/****************************************************************************** * Marcel Mol: 1990-03-27 (UUCP: marcel@duteca.tudelft.nl) * Fixed bug that causes the program to hang when it finds a * fontname with an 's' in it not followed by an 'y'. * Thanks to Paul Orgren (orgren@Stars.Reston.Unisys.COM). * Marcel Mol: 1990-02-04 (UUCP: marcel@duteca.tudelft.nl) * First attempt to recognize symbol fonts, so bullets (in * itemized lists) are translated to a proper character instead * an awfull ligature. * Version 4.0. * Marcel Mol: 1990-02-01 (UUCP: marcel@duteca.tudelft.nl) * Included port to VMS (off Joseph Vasallo and Seppo Rantala) * into latest version. Hope things still work, cannot test it ... * Joseph Vasallo & Seppo Rantala: 1989-09-05 (Internet: rantala@tut.FI) * Ported to work under VAX/VMS V4.4 & VAXC V2.4 or higher. * Fixed bugs in using Swedish/Finnish characters. * Marcel Mol: 1989-02-14 (UUCP: duteca!marcel) * Fixed check for .dvi extension. * Allowed more ligatures. * Fixed side effect bugs (2 gets as function arguments). * Version 3.2. * Marcel Mol: 1989-01-19 (UUCP: duteca!marcel) * Changed in option handling, no change * in user interface (only the undocumented * feature -e). * Version 3.1. * Marcel Mol: 1989-01-11 (UUCP: duteca!marcel) * Changed some longs to ints. * It now also runs on MSDOS Microsoft C 5.1 * New version: 3.0 * Marcel Mol: 1989-01-03 (UUCP: duteca!marcel) * Fixed a bugs concerning pager programs * and scanning environment variable DVI2TTY. * Marcel Mol: 1988-10-25 (UUCP: duteca!marcel) * dvi2tty.c dvi2tty.h dvistuff.c commands.h * Converted program to C. * improved spacing between words/characters. * bogart:/usr/alla/zap/dvitty/dvitty.p 1986-08-15 20:24:31, * Version to be sent to mod.sources ready. * New option since last version: * -Fprog Pipe output to prog. Can be used to get a different * pager than the default. * bogart:/usr/alla/zap/dvitty/dvitty.p 1986-01-13 21:49:31, * Environment variable DVITTY is read and options can be set from it. * These are the currently implemented options: * -ofile Write output to file, else write to stdout, * possibly piped through a pager if stdout is a tty. * -plist Print pages whos TeX-page-number are in list. * List is on the form 1,3:6,8 to choose pages * 1,3-6 and 8. TeX-nrs can be negative: -p-1:-4,4 * -Plist Print pages whos sequential number are in list. * -wn Print the lines with width n characters, default is * 80. Wider lines gives better results. * -q Don't try to pipe to a pager. * -f Try to pipe to a pager if output is a tty. * -Fname Specify a pager program. * Default of -q and -f is a compile time option, a constant. * -l Write '^L' instead of formfeed between pages. * -u Don't try to find Scandinavian characters (they will * print as a:s and o:s if this option is choosen). * -s Scandinavian characters printed as }{|][\. * Default of -s and -u is a compile time option, a constant. * bogart:/usr/alla/zap/dvitty/dvitty.p 1986-01-10 18:51:03, * Argument parsing, and random access functions (external, in C) * and other OS-dependent stuff (in C). Removed private 'pager' & * tries to pipe through PAGER (environment var) or, if PAGER not * defined, /usr/ucb/more. Some changes for efficency. * bogart:/usr/alla/svante/dvitty/dvitty.p 1985-07-15 20:51:00, * The code for processing dvi-files running on UNIX (UCB-Pascal) * but no argument parsing. * VERA::SS:DVITTY.PAS.140, 30-Mar-85 05:43:56, * Edit: Svante Lindahl * VERA::SS:DVITTY.PAS.136, 15-Jan-85 13:52:59, * Edit: Svante Lindahl, final Twenex