
# define C Cget
# define C1 C1get
#endif not DEBUG
#define SKIP while(C != '\n')
#define SKIP_TO_COM SKIP; SKIP; pc=c; while(C != '.' || pc != '\n' || C > 'Z')pc=c
#define YES 1
#define NO 0
#define MS 0 /* -ms */
#define MM 1 /* -mm */
#define ME 2 /* -me */
#define MA 3 /* -man */
#ifdef DEBUG
char *mactab[] = {"-ms", "-mm", "-me", "-ma"};
#endif DEBUG
#define ONE 1
#define TWO 2
#define NOCHAR -2
#define SPECIAL 0
#define APOS 1
#define PUNCT 2
#define DIGIT 3
#define LETTER 4
int wordflag;
int msflag; /* processing a source written using a mac package */
int mac; /* which package */
int disp;
int parag;
int inmacro;
int intable;
int keepblock; /* keep blocks of text; normally false when msflag */
char chars[128]; /* SPECIAL, PUNCT, APOS, DIGIT, or LETTER */
char line[512];
char *lp;
int c;
int pc;
int ldelim;
int rdelim;
int argc;
char **argv;
char fname[50];
FILE *files[15];
FILE **filesp;
FILE *infile;
FILE *opn();
/*
* Flags for matching conditions other than
* the macro name
*/
#define NONE 0
#define FNEST 1 /* no nested files */
#define NOMAC 2 /* no macro */
#define MAC 3 /* macro */
#define PARAG 4 /* in a paragraph */
#define MSF 5 /* msflag is on */
#define NBLK 6 /* set if no blocks to be kept */
/*
* Return codes from macro minions, determine where to jump,
* how to repeat/reprocess text
*/
#define COMX 1 /* goto comx */
#define COM 2 /* goto com */
\f
main(ac, av)
int ac;
char **av;
{
register int i;
int errflg = 0;
register optchar;
FILE *opn();
int kflag = NO;
char *p;
wordflag = NO;
msflag = NO;
mac = ME;
disp = NO;
parag = NO;
inmacro = NO;
intable = NO;
ldelim = NOCHAR;
rdelim = NOCHAR;
keepblock = YES;
for(argc = ac - 1, argv = av + 1;
( (argc > 0)
&& (argv[0][0] == '-')
&& (argv[0][1] != '\0') );
--argc, ++argv
){
for(p = argv[0]+1; *p; ++p) {
switch(*p) {
case 'p':
parag=YES;
break;
case 'k':
kflag = YES;
break;
case 'w':
wordflag = YES;
kflag = YES;
break;
case 'm':
msflag = YES;
keepblock = NO;
switch(p[1]){
case 'm': mac = MM; p++; break;
case 's': mac = MS; p++; break;
case 'e': mac = ME; p++; break;
case 'a': mac = MA; p++; break;
case 'l': disp = YES; p++; break;
default: errflg++; break;
}
break;
default:
errflg++;
}
}
}
if (kflag)
keepblock = YES;
if (errflg)
fatal("usage: deroff [ -w ] [ -k] [ -m (a e m s l) ] [ file ] ... \n",
(char *) NULL);
#ifdef DEBUG
printf("msflag = %d, mac = %s, keepblock = %d, disp = %d\n",
msflag, mactab[mac], keepblock, disp);
#endif DEBUG
if (argc == 0){
infile = stdin;
} else {
infile = opn(argv[0]);
--argc;
++argv;
}
files[0] = infile;
filesp = &files[0];
for(i='a'; i<='z' ; ++i)
chars[i] = LETTER;
for(i='A'; i<='Z'; ++i)
chars[i] = LETTER;
for(i='0'; i<='9'; ++i)
chars[i] = DIGIT;
chars['\''] = APOS;
chars['&'] = APOS;
chars['.'] = PUNCT;
chars[','] = PUNCT;
chars[';'] = PUNCT;
chars['?'] = PUNCT;
