hardcopy.c   [plain text]


/* vi:set ts=8 sts=4 sw=4:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 * See README.txt for an overview of the Vim source code.
 */

/*
 * hardcopy.c: printing to paper
 */

#include "vim.h"
#include "version.h"

#if defined(FEAT_PRINTER) || defined(PROTO)
/*
 * To implement printing on a platform, the following functions must be
 * defined:
 *
 * int mch_print_init(prt_settings_T *psettings, char_u *jobname, int forceit)
 * Called once.  Code should display printer dialogue (if appropriate) and
 * determine printer font and margin settings.  Reset has_color if the printer
 * doesn't support colors at all.
 * Returns FAIL to abort.
 *
 * int mch_print_begin(prt_settings_T *settings)
 * Called to start the print job.
 * Return FALSE to abort.
 *
 * int mch_print_begin_page(char_u *msg)
 * Called at the start of each page.
 * "msg" indicates the progress of the print job, can be NULL.
 * Return FALSE to abort.
 *
 * int mch_print_end_page()
 * Called at the end of each page.
 * Return FALSE to abort.
 *
 * int mch_print_blank_page()
 * Called to generate a blank page for collated, duplex, multiple copy
 * document.  Return FALSE to abort.
 *
 * void mch_print_end(prt_settings_T *psettings)
 * Called at normal end of print job.
 *
 * void mch_print_cleanup()
 * Called if print job ends normally or is abandoned. Free any memory, close
 * devices and handles.  Also called when mch_print_begin() fails, but not
 * when mch_print_init() fails.
 *
 * void mch_print_set_font(int Bold, int Italic, int Underline);
 * Called whenever the font style changes.
 *
 * void mch_print_set_bg(long_u bgcol);
 * Called to set the background color for the following text. Parameter is an
 * RGB value.
 *
 * void mch_print_set_fg(long_u fgcol);
 * Called to set the foreground color for the following text. Parameter is an
 * RGB value.
 *
 * mch_print_start_line(int margin, int page_line)
 * Sets the current position at the start of line "page_line".
 * If margin is TRUE start in the left margin (for header and line number).
 *
 * int mch_print_text_out(char_u *p, int len);
 * Output one character of text p[len] at the current position.
 * Return TRUE if there is no room for another character in the same line.
 *
 * Note that the generic code has no idea of margins. The machine code should
 * simply make the page look smaller!  The header and the line numbers are
 * printed in the margin.
 */

#ifdef FEAT_SYN_HL
static const long_u  cterm_color_8[8] =
{
    (long_u)0x000000L, (long_u)0xff0000L, (long_u)0x00ff00L, (long_u)0xffff00L,
    (long_u)0x0000ffL, (long_u)0xff00ffL, (long_u)0x00ffffL, (long_u)0xffffffL
};

static const long_u  cterm_color_16[16] =
{
    (long_u)0x000000L, (long_u)0x0000c0L, (long_u)0x008000L, (long_u)0x004080L,
    (long_u)0xc00000L, (long_u)0xc000c0L, (long_u)0x808000L, (long_u)0xc0c0c0L,
    (long_u)0x808080L, (long_u)0x6060ffL, (long_u)0x00ff00L, (long_u)0x00ffffL,
    (long_u)0xff8080L, (long_u)0xff40ffL, (long_u)0xffff00L, (long_u)0xffffffL
};

static int		current_syn_id;
#endif

#define PRCOLOR_BLACK	(long_u)0
#define PRCOLOR_WHITE	(long_u)0xFFFFFFL

static int	curr_italic;
static int	curr_bold;
static int	curr_underline;
static long_u	curr_bg;
static long_u	curr_fg;
static int	page_count;

#if defined(FEAT_MBYTE) && defined(FEAT_POSTSCRIPT)
# define OPT_MBFONT_USECOURIER  0
# define OPT_MBFONT_ASCII       1
# define OPT_MBFONT_REGULAR     2
# define OPT_MBFONT_BOLD	3
# define OPT_MBFONT_OBLIQUE     4
# define OPT_MBFONT_BOLDOBLIQUE 5
# define OPT_MBFONT_NUM_OPTIONS 6

static option_table_T mbfont_opts[OPT_MBFONT_NUM_OPTIONS] =
{
    {"c",	FALSE, 0, NULL, 0, FALSE},
    {"a",	FALSE, 0, NULL, 0, FALSE},
    {"r",	FALSE, 0, NULL, 0, FALSE},
    {"b",	FALSE, 0, NULL, 0, FALSE},
    {"i",	FALSE, 0, NULL, 0, FALSE},
    {"o",	FALSE, 0, NULL, 0, FALSE},
};
#endif

/*
 * These values determine the print position on a page.
 */
typedef struct
{
    int		lead_spaces;	    /* remaining spaces for a TAB */
    int		print_pos;	    /* virtual column for computing TABs */
    colnr_T	column;		    /* byte column */
    linenr_T	file_line;	    /* line nr in the buffer */
    long_u	bytes_printed;	    /* bytes printed so far */
    int		ff;		    /* seen form feed character */
} prt_pos_T;

static char_u *parse_list_options __ARGS((char_u *option_str, option_table_T *table, int table_size));

#ifdef FEAT_SYN_HL
static long_u darken_rgb __ARGS((long_u rgb));
static long_u prt_get_term_color __ARGS((int colorindex));
#endif
static void prt_set_fg __ARGS((long_u fg));
static void prt_set_bg __ARGS((long_u bg));
static void prt_set_font __ARGS((int bold, int italic, int underline));
static void prt_line_number __ARGS((prt_settings_T *psettings, int page_line, linenr_T lnum));
static void prt_header __ARGS((prt_settings_T *psettings, int pagenum, linenr_T lnum));
static void prt_message __ARGS((char_u *s));
static colnr_T hardcopy_line __ARGS((prt_settings_T *psettings, int page_line, prt_pos_T *ppos));
#ifdef FEAT_SYN_HL
static void prt_get_attr __ARGS((int hl_id, prt_text_attr_T* pattr, int modec));
#endif

/*
 * Parse 'printoptions' and set the flags in "printer_opts".
 * Returns an error message or NULL;
 */
    char_u *
parse_printoptions()
{
    return parse_list_options(p_popt, printer_opts, OPT_PRINT_NUM_OPTIONS);
}

#if (defined(FEAT_MBYTE) && defined(FEAT_POSTSCRIPT)) || defined(PROTO)
/*
 * Parse 'printoptions' and set the flags in "printer_opts".
 * Returns an error message or NULL;
 */
    char_u *
parse_printmbfont()
{
    return parse_list_options(p_pmfn, mbfont_opts, OPT_MBFONT_NUM_OPTIONS);
}
#endif

/*
 * Parse a list of options in the form
 * option:value,option:value,option:value
 *
 * "value" can start with a number which is parsed out, e.g.  margin:12mm
 *
 * Returns an error message for an illegal option, NULL otherwise.
 * Only used for the printer at the moment...
 */
    static char_u *
parse_list_options(option_str, table, table_size)
    char_u		*option_str;
    option_table_T	*table;
    int			table_size;
{
    char_u	*stringp;
    char_u	*colonp;
    char_u	*commap;
    char_u	*p;
    int		idx = 0;		/* init for GCC */
    int		len;

    for (idx = 0; idx < table_size; ++idx)
	table[idx].present = FALSE;

    /*
     * Repeat for all comma separated parts.
     */
    stringp = option_str;
    while (*stringp)
    {
	colonp = vim_strchr(stringp, ':');
	if (colonp == NULL)
	    return (char_u *)N_("E550: Missing colon");
	commap = vim_strchr(stringp, ',');
	if (commap == NULL)
	    commap = option_str + STRLEN(option_str);

	len = (int)(colonp - stringp);

	for (idx = 0; idx < table_size; ++idx)
	    if (STRNICMP(stringp, table[idx].name, len) == 0)
		break;

	if (idx == table_size)
	    return (char_u *)N_("E551: Illegal component");

	p = colonp + 1;
	table[idx].present = TRUE;

	if (table[idx].hasnum)
	{
	    if (!VIM_ISDIGIT(*p))
		return (char_u *)N_("E552: digit expected");

	    table[idx].number = getdigits(&p); /*advances p*/
	}

	table[idx].string = p;
	table[idx].strlen = (int)(commap - p);

	stringp = commap;
	if (*stringp == ',')
	    ++stringp;
    }

    return NULL;
}


#ifdef FEAT_SYN_HL
/*
 * If using a dark background, the colors will probably be too bright to show
 * up well on white paper, so reduce their brightness.
 */
    static long_u
darken_rgb(rgb)
    long_u	rgb;
{
    return	((rgb >> 17) << 16)
	    +	(((rgb & 0xff00) >> 9) << 8)
	    +	((rgb & 0xff) >> 1);
}

    static long_u
prt_get_term_color(colorindex)
    int	    colorindex;
{
    /* TODO: Should check for xterm with 88 or 256 colors. */
    if (t_colors > 8)
	return cterm_color_16[colorindex % 16];
    return cterm_color_8[colorindex % 8];
}

    static void
prt_get_attr(hl_id, pattr, modec)
    int			hl_id;
    prt_text_attr_T	*pattr;
    int			modec;
{
    int     colorindex;
    long_u  fg_color;
    long_u  bg_color;
    char    *color;

    pattr->bold = (highlight_has_attr(hl_id, HL_BOLD, modec) != NULL);
    pattr->italic = (highlight_has_attr(hl_id, HL_ITALIC, modec) != NULL);
    pattr->underline = (highlight_has_attr(hl_id, HL_UNDERLINE, modec) != NULL);
    pattr->undercurl = (highlight_has_attr(hl_id, HL_UNDERCURL, modec) != NULL);

# ifdef FEAT_GUI
    if (gui.in_use)
    {
	bg_color = highlight_gui_color_rgb(hl_id, FALSE);
	if (bg_color == PRCOLOR_BLACK)
	    bg_color = PRCOLOR_WHITE;

	fg_color = highlight_gui_color_rgb(hl_id, TRUE);
    }
    else
# endif
    {
	bg_color = PRCOLOR_WHITE;

	color = (char *)highlight_color(hl_id, (char_u *)"fg", modec);
	if (color == NULL)
	    colorindex = 0;
	else
	    colorindex = atoi(color);

	if (colorindex >= 0 && colorindex < t_colors)
	    fg_color = prt_get_term_color(colorindex);
	else
	    fg_color = PRCOLOR_BLACK;
    }

    if (fg_color == PRCOLOR_WHITE)
	fg_color = PRCOLOR_BLACK;
    else if (*p_bg == 'd')
	fg_color = darken_rgb(fg_color);

    pattr->fg_color = fg_color;
    pattr->bg_color = bg_color;
}
#endif /* FEAT_SYN_HL */

    static void
prt_set_fg(fg)
    long_u fg;
{
    if (fg != curr_fg)
    {
	curr_fg = fg;
	mch_print_set_fg(fg);
    }
}

    static void
prt_set_bg(bg)
    long_u bg;
{
    if (bg != curr_bg)
    {
	curr_bg = bg;
	mch_print_set_bg(bg);
    }
}

    static void
prt_set_font(bold, italic, underline)
    int		bold;
    int		italic;
    int		underline;
{
    if (curr_bold != bold
	    || curr_italic != italic
	    || curr_underline != underline)
    {
	curr_underline = underline;
	curr_italic = italic;
	curr_bold = bold;
	mch_print_set_font(bold, italic, underline);
    }
}

/*
 * Print the line number in the left margin.
 */
    static void
prt_line_number(psettings, page_line, lnum)
    prt_settings_T *psettings;
    int		page_line;
    linenr_T	lnum;
{
    int		i;
    char_u	tbuf[20];

    prt_set_fg(psettings->number.fg_color);
    prt_set_bg(psettings->number.bg_color);
    prt_set_font(psettings->number.bold, psettings->number.italic, psettings->number.underline);
    mch_print_start_line(TRUE, page_line);

    /* Leave two spaces between the number and the text; depends on
     * PRINT_NUMBER_WIDTH. */
    sprintf((char *)tbuf, "%6ld", (long)lnum);
    for (i = 0; i < 6; i++)
	(void)mch_print_text_out(&tbuf[i], 1);

#ifdef FEAT_SYN_HL
    if (psettings->do_syntax)
	/* Set colors for next character. */
	current_syn_id = -1;
    else
#endif
    {
	/* Set colors and font back to normal. */
	prt_set_fg(PRCOLOR_BLACK);
	prt_set_bg(PRCOLOR_WHITE);
	prt_set_font(FALSE, FALSE, FALSE);
    }
}

/*
 * Get the currently effective header height.
 */
    int
prt_header_height()
{
    if (printer_opts[OPT_PRINT_HEADERHEIGHT].present)
	return printer_opts[OPT_PRINT_HEADERHEIGHT].number;
    return 2;
}

/*
 * Return TRUE if using a line number for printing.
 */
    int
prt_use_number()
{
    return (printer_opts[OPT_PRINT_NUMBER].present
	    && TOLOWER_ASC(printer_opts[OPT_PRINT_NUMBER].string[0]) == 'y');
}

/*
 * Return the unit used in a margin item in 'printoptions'.
 * Returns PRT_UNIT_NONE if not recognized.
 */
    int
prt_get_unit(idx)
    int		idx;
{
    int		u = PRT_UNIT_NONE;
    int		i;
    static char *(units[4]) = PRT_UNIT_NAMES;

    if (printer_opts[idx].present)
	for (i = 0; i < 4; ++i)
	    if (STRNICMP(printer_opts[idx].string, units[i], 2) == 0)
	    {
		u = i;
		break;
	    }
    return u;
}

/*
 * Print the page header.
 */
/*ARGSUSED*/
    static void
prt_header(psettings, pagenum, lnum)
    prt_settings_T  *psettings;
    int		pagenum;
    linenr_T	lnum;
{
    int		width = psettings->chars_per_line;
    int		page_line;
    char_u	*tbuf;
    char_u	*p;
#ifdef FEAT_MBYTE
    int		l;
#endif

    /* Also use the space for the line number. */
    if (prt_use_number())
	width += PRINT_NUMBER_WIDTH;

    tbuf = alloc(width + IOSIZE);
    if (tbuf == NULL)
	return;

#ifdef FEAT_STL_OPT
    if (*p_header != NUL)
    {
	linenr_T	tmp_lnum, tmp_topline, tmp_botline;
	int		use_sandbox = FALSE;

	/*
	 * Need to (temporarily) set current line number and first/last line
	 * number on the 'window'.  Since we don't know how long the page is,
	 * set the first and current line number to the top line, and guess
	 * that the page length is 64.
	 */
	tmp_lnum = curwin->w_cursor.lnum;
	tmp_topline = curwin->w_topline;
	tmp_botline = curwin->w_botline;
	curwin->w_cursor.lnum = lnum;
	curwin->w_topline = lnum;
	curwin->w_botline = lnum + 63;
	printer_page_num = pagenum;

