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#ifndef lint
static char *RCSid() { return RCSid("$Id: doc2ms.c,v 1.19 2007/10/24 00:47:51 sfeam Exp $"); }
#endif
/* GNUPLOT - doc2ms.c */
/*[
* Copyright 1986 - 1993, 1998, 2004 Thomas Williams, Colin Kelley
*
* Permission to use, copy, and distribute this software and its
* documentation for any purpose with or without fee is hereby granted,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
*
* Permission to modify the software is granted, but not the right to
* distribute the complete modified source code. Modifications are to
* be distributed as patches to the released version. Permission to
* distribute binaries produced by compiling modified sources is granted,
* provided you
* 1. distribute the corresponding source modifications from the
* released version in the form of a patch file along with the binaries,
* 2. add special version identification to distinguish your version
* in addition to the base release version number,
* 3. provide your name and address as the primary contact for the
* support of your modified version, and
* 4. retain our contact information in regard to use of the base
* software.
* Permission to distribute the released version of the source code along
* with corresponding source modifications in the form of a patch file is
* granted with same provisions 2 through 4 for binary distributions.
*
* This software is provided "as is" without express or implied warranty
* to the extent permitted by applicable law.
]*/
/*
* doc2ms.c -- program to convert Gnuplot .DOC format to *roff -ms document
* From hlp2ms by Thomas Williams
*
* Modified by Russell Lang, 2nd October 1989
* to make vms help level 1 and 2 create the same ms section level.
*
* Modified to become doc2ms by David Kotz (David.Kotz@Dartmouth.edu) 12/89
* Added table and backquote support.
*
* usage: doc2ms [file.doc [file.ms]]
*
* where file.doc is a VMS .DOC file, and file.ms will be a [nt]roff
* document suitable for printing with nroff -ms or troff -ms
*
* typical usage for GNUPLOT:
*
* doc2ms gnuplot.doc | tbl | eqn | troff -ms
*
* or
*
* doc2ms gnuplot.doc | groff -ms -et >gnuplot.ps
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "syscfg.h"
#include "stdfn.h"
#include "doc2x.h"
#define LINE_SKIP 3
void init __PROTO((FILE *));
void convert __PROTO((FILE *, FILE *));
void process_line __PROTO((char *, FILE *));
void section __PROTO((char *, FILE *));
void putms __PROTO((char *, FILE *));
void putms_verb __PROTO((char *, FILE *));
void finish __PROTO((FILE *));
static TBOOLEAN intable = FALSE;
int
main (int argc, char **argv)
{
FILE *infile;
FILE *outfile;
infile = stdin;
outfile = stdout;
if (argc > 3) {
fprintf(stderr, "Usage: %s [infile [outfile]]\n", argv[0]);
exit(EXIT_FAILURE);
}
if (argc >= 2) {
if ((infile = fopen(argv[1], "r")) == (FILE *) NULL) {
fprintf(stderr, "%s: Can't open %s for reading\n",
argv[0], argv[1]);
exit(EXIT_FAILURE);
}
}
if (argc == 3) {
if ((outfile = fopen(argv[2], "w")) == (FILE *) NULL) {
fprintf(stderr, "%s: Can't open %s for writing\n",
argv[0], argv[2]);
exit(EXIT_FAILURE);
}
}
init(outfile);
convert(infile, outfile);
finish(outfile);
return EXIT_SUCCESS;
}
void
init(FILE *b)
{
/* in nroff, increase line length by 8 and don't adjust lines */
(void) fputs(".if n \\{.nr LL +8m\n.na \\}\n\
.nr PO +0.3i\n\
.so titlepag.ms\n\
.pn 1\n\
.bp\n\
.ta 1.5i 3.0i 4.5i 6.0i 7.5i\n\
\\&\n.sp 3\n.PP\n", b);
/* following line commented out by rjl
(void) fputs(".so intro\n",b);
