Change syntax of \O: \O[0] suppresses output, \O[1] enables output

if at outer level; at start-up we are at outer level.

* src/roff/troff/input.cc (do_suppress): Implement it.
Simplify \O[3].

Add option -p to show progress information.
pre-grohtml will now render only one page at a time, reducing the
size of needed disk resources enormously.

* src/preproc/html/pre-html.cc (imagePageStem): Replaced with...
(imagePageName): New global variable.
(psPageName, show_progress, currentPageNo): New global variables.
(html_system): Close saved stderr and stdout handles.
(write_end_image): Accept a parameter to control \O escape.
(write_start_image): Adapted to new \O meaning.
(char_buffer::write_upto_newline): Updated.
(createAllPages): Replaced with...
(createPage): This new function to create a single page for images.
It uses `psselect' from the psutils package.
(removeAllPages): Removed.
(createImage): Updated.
Handle progress display.
(char_buffer::do_html, char_buffer::do_image) [DEBUGGING]: Removed.
(scanArguments): Add option -p.
(makeTempFiles): Updated to create temp files for psPageName and
imagePageName.
(removeTempFiles): Removed.
(main): Updated.

* src/devices/grohtml/post-html.cc (header_desc::write_headings,
html_printer::write_header): Append `\0' to `buffer'.
(html_printer::do_eol): Depend on `current_paragraph->emitted_text'.
(main): Handle -p.
* src/devices/grohtml/html-text.cc (html_text::dump_stack_element):
Handle `text_emitted'.
(html_text::table_is_void): Slightly rewritten.
(stop): New external symbol.
(html_text::do_push) [DEBUGGING]: Use it and simplify.
(html_text::shutdown): Call `dump_stack'.
(html_text::do_space): Rewritten.
* src/devices/grohtml/grohtml.man: Document -p and the need of
`psselect'.

* tmac/www.tmac (DC, HTML-DO-IMAGE, HTML-IMAGE-END): Updated to
new \O syntax.
Call \O[0] if `ps4html' is active.
* tmac/s.tmac (@EQ, @EN): Handle html better.
(@TS, TE): Ditto.
* tmac/html.tmac: Don't use black for background colour.

* src/roff/troff/node.cc: Include `div.h'.
(troff_output_file::really_print_line): Don't use `is_on'.
(troff_output_file::word_marker, troff_output_file::flush_tbuf
troff_output_file::check_charinfo,
troff_output_file::put_char_width, troff_output_file::put_char,
troff_output_file::determine_line_limits, troff_output_file::draw,
real_output_file::begin_page, glyph_color_node::tprintf,
fill_color_node::tprint, hline_node::tprint, vline_node::tprint):
Use `is_on'.
(troff_output_file::really_on): Call `do_motion'.
(suppress_node::tprint): Use `get_page_number' instead of `%'
register.
Call `reset_output_registers' conditionally on `is_on'.

* doc/groff.texinfo: Document new syntax of \O.
* NEWS, man/groff_diff.man: Updated.

1 files changed, 2 insertions, 2 deletions

diff --git a/doc/pic.ms b/doc/pic.ms
index dcbddb19..b85e8b98 100644
--- a/doc/pic.ms
+++ b/doc/pic.ms
@@ -10,7 +10,7 @@
 .\" This document was written for free use and redistribution by
 .\" Eric S. Raymond <esr@thyrsus.com> in August 1995.
 .\"
-.\"	$Id: pic.ms,v 1.14 2002/05/17 12:09:09 wlemb Exp $	
+.\"	$Id: pic.ms,v 1.15 2002/05/22 21:51:17 wlemb Exp $	
 .\"
 .\" Set a proper TeX
 .ie t .ds tx T\h'-.1667m'\v'.224m'E\v'-.224m'\h'-.125m'X
@@ -830,7 +830,7 @@ object) as \fB5th ""\fP.
 .PP
 Objects are also numbered backwards by type from the last one.
 You can say \fB2nd last box\fP to get the second-to-last box, or
-\fB3rd last ellipse\fP to get the third-to-last box.
+\fB3rd last ellipse\fP to get the third-to-last ellipse.
 .PP
 In places where \fIn\/\fBth\fR is allowed, \fB`\fIexpr\/\fB'th\fR is
 also allowed.  Note that