# ifdef FEAT_EVAL
	use_sandbox = was_set_insecurely((char_u *)"printheader", 0);
# endif
	build_stl_str_hl(curwin, tbuf, (size_t)(width + IOSIZE),
						  p_header, use_sandbox,
						  ' ', width, NULL, NULL);

	/* Reset line numbers */
	curwin->w_cursor.lnum = tmp_lnum;
	curwin->w_topline = tmp_topline;
	curwin->w_botline = tmp_botline;
    }
    else
#endif
	sprintf((char *)tbuf, _("Page %d"), pagenum);

    prt_set_fg(PRCOLOR_BLACK);
    prt_set_bg(PRCOLOR_WHITE);
    prt_set_font(TRUE, FALSE, FALSE);

    /* Use a negative line number to indicate printing in the top margin. */
    page_line = 0 - prt_header_height();
    mch_print_start_line(TRUE, page_line);
    for (p = tbuf; *p != NUL; )
    {
	if (mch_print_text_out(p,
#ifdef FEAT_MBYTE
		(l = (*mb_ptr2len)(p))
#else
		1
#endif
		    ))
	{
	    ++page_line;
	    if (page_line >= 0) /* out of room in header */
		break;
	    mch_print_start_line(TRUE, page_line);
	}
#ifdef FEAT_MBYTE
	p += l;
#else
	p++;
#endif
    }

    vim_free(tbuf);

#ifdef FEAT_SYN_HL
    if (psettings->do_syntax)
	/* Set colors for next character. */
	current_syn_id = -1;
    else
#endif
    {
	/* Set colors and font back to normal. */
	prt_set_fg(PRCOLOR_BLACK);
	prt_set_bg(PRCOLOR_WHITE);
	prt_set_font(FALSE, FALSE, FALSE);
    }
}

/*
 * Display a print status message.
 */
    static void
prt_message(s)
    char_u	*s;
{
    screen_fill((int)Rows - 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0);
    screen_puts(s, (int)Rows - 1, 0, hl_attr(HLF_R));
    out_flush();
}

    void
ex_hardcopy(eap)
    exarg_T	*eap;
{
    linenr_T		lnum;
    int			collated_copies, uncollated_copies;
    prt_settings_T	settings;
    long_u		bytes_to_print = 0;
    int			page_line;
    int			jobsplit;

    memset(&settings, 0, sizeof(prt_settings_T));
    settings.has_color = TRUE;

# ifdef FEAT_POSTSCRIPT
    if (*eap->arg == '>')
    {
	char_u	*errormsg = NULL;

	/* Expand things like "%.ps". */
	if (expand_filename(eap, eap->cmdlinep, &errormsg) == FAIL)
	{
	    if (errormsg != NULL)
		EMSG(errormsg);
	    return;
	}
	settings.outfile = skipwhite(eap->arg + 1);
    }
    else if (*eap->arg != NUL)
	settings.arguments = eap->arg;
# endif

    /*
     * Initialise for printing.  Ask the user for settings, unless forceit is
     * set.
     * The mch_print_init() code should set up margins if applicable. (It may
     * not be a real printer - for example the engine might generate HTML or
     * PS.)
     */
    if (mch_print_init(&settings,
			curbuf->b_fname == NULL
			    ? (char_u *)buf_spname(curbuf)
			    : curbuf->b_sfname == NULL
				? curbuf->b_fname
				: curbuf->b_sfname,
			eap->forceit) == FAIL)
	return;

#ifdef FEAT_SYN_HL
# ifdef  FEAT_GUI
    if (gui.in_use)
	settings.modec = 'g';
    else
# endif
	if (t_colors > 1)
	    settings.modec = 'c';
	else
	    settings.modec = 't';

    if (!syntax_present(curbuf))
	settings.do_syntax = FALSE;
    else if (printer_opts[OPT_PRINT_SYNTAX].present
	    && TOLOWER_ASC(printer_opts[OPT_PRINT_SYNTAX].string[0]) != 'a')
	settings.do_syntax =
	       (TOLOWER_ASC(printer_opts[OPT_PRINT_SYNTAX].string[0]) == 'y');
    else
	settings.do_syntax = settings.has_color;
#endif

    /* Set up printing attributes for line numbers */
    settings.number.fg_color = PRCOLOR_BLACK;
    settings.number.bg_color = PRCOLOR_WHITE;
    settings.number.bold = FALSE;
    settings.number.italic = TRUE;
    settings.number.underline = FALSE;
#ifdef FEAT_SYN_HL
    /*
     * Syntax highlighting of line numbers.
     */
    if (prt_use_number() && settings.do_syntax)
    {
	int		id;

	id = syn_name2id((char_u *)"LineNr");
	if (id > 0)
	    id = syn_get_final_id(id);

	prt_get_attr(id, &settings.number, settings.modec);
    }
#endif

    /*
     * Estimate the total lines to be printed
     */
    for (lnum = eap->line1; lnum <= eap->line2; lnum++)
	bytes_to_print += (long_u)STRLEN(skipwhite(ml_get(lnum)));
    if (bytes_to_print == 0)
    {
	MSG(_("No text to be printed"));
	goto print_fail_no_begin;
    }

    /* Set colors and font to normal. */
    curr_bg = (long_u)0xffffffffL;
    curr_fg = (long_u)0xffffffffL;
    curr_italic = MAYBE;
    curr_bold = MAYBE;
    curr_underline = MAYBE;

    prt_set_fg(PRCOLOR_BLACK);
    prt_set_bg(PRCOLOR_WHITE);
    prt_set_font(FALSE, FALSE, FALSE);
#ifdef FEAT_SYN_HL
    current_syn_id = -1;
#endif

    jobsplit = (printer_opts[OPT_PRINT_JOBSPLIT].present
	   && TOLOWER_ASC(printer_opts[OPT_PRINT_JOBSPLIT].string[0]) == 'y');

    if (!mch_print_begin(&settings))
	goto print_fail_no_begin;

    /*
     * Loop over collated copies: 1 2 3, 1 2 3, ...
     */
    page_count = 0;
    for (collated_copies = 0;
	    collated_copies < settings.n_collated_copies;
	    collated_copies++)
    {
	prt_pos_T	prtpos;		/* current print position */
	prt_pos_T	page_prtpos;	/* print position at page start */
	int		side;

	memset(&page_prtpos, 0, sizeof(prt_pos_T));
	page_prtpos.file_line = eap->line1;
	prtpos = page_prtpos;

	if (jobsplit && collated_copies > 0)
	{
	    /* Splitting jobs: Stop a previous job and start a new one. */
	    mch_print_end(&settings);
	    if (!mch_print_begin(&settings))
		goto print_fail_no_begin;
	}

	/*
	 * Loop over all pages in the print job: 1 2 3 ...
	 */
	for (page_count = 0; prtpos.file_line <= eap->line2; ++page_count)
	{
	    /*
	     * Loop over uncollated copies: 1 1 1, 2 2 2, 3 3 3, ...
	     * For duplex: 12 12 12 34 34 34, ...
	     */
	    for (uncollated_copies = 0;
		    uncollated_copies < settings.n_uncollated_copies;
		    uncollated_copies++)
	    {
		/* Set the print position to the start of this page. */
		prtpos = page_prtpos;

		/*
		 * Do front and rear side of a page.
		 */
		for (side = 0; side <= settings.duplex; ++side)
		{
		    /*
		     * Print one page.
		     */

		    /* Check for interrupt character every page. */
		    ui_breakcheck();
		    if (got_int || settings.user_abort)
			goto print_fail;

		    sprintf((char *)IObuff, _("Printing page %d (%d%%)"),
			    page_count + 1 + side,
			    prtpos.bytes_printed > 1000000
				? (int)(prtpos.bytes_printed /
						       (bytes_to_print / 100))
				: (int)((prtpos.bytes_printed * 100)
							   / bytes_to_print));
		    if (!mch_print_begin_page(IObuff))
			goto print_fail;

		    if (settings.n_collated_copies > 1)
			sprintf((char *)IObuff + STRLEN(IObuff),
				_(" Copy %d of %d"),
				collated_copies + 1,
				settings.n_collated_copies);
		    prt_message(IObuff);

		    /*
		     * Output header if required
		     */
		    if (prt_header_height() > 0)
			prt_header(&settings, page_count + 1 + side,
							prtpos.file_line);

		    for (page_line = 0; page_line < settings.lines_per_page;
								  ++page_line)
		    {
			prtpos.column = hardcopy_line(&settings,
							   page_line, &prtpos);
			if (prtpos.column == 0)
			{
			    /* finished a file line */
			    prtpos.bytes_printed +=
				  STRLEN(skipwhite(ml_get(prtpos.file_line)));
			    if (++prtpos.file_line > eap->line2)
				break; /* reached the end */
			}
			else if (prtpos.ff)
			{
			    /* Line had a formfeed in it - start new page but
			     * stay on the current line */
			    break;
			}
		    }

		    if (!mch_print_end_page())
			goto print_fail;
		    if (prtpos.file_line > eap->line2)
			break; /* reached the end */
		}

		/*
		 * Extra blank page for duplexing with odd number of pages and
		 * more copies to come.
		 */
		if (prtpos.file_line > eap->line2 && settings.duplex
								 && side == 0
		    && uncollated_copies + 1 < settings.n_uncollated_copies)
		{
		    if (!mch_print_blank_page())
			goto print_fail;
		}
	    }
	    if (settings.duplex && prtpos.file_line <= eap->line2)
		++page_count;

	    /* Remember the position where the next page starts. */
	    page_prtpos = prtpos;
	}

	vim_snprintf((char *)IObuff, IOSIZE, _("Printed: %s"),
							    settings.jobname);
	prt_message(IObuff);
    }

print_fail:
    if (got_int || settings.user_abort)
    {
	sprintf((char *)IObuff, "%s", _("Printing aborted"));
	prt_message(IObuff);
    }
    mch_print_end(&settings);

print_fail_no_begin:
    mch_print_cleanup();
}

/*
 * Print one page line.
 * Return the next column to print, or zero if the line is finished.
 */
    static colnr_T
hardcopy_line(psettings, page_line, ppos)
    prt_settings_T	*psettings;
    int			page_line;
    prt_pos_T		*ppos;
{
    colnr_T	col;
    char_u	*line;
    int		need_break = FALSE;
    int		outputlen;
    int		tab_spaces;
    long_u	print_pos;
#ifdef FEAT_SYN_HL
    prt_text_attr_T attr;
    int		id;
#endif

    if (ppos->column == 0 || ppos->ff)
    {
	print_pos = 0;
	tab_spaces = 0;
	if (!ppos->ff && prt_use_number())
	    prt_line_number(psettings, page_line, ppos->file_line);
	ppos->ff = FALSE;
    }
    else
    {
	/* left over from wrap halfway a tab */
	print_pos = ppos->print_pos;
	tab_spaces = ppos->lead_spaces;
    }

    mch_print_start_line(0, page_line);
    line = ml_get(ppos->file_line);

    /*
     * Loop over the columns until the end of the file line or right margin.
     */
    for (col = ppos->column; line[col] != NUL && !need_break; col += outputlen)
    {
	outputlen = 1;
#ifdef FEAT_MBYTE
	if (has_mbyte && (outputlen = (*mb_ptr2len)(line + col)) < 1)
	    outputlen = 1;
#endif
#ifdef FEAT_SYN_HL
	/*
	 * syntax highlighting stuff.
	 */
	if (psettings->do_syntax)
	{
	    id = syn_get_id(curwin, ppos->file_line, col, 1, NULL);
	    if (id > 0)
		id = syn_get_final_id(id);
	    else
		id = 0;
	    /* Get the line again, a multi-line regexp may invalidate it. */
	    line = ml_get(ppos->file_line);

	    if (id != current_syn_id)
	    {
		current_syn_id = id;
		prt_get_attr(id, &attr, psettings->modec);
		prt_set_font(attr.bold, attr.italic, attr.underline);
		prt_set_fg(attr.fg_color);
		prt_set_bg(attr.bg_color);
	    }
	}
#endif

	/*
	 * Appropriately expand any tabs to spaces.
	 */
	if (line[col] == TAB || tab_spaces != 0)
	{
	    if (tab_spaces == 0)
		tab_spaces = (int)(curbuf->b_p_ts - (print_pos % curbuf->b_p_ts));

	    while (tab_spaces > 0)
	    {
		need_break = mch_print_text_out((char_u *)" ", 1);
		print_pos++;
		tab_spaces--;
		if (need_break)
		    break;
	    }
	    /* Keep the TAB if we didn't finish it. */
	    if (need_break && tab_spaces > 0)
		break;
	}
	else if (line[col] == FF
		&& printer_opts[OPT_PRINT_FORMFEED].present
		&& TOLOWER_ASC(printer_opts[OPT_PRINT_FORMFEED].string[0])
								       == 'y')
	{
	    ppos->ff = TRUE;
	    need_break = 1;
	}
	else
	{
	    need_break = mch_print_text_out(line + col, outputlen);
#ifdef FEAT_MBYTE
	    if (has_mbyte)
		print_pos += (*mb_ptr2cells)(line + col);
	    else
#endif
		print_pos++;
	}
    }

    ppos->lead_spaces = tab_spaces;
    ppos->print_pos = (int)print_pos;

    /*
     * Start next line of file if we clip lines, or have reached end of the
     * line, unless we are doing a formfeed.
     */
    if (!ppos->ff
	    && (line[col] == NUL
		|| (printer_opts[OPT_PRINT_WRAP].present
		    && TOLOWER_ASC(printer_opts[OPT_PRINT_WRAP].string[0])
								     == 'n')))
	return 0;
    return col;
}

# if defined(FEAT_POSTSCRIPT) || defined(PROTO)

/*
 * PS printer stuff.
 *
 * Sources of information to help maintain the PS printing code:
 *
 * 1. PostScript Language Reference, 3rd Edition,
 *      Addison-Wesley, 1999, ISBN 0-201-37922-8
 * 2. PostScript Language Program Design,
 *      Addison-Wesley, 1988, ISBN 0-201-14396-8
 * 3. PostScript Tutorial and Cookbook,
 *      Addison Wesley, 1985, ISBN 0-201-10179-3
 * 4. PostScript Language Document Structuring Conventions Specification,
 *    version 3.0,
 *      Adobe Technote 5001, 25th September 1992
 * 5. PostScript Printer Description File Format Specification, Version 4.3,
 *      Adobe technote 5003, 9th February 1996
 * 6. Adobe Font Metrics File Format Specification, Version 4.1,
 *      Adobe Technote 5007, 7th October 1998
 * 7. Adobe CMap and CIDFont Files Specification, Version 1.0,
 *      Adobe Technote 5014, 8th October 1996
 * 8. Adobe CJKV Character Collections and CMaps for CID-Keyed Fonts,
 *      Adoboe Technote 5094, 8th September, 2001
 * 9. CJKV Information Processing, 2nd Edition,
 *      O'Reilly, 2002, ISBN 1-56592-224-7
 *
 * Some of these documents can be found in PDF form on Adobe's web site -
 * http://www.adobe.com
 */

