#ifndef lint
static char sccsid[] = "@(#)tg.c	4.2 8/11/83";
#endif

 /* tg.c: process included text blocks */
# include "t..c"

extern void error(char *s);
extern void rstofill(void);
extern int ctspan(int i,int c);
extern int ctype(int il,int ic);
extern char *gets1(char *s);
extern int match(char *s1,char *s2);
extern void tcopy(char *s,char *t);

int gettext(char *sp,int ilin,int icol,char *fn,char *sz)
{
/* get a section of text */
char line[256];
int oname;
char *vs;
if (texname==0) error("Too many text block diversions");
if (textflg==0)
	{
	fprintf(tabout, ".nr %d \\n(.lu\n", SL); /* remember old line length */
	textflg=1;
	}
fprintf(tabout, ".eo\n");
fprintf(tabout, ".am %02d\n", icol+80);
fprintf(tabout, ".br\n");
fprintf(tabout, ".di %c+\n", texname);
rstofill();
if (fn && *fn) fprintf(tabout, ".nr %d \\n(.f\n.ft %s\n", S1, fn);
fprintf(tabout, ".ft \\n(.f\n"); /* protect font */
vs = vsize[stynum[ilin]][icol];
if ((sz && *sz) || (vs && *vs))
	{
	fprintf(tabout, ".nr %d \\n(.v\n", S2);
	if (vs==0 || *vs==0) vs= "\\n(.s+2";
	if (sz && *sz)
		fprintf(tabout, ".ps %s\n",sz);
	fprintf(tabout, ".vs %s\n",vs);
	fprintf(tabout, ".if \\n(%du>\\n(.vu .sp \\n(%du-\\n(.vu\n", S2,S2);
	}
if (cll[icol][0])
	fprintf(tabout, ".ll %sn\n", cll[icol]);
else
	fprintf(tabout, ".ll \\n(%du*%du/%du\n",SL,ctspan(ilin,icol),ncol+1);
fprintf(tabout,".if \\n(.l<\\n(%d .ll \\n(%du\n", icol+CRIGHT, icol+CRIGHT);
if (ctype(ilin,icol)=='a')
	fprintf(tabout, ".ll -2n\n");
fprintf(tabout, ".in 0\n");
while (gets1(line))
	{
	if (line[0]=='T' && line[1]=='}' && line[2]== tab) break;
	if (match("T}", line)) break;
	fprintf(tabout, "%s\n", line);
	}
if (fn && *fn) fprintf(tabout, ".ft \\n(%d\n", S1);
if (sz && *sz) fprintf(tabout, ".br\n.ps\n.vs\n");
fprintf(tabout, ".br\n");
fprintf(tabout, ".di\n");
fprintf(tabout, ".nr %c| \\n(dn\n", texname);
fprintf(tabout, ".nr %c- \\n(dl\n", texname);
fprintf(tabout, "..\n");
fprintf(tabout, ".ec \\\n");
/* copy remainder of line */
if (line[2])
	tcopy (sp, line+3);
else
	*sp=0;
oname=texname;
texname = texstr[++texct];
return(oname);
}

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