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- #ifndef lintÌ*) ø&¨ p,Sid = "$Id: doc2rnh.c,v 1.7 1998/11/20 12:16:15 lhecking Exp $";
- #endif
-
- /* GNUPLOT - doc2rnh.c */
-
- /*[
- * Copyright 1986 - 1993, 1998 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.
- ]*/
-
- /*
- * doc2rnh.c -- program to convert Gnuplot .DOC format to
- * Digital Standard Runoff for VMS HELP files
- * (gnuplot.doc, including the terminal documentation
- * is no longer formated for VMS HELP by default)
- *
- * 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.
- *
- * Adapted from doc2ms.c (the unix 'runoff' text-processor)
- * by Lucas Hart 3/97
- *
- * right margin is adjusted two spaces for each level to compensate
- * for the indentation by VMS HELP
- *
- * the page width can be adjusted by changing the value of DSR_RM
- * usage: $ MCR []doc2rnh gnuplot.doc gnuplot.rnh
- * $ RUNOFF gnuplot.rnh
- *
- *
- */
-
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
-
- #include "ansichek.h"
- #include "stdfn.h"
- #include "doc2x.h"
-
- extern boolean single_top_level;
-
- #define LINE_SKIP 3
- #define DSR_RM 70
-
- void init __PROTO((FILE *));
- void convert __PROTO((FILE *, FILE *));
- void process_line __PROTO((char *, FILE *));
- void section __PROTO((char *, FILE *));
- void putrnh __PROTO((char *, FILE *));
- void putrnh_ __PROTO((char *, FILE *));
- void finish __PROTO((FILE *));
-
- static boolean intable = FALSE;
- static boolean rnh_table = FALSE;
- static boolean initial_entry = FALSE;
-
- int main(argc, argv)
- int argc;
- char **argv;
- {
- FILE *infile;
- FILE *outfile;
- infile = stdin;
- outfile = stdout;
-
- single_top_level = TRUE;
-
- 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_SUCCESS);
- }
- }
- 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);
- exit(EXIT_SUCCESS);
- }
-
-
- void init(b)
- FILE *b;
- {
- /* */
- (void) fputs(".no paging\n\
- .no flags all\n\
- .left margin 1\n\
- .right margin 70\n\
- .no justify\n", b);
- }
-
-
- void convert(a, b)
- FILE *a, *b;
- {
- static char line[MAX_LINE_LEN+1];
-
- while (get_line(line, sizeof(line), a)) {
- process_line(line, b);
- }
- }
-
- void process_line(line, b)
- char *line;
- FILE *b;
- {
- switch (line[0]) { /* control character */
- case '?':{ /* interactive help entry */
- break; /* ignore */
- }
- case '@':{ /* start/end table */
- if (rnh_table) {
- (void) fputs(".end literal\n", b);
- rnh_table = FALSE;
- intable = FALSE;
- } else {
- /* (void) fputs(".literal\n",b); */
- intable = TRUE;
- rnh_table = FALSE;
- initial_entry = TRUE;
- }
- /* ignore rest of line */
- break;
- }
- case '^':{ /* html table entry */
- break; /* ignore */
- }
- case '#':{ /* latex table entry */
- break; /* ignore */
- }
- case '%':{ /* troff table entry */
- break; /* ignore */
- }
- #if 0
- /* 'C' is taken care of by termdoc.c */
- case 'C':{ /* new Comment designator */
- break; /* ignore */
- }
- #endif
- case '\n': /* empty text line */
- case ' ':{ /* normal text line */
-
- /* most tables are simple; no flags means no protected characters
- * other than period (command indicator) in first column
- *
- * However, for ease of maintainence, two tables have sublevels
- * and descriptions, corresponding to the printed table entries,
- * encapsulated by the table markers. Therefore we need to
- * do some more work.
- *
- * Doc2hlp just ignores the table headings and treats
- * lower levels irrespectively, but we need to break
- * the level designators out of the table format.