chars[':'] = PUNCT;
work();
}
char *calloc();
skeqn()
{
while((c = getc(infile)) != rdelim)
if(c == EOF)
c = eof();
else if(c == '"')
while( (c = getc(infile)) != '"')
if(c == EOF)
c = eof();
else if(c == '\\')
if((c = getc(infile)) == EOF)
c = eof();
if(msflag)return(c='x');
return(c = ' ');
}
FILE *opn(p)
register char *p;
{
FILE *fd;
if( (fd = fopen(p, "r")) == NULL) {
fprintf(stderr, "Deroff: ");
perror(p);
exit(1);
}
return(fd);
}
eof()
{
if(infile != stdin)
fclose(infile);
if(filesp > files)
infile = *--filesp;
else if (argc > 0) {
infile = opn(argv[0]);
--argc;
++argv;
} else
exit(0);
return(C);
}
getfname()
{
register char *p;
struct chain {
struct chain *nextp;
char *datap;
} *chainblock;
register struct chain *q;
static struct chain *namechain = NULL;
char *copys();
while(C == ' ') ;
for(p = fname ; (*p=c)!= '\n' && c!=' ' && c!='\t' && c!='\\' ; ++p)
C;
*p = '\0';
while(c != '\n')
C;
/* see if this name has already been used */
for(q = namechain ; q; q = q->nextp)
if( ! strcmp(fname, q->datap))
{
fname[0] = '\0';
return;
}
q = (struct chain *) calloc(1, sizeof(*chainblock));
q->nextp = namechain;
q->datap = copys(fname);
namechain = q;
}
fatal(s,p)
char *s, *p;
{
fprintf(stderr, "Deroff: ");
fprintf(stderr, s, p);
exit(1);
}
/*ARGSUSED*/
textline(str, constant)
char *str;
int constant;
{
if (wordflag) {
msputwords(0);
return;
}
puts(str);
}
work()
{
for( ;; )
{
C;
#ifdef FULLDEBUG
printf("Starting work with `%c'\n", c);
#endif FULLDEBUG
if(c == '.' || c == '\'')
comline();
else
regline(textline, TWO);
}
}
regline(pfunc, constant)
int (*pfunc)();
int constant;
{
line[0] = c;
lp = line;
for( ; ; )
{
if(c == '\\') {
*lp = ' ';
backsl();
}
if(c == '\n')
break;
if(intable && c=='T') {
*++lp = C;
if(c=='{' || c=='}') {
lp[-1] = ' ';
*lp = C;
}
} else {
*++lp = C;
}
}
*lp = '\0';
if(line[0] != '\0')
(*pfunc)(line, constant);
}
macro()
{
if(msflag){
do {
SKIP;
} while(C!='.' || C!='.' || C=='.'); /* look for .. */
if(c != '\n')SKIP;
return;
}
SKIP;
inmacro = YES;
}
tbl()
{
while(C != '.');
SKIP;
intable = YES;
}
stbl()
{
while(C != '.');
SKIP_TO_COM;
if(c != 'T' || C != 'E'){
SKIP;
pc=c;
while(C != '.' || pc != '\n' || C != 'T' || C != 'E')pc=c;
}
}
eqn()
{
register int c1, c2;
register int dflg;
char last;
last=0;
dflg = 1;
SKIP;
for( ;;)
{
if(C1 == '.' || c == '\'')
{
while(C1==' ' || c=='\t')
;
if(c=='E' && C1=='N')
{
SKIP;
if(msflag && dflg){
putchar('x');
putchar(' ');
if(last){
putchar(last);
putchar('\n');
}
}
return;
}
}
else if(c == 'd') /* look for delim */
{
if(C1=='e' && C1=='l')
if( C1=='i' && C1=='m')
{
while(C1 == ' ');
if((c1=c)=='\n' || (c2=C1)=='\n'
|| (c1=='o' && c2=='f' && C1=='f') )
{
ldelim = NOCHAR;
rdelim = NOCHAR;
}
else {
ldelim = c1;
rdelim = c2;
}
}
dflg = 0;
}
if(c != '\n') while(C1 != '\n'){
if(chars[c] == PUNCT)last = c;
else if(c != ' ')last = 0;
