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* Minimal support for deep linking into man(7) pages.Ingo Schwarze2017-03-151-1/+24
| | | | | As the man(7) language does not provide semantic markup, only .SH, .SS, and .UR become anchors for now.
* Slightly increase widths calculated from string lengths (mainlyIngo Schwarze2017-03-141-0/+2
| | | | | | | | | | for .Bl -tag lists and SYNOPSIS .Nm blocks), such that the text still fits even if it is printed in bold font. This is an ugly band aid - but implementing font-dependent width measurements would be a major project and even more difficult for HTML than for PostScript. Issue reported by Jan Stary <hans at stare dot cz>.
* Print title="..." in addition to id="..." attributes for macro keysIngo Schwarze2017-03-131-5/+12
| | | | | that can be searched for by apropos(1), such that you see the semantic function in a tooltip when hovering with the mouse.
* mark up .Ar, .Fa, .Va, .Ft, and .Vt with <var> rather than <i>;Ingo Schwarze2017-02-051-0/+1
| | | | suggested by bentley@ long ago, but needed lots of cleanup first
* for .Rs, use <cite>Ingo Schwarze2017-02-051-0/+1
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* Improve <table> syntax:Ingo Schwarze2017-02-051-1/+1
| | | | | | | | The <col> element can only appear inside <colgroup>, so use <colgroup>. The <tbody> element is optional and useless, so don't use it. Even if we would ever need <thead> or <tfoot>, <tbody> would still be optional and useless; besides, we will likely never need <thead> or <tfoot>, simply because our languages don't support such functionality.
* eliminate one useless struct and one level of indirection;Ingo Schwarze2017-01-291-9/+9
| | | | no functional change
* Simplify usage of print_otag() even more:Ingo Schwarze2017-01-281-32/+50
| | | | accept NULL to skip the attribute or format.
* Fix -man -Thtml formatting after .nf (which has nothing to doIngo Schwarze2017-01-261-2/+1
| | | | | | | | | | | | | | | | with "literal", by the way, it means "no fill"): * Use <pre> such that whitespace is preserved. * Preserve lines breaks. * For font alternating macros, avoid node recursion which required scary juggling with the fill state. Instead, simply print the text children directly. Missing feature first noticed by kristaps@ in 2011, the again reported by afresh1@ in 2016, and finally reported here: https://github.com/Debian/debiman/issues/21 , which i only found because of Shane Kerr's comment here: https://plus.google.com/110314300533310775053/posts/H1eaw9Yskoc
* Improve HTML formatting of .Bl -tag.Ingo Schwarze2017-01-251-0/+3
| | | | | | | | | | | | | | | | | | | | | In particular, when using the style sheet, put the body on the same line as the head for short heads, or on the next line for long heads, in a way that preserves both correct indentation and correct vertical spacing with and without -compact, and with one or more heads per body (hi, Zaphod) - eight use cases so far - and with and without -tag, and with and without -offset, 32 use cases grand total. Using many ideas from zhuk@, from <David dot Dahlberg at fkie dot fraunhofer dot de>, and from Benny Lofgren <bl dash lists at lofgren dot biz>, and a few of my own. This is an excellent demonstration that CSS is an extremely hostile language, much more trapful and much harder to use than, say, C. When matthew@ reported this in July 2014 (!), it was already a known issue, and i no longer remember for how long. My first serious attempt at fixing it (in November 2015) failed miserably. I'd love to see simplifications of both the generated HTML code and of the style sheet, but without breaking any of the 32 use cases, please.
* slightly simplify header and footer stylesIngo Schwarze2017-01-211-4/+0
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* clean up markup of .Bd, .D1, .Dl, .Li, and .Ql;Ingo Schwarze2017-01-191-1/+0
| | | | in particular, stop abuse of <blockquote>
* Clean up CSS rules for sections and paragraphs.Ingo Schwarze2017-01-191-2/+2
| | | | Start using real macro names for CSS classes.
* Implement line breaking of the generated HTML code at space charactersIngo Schwarze2017-01-191-64/+170
| | | | | | | | | in filled text. This does not affect HTML semantics, but makes the HTML code even more humanly readable. While here, - collapse multiple consecutive space characters in filled text - and insert a blank between style entries.
* Make HTML output more human readable by overhauling line break logicIngo Schwarze2017-01-181-76/+143
| | | | | around tags and by introducing some simple indentation. No change of HTML semantics intended.
* Completely delete the buf field of struct html and all the buf*()Ingo Schwarze2017-01-171-154/+72
| | | | | | | | | interfaces. Such a static buffer was a bad idea in the first place, causing unfixable truncation that was only prevented by triggering an assertion failure. Instead, let the small number of remaining users allocate and free their own, temporary dynamic buffers, or for the case of .Xr and .In, pass the original data to be assembled in print_otag().
