/*
* $Id: doc2html.c,v 1.10 1998/04/14 00:16:58 drd Exp $
*
*/
/* GNUPLOT - doc2html.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.
]*/
/*
* doc2html.c -- program to convert Gnuplot .DOC format to
* World Wide Web (WWW) HyperText Markup Language (HTML) format
*
* Created by Russell Lang from doc2ipf by Roger Fearick from
* doc2rtf by M Castro from doc2gih by Thomas Williams.
* 1994-11-03
*
* usage: doc2html gnuplot.doc gnuplot.htm
*
*/
/* note that tables must begin in at least the second column to */
/* be formatted correctly and tabs are forbidden */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "ansichek.h"
#include "stdfn.h"
#define MAX_LINE_LEN 1023
#include "doc2x.h"
#include "xref.h"
static boolean debug = FALSE;
char title[256];
void convert __PROTO((FILE *, FILE *));
void process_line __PROTO((char *, FILE *));
/* From xref.c */
extern struct LIST *lookup __PROTO((char *));
int main(argc, argv)
int argc;
char **argv;
{
FILE *infile;
FILE *outfile;
if (argv[argc - 1][0] == '-' && argv[argc - 1][1] == 'd') {
debug = TRUE;
argc--;
}
if ((argc > 3) || (argc == 1)) {
fprintf(stderr, "Usage: %s infile outfile\n", argv[0]);
exit(EXIT_FAILURE);
}
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);
}
safe_strncpy(title, argv[2], sizeof(title));
} else {
outfile = stdout;
safe_strncpy(title, argv[1], sizeof(title));
}
strtok(title, "."); /* remove type */
parse(infile);
convert(infile, outfile);
exit(EXIT_SUCCESS);
}
void convert(a, b)
FILE *a, *b;
{
static char line[MAX_LINE_LEN+1];
/* generate html header */
fprintf(b, "<HTML>\n\
<HEAD>\n\
<TITLE>%s</TITLE>\n\
</HEAD>\n\
<BODY>\n\
<H1>%s</H1><P>\n", title, title);
/* process each line of the file */
while (get_line(line, sizeof(line), a)) {
process_line(line, b);
}
/* close final page and generate trailer */
fprintf(b, "\n<P><HR>Created automatically by doc2html\n\
</BODY>\n\
</HTML>\n");
list_free();
}
void process_line(line, b)
char *line;
FILE *b;
{
static int line_count = 0;
static char line2[MAX_LINE_LEN+1];
static int last_line;
char hyplink1[64];
int i, j;
static int startpage = 1;
char topic[MAX_LINE_LEN+1];
int k, l;
struct LIST *klist;
static int tabl = 0;
static int para = 0;
static int inquote = FALSE;
static int inref = FALSE;
line_count++;
i = j = 0;
while (line[i] != NUL) {
switch (line[i]) {
case '<':
strcpy(&line2[j], "<");
j += strlen("<.") - 1;
break;
case '>':
strcpy(&line2[j], ">");
j += strlen(">.") - 1;
break;
case '&':
strcpy(&line2[j], "&");
j += strlen("&") - 1;
break;
case '\r':
case '\n':
break;
case '`': /* backquotes mean boldface or link */
if ((!inref) && (!inquote)) {
k = i + 1; /* index into current string */
l = 0; /* index into topic string */
while ((line[k] != '`') && (line[k] != NUL))
topic[l++] = line[k++];
topic[l] = NUL;
klist = lookup(topic);
if (klist && ((k = klist->line) != last_line)) {
sprintf(hyplink1, "<A HREF=\042#%d\042>", k);
strcpy(line2 + j, hyplink1);
j += strlen(hyplink1) - 1;
inref = k;
} else {
if (debug && k != last_line)
fprintf(stderr, "Can't make link for \042%s\042 on line %d\n", topic, line_count);
line2[j++] = '<';
line2[j++] = 'B';
line2[j] = '>';
inquote = TRUE;
}
} else {
if (inquote && inref)
fprintf(stderr, "Warning: Reference Quote conflict line %d\n", line_count);
if (inquote) {
line2[j++] = '<';
line2[j++] = '/';
line2[j++] = 'B';
line2[j] = '>';
inquote = FALSE;
}
if (inref) {
/* must be inref */
line2[j++] = '<';
line2[j++] = '/';
line2[j++] = 'A';
line2[j] = '>';
inref = 0;
}
}
break;
default:
line2[j] = line[i];
}
i++;
j++;
line2[j] = NUL;
}
i = 1;
switch (line[0]) { /* control character */
case '?':{ /* interactive help entry */
#ifdef FIXLATER
if (intable)
intablebut = TRUE;
fprintf(b, "\n:i1. %s", &(line[1])); /* index entry */
#endif
break;
}
case '@':{ /* start/end table */
break; /* ignore */
}
case '#':{ /* latex table entry */
break; /* ignore */
}
case '^':{ /* external link escape */
(void) fputs(line + 1, b); /* copy directly */
break; /* ignore */
}
case '%':{ /* troff table entry */
break; /* ignore */
}
case '\n': /* empty text line */
if (tabl)
fprintf(b, "</PRE>\n"); /* rjl */
para = 0;
tabl = 0;
fprintf(b, "<P>");
break;
case ' ':{ /* normal text line */
if ((line2[1] == NUL) || (line2[1] == '\n')) {
fprintf(b, "<P>");
para = 0;
tabl = 0;
}
if (line2[1] == ' ') {
if (!tabl) {
fprintf(b, "<PRE>\n");
}
fprintf(b, "%s\n", &line2[1]);
tabl = 1;
para = 0;
} else {
if (tabl) {
fprintf(b, "</PRE>\n<P>"); /* rjl */
}
tabl = 0;
if (!para)
para = 1; /* not in para so start one */
fprintf(b, "%s \n", &line2[1]);
}
break;
}
default:{
if (isdigit((int)line[0])) { /* start of section */
if (tabl)
fprintf(b, "</PRE>\n"); /* rjl */
if (startpage) { /* use the new level 0 */
refs(0, b, "<P>\n", "<P>\n", "<A HREF=\042#%d\042>%s</A><BR>\n");
} else {
refs(last_line, b, "<P>\n", "<P>\n", "<A HREF=\042#%d\042>%s</A><BR>\n");
}
para = 0; /* not in a paragraph */
tabl = 0;
last_line = line_count;
startpage = 0;
if (debug)
fprintf(stderr, "%d: %s\n", line_count, &line2[1]);
klist = lookup(&line2[1]);
if (klist)
k = klist->line;
else
k = -1;
/* output unique ID and section title */
fprintf(b, "<HR><A NAME=\042%d\042>\n<H%c>", line_count, line[0] == '1' ? line[0] : line[0] - 1);
fprintf(b, &(line2[1])); /* title */
fprintf(b, "</H%c>\n<P>", line[0] == '1' ? line[0] : line[0] - 1);
} else
fprintf(stderr, "unknown control code '%c' in column 1, line %d\n",
line[0], line_count);
break;
}
}
}
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