}
}
}
backsl() /* skip over a complete backslash construction */
{
int bdelim;
sw:
switch(C)
{
case '"':
SKIP;
return;
case 's':
if(C == '\\') backsl();
else {
while(C>='0' && c<='9') ;
ungetc(c,infile);
c = '0';
}
--lp;
return;
case 'f':
case 'n':
case '*':
if(C != '(')
return;
case '(':
if(msflag){
if(C == 'e'){
if(C == 'm'){
*lp = '-';
return;
}
}
else if(c != '\n')C;
return;
}
if(C != '\n') C;
return;
case '$':
C; /* discard argument number */
return;
case 'b':
case 'x':
case 'v':
case 'h':
case 'w':
case 'o':
case 'l':
case 'L':
if( (bdelim=C) == '\n')
return;
while(C!='\n' && c!=bdelim)
if(c == '\\') backsl();
return;
case '\\':
if(inmacro)
goto sw;
default:
return;
}
}
char *copys(s)
register char *s;
{
register char *t, *t0;
if( (t0 = t = calloc( (unsigned)(strlen(s)+1), sizeof(*t) ) ) == NULL)
fatal("Cannot allocate memory", (char *) NULL);
while( *t++ = *s++ )
;
return(t0);
}
sce()
{
register char *ap;
register int n, i;
char a[10];
for(ap=a;C != '\n';ap++){
*ap = c;
if(ap == &a[9]){
SKIP;
ap=a;
break;
}
}
if(ap != a)n = atoi(a);
else n = 1;
for(i=0;i<n;){
if(C == '.'){
if(C == 'c'){
if(C == 'e'){
while(C == ' ');
if(c == '0'){
SKIP;
break;
}
else SKIP;
}
else SKIP;
}
else if(c == 'P' || C == 'P'){
if(c != '\n')SKIP;
break;
}
else if(c != '\n')SKIP;
}
else {
SKIP;
i++;
}
}
}
refer(c1)
{
register int c2;
if(c1 != '\n')
SKIP;
while(1){
if(C != '.')
SKIP;
else {
if(C != ']')
SKIP;
else {
while(C != '\n')
c2=c;
if(chars[c2] == PUNCT)putchar(c2);
return;
}
}
}
}
inpic()
{
register int c1;
register char *p1;
SKIP;
p1 = line;
c = '\n';
while(1){
c1 = c;
if(C == '.' && c1 == '\n'){
if(C != 'P'){
if(c == '\n')continue;
else { SKIP; c='\n'; continue;}
}
if(C != 'E'){
if(c == '\n')continue;
else { SKIP; c='\n';continue; }
}
SKIP;
return;
}
else if(c == '\"'){
while(C != '\"'){
if(c == '\\'){
if(C == '\"')continue;
ungetc(c,infile);
backsl();
}
else *p1++ = c;
}
*p1++ = ' ';
}
else if(c == '\n' && p1 != line){
*p1 = '\0';
if(wordflag)msputwords(NO);
else {
puts(line);
putchar('\n');
}
p1 = line;
}
}
}
#ifdef DEBUG
_C1()
{
return(C1get);
}
_C()
{
return(Cget);
}
#endif DEBUG
\f
/*
* Macro processing
*
* Macro table definitions
*/
#define reg register
typedef int pacmac; /* compressed macro name */
int argconcat = 0; /* concat arguments together (-me only) */
#define tomac(c1, c2) ((((c1) & 0xFF) << 8) | ((c2) & 0xFF))
#define frommac(src, c1, c2) (((c1)=((src)>>8)&0xFF),((c2) =(src)&0xFF))
struct mactab{
int condition;
pacmac macname;
int (*func)();
};
struct mactab troffmactab[];
struct mactab ppmactab[];
struct mactab msmactab[];
struct mactab mmmactab[];
struct mactab memactab[];
struct mactab manmactab[];
/*
* macro table initialization
*/
#define M(cond, c1, c2, func) {cond, tomac(c1, c2), func}
/*
* Put out a macro line, using ms and mm conventions.
