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doc2ms.c
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C/C++ Source or Header
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1993-11-03
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6KB
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279 lines
#ifndef lint
static char *RCSid = "$Id: doc2ms.c%v 3.38.2.70 1993/02/08 02:19:29 woo Exp woo $";
#endif
/*
* 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
*/
#include <stdio.h>
#include <ctype.h>
#define MAX_NAME_LEN 256
#define MAX_LINE_LEN 256
#define LINE_SKIP 3
#define TRUE 1
#define FALSE 0
typedef int boolean;
static boolean intable = FALSE;
main(argc,argv)
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(1);
}
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(1);
}
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]);
}
init(outfile);
convert(infile,outfile);
finish(outfile);
exit(0);
}
init(b)
FILE *b;
{
/* in nroff, increase line length by 8 and don't adjust lines */
(void) fputs(".if n \\{.nr LL +8m\n.na \\}\n",b);
(void) fputs(".nr PO +0.3i\n",b);
(void) fputs(".so titlepag.ms\n",b);
(void) fputs(".pn 1\n",b);
(void) fputs(".bp\n",b);
(void) fputs(".ta 1.5i 3.0i 4.5i 6.0i 7.5i\n",b);
(void) fputs("\\&\n.sp 3\n.PP\n",b);
/* following line commented out by rjl
(void) fputs(".so intro\n",b);
*/
}
convert(a,b)
FILE *a,*b;
{
static char line[MAX_LINE_LEN];
while (fgets(line,MAX_LINE_LEN,a)) {
process_line(line, b);
}
}
process_line(line, b)
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);
(void) fputs("c c l .\n", b);
intable = TRUE;
}
/* ignore rest of line */
break;
}
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;
}
default: {
if (line[0] == '\n')
putms(line,b); /* handle totally blank line */
else
putms(line+1,b);
break;
}
break;
}
break;
}
default: {
if (isdigit(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 */
section(line, b)
char *line;
FILE *b;
{
static char string[MAX_LINE_LEN];
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(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);
}
putms(s, file)
char *s;
FILE *file;
{
static boolean inquote = FALSE;
while (*s != '\0') {
switch (*s) {
case '`': { /* backquote -> boldface */
if (inquote) {
fputs("\\fR", file);
inquote = FALSE;
} else {
fputs("\\fB", file);
inquote = TRUE;
}
break;
}
case '\\': { /* backslash */
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)
*/
putms_verb(s, file)
char *s;
FILE *file;
{
static boolean inquote = FALSE;
while (*s != '\0') {
if (*s == '\\') {
fputc('\\', file);
}
fputc(*s, file);
s++;
}
}
finish(b) /* spit out table of contents */
FILE *b;
{
(void) fputs(".pn 1\n",b);
(void) fputs(".ds RH %\n",b);
(void) fputs(".af % i\n",b);
(void) fputs(".bp\n.PX\n",b);
}