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* Simplify the mparse_open()/mparse_wait() interface.Ingo Schwarze2014-11-261-4/+3
| | | | | Don't bother the user with the PID of the child process, store it inside the opaque mparse handle.
* In terminal output, unify handling of Unicode and numbered characterIngo Schwarze2014-10-291-2/+2
| | | | | | | | | | | 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 Schwarze2014-10-281-2/+2
| | | | | | | | 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.
* In -Tascii mode, provide approximations even for some Unicode escapeIngo Schwarze2014-10-261-1/+2
| | | | | | | | sequences above codepoint 512 by doing a reverse lookup in the existing mandoc_char(7) character table. Again, groff isn't smart enough to do this and silently discards such escape sequences without printing anything.
* integrate preconv(1) into mandoc(1);Ingo Schwarze2014-10-251-1/+3
| | | | enhances functionality and reduces code and docs by more than 300 lines
* Protect the roff parser from dividing by zero. ok schwarze@Kristaps Dzonsons2014-10-201-1/+2
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* Rudimentary implementation of the e, x, and z table layout modifiersIngo Schwarze2014-10-141-1/+2
| | | | | | | to equalize, maximize, and ignore the width of columns. Does not yet take vertical rulers into account, and does not do line breaks within table cells. Considerably improves the lftp(1) manual; issue noticed by sthen@.
* Improve error handling in the eqn(7) parser.Ingo Schwarze2014-10-121-2/+2
| | | | | | | | | | | | | | | | | | | Get rid of the first fatal error, MANDOCERR_EQNSYNT. In eqn(7), there is no need to be bug-compatible with groff, so there is no need to abondon the whole equation in case of a syntax error. In particular: * Skip "back", "delim", "down", "fwd", "gfont", "gsize", "left", "right", "size", and "up" without arguments. * Skip "gsize" and "size" with a non-numeric argument. * Skip closing delimiters that are not open. * Skip "above" outside piles. * For diacritic marks and binary operators without a left operand, default to an empty box. * Let piles and matrices take one argument rather than insisting on a braced list. Let HTML output handle that, too. * When rewinding, if the root box is guaranteed to match the termination condition, no error handling is needed.
* warn about parentheses in function names after .Fn and .Fo;Ingo Schwarze2014-10-111-1/+2
| | | | | particularly useful when converting from other languages to mdoc(7); feature suggested by bentley@
* sync Copyright years after merge to OpenBSD; no code changeIngo Schwarze2014-10-101-2/+2
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* Re-write of eqn(7) parser and MathML output.Kristaps Dzonsons2014-10-101-20/+13
| | | | | | | | | | 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.
* Parse from/to clauses in eqn.Kristaps Dzonsons2014-09-281-1/+2
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* Add support for EQNPOS_SUBSUP and a doubly-linked eqn_box list.Kristaps Dzonsons2014-09-281-1/+3
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* warn about commas in function arguments; inspired by mdoclint(1)Ingo Schwarze2014-09-121-1/+2
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* warn about botched .Xr ordering and punctuation below SEE ALSO;Ingo Schwarze2014-09-111-1/+3
| | | | inspired by mdoclint(1)
* warn about AUTHORS sections without .An macros, inspired by mdoclint(1)Ingo Schwarze2014-09-071-1/+2
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* Add *.gz support to apropos(1) -a, man(1), and even mandoc(1).Ingo Schwarze2014-09-031-2/+12
| | | | Implemented by moving the zip code from makewhatis(8) to the parser lib.
* Bring the handling of defective prologues even closer to groff,Ingo Schwarze2014-08-061-5/+8
| | | | | | | | | | | | in particular relaxing the distinction between prologue and body and further improving messages. * The last .Dd wins and the last .Os wins, even in the body. * The last .Dt before the first body macro wins. * Missing title in .Dt defaults to UNTITLED. Warn about it. * Missing section in .Dt does not default to 1. But warn about it. * Do not warn multiple times about the same mdoc(7) prologue macro. * Warn about missing .Os. * Incomplete .TH defaults to empty strings. Warn about it.
