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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvi2tty/dvistuff.c
Initial commit
Diffstat (limited to 'dviware/dvi2tty/dvistuff.c')
-rw-r--r--dviware/dvi2tty/dvistuff.c2634
1 files changed, 2634 insertions, 0 deletions
diff --git a/dviware/dvi2tty/dvistuff.c b/dviware/dvi2tty/dvistuff.c
new file mode 100644
index 0000000000..ec05239ef1
--- /dev/null
+++ b/dviware/dvi2tty/dvistuff.c
@@ -0,0 +1,2634 @@
+/*
+ * dvi2tty
+ * Copyright (C) 2003 Marcel J.E. Mol <marcel@mesa.nl>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+/*
+ * Include files
+ */
+
+#include "dvi2tty.h"
+
+#if defined(VMS)
+# include types.h
+# include stat
+#else
+# if defined(THINK_C)
+# include <unix.h>
+# else
+# include <sys/types.h>
+# include <sys/stat.h>
+# endif
+#endif
+
+#if defined(MSDOS) || defined(THINK_C)
+# include <math.h>
+#endif
+
+#include "commands.h"
+#include "tex2ucs.h"
+
+
+/*
+ * Constant definitions
+ */
+
+#if defined(VMS)
+#define mseek vmsseek
+#define ROUND(a) (a>=0.0 ? (int) (a + 0.5) : (int) (a - 0.5) )
+#else
+#define mseek fseek
+#endif
+
+#define VERSIONID 2 /* dvi version number that pgm handles */
+#define VERTICALEPSILON 450000L /* crlf when increasing v more than this */
+
+#define rightmargin MAXTERMWIDTH+20
+ /* nr of columns allowed to the right of h=0*/
+#define leftmargin -50 /* give some room for negative h-coordinate */
+#define LINELEN rightmargin - leftmargin + 1
+
+#define MOVE TRUE /* if advancing h when outputing a rule */
+#define STAY FALSE /* if not advancing h when outputing a rule */
+
+#define absolute 0 /* for seeking in files */
+#define relative 1
+
+#define FORM 12 /* formfeed */
+#define SPACE 32 /* space */
+#define DEL 127 /* delete */
+
+#define LASTCHAR 127 /* max dvi character, above are commands */
+#define LASTCHAR8B 255
+
+#define IS_UNICODE 0x400000 /* flag for unicode */
+#define MAX_UNICODE 0x10FFFF /* max unicode */
+
+#define IMIN(a, b) (a<b ? a : b)
+#define IMAX(a, b) (a>b ? a : b)
+
+#define get1() num(1)
+#define get2() num(2)
+#define get3() num(3)
+#define get4() num(4)
+#define sget1() snum(1)
+#define sget2() snum(2)
+#define sget3() snum(3)
+#define sget4() snum(4)
+
+
+/*
+ * Structure and variable definitions
+ */
+
+const char *dvistuff = "@(#) dvistuff.c " VERSION " 20101027 M.J.E. Mol (c) 1989-2010";
+
+typedef struct {
+ long hh;
+ long vv;
+ long ww;
+ long xx;
+ long yy;
+ long zz;
+} stackitem;
+
+typedef struct lineptr { /* the lines of text to be output to outfile */
+ long vv; /* vertical position of the line */
+ int charactercount; /* pos of last char on line */
+ struct lineptr *prev; /* preceding line */
+ struct lineptr *next; /* succeeding line */
+ long text[LINELEN+1]; /* leftmargin...rightmargin */
+} linetype;
+
+typedef struct _font {
+ long num;
+ struct _font * next;
+ char * name;
+ unsigned char flags; /* to store font encoding types */
+ int fontnum; /* helper for japanese fonts */
+ bool is8bit; /* 8bit fonts */
+} font;
+
+#define TTFONT 0x01
+#define SYMFONT 0x02
+#define MIFONT 0x03
+#define T1FONT 0x04
+#define TS1FONT 0x05
+#define OT2FONT 0x10
+#define T2AFONT 0x11
+#define T2BFONT 0x12
+#define T2CFONT 0x13
+#define X2FONT 0x14
+#define JPFONT 0x80
+
+
+
+bool pageswitchon; /* true if user-set pages to print */
+bool sequenceon; /* false if pagesw-nrs refers to TeX-nrs */
+bool scascii; /* if true make Scand. nat. chars right */
+bool latin1; /* if true make latin1 chars right */
+bool utf8; /* if true print by utf8 encoding */
+bool noligaturefi; /* if true do not use ligature for ff,fi,fl,ffi,ffl */
+bool accent; /* if true output accents etc: \'{e} etc. */
+bool ttfont = FALSE; /* if true we assumed ttfonts, not cmr */
+bool symbolfont = FALSE; /* true if font is a symbol font */
+bool nttj = FALSE; /* switch to NTT japanese fonts ... */
+bool asciip = FALSE; /* switch to ASCII japanese fonts ... */
+bool uptex = FALSE; /* switch to upTeX CJK fonts ... */
+bool japan = FALSE; /* switch to NTT/ASCII/.. japanese fonts ... */
+bool jautodetect = FALSE; /* switch if do auto detection of Japanese TeX */
+bool jdetect = FALSE; /* switch if Japanese TeX detection is done */
+bool mifont = FALSE; /* ASCII japanese font ??? */
+bool is8bit = FALSE; /* true if 8bit encoding font */
+bool noffd; /* if true output ^L instead of formfeed */
+const char *delim; /* -bdelim for font switch printing */
+bool printfont; /* true if user wants font switches printed */
+bool compose; /* if true try to compose a combining character sequence */
+bool allchar; /* true if user sets all characters */
+ /* overrides sscasci, accent */
+
+int opcode; /* dvi-opcodes */
+
+long h, v; /* coordinates, horizontal and vertical */
+long w, x, y, z; /* horizontal and vertical amounts */
+
+long pagecounter; /* sequence page number counter */
+long backpointer; /* pointer for offset to previous page */
+long pagenr; /* TeX page number */
+int stackmax; /* stacksize required */
+
+long maxpagewidth; /* width of widest page in file */
+long charwidth; /* aprox width of character */
+long lineheight = VERTICALEPSILON;
+ /* aprox height of a line */
+
+linetype * currentline; /* pointer to current line on current page */
+linetype * firstline; /* pointer to first line on current page */
+linetype * lastline; /* pointer to last line on current page */
+int firstcolumn; /* 1st column with something to print */
+
+stackitem * stack; /* stack for dvi-pushes */
+int sptr; /* stack pointer */
+
+font * fonts = NULL; /* List of fontnames defined */
+font * fnt = NULL; /* Current font */
+
+int kanji1 = 0; /* number of rest of trailer bytes in kanji character */
+
+
+
+/*
+ * Function definitions
+ */
+
+#if defined(MSDOS)
+void postamble (void);
+void preamble (void);
+void walkpages (void);
+void initpage (void);
+void dopage (void);
+void skippage (void);
+void printpage (void);
+bool inlist (long);
+void rule (bool, long, long);
+void ruleaux (long, long, char);
+long horizontalmove (long);
+int skipnops (void);
+linetype * my_getline (void);
+linetype * findline (void);
+unsigned long num (int);
+long snum (int);
+void dochar (unsigned char);
+void symchar (unsigned char);
+void michar (unsigned char);
+void normchar (char, unsigned char);
+void t1char (unsigned char);
+void ts1char (unsigned char);
+void ot2char (unsigned char);
+void t2char (char, unsigned char);
+void outchar (long);
+void putcharacter (long);
+void setchar (long);
+void fontdef (int);
+void setfont (long);
+void jischar (unsigned long);
+int compute_jis (int, unsigned int, unsigned int *, unsigned int *);
+void dounichar (long);
+void dokanji (long);
+int getjsubfont (char *);
+
+#else
+void postamble (void);
+void preamble (void);
+void walkpages (void);
+void initpage (void);
+void dopage (void);
+void skippage (void);
+void printpage (void);
+bool inlist (long pagenr);
+void rule (bool moving, long rulewt, long ruleht);
+void ruleaux (long rulewt, long ruleht, char ch);
+long horizontalmove (long amount);
+int skipnops (void);
+linetype * my_getline (void);
+linetype * findline (void);
+unsigned long num (int size);
+long snum (int size);
+void dochar (unsigned char ch);
+void symchar (unsigned char ch);
+void michar (unsigned char ch);
+void normchar (char flag, unsigned char ch);
+void t1char (unsigned char ch);
+void ts1char (unsigned char ch);
+void ot2char (unsigned char ch);
+void t2char (char flag, unsigned char ch);
+void outchar (long ch);
+void putcharacter (long charnr);
+void setchar (long charnr);
+void fontdef (int x);
+void setfont (long fntnum);
+void jischar (unsigned long ch);
+void compute_jis (int f, unsigned int c, unsigned int * ku, unsigned int * ten);
+void dounichar (long ch);
+void dokanji (long ch);
+int getjsubfont (char * s);
+#if defined(VMS)
+long vmsseek ();
+long vms_ftell ();
+long vms_ungetc ();
+#endif
+#endif
+
+
+
+/*
+ * DVIMAIN -- The main function for processing the dvi file.
+ * Here we assume there are to file pointers: DVIfile and output.
+ * Also we have a list of pages pointed to by 'currentpage',
+ * which is only used (in 'inlist()') when a page list is given.
+ */
+
+void dvimain(void)
+{
+
+ postamble(); /* seek and process the postamble */
+ preamble(); /* process preamble */
+ /* note that walkpages *must* immediately follow preamble */
+ walkpages(); /* time to do the actual work! */
+
+ return;
+
+} /* dvimain */
+
+
+ /*
+ * POSTAMBLE -- Find and process postamble, use random access
+ */
+
+void postamble(void)
+{
+ register long size;
+ register int count;
+#if !defined (THINK_C) && defined(VMS)
+ struct stat st;
+#endif
+
+#if defined (THINK_C)
+ size = DVIfile->len;
+#elif defined(VMS)
+ fstat (fileno(DVIfile), &st);
+ size = (long) st.st_size; /* get size of file */
+#else
+ fseek (DVIfile, 0L, SEEK_END);
+ size = ftell (DVIfile); /* get size of file */
+#endif
+
+ count = -1;
+ do { /* back file up past signature bytes (223), to id-byte */
+ if (size-- == 0)
+ errorexit(nopst);
+ mseek(DVIfile, size, absolute);
+ opcode = (int) get1();
+ count++;
+ } while (opcode == TRAILER);
+ if (count < 4) { /* must have 4 trailer bytes */
+ foo = count;
+ errorexit(fwsgn);
+ }
+ if (opcode != VERSIONID)
+ errorexit(badid);
+ mseek(DVIfile, size-4, absolute); /* back up to back-pointer */
+ mseek(DVIfile, sget4(), absolute); /* and to start of postamble */
+ if (get1() != POST)
+ errorexit(nopst);
+ mseek(DVIfile, 20L, relative); /* lastpageoffset, numerator, denominator */
+ /* magnification, maxpageheight */
+ maxpagewidth = sget4();
+ charwidth = maxpagewidth / (ttywidth + espace);
+ stackmax = (int) get2();
+ if ((stack = (stackitem *) malloc(stackmax * sizeof(stackitem))) == NULL)
+ errorexit(stkrq);
+
+ /* get2() -- totalpages */
+ /* fontdefs do fontdefs in flight ... */
+
+ return;
+
+} /* postamble */
+
+
+
+/*
+ * PREAMBLE --process preamble, use random access
+ */
+
+void preamble(void)
+{
+
+ mseek(DVIfile, 0L, absolute); /* read the dvifile from the start */
+ if ((opcode = skipnops()) != PRE)
+ errorexit(nopre);
+ opcode = (int) get1(); /* check id in preamble, ignore rest of it */
+ if (opcode != VERSIONID)
+ errorexit(badid);
+ mseek(DVIfile, 12L, relative); /* numerator, denominator, magnification */
+ mseek(DVIfile, get1(), relative); /* skip job identification */
+
+ return;
+
+} /* preamble */
+
+
+
+/*
+ * WALKPAGES -- process the pages in the DVI-file
+ */
+
+void walkpages(void)
+{
+ register bool wantpage;
+
+ pagecounter = 0L;
+ while ((opcode = skipnops()) != POST) {
+
+ if (opcode != BOP) /* should be at start of page now */
+ errorexit(nobop);
+
+ pagecounter++;
+ pagenr = sget4(); /* get TeX page number */
+ mseek(DVIfile, 36L, relative); /* skip page header */
+ backpointer = sget4(); /* get previous page offset */
+ if (pageswitchon)
+ wantpage = inlist(sequenceon ? pagecounter : pagenr);
+ else
+ wantpage = TRUE;
+
+ if (wantpage) {
+ initpage();
+ dopage();
+ printpage();
+ }
+ else
+ skippage();
+ }
+
+ return;
+
+} /* walkpages */
+
+
+
+/*
+ * INITPAGE -- Setup a new, empty page.