- *
- * The first entry in a table will have either
- * - a level number in the first column => remainder of text in
- * table is help text
- * - spaces in the first two columns => rest of text is literal
- * to be placed in table format
- *
- */
-
- /* use the "cleartext" table or other text in tables */
-
- /* if (intable) { /* its already literal */
- if (rnh_table) { /* its a literal */
- putrnh(line + 1, b);
- break;
- }
- switch (line[1]) {
- case ' ':{
- if ((intable) && (initial_entry)) {
- rnh_table = TRUE;
- initial_entry = FALSE;
- fputs(".literal\n", b);
- putrnh(line + 1, b);
- break;
- }
- /* verbatim mode */
- fputs(".literal\n", b);
- putrnh(line + 1, b);
- fputs(".end literal\n", b);
- break;
- }
-
- /*
- * "." in first column is the DSR command character;
- * therefore, include the preceeding " "
- */
- case '.':{
- putrnh(line, b);
- break;
- }
- default:{
- if (line[0] == '\n')
- fputs(".skip\n", b); /* totally blank line */
- else
- putrnh(line + 1, b);
- break;
- }
- break;
- }
- break;
- }
- default:{
- if (isdigit((int) line[0])) { /* start of section */
-
- /* some HELP text is surrounded by table flags */
- /* doc2rnh will ignore the flags */
-
- if (intable) {
- if (initial_entry) {
- initial_entry = FALSE;
- rnh_table = FALSE;
- }
- }
- 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 */
- /* We want to retain section number, so its simpler than w/ TeX or roff */
-
- void section(line, b)
- char *line;
- FILE *b;
- {
- int sh_i;
- static int old = 1;
- /*
- (void) sscanf(line,"%d",&sh_i);
- *
- * check to make sure this works with terminals also
- */
- sh_i = atoi(line);
-
- if (sh_i > old) {
- do
- if (old != 1) /* this line added by rjl */
- (void) fputs(".rm-2\n", b);
- while (++old < sh_i);
- } else if (sh_i < old) {
- do
- if (sh_i != 1) /* this line added by rjl */
- (void) fputs(".rm+2\n", b);
- while (--old > sh_i);
- }
- /* added by dfk to capitalize section headers */
- /* Header name starts at [2] */
- /* omit for online documentation
- * if (islower(line[2]))
- * line[2] = toupper(line[2]);
- */
- old = sh_i;
-
- (void) fputs(".indent -1;\n", b);
- (void) putrnh_(line, b);
- (void) fputs(".br;\n", b);
- }
-
- /*
- * dummy function in case we need to convert some characters in
- * output string ala doc2tex and doc2ms
- */
-
- void putrnh(s, file)
- char *s;
- FILE *file;
- {
- (void) fputs(s, file);
- }
-
- /*
- * LBR$OUTPUT_HELP treats spaces and "/"s as list separators for topics,
- * but they are used in gnuplot.doc for the printed docs; convert to
- * "_" and "|" Modeled after section heading conversions in doc2tex
- * and doc2ms.
- *
- */
-
- void putrnh_(s, file)
- char *s;
- FILE *file;
- {
- int i, s_len, last_chr;
-
- s_len = strlen(s);
-
- for (i = s_len - 1; i > 2; i--) { /* any trailing spaces to drop? */
- if (s[i] != ' ') {
- last_chr = i;
- break;
- }
- }
-
- for (i = 0; i <= last_chr; i++) {
- if (i > 2) {
- switch (s[i]) {
- case ' ':
- (void) fputc('_', file);
- break;
- case '/':
- (void) fputc('|', file);
- break;
- default:
- (void) fputc(s[i], file);
- }
- } else {
- (void) fputc(s[i], file);
- }
- }
- }
-
- void finish(b) /* not used */
- FILE *b;
- {
- return;
- }
-