#define NUM_ELEMENTS(arr)   (sizeof(arr)/sizeof((arr)[0]))

#define PRT_PS_DEFAULT_DPI	    (72)    /* Default user space resolution */
#define PRT_PS_DEFAULT_FONTSIZE     (10)
#define PRT_PS_DEFAULT_BUFFER_SIZE  (80)

struct prt_mediasize_S
{
    char	*name;
    float	width;		/* width and height in points for portrait */
    float	height;
};

#define PRT_MEDIASIZE_LEN  (sizeof(prt_mediasize) / sizeof(struct prt_mediasize_S))

static struct prt_mediasize_S prt_mediasize[] =
{
    {"A4",		595.0,  842.0},
    {"letter",		612.0,  792.0},
    {"10x14",		720.0, 1008.0},
    {"A3",		842.0, 1191.0},
    {"A5",		420.0,  595.0},
    {"B4",		729.0, 1032.0},
    {"B5",		516.0,  729.0},
    {"executive",	522.0,  756.0},
    {"folio",		595.0,  935.0},
    {"ledger",	       1224.0,  792.0},   /* Yes, it is wider than taller! */
    {"legal",		612.0, 1008.0},
    {"quarto",		610.0,  780.0},
    {"statement",	396.0,  612.0},
    {"tabloid",		792.0, 1224.0}
};

/* PS font names, must be in Roman, Bold, Italic, Bold-Italic order */
struct prt_ps_font_S
{
    int		wx;
    int		uline_offset;
    int		uline_width;
    int		bbox_min_y;
    int		bbox_max_y;
    char	*(ps_fontname[4]);
};

#define PRT_PS_FONT_ROMAN	(0)
#define PRT_PS_FONT_BOLD	(1)
#define PRT_PS_FONT_OBLIQUE	(2)
#define PRT_PS_FONT_BOLDOBLIQUE (3)

/* Standard font metrics for Courier family */
static struct prt_ps_font_S prt_ps_courier_font =
{
    600,
    -100, 50,
    -250, 805,
    {"Courier", "Courier-Bold", "Courier-Oblique", "Courier-BoldOblique"}
};

#ifdef FEAT_MBYTE
/* Generic font metrics for multi-byte fonts */
static struct prt_ps_font_S prt_ps_mb_font =
{
    1000,
    -100, 50,
    -250, 805,
    {NULL, NULL, NULL, NULL}
};
#endif

/* Pointer to current font set being used */
static struct prt_ps_font_S* prt_ps_font;

/* Structures to map user named encoding and mapping to PS equivalents for
 * building CID font name */
struct prt_ps_encoding_S
{
    char	*encoding;
    char	*cmap_encoding;
    int		needs_charset;
};

struct prt_ps_charset_S
{
    char	*charset;
    char	*cmap_charset;
    int		has_charset;
};

#ifdef FEAT_MBYTE

#define CS_JIS_C_1978   (0x01)
#define CS_JIS_X_1983   (0x02)
#define CS_JIS_X_1990   (0x04)
#define CS_NEC		(0x08)
#define CS_MSWINDOWS	(0x10)
#define CS_CP932	(0x20)
#define CS_KANJITALK6	(0x40)
#define CS_KANJITALK7   (0x80)

/* Japanese encodings and charsets */
static struct prt_ps_encoding_S j_encodings[] =
{
    {"iso-2022-jp", NULL,       (CS_JIS_C_1978|CS_JIS_X_1983|CS_JIS_X_1990|
								    CS_NEC)},
    {"euc-jp",	    "EUC",	(CS_JIS_C_1978|CS_JIS_X_1983|CS_JIS_X_1990)},
    {"sjis",	    "RKSJ",	(CS_JIS_C_1978|CS_JIS_X_1983|CS_MSWINDOWS|
						CS_KANJITALK6|CS_KANJITALK7)},
    {"cp932",       "RKSJ",     CS_JIS_X_1983},
    {"ucs-2",       "UCS2",     CS_JIS_X_1990},
    {"utf-8",       "UTF8" ,    CS_JIS_X_1990}
};
static struct prt_ps_charset_S j_charsets[] =
{
    {"JIS_C_1978",  "78",       CS_JIS_C_1978},
    {"JIS_X_1983",  NULL,       CS_JIS_X_1983},
    {"JIS_X_1990",  "Hojo",     CS_JIS_X_1990},
    {"NEC",	    "Ext",	CS_NEC},
    {"MSWINDOWS",   "90ms",     CS_MSWINDOWS},
    {"CP932",       "90ms",     CS_JIS_X_1983},
    {"KANJITALK6",  "83pv",     CS_KANJITALK6},
    {"KANJITALK7",  "90pv",     CS_KANJITALK7}
};

#define CS_GB_2312_80       (0x01)
#define CS_GBT_12345_90     (0x02)
#define CS_GBK2K	    (0x04)
#define CS_SC_MAC	    (0x08)
#define CS_GBT_90_MAC	    (0x10)
#define CS_GBK		    (0x20)
#define CS_SC_ISO10646      (0x40)

/* Simplified Chinese encodings and charsets */
static struct prt_ps_encoding_S sc_encodings[] =
{
    {"iso-2022",    NULL,       (CS_GB_2312_80|CS_GBT_12345_90)},
    {"gb18030",     NULL,       CS_GBK2K},
    {"euc-cn",      "EUC",      (CS_GB_2312_80|CS_GBT_12345_90|CS_SC_MAC|
								CS_GBT_90_MAC)},
    {"gbk",	    "EUC",	CS_GBK},
    {"ucs-2",       "UCS2",     CS_SC_ISO10646},
    {"utf-8",       "UTF8",     CS_SC_ISO10646}
};
static struct prt_ps_charset_S sc_charsets[] =
{
    {"GB_2312-80",  "GB",       CS_GB_2312_80},
    {"GBT_12345-90","GBT",      CS_GBT_12345_90},
    {"MAC",	    "GBpc",	CS_SC_MAC},
    {"GBT-90_MAC",  "GBTpc",	CS_GBT_90_MAC},
    {"GBK",	    "GBK",	CS_GBK},
    {"GB18030",     "GBK2K",    CS_GBK2K},
    {"ISO10646",    "UniGB",    CS_SC_ISO10646}
};

#define CS_CNS_PLANE_1      (0x01)
#define CS_CNS_PLANE_2      (0x02)
#define CS_CNS_PLANE_1_2    (0x04)
#define CS_B5		    (0x08)
#define CS_ETEN		    (0x10)
#define CS_HK_GCCS	    (0x20)
#define CS_HK_SCS	    (0x40)
#define CS_HK_SCS_ETEN	    (0x80)
#define CS_MTHKL	    (0x100)
#define CS_MTHKS	    (0x200)
#define CS_DLHKL	    (0x400)
#define CS_DLHKS	    (0x800)
#define CS_TC_ISO10646	    (0x1000)

/* Traditional Chinese encodings and charsets */
static struct prt_ps_encoding_S tc_encodings[] =
{
    {"iso-2022",    NULL,       (CS_CNS_PLANE_1|CS_CNS_PLANE_2)},
    {"euc-tw",      "EUC",      CS_CNS_PLANE_1_2},
    {"big5",	    "B5",	(CS_B5|CS_ETEN|CS_HK_GCCS|CS_HK_SCS|
				    CS_HK_SCS_ETEN|CS_MTHKL|CS_MTHKS|CS_DLHKL|
								    CS_DLHKS)},
    {"cp950",       "B5",       CS_B5},
    {"ucs-2",       "UCS2",     CS_TC_ISO10646},
    {"utf-8",       "UTF8",     CS_TC_ISO10646},
    {"utf-16",      "UTF16",    CS_TC_ISO10646},
    {"utf-32",      "UTF32",    CS_TC_ISO10646}
};
static struct prt_ps_charset_S tc_charsets[] =
{
    {"CNS_1992_1",  "CNS1",     CS_CNS_PLANE_1},
    {"CNS_1992_2",  "CNS2",     CS_CNS_PLANE_2},
    {"CNS_1993",    "CNS",      CS_CNS_PLANE_1_2},
    {"BIG5",	    NULL,	CS_B5},
    {"CP950",	    NULL,	CS_B5},
    {"ETEN",	    "ETen",	CS_ETEN},
    {"HK_GCCS",     "HKgccs",	CS_HK_GCCS},
    {"SCS",	    "HKscs",	CS_HK_SCS},
    {"SCS_ETEN",    "ETHK",     CS_HK_SCS_ETEN},
    {"MTHKL",       "HKm471",   CS_MTHKL},
    {"MTHKS",       "HKm314",   CS_MTHKS},
    {"DLHKL",       "HKdla",    CS_DLHKL},
    {"DLHKS",       "HKdlb",    CS_DLHKS},
    {"ISO10646",    "UniCNS",   CS_TC_ISO10646}
};

#define CS_KR_X_1992	    (0x01)
#define CS_KR_MAC	    (0x02)
#define CS_KR_X_1992_MS     (0x04)
#define CS_KR_ISO10646      (0x08)

/* Korean encodings and charsets */
static struct prt_ps_encoding_S k_encodings[] =
{
    {"iso-2022-kr", NULL,       CS_KR_X_1992},
    {"euc-kr",      "EUC",      (CS_KR_X_1992|CS_KR_MAC)},
    {"johab",       "Johab",    CS_KR_X_1992},
    {"cp1361",      "Johab",    CS_KR_X_1992},
    {"uhc",	    "UHC",	CS_KR_X_1992_MS},
    {"cp949",       "UHC",      CS_KR_X_1992_MS},
    {"ucs-2",       "UCS2",     CS_KR_ISO10646},
    {"utf-8",       "UTF8",     CS_KR_ISO10646}
};
static struct prt_ps_charset_S k_charsets[] =
{
    {"KS_X_1992",   "KSC",      CS_KR_X_1992},
    {"CP1361",      "KSC",      CS_KR_X_1992},
    {"MAC",	    "KSCpc",	CS_KR_MAC},
    {"MSWINDOWS",   "KSCms",    CS_KR_X_1992_MS},
    {"CP949",       "KSCms",    CS_KR_X_1992_MS},
    {"WANSUNG",     "KSCms",    CS_KR_X_1992_MS},
    {"ISO10646",    "UniKS",    CS_KR_ISO10646}
};

/* Collections of encodings and charsets for multi-byte printing */
struct prt_ps_mbfont_S
{
    int				num_encodings;
    struct prt_ps_encoding_S	*encodings;
    int				num_charsets;
    struct prt_ps_charset_S	*charsets;
    char			*ascii_enc;
    char			*defcs;
};

static struct prt_ps_mbfont_S prt_ps_mbfonts[] =
{
    {
	NUM_ELEMENTS(j_encodings),
	j_encodings,
	NUM_ELEMENTS(j_charsets),
	j_charsets,
	"jis_roman",
	"JIS_X_1983"
    },
    {
	NUM_ELEMENTS(sc_encodings),
	sc_encodings,
	NUM_ELEMENTS(sc_charsets),
	sc_charsets,
	"gb_roman",
	"GB_2312-80"
    },
    {
	NUM_ELEMENTS(tc_encodings),
	tc_encodings,
	NUM_ELEMENTS(tc_charsets),
	tc_charsets,
	"cns_roman",
	"BIG5"
    },
    {
	NUM_ELEMENTS(k_encodings),
	k_encodings,
	NUM_ELEMENTS(k_charsets),
	k_charsets,
	"ks_roman",
	"KS_X_1992"
    }
};
#endif /* FEAT_MBYTE */

struct prt_ps_resource_S
{
    char_u  name[64];
    char_u  filename[MAXPATHL + 1];
    int     type;
    char_u  title[256];
    char_u  version[256];
};

/* Types of PS resource file currently used */
#define PRT_RESOURCE_TYPE_PROCSET   (0)
#define PRT_RESOURCE_TYPE_ENCODING  (1)
#define PRT_RESOURCE_TYPE_CMAP      (2)

/* The PS prolog file version number has to match - if the prolog file is
 * updated, increment the number in the file and here.  Version checking was
 * added as of VIM 6.2.
 * The CID prolog file version number behaves as per PS prolog.
 * Table of VIM and prolog versions:
 *
 * VIM      Prolog  CIDProlog
 * 6.2      1.3
 * 7.0      1.4	    1.0
 */
#define PRT_PROLOG_VERSION  ((char_u *)"1.4")
#define PRT_CID_PROLOG_VERSION  ((char_u *)"1.0")

/* String versions of PS resource types - indexed by constants above so don't
 * re-order!
 */
static char *prt_resource_types[] =
{
    "procset",
    "encoding",
    "cmap"
};

/* Strings to look for in a PS resource file */
#define PRT_RESOURCE_HEADER	    "%!PS-Adobe-"
#define PRT_RESOURCE_RESOURCE	    "Resource-"
#define PRT_RESOURCE_PROCSET	    "ProcSet"
#define PRT_RESOURCE_ENCODING	    "Encoding"
#define PRT_RESOURCE_CMAP	    "CMap"


/* Data for table based DSC comment recognition, easy to extend if VIM needs to
 * read more comments. */
#define PRT_DSC_MISC_TYPE	    (-1)
#define PRT_DSC_TITLE_TYPE	    (1)
#define PRT_DSC_VERSION_TYPE	    (2)
#define PRT_DSC_ENDCOMMENTS_TYPE    (3)

#define PRT_DSC_TITLE		    "%%Title:"
#define PRT_DSC_VERSION		    "%%Version:"
#define PRT_DSC_ENDCOMMENTS	    "%%EndComments:"

struct prt_dsc_comment_S
{
    char	*string;
    int		len;
    int		type;
};

struct prt_dsc_line_S
{
    int		type;
    char_u	*string;
    int		len;
};