+ */
+
+void initpage(void)
+{
+
+ h = 0L; v = 0L; /* initialize coordinates */
+ x = 0L; w = 0L; y = 0L; z = 0L; /* initialize amounts */
+ sptr = 0; /* initialize stack */
+ currentline = my_getline(); /* initialize list of lines */
+ currentline->vv = 0L;
+ firstline = currentline;
+ lastline = currentline;
+ firstcolumn = rightmargin;
+ if (pageswitchon) {
+ if ((sequenceon ? pagecounter : pagenr) != firstpage->pag) {
+ if (noffd)
+ fprintf(output, "^L\n");
+ else
+ putc(FORM, output);
+ }
+ }
+ else
+ if (backpointer != -1) { /* not FORM at first page */
+ if (noffd)
+ fprintf(output, "^L\n");
+ else
+ putc(FORM, output);
+ }
+
+ return;
+
+} /* initpage */
+
+
+
+/*
+ * DOPAGE -- Process the dvi file until an end-off-page.
+ * Build up a page image.
+ */
+
+void dopage(void)
+{
+
+ while ((opcode = (int) get1()) != EOP) { /* process page until eop */
+ if (opcode <= LASTCHAR)
+ dochar((unsigned char) opcode);
+ else if ((opcode >= FONT_00) && (opcode <= FONT_63))
+ setfont((long) opcode - FONT_00);
+ else if (opcode > POST_POST)
+ errorexit(illop);
+ else
+ switch (opcode) {
+ case SET1 : nttj ? jischar(get1()) : setchar(get1());break;
+ case SET2 : (asciip || uptex) ? dokanji(get2()) : setchar(get2()); break;
+ case SET3 : uptex ? dokanji(get3()) : setchar(get3()); break;
+ case SET4 : setchar(get4()); break;
+ case SET_RULE : { long height = sget4();
+ rule(MOVE, sget4(), height); break;
+ }
+ case PUT1 : putcharacter(get1()); break;
+ case PUT2 : putcharacter(get2()); break;
+ case PUT3 : putcharacter(get3()); break;
+ case PUT4 : putcharacter(get4()); break;
+ case PUT_RULE : { long height = sget4();
+ rule(STAY, sget4(), height); break;
+ }
+ case NOP : break; /* no-op */
+ case BOP : errorexit(bdbop); break;
+/* case EOP : break; strange place to have EOP */
+ case PUSH : if (sptr >= stackmax) /* push */
+ errorexit(stkof);
+ stack[sptr].hh = h;
+ stack[sptr].vv = v;
+ stack[sptr].ww = w;
+ stack[sptr].xx = x;
+ stack[sptr].yy = y;
+ stack[sptr].zz = z;
+ sptr++;
+ break;
+ case POP : if (sptr-- == 0) /* pop */
+ errorexit(stkuf);
+ h = stack[sptr].hh;
+ v = stack[sptr].vv;
+ w = stack[sptr].ww;
+ x = stack[sptr].xx;
+ y = stack[sptr].yy;
+ z = stack[sptr].zz;
+ break;
+ case RIGHT1 : (void) horizontalmove(sget1()); break;
+ case RIGHT2 : (void) horizontalmove(sget2()); break;
+ case RIGHT3 : (void) horizontalmove(sget3()); break;
+ case RIGHT4 : (void) horizontalmove(sget4()); break;
+ case W0 : h += w; break;
+ case W1 : w = horizontalmove(sget1()); break;
+ case W2 : w = horizontalmove(sget2()); break;
+ case W3 : w = horizontalmove(sget3()); break;
+ case W4 : w = horizontalmove(sget4()); break;
+ case X0 : h += x; break;
+ case X1 : x = horizontalmove(sget1()); break;
+ case X2 : x = horizontalmove(sget2()); break;
+ case X3 : x = horizontalmove(sget3()); break;
+ case X4 : x = horizontalmove(sget4()); break;
+ case DOWN1 : v += sget1(); break;
+ case DOWN2 : v += sget2(); break;
+ case DOWN3 : v += sget3(); break;
+ case DOWN4 : v += sget4(); break;
+ case Y0 : v += y; break;
+ case Y1 : y = sget1(); v += y; break;
+ case Y2 : y = sget2(); v += y; break;
+ case Y3 : y = sget3(); v += y; break;
+ case Y4 : y = sget4(); v += y; break;
+ case Z0 : v += z; break;
+ case Z1 : z = sget1(); v += z; break;
+ case Z2 : z = sget2(); v += z; break;
+ case Z3 : z = sget3(); v += z; break;
+ case Z4 : z = sget4(); v += z; break;
+ case FNT1 :
+ case FNT2 :
+ case FNT3 :
+ case FNT4 : setfont(num(opcode - FNT1 + 1));
+ break;
+ case XXX1 : mseek(DVIfile, get1(), relative); break;
+ case XXX2 : mseek(DVIfile, get2(), relative); break;
+ case XXX3 : mseek(DVIfile, get3(), relative); break;
+ case XXX4 : mseek(DVIfile, get4(), relative); break;
+ case FNT_DEF1 :
+ case FNT_DEF2 :
+ case FNT_DEF3 :
+ case FNT_DEF4 : fontdef(opcode - FNT_DEF1 + 1);
+ break;
+ case PRE : errorexit(bdpre); break;
+ case POST : errorexit(bdpst); break;
+ case POST_POST: errorexit(bdpp); break;
+ }
+ }
+
+ return;
+
+} /* dopage */
+
+
+
+/*
+ * SKIPPAGE -- Scan the dvi file until an end-off-page.
+ * Skip this page.
+ */
+
+void skippage(void)
+{
+ register int opcode;
+
+ while ((opcode = (int) get1()) != EOP) {
+ if (opcode > POST_POST)
+ errorexit(illop);
+ else
+ switch (opcode) {
+ case SET1 :
+ case PUT1 :
+ case RIGHT1 :
+ case W1 :
+ case X1 :
+ case DOWN1 :
+ case Y1 :
+ case Z1 : /* assume FNT change can also be skipped */
+ case FNT1 : mseek(DVIfile, 1L, relative); break;
+ case SET2 :
+ case PUT2 :
+ case RIGHT2 :
+ case W2 :
+ case X2 :
+ case DOWN2 :
+ case Y2 :
+ case Z2 :
+ case FNT2 : mseek(DVIfile, 2L, relative); break;
+ case SET3 :
+ case PUT3 :
+ case RIGHT3 :
+ case W3 :
+ case X3 :
+ case DOWN3 :
+ case Y3 :
+ case Z3 :
+ case FNT3 : mseek(DVIfile, 3L, relative); break;
+ case SET4 :
+ case PUT4 :
+ case RIGHT4 :
+ case W4 :
+ case X4 :
+ case DOWN4 :
+ case Y4 :
+ case Z4 :
+ case FNT4 : mseek(DVIfile, 4L, relative); break;
+ case SET_RULE :
+ case PUT_RULE : mseek(DVIfile, 8L, relative); break;
+ case BOP : errorexit(bdbop); break;
+ case XXX1 : mseek(DVIfile, get1(), relative); break;
+ case XXX2 : mseek(DVIfile, get2(), relative); break;
+ case XXX3 : mseek(DVIfile, get3(), relative); break;
+ case XXX4 : mseek(DVIfile, get4(), relative); break;
+ case FNT_DEF1 :
+ case FNT_DEF2 :
+ case FNT_DEF3 :
+ case FNT_DEF4 : fontdef(opcode - FNT_DEF1 + 1); break;
+ case PRE : errorexit(bdpre); break;
+ case POST : errorexit(bdpst); break;
+ case POST_POST: errorexit(bdpp); break;
+ }
+ }
+
+ return;
+
+} /* skippage */
+
+
+
+/*
+ * PRINTPAGE -- 'end of page', writes lines of page to output file
+ */
+
+void printpage(void)
+{
+ register int i, j, k;
+ register long ch, mbch;
+ unsigned char buff[4];
+
+ if (sptr != 0)
+ fprintf(stderr, "dvi2tty: warning - stack not empty at eop.\n");
+ for (currentline = firstline; currentline != nil;
+ currentline = currentline->next) {
+ if (currentline != firstline) {
+ foo = ((currentline->vv - currentline->prev->vv)/lineheight)-1;
+ if (foo > 3)
+ foo = 3; /* linespacings not too large */
+ for (i = 1; i <= (int) foo; i++)
+ putc('\n', output);
+ }
+ if (currentline->charactercount >= leftmargin) {
+ foo = ttywidth - 2;
+ for (i = firstcolumn, j = 1; i <= currentline->charactercount;
+ i++, j++) {
+ ch = currentline->text[i - leftmargin];
+
+ if (japan && !(ch & IS_UNICODE)) {
+ if (ch > 127) {
+ for (k = 0; k < 4; k++) {
+ if (i - leftmargin + k < LINELEN+1)
+ buff[k] = currentline->text[i - leftmargin + k];
+ else buff[k] = '\0';
+ }
+ kanji1 = multistrlen(buff, 4, 0) - 1;
+ }
+ else kanji1 = 0;
+ if (kanji1 && (j + kanji1 > (int) foo) &&
+ (currentline->charactercount > i+1)) {
+ putc2('*', output);
+ putc2('\n', output); /* if line to large */
+ putc2(' ', output);
+ putc2('*', output); /* mark output */
+ j = 2;
+ }
+ }
+
+ if (ch >= SPACE || allchar) {
+ if (utf8 && (ch & IS_UNICODE)) {
+ mbch = UCStoUTF8(ch & MAX_UNICODE);
+ if (BYTE1(mbch) != 0) putc((unsigned char)BYTE1(mbch), output);
+ if (BYTE2(mbch) != 0) putc((unsigned char)BYTE2(mbch), output);
+ if (BYTE3(mbch) != 0) putc((unsigned char)BYTE3(mbch), output);
+ /* always */ putc((unsigned char)BYTE4(mbch), output);
+ }
+ else if (japan) {
+ for (k = 0; k < kanji1; k++) {
+ putc2(ch, output);
+ i++; j++;
+ ch = currentline->text[i - leftmargin];
+ }
+ putc2(ch, output);
+ }
+ else
+ putc(ch, output);
+ }
+ if ((j > (int) foo) && (currentline->charactercount > i+1)) {
+ if (japan) {
+ putc2('*', output);
+ putc2('\n', output); /* if line to large */
+ putc2(' ', output);
+ putc2('*', output); /* mark output */
+ }
+ else {
+ fprintf(output, "*\n"); /* if line to large */
+ fprintf(output, " *"); /* mark output */
+ }
+ j = 2;
+ }
+ }
+ }
+ if (japan)
+ putc2('\n', output);
+ else
+ putc('\n', output);
+ }
+
+ currentline = firstline;
+ while (currentline->next != nil) {
+ currentline = currentline->next;
+ free(currentline->prev);
+ }
+ free(currentline); /* free last line */
+ currentline = nil;
+
+ return;
+
+} /* printpage */
+
+
+
+/*
+ * INLIST -- return true if pagenr is in the list of pages to be printed.