* Simplify the usage of print_otag() by making it accept a variableIngo Schwarze2017-01-171-49/+134
| | | | | | | | | | number of arguments. Delete struct htmlpair and all the PAIR_*() macros. Delete enum htmlattr, handle that in print_otag() instead. Minus 190 lines of code; no functional change except better ordering of attributes (class before style) in three cases.
* from Tiago Silva <tiagofilipesilva at icloud dot com> long agoIngo Schwarze2017-01-081-1/+1
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* Generate simpler in-page links: just replace spaces with underscores.Ingo Schwarze2016-01-041-3/+3
| | | | Patch from bentley@.
* Major character table cleanup:Ingo Schwarze2015-10-131-4/+2
| | | | | | | | | | | | | * Use ohash(3) rather than a hand-rolled hash table. * Make the character table static in the chars.c module: There is no need to pass a pointer around, we most certainly never want to use two different character tables concurrently. * No need to keep the characters in a separate file chars.in; that merely encourages downstream porters to mess with them. * Sort the characters to agree with the mandoc_chars(7) manual page. * Specify Unicode codepoints in hex, not decimal (that's the detail that originally triggered this patch). No functional change, minus 100 LOC, and i don't see a performance change.
* Fix an obvious bug found during the /* FALLTHROUGH */ cleanup:Ingo Schwarze2015-10-121-1/+1
| | | | ASCII_NBRSP has to be rendered as "&nbsp;", not "-".
* To make the code more readable, delete 283 /* FALLTHROUGH */ commentsIngo Schwarze2015-10-121-10/+1
| | | | | | that were right between two adjacent case statement. Keep only those 24 where the first case actually executes some code before falling through to the next case.
* modernize style: "return" is not a functionIngo Schwarze2015-10-061-7/+7
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* /* NOTREACHED */ after abort() is silly, delete itIngo Schwarze2015-09-261-1/+0
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* Actually use the new man.conf(5) "output" directive.Ingo Schwarze2015-03-271-28/+9
| | | | Additional functionality, yet minus 45 lines of code.
* Rudimentary implementation of the roff(7) \o escape sequence (overstrike).Ingo Schwarze2015-01-211-1/+8
| | | | | | This is of some relevance because the pod2man(1) preamble abuses it for the icelandic letter Thorn, instead of simply using \(TP and \(Tp. Missing feature found by sthen@ in DateTime::Locale::is_IS(3p).
* resolve some code duplication; no functional changeIngo Schwarze2014-12-201-26/+18
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* Fix the implementation and documentation of \c (continue text input line).Ingo Schwarze2014-12-021-1/+2
| | | | | In particular, make it work in no-fill mode, too. Reminded by Carsten dot Kunze at arcor dot de (Heirloom roff).
* The header libmandoc.h is part of the internal parser interface,Ingo Schwarze2014-12-011-1/+0
| | | | | | but html.c is not part of the parser at all, so it cannot include that header, and actually, it doesn't need it. Found while auditing includes after Theo's recent *.h commit.
* In terminal output, unify handling of Unicode and numbered characterIngo Schwarze2014-10-291-3/+6
| | | | | | | | | | | escape sequences just like it was earlier implemented for -Thtml. Do not let control characters other than ASCII 9 (horizontal tab) propagate to the output, even though groff allows them; but that really doesn't look like a great idea. Let mchars_num2char() return int such that we can distinguish invalid \N syntax from \N'0'. This also reduces the danger of signed char issues popping up.
* Make the character table available to libroff so it can check theIngo Schwarze2014-10-281-21/+3
| | | | | | | | validity of character escape names and warn about unknown ones. This requires mchars_spec2cp() to report unknown names again. Fortunately, that doesn't require changing the calling code because according to groff, invalid character escapes should not produce output anyway, and now that we warn about them, that's fine.
* Handle output encoding for unicode, numbered and named escape sequencesIngo Schwarze2014-10-271-22/+10
| | | | | | | | in one common, safe way instead of three different ways. In particular, * skip NUL, it is used to mean "no output desired" * deny 0x01-0x1F and 0x7F-0x9F, print REPLACEMENT CHARACTER instead * print 0x20-0x7E literally or name-encoded, as required * print characters above 0x9F numerically
* Fix a regression in term.c rev. 1.229 reported by bentley@:Ingo Schwarze2014-10-271-4/+5
| | | | | | | | | | In UTF-8 output, do not print anything if mchars_spec2cp() returns 0. In particular, this repairs handling of zero-width spaces (\&). While here, let mchars_spec2cp() return 0xFFFD instead of -1 if the character is not found, simplifying the using code. In HTML output, do not print obfuscated ASCII characters and do not test for one-char escapes, mchars_spec2cp() already does that.
