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* do not access a NULL pointer when formatting a completely empty documentIngo Schwarze2019-01-111-1/+1
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* Remove the HTML title= attributes which harmed accessibility andIngo Schwarze2019-01-111-5/+5
| | | | | | | violated the principle of separation of content and presentation. Instead, implement the tooltips purely in CSS. Thanks to John Gardner <gardnerjohng at gmail dot com> for suggesting most of the styling in the new ::before rules.
* Represent mdoc(7) .Pp (and .sp, and some SYNOPSIS and .Rs features)Ingo Schwarze2019-01-071-10/+11
| | | | | | | | | | | | | | | | | | | by the <p> HTML element and use the html_fillmode() mechanism for .Bd -unfilled, just like it was done for man(7) earlier, finally getting rid both of the horrible <div class="Pp"></div> hack and of the worst HTML syntax violations caused by nested displays. Care is needed because in some situations, paragraphs have to remain open across several subsequent macros, whereas in other situations, they must get closed together with a block containing them. Some implementation details include: * Always close paragraphs before emitting HTML flow content. * Let html_close_paragraph() also close <pre> for extra safety. * Drop the old, now unused function print_paragraph(). * Minor adjustments in the top-level man(7) node formatter for symmetry. * Bugfix: .Ss heads suspend no-fill mode, even though .Ss doesn't end it. * Bugfix: give up on .Op semantic markup for now, see the comment.
* Finally, represent the man(7) .PP and .HP macros by the naturalIngo Schwarze2019-01-061-69/+54
| | | | | | | | | | | choice, which is the <p> HTML element. On top of the previous fill-mode improvements, the key to making this possible is to automatically close the <p> when required: before headers, subsequent paragraphs, lists, indented blocks, synopsis blocks, tbl(7) blocks, and before blocks using no-fill mode. In man(7) documents, represent the .sp request by a blank line in no-fill mode and in the same way as .PP in fill mode.
* In no-fill mode, avoid bogus blank lines in two situations:Ingo Schwarze2019-01-051-2/+2
| | | | | 1. After the last child; the parent will take care of the line break. 2. At the .YS macro; the end of the preceding .SY already broke the line.
* minor cleanup, no functional change:Ingo Schwarze2019-01-051-23/+15
| | | | | | | | * delete one irrelevant FIXME; no more fixed lengths in HTML, please * simplify some conditions * avoid testing pointers as truth values, use "!= NULL" * sort some declarations * delete some pointless blank lines
* Now that the NODE_NOFILL flag in the syntax tree is accurate,Ingo Schwarze2019-01-051-116/+17
| | | | | | | | | | use it in the man(7) HTML formatter rather than keeping fill mode state locally, resulting in massive simplification (minus 40 LOC). Move the html_fillmode() state handler function to the html.c module such that both the man(7) and the roff(7) formatter (and in the future, also the mdoc(7) formatter) can use it. Give it a query mode, to be invoked with TOKEN_NONE.
* Move parsing of the .nf and .fi (fill mode) requests from the man(7)Ingo Schwarze2018-12-311-18/+16
| | | | | | parser to the roff(7) parser. As a side effect, .nf and .fi are now also parsed in mdoc(7) input, though the mdoc(7) formatters still ignore most of their effect.
* Cleanup, no functional change:Ingo Schwarze2018-12-301-5/+5
| | | | | | | | | | | | | | The struct roff_man used to be a bad mixture of internal parser state and public parsing results. Move the public results to the parsing result struct roff_meta, which is already public. Move the rest of struct roff_man to the parser-internal header roff_int.h. Since the validators need access to the parser state, call them from the top level parser during mparse_result() rather than from the main programs, also reducing code duplication. This keeps parser internal state out of thee main programs (five in mandoc portable) and out of eight formatters.
* Yet another round of improvements to manual font selection.Ingo Schwarze2018-12-161-0/+1
| | | | | | | | | Unify handling of \f and .ft. Support \f4 (bold+italic). Support ".ft BI" and ".ft CW" for terminal output. Support the .ft request in HTML output. Reject the bogus fonts \f(C1, \f(C2, \f(C3, and \f(CP. In regress.pl, only strip leading whitespace in math mode.