+ */
+
+bool inlist(long pagenr)
+{
+
+ while ((currentpage->pag < 0) && (currentpage->pag != pagenr) &&
+ !currentpage->all && (currentpage->nxt != nil))
+ currentpage = currentpage->nxt;
+ if ((currentpage->all && (pagenr < currentpage->pag)) ||
+ (currentpage->pag == pagenr))
+ return TRUE;
+ else if (pagenr > 0) {
+ while ((currentpage->pag < pagenr) && (currentpage->nxt != nil))
+ currentpage = currentpage->nxt;
+ if (currentpage->pag == pagenr)
+ return TRUE;
+ }
+
+ return FALSE;
+
+} /* inlist */
+
+
+
+/*
+ * RULE -- Output a rule (vertical or horizontal).
+ * Increment h if moving is true.
+ */
+
+void rule(bool moving, long rulewt, long ruleht)
+{
+
+ register char ch; /* character to set rule with */
+ register long saveh = 0, savev;
+ /* rule -- starts up the recursive routine */
+ if (!moving)
+ saveh = h;
+ if ((ruleht <= 0) || (rulewt <= 0))
+ h += rulewt;
+ else {
+ savev = v;
+ if ((ruleht / rulewt) > 0) /* value < 1 truncates to 0 */
+ ch = '|';
+ else if (ruleht > (lineheight / 2))
+ ch = '=';
+ else
+ ch = '_';
+ ruleaux(rulewt, ruleht, ch);
+ v = savev;
+ }
+ if (!moving)
+ h = saveh;
+
+ return;
+
+} /* rule */
+
+
+
+/*
+ * RULEAUX -- do the actual output for the rule recursively.
+ */
+
+void ruleaux(long rulewt, long ruleht, char ch)
+{
+ register long wt, lmh, rmh;
+
+ wt = rulewt;
+ lmh = h; /* save left margin */
+ if (h < 0) { /* let rules that start at negative h */
+ wt -= h; /* start at coordinate 0, but let it */
+ h = 0; /* have the right length */
+ }
+ while (wt > 0) { /* output the part of the rule that */
+ rmh = h; /* goes on this line */
+ outchar(ch);
+ wt -= (h-rmh); /* decrease the width left on line */
+ }
+ ruleht -= lineheight; /* decrease the height */
+ if (ruleht > lineheight) { /* still more vertical? */
+ rmh = h; /* save current h (right margin) */
+ h = lmh; /* restore left margin */
+ v -= (lineheight + lineheight / 10);
+ ruleaux(rulewt, ruleht, ch);
+ h = rmh; /* restore right margin */
+ }
+
+ return;
+
+} /* ruleaux */
+
+
+
+/*
+ * HORIZONTALMOVE -- Move the h pointer by amount.
+ */
+
+long horizontalmove(long amount)
+{
+
+#if defined(MSDOS) || defined(THINK_C)
+ if (labs(amount) > charwidth / 4L) { /* } to make vi happy */
+#else
+ if (abs(amount) > charwidth / 4L) {
+#endif
+ foo = 3*charwidth / 4;
+ if (amount > 0)
+ amount = ((amount+foo) / charwidth) * charwidth;
+ else
+#if defined(VMS)
+ amount = (ROUND( (float) (amount-foo) / charwidth) + 1)* charwidth;
+#else
+ amount = ((amount-foo) / charwidth) * charwidth;
+#endif
+ h += amount;
+ return amount;
+ }
+ else
+ return 0;
+
+} /* horizontalmove */
+
+
+
+/*
+ * SKIPNOPS -- Return first non NOP opcode.
+ */
+
+int skipnops(void)
+{
+ register int opcode;
+
+ while ((opcode = (int) num(1)) == NOP);
+
+ return opcode;
+
+} /* skipnops */
+
+
+
+/*
+ * GETLINE -- Returns an initialized line-object
+ */
+
+linetype *my_getline(void)
+{
+ register int i;
+ register linetype *temp;
+
+ if ((temp = (linetype *) malloc(sizeof(linetype))) == NULL)
+ errorexit(lnerq);
+ temp->charactercount = leftmargin - 1;
+ temp->prev = nil;
+ temp->next = nil;
+ for (i = 0; i < LINELEN; i++)
+ temp->text[i] = ' ';
+ temp->text[i] = '\0';
+
+ return temp;
+
+} /* my_getline */
+
+
+
+/*
+ * FINDLINE -- Find best fit line were text should go
+ * and generate new line if needed.
+ */
+
+linetype *findline(void)
+{
+ register linetype *temp;
+ register long topd, botd;
+
+ if (v <= firstline->vv) { /* above first line */
+ if (firstline->vv - v > lineheight) {
+ temp = my_getline();
+ temp->next = firstline;
+ firstline->prev = temp;
+ temp->vv = v;
+ firstline = temp;
+ }
+ return firstline;
+ }
+
+ if (v >= lastline->vv) { /* below last line */
+ if (v - lastline->vv > lineheight) {
+ temp = my_getline();
+ temp->prev = lastline;
+ lastline->next = temp;
+ temp->vv = v;
+ lastline = temp;
+ }
+ return lastline;
+ }
+
+ temp = lastline; /* in between two lines */
+ while ((temp->vv > v) && (temp != firstline))
+ temp = temp->prev;
+
+ /* temp->vv < v < temp->next->vv --- temp is above, temp->next is below */
+ topd = v - temp->vv;
+ botd = temp->next->vv - v;
+ if ((topd < lineheight) || (botd < lineheight)) {
+ if (topd < botd) /* take best fit */
+ return temp;
+ else
+ return temp->next;
+ }
+
+ /* no line fits suitable, generate a new one */
+ currentline = my_getline();
+ currentline->next = temp->next;
+ currentline->prev = temp;
+ temp->next->prev = currentline;
+ temp->next = currentline;
+ currentline->vv = v;
+
+ return currentline;
+
+} /* findline */
+
+
+
+/*
+ * NUM --
+ */
+
+unsigned long num(int size)
+{
+ register int i;
+ register unsigned long x = 0;
+
+ for (i = size; i > 0; i--)
+ x = (x << 8) + (unsigned) getc(DVIfile);
+
+ return x;
+
+} /* num */
+
+
+/*
+ * SNUM --
+ */
+
+long snum(int size)
+{
+ register int i;
+ register long x;
+
+ x = getc(DVIfile);
+ if (x & 0x80)
+ x -= 0x100;
+ for (i = size - 1; i > 0; i--)
+ x = (x << 8) + (unsigned) getc(DVIfile);
+
+ return x;
+
+} /* snum */
+
+
+
+/*
+ * DOUNICHAR -- Process a Unicode character
+ */
+
+void dounichar(long ch)
+{
+ unsigned char c[4] = {}, *cc;
+
+ if (noligaturefi && 0xFB00<=ch && ch<=0xFB04) {
+ switch (ch) {
+ case 0xFB00: strcpy(c,"ff"); break;
+ case 0xFB01: strcpy(c,"fi"); break;
+ case 0xFB02: strcpy(c,"fl"); break;
+ case 0xFB03: strcpy(c,"ffi"); break;
+ case 0xFB04: strcpy(c,"ffl"); break;
+ }
+ cc=c;
+ while (*cc) { outchar(*cc); cc++; }
+ return;
+ }
+ if (ch>0x7F)
+ outchar((long)(ch | IS_UNICODE));
+ else {
+ outchar((long)ch);
+ }
+
+ return;
+
+} /* dounichar */
+
+
+/*
+ * DOKANJI -- Process a kanji character opcode.
+ */
+
+void dokanji(long ch)
+{
+ long i;
+ i = toBUFF(fromDVI(ch));
+
+ kanji1 = 3;
+ if (BYTE1(i) != 0) outchar((long)BYTE1(i));
+ kanji1 = 2;
+ if (BYTE2(i) != 0) outchar((long)BYTE2(i));
+ kanji1 = 1;
+ if (BYTE3(i) != 0) outchar((long)BYTE3(i));
+ kanji1 = 0;
+ /* always */ outchar((long)BYTE4(i));
+
+ return;
+
+} /* dokanji */
+
+
+
+/*
+ * DOCHAR -- Process a character opcode.
+ */
+
+void dochar(unsigned char ch)
+{
+ char flag;
+ flag = fnt->flags;
+
+ if (nttj && fnt->fontnum)
+ jischar((long) ch);
+ else if (symbolfont)
+ symchar(ch);
+ else if (mifont)
+ michar(ch);
+ else if (flag == T1FONT)
+ t1char(ch);
+ else if (flag == TS1FONT)
+ ts1char(ch);
+ else if (flag == OT2FONT)
+ ot2char(ch);
+ else if (flag == T2AFONT || flag == T2BFONT ||
+ flag == T2CFONT || flag == X2FONT)
+ t2char(flag, ch);
+ else
+ normchar(flag, ch);
+
+ return;
+
+} /* dochar */
+
+
+
+/*
+ * SYMCHAR -- Process a character opcode for a symbol font.
+ */
+
+void symchar(unsigned char ch)
+{
+ unsigned char c[4] = {}, *cc;
+ long ucs;
+
+ ucs = oms_to_ucs[ch];
+ if (utf8) {
+ dounichar(ucs);
+ return;
+ }
+ else if ((latin1 && ucs<0x100) || ucs<0x80) {
+ outchar(ucs);
+ return;
+ }
+
+ switch (ch) { /* can do a lot more on MSDOS/latin1/unicode machines ... */
+ case 0: c[0] = '-'; break;
+ case 1: c[0] = '.'; break;
+ case 2: c[0] = 'x'; break;
+ case 3: c[0] = '*'; break;
+ case 4: c[0] = '/'; break;
+ case 6: c[0] = '+'; c[1] = '-'; break;
+ case 7: c[0] = '-'; c[1] = '+'; break;
+ case 13: c[0] = 'O'; break;
+ case 14: c[0] = 'O'; break;
+ case 15: c[0] = 'o'; break;
+ case 24: c[0] = '~'; break;
+ case 28: c[0] = '<'; c[1] = '<'; break;
+ case 29: c[0] = '>'; c[1] = '>'; break;
+ case 32: c[0] = '<'; c[1] = '-'; break;
+ case 33: c[0] = '-'; c[1] = '>'; break;
+ case 34: c[0] = '^'; break;
+ case 35: c[0] = 'v'; break;
+ case 36: c[0] = '<'; c[1] = '-'; c[2] = '>'; break;
+ case 40: c[0] = '<'; c[1] = '='; break;
+ case 41: c[0] = '='; c[1] = '>'; break;
+ case 42: c[0] = '^'; break;
+ case 43: c[0] = 'v'; break;
+ case 44: c[0] = '<'; c[1] = '='; c[2] = '>'; break;
+ case 60: c[0] = 'R'; c[1] = 'e'; break;
+ case 61: c[0] = 'I'; c[1] = 'm'; break;
+ case 102: c[0] = '{'; break;
+ case 103: c[0] = '}'; break;
+ case 104: c[0] = '<'; break;
+ case 105: c[0] = '>'; break;
+ case 106: c[0] = '|'; break;
+ case 107: c[0] = '|'; c[1] = '|'; break;
+ case 110: c[0] = '\\'; break;
+ case 120: c[0] = 'S'; break;
+ case 121: c[0] = '*'; break;
+ case 122: c[0] = '*'; c[1] = '*'; break;
+ case 123: c[0] = 'P'; break;
+
+ default: c[0] = '#';
+ }
+
+ cc=c;
+ while (*cc) { outchar(*cc); cc++; }
+
+ return;
+
+} /* symchar */
+
+
+
+/*
+ * MICHAR -- Process a character opcode for OML font.
