/* COMMTOO.C -- Scribble command interpeter, continued

	written March 1981 by Craig A. Finseth
	Copyright (c) 1981 by Mark of the Unicorn

Modifications Record:
	8/3/81		Indent mode and Table of contents by Jeffrey D. Stone.

*/

#include "scribble.gbl"

FLAG
CheckEnv(tkn)				/* deal with environments */
	char *tkn;
{
	char which;
	int ParaOut(), ParaStan(), ParaEnum(), ParaItem();

	if (Test(tkn,"indent")) { /* jds */
		env.eleft=env.cureleft+=HALFINCH;
		StartEnv();
		return(TRUE);
			}

	if (which=MulTest(tkn,"address","flushleft")) {
		env.isfill=FALSE;
		env.iswrap=FALSE;
		if (which==1) env.preveleft=env.eleft=
			env.cureleft= (pag.pright+pag.pleft)/2;
		env.justifytype='l';
		env.paraproc=NULL;
		StartEnv();
		return(TRUE);
		}
	if (which=MulTest(tkn,"center","flushright")) {
		env.isfill=FALSE;
		env.iswrap=FALSE;
		env.justifytype= (which==1)? 'c' : 'r';
		env.paraproc=NULL;
		StartEnv();
		return(TRUE);
		}
	if (Test(tkn,"description")) {
		env.eleft=env.cureleft+=(env.eright-env.cureleft)/4;
		env.linespacing=LINEHEIGHT;
		env.paraproc= &ParaOut;
		StartEnv();
		return(TRUE);
		}
	if (MulTest(tkn,"display","example")) {
		env.eleft=env.cureleft+=HALFINCH;
		env.eright-=HALFINCH/2;
		env.isfill=FALSE;
		env.iswrap=TRUE;
		env.justifytype='l';
		env.iswhiteintact=TRUE;
		env.paraproc=NULL;
		StartEnv();
		return(TRUE);
		}
	if (Test(tkn,"enumerate")) {
		env.preveleft=env.cureleft+2*CHARWIDTH;
		env.eleft=env.cureleft+=6*CHARWIDTH;
		env.enumcount=1;
		env.paraproc= &ParaEnum;
		StartEnv();
		return(TRUE);
		}
	if (MulTest(tkn,"format","verbatim")) {
		env.linespacing=LINEHEIGHT;
		env.isfill=FALSE;
		env.iswrap=FALSE;
		env.justifytype='l';
		env.iswhiteintact=TRUE;
		env.paraproc=NULL;
		StartEnv();
		return(TRUE);
		}
	if (Test(tkn,"itemize")) {
		env.preveleft=env.cureleft+2*CHARWIDTH;
		env.eleft=env.cureleft+=HALFINCH;
		env.paraproc= &ParaItem;
		env.itemlevel++;
		StartEnv();
		return(TRUE);
		}
	if (Test(tkn,"quotation")) {
		env.eleft=env.cureleft+=HALFINCH;
		env.eright-=HALFINCH;
		env.linespacing=LINEHEIGHT;
		StartEnv();
		return(TRUE);
		}
	if (Test(tkn,"text")) {
		env.linespacing=sty.spacing;
		StartEnv();
		return(TRUE);
		}
	if (Test(tkn,"verse")) {
		env.eleft=env.preveleft+=3*CHARWIDTH;
		env.cureleft=env.preveleft+2*CHARWIDTH;
		env.eright-=10*CHARWIDTH;
		env.linespacing=LINEHEIGHT;
		env.isfill=FALSE;
		env.justifytype='l';
		env.paraproc= &ParaOut;
		StartEnv();
		return(TRUE);
		}
	return(FALSE);
	}
	
FLAG
CheckSec(tkn)			/* deal with sectioning commands */
	char *tkn;
{
	TITLELIST *tptr;
	STRING *token;
	char which;

	if (which=MulComp(tkn,"chapter","appendix")) {
		tptr=GetMem(sizeof(*tptr));
		titletail->entnextptr=tptr;
		titletail=tptr;
		if (which==1) tptr->enttype='c';
		else {
			tptr->enttype='a';
			num.chapnum= ++num.appnum;
			}
		num.chaptitle=tptr->entptr=GetOneArg('r');
		tptr->entnextptr=NULL;
		num.secnum=0;
		num.subnum=0;
		num.paranum=0;
		++num.chapnum;

		BreakLine();
		PNewPage();
		PPutVert(6*LINEHEIGHT);

		tptr->entpage=num.pagenum;