#define SIZEOF_CSTR(s)      (sizeof(s) - 1)
static struct prt_dsc_comment_S prt_dsc_table[] =
{
    {PRT_DSC_TITLE,       SIZEOF_CSTR(PRT_DSC_TITLE),     PRT_DSC_TITLE_TYPE},
    {PRT_DSC_VERSION,     SIZEOF_CSTR(PRT_DSC_VERSION),
							PRT_DSC_VERSION_TYPE},
    {PRT_DSC_ENDCOMMENTS, SIZEOF_CSTR(PRT_DSC_ENDCOMMENTS),
						     PRT_DSC_ENDCOMMENTS_TYPE}
};

static void prt_write_file_raw_len __ARGS((char_u *buffer, int bytes));
static void prt_write_file __ARGS((char_u *buffer));
static void prt_write_file_len __ARGS((char_u *buffer, int bytes));
static void prt_write_string __ARGS((char *s));
static void prt_write_int __ARGS((int i));
static void prt_write_boolean __ARGS((int b));
static void prt_def_font __ARGS((char *new_name, char *encoding, int height, char *font));
static void prt_real_bits __ARGS((double real, int precision, int *pinteger, int *pfraction));
static void prt_write_real __ARGS((double val, int prec));
static void prt_def_var __ARGS((char *name, double value, int prec));
static void prt_flush_buffer __ARGS((void));
static void prt_resource_name __ARGS((char_u *filename, void *cookie));
static int prt_find_resource __ARGS((char *name, struct prt_ps_resource_S *resource));
static int prt_open_resource __ARGS((struct prt_ps_resource_S *resource));
static int prt_check_resource __ARGS((struct prt_ps_resource_S *resource, char_u *version));
static void prt_dsc_start __ARGS((void));
static void prt_dsc_noarg __ARGS((char *comment));
static void prt_dsc_textline __ARGS((char *comment, char *text));
static void prt_dsc_text __ARGS((char *comment, char *text));
static void prt_dsc_ints __ARGS((char *comment, int count, int *ints));
static void prt_dsc_requirements __ARGS((int duplex, int tumble, int collate, int color, int num_copies));
static void prt_dsc_docmedia __ARGS((char *paper_name, double width, double height, double weight, char *colour, char *type));
static void prt_dsc_resources __ARGS((char *comment, char *type, char *strings));
static void prt_dsc_font_resource __ARGS((char *resource, struct prt_ps_font_S *ps_font));
static float to_device_units __ARGS((int idx, double physsize, int def_number));
static void prt_page_margins __ARGS((double width, double height, double *left, double *right, double *top, double *bottom));
static void prt_font_metrics __ARGS((int font_scale));
static int prt_get_cpl __ARGS((void));
static int prt_get_lpp __ARGS((void));
static int prt_add_resource __ARGS((struct prt_ps_resource_S *resource));
static int prt_resfile_next_line __ARGS((void));
static int prt_resfile_strncmp __ARGS((int offset, char *string, int len));
static int prt_resfile_skip_nonws __ARGS((int offset));
static int prt_resfile_skip_ws __ARGS((int offset));
static int prt_next_dsc __ARGS((struct prt_dsc_line_S *p_dsc_line));
#ifdef FEAT_MBYTE
static int prt_build_cid_fontname __ARGS((int font, char_u *name, int name_len));
static void prt_def_cidfont __ARGS((char *new_name, int height, char *cidfont));
static void prt_dup_cidfont __ARGS((char *original_name, char *new_name));
static int prt_match_encoding __ARGS((char *p_encoding, struct prt_ps_mbfont_S *p_cmap, struct prt_ps_encoding_S **pp_mbenc));
static int prt_match_charset __ARGS((char *p_charset, struct prt_ps_mbfont_S *p_cmap, struct prt_ps_charset_S **pp_mbchar));
#endif

/*
 * Variables for the output PostScript file.
 */
static FILE *prt_ps_fd;
static int prt_file_error;
static char_u *prt_ps_file_name = NULL;

/*
 * Various offsets and dimensions in default PostScript user space (points).
 * Used for text positioning calculations
 */
static float prt_page_width;
static float prt_page_height;
static float prt_left_margin;
static float prt_right_margin;
static float prt_top_margin;
static float prt_bottom_margin;
static float prt_line_height;
static float prt_first_line_height;
static float prt_char_width;
static float prt_number_width;
static float prt_bgcol_offset;
static float prt_pos_x_moveto = 0.0;
static float prt_pos_y_moveto = 0.0;

/*
 * Various control variables used to decide when and how to change the
 * PostScript graphics state.
 */
static int prt_need_moveto;
static int prt_do_moveto;
static int prt_need_font;
static int prt_font;
static int prt_need_underline;
static int prt_underline;
static int prt_do_underline;
static int prt_need_fgcol;
static int prt_fgcol;
static int prt_need_bgcol;
static int prt_do_bgcol;
static int prt_bgcol;
static int prt_new_bgcol;
static int prt_attribute_change;
static float prt_text_run;
static int prt_page_num;
static int prt_bufsiz;

/*
 * Variables controlling physical printing.
 */
static int prt_media;
static int prt_portrait;
static int prt_num_copies;
static int prt_duplex;
static int prt_tumble;
static int prt_collate;

/*
 * Buffers used when generating PostScript output
 */
static char_u prt_line_buffer[257];
static garray_T prt_ps_buffer;

# ifdef FEAT_MBYTE
static int prt_do_conv;
static vimconv_T prt_conv;

static int prt_out_mbyte;
static int prt_custom_cmap;
static char prt_cmap[80];
static int prt_use_courier;
static int prt_in_ascii;
static int prt_half_width;
static char *prt_ascii_encoding;
static char_u prt_hexchar[] = "0123456789abcdef";
# endif

    static void
prt_write_file_raw_len(buffer, bytes)
    char_u	*buffer;
    int		bytes;
{
    if (!prt_file_error
	    && fwrite(buffer, sizeof(char_u), bytes, prt_ps_fd)
							     != (size_t)bytes)
    {
	EMSG(_("E455: Error writing to PostScript output file"));
	prt_file_error = TRUE;
    }
}

    static void
prt_write_file(buffer)
    char_u	*buffer;
{
    prt_write_file_len(buffer, (int)STRLEN(buffer));
}

    static void
prt_write_file_len(buffer, bytes)
    char_u	*buffer;
    int		bytes;
{
#ifdef EBCDIC
    ebcdic2ascii(buffer, bytes);
#endif
    prt_write_file_raw_len(buffer, bytes);
}

/*
 * Write a string.
 */
    static void
prt_write_string(s)
    char	*s;
{
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer), "%s", s);
    prt_write_file(prt_line_buffer);
}

/*
 * Write an int and a space.
 */
    static void
prt_write_int(i)
    int		i;
{
    sprintf((char *)prt_line_buffer, "%d ", i);
    prt_write_file(prt_line_buffer);
}

/*
 * Write a boolean and a space.
 */
    static void
prt_write_boolean(b)
    int		b;
{
    sprintf((char *)prt_line_buffer, "%s ", (b ? "T" : "F"));
    prt_write_file(prt_line_buffer);
}

/*
 * Write PostScript to re-encode and define the font.
 */
    static void
prt_def_font(new_name, encoding, height, font)
    char	*new_name;
    char	*encoding;
    int		height;
    char	*font;
{
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
			  "/_%s /VIM-%s /%s ref\n", new_name, encoding, font);
    prt_write_file(prt_line_buffer);
#ifdef FEAT_MBYTE
    if (prt_out_mbyte)
	sprintf((char *)prt_line_buffer, "/%s %d %f /_%s sffs\n",
		       new_name, height, 500./prt_ps_courier_font.wx, new_name);
    else
#endif
	vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
			     "/%s %d /_%s ffs\n", new_name, height, new_name);
    prt_write_file(prt_line_buffer);
}

#ifdef FEAT_MBYTE
/*
 * Write a line to define the CID font.
 */
    static void
prt_def_cidfont(new_name, height, cidfont)
    char	*new_name;
    int		height;
    char	*cidfont;
{
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
	      "/_%s /%s[/%s] vim_composefont\n", new_name, prt_cmap, cidfont);
    prt_write_file(prt_line_buffer);
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
			     "/%s %d /_%s ffs\n", new_name, height, new_name);
    prt_write_file(prt_line_buffer);
}

/*
 * Write a line to define a duplicate of a CID font
 */
    static void
prt_dup_cidfont(original_name, new_name)
    char	*original_name;
    char	*new_name;
{
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
				       "/%s %s d\n", new_name, original_name);
    prt_write_file(prt_line_buffer);
}
#endif

/*
 * Convert a real value into an integer and fractional part as integers, with
 * the fractional part being in the range [0,10^precision).  The fractional part
 * is also rounded based on the precision + 1'th fractional digit.
 */
    static void
prt_real_bits(real, precision, pinteger, pfraction)
    double      real;
    int		precision;
    int		*pinteger;
    int		*pfraction;
{
    int     i;
    int     integer;
    float   fraction;

    integer = (int)real;
    fraction = (float)(real - integer);
    if (real < (double)integer)
	fraction = -fraction;
    for (i = 0; i < precision; i++)
	fraction *= 10.0;

    *pinteger = integer;
    *pfraction = (int)(fraction + 0.5);
}

/*
 * Write a real and a space.  Save bytes if real value has no fractional part!
 * We use prt_real_bits() as %f in sprintf uses the locale setting to decide
 * what decimal point character to use, but PS always requires a '.'.
 */
    static void
prt_write_real(val, prec)
    double	val;
    int		prec;
{
    int     integer;
    int     fraction;

    prt_real_bits(val, prec, &integer, &fraction);
    /* Emit integer part */
    sprintf((char *)prt_line_buffer, "%d", integer);
    prt_write_file(prt_line_buffer);
    /* Only emit fraction if necessary */
    if (fraction != 0)
    {
	/* Remove any trailing zeros */
	while ((fraction % 10) == 0)
	{
	    prec--;
	    fraction /= 10;
	}
	/* Emit fraction left padded with zeros */
	sprintf((char *)prt_line_buffer, ".%0*d", prec, fraction);
	prt_write_file(prt_line_buffer);
    }
    sprintf((char *)prt_line_buffer, " ");
    prt_write_file(prt_line_buffer);
}

/*
 * Write a line to define a numeric variable.
 */
    static void
prt_def_var(name, value, prec)
    char	*name;
    double	value;
    int		prec;
{
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
								"/%s ", name);
    prt_write_file(prt_line_buffer);
    prt_write_real(value, prec);
    sprintf((char *)prt_line_buffer, "d\n");
    prt_write_file(prt_line_buffer);
}

/* Convert size from font space to user space at current font scale */
#define PRT_PS_FONT_TO_USER(scale, size)    ((size) * ((scale)/1000.0))

    static void
prt_flush_buffer()
{
    if (prt_ps_buffer.ga_len > 0)
    {
	/* Any background color must be drawn first */
	if (prt_do_bgcol && (prt_new_bgcol != PRCOLOR_WHITE))
	{
	    int     r, g, b;

	    if (prt_do_moveto)
	    {
		prt_write_real(prt_pos_x_moveto, 2);
		prt_write_real(prt_pos_y_moveto, 2);
		prt_write_string("m\n");
		prt_do_moveto = FALSE;
	    }

	    /* Size of rect of background color on which text is printed */
	    prt_write_real(prt_text_run, 2);
	    prt_write_real(prt_line_height, 2);

	    /* Lastly add the color of the background */
	    r = ((unsigned)prt_new_bgcol & 0xff0000) >> 16;
	    g = ((unsigned)prt_new_bgcol & 0xff00) >> 8;
	    b = prt_new_bgcol & 0xff;
	    prt_write_real(r / 255.0, 3);
	    prt_write_real(g / 255.0, 3);
	    prt_write_real(b / 255.0, 3);
	    prt_write_string("bg\n");
	}
	/* Draw underlines before the text as it makes it slightly easier to
	 * find the starting point.
	 */
	if (prt_do_underline)
	{
	    if (prt_do_moveto)
	    {
		prt_write_real(prt_pos_x_moveto, 2);
		prt_write_real(prt_pos_y_moveto, 2);
		prt_write_string("m\n");
		prt_do_moveto = FALSE;
	    }

	    /* Underline length of text run */
	    prt_write_real(prt_text_run, 2);
	    prt_write_string("ul\n");
	}
	/* Draw the text
	 * Note: we write text out raw - EBCDIC conversion is handled in the
	 * PostScript world via the font encoding vector. */
#ifdef FEAT_MBYTE
	if (prt_out_mbyte)
	    prt_write_string("<");
	else
#endif
	    prt_write_string("(");
	prt_write_file_raw_len(prt_ps_buffer.ga_data, prt_ps_buffer.ga_len);
#ifdef FEAT_MBYTE
	if (prt_out_mbyte)
	    prt_write_string(">");
	else
#endif
	    prt_write_string(")");
	/* Add a moveto if need be and use the appropriate show procedure */
	if (prt_do_moveto)
	{
	    prt_write_real(prt_pos_x_moveto, 2);
	    prt_write_real(prt_pos_y_moveto, 2);
	    /* moveto and a show */
	    prt_write_string("ms\n");
	    prt_do_moveto = FALSE;
	}
	else /* Simple show */
	    prt_write_string("s\n");

	ga_clear(&prt_ps_buffer);
	ga_init2(&prt_ps_buffer, (int)sizeof(char), prt_bufsiz);
    }
}


    static void
prt_resource_name(filename, cookie)
    char_u  *filename;
    void    *cookie;
{
    char_u *resource_filename = cookie;

    if (STRLEN(filename) >= MAXPATHL)
	*resource_filename = NUL;
    else
	STRCPY(resource_filename, filename);
}

    static int
prt_find_resource(name, resource)
    char	*name;
    struct prt_ps_resource_S *resource;
{
    char_u	buffer[MAXPATHL + 1];

    STRCPY(resource->name, name);
    /* Look for named resource file in runtimepath */
    STRCPY(buffer, "print");
    add_pathsep(buffer);
    STRCAT(buffer, name);
    STRCAT(buffer, ".ps");
    resource->filename[0] = NUL;
    return (do_in_runtimepath(buffer, FALSE, prt_resource_name,
							   resource->filename)
	    && resource->filename[0] != NUL);
}

/* PS CR and LF characters have platform independent values */
#define PSLF  (0x0a)
#define PSCR  (0x0d)

/* Static buffer to read initial comments in a resource file, some can have a
 * couple of KB of comments! */
#define PRT_FILE_BUFFER_LEN (2048)
struct prt_resfile_buffer_S
{
    char_u  buffer[PRT_FILE_BUFFER_LEN];
    int     len;
    int     line_start;
    int     line_end;
};

static struct prt_resfile_buffer_S prt_resfile;

    static int
prt_resfile_next_line()
{
    int     index;