+ */
+
+void michar(unsigned char ch)
+{
+ unsigned char c[4] = {}, *cc;
+ long ucs;
+
+ if (allchar) {
+ outchar(ch);
+ return;
+ }
+ ucs = oml_to_ucs[ch];
+ if (utf8) {
+ dounichar(ucs);
+ return;
+ }
+ else if ((latin1 && ucs<0x100) || ucs<0x80) {
+ outchar(ucs);
+ return;
+ }
+
+ switch (ch) {
+ case 0x3a: c[0] = '.'; break; /* . */
+ case 0x3b: c[0] = ','; break; /* , */
+ case 0x3d: c[0] = '/'; break; /* / */
+ case 0x3e: c[0] = '*'; break; /* \star */
+ case 0x40: c[0] = 'd'; break; /* \partial */
+ case 0x60: c[0] = 'l'; break; /* \ell */
+ case 0x7b: c[0] = 'i'; break; /* dotless i */
+ case 0x7c: c[0] = 'j'; break; /* dotless j */
+ case 0x7d: c[0] = 'P'; break; /* \wp */
+
+ default : c[0] = '#';
+ }
+
+ cc=c;
+ while (*cc) { outchar(*cc); cc++; }
+
+ return;
+
+} /* michar */
+
+
+/*
+ * NORMCHAR -- Process a character opcode for a normal font.
+ */
+
+void normchar(char flag, unsigned char ch)
+{
+ unsigned char c[4] = {}, *cc;
+ const unsigned short *tex_to_ucs;
+ long ucs;
+
+ if (allchar) {
+ outchar(ch);
+ return;
+ }
+ if (!accent) {
+ switch (ch) {
+ case 18 : /* grave from \` */
+ case 19 : /* acute from \' */
+ case 20 : /* caron from \v */
+ case 21 : /* breve from \u */
+ case 22 : /* macron from \= */
+ case 23 : /* ring above from \r */
+ case 24 : /* cedilla from \c */
+ case 32 : /* stroke i.e. \L,\l */
+ case 94 : /* circumflex from \^ */
+ case 126 : /* tilde from \~ */
+ case 127 : /* diaeresis from \" */
+ return;
+ case 125 : /* double acute from \H */
+ case 95 : /* dot from \. */
+ if (!ttfont) return;
+ }
+ }
+ switch (flag) {
+ case TTFONT : tex_to_ucs=tt_to_ucs; break;
+ default : tex_to_ucs=ot1_to_ucs;
+ }
+ ucs = tex_to_ucs[ch];
+ if (utf8) {
+ dounichar(ucs);
+ return;
+ }
+ else if ((latin1 && ucs<0x100) || ucs<0x80) {
+ outchar(ucs);
+ return;
+ }
+
+ switch (ch) {
+ case 11 : if (ttfont)
+ c[0] = '^'; /* up symbol */
+ else {
+ c[0] = 'f'; c[1] = 'f'; /* ligature */
+ }
+ break;
+ case 12 : if (ttfont)
+ c[0] = 'v'; /* low symbol */
+ else {
+ c[0] = 'f'; c[1] = 'i'; /* ligature */
+ }
+ break;
+ case 13 : if (ttfont)
+ c[0] = '`';
+ else {
+ c[0] = 'f'; c[1] = 'l'; /* ligature */
+ }
+ break;
+ case 14 : if (ttfont)
+ c[0] = 'i'; /* spanish ! */
+ else {
+ c[0] = 'f'; c[1] = 'f';
+ c[2] = 'i'; /* ligature */
+ }
+ break;
+ case 15 : if (ttfont)
+ c[0] = '.'; /* spanish ? */
+ else {
+ c[0] = 'f'; c[1] = 'f';
+ c[2] = 'l'; /* ligature */
+ }
+ break;
+ case 16 : c[0] = 'i'; break;
+ case 17 : c[0] = 'j'; break;
+ case 25 : if (latin1)
+ c[0] = 0xdf;
+ else {
+ c[0] = 's'; c[1] = 's';
+ }
+ break; /* German double s */
+ case 26 : if (latin1)
+ c[0] = 0xe6;
+ else {
+ c[0] = 'a'; c[1] = 'e';
+ }
+ break; /* Dane/Norw ae */
+ case 27 : c[0] = 'o'; c[1] = 'e';
+ break; /* Dane/Norw oe */
+ case 28 : if (scascii)
+ c[0] = '|';
+ else if (latin1)
+ c[0] = 0xf8;
+ else
+ c[0] = 'o';
+ break; /* Dane/Norw /o */
+ case 29 : if (latin1)
+ c[0] = 0xc6;
+ else {
+ c[0] = 'A'; c[1] = 'E';
+ }
+ break; /* Dane/Norw AE */
+ case 30 : c[0] = 'O'; c[1] = 'E';
+ break; /* Dane/Norw OE */
+ case 31 : if (scascii)
+ c[0] = '\\';
+ else if (latin1)
+ c[0] = 0xd8;
+ else
+ c[0] = 'O';
+ break; /* Dane/Norw /O */
+ case 60 : if (ttfont)
+ c[0] = ch; /* '>' */
+ else if (latin1)
+ c[0] = 0xa1;
+ else
+ c[0] = '!';
+ break; /* inverted ! */
+ case 62 : if (ttfont)
+ c[0] = ch; /* '<' */
+ else if (latin1)
+ c[0] = 0xbf;
+ else
+ c[0] = '?';
+ break; /* inverted ? */
+ case 32 : c[0] = ttfont ? ch : '_'; break; /* underlined blank */
+ case 92 : c[0] = ttfont ? ch : '"'; break; /* \ from `` */
+ case 123 : if (ttfont)
+ c[0] = ch; /* { */
+ else {
+ c[0] = '-'; c[1] = '-'; /* -- */
+ }
+ break;
+ case 124 : if (ttfont)
+ c[0] = ch; /* | */
+ else {
+ c[0] = '-'; c[1] = '-'; /* --- */
+ c[2] = '-';
+ }
+ break;
+ case 125 : if (ttfont)
+ c[0] = ch; /* } */
+ else
+ c[0] = '"'; /* double acute from \H */
+ break;
+ case 34 : /* " */
+ case 39 : /* ' */
+ case 96 : c[0] = ch; break; /* ` */
+
+ /* diacritical marks */
+ case 18 : c[0] = '`' ; break; /* grave from \` */
+ case 19 : c[0] = latin1 ? 0xb4 : '\''; break;
+ /* acute from \' */
+ case 20 : c[0] = '~' ; break; /* caron from \v */
+ case 21 : c[0] = '~' ; break; /* breve from \u */
+ case 22 : c[0] = '~' ; break; /* macron from \= */
+ case 23 : c[0] = latin1 ? 0xb0 : '~'; break;
+ /* ring above from \r */
+ case 24 : c[0] = latin1 ? 0xb8 : ','; break;
+ /* cedilla from \c */
+ case 94 : c[0] = '^' ; break; /* circumflex from \^ */
+ case 95 : c[0] = !ttfont ? '.' : ch; break;
+ /* dot from \. */
+ case 126 : c[0] = '~' ; break; /* tilde from \~ */
+ case 127 : c[0] = '"' ; break; /* diaeresis from \" */
+
+ default : c[0] = '#';
+ }
+
+ cc=c;
+ while (*cc) { outchar(*cc); cc++; }
+
+ return;
+
+} /* normchar */
+
+
+/*
+ * T1CHAR -- Process a character opcode for a T1 encoding font.
+ */
+
+void t1char(unsigned char ch)
+{
+ unsigned char c[4] = {}, *cc;
+ long ucs;
+
+ if (allchar) {
+ outchar(ch);
+ return;
+ }
+ if (!accent) {
+ switch (ch) {
+ case 0x00: /* grave from \` */
+ case 0x01: /* acute from \' */
+ case 0x02: /* circumflex from \^ */
+ case 0x03: /* tilde from \~ */
+ case 0x04: /* diaeresis from \" */
+ case 0x05: /* double acute from \H */
+ case 0x06: /* ring above from \r */
+ case 0x07: /* caron from \v */
+ case 0x08: /* breve from \u */
+ case 0x09: /* macron from \= */
+ case 0x0a: /* dot from \. */
+ case 0x0b: /* cedilla from \c */
+ case 0x0c: /* ogonek from \k */
+ return;
+ }
+ }
+ if (ch==0xdf) {
+ outchar('S'); outchar('S'); /* SS */
+ return;
+ }
+ ucs = t1_to_ucs[ch];
+ if (utf8) {
+ dounichar(ucs);
+ return;
+ }
+ else if ((latin1 && ucs<0x100) || ucs<0x80) {
+ outchar(ucs);
+ return;
+ }
+
+ switch (ch) {
+ case 0x17: return; /* \textcompwordmark */
+ case 0x0d: /* \quotesinglbase */
+ case 0x27: /* \textquoteright */
+ case 0x60: c[0] = '\''; break; /* \textquoteleft */
+ case 0x10: /* \textquotedblleft */
+ case 0x11: /* \textquotedblright */
+ case 0x12: c[0] = '"'; break; /* \quotedblbase */
+ case 0x0e: c[0] = '<'; break; /* \guilsinglleft */
+ case 0x0f: c[0] = '>'; break; /* \guilsinglright */
+ case 0x13: c[0] = '<'; c[1] = '<'; /* \guillemotleft */
+ break;
+ case 0x14: c[0] = '>'; c[1] = '>'; /* \guillemotright */
+ break;
+ case 0x15: c[0] = '-'; c[1] = '-'; /* \textendash */
+ break;
+ case 0x16: c[0] = '-'; c[1] = '-'; /* \textemdash */
+ c[2] = '-'; break;
+ case 0x20: c[0] = '_'; break; /* \textvisiblespace */
+ case 0x7f: c[0] = '-'; break; /* - */
+ case 0x19: c[0] = 'i'; break; /* dotless i */
+ case 0x1a: c[0] = 'j'; break; /* dotless j */
+ case 0x1b: c[0] = 'f'; c[1] = 'f'; /* ligature */
+ break;
+ case 0x1c: c[0] = 'f'; c[1] = 'i'; /* ligature */
+ break;
+ case 0x1d: c[0] = 'f'; c[1] = 'l'; /* ligature */
+ break;
+ case 0x1e: c[0] = 'f'; c[1] = 'f';
+ c[2] = 'i'; /* ligature */
+ break;
+ case 0x1f: c[0] = 'f'; c[1] = 'f';
+ c[2] = 'l'; /* ligature */
+ break;
+ case 0xff: c[0] = 's'; c[1] = 's';
+ break; /* German double s */
+ case 0xe6: c[0] = 'a'; c[1] = 'e';
+ break; /* Dane/Norw ae */
+ case 0xf7: c[0] = 'o'; c[1] = 'e';
+ break; /* Dane/Norw oe */
+ case 0xf8: c[0] = '/'; c[1] = 'o';
+ break; /* Dane/Norw /o */
+ case 0xc6: c[0] = 'A'; c[1] = 'E';
+ break; /* Dane/Norw AE */
+ case 0xd7: c[0] = 'O'; c[1] = 'E';
+ break; /* Dane/Norw OE */
