xref: /csrg-svn/local/ditroff/ditroff.okeeffe/tbl/textblocks.c (revision 25093)

#ifndef lint
static char sccsid[] = "@(#)textblocks.c	1.2 (CWI) 85/10/02";
#endif lint

#include "defs.h"
#include "ext.h"

/*
 * Get a section of text
 *
 * Note that this doen't work after MAXLIN lines (see over200.c)
 *
 */

/*
 * This returns an int with the name of the diversion,
 * in maktab we test later in wide() whether the table entry is a
 * pointer to a string, or a character.
 * If it is a character, we now it is a diversion, and know it its width
 * to be in <diversionname>-
 *
 * Very ugly, (looks like we need unions in declaration of structure colstr ?)
 */

gettext(sp, ilin, icol, fn, sz)
char *sp, *fn, *sz;
{
	char line[BUFSIZ];
	char *vs;
	int oname;

	dprint(".\\\" -- gettext\n");
	if(texname == 0)
		error("Too many text block diversions");
	if(textflg == 0){
		printf(".nr %d \\n(.lu\n", SL);
 		/*
		 * remember old line length
		 */
		textflg = 1;
	}
	printf(".eo\n");
	printf(".am %2s\n", reg(icol, CRIGHT));
	printf(".br\n");
	printf(".di %c+\n", texname);
	rstofill();
	if(fn && *fn)
		printf(".nr %d \\n(.f\n.ft %s\n", S1, fn);
	/*
	 * protect font
	 */
	printf(".ft \\n(.f\n");
	vs = vsize[stynum[ilin]][icol];
	if((sz && *sz) || (vs && *vs)){
		printf(".nr %d \\n(.v\n", S2);
		if(vs == 0 || *vs == 0)
			vs = "\\n(.s+2";
		if(sz && *sz)
			printf(".ps %s\n", sz);
		printf(".vs %s\n", vs);
		printf(".if \\n(%du>\\n(.vu .sp \\n(%du-\\n(.vu\n",
									S2, S2);
	}
	if(cll[icol][0])
		printf(".ll %sn\n", cll[icol]);
	else
		printf(".ll \\n(%du*%du/%du\n", SL, ctspan(ilin, icol),
								ncol + 1);
	printf(".if \\n(.l<\\n(%2s .ll \\n(%2su\n", reg(icol, CRIGHT),
							reg(icol, CRIGHT));
	if(ctype(ilin, icol) == 'a')
		printf(".ll -2n\n");
	printf(".in 0\n");
	while(gets1(line)){
		if(line[0] == 'T' && line[1] == '}' && line[2] == tab)
			break;
		if(strcmp("T}", line) == 0)
			break;
		printf("%s\n", line);
	}
	if(fn && *fn)
		printf(".ft \\n(%d\n", S1);
	if(sz && *sz)
		printf(".br\n.ps\n.vs\n");
	printf(".br\n");
	printf(".di\n");
	/*
	 * Height of last complete diversion in register <diversionname>|
	 */
	printf(".nr %c| \\n(dn\n", texname);
	/*
	 * width of last complete diversion in register <diversionname>-
	 */
	printf(".nr %c- \\n(dl\n", texname);
	printf("..\n");
	printf(".ec \\\n");
	/*
	 * copy remainder of line
	 */
	if(line[2])
		strcpy(sp, line + 3);
	else
		*sp = 0;
	oname = texname;
	texname = texstr[++texct];
	return(oname);
}

untext(){
	rstofill();
	printf(".nf\n");
	printf(".ll \\n(%du\n", SL);
}