    /* Move to start of next line and then find end of line */
    index = prt_resfile.line_end + 1;
    while (index < prt_resfile.len)
    {
	if (prt_resfile.buffer[index] != PSLF && prt_resfile.buffer[index]
									!= PSCR)
	    break;
	index++;
    }
    prt_resfile.line_start = index;

    while (index < prt_resfile.len)
    {
	if (prt_resfile.buffer[index] == PSLF || prt_resfile.buffer[index]
									== PSCR)
	    break;
	index++;
    }
    prt_resfile.line_end = index;

    return (index < prt_resfile.len);
}

    static int
prt_resfile_strncmp(offset, string, len)
    int     offset;
    char    *string;
    int     len;
{
    /* Force not equal if string is longer than remainder of line */
    if (len > (prt_resfile.line_end - (prt_resfile.line_start + offset)))
	return 1;

    return STRNCMP(&prt_resfile.buffer[prt_resfile.line_start + offset],
								string, len);
}

    static int
prt_resfile_skip_nonws(offset)
    int     offset;
{
    int     index;

    index = prt_resfile.line_start + offset;
    while (index < prt_resfile.line_end)
    {
	if (isspace(prt_resfile.buffer[index]))
	    return index - prt_resfile.line_start;
	index++;
    }
    return -1;
}

    static int
prt_resfile_skip_ws(offset)
    int     offset;
{
    int     index;

    index = prt_resfile.line_start + offset;
    while (index < prt_resfile.line_end)
    {
	if (!isspace(prt_resfile.buffer[index]))
	    return index - prt_resfile.line_start;
	index++;
    }
    return -1;
}

/* prt_next_dsc() - returns detail on next DSC comment line found.  Returns true
 * if a DSC comment is found, else false */
    static int
prt_next_dsc(p_dsc_line)
    struct prt_dsc_line_S *p_dsc_line;
{
    int     comment;
    int     offset;

    /* Move to start of next line */
    if (!prt_resfile_next_line())
	return FALSE;

    /* DSC comments always start %% */
    if (prt_resfile_strncmp(0, "%%", 2) != 0)
	return FALSE;

    /* Find type of DSC comment */
    for (comment = 0; comment < NUM_ELEMENTS(prt_dsc_table); comment++)
	if (prt_resfile_strncmp(0, prt_dsc_table[comment].string,
					    prt_dsc_table[comment].len) == 0)
	    break;

    if (comment != NUM_ELEMENTS(prt_dsc_table))
    {
	/* Return type of comment */
	p_dsc_line->type = prt_dsc_table[comment].type;
	offset = prt_dsc_table[comment].len;
    }
    else
    {
	/* Unrecognised DSC comment, skip to ws after comment leader */
	p_dsc_line->type = PRT_DSC_MISC_TYPE;
	offset = prt_resfile_skip_nonws(0);
	if (offset == -1)
	    return FALSE;
    }

    /* Skip ws to comment value */
    offset = prt_resfile_skip_ws(offset);
    if (offset == -1)
	return FALSE;

    p_dsc_line->string = &prt_resfile.buffer[prt_resfile.line_start + offset];
    p_dsc_line->len = prt_resfile.line_end - (prt_resfile.line_start + offset);

    return TRUE;
}

/* Improved hand crafted parser to get the type, title, and version number of a
 * PS resource file so the file details can be added to the DSC header comments.
 */
    static int
prt_open_resource(resource)
    struct prt_ps_resource_S *resource;
{
    int		offset;
    int		seen_all;
    int		seen_title;
    int		seen_version;
    FILE	*fd_resource;
    struct prt_dsc_line_S dsc_line;

    fd_resource = mch_fopen((char *)resource->filename, READBIN);
    if (fd_resource == NULL)
    {
	EMSG2(_("E624: Can't open file \"%s\""), resource->filename);
	return FALSE;
    }
    vim_memset(prt_resfile.buffer, NUL, PRT_FILE_BUFFER_LEN);

    /* Parse first line to ensure valid resource file */
    prt_resfile.len = (int)fread((char *)prt_resfile.buffer, sizeof(char_u),
					    PRT_FILE_BUFFER_LEN, fd_resource);
    if (ferror(fd_resource))
    {
	EMSG2(_("E457: Can't read PostScript resource file \"%s\""),
		resource->filename);
	fclose(fd_resource);
	return FALSE;
    }

    prt_resfile.line_end = -1;
    prt_resfile.line_start = 0;
    if (!prt_resfile_next_line())
	return FALSE;

    offset = 0;

    if (prt_resfile_strncmp(offset, PRT_RESOURCE_HEADER,
				       (int)STRLEN(PRT_RESOURCE_HEADER)) != 0)
    {
	EMSG2(_("E618: file \"%s\" is not a PostScript resource file"),
		resource->filename);
	fclose(fd_resource);
	return FALSE;
    }

    /* Skip over any version numbers and following ws */
    offset += (int)STRLEN(PRT_RESOURCE_HEADER);
    offset = prt_resfile_skip_nonws(offset);
    if (offset == -1)
	return FALSE;
    offset = prt_resfile_skip_ws(offset);
    if (offset == -1)
	return FALSE;

    if (prt_resfile_strncmp(offset, PRT_RESOURCE_RESOURCE,
				     (int)STRLEN(PRT_RESOURCE_RESOURCE)) != 0)
    {
	EMSG2(_("E619: file \"%s\" is not a supported PostScript resource file"),
		resource->filename);
	fclose(fd_resource);
	return FALSE;
    }
    offset += (int)STRLEN(PRT_RESOURCE_RESOURCE);

    /* Decide type of resource in the file */
    if (prt_resfile_strncmp(offset, PRT_RESOURCE_PROCSET,
				      (int)STRLEN(PRT_RESOURCE_PROCSET)) == 0)
	resource->type = PRT_RESOURCE_TYPE_PROCSET;
    else if (prt_resfile_strncmp(offset, PRT_RESOURCE_ENCODING,
				     (int)STRLEN(PRT_RESOURCE_ENCODING)) == 0)
	resource->type = PRT_RESOURCE_TYPE_ENCODING;
    else if (prt_resfile_strncmp(offset, PRT_RESOURCE_CMAP,
					 (int)STRLEN(PRT_RESOURCE_CMAP)) == 0)
	resource->type = PRT_RESOURCE_TYPE_CMAP;
    else
    {
	EMSG2(_("E619: file \"%s\" is not a supported PostScript resource file"),
		resource->filename);
	fclose(fd_resource);
	return FALSE;
    }

    /* Look for title and version of resource */
    resource->title[0] = '\0';
    resource->version[0] = '\0';
    seen_title = FALSE;
    seen_version = FALSE;
    seen_all = FALSE;
    while (!seen_all && prt_next_dsc(&dsc_line))
    {
	switch (dsc_line.type)
	{
	case PRT_DSC_TITLE_TYPE:
	    vim_strncpy(resource->title, dsc_line.string, dsc_line.len);
	    seen_title = TRUE;
	    if (seen_version)
		seen_all = TRUE;
	    break;

	case PRT_DSC_VERSION_TYPE:
	    vim_strncpy(resource->version, dsc_line.string, dsc_line.len);
	    seen_version = TRUE;
	    if (seen_title)
		seen_all = TRUE;
	    break;

	case PRT_DSC_ENDCOMMENTS_TYPE:
	    /* Wont find title or resource after this comment, stop searching */
	    seen_all = TRUE;
	    break;

	case PRT_DSC_MISC_TYPE:
	    /* Not interested in whatever comment this line had */
	    break;
	}
    }

    if (!seen_title || !seen_version)
    {
	EMSG2(_("E619: file \"%s\" is not a supported PostScript resource file"),
		resource->filename);
	fclose(fd_resource);
	return FALSE;
    }

    fclose(fd_resource);

    return TRUE;
}

    static int
prt_check_resource(resource, version)
    struct prt_ps_resource_S *resource;
    char_u  *version;
{
    /* Version number m.n should match, the revision number does not matter */
    if (STRNCMP(resource->version, version, STRLEN(version)))
    {
	EMSG2(_("E621: \"%s\" resource file has wrong version"),
		resource->name);
	return FALSE;
    }

    /* Other checks to be added as needed */
    return TRUE;
}

    static void
prt_dsc_start()
{
    prt_write_string("%!PS-Adobe-3.0\n");
}

    static void
prt_dsc_noarg(comment)
    char	*comment;
{
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
							 "%%%%%s\n", comment);
    prt_write_file(prt_line_buffer);
}

    static void
prt_dsc_textline(comment, text)
    char	*comment;
    char	*text;
{
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
					       "%%%%%s: %s\n", comment, text);
    prt_write_file(prt_line_buffer);
}

    static void
prt_dsc_text(comment, text)
    char	*comment;
    char	*text;
{
    /* TODO - should scan 'text' for any chars needing escaping! */
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
					     "%%%%%s: (%s)\n", comment, text);
    prt_write_file(prt_line_buffer);
}

#define prt_dsc_atend(c)	prt_dsc_text((c), "atend")

    static void
prt_dsc_ints(comment, count, ints)
    char	*comment;
    int		count;
    int		*ints;
{
    int		i;

    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
							  "%%%%%s:", comment);
    prt_write_file(prt_line_buffer);

    for (i = 0; i < count; i++)
    {
	sprintf((char *)prt_line_buffer, " %d", ints[i]);
	prt_write_file(prt_line_buffer);
    }

    prt_write_string("\n");
}

    static void
prt_dsc_resources(comment, type, string)
    char	*comment;	/* if NULL add to previous */
    char	*type;
    char	*string;
{
    if (comment != NULL)
	vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
						 "%%%%%s: %s", comment, type);
    else
	vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
							    "%%%%+ %s", type);
    prt_write_file(prt_line_buffer);

    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
							     " %s\n", string);
    prt_write_file(prt_line_buffer);
}

    static void
prt_dsc_font_resource(resource, ps_font)
    char	*resource;
    struct prt_ps_font_S *ps_font;
{
    int     i;

    prt_dsc_resources(resource, "font",
				    ps_font->ps_fontname[PRT_PS_FONT_ROMAN]);
    for (i = PRT_PS_FONT_BOLD ; i <= PRT_PS_FONT_BOLDOBLIQUE ; i++)
	if (ps_font->ps_fontname[i] != NULL)
	    prt_dsc_resources(NULL, "font", ps_font->ps_fontname[i]);
}

    static void
prt_dsc_requirements(duplex, tumble, collate, color, num_copies)
    int		duplex;
    int		tumble;
    int		collate;
    int		color;
    int		num_copies;
{
    /* Only output the comment if we need to.
     * Note: tumble is ignored if we are not duplexing
     */
    if (!(duplex || collate || color || (num_copies > 1)))
	return;

    sprintf((char *)prt_line_buffer, "%%%%Requirements:");
    prt_write_file(prt_line_buffer);

    if (duplex)
    {
	prt_write_string(" duplex");
	if (tumble)
	    prt_write_string("(tumble)");
    }
    if (collate)
	prt_write_string(" collate");
    if (color)
	prt_write_string(" color");
    if (num_copies > 1)
    {
	prt_write_string(" numcopies(");
	/* Note: no space wanted so dont use prt_write_int() */
	sprintf((char *)prt_line_buffer, "%d", num_copies);
	prt_write_file(prt_line_buffer);
	prt_write_string(")");
    }
    prt_write_string("\n");
}

    static void
prt_dsc_docmedia(paper_name, width, height, weight, colour, type)
    char	*paper_name;
    double	width;
    double	height;
    double	weight;
    char	*colour;
    char	*type;
{
    vim_snprintf((char *)prt_line_buffer, sizeof(prt_line_buffer),
					"%%%%DocumentMedia: %s ", paper_name);
    prt_write_file(prt_line_buffer);
    prt_write_real(width, 2);
    prt_write_real(height, 2);
    prt_write_real(weight, 2);
    if (colour == NULL)
	prt_write_string("()");
    else
	prt_write_string(colour);
    prt_write_string(" ");
    if (type == NULL)
	prt_write_string("()");
    else
	prt_write_string(type);
    prt_write_string("\n");
}

    void
mch_print_cleanup()
{
#ifdef FEAT_MBYTE
    if (prt_out_mbyte)
    {
	int     i;

	/* Free off all CID font names created, but first clear duplicate
	 * pointers to the same string (when the same font is used for more than
	 * one style).
	 */
	for (i = PRT_PS_FONT_ROMAN; i <= PRT_PS_FONT_BOLDOBLIQUE; i++)
	{
	    if (prt_ps_mb_font.ps_fontname[i] != NULL)
		vim_free(prt_ps_mb_font.ps_fontname[i]);
	    prt_ps_mb_font.ps_fontname[i] = NULL;
	}
    }

    if (prt_do_conv)
    {
	convert_setup(&prt_conv, NULL, NULL);
	prt_do_conv = FALSE;
    }
#endif
    if (prt_ps_fd != NULL)
    {
	fclose(prt_ps_fd);
	prt_ps_fd = NULL;
	prt_file_error = FALSE;
    }
    if (prt_ps_file_name != NULL)
    {
	vim_free(prt_ps_file_name);
	prt_ps_file_name = NULL;
    }
}

    static float
to_device_units(idx, physsize, def_number)
    int		idx;
    double	physsize;
    int		def_number;
{
    float	ret;
    int		u;
    int		nr;

    u = prt_get_unit(idx);
    if (u == PRT_UNIT_NONE)
    {
	u = PRT_UNIT_PERC;
	nr = def_number;
    }
    else
	nr = printer_opts[idx].number;

    switch (u)
    {
	case PRT_UNIT_INCH:
	    ret = (float)(nr * PRT_PS_DEFAULT_DPI);
	    break;
	case PRT_UNIT_MM:
	    ret = (float)(nr * PRT_PS_DEFAULT_DPI) / (float)25.4;
	    break;
	case PRT_UNIT_POINT:
	    ret = (float)nr;
	    break;
	case PRT_UNIT_PERC:
	default:
	    ret = (float)(physsize * nr) / 100;
	    break;
    }

    return ret;
}

/*
 * Calculate margins for given width and height from printoptions settings.
 */
    static void
prt_page_margins(width, height, left, right, top, bottom)
    double	width;
    double	height;
    double	*left;
    double	*right;
    double	*top;
    double	*bottom;
{
    *left   = to_device_units(OPT_PRINT_LEFT, width, 10);
    *right  = width - to_device_units(OPT_PRINT_RIGHT, width, 5);
    *top    = height - to_device_units(OPT_PRINT_TOP, height, 5);
    *bottom = to_device_units(OPT_PRINT_BOT, height, 5);
}

    static void
prt_font_metrics(font_scale)
    int		font_scale;
{
    prt_line_height = (float)font_scale;
    prt_char_width = (float)PRT_PS_FONT_TO_USER(font_scale, prt_ps_font->wx);
}


    static int
prt_get_cpl()
{
    if (prt_use_number())
    {
	prt_number_width = PRINT_NUMBER_WIDTH * prt_char_width;
#ifdef FEAT_MBYTE
	/* If we are outputting multi-byte characters then line numbers will be
	 * printed with half width characters
	 */
	if (prt_out_mbyte)
	    prt_number_width /= 2;
#endif
	prt_left_margin += prt_number_width;
    }
    else
	prt_number_width = 0.0;

    return (int)((prt_right_margin - prt_left_margin) / prt_char_width);
}

#ifdef FEAT_MBYTE
    static int
prt_build_cid_fontname(font, name, name_len)
    int     font;
    char_u  *name;
    int     name_len;
{
    char    *fontname;

    fontname = (char *)alloc(name_len + 1);
    if (fontname == NULL)
	return FALSE;
    vim_strncpy((char_u *)fontname, name, name_len);
    prt_ps_mb_font.ps_fontname[font] = fontname;

    return TRUE;
}
#endif

/*
 * Get number of lines of text that fit on a page (excluding the header).
 */
    static int
prt_get_lpp()
{
    int lpp;