+ case 0xd8: c[0] = '/'; c[1] = 'O';
+ break; /* Dane/Norw /O */
+ case 0x9c: c[0] = 'I'; c[1] = 'J';
+ break; /* IJ */
+ case 0xbc: c[0] = 'i'; c[1] = 'j';
+ break; /* ij */
+ case 0x8d: c[0] = 'N'; c[1] = 'G';
+ break; /* ENG */
+ case 0xad: c[0] = 'n'; c[1] = 'g';
+ break; /* eng */
+ case 0xde: c[0] = 'T'; c[1] = 'H';
+ break; /* THORN */
+ case 0xfe: c[0] = 't'; c[1] = 'h';
+ break; /* thorn */
+ case 0x80: c[0] = '~'; c[1] ='A'; break; /* uA */
+ case 0x81: c[0] = ','; c[1] ='A'; break; /* ,A */
+ case 0x82: c[0] = '\''; c[1] ='C'; break; /* 'C */
+ case 0x83: c[0] = '~'; c[1] ='C'; break; /* vC */
+ case 0x84: c[0] = '~'; c[1] ='D'; break; /* vD */
+ case 0x85: c[0] = '~'; c[1] ='E'; break; /* vE */
+ case 0x86: c[0] = ','; c[1] ='E'; break; /* ,E */
+ case 0x87: c[0] = '~'; c[1] ='G'; break; /* uG */
+ case 0x88: c[0] = '\''; c[1] ='L'; break; /* 'L */
+ case 0x89: c[0] = '\''; c[1] ='L'; break; /* 'L */
+ case 0x8a: c[0] = '-'; c[1] ='L'; break; /* -L */
+ case 0x8b: c[0] = '\''; c[1] ='N'; break; /* 'N */
+ case 0x8c: c[0] = '~'; c[1] ='N'; break; /* vN */
+ case 0x8e: c[0] = '"'; c[1] ='O'; break; /* "O */
+ case 0x8f: c[0] = '\''; c[1] ='R'; break; /* 'R */
+ case 0x90: c[0] = '~'; c[1] ='R'; break; /* vR */
+ case 0x91: c[0] = '\''; c[1] ='S'; break; /* 'S */
+ case 0x92: c[0] = '~'; c[1] ='S'; break; /* vS */
+ case 0x93: c[0] = ','; c[1] ='S'; break; /* ,S */
+ case 0x94: c[0] = '~'; c[1] ='T'; break; /* vT */
+ case 0x95: c[0] = ','; c[1] ='T'; break; /* ,T */
+ case 0x96: c[0] = '"'; c[1] ='U'; break; /* "U */
+ case 0x97: c[0] = '\''; c[1] ='U'; break; /* oU */
+ case 0x98: c[0] = '"'; c[1] ='Y'; break; /* "Y */
+ case 0x99: c[0] = '\''; c[1] ='Z'; break; /* 'Z */
+ case 0x9a: c[0] = '~'; c[1] ='Z'; break; /* vZ */
+ case 0x9b: c[0] = '\''; c[1] ='Z'; break; /* .Z */
+ case 0x9d: c[0] = '\''; c[1] ='I'; break; /* .I */
+ case 0x9e: c[0] = '-'; c[1] ='d'; break; /* -d */
+ case 0x9f: c[0] = 'S'; break; /* section sign */
+
+ case 0xa0: c[0] = '~'; c[1] ='a'; break; /* ua */
+ case 0xa1: c[0] = ','; c[1] ='a'; break; /* ,a */
+ case 0xa2: c[0] = '\''; c[1] ='c'; break; /* 'c */
+ case 0xa3: c[0] = '~'; c[1] ='c'; break; /* vc */
+ case 0xa4: c[0] = '\''; c[1] ='d'; break; /* 'd */
+ case 0xa5: c[0] = '~'; c[1] ='e'; break; /* ve */
+ case 0xa6: c[0] = ','; c[1] ='e'; break; /* ,e */
+ case 0xa7: c[0] = '~'; c[1] ='g'; break; /* ug */
+ case 0xa8: c[0] = '\''; c[1] ='l'; break; /* 'l */
+ case 0xa9: c[0] = '\''; c[1] ='l'; break; /* 'l */
+ case 0xaa: c[0] = '-'; c[1] ='l'; break; /* -l */
+ case 0xab: c[0] = '\''; c[1] ='n'; break; /* 'n */
+ case 0xac: c[0] = '~'; c[1] ='n'; break; /* vn */
+ case 0xae: c[0] = '"'; c[1] ='o'; break; /* "o */
+ case 0xaf: c[0] = '\''; c[1] ='r'; break; /* 'r */
+
+ case 0xb0: c[0] = '~'; c[1] ='r'; break; /* vr */
+ case 0xb1: c[0] = '\''; c[1] ='s'; break; /* 's */
+ case 0xb2: c[0] = '~'; c[1] ='s'; break; /* vs */
+ case 0xb3: c[0] = ','; c[1] ='s'; break; /* ,s */
+ case 0xb4: c[0] = '\''; c[1] ='t'; break; /* 't */
+ case 0xb5: c[0] = ','; c[1] ='t'; break; /* ,t */
+ case 0xb6: c[0] = '"'; c[1] ='u'; break; /* "u */
+ case 0xb7: c[0] = '\''; c[1] ='u'; break; /* ou */
+ case 0xb8: c[0] = '"'; c[1] ='y'; break; /* "y */
+ case 0xb9: c[0] = '\''; c[1] ='z'; break; /* 'z */
+ case 0xba: c[0] = '~'; c[1] ='z'; break; /* vz */
+ case 0xbb: c[0] = '\''; c[1] ='z'; break; /* .z */
+
+ case 0xbd: c[0] = '!'; break; /* inversed ! */
+ case 0xbe: c[0] = '?'; break; /* inversed ? */
+ case 0xbf: c[0] = 'L'; break; /* pound sign */
+
+ case 0xc0: c[0] = '`'; c[1] ='A'; break; /* `A */
+ case 0xc1: c[0] = '\''; c[1] ='A'; break; /* 'A */
+ case 0xc2: c[0] = '^'; c[1] ='A'; break; /* ^A */
+ case 0xc3: c[0] = '~'; c[1] ='A'; break; /* ~A */
+ case 0xc4: c[0] = '"'; c[1] ='A'; break; /* "A */
+ case 0xc5: c[0] = 'A'; c[1] ='A'; break; /* oA */
+ case 0xc7: c[0] = ','; c[1] ='C'; break; /* ,C */
+ case 0xc8: c[0] = '`'; c[1] ='E'; break; /* `E */
+ case 0xc9: c[0] = '\''; c[1] ='E'; break; /* 'E */
+ case 0xca: c[0] = '^'; c[1] ='E'; break; /* ^E */
+ case 0xcb: c[0] = '^'; c[1] ='E'; break; /* "E */
+ case 0xcc: c[0] = '`'; c[1] ='I'; break; /* `I */
+ case 0xcd: c[0] = '\''; c[1] ='I'; break; /* 'I */
+ case 0xce: c[0] = '^'; c[1] ='I'; break; /* ^I */
+ case 0xcf: c[0] = '"'; c[1] ='I'; break; /* "I */
+ case 0xd0: c[0] = '-'; c[1] ='D'; break; /* -D */
+ case 0xd1: c[0] = '~'; c[1] ='n'; break; /* ~n */
+ case 0xd2: c[0] = '`'; c[1] ='O'; break; /* `O */
+ case 0xd3: c[0] = '\''; c[1] ='O'; break; /* 'O */
+ case 0xd4: c[0] = '^'; c[1] ='O'; break; /* ^O */
+ case 0xd5: c[0] = '~'; c[1] ='O'; break; /* ~O */
+ case 0xd6: c[0] = '"'; c[1] ='O'; break; /* "O */
+ case 0xd9: c[0] = '`'; c[1] ='U'; break; /* `U */
+ case 0xda: c[0] = '\''; c[1] ='U'; break; /* 'U */
+ case 0xdb: c[0] = '^'; c[1] ='U'; break; /* ^U */
+ case 0xdc: c[0] = '"'; c[1] ='U'; break; /* "U */
+ case 0xdd: c[0] = '\''; c[1] ='Y'; break; /* 'Y */
+ case 0xe0: c[0] = '`'; c[1] ='a'; break; /* `a */
+ case 0xe1: c[0] = '\''; c[1] ='a'; break; /* 'a */
+ case 0xe2: c[0] = '^'; c[1] ='a'; break; /* ^a */
+ case 0xe3: c[0] = '~'; c[1] ='a'; break; /* ~a */
+ case 0xe4: c[0] = '"'; c[1] ='a'; break; /* "a */
+ case 0xe5: c[0] = 'a'; c[1] ='a'; break; /* oa */
+ case 0xe7: c[0] = ','; c[1] ='c'; break; /* ,c */
+ case 0xe8: c[0] = '`'; c[1] ='e'; break; /* `e */
+ case 0xe9: c[0] = '\''; c[1] ='e'; break; /* 'e */
+ case 0xea: c[0] = '^'; c[1] ='e'; break; /* ^e */
+ case 0xeb: c[0] = '^'; c[1] ='e'; break; /* "e */
+ case 0xec: c[0] = '`'; c[1] ='i'; break; /* `i */
+ case 0xed: c[0] = '\''; c[1] ='i'; break; /* 'i */
+ case 0xee: c[0] = '^'; c[1] ='i'; break; /* ^i */
+ case 0xef: c[0] = '"'; c[1] ='i'; break; /* "i */
+ case 0xf0: c[0] = '-'; c[1] ='d'; break; /* -d */
+ case 0xf1: c[0] = '~'; c[1] ='n'; break; /* ~n */
+ case 0xf2: c[0] = '`'; c[1] ='o'; break; /* `o */
+ case 0xf3: c[0] = '\''; c[1] ='o'; break; /* 'o */
+ case 0xf4: c[0] = '^'; c[1] ='o'; break; /* ^o */
+ case 0xf5: c[0] = '~'; c[1] ='o'; break; /* ~o */
+ case 0xf6: c[0] = '"'; c[1] ='o'; break; /* "o */
+ case 0xf9: c[0] = '`'; c[1] ='u'; break; /* `u */
+ case 0xfa: c[0] = '\''; c[1] ='u'; break; /* 'u */
+ case 0xfb: c[0] = '^'; c[1] ='u'; break; /* ^u */
+ case 0xfc: c[0] = '"'; c[1] ='u'; break; /* "u */
+ case 0xfd: c[0] = '\''; c[1] ='y'; break; /* 'y */
+
+ /* diacritical marks */
+ case 0x00: c[0] = '`' ; break; /* grave from \` */
+ case 0x01: c[0] = latin1 ? 0xb4 : '\''; break;
+ /* acute from \' */
+ case 0x02: c[0] = '^' ; break; /* circumflex from \^ */
+ case 0x03: c[0] = '~' ; break; /* tilde from \~ */
+ case 0x04: c[0] = '"' ; break; /* diaeresis from \" */
+ case 0x05: c[0] = '"' ; break; /* double acute from \H */
+ case 0x06: c[0] = latin1 ? 0xb0 : '~'; break;
+ /* ring above from \r */
+ case 0x07: c[0] = '~' ; break; /* caron from \v */
+ case 0x08: c[0] = '~' ; break; /* breve from \u */
+ case 0x09: c[0] = '~' ; break; /* macron from \= */
+ case 0x0a: c[0] = '.' ; break; /* dot from \. */
+ case 0x0b: c[0] = latin1 ? 0xb8 : ','; break;
+ /* cedilla from \c */
+ case 0x0c: c[0] = ',' ; break; /* ogonek from \k */
+
+ default : c[0] = '#';
+ }
+
+ cc=c;
+ while (*cc) { outchar(*cc); cc++; }
+
+ return;
+
+} /* t1char */
+
+
+/*
+ * TS1CHAR -- Process a character opcode for a TS1 encoding font.