* mention requests and macros in more messagesIngo Schwarze2014-08-011-30/+30
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* Dynamically allocate the stack of roff(7) .ie condition valuesIngo Schwarze2014-08-011-2/+1
| | | | and thus get rid of the last useless fatal error.
* Split MANDOCERR_IGNARGV into one message for .An and one for .BlIngo Schwarze2014-07-311-2/+3
| | | | and report the macro name and argument.
* In .Bl -column, if some of the column width declarations are givenIngo Schwarze2014-07-311-2/+1
| | | | | | | | | | | | | right after the -column argument and some at the very end of the argument list, after some other arguments like -compact, concatenate the column lists. This gets rid of one of the last useless FATAL errors and actually shortens the code by a few lines. This fixes an issue introduced more than five years ago, at first causing an assert() since mdoc_action.c rev. 1.14 (June 17, 2009), then later a FATAL error since mdoc_validate rev. 1.130 (Nov. 30, 2010), and marked as "TODO" ever since.
* Remove the useless FATAL error "argument count wrong, violates syntax".Ingo Schwarze2014-07-301-2/+1
| | | | | | The last remaining instance was .It in .Bl -column with more than one excessive .Ta. However, simply downgrading from FATAL to ERROR, it just works fine, almost the same way as in groff, without any other changes.
* Get rid of the useless FATAL error "child violates parent syntax".Ingo Schwarze2014-07-301-2/+2
| | | | | When finding items outside lists, simply skip them and throw an ERROR. Handle subsections before the first section instead of bailing out.
* Remove two useless FATAL errors.Ingo Schwarze2014-07-301-3/+1
| | | | | When a file contains neither text nor macros, treat it as an empty document. When the mdoc(7) document prologue is incomplete, use some default values.
* better name and wording for the last two non-generic errorsIngo Schwarze2014-07-301-4/+4
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* Various improvements related to .Ex and .Rv:Ingo Schwarze2014-07-301-2/+3
| | | | | | | | | | * let .Nm fall back to the empty string, not to UNKNOWN * never let .Rv copy an argument from .Nm * avoid spurious \fR after empty .Nm in -Tman * correct handling of .Ex and .Rv in -Tman * correct the wording of the output for .Rv without arguments * use non-breaking spaces in .Ex and .Rv output where required * split MANDOCERR_NONAME into a warning for .Ex and an error for .Nm
* mark defos as const; nobody needs to change it,Ingo Schwarze2014-07-091-2/+3
| | | | and it is occasionally useful to be able to pass literal strings
* Clean up ERROR messages related to document structure and macros:Ingo Schwarze2014-07-071-8/+11
| | | | Hierarchical naming and mention macro names in messages.
* no need to delete any content from .Rs blocks,Ingo Schwarze2014-07-071-2/+2
| | | | and downgrade the related message from ERROR to WARNING
* no need to skip content before first section headerIngo Schwarze2014-07-071-2/+1
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* implement .dei and .amiIngo Schwarze2014-07-071-2/+1
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* Clean up messages related to plain text and to escape sequences.Ingo Schwarze2014-07-061-8/+9
| | | | | * Mention invalid escape sequences and string names, and fallbacks. * Hierarchical naming.
* Cleanup with respect to bad macro arguments.Ingo Schwarze2014-07-051-10/+9
| | | | | | | | * Fix .Sm with invalid arg: move arg out and toggle mode. * Promote "unknown standard" from WARNING to ERROR, it loses information. * Delete MANDOCERR_BADWIDTH, it would only indicate a mandoc(1) bug. * Do not report MANDOCERR_BL_LATETYPE when there is no type at all. * Mention macro names, arguments and fallbacks.
* Cleanup regarding -offset and -width:Ingo Schwarze2014-07-051-2/+3
| | | | | | | * Bugfix: Last one wins, not first one. * Fix .Bl -width without argument: it means 0n, so do not ignore it. * Report macro names, argument names and fallbacks in related messages. * Simplify: Garbage collect auxiliary variables in pre_bd() and pre_bl().
* Clean up messages regarding excess arguments:Ingo Schwarze2014-07-041-4/+5
| | | | | | * Downgrade ".Bf -emphasis Em" from FATAL to WARNING. * Mention the macros, the arguments, and the fallbacks. * Hierarchical naming.