		TPuts(" (");
		if (which==1) TPutn(num.chapnum);
		else TPut('A'-1+num.chapnum);
		TPut(')');

		EPush();
		env.isfill=FALSE;
		env.justifytype='c';
		PutInit();
		PutChr(BOLDON);
		if (which==1) PutNum("Chapter ",num.chapnum,NULL);
		else {
			PutStr("Appendix ");
			PutChr('A'-1+num.chapnum);
			}
		PutFini();
		BreakLine();
		PPutVert(LINEHEIGHT);
		PutInit();
		PutStr(SSToC(tptr->entptr));
		PutChr(BOLDOFF);
		PutFini();
		BreakLine();
		PPutVert(3*LINEHEIGHT);
		EPop();
		return(TRUE);
		}
	if (which=MulComp(tkn,"section","appendixsection")) {
		tptr=GetMem(sizeof(*tptr));
		titletail->entnextptr=tptr;
		titletail=tptr;
		tptr->enttype= (which==1)? 's' : 'n';
		num.sectitle=tptr->entptr=GetOneArg('r');
		tptr->entnextptr=NULL;
		num.subnum=0;
		num.paranum=0;
		++num.secnum;

		BreakLine();
		PPutVert(4*LINEHEIGHT);
		EPush();
		env.isfill=FALSE;
		env.justifytype='l';
		PutInit();
		if (num.chapnum != 0) {  /* jds */
			if (which==1) PutNum(NULL,num.chapnum,NULL);
			else PutChr('A'-1+num.chapnum);
			PutNum(".",num.secnum," ");
					}
		else	{  /* jds */
			PutNum(NULL,num.secnum,".");
			PutChr(' ');
			}
		PutStr(SSToc(tptr->entptr));
		PutFini();
		BreakLine();

		tptr->entpage=num.pagenum;

		TPuts(" (");
		if (num.chapnum != 0) {  /* jds */
			if (which==1) TPutn(num.chapnum);
			else TPut('A'-1+num.chapnum);
			TPut('.');
					}
		TPutn(num.secnum);
		TPut(')');

		PPutVert(2*LINEHEIGHT);
		EPop();
		return(TRUE);
		}
	if (which=MulComp(tkn,"subsection","paragraph")) {
		tptr=GetMem(sizeof(*tptr));
		titletail->entnextptr=tptr;
		titletail=tptr;
		tptr->enttype= (which==1)? 'b' : 'p';
		tptr->entptr=GetOneArg('r');
		if (which==1) {
			num.subtitle=tptr->entptr;
			num.paranum=0;
			++num.subnum;
			}
		else {
			num.paratitle=tptr->entptr;
			++num.paranum;
			}
		tptr->entnextptr=NULL;

		BreakLine();
		PPutVert(2*LINEHEIGHT);
		EPush();
		env.isfill=FALSE;
		env.justifytype='l';
		if (num.chapnum != 0) PutNum(NULL,num.chapnum,".");  /* jds */
		PutNum(NULL,num.secnum,".");
		if (which==1) PutNum(NULL,num.subnum," ");
		else {
			PutNum(NULL,num.subnum,".");
			PutNum(NULL,num.paranum," ");
			}
		PutStr(SSToC(tptr->entptr));
		BreakLine();

		tptr->entpage=num.pagenum;

		PPutVert(LINEHEIGHT);
		EPop();
		return(TRUE);
		}
	if ((which=MulComp(tkn,"unnumbered","majorheading")) ||
		 SCComp(tkn,"heading")) {
		BreakLine();
		if (which==1) PNewPage();
		PPutVert((which?6:4)*LINEHEIGHT);

		EPush();
		env.isfill=FALSE;
		env.justifytype='c';
		PutInit();
		PutChr(BOLDON);
		PutStr(SSToC(token=GetOneArg('r')));
		SFree(token);
		PutChr(BOLDOFF);
		PutFini();
		BreakLine();
		PPutVert(3*LINEHEIGHT);
		EPop();
		return(TRUE);
		}
	if (which=MulComp(tkn,"prefacesection","subheading")) {
		BreakLine();
		PPutVert(4*LINEHEIGHT);
		EPush();
		env.isfill=FALSE;
		env.justifytype='l';
		PutStr(SSToC(token=GetOneArg('r')));
		SFree(token);
		BreakLine();
		PPutVert(2*LINEHEIGHT);
		EPop();
		return(TRUE);
		}
	return(FALSE);
	}

/* end of modified COMMTOO.C */