version !!!?? * VERA::SS:DVITTY.PAS.121, 14-Jan-85 03:10:22, * Edit: Svante Lindahl, cleaned up and fixed a lot of little things * VERA::SS:DVITTY.PAS.25, 15-Dec-84 05:29:56, * Edit: Svante Lindahl, COMND-interface, including command line scanning * VERA::SS:DVITTY.PAS.23, 10-Dec-84 21:24:41, * Edit: Svante Lindahl, added command line scanning with Rscan-JSYS * VERA::DVITTY.PAS.48, 8-Oct-84 13:26:30, * Edit: Svante Lindahl, fixed switch-parsing, destroyed by earlier patches * VERA::DVITTY.PAS.45, 29-Sep-84 18:29:53, * Edit: Svante Lindahl * * dvitty - get an ascii representation of a dvi-file, suitable for ttys * * This program, and any documentation for it, is copyrighted by Svante * Lindahl. It may be copied for non-commercial use only, provided that * any and all copyright notices are preserved. * * Please report any bugs and/or fixes to: * * UUCP: {seismo,mcvax,cernvax,diku,ukc,unido}!enea!ttds!zap * ARPA: enea!ttds!zap@seismo.CSS.GOV * or Svante_Lindahl_NADA%QZCOM.MAILNET@MIT-MULTICS.ARPA * EAN: zap@cs.kth.sunet */ #include "dvi2tty.h" #if defined(VMS) #include unixio #endif /*-----------------------------------------------------------------------*/ /* The following constants may be toggled before compilation to */ /* customize the default behaviour of the program for your site. */ /* Whichever their settings are, the defaults can be overridden at */ /* runtime. */ /*-----------------------------------------------------------------------*/ #define DEFSCAND FALSE /* default is Scandinavian, toggle this if you */ /* don't have terminals with Scand. nat. chars */ #define WANTPAGER TRUE /* default: try to pipe through a pager (like */ /* more) if stdout is tty and no -o switch */ #define DEFPAGER "/usr/bin/more" /*------------------ end of customization constants ---------------------*/ #define MAXLEN 100 /* size of char-arrays for strings */ #if defined(MSDOS) || defined(VMS) #define OPTSET "wepPousl" /* legal options */ #define OPTWARG "wepPo" /* options with argument */ #else #define OPTSET "wepPousqlfF"/* legal options */ #define OPTWARG "wepPoF" /* options with argument */ #endif /* * USAGE CODES */ #define wrnge 1 /* width switch arg out of range */ #define ign 2 /* ignore cause, print 'Usage:..' */ #define nan 3 /* not a number where one expected */ #define gae 4 /* garbage at end */ #define bdlst 5 /* bad page-numberlist */ #define onef 6 /* only one dvifile allowed */ #define bdopt 7 /* bad option */ #define onepp 8 /* only one page list allowed */ #define noarg 9 /* argument expected */ char *dvi2tty = "@(#) dvi2tty.c 4.1 27/03/90 M.J.E. Mol (c) 1989, 1990"; /*---------------------------------------------------------------------------*/ printlisttype * currentpage; /* current page to print */ printlisttype * firstpage; /* first page selected */ printlisttype * lastpage; /* last page selected */ FILE * DVIfile; FILE * output; bool outputtofile; /* tells if output goes to file or stdout */ int ttywidth; /* max nr of chars per printed line */ int espace; /* to fake calcs with ttywidth */ long foo; /* utility variable, "register" */ #if !defined(MSDOS) && !defined(VMS) bool pager; /* tells if output is piped to a pager */ char * path; /* name of the pager to run */ #endif char * progname; /* our name */ int Argc; char ** Argv; char DVIfilename[MAXLEN]; char * OUTfilename; char optch; /* for option handling */ /*---------------------------------------------------------------------------*/ #if defined(MSDOS) void main (int, char **); void setoption (char *); void getargs (void); void getpages (int, char *); void plcnxt (int); void getfname (char *); int getinteger(int *, int *, char *); void usage (int); #else char * getenv (); FILE * popen (); void main (); void setoption (); void getargs (); void getpages (); void plcnxt (); void getfname (); int getinteger(); void usage (); #endif /****************************************************************************/ /* */ /* M A I N */ /* */ /****************************************************************************/ void main(argc, argv) int argc; char ** argv; { progname = *argv; Argc = argc; Argv = argv; getargs(); /* read command line arguments */ #if defined(MSDOS) if ((DVIfile = fopen(DVIfilename, "rb")) == NULL) #else #if defined(VMS) if ((DVIfile = fopen(DVIfilename, "r","ctx=rec")) == NULL) #else if ((DVIfile = fopen(DVIfilename, "r")) == NULL) #endif #endif errorexit(filop); /* can't open dvifile */ if (outputtofile) { /* open the outfile, if needed */ if ((output = fopen(OUTfilename, "w")) == NULL) errorexit(filcr); #if !defined(MSDOS) && !defined(VMS) pager = FALSE; #endif } else { output = stdout; #if !defined(MSDOS) && !defined(VMS) if (isatty(fileno(output)) && pager) { /* try to pipe to a pager */ if ((output = popen(path, "w")) == NULL) /* get pipe to pager */ errorexit(pipcr); /* make output to output */ } else pager = FALSE; #endif } dvimain(); #if !defined(MSDOS) && !defined(VMS) if (pager) pclose(output); /* close pipe to pager */ #endif exit(0); } /* main */ /*----------------------------------------------------------------------------*/ void setoption(optarg) char *optarg; { int j = 0; int ret; while (strchr(OPTSET, optch) != NULL) { switch (optch) { #if !defined(MSDOS) && !defined(VMS) case 'q' : pager = FALSE; break; case 'f' : pager = TRUE; break; #endif case 'l' : noffd = TRUE; break; case 's' : scascii = TRUE; break; case 'u' : scascii = FALSE; break; case 'P' : sequenceon = TRUE; /* fall through */ case 'p' : if (pageswitchon) usage(onepp); getpages(j, optarg); break; case 'w' : if (getinteger(&ttywidth, &j, optarg)) usage(nan); if (optarg[j] != '\0') usage(gae); if ((ttywidth < 16) || (ttywidth > 132)) usage(wrnge); break; case 'e' : if (getinteger(&espace, &j, optarg)) usage(nan); if (optarg[j] != '\0') usage(gae); break; case 'o' : OUTfilename = optarg; outputtofile = TRUE; j = strlen(optarg); break; #if !defined(MSDOS) && !defined(VMS) case 'F' : pager = TRUE; path = optarg; j = strlen(optarg); break; #endif default : usage(bdopt); } if ((optch = optarg[j]) == '\0') break; j++; if ((strchr(OPTWARG, optch) != NULL) && (optarg[j]='\0')) { if (--Argc <= 0) usage(noarg); optarg = *++Argv; j = 0; } } } /* setoption */ /*----------------------------------------------------------------------------*/ void getargs() { char *str, *envp; bool DVIfound; /* if a dvi filename found */ if (Argc <= 1) usage(ign); pageswitchon = FALSE; /* show all pages */ sequenceon = FALSE; /* selected pages are TeX-numbered */ outputtofile = FALSE; /* write to stdout */ #if !defined(MSDOS) && !defined(VMS) pager = WANTPAGER; /* want paging, compile time option */ #endif noffd = FALSE; /* print formfeed between pages */ scascii = DEFSCAND; /* scandinavian, compile time option */ ttywidth = 80; /* default terminal width */ espace = 0; /* to fake ttywith calcs */ DVIfound = FALSE; #if !defined(MSDOS) && !defined(VMS) if ((path = getenv("PAGER")) == NULL) /* find default pathname of page */ path = DEFPAGER; /* program in case paging is wanted */ #endif if ((envp = getenv("DVI2TTY")) != NULL) { while (*envp == ' ') envp++; while (*envp) { /* environment var args */ if (strchr(OPTSET, optch = *envp++) != NULL) { /* * we always pass one option, and arrange for optarg ourselfves, * so setoption does not mesh up Argv */ if (strchr(OPTWARG, optch) != NULL) { while (*envp == ' ') envp++; if (*envp == '\0') usage(noarg); str = envp; /* str points to optarg */ while ((*envp != ' ') && (*envp != '\0')) *envp++; /* set envp just after optarg */ if (*envp != '\0') *envp++ = '\0'; /* end optarg string */ } else str = ""; setoption(str); } else usage(bdopt); while (*envp == ' ') envp++; } } while (--Argc > 0) { /* command line args */ str = *++Argv; if (*str != '-') { /* argument is not an option */ if (DVIfound) /* only one dvi file allowed */ usage(onef); getfname(str); DVIfound = TRUE; } else if (strchr(OPTSET, optch = *++str) != NULL) { str++; /* point to rest of argument if any */ if ((strchr(OPTWARG, optch) != NULL) && (*str == '\0')) { if (--Argc <= 0) usage(noarg); str = *++Argv; } setoption(str); } else usage(bdopt); } if (!DVIfound) usage(ign); } /* getargs */ /*---------------------------------------------------------------------------*/ void getpages(j, str) int j; char *str; { int i, c; int num; pageswitchon = TRUE; firstpage = (printlisttype *) malloc(sizeof(printlisttype)); firstpage->all = FALSE; firstpage->nxt = nil; firstpage->pag = 0; lastpage = firstpage; currentpage = firstpage; if (getinteger(&num, &j, str)) usage(nan); plcnxt((int) num); while (str[j]) { c = str[j]; if (c == ',' || c == ':') { j++; if (getinteger(&num, &j, str)) usage(nan); } else break; if (c == ',') plcnxt(num); else { if (currentpage->pag < 0) { if (num > 0) { currentpage->all = TRUE; plcnxt(num); } else if (num < currentpage->pag) for (i = currentpage->pag - 1; i >= num; i--) plcnxt(i); else usage(bdlst); } else { if (num < currentpage->pag) usage(bdlst); for (i = currentpage->pag + 1; i <= num; i++) plcnxt(i); } } } if ((str[j] != ' ') && (str[j] != '\0')) { /* was str[j] != NULL, which is a bogus comparison */ usage(gae); } currentpage = firstpage; } /* getpages */ void plcnxt(pagnr) /* place page-nr next in list */ int pagnr; { currentpage = lastpage; currentpage->pag = pagnr; lastpage = (printlisttype *) malloc(sizeof(printlisttype)); lastpage->all = FALSE; lastpage->nxt = nil; lastpage->pag = 0; currentpage->nxt = lastpage; } /* plcnxt */ /*----------------------------------------------------------------------------*/ void getfname(str) char *str; { int i; i = strlen(str); if (i == 0) usage(ign); strcpy(DVIfilename, str); if (!((i >= 5) && (str[i-1] == 'i') && (str[i-2] == 'v') && (str[i-3] == 'd') && (str[i-4] == '.'))) { strcat(DVIfilename, ".dvi"); } } /* getfname */ /*----------------------------------------------------------------------------*/ int getinteger(dest, j, str) int *dest; int *j; char *str; { int cum; int sgn; char ch; ch = str[*j]; if (ch == '-') { sgn = -1; ch = str[++(*j)]; } else sgn = 1; if ((ch >= '0') && (ch <= '9')) { cum = 0; while ((ch >= '0') && (ch <= '9')) { cum = cum*10 + ch - '0'; ch = str[++(*j)]; } *dest = sgn * cum; return 0; /* return ok */ } return 1; /* return error */ } /* getinteger */ /*----------------------------------------------------------------------------*/ void errorexit(errorcode) int errorcode; { fprintf(stderr, "%s: ", progname); switch (errorcode) { case illop : fprintf(stderr, "Illegal op-code found: %d\n", opcode); break; case stkof : fprintf(stderr, "Stack overflow\n"); break; case stkuf : fprintf(stderr, "Stack underflow\n"); break; case