+ */
+
+void ts1char(unsigned char ch)
+{
+ unsigned char c[4] = {}, *cc;
+ long ucs;
+
+ if (allchar) {
+ outchar(ch);
+ return;
+ }
+ ucs = ts1_to_ucs[ch];
+ if (utf8) {
+ dounichar(ucs);
+ return;
+ }
+ else if ((latin1 && ucs<0x100) || ucs<0x80) {
+ outchar(ucs);
+ return;
+ }
+
+ switch (ch) {
+ case 0x17: /* \capitalcompwordmark */
+ case 0x1F: return; /* \textascendercompwordmark */
+ case 0x0D: /* \textquotestraightbase */
+ case 0x27: c[0] = '\''; break; /* \textquotesingle */
+ case 0x12: c[0] = '"'; break; /* \textquotestraghtdblbase */
+ case 0x15: c[0] = '-'; break; /* \texttwelveudash */
+ case 0x16: c[0] = '-'; c[1] = '-'; /* \textthreequartersemdash */
+ break;
+ case 0x18: c[0] = '<'; c[1] = '-'; /* \textleftarrow */
+ break;
+ case 0x19: c[0] = '-'; c[1] = '>'; /* \textrightarrow */
+ break;
+ case 0x2A: c[0] = '*'; break; /* \textasteriskcentered */
+ case 0x2D: c[0] = '='; break; /* \textdblhyphen */
+ case 0x2F: c[0] = '/'; break; /* \textfractionsolidus */
+ case 0x3C: c[0] = '<'; break; /* \textlangle */
+ case 0x3D: c[0] = '-'; break; /* \textminus */
+ case 0x3E: c[0] = '>'; break; /* \textrangle */
+ case 0x5B: c[0] = '['; break; /* \textlbrackdbl */
+ case 0x5D: c[0] = ']'; break; /* \textrbrackdbl */
+ case 0x5E: c[0] = '^'; break; /* \textuparrow */
+ case 0x5F: c[0] = 'v'; break; /* \textdownarrow */
+ case 0x7E: c[0] = '~'; break; /* \texttildelow */
+ case 0x7F: c[0] = '='; break; /* \textdblhyphenchar */
+ case 0x84: c[0] = '*'; break; /* \textdagger */
+ case 0x85: c[0] = '*'; c[1] = '*'; /* \textdaggerdbl */
+ break;
+ case 0x86: c[0] = '|'; c[1] = '|'; /* \textbardbl */
+ break;
+ case 0x89: if (latin1) {
+ c[0] = 0xb0; c[1] = 'C';
+ }
+ else
+ c[0] = 'C';
+ break; /* \textcelsius */
+ case 0x8B: c[0] = 'c'; break; /* \textcent */
+ case 0x8C: c[0] = 'f'; break; /* \textflorin */
+ case 0x8D: c[0] = 'C'; break; /* \textcentoldstyle */
+ case 0x8E: c[0] = 'W'; break; /* \textwon */
+ case 0x8F: c[0] = 'N'; break; /* \textnaira */
+ case 0x90: c[0] = 'G'; break; /* \textguarani */
+ case 0x91: c[0] = 'P'; break; /* \textpeso */
+ case 0x92: c[0] = 'L'; break; /* \textlira */
+ case 0x93: c[0] = 'R'; break; /* \textrecipe */
+ case 0x94: /* \textinterrobang */
+ case 0x95: c[0] = '!'; c[1] = '?'; /* \textinterrobangdown */
+ break;
+ case 0x97: c[0] = 'T'; c[1] = 'M'; /* \texttrademark */
+ break;
+ case 0x99: c[0] = 'P'; break; /* \textpilcrow */
+ case 0x9B: c[0] = 'N'; c[1] = 'o'; /* \textnumero */
+ break;
+ case 0x9F: c[0] = 'S'; c[1] = 'M'; /* \textservicemark */
+ break;
+ case 0xA0: c[0] = '{'; break; /* \textlquill */
+ case 0xA1: c[0] = '}'; break; /* \textrquill */
+ case 0xA2: c[0] = 'c'; break; /* \textcent */
+ case 0xA3: c[0] = 'L'; break; /* \textsterling */
+ case 0xA5: c[0] = 'Y'; break; /* \textyen */
+ case 0xA6: c[0] = '|'; break; /* \textbrokenbar */
+ case 0xA7: c[0] = 'S'; break; /* \textsection */
+ case 0xA9: c[0] = 'C'; break; /* \textcopyright */
+ case 0xAD: c[0] = 'P'; break; /* \textcircledP */
+ case 0xAE: c[0] = 'R'; break; /* \textregistered */
+ case 0xB6: c[0] = 'P'; break; /* \textparagraph */
+ case 0xB1: c[0] = '+'; c[1] = '-'; /* \textpm */
+ break;
+ case 0xBC: c[0] = '1'; c[1] = '/'; /* \textonequarter */
+ c[2] = '4'; break;
+ case 0xBD: c[0] = '1'; c[1] = '/'; /* \textonehalf */
+ c[2] = '2'; break;
+ case 0xBE: c[0] = '3'; c[1] = '/'; /* \textthreequarters */
+ c[2] = '4'; break;
+ case 0xBF: c[0] = 'E'; break; /* \texteuro */
+ case 0xD6: c[0] = 'x'; break; /* \texttimes */
+ case 0xF6: c[0] = '/'; break; /* \textdiv */
+
+ case 0x30: case 0x31: case 0x32: case 0x33:
+ case 0x34: case 0x35: case 0x36: case 0x37:
+ case 0x38: case 0x39: case 0x3A: case 0x3B:
+ c[0] = ch; break;
+
+ /* diacritical marks */
+ case 0x00: c[0] = '`' ; break; /* grave from \` */
+ case 0x01: c[0] = latin1 ? 0xb4 : '\''; break;
+ /* acute from \' */
+ case 0x02: c[0] = '^' ; break; /* circumflex from \^ */
+ case 0x03: c[0] = '~' ; break; /* tilde from \~ */
+ case 0x04: c[0] = '"' ; break; /* diaeresis from \" */
+ case 0x05: c[0] = '"' ; break; /* double acute from \H */
+ case 0x06: c[0] = latin1 ? 0xb0 : '~'; break;
+ /* ring above from \r */
+ case 0x07: c[0] = '~' ; break; /* caron from \v */
+ case 0x08: c[0] = '~' ; break; /* breve from \u */
+ case 0x09: c[0] = '~' ; break; /* macron from \= */
+ case 0x0a: c[0] = '.' ; break; /* dot from \. */
+ case 0x0b: c[0] = latin1 ? 0xb8 : ','; break;
+ /* cedilla from \c */
+ case 0x0c: c[0] = ',' ; break; /* ogonek from \k */
+
+ default : c[0] = '#';
+ }
+
+ cc=c;
+ while (*cc) { outchar(*cc); cc++; }
+
+ return;
+
+} /* ts1char */
+
+
+/*
+ * T2CHAR -- Process a character opcode for a T2A/T2B/T2C/X2 encoding font.
+ */
+
+void t2char(char flag, unsigned char ch)
+{
+ unsigned char c[4] = {}, *cc;
+ const unsigned short *tex_to_ucs;
+ long ucs;
+
+ if (allchar) {
+ outchar(ch);
+ return;
+ }
+ if (!accent) {
+ switch (ch) {
+ case 0x00: /* grave from \` */
+ case 0x01: /* acute from \' */
+ case 0x02: /* circumflex from \^ */
+ case 0x03: /* tilde from \~ */
+ case 0x04: /* diaeresis from \" */
+ case 0x05: /* double acute from \H */
+ case 0x06: /* ring above from \r */
+ case 0x07: /* caron from \v */
+ case 0x08: /* breve from \u */
+ case 0x09: /* macron from \= */
+ case 0x0a: /* dot from \. */
+ case 0x0b: /* cedilla from \c */
+ case 0x0c: /* ogonek from \k */
+ case 0x12: /* from \f */
+ case 0x13: /* from \C */
+ case 0x14: /* breve from \U */
+ return;
+ }
+ }
+ switch (flag) {
+ case T2AFONT: tex_to_ucs=t2a_to_ucs; break;
+ case T2BFONT: tex_to_ucs=t2b_to_ucs; break;
+ case T2CFONT: tex_to_ucs=t2c_to_ucs; break;
+ case X2FONT : tex_to_ucs=x2_to_ucs; break;
+ default : exit; /* not supported */
+ }
+ ucs = tex_to_ucs[ch];
+ if (utf8) {
+ dounichar(ucs);
+ return;
+ }
+ else if ((latin1 && ucs<0x100) || ucs<0x80) {
+ outchar(ucs);
+ return;
+ }
+
+ switch (ch) {
+ case 0x49: c[0] = 'I'; break; /* \CYRII */
+ case 0x69: c[0] = 'i'; break; /* \cyrii */
+ case 0x4A: c[0] = 'J'; break; /* \CYRJE */
+ case 0x6A: c[0] = 'j'; break; /* \cyrje */
+ case 0x51: c[0] = 'Q'; break; /* \CYRQ */
+ case 0x53: c[0] = 'S'; break; /* \CYRDZE */
+ case 0x57: c[0] = 'W'; break; /* \CYRW */
+ case 0x71: c[0] = 'q'; break; /* \cyrq */
+ case 0x73: c[0] = 's'; break; /* \cyrdze */
+ case 0x77: c[0] = 'w'; break; /* \cyrw */
+ case 0x0E: c[0] = '<'; break; /* \cyrlangle */
+ case 0x0F: c[0] = '>'; break; /* \cyrrangle */
+ case 0x15: c[0] = '-'; c[1] = '-'; /* \textendash */
+ break;
+ case 0x16: c[0] = '-'; c[1] = '-'; /* \textemdash */
+ c[2] = '-'; break;
+ case 0x27: /* \textquoteright */
+ case 0x60: c[0] = '\''; break; /* \textquoteleft */
+ case 0x10: /* \textquotedblleft */
+ case 0x11: /* \textquotedblright */
+ case 0xBD: c[0] = '"'; break; /* \quotedblbase */
+ case 0x20: c[0] = '_'; break; /* \textvisiblespace */
+ case 0x17: return; /* \textcompwordmark */
+ case 0x7E: c[0] = '~'; break; /* \textasciitilde */
+ case 0x9D: c[0] = 'N'; c[1] = 'o'; /* \textnumero */
+ break;
+ case 0x9F: c[0] = 'S'; break; /* \textsection */
+ case 0xBE: c[0] = '<'; c[1] = '<'; /* \guillemotleft */
+ break;
+ case 0xBF: c[0] = '>'; c[1] = '>'; /* \guillemotright */
+ break;
+
+ /* diacritical marks */
+ case 0x00: c[0] = '`' ; break; /* grave from \` */
+ case 0x01: c[0] = latin1 ? 0xb4 : '\''; break;
+ /* acute from \' */
+ case 0x02: c[0] = '^' ; break; /* circumflex from \^ */
+ case 0x03: c[0] = '~' ; break; /* tilde from \~ */
+ case 0x04: c[0] = '"' ; break; /* diaeresis from \" */
+ case 0x05: c[0] = '"' ; break; /* double acute from \H */
+ case 0x06: c[0] = latin1 ? 0xb0 : '~'; break;
+ /* ring above from \r */
+ case 0x07: c[0] = '~' ; break; /* caron from \v */
+ case 0x08: c[0] = '~' ; break; /* breve from \u */
+ case 0x09: c[0] = '~' ; break; /* macron from \= */
+ case 0x0a: c[0] = '.' ; break; /* dot from \. */
+ case 0x0b: c[0] = latin1 ? 0xb8 : ','; break;
+ /* cedilla from \c */
+ case 0x0c: c[0] = ',' ; break; /* ogonek from \k */
+ case 0x14: c[0] = '~' ; break; /* breve from \U */
+
+ default : c[0] = '#';
+ }
+ if (flag != X2FONT) {
+ switch (ch) {
+ case 0x19: c[0] = 'i'; break; /* dotless i */
+ case 0x1A: c[0] = 'j'; break; /* dotless j */
+ case 0x1B: c[0] = 'f'; c[1] = 'f'; /* ligature */
+ break;
+ case 0x1C: c[0] = 'f'; c[1] = 'i'; /* ligature */
+ break;
+ case 0x1D: c[0] = 'f'; c[1] = 'l'; /* ligature */
+ break;
+ case 0x1E: c[0] = 'f'; c[1] = 'f'; /* ligature */
+ c[2] = 'i'; break;
+ case 0x1F: c[0] = 'f'; c[1] = 'f'; /* ligature */
+ c[2] = 'l'; break;
+ }
+ }
+
+ cc=c;
+ while (*cc) { outchar(*cc); cc++; }
+
+ return;
+
+} /* t2char */
+
+
+/*
+ * OT2CHAR -- Process a character opcode for a OT2 encoding font.