* Cleanup, no functional change:Ingo Schwarze2018-12-131-1/+0
| | | | | | | | | | Split the top level parser interface out of the utility header mandoc.h, into a new header mandoc_parse.h, for use in the main program and in the main parser only. Move enum mandoc_os into roff.h because struct roff_man is the place where it is stored. This allows removal of mandoc.h from seven files in low-level parsers and in formatters.
* In the validators, translate obsolete macro aliases (Lp, Ot, LP, P)Ingo Schwarze2018-12-031-6/+11
| | | | | | to the standard forms (Pp, Ft, PP) up front, such that later code does not need to look for the obsolete versions. This reduces the risk of incomplete handling.
* Input lines that are not blank but generate no output,Ingo Schwarze2018-10-231-2/+5
| | | | | | | | | | | for example lines containing nothing but "\&", are significant in no-fill mode and can be represented by blank lines inside <pre>. Fixing a bug that Pali dot Rohar at gmail dot com found in pod2man(1) output, for example Email::Address::XS(3p). While here, inside no-fill mode, there is no need to encode totally blank input lines by emulating .PP - just let them through as we are inside <pre> anyway.
* implement the GNU man-ext .SY/.YS (synopsis block) macro in man(7),Ingo Schwarze2018-08-181-0/+24
| | | | used in most manual pages of the groff package
* Remove more pointer arithmetic passing via regions outside the arrayIngo Schwarze2018-08-171-5/+5
| | | | | that is undefined according to the C standard. Robert Elz <kre at munnari dot oz dot au> pointed out i wasn't quite done yet.
* implement the GNU man-ext .TQ macro in man(7),Ingo Schwarze2018-08-161-12/+13
| | | | used for example by groff_diff(7)
* garbage collect the unused "#define INDENT"Ingo Schwarze2018-07-271-2/+0
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* Ignore author-specified indentation for .RS; it harms responsiveIngo Schwarze2018-06-251-20/+2
| | | | | design. Use the existing @media-dependent indent instead. This removes the last style= attribute from man(7) output.
* For -man -Thtml, ignore author-specified .HP widths because theyIngo Schwarze2018-06-251-15/+4
| | | | harm responsive design; use @media-dependent defaults instead.
* Do not write duplicate id= attributes, they violate HTML syntax.Ingo Schwarze2018-05-251-4/+2
| | | | | Append suffixes for disambiguation. Issue first reported by Jakub Klinkovsky <j dot l dot k at gmx dot com> (Arch Linux).
* Eliminate the class=It-* attributes.Ingo Schwarze2018-05-081-2/+2
| | | | | Cleaner HTML, more idiomatic CSS, and minus 30 lines of C code. Suggested by John Gardner <gardnerjohng at gmail dot com>.
* replace my vague and idiosyncratic term "selflink"Ingo Schwarze2018-04-241-2/+2
| | | | | with the clearer and more usual "permalink"; suggested by John Gardner <gardnerjohng at gmail dot com>
* preserve comments before .Dd and .TH (typically Copyright and license)Ingo Schwarze2018-04-131-13/+20
| | | | | in full HTML output, but not with -Ofragment, e.g. in man.cgi(8); suggested by Thomas Klausner <wiz at NetBSD>
* preserve comments before .Dd when converting mdoc(7) to man(7)Ingo Schwarze2018-04-111-0/+2
| | | | with mandoc -Tman; suggested by Thomas Klausner <wiz at NetBSD>
* add support for the MT and ME mailto macros, used for example in wg(8);Ingo Schwarze2017-06-251-1/+10
| | | | patch from bentley@
* Split -Wstyle into -Wstyle and the even lower -Wbase, and addIngo Schwarze2017-06-241-0/+1
| | | | | | | | | | | | | | | -Wopenbsd and -Wnetbsd to check conventions for the base system of a specific operating system. Mark operating system specific messages with "(OpenBSD)" at the end. Please use just "-Tlint" to check base system manuals (defaulting to -Wall, which is now -Wbase), but prefer "-Tlint -Wstyle" for the manuals of portable software projects you maintain that are not part of OpenBSD base, to avoid bogus recommendations about base system conventions that do not apply. Issue originally reported by semarie@, solution using an idea from tedu@, discussed with jmc@ and jca@.
* make the internal a2roffsu() interface more powerful by returningIngo Schwarze2017-06-081-5/+1
| | | | | a pointer to the end of the parsed data, making it easier to parse subsequent bytes
* Trailing \c suppresses the output line break even ifIngo Schwarze2017-05-091-1/+2
| | | | | the next line is a text line starting with whitespace. Quirk found in the sysutils/rancid port.