* Clean up messages related to missing arguments.Ingo Schwarze2014-07-041-9/+8
| | | | | | | | | * Do not warn about empty -column cells, they seem valid to me. * Downgrade empty item and missing -std from ERROR to WARNING. * Hierarchical naming. * Descriptive, not imperative style. * Mention macro names, argument names, and fallbacks. * Garbage collect some unreachable code in post_it().
* Fix formatting of empty .Bl -inset item heads.Ingo Schwarze2014-07-031-2/+2
| | | | | | Downgrade empty item heads from ERROR to WARNING. Show the list type in the error message. Choose better variable names for nodes in post_it().
* MANDOCERR_NOARGS reported three completely unrelated classes of problems.Ingo Schwarze2014-07-031-2/+4
| | | | Split the roff(7) parts out of it and report the request names for these cases.
* Improve and test the messages about empty macros,Ingo Schwarze2014-07-021-2/+2
| | | | in particular reporting the macro names involved.
* Disentangle the MANDOCERR_CHILD message, which reported threeIngo Schwarze2014-07-021-2/+4
| | | | | completely different things, into three distinct messages. Also mention the macro names we are talking about.
* Clean up warnings related to macros and nesting.Ingo Schwarze2014-07-021-7/+7
| | | | | | | * Hierarchical naming of enum mandocerr items. * Improve the wording to make it comprehensible. * Mention the offending macro. * Garbage collect one chunk of ancient, long unreachable code.
* Improve "skipping paragraph macro" messages,Ingo Schwarze2014-07-021-3/+3
| | | | showing which macro was skipped and before or after what.
* Implement the obsolete macros .En .Es .Fr .Ot for backward compatibility,Ingo Schwarze2014-07-021-2/+2
| | | | | since this is hardly more complicated than explicitly ignoring them as we did in the past. Of course, do not use them!
* Clean up the warnings related to document structure.Ingo Schwarze2014-07-011-18/+18
| | | | | | | | | * Hierarchical naming of the related enum mandocerr items. * Mention the offending macro, section title, or string. While here, improve some wordings: * Descriptive instead of imperative style. * Uniform style for "missing" and "skipping". * Where applicable, mention the fallback used.
* garbage collect two unused enum mandocerr itemsIngo Schwarze2014-06-301-10/+6
| | | | and fix a couple of comments while here
* Improve messages related to the roff(7) .so request.Ingo Schwarze2014-06-251-2/+3
| | | | | | | | | | | | | In all these messages, show the filename argument that was passed to the .so request. In case of failure, show an additional message reporting the file and the line number where the failing request was found. The existing message reporting the reason for the failure - for example, "Permission denied" - is left in place, unchanged. Inspired by a question asked by Nick@ after he saw the confusing old messages that used to be emitted in this area.
* As suggested by jmc@, only include line and column numbers into messagesIngo Schwarze2014-06-201-2/+3
| | | | | | | | | | | | | | when they are meaningful, to avoid confusing stuff like this: $ mandoc /dev/null mandoc: /dev/null:0:1: FATAL: not a manual Instead, just say: mandoc: /dev/null: FATAL: not a manual Another example this applies to is documents having a prologue, but lacking a body. Do not throw a FATAL error for these; instead, issue a WARNING and show the empty document, in the man(7) case with the same amount of blank lines as groff does. Also downgrade mdoc(7) documents having content before the first .Sh from FATAL to WARNING.
* Start systematic improvements of error reporting.Ingo Schwarze2014-06-201-11/+11
| | | | | | | | | | | So far, this covers all WARNINGs related to the prologue. 1) hierarchical naming of MANDOCERR_* constants 2) mention the macro name in messages where that adds clarity 3) add one missing MANDOCERR_DATE_MISSING msg 4) fix the wording of one message related to the man(7) prologue Started on the plane back from Ottawa.
* KNF: case (FOO): -> case FOO:, remove /* LINTED */ and /* ARGSUSED */,Ingo Schwarze2014-04-201-6/+6
| | | | | remove trailing whitespace and blanks before tabs, improve some indenting; no functional change
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