+ */
+
+void ot2char(unsigned char ch)
+{
+ unsigned char c[4] = {}, *cc;
+ long ucs;
+
+ if (allchar) {
+ outchar(ch);
+ return;
+ }
+ if (!accent) {
+ switch (ch) {
+ case 0x20: /* diaeresis from \" */
+ case 0x24: /* breve from \U */
+ case 0x26: /* acute from \' */
+ case 0x40: /* breve from \u */
+ return;
+ }
+ }
+ ucs = ot2_to_ucs[ch];
+ if (utf8) {
+ dounichar(ucs);
+ return;
+ }
+ else if ((latin1 && ucs<0x100) || ucs<0x80) {
+ outchar(ucs);
+ return;
+ }
+
+ switch (ch) {
+ case 0x04: c[0] = 'I'; break; /* \CYRII */
+ case 0x0C: c[0] = 'i'; break; /* \cyrii */
+ case 0x4A: c[0] = 'J'; break; /* \CYRJE */
+ case 0x6A: c[0] = 'j'; break; /* \cyrje */
+ case 0x16: c[0] = 'S'; break; /* \CYRDZE */
+ case 0x1E: c[0] = 's'; break; /* \cyrdze */
+ case 0x7B: c[0] = '-'; c[1] = '-'; /* \textendash */
+ break;
+ case 0x7C: c[0] = '-'; c[1] = '-'; /* \textemdash */
+ c[2] = '-'; break;
+ case 0x7D: c[0] = 'N'; c[1] = 'o'; /* \textnumero */
+ break;
+ case 0x3C: c[0] = '<'; c[1] = '<'; /* \guillemotleft */
+ break;
+ case 0x3D: c[0] = 'i'; break; /* dotless i */
+ case 0x3E: c[0] = '>'; c[1] = '>'; /* \guillemotright */
+ break;
+ case 0x27: /* \textquoteright */
+ case 0x60: c[0] = '\''; break; /* \textquoteleft */
+ case 0x22: /* \textquotedblright */
+ case 0x5C: c[0] = '"'; break; /* \textquotedblleft */
+
+ /* diacritical marks */
+ case 0x20: c[0] = '"' ; break; /* diaeresis from \" */
+ case 0x24: c[0] = '~' ; break; /* breve from \u */
+ case 0x26: c[0] = latin1 ? 0xb4 : '\''; break;
+ /* acute from \' */
+ case 0x40: c[0] = '~' ; break; /* breve from \U */
+
+ default : c[0] = '#';
+ }
+
+ cc=c;
+ while (*cc) { outchar(*cc); cc++; }
+
+ return;
+
+} /* ot2char */
+
+
+
+/*
+ * OUTCHAR -- Here we put the character into the current page.
+ *
+ * This function includes some code to handle Latin1/Scandinavian
+ * characters. I think that code doesn't belong here. IT
+ * SHOULD BE MOVED OUT.
+ */
+
+void outchar(long ch)
+{
+ register int i, j;
+ register long dia;
+
+/* fprintf(stderr, "hor: %ld, ver: %ld\n", h, v); */
+
+#if defined(MSDOS) || defined(THINK_C)
+ if (labs(v - currentline->vv) > lineheight / 2L)
+#else
+ if (abs(v - currentline->vv) > lineheight / 2L)
+#endif
+ currentline = findline();
+
+#if 0
+ j = (int) (((double) h / (double) maxpagewidth) * (ttywidth-1)) + 1;
+#else
+ j = (int) (h / charwidth);
+#endif
+ if (j > rightmargin) /* leftmargin <= j <= rightmargin */
+ j = rightmargin;
+ else if (j < leftmargin)
+ j = leftmargin;
+ foo = leftmargin - 1;
+
+ /*
+ * This code does not really belong here ...
+ *
+ * The following is very specialized code, it handles national *
+ * Swe/Fin characters. They are respectively: a and o with two *
+ * dots ("a & "o) and a with a circle (Oa). In Swe/Fin "ASCII" *
+ * these characters replace {}|[] and \. TeX outputs these by *
+ * first issuing the dots or circle and then backspace and set *
+ * the a or o. When dvi2tty finds an a or o it searches in the *
+ * near vicinity for the character codes that represent circle *
+ * or dots and if one is found the corresponding national char *
+ * replaces the special character codes. *
+ */
+ if (!allchar && compose && scascii) {
+ if (strchr("aAoO", ch) != NULL) {
+ for (i = IMAX(leftmargin, j-2);
+ i <= IMIN(rightmargin, j+2);
+ i++)
+ if ((currentline->text[i - leftmargin] == 127) || /* DEL */
+ (currentline->text[i - leftmargin] == 34) || /* " */
+ (currentline->text[i - leftmargin] == 23))
+ foo = i;
+ if (foo >= leftmargin) {
+ j = (int) foo;
+ switch (currentline->text[j - leftmargin]) {
+ case 127 :
+ case 34 : /* DEL or " */
+ if (ch == 'a')
+ ch = '{'; /* } vi */
+ else if (ch == 'A') /* dots ... */
+ ch = '[';
+ else if (ch == 'o')
+ ch = '|';
+ else if (ch == 'O')
+ ch = '\\';
+ break;
+ case 23 : if (ch == 'a')
+ ch = '}'; /* { vi */
+ else if (ch == 'A') /* circle */
+ ch = ']';
+ break;
+ }
+ }
+ }
+ }
+ if (!allchar && compose && (latin1 || utf8)) {
+ if (strchr("aAeEiIoOuUnCcNYy", ch) != NULL || (ch & MAX_UNICODE) == 0x131) {
+ for (i = IMAX(leftmargin, j-2);
+ i <= IMIN(rightmargin, j+2);
+ i++) {
+ dia = currentline->text[i - leftmargin] & MAX_UNICODE;
+ if ((dia == 0x60) || /* grave */
+ (dia == 0xB0) || /* ring above */
+ (dia == 0x2DA) || /* ring above */
+ (dia == 0xB4) || /* acute */
+ (dia == 0x5E) || /* circumflex */
+ (dia == 0xA8) || /* diaeresis */
+ (dia == 0xB8) || /* cedilla */
+ (dia == 0x7E) || /* tilde */
+ (dia == 0x2DC)) /* tilde */
+ foo = i;
+ }
+ if (foo >= leftmargin) {
+ j = (int) foo;
+ dia = currentline->text[j - leftmargin] & MAX_UNICODE;
+ switch (dia) {
+ case 0x60: /* grave */
+ if (ch == 'a') ch = 0xe0;
+ else if (ch == 'A') ch = 0xc0;
+ else if (ch == 'e') ch = 0xe8;
+ else if (ch == 'E') ch = 0xc8;
+ else if (ch == 'i') ch = 0xec;
+ else if ((ch & MAX_UNICODE) == 0x131) ch = 0xec;
+ else if (ch == 'I') ch = 0xcc;
+ else if (ch == 'o') ch = 0xf2;
+ else if (ch == 'O') ch = 0xd2;
+ else if (ch == 'u') ch = 0xf9;
+ else if (ch == 'U') ch = 0xd9;
+ break;
+ case 0xB0: /* ring above */
+ case 0x2DA:
+ if (ch == 'a') ch = 0xe5;
+ else if (ch == 'A') ch = 0xc5;
+ break;
+ case 0xB4: /* acute */
+ if (ch == 'a') ch = 0xe1;
+ else if (ch == 'A') ch = 0xc1;
+ else if (ch == 'e') ch = 0xe9;
+ else if (ch == 'E') ch = 0xc9;
+ else if (ch == 'i') ch = 0xed;
+ else if ((ch & MAX_UNICODE) == 0x131) ch = 0xed;
+ else if (ch == 'I') ch = 0xcd;
+ else if (ch == 'o') ch = 0xf3;
+ else if (ch == 'O') ch = 0xd3;
+ else if (ch == 'u') ch = 0xfa;
+ else if (ch == 'U') ch = 0xda;
+ else if (ch == 'y') ch = 0xfd;
+ else if (ch == 'Y') ch = 0xdd;
+ break;
+ case 0x5E: /* circumflex */
+ if (ch == 'a') ch = 0xe2;
+ else if (ch == 'A') ch = 0xc2;
+ else if (ch == 'e') ch = 0xea;
+ else if (ch == 'E') ch = 0xca;
+ else if (ch == 'i') ch = 0xee;
+ else if ((ch & MAX_UNICODE) == 0x131) ch = 0xee;
+ else if (ch == 'I') ch = 0xce;
+ else if (ch == 'o') ch = 0xf4;
+ else if (ch == 'O') ch = 0xd4;
+ else if (ch == 'u') ch = 0xfb;
+ else if (ch == 'U') ch = 0xdb;
+ break;
+ case 0xA8: /* diaeresis */
+ if (ch == 'a') ch = 0xe4;
+ else if (ch == 'A') ch = 0xc4;
+ else if (ch == 'e') ch = 0xeb;
+ else if (ch == 'E') ch = 0xcb;
+ else if (ch == 'i') ch = 0xef;
+ else if ((ch & MAX_UNICODE) == 0x131) ch = 0xef;
+ else if (ch == 'I') ch = 0xcf;
+ else if (ch == 'o') ch = 0xf6;
+ else if (ch == 'O') ch = 0xd6;
+ else if (ch == 'u') ch = 0xfc;
+ else if (ch == 'U') ch = 0xdc;
+ else if (ch == 'y') ch = 0xff;
+ else if (ch == 'Y' && utf8) ch = 0x178;
+ break;
+ case 0xB8: /* cedilla */
+ if (ch == 'c') ch = 0xe7;
+ else if (ch == 'C') ch = 0xc7; /* It does not seem to work */
+ break;
+ case 0x7E: /* tilde */
+ case 0x2DC:
+ if (ch == 'a') ch = 0xe3;
+ else if (ch == 'A') ch = 0xc3;
+ else if (ch == 'o') ch = 0xf5;
+ else if (ch == 'O') ch = 0xd5;
+ else if (ch == 'n') ch = 0xf1;
+ else if (ch == 'N') ch = 0xd1;
+ break;
+ }
+ if (utf8 && ch>0x7f) ch |= IS_UNICODE;
+ }
+ }
+ }
+ /*----------------- end of 'latin1 / Scandinavian code' ----------------*/
+
+ if (foo == leftmargin-1) {
+ if (japan) {
+ while (((currentline->text[j - leftmargin] != SPACE) ||
+ (kanji1 && (currentline->text[j+kanji1 - leftmargin] != SPACE)))
+ && (j < rightmargin)) {
+ j++;
+ h += charwidth;
+ }
+ } else {
+ while (j < rightmargin &&
+ (currentline->text[j - leftmargin] != SPACE)) {
+ j++;
+ h += charwidth;
+ }
+ }
+ }
+ if ( allchar || ((ch >= SPACE) && (ch != DEL)) ||
+ ((latin1 || scascii) && (ch == 23)) ) {
+ /* ((latin1 || scascii) && (ch == DEL)) ) if VMS ??? */
+ if (j < rightmargin)
+ currentline->text[j - leftmargin] = ch;
+ else
+ currentline->text[rightmargin - leftmargin] = '@';
+ if (j > currentline->charactercount)
+ currentline->charactercount = j;
+ if (j < firstcolumn)
+ firstcolumn = j;
+ }
+ h += charwidth;
+
+ return;
+
+} /* outchar */
+
+
+
+/*
+ * PUTCHARACTER -- Output character, don't change h
+ */
+
+void putcharacter(long charnr)
+{
+ register long saveh;
+
+ saveh = h;
+ if (nttj || is8bit)
+ dochar((unsigned char) charnr);
+ else if (allchar || ((charnr >= 0) && (charnr <= LASTCHAR)))
+ outchar((unsigned char) charnr);
+ else
+ setchar(charnr);
+ h = saveh;
+
+ return;
+
+} /* putcharacter */
+
+
+
+/*
+ * SETCHAR -- Should print characters with character code>127 from
+ * current font. Note that the parameter is a dummy, since
+ * ascii-chars are<=127.
