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* Improve error handling in the eqn(7) parser.Ingo Schwarze2014-10-121-1/+1
| | | | | | | | | | | | | | | | | | | 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 Schwarze2014-10-111-0/+1
| | | | | particularly useful when converting from other languages to mdoc(7); feature suggested by bentley@
* sync Copyright years after merge to OpenBSD; no code changeIngo Schwarze2014-10-101-1/+1
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* Re-write of eqn(7) parser and MathML output.Kristaps Dzonsons2014-10-101-19/+12
| | | | | | | | | | 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 Dzonsons2014-09-281-0/+1
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* Add support for EQNPOS_SUBSUP and a doubly-linked eqn_box list.Kristaps Dzonsons2014-09-281-0/+2
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* warn about commas in function arguments; inspired by mdoclint(1)Ingo Schwarze2014-09-121-0/+1
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* warn about botched .Xr ordering and punctuation below SEE ALSO;Ingo Schwarze2014-09-111-0/+2
| | | | inspired by mdoclint(1)
* warn about AUTHORS sections without .An macros, inspired by mdoclint(1)Ingo Schwarze2014-09-071-0/+1
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* Add *.gz support to apropos(1) -a, man(1), and even mandoc(1).Ingo Schwarze2014-09-031-1/+11
| | | | Implemented by moving the zip code from makewhatis(8) to the parser lib.
* Bring the handling of defective prologues even closer to groff,Ingo Schwarze2014-08-061-4/+7
| | | | | | | | | | | | 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 Schwarze2014-08-011-29/+29
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* Dynamically allocate the stack of roff(7) .ie condition valuesIngo Schwarze2014-08-011-1/+0
| | | | and thus get rid of the last useless fatal error.
* Split MANDOCERR_IGNARGV into one message for .An and one for .BlIngo Schwarze2014-07-311-1/+2
| | | | and report the macro name and argument.
* In .Bl -column, if some of the column width declarations are givenIngo Schwarze2014-07-311-1/+0
| | | | | | | | | | | | | 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 Schwarze2014-07-301-1/+0
| | | | | | 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 Schwarze2014-07-301-1/+1
| | | | | 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 Schwarze2014-07-301-2/+0
| | | | | 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 Schwarze2014-07-301-3/+3
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* Various improvements related to .Ex and .Rv:Ingo Schwarze2014-07-301-1/+2
| | | | | | | | | | * 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 Schwarze2014-07-091-1/+2
| | | | and it is occasionally useful to be able to pass literal strings
* Clean up ERROR messages related to document structure and macros:Ingo Schwarze2014-07-071-7/+10
| | | | Hierarchical naming and mention macro names in messages.
* no need to delete any content from .Rs blocks,Ingo Schwarze2014-07-071-1/+1
| | | | and downgrade the related message from ERROR to WARNING
* no need to skip content before first section headerIngo Schwarze2014-07-071-1/+0
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* implement .dei and .amiIngo Schwarze2014-07-071-1/+0
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* Clean up messages related to plain text and to escape sequences.Ingo Schwarze2014-07-061-7/+8
| | | | | * Mention invalid escape sequences and string names, and fallbacks. * Hierarchical naming.
* Cleanup with respect to bad macro arguments.Ingo Schwarze2014-07-051-9/+8
| | | | | | | | * 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 Schwarze2014-07-051-1/+2
| | | | | | | * 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 Schwarze2014-07-041-3/+4
| | | | | | * 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 Schwarze2014-07-041-8/+7
| | | | | | | | | * 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 Schwarze2014-07-031-1/+1
| | | | | | 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 Schwarze2014-07-031-1/+3
| | | | 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 Schwarze2014-07-021-1/+1
| | | | in particular reporting the macro names involved.
* Disentangle the MANDOCERR_CHILD message, which reported threeIngo Schwarze2014-07-021-1/+3
| | | | | 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 Schwarze2014-07-021-6/+6
| | | | | | | * 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 Schwarze2014-07-021-2/+2
| | | | showing which macro was skipped and before or after what.
* Implement the obsolete macros .En .Es .Fr .Ot for backward compatibility,Ingo Schwarze2014-07-021-1/+1
| | | | | 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 Schwarze2014-07-011-17/+17
| | | | | | | | | * 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 Schwarze2014-06-301-9/+5
| | | | and fix a couple of comments while here
* Improve messages related to the roff(7) .so request.Ingo Schwarze2014-06-251-1/+2
| | | | | | | | | | | | | 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 Schwarze2014-06-201-1/+2
| | | | | | | | | | | | | | 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 Schwarze2014-06-201-10/+10
| | | | | | | | | | | 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 Schwarze2014-04-201-5/+5
| | | | | remove trailing whitespace and blanks before tabs, improve some indenting; no functional change
* Allow leading and trailing vertical lines,Ingo Schwarze2014-03-281-0/+1
| | | | | | | and format them in the same way as groff. While here, do not require whitespace before vertical lines in layout specifications. Issues found by bentley@ in mpv(1).
* The files mandoc.c and mandoc.h contained both specialised low-levelIngo Schwarze2014-03-231-6/+1
| | | | | | | functions used for multiple languages (mdoc, man, roff), for example mandoc_escape(), mandoc_getarg(), mandoc_eos(), and generic auxiliary functions. Split the auxiliaries out into their own file and header. While here, do some #include cleanup.
* Without the MPARSE_SO option, if the file contains nothing but aIngo Schwarze2014-03-191-1/+1
| | | | | | single .so request, do not read the file pointed to, but instead let mparse_result() provide the file name pointed to as a return value. To be used by makewhatis(8) in the future.
* Generalize the mparse_alloc() and roff_alloc() functions by givingIngo Schwarze2014-03-191-10/+6
| | | | | | | | them an "options" argument, replacing the existing "inttype" and "quick" arguments, preparing for a future MPARSE_SO option. Store this argument in struct mparse and struct roff, replacing the existing "inttype", "parsetype", and "quick" members. No functional change except one tiny cosmetic fix in roff_TH().
* Implement the \: (optional line break) escape sequence,Ingo Schwarze2014-01-221-0/+1
| | | | | | | documented in the Ossanna-Kernighan-Ritter troff manual and also supported by groff. Missing feature reported by Steffen Nurpmeso <sdaoden at gmail dot com>.
* Add an option -Q (quick) to mandocdb(8)Ingo Schwarze2014-01-051-1/+1
| | | | | | | | | | | | | | | for accelerated generation of reduced-size databases. Implement this by allowing the parsers to optionally abort the parse sequence after the NAME section. While here, garbage collect the unused void *arg attribute of struct mparse and mparse_alloc() and fix some errors in mandoc(3). This reduces the processing time of mandocdb(8) on /usr/share/man by a factor of 2 and the database size by a factor of 4. However, it still takes 5 times the time and 6 times the space of makewhatis(8), so more work is clearly needed.
* Since the functions in read.c are part of the mandoc(3) library,Ingo Schwarze2014-01-021-1/+9
| | | | | | do not print to stderr. Instead, properly use the mmsg callback. Issue noticed by Abhinav Upadhyay <er dot abhinav dot upadhyay at gmail dot com> and Thomas Klausner <wiz at NetBSD>.
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