stkrq : fprintf(stderr, "Cannot create dvi stack\n"); break; case lnerq : fprintf(stderr, "Cannot allocate memory\n"); break; case badid : fprintf(stderr, "Id-byte is not correct: %d\n ", opcode); break; case bdsgn : fprintf(stderr, "Bad signature: %d (not 223)\n", (int) foo); break; case fwsgn : fprintf(stderr, "%d signature bytes (min. 4)\n", (int) foo); break; case nopre : fprintf(stderr, "Missing preamble\n"); break; case nobop : fprintf(stderr, "Missing beginning-of-page command\n"); break; case nopp : fprintf(stderr, "Missing post-post command\n"); break; case bdpre : fprintf(stderr, "Preamble occured inside a page\n"); break; case bdbop : fprintf(stderr, "BOP-command occured inside a page\n"); break; case bdpst : fprintf(stderr, "Postamble occured before end-of-page\n"); break; case bdpp : fprintf(stderr, "Postpost occured before post-command\n"); break; case nopst : fprintf(stderr, "Missing postamble\n"); break; case illch : fprintf(stderr, "Character code out of range, 0..127\n"); break; case filop : fprintf(stderr, "Cannot open dvifile\n"); break; case filcr : fprintf(stderr, "Cannot create outfile\n"); break; #if !defined(MSDOS) && !defined(VMS) case pipcr : fprintf(stderr, "Cannot create pipe to pager\n"); break; #endif default : fprintf(stderr, "Unkown error code\n"); break; }; if (outputtofile) #if defined(VMS) remove(OUTfilename); #else unlink(OUTfilename); #endif exit(errorcode); } /* errorexit */ /*----------------------------------------------------------------------------*/ void usage(uerr) int uerr; { if (uerr != ign) { fprintf(stderr,"%s: ", progname); switch (uerr) { case ign : fprintf(stderr, "%s", Copyright); break; case wrnge : fprintf(stderr, "width arg out of range:16-132"); break; case nan : fprintf(stderr, "numeric argument expected for option %c", optch); break; case gae : fprintf(stderr, "garbage in argument for option %c", optch); break; case bdlst : fprintf(stderr, "mal-formed list of pagenumbers"); break; case onef : fprintf(stderr, "only one infile argument allowed"); break; case noarg : fprintf(stderr, "option argument expected for option %c", optch); break; case bdopt : fprintf(stderr, "bad option %c", optch); break; case onepp : fprintf(stderr, "only one pagelist allowed"); break; default : fprintf(stderr, "unknown usage error"); break; } fprintf(stderr, "\n"); } fprintf(stderr, "Usage: %s [ options ] dvifile[.dvi]\n", progname); fprintf(stderr, "Options are:\n"); fprintf(stderr, " -ofile Write output to file, else write to stdout.\n"); fprintf(stderr, " -plist Print pages whos TeX-page-number are in list.\n"); fprintf(stderr, " -Plist Print pages whos sequential number are in list.\n"); fprintf(stderr, " -wn Print the lines with width n characters, default 80.\n"); #if !defined(MSDOS) && !defined(VMS) fprintf(stderr, " -f Try to pipe to a pager if output is a tty"); if (WANTPAGER) fprintf(stderr, " (default).\n"); else fprintf(stderr, ".\n"); fprintf(stderr, " -q Don't try to pipe to a pager"); if (WANTPAGER) fprintf(stderr, ".\n"); else fprintf(stderr, " (default).\n"); fprintf(stderr, " -Fprog Pipe output to pager prog.\n"); #endif fprintf(stderr, " -l Write ''^L'' instead of formfeed between pages.\n"); fprintf(stderr, " -u National Swedish/Finnish characters printed as aaoAAO"); if (DEFSCAND) fprintf(stderr, ".\n"); else fprintf(stderr, " (default).\n"); fprintf(stderr, " -s National Swedish/Finnish characters printed as }{|][\\"); if (DEFSCAND) fprintf(stderr, " (default).\n"); else fprintf(stderr, ".\n"); exit(uerr); } /* usage */