* Move .sp to the roff modules. Enough infrastructure is in placeIngo Schwarze2017-05-051-21/+1
| | | | now that this actually saves code: -70 LOC.
* move .ll to the roff modulesIngo Schwarze2017-05-051-1/+0
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* Move handling of the roff(7) .ft request from the man(7)Ingo Schwarze2017-05-051-1/+0
| | | | | modules to the new roff(7) modules. As a side effect, mdoc(7) now handles .ft, too. Of course, do not use that.
* Start roff formatter modules for HTML and termininal output,Ingo Schwarze2017-05-041-17/+7
| | | | | | | used by both the mdoc and man formatters, with the ultimate goal of reducing code duplication between the two macro formatters. Made possible by the parser unification. Add the first formatting function (for the .br request).
* Parser reorg:Ingo Schwarze2017-05-041-1/+12
| | | | | Generate the first node on the roff level: .br Fix some column numbers in diagnostic messages while here.
* Continue parser unification:Ingo Schwarze2017-04-241-2/+3
| | | | | | | | * Make enum rofft an internal interface as enum roff_tok in "roff.h". * Represent mdoc and man macros in enum roff_tok. * Make TOKEN_NONE a proper enum value and use it throughout. * Put the prologue macros first in the macro tables. * Unify mdoc_macroname[] and man_macroname[] into roff_name[].
* Fix regression in mdoc_html.c 1.275, man_html 1.134:Ingo Schwarze2017-03-171-2/+4
| | | | | | For .Sh, .Ss, .SH, .SS, only write selflink if an id could be constructed. Crash reported by Raf Czlonka <rczlonka at gmail dot com>, analysis of root cause by natano@
* Minimal support for deep linking into man(7) pages.Ingo Schwarze2017-03-151-5/+17
| | | | | As the man(7) language does not provide semantic markup, only .SH, .SS, and .UR become anchors for now.
* Improve <table> syntax:Ingo Schwarze2017-02-051-1/+0
| | | | | | | | 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.
* Rework fill mode handling for -man -Thtml.Ingo Schwarze2017-01-301-68/+133
| | | | | | | | | | | | Basically, open <pre> whenever printing text in no-fill mode and it is not already open, and close it whenever printing something that cannot be inside <pre>. This fixes a crash reported by Michael <Stapelberg at debian dot org> in the French Linux chroot(2) manual and also improves rendering for OpenBSD pages like DPMSGetTimeouts(3) and GLwDrawingArea(3). These changes also permitted retiring struct mhtml.
* eliminate one useless struct and one level of indirection;Ingo Schwarze2017-01-291-2/+2
| | | | no functional change
* Fix -man -Thtml formatting after .nf (which has nothing to doIngo Schwarze2017-01-261-57/+46
| | | | | | | | | | | | | | | | 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
* clean up the remaining class attributesIngo Schwarze2017-01-211-3/+3
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* Standardize class attributes for semantic macros.Ingo Schwarze2017-01-201-2/+2
| | | | Correct markup for .Va and iprove markup for .Dv, .Er, .Ev while here.
* Clean up CSS rules for sections and paragraphs.Ingo Schwarze2017-01-191-12/+8
| | | | Start using real macro names for CSS classes.
* Start cleanup: trim useless HTML comments, <div> elements,Ingo Schwarze2017-01-191-9/+7
| | | | and CSS rules on the <html> and <body> levels.
* Implement line breaking of the generated HTML code at space charactersIngo Schwarze2017-01-191-2/+0
| | | | | | | | | 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 Schwarze2017-01-181-1/+0
| | | | | 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 Schwarze2017-01-171-5/+4
| | | | | | | | | 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 Schwarze2017-01-171-91/+46
| | | | | | | | | | 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.
* unify names of AST node flags; no change of cpp outputIngo Schwarze2017-01-101-3/+3
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* Delete the redundant "nchild" member of struct roff_node, replacingIngo Schwarze2016-01-081-2/+2
| | | | | | | | most uses by one, a few by two pointer checks, and only one by a tiny loop - not only making data smaller, but code shorter as well. This gets rid of an implicit invariant that confused both static analysis tools and human auditors. No functional change.
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