*/
}
void
convert( FILE *a, FILE *b)
{
static char line[MAX_LINE_LEN+1];
while (get_line(line, sizeof(line), a)) {
process_line(line, b);
}
}
void
process_line( char *line, FILE *b)
{
switch (line[0]) { /* control character */
case '?':{ /* interactive help entry */
break; /* ignore */
}
case '@':{ /* start/end table */
if (intable) {
(void) fputs(".TE\n.KE\n", b);
(void) fputs(".EQ\ndelim off\n.EN\n\n", b);
intable = FALSE;
} else {
(void) fputs("\n.EQ\ndelim $$\n.EN\n", b);
(void) fputs(".KS\n.TS\ncenter box tab (@) ;\n", b);
/* moved to gnuplot.doc by RCC
(void) fputs("c c l .\n", b);
*/
intable = TRUE;
}
/* ignore rest of line */
break;
}
case '^':{ /* html table entry */
break; /* ignore */
}
case '=': /* latex index entry */
case 'F': /* latex embedded figure */
case '#':{ /* latex table entry */
break; /* ignore */
}
case '%':{ /* troff table entry */
if (intable)
(void) fputs(line + 1, b); /* copy directly */
else
fprintf(stderr, "error: %% line found outside of table\n");
break;
}
case '\n': /* empty text line */
case ' ':{ /* normal text line */
if (intable)
break; /* ignore while in table */
switch (line[1]) {
case ' ':{
/* verbatim mode */
fputs(".br\n", b);
putms_verb(line + 1, b);
fputs(".br\n", b);
break;
}
case '\'':{
fputs("\\&", b);
putms(line + 1, b);
break;
}
case '.':{ /* hide leading . from ms */
fputs("\\&", b);
putms(line + 1, b);
break;
}
default:{
if (line[0] == '\n')
putms(line, b); /* handle totally blank line */
else
putms(line + 1, b);
break;
}
break;
}
break;
}
default:{
if (isdigit((int)line[0])) { /* start of section */
if (!intable) /* ignore while in table */
section(line, b);
} else
fprintf(stderr, "unknown control code '%c' in column 1\n",
line[0]);
break;
}
}
}
/* process a line with a digit control char */
/* starts a new [sub]section */
void
section( char *line, FILE *b)
{
static char string[MAX_LINE_LEN+1];
int sh_i;
static int old = 1;
(void) sscanf(line, "%d %[^\n]s", &sh_i, string);
(void) fprintf(b, ".sp %d\n", (sh_i == 1) ? LINE_SKIP : LINE_SKIP - 1);
if (sh_i > old) {
do
if (old != 1) /* this line added by rjl */
(void) fputs(".RS\n.IP\n", b);
while (++old < sh_i);
} else if (sh_i < old) {
do
if (sh_i != 1) /* this line added by rjl */
(void) fputs(".RE\n.br\n", b);
while (--old > sh_i);
}
/* added by dfk to capitalize section headers */
if (islower((int)string[0]))
string[0] = toupper(string[0]);
/* next 3 lines added by rjl */
if (sh_i != 1)
(void) fprintf(b, ".NH %d\n%s\n.sp 1\n.LP\n", sh_i - 1, string);
else
(void) fprintf(b, ".NH %d\n%s\n.sp 1\n.LP\n", sh_i, string);
old = sh_i;
(void) fputs(".XS\n", b);
(void) fputs(string, b);
(void) fputs("\n.XE\n", b);
}
void
putms( char *s, FILE *file)
{
static TBOOLEAN inquote = FALSE;
while (*s != NUL) {
switch (*s) {
case '`':{ /* backquote -> boldface */
if (inquote) {
fputs("\\fR", file);
inquote = FALSE;
} else {
fputs("\\fB", file);
inquote = TRUE;
}
break;
}
case '\\':{ /* backslash */
fputs("\\\\", file);
break;
}
case '\'':{ /* single quote */
fputs("\\&'", file);
break;
}
default:{
fputc(*s, file);
break;
}
}
s++;
}
}
/*
* convert a verbatim line to troff input style, i.e. convert "\" to "\\"
* (added by Alexander Lehmann 01/30/93)
*/
void
putms_verb( char *s, FILE *file)
{
while (*s != '\0') {
if (*s == '\\') {
fputc('\\', file);
}
fputc(*s, file);
s++;
}
}
/* spit out table of contents */
void
finish(FILE *b)
{
fputs("\
.pn 1\n\
.ds RH %\n\
.af % i\n\
.bp\n.PX\n", b);
}
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