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-rwxr-xr-xsrc/preproc/html2/image.cc448
1 files changed, 0 insertions, 448 deletions
diff --git a/src/preproc/html2/image.cc b/src/preproc/html2/image.cc
deleted file mode 100755
index e05ee3dc5..000000000
--- a/src/preproc/html2/image.cc
+++ /dev/null
@@ -1,448 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 2000 Free Software Foundation, Inc.
- Written by Gaius Mulley (gaius@glam.ac.uk) but owes much
- of the code from James Clark (jjc@jclark.com).
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING. If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include <stdio.h>
-#include <signal.h>
-#include <ctype.h>
-#include <string.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <errno.h>
-#include "lib.h"
-#include "errarg.h"
-#include "error.h"
-#include "stringclass.h"
-#include "posix.h"
-
-#include <errno.h>
-#include <sys/types.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#ifdef _POSIX_VERSION
-#include <sys/wait.h>
-#define PID_T pid_t
-#else /* not _POSIX_VERSION */
-#define PID_T int
-#endif /* not _POSIX_VERSION */
-
-extern char *strerror();
-
-static char *file_contents;
-static int stdoutfd =1; // output file descriptor - normally 1 but might move
- // -1 means closed
-
-#define DEBUGGING
-
-/*
- * eventually it would be nice to have the choice of image devices.
- * This could be implemented once we have a -Tpng or -Tpdf device driver.
- * For now we use what is available.. postscript, ghostscript + png utils.
- */
-
-#define IMAGEDEVICE "-Tps"
-
-
-static int do_file(const char *filename);
-
-/*
- * sys_fatal - writes a fatal error message. Taken from src/roff/groff/pipeline.c
- */
-
-static void sys_fatal(const char *s)
-{
- fprintf(stderr, "%s: %s: %s", program_name, s, strerror(errno));
-}
-
- sprintf(buffer,
- "echo showpage | gs -q -dSAFER -sDEVICE=%s -r%d -g%dx%d -sOutputFile=- %s - 2> /dev/null > %s.png \n",
- image_device,
- image_res,
- (end_region_hpos-start_region_hpos)*image_res/font::res+IMAGE_BOARDER_PIXELS,
- (end_region_vpos-start_region_vpos)*image_res/font::res+IMAGE_BOARDER_PIXELS,
- ps_src, image_name);
-
-
-/*
- * the class and methods for retaining ascii text
- */
-
-struct char_block {
- enum { SIZE = 256 };
- char buffer[SIZE];
- int used;
- char_block *next;
-
- char_block();
-};
-
-char_block::char_block()
-: used(0), next(0)
-{
-}
-
-class char_buffer {
-public:
- char_buffer();
- ~char_buffer();
- int read_file(FILE *fp);
- int do_html(int argc, char *argv[]);
- int do_image(int argc, char *argv[]);
- int write_file(int is_html);
-private:
- char_block *head;
- char_block *tail;
-};
-
-char_buffer::char_buffer()
-: head(0), tail(0)
-{
-}
-
-char_buffer::~char_buffer()
-{
- while (head != 0) {
- char_block *temp = head;
- head = head->next;
- delete temp;
- }
-}
-
-int char_buffer::read_file (FILE *fp)
-{
- int i=0;
- unsigned int old_used;
- int n;
-
- while (! feof(fp)) {
- if (tail == 0) {
- tail = new char_block;
- head = tail;
- } else {
- if (tail->used == char_block::SIZE) {
- tail->next = new char_block;
- tail = tail->next;
- }
- }
- // at this point we have a tail which is ready for the the next SIZE bytes of the file
-
- n = fread(tail->buffer, sizeof(char), char_block::SIZE-tail->used, fp);
- if (n <= 0) {
- // error
- return( 0 );
- } else {
- tail->used += n*sizeof(char);
- }
- }
- return( 1 );
-}
-
-/*
- * writeNbytes - writes n bytes to stdout.
- */
-
-static void writeNbytes (char *s, int l)
-{
- int n=0;
- int r;
-
- while (n<l) {
- r = write(stdoutfd, s, l-n);
- if (r<0) {
- sys_fatal("write");
- }
- n += r;
- s += r;
- }
-}
-
-/*
- * writeString - writes a string to stdout.
- */
-
-static void writeString (char *s)
-{
- writeNbytes(s, strlen(s));
-}
-
-/*
- * write_file - writes the buffer to stdout (troff).
- * It prepends the number register set to 1 if stdout is
- * connected to troff -Thtml and 0 if connected to troff -Tps
- */
-
-int char_buffer::write_file (int is_html)
-{
- char_block *t=head;
- int r;
-
- fprintf(stderr, "output to pipeline\n");
- if (is_html) {
- writeString(".nr htmlflip 1\n");
- } else {
- writeString(".nr htmlflip 0\n");
- fprintf(stderr, ".nr htmlflip 0\n");
- }
- if (t != 0) {
- do {
- writeNbytes(t->buffer, t->used);
- fprintf(stderr, "hunk..\n");
- t = t->next;
- } while ((t != head) && (t != 0));
- }
- if (close(stdoutfd) < 0)
- sys_fatal("close");
-
- // now we grab fd=1 so that the next pipe cannot use fd=1
- if (stdoutfd == 1) {
- if (dup(2) != stdoutfd) {
- sys_fatal("dup failed to use fd=1");
- }
- }
-
- return( 1 );
-}
-
-/*
- * replaceFd - replace a file descriptor, was, with, willbe.