* Improve -Tascii output for Unicode escape sequences: For the first 512Ingo Schwarze2014-10-261-2/+12
| | | | | | | | | | | | code points, provide ASCII approximations. This is already much better than what groff does, which prints nothing for most code points. A few minor fixes while here: * Handle Unicode escape sequences in the ASCII range. * In case of errors, use the REPLACEMENT CHARACTER U+FFFD for -Tutf8 and the string "<?>" for -Tascii output. * Handle all one-character escape sequences in mchars_spec2{cp,str}() and remove the workarounds on the higher level.
* sync Copyright years after merge to OpenBSD; no code changeIngo Schwarze2014-10-101-1/+1
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* Re-write of eqn(7) parser and MathML output.Kristaps Dzonsons2014-10-101-0/+1
| | | | | | | | | | This adds parser-level support for the grammar described by the eqn second-edition technical paper, "Typesetting Mathematics — User's Guide" (Kernighan, Cherry). The reason for this re-write is the grouping rules, which were not possible given the existing implementation. The re-write has also considerably simplified the HTML (and, if it ever is completed, terminal) front-end.
* Change "to" and "from" commands to use munder, mover, and munderover.Kristaps Dzonsons2014-09-281-0/+3
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* Add support for some MathML elements and attributes in our HTML5.Kristaps Dzonsons2014-09-281-0/+15
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* Don't pretend we have a separate XHTML and HTML mode any more.Kristaps Dzonsons2014-09-271-14/+7
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* Remove <p> in favour of <div class="spacer">.Kristaps Dzonsons2014-09-271-2/+14
| | | | | | | This is good because <p> is brittle: it can't appear within other block macros. This fixes a regression of the original HTML5 patch as noted by schwarze@ on the tech@ list, 14/8/2014.
* Remove last hard-coded width attribute.Kristaps Dzonsons2014-09-271-2/+3
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* HTML5-isation: remove more alignments.Kristaps Dzonsons2014-09-271-2/+2
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* Continue in HTML5-ing by kicking out some hard-coded alignments.Kristaps Dzonsons2014-09-271-1/+5
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* Kick out "summary" attribute, which isn't HTML5.Kristaps Dzonsons2014-09-271-1/+0
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* Kick out two attibutes we don't use any more in HTML5.Kristaps Dzonsons2014-09-271-2/+0
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* First, add space for default styling for HTML5 (non-fragment) output.Kristaps Dzonsons2014-09-271-0/+6
| | | | | This uses a <style /> block right before the <link /> for the stylesheet. Use this to kick out hardcoded header and footer table widths.
* First steps in HTML5: use UTF8 meta-charset and HTML5 doctype identifier.Kristaps Dzonsons2014-09-271-38/+5
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* Revert previous, as requested by kristaps@.Ingo Schwarze2014-08-141-1/+0
| | | | | | | | | | | | | The .Bf block can contain subblocks, so it has to render as an element that can contain flow content. But <em> cannot contain flow content, only phrasing content. Rendering .Em and .Bf differently would by unfortunate, and closing out .Bf before subblocks and re-opening it afterwards would merely complicate both the C code of the program and the generated HTML code. Besides, converting .Em to semantic HTML markup would require some content to be put into <em> and some into <i>, but we cannot automatically distinguish which is which, so strictly speaking, we can't use semantic HTML here but have to fall back to physical markup. Wonders of HTML...
* Begin cleaning up scaling units.Kristaps Dzonsons2014-08-131-0/+2
| | | | | | | | | Start with the horizontal terminal specifiers, making sure that they match up with troff. Then move on to PS, PDF, and HTML, noting that we stick to the terminal default width for "u". Lastly, fix some completely-wrong documentation and note that we diverge from troff w/r/t "u".
* Use <em> for .Em and .Bf -emphasis.Ingo Schwarze2014-08-131-0/+1
| | | | | | | | | | | | | | | | | The vast majority of .Em in real-world manuals is stress emphasis, for which <em> is the correct markup. Admittedly, there are some instances of .Em usage for alternate quality, for which <i> would be a better match. Most of these are technical terms that neither allow semantic markup nor are keywords - for the latter, .Sy would be preferable. A typical example is that the shell breaks input into .Em words . Alternate voice or mood, which would also require <i>, is almost absent from manuals. We cannot satisfy both stress emphasis and alternate quality, so pick the one that fits more often and looks less wrong when off. Patch from Guy Harris <guy at alum dot mit dot edu>. ok joerg@ bentley@
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