*/
msputmac(s, constant)
register char *s;
int constant;
{
register char *t;
register found;
int last;
found = 0;
if (wordflag) {
msputwords(YES);
return;
}
while(*s)
{
while(*s==' ' || *s=='\t')
putchar(*s++);
for(t = s ; *t!=' ' && *t!='\t' && *t!='\0' ; ++t)
;
if(*s == '\"')s++;
if(t>s+constant && chars[ s[0] ]==LETTER && chars[ s[1] ]==LETTER){
while(s < t)
if(*s == '\"')s++;
else
putchar(*s++);
last = *(t-1);
found++;
}
else if(found && chars[ s[0] ] == PUNCT && s[1] == '\0')
putchar(*s++);
else{
last = *(t-1);
s = t;
}
}
putchar('\n');
if(msflag && chars[last] == PUNCT){
putchar(last);
putchar('\n');
}
}
/*
* put out words (for the -w option) with ms and mm conventions
*/
msputwords(macline)
int macline; /* is this is a macro line */
{
register char *p, *p1;
int i, nlet;
for(p1 = line ; ;) {
/*
* skip initial specials ampersands and apostrophes
*/
while( chars[*p1] < DIGIT)
if(*p1++ == '\0') return;
nlet = 0;
for(p = p1 ; (i=chars[*p]) != SPECIAL ; ++p)
if(i == LETTER) ++nlet;
if (nlet > 1 && chars[p1[0]] == LETTER) {
/*
* delete trailing ampersands and apostrophes
*/
while( (i=chars[p[-1]]) == PUNCT || i == APOS )
--p;
while(p1 < p)
putchar(*p1++);
putchar('\n');
} else {
p1 = p;
}
}
}
/*
* put out a macro using the me conventions
*/
#define SKIPBLANK(cp) while(*cp == ' ' || *cp == '\t') { cp++; }
#define SKIPNONBLANK(cp) while(*cp !=' ' && *cp !='\cp' && *cp !='\0') { cp++; }
meputmac(cp, constant)
reg char *cp;
int constant;
{
reg char *np;
int found;
int argno;
int last;
int inquote;
if (wordflag) {
meputwords(YES);
return;
}
for (argno = 0; *cp; argno++){
SKIPBLANK(cp);
inquote = (*cp == '"');
if (inquote)
cp++;
for (np = cp; *np; np++){
switch(*np){
case '\n':
case '\0': break;
case '\t':
case ' ': if (inquote) {
continue;
} else {
goto endarg;
}
case '"': if(inquote && np[1] == '"'){
strcpy(np, np + 1);
np++;
continue;
} else {
*np = ' '; /* bye bye " */
goto endarg;
}
default: continue;
}
}
endarg: ;
/*
* cp points at the first char in the arg
* np points one beyond the last char in the arg
*/
if ((argconcat == 0) || (argconcat != argno)) {
putchar(' ');
}
#ifdef FULLDEBUG
{
char *p;
printf("[%d,%d: ", argno, np - cp);
for (p = cp; p < np; p++) {
putchar(*p);
}
printf("]");
}
#endif FULLDEBUG
/*
* Determine if the argument merits being printed
*
* constant is the cut off point below which something
* is not a word.
*/
if ( ( (np - cp) > constant)
&& ( inquote
|| (chars[cp[0]] == LETTER)) ){
for (cp = cp; cp < np; cp++){
putchar(*cp);
}
last = np[-1];
found++;
} else
if(found && (np - cp == 1) && chars[*cp] == PUNCT){
putchar(*cp);
} else {
last = np[-1];
}
cp = np;
}
if(msflag && chars[last] == PUNCT)
putchar(last);
putchar('\n');
}
/*
* put out words (for the -w option) with ms and mm conventions
*/
meputwords(macline)
int macline;
{
msputwords(macline);
}
/*
*
* Skip over a nested set of macros
*
* Possible arguments to noblock are:
*
* fi end of unfilled text
* PE pic ending
* DE display ending
*
* for ms and mm only:
* KE keep ending
*
* NE undocumented match to NS (for mm?)