    /*
     * Calculate offset to lower left corner of background rect based on actual
     * font height (based on its bounding box) and the line height, handling the
     * case where the font height can exceed the line height.
     */
    prt_bgcol_offset = (float)PRT_PS_FONT_TO_USER(prt_line_height,
					   prt_ps_font->bbox_min_y);
    if ((prt_ps_font->bbox_max_y - prt_ps_font->bbox_min_y) < 1000.0)
    {
	prt_bgcol_offset -= (float)PRT_PS_FONT_TO_USER(prt_line_height,
				(1000.0 - (prt_ps_font->bbox_max_y -
					    prt_ps_font->bbox_min_y)) / 2);
    }

    /* Get height for topmost line based on background rect offset. */
    prt_first_line_height = prt_line_height + prt_bgcol_offset;

    /* Calculate lpp */
    lpp = (int)((prt_top_margin - prt_bottom_margin) / prt_line_height);

    /* Adjust top margin if there is a header */
    prt_top_margin -= prt_line_height * prt_header_height();

    return lpp - prt_header_height();
}

#ifdef FEAT_MBYTE
    static int
prt_match_encoding(p_encoding, p_cmap, pp_mbenc)
    char			*p_encoding;
    struct prt_ps_mbfont_S	*p_cmap;
    struct prt_ps_encoding_S	**pp_mbenc;
{
    int				mbenc;
    int				enc_len;
    struct prt_ps_encoding_S	*p_mbenc;

    *pp_mbenc = NULL;
    /* Look for recognised encoding */
    enc_len = (int)STRLEN(p_encoding);
    p_mbenc = p_cmap->encodings;
    for (mbenc = 0; mbenc < p_cmap->num_encodings; mbenc++)
    {
	if (STRNICMP(p_mbenc->encoding, p_encoding, enc_len) == 0)
	{
	    *pp_mbenc = p_mbenc;
	    return TRUE;
	}
	p_mbenc++;
    }
    return FALSE;
}

    static int
prt_match_charset(p_charset, p_cmap, pp_mbchar)
    char		    *p_charset;
    struct prt_ps_mbfont_S  *p_cmap;
    struct prt_ps_charset_S **pp_mbchar;
{
    int			    mbchar;
    int			    char_len;
    struct prt_ps_charset_S *p_mbchar;

    /* Look for recognised character set, using default if one is not given */
    if (*p_charset == NUL)
	p_charset = p_cmap->defcs;
    char_len = (int)STRLEN(p_charset);
    p_mbchar = p_cmap->charsets;
    for (mbchar = 0; mbchar < p_cmap->num_charsets; mbchar++)
    {
	if (STRNICMP(p_mbchar->charset, p_charset, char_len) == 0)
	{
	    *pp_mbchar = p_mbchar;
	    return TRUE;
	}
	p_mbchar++;
    }
    return FALSE;
}
#endif

/*ARGSUSED*/
    int
mch_print_init(psettings, jobname, forceit)
    prt_settings_T *psettings;
    char_u	*jobname;
    int		forceit;
{
    int		i;
    char	*paper_name;
    int		paper_strlen;
    int		fontsize;
    char_u	*p;
    double      left;
    double      right;
    double      top;
    double      bottom;
#ifdef FEAT_MBYTE
    int		props;
    int		cmap = 0;
    char_u	*p_encoding;
    struct prt_ps_encoding_S *p_mbenc;
    struct prt_ps_encoding_S *p_mbenc_first;
    struct prt_ps_charset_S  *p_mbchar;
#endif

#if 0
    /*
     * TODO:
     * If "forceit" is false: pop up a dialog to select:
     *	- printer name
     *	- copies
     *	- collated/uncollated
     *	- duplex off/long side/short side
     *	- paper size
     *	- portrait/landscape
     *	- font size
     *
     * If "forceit" is true: use the default printer and settings
     */
    if (forceit)
	s_pd.Flags |= PD_RETURNDEFAULT;
#endif

    /*
     * Set up font and encoding.
     */
#ifdef FEAT_MBYTE
    p_encoding = enc_skip(p_penc);
    if (*p_encoding == NUL)
	p_encoding = enc_skip(p_enc);

    /* Look for a multi-byte font that matches the encoding and character set.
     * Only look if multi-byte character set is defined, or using multi-byte
     * encoding other than Unicode.  This is because a Unicode encoding does not
     * uniquely identify a CJK character set to use. */
    p_mbenc = NULL;
    props = enc_canon_props(p_encoding);
    if (!(props & ENC_8BIT) && ((*p_pmcs != NUL) || !(props & ENC_UNICODE)))
    {
	p_mbenc_first = NULL;
	p_mbchar = NULL;
	for (cmap = 0; cmap < NUM_ELEMENTS(prt_ps_mbfonts); cmap++)
	    if (prt_match_encoding((char *)p_encoding, &prt_ps_mbfonts[cmap],
								    &p_mbenc))
	    {
		if (p_mbenc_first == NULL)
		    p_mbenc_first = p_mbenc;
		if (prt_match_charset((char *)p_pmcs, &prt_ps_mbfonts[cmap],
								   &p_mbchar))
		    break;
	    }

	/* Use first encoding matched if no charset matched */
	if (p_mbchar == NULL && p_mbenc_first != NULL)
	    p_mbenc = p_mbenc_first;
    }

    prt_out_mbyte = (p_mbenc != NULL);
    if (prt_out_mbyte)
    {
	/* Build CMap name - will be same for all multi-byte fonts used */
	prt_cmap[0] = NUL;

	prt_custom_cmap = (p_mbchar == NULL);
	if (!prt_custom_cmap)
	{
	    /* Check encoding and character set are compatible */
	    if ((p_mbenc->needs_charset & p_mbchar->has_charset) == 0)
	    {
		EMSG(_("E673: Incompatible multi-byte encoding and character set."));
		return FALSE;
	    }

	    /* Add charset name if not empty */
	    if (p_mbchar->cmap_charset != NULL)
	    {
		vim_strncpy((char_u *)prt_cmap,
		      (char_u *)p_mbchar->cmap_charset, sizeof(prt_cmap) - 3);
		STRCAT(prt_cmap, "-");
	    }
	}
	else
	{
	    /* Add custom CMap character set name */
	    if (*p_pmcs == NUL)
	    {
		EMSG(_("E674: printmbcharset cannot be empty with multi-byte encoding."));
		return FALSE;
	    }
	    vim_strncpy((char_u *)prt_cmap, p_pmcs, sizeof(prt_cmap) - 3);
	    STRCAT(prt_cmap, "-");
	}

	/* CMap name ends with (optional) encoding name and -H for horizontal */
	if (p_mbenc->cmap_encoding != NULL && STRLEN(prt_cmap)
		      + STRLEN(p_mbenc->cmap_encoding) + 3 < sizeof(prt_cmap))
	{
	    STRCAT(prt_cmap, p_mbenc->cmap_encoding);
	    STRCAT(prt_cmap, "-");
	}
	STRCAT(prt_cmap, "H");

	if (!mbfont_opts[OPT_MBFONT_REGULAR].present)
	{
	    EMSG(_("E675: No default font specified for multi-byte printing."));
	    return FALSE;
	}

	/* Derive CID font names with fallbacks if not defined */
	if (!prt_build_cid_fontname(PRT_PS_FONT_ROMAN,
				    mbfont_opts[OPT_MBFONT_REGULAR].string,
				    mbfont_opts[OPT_MBFONT_REGULAR].strlen))
	    return FALSE;
	if (mbfont_opts[OPT_MBFONT_BOLD].present)
	    if (!prt_build_cid_fontname(PRT_PS_FONT_BOLD,
					mbfont_opts[OPT_MBFONT_BOLD].string,
					mbfont_opts[OPT_MBFONT_BOLD].strlen))
		return FALSE;
	if (mbfont_opts[OPT_MBFONT_OBLIQUE].present)
	    if (!prt_build_cid_fontname(PRT_PS_FONT_OBLIQUE,
					mbfont_opts[OPT_MBFONT_OBLIQUE].string,
					mbfont_opts[OPT_MBFONT_OBLIQUE].strlen))
		return FALSE;
	if (mbfont_opts[OPT_MBFONT_BOLDOBLIQUE].present)
	    if (!prt_build_cid_fontname(PRT_PS_FONT_BOLDOBLIQUE,
				   mbfont_opts[OPT_MBFONT_BOLDOBLIQUE].string,
				  mbfont_opts[OPT_MBFONT_BOLDOBLIQUE].strlen))
		return FALSE;

	/* Check if need to use Courier for ASCII code range, and if so pick up
	 * the encoding to use */
	prt_use_courier = mbfont_opts[OPT_MBFONT_USECOURIER].present &&
	    (TOLOWER_ASC(mbfont_opts[OPT_MBFONT_USECOURIER].string[0]) == 'y');
	if (prt_use_courier)
	{
	    /* Use national ASCII variant unless ASCII wanted */
	    if (mbfont_opts[OPT_MBFONT_ASCII].present &&
		(TOLOWER_ASC(mbfont_opts[OPT_MBFONT_ASCII].string[0]) == 'y'))
		prt_ascii_encoding = "ascii";
	    else
		prt_ascii_encoding = prt_ps_mbfonts[cmap].ascii_enc;
	}

	prt_ps_font = &prt_ps_mb_font;
    }
    else
#endif
    {
#ifdef FEAT_MBYTE
	prt_use_courier = FALSE;
#endif
	prt_ps_font = &prt_ps_courier_font;
    }

    /*
     * Find the size of the paper and set the margins.
     */
    prt_portrait = (!printer_opts[OPT_PRINT_PORTRAIT].present
	   || TOLOWER_ASC(printer_opts[OPT_PRINT_PORTRAIT].string[0]) == 'y');
    if (printer_opts[OPT_PRINT_PAPER].present)
    {
	paper_name = (char *)printer_opts[OPT_PRINT_PAPER].string;
	paper_strlen = printer_opts[OPT_PRINT_PAPER].strlen;
    }
    else
    {
	paper_name = "A4";
	paper_strlen = 2;
    }
    for (i = 0; i < PRT_MEDIASIZE_LEN; ++i)
	if (STRLEN(prt_mediasize[i].name) == (unsigned)paper_strlen
		&& STRNICMP(prt_mediasize[i].name, paper_name,
							   paper_strlen) == 0)
	    break;
    if (i == PRT_MEDIASIZE_LEN)
	i = 0;
    prt_media = i;

    /*
     * Set PS pagesize based on media dimensions and print orientation.
     * Note: Media and page sizes have defined meanings in PostScript and should
     * be kept distinct.  Media is the paper (or transparency, or ...) that is
     * printed on, whereas the page size is the area that the PostScript
     * interpreter renders into.
     */
    if (prt_portrait)
    {
	prt_page_width = prt_mediasize[i].width;
	prt_page_height = prt_mediasize[i].height;
    }
    else
    {
	prt_page_width = prt_mediasize[i].height;
	prt_page_height = prt_mediasize[i].width;
    }

    /*
     * Set PS page margins based on the PS pagesize, not the mediasize - this
     * needs to be done before the cpl and lpp are calculated.
     */
    prt_page_margins(prt_page_width, prt_page_height, &left, &right, &top,
								    &bottom);
    prt_left_margin = (float)left;
    prt_right_margin = (float)right;
    prt_top_margin = (float)top;
    prt_bottom_margin = (float)bottom;

    /*
     * Set up the font size.
     */
    fontsize = PRT_PS_DEFAULT_FONTSIZE;
    for (p = p_pfn; (p = vim_strchr(p, ':')) != NULL; ++p)
	if (p[1] == 'h' && VIM_ISDIGIT(p[2]))
	    fontsize = atoi((char *)p + 2);
    prt_font_metrics(fontsize);

    /*
     * Return the number of characters per line, and lines per page for the
     * generic print code.
     */
    psettings->chars_per_line = prt_get_cpl();
    psettings->lines_per_page = prt_get_lpp();

    /* Catch margin settings that leave no space for output! */
    if (psettings->chars_per_line <= 0 || psettings->lines_per_page <= 0)
	return FAIL;

    /*
     * Sort out the number of copies to be printed.  PS by default will do
     * uncollated copies for you, so once we know how many uncollated copies are
     * wanted cache it away and lie to the generic code that we only want one
     * uncollated copy.
     */
    psettings->n_collated_copies = 1;
    psettings->n_uncollated_copies = 1;
    prt_num_copies = 1;
    prt_collate = (!printer_opts[OPT_PRINT_COLLATE].present
	    || TOLOWER_ASC(printer_opts[OPT_PRINT_COLLATE].string[0]) == 'y');
    if (prt_collate)
    {
	/* TODO: Get number of collated copies wanted. */
	psettings->n_collated_copies = 1;
    }
    else
    {
	/* TODO: Get number of uncollated copies wanted and update the cached
	 * count.
	 */
	prt_num_copies = 1;
    }

    psettings->jobname = jobname;

    /*
     * Set up printer duplex and tumble based on Duplex option setting - default
     * is long sided duplex printing (i.e. no tumble).
     */
    prt_duplex = TRUE;
    prt_tumble = FALSE;
    psettings->duplex = 1;
    if (printer_opts[OPT_PRINT_DUPLEX].present)
    {
	if (STRNICMP(printer_opts[OPT_PRINT_DUPLEX].string, "off", 3) == 0)
	{
	    prt_duplex = FALSE;
	    psettings->duplex = 0;
	}
	else if (STRNICMP(printer_opts[OPT_PRINT_DUPLEX].string, "short", 5)
									 == 0)
	    prt_tumble = TRUE;
    }

    /* For now user abort not supported */
    psettings->user_abort = 0;