- */
-
-static void replaceFd (int was, int willbe)
-{
- int dupres;
-
- if (was != willbe) {
- if (close(was)<0) {
- sys_fatal("close");
- }
- dupres = dup(willbe);
- if (dupres != was) {
- sys_fatal("dup");
- fprintf(stderr, "trying to replace fd=%d with %d dup used %d\n", was, willbe, dupres);
- if (willbe == 1) {
- fprintf(stderr, "likely that stdout should be opened before %d\n", was);
- }
- exit(1);
- }
- if (close(willbe) < 0) {
- sys_fatal("close");
- }
- }
-}
-
-/*
- * waitForChild - waits for child, pid, to exit.
- */
-
-static void waitForChild (PID_T pid)
-{
- PID_T waitpd;
- int status;
-
- waitpd = wait(&status);
- if (waitpd != pid)
- sys_fatal("wait");
-}
-
-/*
- * do_html - sets the troff number htmlflip and
- * writes out the buffer to troff -Thtml
- */
-
-int char_buffer::do_html(int argc, char *argv[])
-{
- int pdes[2];
- PID_T pid;
-
- if (pipe(pdes) < 0)
- sys_fatal("pipe");
-
- argv++; // skip pre-grohtml argv[0]
- pid = fork();
- if (pid < 0)
- sys_fatal("fork");
-
- if (pid == 0) {
- // child
- replaceFd(0, pdes[0]);
- // close end we are not using
- if (close(pdes[1])<0)
- sys_fatal("close");
-
- execvp(argv[0], argv);
- error("couldn't exec %1: %2", argv[0], strerror(errno), (char *)0);
- fflush(stderr); /* just in case error() doesn't */
- exit(1);
- } else {
- // parent
-
- replaceFd(1, pdes[1]);
- // close end we are not using
- if (close(pdes[0])<0)
- sys_fatal("close");
-
- write_file(1);
- waitForChild(pid);
- }
- return( 0 );
-}
-
-/*
- * alterToDeviceImage - manipulates the argv to include IMAGEDEVICE rather than -Thtml2
- */
-
-static void alterToDeviceImage (int argc, char *argv[])
-{
- int i=0;
-
- while (i < argc) {
- if (strcmp(argv[i], "-Thtml2") == 0) {
- argv[i] = IMAGEDEVICE;
- }
- i++;
- }
- argv[1] = "groff"; /* rather than troff */
-}
-
-/*
- * do_image - sets the troff number htmlflip and
- * writes out the buffer to troff -Tps
- */
-
-int char_buffer::do_image(int argc, char *argv[])
-{
- PID_T pid;
- int pdes[2];
-
- if (pipe(pdes) < 0)
- sys_fatal("pipe");
-
- alterToDeviceImage(argc, argv);
- argv++; // skip pre-grohtml argv[0]
-
- pid = fork();
- if (pid == 0) {
- // child
-
-#if defined(DEBUGGING)
- int psFd = creat("/tmp/prehtml-ps", S_IWUSR|S_IRUSR);
- int regionFd = creat("/tmp/prehtml-region", S_IWUSR|S_IRUSR);
-#else
- int psFd = mkstemp(xtmptemplate("-ps-"));
- int regionFd = mkstemp(xtmptemplate("-regions-"));
-#endif
-
- fprintf(stderr, "about to exec %s\n", argv[0]);
- replaceFd(1, psFd);
- replaceFd(0, pdes[0]);
- replaceFd(2, regionFd);
-
- // close end we are not using
- if (close(pdes[1])<0)
- sys_fatal("close");
-
- execvp(argv[0], argv);
- error("couldn't exec %1: %2", argv[0], strerror(errno), (char *)0);
- fflush(stderr); /* just in case error() doesn't */
- exit(1);
- } else {
- // parent
-
- replaceFd(1, pdes[1]);
- write_file(0);
- waitForChild(pid);
- }
- return( 0 );
-}
-
-static char_buffer inputFile;
-
-
-/*
- * usage - emit usage arguments and exit.
- */
-
-void usage()
-{
- fprintf(stderr, "usage: %s troffname [ troff flags ] [ files ]\n", program_name);
- exit(1);
-}
-
-int main(int argc, char **argv)
-{
- program_name = argv[0];
- int i; // skip over troff name
- int found=0;
- int ok=1;
-
- for (i = 2; i < argc; i++) {
- if (argv[i][0] == '-') {
- if (argv[i][1] == 'v') {
- extern const char *Version_string;
- fprintf(stderr, "GNU pre-grohtml version %s\n", Version_string);
- fflush(stderr);
- }
- } else {
- ok = do_file(argv[i]);
- if (! ok) {
- return( 0 );
- }
- found = 1;
- }
- }
-
- if (! found) {
- do_file("-");
- }
- ok = inputFile.do_html(argc, argv);
- if (ok == 0) {
- ok = inputFile.do_image(argc, argv);
- if (ok == 0) {
- // generateImages();
- }
- }
- return ok;
-}
-
-static int do_file(const char *filename)
-{
- FILE *fp;
-
- current_filename = filename;
- if (strcmp(filename, "-") == 0) {
- fp = stdin;
- } else {
- fp = fopen(filename, "r");
- if (fp == 0) {
- error("can't open `%1': %2", filename, strerror(errno));
- return 0;
- }
- }
-
- if (inputFile.read_file(fp)) {
- }
-
- if (fp != stdin)
- fclose(fp);
- current_filename = 0;
- return 1;
-}
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