* LE mm only: matches RL or *L (for lists)
*
* for me:
* ([lqbzcdf]
*/
noblock(a1, a2)
char a1, a2;
{
register int c1,c2;
register int eqnf;
int lct;
lct = 0;
eqnf = 1;
SKIP;
while(1){
while(C != '.')
if(c == '\n')
continue;
else
SKIP;
if((c1=C) == '\n')
continue;
if((c2=C) == '\n')
continue;
if(c1==a1 && c2 == a2){
SKIP;
if(lct != 0){
lct--;
continue;
}
if(eqnf)
putchar('.');
putchar('\n');
return;
} else if(a1 == 'L' && c2 == 'L'){
lct++;
SKIP;
}
/*
* equations (EQ) nested within a display
*/
else if(c1 == 'E' && c2 == 'Q'){
if ( (mac == ME && a1 == ')')
|| (mac != ME && a1 == 'D') ) {
eqn();
eqnf=0;
}
}
/*
* turning on filling is done by the paragraphing
* macros
*/
else if(a1 == 'f') { /* .fi */
if ( (mac == ME && (c2 == 'h' || c2 == 'p'))
||(mac != ME && (c1 == 'P' || c2 == 'P')) ) {
SKIP;
return;
}
} else {
SKIP;
}
}
}
EQ()
{
eqn();
return(0);
}
domacro()
{
macro();
return(0);
}
PS()
{
for (C; c == ' ' || c == '\t'; C);
if (c == '<') { /* ".PS < file" -- don't expect a .PE */
SKIP;
return(0);
}
if (!msflag) {
inpic();
} else {
noblock('P', 'E');
}
return(0);
}
skip()
{
SKIP;
return(0);
}
intbl()
{
if(msflag){
stbl();
}
else tbl();
return(0);
}
outtbl(){ intable = NO; }
so()
{
getfname();
if( fname[0] )
infile = *++filesp = opn( fname );
return(0);
}
nx()
{
getfname();
if(fname[0] == '\0') exit(0);
if(infile != stdin)
fclose(infile);
infile = *filesp = opn(fname);
return(0);
}
skiptocom(){ SKIP_TO_COM; return(COMX); }
PP(c12)
pacmac c12;
{
int c1, c2;
frommac(c12, c1, c2);
printf(".%c%c",c1,c2);
while(C != '\n')putchar(c);
putchar('\n');
return(0);
}
AU()
{
if(mac==MM) {
return(0);
} else {
SKIP_TO_COM;
return(COMX);
}
}
SH(c12)
pacmac c12;
{
int c1, c2;
frommac(c12, c1, c2);
if(parag){
printf(".%c%c",c1,c2);
while(C != '\n')putchar(c);
putchar(c);
putchar('!');
while(1){
while(C != '\n')putchar(c);
putchar('\n');
if(C == '.')
return(COM);
putchar('!');
putchar(c);
}
/*NOTREACHED*/
} else {
SKIP_TO_COM;
return(COMX);
}
}
UX()
{
if(wordflag)
printf("UNIX\n");
else
printf("UNIX ");
return(0);
}
MMHU(c12)
pacmac c12;
{
int c1, c2;
frommac(c12, c1, c2);
if(parag){
printf(".%c%c",c1,c2);
while(C != '\n')putchar(c);
putchar('\n');
} else {
SKIP;
}
return(0);
}
mesnblock(c12)
pacmac c12;
{
int c1, c2;
frommac(c12, c1, c2);
noblock(')',c2);
return(0);
}
mssnblock(c12)
pacmac c12;
{
int c1, c2;
frommac(c12, c1, c2);
noblock(c1,'E');
return(0);
}
nf()
{
noblock('f','i');
return(0);
}
ce()
{
sce();
return(0);
}
meip(c12)
pacmac c12;
{
if(parag)
mepp(c12);
else if (wordflag) /* save the tag */
regline(meputmac, ONE);
else {
SKIP;
}
return(0);
}
/*
* only called for -me .pp or .sh, when parag is on
*/
mepp(c12)
pacmac c12;
{
PP(c12); /* eats the line */
return(0);
}
/*
* Start of a section heading; output the section name if doing words
*/
mesh(c12)
pacmac c12;
{
if (parag)
mepp(c12);
else if (wordflag)
defcomline(c12);
else {
SKIP;
}
return(0);
}
/*
* process a font setting
*/
mefont(c12)
pacmac c12;
{
argconcat = 1;
defcomline(c12);
argconcat = 0;
return(0);
}
manfont(c12)
pacmac c12;
{
return(mefont(c12));
}
manpp(c12)
pacmac c12;
{
return(mepp(c12));
}
defcomline(c12)
pacmac c12;
{
int c1, c2;
frommac(c12, c1, c2);
if(msflag && mac==MM && c2=='L'){
if(disp || c1 == 'R') {
noblock('L','E');
} else {
SKIP;
putchar('.');
}
}
else if(c1=='.' && c2=='.'){
if(msflag){
SKIP;
return;
}
while(C == '.')