    /* If the user didn't specify a file name, use a temp file. */
    if (psettings->outfile == NULL)
    {
	prt_ps_file_name = vim_tempname('p');
	if (prt_ps_file_name == NULL)
	{
	    EMSG(_(e_notmp));
	    return FAIL;
	}
	prt_ps_fd = mch_fopen((char *)prt_ps_file_name, WRITEBIN);
    }
    else
    {
	p = expand_env_save(psettings->outfile);
	if (p != NULL)
	{
	    prt_ps_fd = mch_fopen((char *)p, WRITEBIN);
	    vim_free(p);
	}
    }
    if (prt_ps_fd == NULL)
    {
	EMSG(_("E324: Can't open PostScript output file"));
	mch_print_cleanup();
	return FAIL;
    }

    prt_bufsiz = psettings->chars_per_line;
#ifdef FEAT_MBYTE
    if (prt_out_mbyte)
	prt_bufsiz *= 2;
#endif
    ga_init2(&prt_ps_buffer, (int)sizeof(char), prt_bufsiz);

    prt_page_num = 0;

    prt_attribute_change = FALSE;
    prt_need_moveto = FALSE;
    prt_need_font = FALSE;
    prt_need_fgcol = FALSE;
    prt_need_bgcol = FALSE;
    prt_need_underline = FALSE;

    prt_file_error = FALSE;

    return OK;
}

    static int
prt_add_resource(resource)
    struct prt_ps_resource_S *resource;
{
    FILE*	fd_resource;
    char_u	resource_buffer[512];
    size_t	bytes_read;

    fd_resource = mch_fopen((char *)resource->filename, READBIN);
    if (fd_resource == NULL)
    {
	EMSG2(_("E456: Can't open file \"%s\""), resource->filename);
	return FALSE;
    }
    prt_dsc_resources("BeginResource", prt_resource_types[resource->type],
						     (char *)resource->title);

    prt_dsc_textline("BeginDocument", (char *)resource->filename);

    for (;;)
    {
	bytes_read = fread((char *)resource_buffer, sizeof(char_u),
			   sizeof(resource_buffer), fd_resource);
	if (ferror(fd_resource))
	{
	    EMSG2(_("E457: Can't read PostScript resource file \"%s\""),
							    resource->filename);
	    fclose(fd_resource);
	    return FALSE;
	}
	if (bytes_read == 0)
	    break;
	prt_write_file_raw_len(resource_buffer, (int)bytes_read);
	if (prt_file_error)
	{
	    fclose(fd_resource);
	    return FALSE;
	}
    }
    fclose(fd_resource);

    prt_dsc_noarg("EndDocument");

    prt_dsc_noarg("EndResource");

    return TRUE;
}

    int
mch_print_begin(psettings)
    prt_settings_T *psettings;
{
    time_t	now;
    int		bbox[4];
    char	*p_time;
    double      left;
    double      right;
    double      top;
    double      bottom;
    struct prt_ps_resource_S res_prolog;
    struct prt_ps_resource_S res_encoding;
    char	buffer[256];
    char_u      *p_encoding;
    char_u	*p;
#ifdef FEAT_MBYTE
    struct prt_ps_resource_S res_cidfont;
    struct prt_ps_resource_S res_cmap;
#endif

    /*
     * PS DSC Header comments - no PS code!
     */
    prt_dsc_start();
    prt_dsc_textline("Title", (char *)psettings->jobname);
    if (!get_user_name((char_u *)buffer, 256))
	STRCPY(buffer, "Unknown");
    prt_dsc_textline("For", buffer);
    prt_dsc_textline("Creator", VIM_VERSION_LONG);
    /* Note: to ensure Clean8bit I don't think we can use LC_TIME */
    now = time(NULL);
    p_time = ctime(&now);
    /* Note: ctime() adds a \n so we have to remove it :-( */
    p = vim_strchr((char_u *)p_time, '\n');
    if (p != NULL)
	*p = NUL;
    prt_dsc_textline("CreationDate", p_time);
    prt_dsc_textline("DocumentData", "Clean8Bit");
    prt_dsc_textline("Orientation", "Portrait");
    prt_dsc_atend("Pages");
    prt_dsc_textline("PageOrder", "Ascend");
    /* The bbox does not change with orientation - it is always in the default
     * user coordinate system!  We have to recalculate right and bottom
     * coordinates based on the font metrics for the bbox to be accurate. */
    prt_page_margins(prt_mediasize[prt_media].width,
					    prt_mediasize[prt_media].height,
					    &left, &right, &top, &bottom);
    bbox[0] = (int)left;
    if (prt_portrait)
    {
	/* In portrait printing the fixed point is the top left corner so we
	 * derive the bbox from that point.  We have the expected cpl chars
	 * across the media and lpp lines down the media.
	 */
	bbox[1] = (int)(top - (psettings->lines_per_page + prt_header_height())
							    * prt_line_height);
	bbox[2] = (int)(left + psettings->chars_per_line * prt_char_width
									+ 0.5);
	bbox[3] = (int)(top + 0.5);
    }
    else
    {
	/* In landscape printing the fixed point is the bottom left corner so we
	 * derive the bbox from that point.  We have lpp chars across the media
	 * and cpl lines up the media.
	 */
	bbox[1] = (int)bottom;
	bbox[2] = (int)(left + ((psettings->lines_per_page
			      + prt_header_height()) * prt_line_height) + 0.5);
	bbox[3] = (int)(bottom + psettings->chars_per_line * prt_char_width
									+ 0.5);
    }
    prt_dsc_ints("BoundingBox", 4, bbox);
    /* The media width and height does not change with landscape printing! */
    prt_dsc_docmedia(prt_mediasize[prt_media].name,
				prt_mediasize[prt_media].width,
				prt_mediasize[prt_media].height,
				(double)0, NULL, NULL);
    /* Define fonts needed */
#ifdef FEAT_MBYTE
    if (!prt_out_mbyte || prt_use_courier)
#endif
	prt_dsc_font_resource("DocumentNeededResources", &prt_ps_courier_font);
#ifdef FEAT_MBYTE
    if (prt_out_mbyte)
    {
	prt_dsc_font_resource((prt_use_courier ? NULL
				 : "DocumentNeededResources"), &prt_ps_mb_font);
	if (!prt_custom_cmap)
	    prt_dsc_resources(NULL, "cmap", prt_cmap);
    }
#endif

    /* Search for external resources VIM supplies */
    if (!prt_find_resource("prolog", &res_prolog))
    {
	EMSG(_("E456: Can't find PostScript resource file \"prolog.ps\""));
	return FALSE;
    }
    if (!prt_open_resource(&res_prolog))
	return FALSE;
    if (!prt_check_resource(&res_prolog, PRT_PROLOG_VERSION))
	return FALSE;
#ifdef FEAT_MBYTE
    if (prt_out_mbyte)
    {
	/* Look for required version of multi-byte printing procset */
	if (!prt_find_resource("cidfont", &res_cidfont))
	{
	    EMSG(_("E456: Can't find PostScript resource file \"cidfont.ps\""));
	    return FALSE;
	}
	if (!prt_open_resource(&res_cidfont))
	    return FALSE;
	if (!prt_check_resource(&res_cidfont, PRT_CID_PROLOG_VERSION))
	    return FALSE;
    }
#endif

    /* Find an encoding to use for printing.
     * Check 'printencoding'. If not set or not found, then use 'encoding'. If
     * that cannot be found then default to "latin1".
     * Note: VIM specific encoding header is always skipped.
     */
#ifdef FEAT_MBYTE
    if (!prt_out_mbyte)
    {
#endif
	p_encoding = enc_skip(p_penc);
	if (*p_encoding == NUL
		|| !prt_find_resource((char *)p_encoding, &res_encoding))
	{
	    /* 'printencoding' not set or not supported - find alternate */
#ifdef FEAT_MBYTE
	    int		props;

	    p_encoding = enc_skip(p_enc);
	    props = enc_canon_props(p_encoding);
	    if (!(props & ENC_8BIT)
		    || !prt_find_resource((char *)p_encoding, &res_encoding))
		/* 8-bit 'encoding' is not supported */
#endif
		{
		/* Use latin1 as default printing encoding */
		p_encoding = (char_u *)"latin1";
		if (!prt_find_resource((char *)p_encoding, &res_encoding))
		{
		    EMSG2(_("E456: Can't find PostScript resource file \"%s.ps\""),
			    p_encoding);
		    return FALSE;
		}
	    }
	}
	if (!prt_open_resource(&res_encoding))
	    return FALSE;
	/* For the moment there are no checks on encoding resource files to
	 * perform */
#ifdef FEAT_MBYTE
    }
    else
    {
	p_encoding = enc_skip(p_penc);
	if (*p_encoding == NUL)
	    p_encoding = enc_skip(p_enc);
	if (prt_use_courier)
	{
	    /* Include ASCII range encoding vector */
	    if (!prt_find_resource(prt_ascii_encoding, &res_encoding))
	    {
		EMSG2(_("E456: Can't find PostScript resource file \"%s.ps\""),
							  prt_ascii_encoding);
		return FALSE;
	    }
	    if (!prt_open_resource(&res_encoding))
		return FALSE;
	    /* For the moment there are no checks on encoding resource files to
	     * perform */
	}
    }

    prt_conv.vc_type = CONV_NONE;
    if (!(enc_canon_props(p_enc) & enc_canon_props(p_encoding) & ENC_8BIT)) {
	/* Set up encoding conversion if required */
	if (FAIL == convert_setup(&prt_conv, p_enc, p_encoding))
	{
	    EMSG2(_("E620: Unable to convert to print encoding \"%s\""),
		    p_encoding);
	    return FALSE;
	}
	prt_do_conv = TRUE;
    }
    prt_do_conv = prt_conv.vc_type != CONV_NONE;

    if (prt_out_mbyte && prt_custom_cmap)
    {
	/* Find user supplied CMap */
	if (!prt_find_resource(prt_cmap, &res_cmap))
	{
	    EMSG2(_("E456: Can't find PostScript resource file \"%s.ps\""),
								    prt_cmap);
	    return FALSE;
	}
	if (!prt_open_resource(&res_cmap))
	    return FALSE;
    }
#endif

    /* List resources supplied */
    STRCPY(buffer, res_prolog.title);
    STRCAT(buffer, " ");
    STRCAT(buffer, res_prolog.version);
    prt_dsc_resources("DocumentSuppliedResources", "procset", buffer);
#ifdef FEAT_MBYTE
    if (prt_out_mbyte)
    {
	STRCPY(buffer, res_cidfont.title);
	STRCAT(buffer, " ");
	STRCAT(buffer, res_cidfont.version);
	prt_dsc_resources(NULL, "procset", buffer);

	if (prt_custom_cmap)
	{
	    STRCPY(buffer, res_cmap.title);
	    STRCAT(buffer, " ");
	    STRCAT(buffer, res_cmap.version);
	    prt_dsc_resources(NULL, "cmap", buffer);
	}
    }
    if (!prt_out_mbyte || prt_use_courier)
#endif
    {
	STRCPY(buffer, res_encoding.title);
	STRCAT(buffer, " ");
	STRCAT(buffer, res_encoding.version);
	prt_dsc_resources(NULL, "encoding", buffer);
    }
    prt_dsc_requirements(prt_duplex, prt_tumble, prt_collate,
#ifdef FEAT_SYN_HL
					psettings->do_syntax
#else
					0
#endif
					, prt_num_copies);
    prt_dsc_noarg("EndComments");

    /*
     * PS Document page defaults
     */
    prt_dsc_noarg("BeginDefaults");

    /* List font resources most likely common to all pages */
#ifdef FEAT_MBYTE
    if (!prt_out_mbyte || prt_use_courier)
#endif
	prt_dsc_font_resource("PageResources", &prt_ps_courier_font);
#ifdef FEAT_MBYTE
    if (prt_out_mbyte)
    {
	prt_dsc_font_resource((prt_use_courier ? NULL : "PageResources"),
							    &prt_ps_mb_font);
	if (!prt_custom_cmap)
	    prt_dsc_resources(NULL, "cmap", prt_cmap);
    }
#endif

    /* Paper will be used for all pages */
    prt_dsc_textline("PageMedia", prt_mediasize[prt_media].name);

    prt_dsc_noarg("EndDefaults");

    /*
     * PS Document prolog inclusion - all required procsets.
     */
    prt_dsc_noarg("BeginProlog");

    /* Add required procsets - NOTE: order is important! */
    if (!prt_add_resource(&res_prolog))
	return FALSE;
#ifdef FEAT_MBYTE
    if (prt_out_mbyte)
    {
	/* Add CID font procset, and any user supplied CMap */
	if (!prt_add_resource(&res_cidfont))
	    return FALSE;
	if (prt_custom_cmap && !prt_add_resource(&res_cmap))
	    return FALSE;
    }
#endif

#ifdef FEAT_MBYTE
    if (!prt_out_mbyte || prt_use_courier)
#endif
	/* There will be only one Roman font encoding to be included in the PS
	 * file. */
	if (!prt_add_resource(&res_encoding))
	    return FALSE;

    prt_dsc_noarg("EndProlog");

    /*
     * PS Document setup - must appear after the prolog
     */
    prt_dsc_noarg("BeginSetup");

    /* Device setup - page size and number of uncollated copies */
    prt_write_int((int)prt_mediasize[prt_media].width);
    prt_write_int((int)prt_mediasize[prt_media].height);
    prt_write_int(0);
    prt_write_string("sps\n");
    prt_write_int(prt_num_copies);
    prt_write_string("nc\n");
    prt_write_boolean(prt_duplex);
    prt_write_boolean(prt_tumble);
    prt_write_string("dt\n");
    prt_write_boolean(prt_collate);
    prt_write_string("c\n");