+ */
+
+void setchar(long charnr)
+{
+
+ if (is8bit)
+ dochar((unsigned char) charnr);
+ else
+ outchar((unsigned char)(allchar ? charnr : '#'));
+
+ return;
+
+} /* setchar */
+
+
+static const char *ptex_fontchk[] = {
+ "min", "goth", "jis",
+ "hmin", "hgoth", "hmgoth", /* japanese-otf package */
+ "nmlmin", "nmlgoth", "nmlmgoth",
+ "hiramin", "hirakaku", "hiramaru",
+ NULL /* end */
+};
+
+static const char *uptex_fontchk[] = {
+ "umin", "ugoth", "ujis",
+ "upjis", "upjpn", "upsch", "uptch", "upkor",
+ "uphmin", "uphgoth", "uphmgoth", /* japanese-otf package */
+ "upnmlmin", "upnmlgoth", "upnmlmgoth",
+ "uphiramin", "uphirakaku", "uphiramaru",
+ NULL /* end */
+};
+
+static const char *jtex_fontchk[] = {
+ "dmj", "dgj",
+ NULL /* end */
+};
+
+static int checkjfont(const char **jfontlist, const char *name)
+{
+ int i, len;
+ const char *tmpfont;
+
+ i=0;
+ while ( (tmpfont=jfontlist[i]) != NULL ) {
+ len=strlen(tmpfont);
+ if ( !strncmp(tmpfont, name, len) ) return 1;
+ i++;
+ }
+ return 0;
+} /* checkjfont */
+
+
+
+/*
+ * FONTDEF -- Process a font definition.
+ */
+
+void fontdef(int x)
+{
+ register int i;
+ char * name;
+ font * fnt;
+ int namelen;
+ long fntnum;
+ int new = 0;
+
+ fntnum = num(x);
+ (void) get4(); /* checksum */
+ (void) get4(); /* scale */
+ (void) get4(); /* design */
+ namelen = (int) get1() + (int) get1();
+ fnt = fonts;
+ while (fnt != NULL && fnt->num != fntnum) /* does fontnum exist */
+ fnt = fnt->next;
+ if (fnt == NULL) {
+ if ((fnt = (font *) malloc(sizeof(font))) == NULL) {
+ perror("fontdef");
+ exit(1);
+ }
+ fnt->num = fntnum;
+ new = 1;
+ }
+ else
+ free(fnt->name); /* free old name */
+ if ((name = (char *) malloc((namelen+1) * sizeof(char))) == NULL) {
+ perror("fontdef");
+ exit(1);
+ }
+
+ for (i = 0; i < namelen; i++)
+ name[i] = get1();
+ name[i] = '\0'; /* properly end string */
+ fnt->name = name;
+ if (new) {
+ fnt->next = fonts;
+ fonts = fnt;
+ }
+
+ /*
+ * some magic to learn about font types...
+ */
+ fonts->flags = 0;
+ fonts->is8bit = FALSE;
+
+ if ((asciip == FALSE && nttj == FALSE && uptex == FALSE)
+ && (!jdetect) && jautodetect) {
+ if ( checkjfont(ptex_fontchk, name) ) {
+ /* Detect as ASCII TeX */
+ asciip = TRUE;
+ nttj = uptex = FALSE;
+ japan = jdetect = TRUE;
+ fonts->flags |= MIFONT;
+ set_enc_string (NULL, PTEX_INTERNAL_ENC);
+ } else if ( checkjfont(uptex_fontchk, name) ) {
+ /* Detect as upTeX */
+ uptex = TRUE;
+ nttj = asciip = FALSE;
+ japan = jdetect = TRUE;
+ fonts->flags |= MIFONT;
+ enable_UPTEX(true);
+ set_enc_string (NULL, UPTEX_INTERNAL_ENC);
+ } else if ( checkjfont(jtex_fontchk, name) ) {
+ /* Detect as NTT JTeX */
+ nttj = TRUE;
+ asciip = uptex = FALSE;
+ japan = jdetect = TRUE;
+ fonts->flags |= JPFONT;
+ set_enc_string (NULL, JTEX_INTERNAL_ENC);
+ }
+ }
+ if (nttj)
+ fonts->fontnum = getjsubfont(name);
+ else
+ fonts->fontnum = 0;
+
+ if ((strncmp(name, "ec", 2)) == 0) {
+ fonts->flags = T1FONT;
+ fonts->is8bit = TRUE;
+ return;
+ }
+ else if ((strncmp(name, "tc", 2)) == 0 ||
+ (strncmp(name, "ts1", 3)) == 0) {
+ fonts->flags = TS1FONT;
+ fonts->is8bit = TRUE;
+ return;
+ }
+ else if ((strncmp(name, "wn", 2)) == 0) {
+ fonts->flags = OT2FONT;
+ return;
+ }
+ else if ((strncmp(name, "la", 2)) == 0) {
+ fonts->flags = T2AFONT;
+ fonts->is8bit = TRUE;
+ return;
+ }
+ else if ((strncmp(name, "lb", 2)) == 0) {
+ fonts->flags = T2BFONT;
+ fonts->is8bit = TRUE;
+ return;
+ }
+ else if ((strncmp(name, "lc", 2)) == 0) {
+ fonts->flags = T2CFONT;
+ fonts->is8bit = TRUE;
+ return;
+ }
+ else if ((strncmp(name, "rx", 2)) == 0) {
+ fonts->flags = X2FONT;
+ fonts->is8bit = TRUE;
+ return;
+ }
+ if ((strstr(name, "sy")) != NULL)
+ fonts->flags = SYMFONT;
+ if ((strstr(name, "tt")) != NULL)
+ fonts->flags = TTFONT;
+ if ((strstr(name, "mi")) != NULL)
+ fonts->flags = MIFONT;
+
+ return;
+
+} /* fontdef */
+
+
+
+#define NJSUBS 33
+const char *jsf_names[]={
+ "sy", "roma", "hira", "kata", "greek", "russian", "keisen",
+ "ka", "kb", "kc", "kd", "ke", "kf", "kg", "kh", "ki", "kj",
+ "kk", "kl", "km", "kn", "ko", "kp", "kq", "kr", "ks", "kt",
+ "ku", "kv", "kw", "kx", "ky", "kz"
+};
+
+
+int getjsubfont(char *s)
+{
+ int jf;
+
+ if (strlen(s) > 3 && s[0] == 'd' && (s[1] == 'm' || s[1] == 'g') && s[2] == 'j') {
+ for (jf = 0; jf < NJSUBS; jf++) {
+ if (strncmp(&s[3], jsf_names[jf], strlen(jsf_names[jf])) == 0)
+ return jf+1;
+ }
+ }
+
+ return 0;
+
+} /* getjsubfont */
+
+
+
+/*
+ * SETFONT -- Switch to specific font. Try to find out if it is a symbol
+ * font.
+ * Option -c allchar does not pertain to this portion, so symbols
+ * are still translated.
+ */
+
+void setfont(long fntnum)
+{
+ char * s;
+ const char * d;
+
+ symbolfont = FALSE;
+ ttfont = FALSE;
+ mifont = FALSE;
+ fnt = fonts;
+
+ while (fnt != NULL && fnt->num != fntnum)
+ fnt = fnt->next;
+
+ if (fnt == NULL) {
+ /* error : font not found */
+ return;
+ }
+
+ if (fnt->fontnum == 0) {
+ symbolfont = fnt->flags == SYMFONT;
+ ttfont = fnt->flags == TTFONT;
+ mifont = fnt->flags == MIFONT;
+ is8bit = fnt->is8bit;
+ }
+
+ s = fnt->name;
+ if (printfont) {
+ d = delim; /* print delim and font name if -b was chosen */
+ while (*d) {putcharacter(*d); d++;}
+ while (*s) {putcharacter(*s); s++;}
+ while (d-- > delim) {putcharacter(*d);}
+ }
+
+ return;
+
+} /* setfont */
+
+
+
+void jischar(unsigned long ch)
+{
+ unsigned int Ku, Ten;
+
+ compute_jis(fnt->fontnum, (unsigned int) ch, &Ku, &Ten);
+ kanji1 = 1;
+ outchar((unsigned char)(Ku+128));
+ kanji1 = 0;
+ outchar((unsigned char)(Ten+128));
+
+ return;
+
+} /* jischar */
+
+#define kushift(c) c+0x20
+#define tenshift(c) c+0x20
+
+void compute_jis(int f, unsigned int c, unsigned int *ku, unsigned int *ten)
+{
+ int n;
+
+ if (f <= 7) {
+ if (f == 1) {
+ if (c >= 100) {
+ *ku = kushift(2);
+ *ten = tenshift(c-100);
+ }
+ else {
+ *ku = kushift(1);
+ *ten = tenshift(c);
+ }
+ }
+ else if (f == 2) {
+ *ku = kushift(3);
+ *ten = tenshift(c-32);
+ }
+ else {
+ *ku = kushift(f+1);
+ *ten = tenshift(c);
+ }
+ }
+ else if (f <= 19) { /* Daiichi Suijun */
+ n = (f-8)*256+c;
+ *ku = kushift((n/94)+16);
+ *ten = tenshift((n%94)+1);
+ }
+ else { /* Daini Suijun */
+ n = (f-20)*256+c;
+ *ku = kushift((n/94)+48);
+ *ten = tenshift((n%94)+1);
+ }
+
+ return;
+
+} /* compute_jis */
+
+
+
+/*
+ * VMS CODE
+ */
+
+#if defined(VMS)
+long vmsseek(fp,n,dir)
+FILE *fp;
+long n;
+long dir;
+{
+ long k,m,pos,val,oldpos;
+ struct stat buffer;
+
+ for (;;) { /* loops only once or twice */
+ switch (dir) {
+ case 0: /* from BOF */
+ oldpos = vms_ftell(fp);
+ k = n & 511;
+ m = n >> 9;
+ if (((*fp)->_cnt) && ((oldpos >> 9) == m)) {
+ val = 0; /* still in */
+ (*fp)->_ptr = ((*fp)->_base) + k;
+ (*fp)->_cnt = 512 - k;
+ }
+ else {
+ val = fseek(fp, m << 9, 0);
+ if (val == 0) {
+ (*fp)->_cnt = 0;
+ (void) fgetc(fp);
+ (*fp)->_ptr = ((*fp)->_base) + k;
+ (*fp)->_cnt = 512 - k;
+ }
+ }
+ return(val);
+
+ case 1: pos = vms_ftell(fp);
+ if (pos == EOF)
+ return (EOF);
+ n += pos;
+ dir = 0;
+ break;
+
+ case 2: val = fstat(fileno(fp), &buffer);
+ if (val == EOF)
+ return (EOF);
+ n += buffer.st_size - 1;
+
+ dir = 0;
+ break;
+
+ default : return (EOF);
+ }
+ }
+
+ /* NOTREACHED */
+
+} /* vmsseek */
+
+
+
+long vms_ftell(fp)
+FILE *fp;
+{
+ char c;
+ long pos;
+ long val;
+
+ if ((*fp)->_cnt == 0) {
+ c = fgetc(fp);
+ val = vms_ungetc(c, fp);
+ if (val != c)
+ return (EOF);
+ }
+ pos = ftell(fp);
+ if (pos >= 0)
+ pos += ((*fp)->_ptr) - ((*fp)->_base);
+
+ return (pos);
+
+} /* vms_ftell */
+
+
+
+long vms_ungetc(c,fp)
+char c;
+FILE *fp;
+{
+
+ if ((c == EOF) && feof(fp))
+ return (EOF);
+
+ if ((*fp)->_cnt >= 512)
+ return (EOF);
+
+ (*fp)->_cnt++;
+ (*fp)->_ptr--;
+ *((*fp)->_ptr) = c;
+
+ return (c);
+
+} /*vms_ungetc */
+#endif