/*VOID*/;
}
++inmacro;
/*
* Process the arguments to the macro
*/
switch(mac){
default:
case MM:
case MS:
if(c1 <= 'Z' && msflag)
regline(msputmac, ONE);
else
regline(msputmac, TWO);
break;
case ME:
regline(meputmac, ONE);
break;
}
--inmacro;
}
comline()
{
reg int c1;
reg int c2;
pacmac c12;
reg int mid;
int lb, ub;
int hit;
static int tabsize = 0;
static struct mactab *mactab = (struct mactab *)0;
reg struct mactab *mp;
if (mactab == 0){
buildtab(&mactab, &tabsize);
}
com:
while(C==' ' || c=='\t')
;
comx:
if( (c1=c) == '\n')
return;
c2 = C;
if(c1=='.' && c2 !='.')
inmacro = NO;
if(msflag && c1 == '['){
refer(c2);
return;
}
if(parag && mac==MM && c1 == 'P' && c2 == '\n'){
printf(".P\n");
return;
}
if(c2 == '\n')
return;
/*
* Single letter macro
*/
if (mac == ME && (c2 == ' ' || c2 == '\t') )
c2 = ' ';
c12 = tomac(c1, c2);
/*
* binary search through the table of macros
*/
lb = 0;
ub = tabsize - 1;
while(lb <= ub){
mid = (ub + lb) / 2;
mp = &mactab[mid];
if (mp->macname < c12)
lb = mid + 1;
else if (mp->macname > c12)
ub = mid - 1;
else {
hit = 1;
#ifdef FULLDEBUG
printf("preliminary hit macro %c%c ", c1, c2);
#endif FULLDEBUG
switch(mp->condition){
case NONE: hit = YES; break;
case FNEST: hit = (filesp == files); break;
case NOMAC: hit = !inmacro; break;
case MAC: hit = inmacro; break;
case PARAG: hit = parag; break;
case NBLK: hit = !keepblock; break;
default: hit = 0;
}
if (hit) {
#ifdef FULLDEBUG
printf("MATCH\n");
#endif FULLDEBUG
switch( (*(mp->func))(c12) ) {
default: return;
case COMX: goto comx;
case COM: goto com;
}
}
#ifdef FULLDEBUG
printf("FAIL\n");
#endif FULLDEBUG
break;
}
}
defcomline(c12);
}
int macsort(p1, p2)
struct mactab *p1, *p2;
{
return(p1->macname - p2->macname);
}
int sizetab(mp)
reg struct mactab *mp;
{
reg int i;
i = 0;
if (mp){
for (; mp->macname; mp++, i++)
/*VOID*/ ;
}
return(i);
}
struct mactab *macfill(dst, src)
reg struct mactab *dst;
reg struct mactab *src;
{
if (src) {
while(src->macname){
*dst++ = *src++;
}
}
return(dst);
}
buildtab(r_back, r_size)
struct mactab **r_back;
int *r_size;
{
int size;
struct mactab *p, *p1, *p2;
struct mactab *back;
size = sizetab(troffmactab);
size += sizetab(ppmactab);
p1 = p2 = (struct mactab *)0;
if (msflag){
switch(mac){
case ME: p1 = memactab; break;
case MM: p1 = msmactab;
p2 = mmmactab; break;
case MS: p1 = msmactab; break;
case MA: p1 = manmactab; break;
default: break;
}
}
size += sizetab(p1);
size += sizetab(p2);
back = (struct mactab *)calloc(size+2, sizeof(struct mactab));
p = macfill(back, troffmactab);
p = macfill(p, ppmactab);
p = macfill(p, p1);
p = macfill(p, p2);
qsort(back, size, sizeof(struct mactab), macsort);
*r_size = size;
*r_back = back;
}
/*
* troff commands
*/
struct mactab troffmactab[] = {
M(NONE, '\\','"', skip), /* comment */