    /* Font resource inclusion and definition */
#ifdef FEAT_MBYTE
    if (!prt_out_mbyte || prt_use_courier)
    {
	/* When using Courier for ASCII range when printing multi-byte, need to
	 * pick up ASCII encoding to use with it. */
	if (prt_use_courier)
	    p_encoding = (char_u *)prt_ascii_encoding;
#endif
	prt_dsc_resources("IncludeResource", "font",
			  prt_ps_courier_font.ps_fontname[PRT_PS_FONT_ROMAN]);
	prt_def_font("F0", (char *)p_encoding, (int)prt_line_height,
		     prt_ps_courier_font.ps_fontname[PRT_PS_FONT_ROMAN]);
	prt_dsc_resources("IncludeResource", "font",
			  prt_ps_courier_font.ps_fontname[PRT_PS_FONT_BOLD]);
	prt_def_font("F1", (char *)p_encoding, (int)prt_line_height,
		     prt_ps_courier_font.ps_fontname[PRT_PS_FONT_BOLD]);
	prt_dsc_resources("IncludeResource", "font",
			  prt_ps_courier_font.ps_fontname[PRT_PS_FONT_OBLIQUE]);
	prt_def_font("F2", (char *)p_encoding, (int)prt_line_height,
		     prt_ps_courier_font.ps_fontname[PRT_PS_FONT_OBLIQUE]);
	prt_dsc_resources("IncludeResource", "font",
			  prt_ps_courier_font.ps_fontname[PRT_PS_FONT_BOLDOBLIQUE]);
	prt_def_font("F3", (char *)p_encoding, (int)prt_line_height,
		     prt_ps_courier_font.ps_fontname[PRT_PS_FONT_BOLDOBLIQUE]);
#ifdef FEAT_MBYTE
    }
    if (prt_out_mbyte)
    {
	/* Define the CID fonts to be used in the job.	Typically CJKV fonts do
	 * not have an italic form being a western style, so where no font is
	 * defined for these faces VIM falls back to an existing face.
	 * Note: if using Courier for the ASCII range then the printout will
	 * have bold/italic/bolditalic regardless of the setting of printmbfont.
	 */
	prt_dsc_resources("IncludeResource", "font",
			  prt_ps_mb_font.ps_fontname[PRT_PS_FONT_ROMAN]);
	if (!prt_custom_cmap)
	    prt_dsc_resources("IncludeResource", "cmap", prt_cmap);
	prt_def_cidfont("CF0", (int)prt_line_height,
			prt_ps_mb_font.ps_fontname[PRT_PS_FONT_ROMAN]);

	if (prt_ps_mb_font.ps_fontname[PRT_PS_FONT_BOLD] != NULL)
	{
	    prt_dsc_resources("IncludeResource", "font",
			      prt_ps_mb_font.ps_fontname[PRT_PS_FONT_BOLD]);
	    if (!prt_custom_cmap)
		prt_dsc_resources("IncludeResource", "cmap", prt_cmap);
	    prt_def_cidfont("CF1", (int)prt_line_height,
			    prt_ps_mb_font.ps_fontname[PRT_PS_FONT_BOLD]);
	}
	else
	    /* Use ROMAN for BOLD */
	    prt_dup_cidfont("CF0", "CF1");

	if (prt_ps_mb_font.ps_fontname[PRT_PS_FONT_OBLIQUE] != NULL)
	{
	    prt_dsc_resources("IncludeResource", "font",
			      prt_ps_mb_font.ps_fontname[PRT_PS_FONT_OBLIQUE]);
	    if (!prt_custom_cmap)
		prt_dsc_resources("IncludeResource", "cmap", prt_cmap);
	    prt_def_cidfont("CF2", (int)prt_line_height,
			    prt_ps_mb_font.ps_fontname[PRT_PS_FONT_OBLIQUE]);
	}
	else
	    /* Use ROMAN for OBLIQUE */
	    prt_dup_cidfont("CF0", "CF2");

	if (prt_ps_mb_font.ps_fontname[PRT_PS_FONT_BOLDOBLIQUE] != NULL)
	{
	    prt_dsc_resources("IncludeResource", "font",
			      prt_ps_mb_font.ps_fontname[PRT_PS_FONT_BOLDOBLIQUE]);
	    if (!prt_custom_cmap)
		prt_dsc_resources("IncludeResource", "cmap", prt_cmap);
	    prt_def_cidfont("CF3", (int)prt_line_height,
			    prt_ps_mb_font.ps_fontname[PRT_PS_FONT_BOLDOBLIQUE]);
	}
	else
	    /* Use BOLD for BOLDOBLIQUE */
	    prt_dup_cidfont("CF1", "CF3");
    }
#endif

    /* Misc constant vars used for underlining and background rects */
    prt_def_var("UO", PRT_PS_FONT_TO_USER(prt_line_height,
						prt_ps_font->uline_offset), 2);
    prt_def_var("UW", PRT_PS_FONT_TO_USER(prt_line_height,
						 prt_ps_font->uline_width), 2);
    prt_def_var("BO", prt_bgcol_offset, 2);

    prt_dsc_noarg("EndSetup");

    /* Fail if any problems writing out to the PS file */
    return !prt_file_error;
}

    void
mch_print_end(psettings)
    prt_settings_T *psettings;
{
    prt_dsc_noarg("Trailer");

    /*
     * Output any info we don't know in toto until we finish
     */
    prt_dsc_ints("Pages", 1, &prt_page_num);

    prt_dsc_noarg("EOF");

    /* Write CTRL-D to close serial communication link if used.
     * NOTHING MUST BE WRITTEN AFTER THIS! */
    prt_write_file((char_u *)IF_EB("\004", "\067"));

    if (!prt_file_error && psettings->outfile == NULL
					&& !got_int && !psettings->user_abort)
    {
	/* Close the file first. */
	if (prt_ps_fd != NULL)
	{
	    fclose(prt_ps_fd);
	    prt_ps_fd = NULL;
	}
	prt_message((char_u *)_("Sending to printer..."));

	/* Not printing to a file: use 'printexpr' to print the file. */
	if (eval_printexpr(prt_ps_file_name, psettings->arguments) == FAIL)
	    EMSG(_("E365: Failed to print PostScript file"));
	else
	    prt_message((char_u *)_("Print job sent."));
    }

    mch_print_cleanup();
}

    int
mch_print_end_page()
{
    prt_flush_buffer();

    prt_write_string("re sp\n");

    prt_dsc_noarg("PageTrailer");

    return !prt_file_error;
}

/*ARGSUSED*/
    int
mch_print_begin_page(str)
    char_u	*str;
{
    int		page_num[2];

    prt_page_num++;

    page_num[0] = page_num[1] = prt_page_num;
    prt_dsc_ints("Page", 2, page_num);

    prt_dsc_noarg("BeginPageSetup");

    prt_write_string("sv\n0 g\n");
#ifdef FEAT_MBYTE
    prt_in_ascii = !prt_out_mbyte;
    if (prt_out_mbyte)
	prt_write_string("CF0 sf\n");
    else
#endif
	prt_write_string("F0 sf\n");
    prt_fgcol = PRCOLOR_BLACK;
    prt_bgcol = PRCOLOR_WHITE;
    prt_font = PRT_PS_FONT_ROMAN;

    /* Set up page transformation for landscape printing. */
    if (!prt_portrait)
    {
	prt_write_int(-((int)prt_mediasize[prt_media].width));
	prt_write_string("sl\n");
    }

    prt_dsc_noarg("EndPageSetup");

    /* We have reset the font attributes, force setting them again. */
    curr_bg = (long_u)0xffffffff;
    curr_fg = (long_u)0xffffffff;
    curr_bold = MAYBE;

    return !prt_file_error;
}

    int
mch_print_blank_page()
{
    return (mch_print_begin_page(NULL) ? (mch_print_end_page()) : FALSE);
}

static float prt_pos_x = 0;
static float prt_pos_y = 0;

    void
mch_print_start_line(margin, page_line)
    int		margin;
    int		page_line;
{
    prt_pos_x = prt_left_margin;
    if (margin)
	prt_pos_x -= prt_number_width;

    prt_pos_y = prt_top_margin - prt_first_line_height -
					page_line * prt_line_height;

    prt_attribute_change = TRUE;
    prt_need_moveto = TRUE;
#ifdef FEAT_MBYTE
    prt_half_width = FALSE;
#endif
}

/*ARGSUSED*/
    int
mch_print_text_out(p, len)
    char_u	*p;
    int		len;
{
    int		need_break;
    char_u	ch;
    char_u      ch_buff[8];
    float       char_width;
    float       next_pos;
#ifdef FEAT_MBYTE
    int		in_ascii;
    int		half_width;
#endif

    char_width = prt_char_width;

#ifdef FEAT_MBYTE
    /* Ideally VIM would create a rearranged CID font to combine a Roman and
     * CJKV font to do what VIM is doing here - use a Roman font for characters
     * in the ASCII range, and the origingal CID font for everything else.
     * The problem is that GhostScript still (as of 8.13) does not support
     * rearranged fonts even though they have been documented by Adobe for 7
     * years!  If they ever do, a lot of this code will disappear.
     */
    if (prt_use_courier)
    {
	in_ascii = (len == 1 && *p < 0x80);
	if (prt_in_ascii)
	{
	    if (!in_ascii)
	    {
		/* No longer in ASCII range - need to switch font */
		prt_in_ascii = FALSE;
		prt_need_font = TRUE;
		prt_attribute_change = TRUE;
	    }
	}
	else if (in_ascii)
	{
	    /* Now in ASCII range - need to switch font */
	    prt_in_ascii = TRUE;
	    prt_need_font = TRUE;
	    prt_attribute_change = TRUE;
	}
    }
    if (prt_out_mbyte)
    {
	half_width = ((*mb_ptr2cells)(p) == 1);
	if (half_width)
	    char_width /= 2;
	if (prt_half_width)
	{
	    if (!half_width)
	    {
		prt_half_width = FALSE;
		prt_pos_x += prt_char_width/4;
		prt_need_moveto = TRUE;
		prt_attribute_change = TRUE;
	    }
	}
	else if (half_width)
	{
	    prt_half_width = TRUE;
	    prt_pos_x += prt_char_width/4;
	    prt_need_moveto = TRUE;
	    prt_attribute_change = TRUE;
	}
    }
#endif

    /* Output any required changes to the graphics state, after flushing any
     * text buffered so far.
     */
    if (prt_attribute_change)
    {
	prt_flush_buffer();
	/* Reset count of number of chars that will be printed */
	prt_text_run = 0;

	if (prt_need_moveto)
	{
	    prt_pos_x_moveto = prt_pos_x;
	    prt_pos_y_moveto = prt_pos_y;
	    prt_do_moveto = TRUE;

	    prt_need_moveto = FALSE;
	}
	if (prt_need_font)
	{
#ifdef FEAT_MBYTE
	    if (!prt_in_ascii)
		prt_write_string("CF");
	    else
#endif
		prt_write_string("F");
	    prt_write_int(prt_font);
	    prt_write_string("sf\n");
	    prt_need_font = FALSE;
	}
	if (prt_need_fgcol)
	{
	    int     r, g, b;
	    r = ((unsigned)prt_fgcol & 0xff0000) >> 16;
	    g = ((unsigned)prt_fgcol & 0xff00) >> 8;
	    b = prt_fgcol & 0xff;

	    prt_write_real(r / 255.0, 3);
	    if (r == g && g == b)
		prt_write_string("g\n");
	    else
	    {
		prt_write_real(g / 255.0, 3);
		prt_write_real(b / 255.0, 3);
		prt_write_string("r\n");
	    }
	    prt_need_fgcol = FALSE;
	}

	if (prt_bgcol != PRCOLOR_WHITE)
	{
	    prt_new_bgcol = prt_bgcol;
	    if (prt_need_bgcol)
		prt_do_bgcol = TRUE;
	}
	else
	    prt_do_bgcol = FALSE;
	prt_need_bgcol = FALSE;

	if (prt_need_underline)
	    prt_do_underline = prt_underline;
	prt_need_underline = FALSE;

	prt_attribute_change = FALSE;
    }

#ifdef FEAT_MBYTE
    if (prt_do_conv)
    {
	/* Convert from multi-byte to 8-bit encoding */
	p = string_convert(&prt_conv, p, &len);
	if (p == NULL)
	    p = (char_u *)"";
    }

    if (prt_out_mbyte)
    {
	/* Multi-byte character strings are represented more efficiently as hex
	 * strings when outputting clean 8 bit PS.
	 */
	do
	{
	    ch = prt_hexchar[(unsigned)(*p) >> 4];
	    ga_append(&prt_ps_buffer, ch);
	    ch = prt_hexchar[(*p) & 0xf];
	    ga_append(&prt_ps_buffer, ch);
	    p++;
	}
	while (--len);
    }
    else
#endif
    {
	/* Add next character to buffer of characters to output.
	 * Note: One printed character may require several PS characters to
	 * represent it, but we only count them as one printed character.
	 */
	ch = *p;
	if (ch < 32 || ch == '(' || ch == ')' || ch == '\\')
	{
	    /* Convert non-printing characters to either their escape or octal
	     * sequence, ensures PS sent over a serial line does not interfere
	     * with the comms protocol.  Note: For EBCDIC we need to write out
	     * the escape sequences as ASCII codes!
	     * Note 2: Char codes < 32 are identical in EBCDIC and ASCII AFAIK!
	     */
	    ga_append(&prt_ps_buffer, IF_EB('\\', 0134));
	    switch (ch)
	    {
		case BS:   ga_append(&prt_ps_buffer, IF_EB('b', 0142)); break;
		case TAB:  ga_append(&prt_ps_buffer, IF_EB('t', 0164)); break;
		case NL:   ga_append(&prt_ps_buffer, IF_EB('n', 0156)); break;
		case FF:   ga_append(&prt_ps_buffer, IF_EB('f', 0146)); break;
		case CAR:  ga_append(&prt_ps_buffer, IF_EB('r', 0162)); break;
		case '(':  ga_append(&prt_ps_buffer, IF_EB('(', 0050)); break;
		case ')':  ga_append(&prt_ps_buffer, IF_EB(')', 0051)); break;
		case '\\': ga_append(&prt_ps_buffer, IF_EB('\\', 0134)); break;

		default:
			   sprintf((char *)ch_buff, "%03o", (unsigned int)ch);
#ifdef EBCDIC
			   ebcdic2ascii(ch_buff, 3);
#endif
			   ga_append(&prt_ps_buffer, ch_buff[0]);
			   ga_append(&prt_ps_buffer, ch_buff[1]);
			   ga_append(&prt_ps_buffer, ch_buff[2]);
			   break;
	    }
	}
	else
	    ga_append(&prt_ps_buffer, ch);
    }

#ifdef FEAT_MBYTE
    /* Need to free any translated characters */
    if (prt_do_conv && (*p != NUL))
	vim_free(p);
#endif

    prt_text_run += char_width;
    prt_pos_x += char_width;

    /* The downside of fp - use relative error on right margin check */
    next_pos = prt_pos_x + prt_char_width;
    need_break = (next_pos > prt_right_margin) &&
		    ((next_pos - prt_right_margin) > (prt_right_margin*1e-5));

    if (need_break)
	prt_flush_buffer();

    return need_break;
}

    void
mch_print_set_font(iBold, iItalic, iUnderline)
    int		iBold;
    int		iItalic;
    int		iUnderline;
{
    int		font = 0;

    if (iBold)
	font |= 0x01;
    if (iItalic)
	font |= 0x02;

    if (font != prt_font)
    {
	prt_font = font;
	prt_attribute_change = TRUE;
	prt_need_font = TRUE;
    }
    if (prt_underline != iUnderline)
    {
	prt_underline = iUnderline;
	prt_attribute_change = TRUE;
	prt_need_underline = TRUE;
    }
}

    void
mch_print_set_bg(bgcol)
    long_u	bgcol;
{
    prt_bgcol = (int)bgcol;
    prt_attribute_change = TRUE;
    prt_need_bgcol = TRUE;
}

    void
mch_print_set_fg(fgcol)
    long_u	fgcol;
{
    if (fgcol != (long_u)prt_fgcol)
    {
	prt_fgcol = (int)fgcol;
	prt_attribute_change = TRUE;
	prt_need_fgcol = TRUE;
    }
}

# endif /*FEAT_POSTSCRIPT*/
#endif /*FEAT_PRINTER*/