M(NOMAC, 'd','e', domacro), /* define */
M(NOMAC, 'i','g', domacro), /* ignore till .. */
M(NOMAC, 'a','m', domacro), /* append macro */
M(NBLK, 'n','f', nf), /* filled */
M(NBLK, 'c','e', ce), /* centered */
M(NONE, 's','o', so), /* source a file */
M(NONE, 'n','x', nx), /* go to next file */
M(NONE, 't','m', skip), /* print string on tty */
M(NONE, 'h','w', skip), /* exception hyphen words */
M(NONE, 0,0, 0)
};
/*
* Preprocessor output
*/
struct mactab ppmactab[] = {
M(FNEST, 'E','Q', EQ), /* equation starting */
M(FNEST, 'T','S', intbl), /* table starting */
M(FNEST, 'T','C', intbl), /* alternative table? */
M(FNEST, 'T','&', intbl), /* table reformatting */
M(NONE, 'T','E', outtbl),/* table ending */
M(NONE, 'P','S', PS), /* picture starting */
M(NONE, 0,0, 0)
};
/*
* Particular to ms and mm
*/
struct mactab msmactab[] = {
M(NONE, 'T','L', skiptocom), /* title follows */
M(NONE, 'F','S', skiptocom), /* start footnote */
M(NONE, 'O','K', skiptocom), /* Other kws */
M(NONE, 'N','R', skip), /* undocumented */
M(NONE, 'N','D', skip), /* use supplied date */
M(PARAG, 'P','P', PP), /* begin parag */
M(PARAG, 'I','P', PP), /* begin indent parag, tag x */
M(PARAG, 'L','P', PP), /* left blocked parag */
M(NONE, 'A','U', AU), /* author */
M(NONE, 'A','I', AU), /* authors institution */
M(NONE, 'S','H', SH), /* section heading */
M(NONE, 'S','N', SH), /* undocumented */
M(NONE, 'U','X', UX), /* unix */
M(NBLK, 'D','S', mssnblock), /* start display text */
M(NBLK, 'K','S', mssnblock), /* start keep */
M(NBLK, 'K','F', mssnblock), /* start float keep */
M(NONE, 0,0, 0)
};
struct mactab mmmactab[] = {
M(NONE, 'H',' ', MMHU), /* -mm ? */
M(NONE, 'H','U', MMHU), /* -mm ? */
M(PARAG, 'P',' ', PP), /* paragraph for -mm */
M(NBLK, 'N','S', mssnblock), /* undocumented */
M(NONE, 0,0, 0)
};
struct mactab memactab[] = {
M(PARAG, 'p','p', mepp),
M(PARAG, 'l','p', mepp),
M(PARAG, 'n','p', mepp),
M(NONE, 'i','p', meip),
M(NONE, 's','h', mesh),
M(NONE, 'u','h', mesh),
M(NBLK, '(','l', mesnblock),
M(NBLK, '(','q', mesnblock),
M(NBLK, '(','b', mesnblock),
M(NBLK, '(','z', mesnblock),
M(NBLK, '(','c', mesnblock),
M(NBLK, '(','d', mesnblock),
M(NBLK, '(','f', mesnblock),
M(NBLK, '(','x', mesnblock),
M(NONE, 'r',' ', mefont),
M(NONE, 'i',' ', mefont),
M(NONE, 'b',' ', mefont),
M(NONE, 'u',' ', mefont),
M(NONE, 'q',' ', mefont),
M(NONE, 'r','b', mefont),
M(NONE, 'b','i', mefont),
M(NONE, 'b','x', mefont),
M(NONE, 0,0, 0)
};
struct mactab manmactab[] = {
M(PARAG, 'B','I', manfont),
M(PARAG, 'B','R', manfont),
M(PARAG, 'I','B', manfont),
M(PARAG, 'I','R', manfont),
M(PARAG, 'R','B', manfont),
M(PARAG, 'R','I', manfont),
M(PARAG, 'P','P', manpp),
M(PARAG, 'L','P', manpp),
M(PARAG, 'H','P', manpp),
M(NONE, 0,0, 0)
};
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.