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* Multiple parser and formatter fixes for line drawing in tbl(7).Ingo Schwarze2015-01-271-4/+6
| | | | | | | | | | | | * Allow mixing vertical line bars with the layout options of the preceding layout cell. * Correctly combine box options with layout lines. * Correctly print vertical lines in data rows, with the right spacing. * Correctly print cross markers and left and right ends of horizontal lines even if vertical lines differ above and below. * Avoid the bogus error message "no table data cells" when a table data section starts with a horizontal line. No increase in code size.
* Rework tbl(7) layout parsing:Ingo Schwarze2015-01-261-2/+9
| | | | | | | | | | | * Continue parsing even if part of the input is invalid. * Do not require whitespace between cell specifications. * Allow tabs as well as blanks between modifiers. * Mark the 'm' modifier as unsupported. * Parse and ignore the 'p' and 'v' modifiers. * Better warning and error messages. * Get rid of a static buffer. Improved functionality but minus 50 lines of code.
* More improvements regarding tbl(7) options.Ingo Schwarze2015-01-261-0/+2
| | | | | | | | | * Treat "allbox" as an alias for "box" for now. * Parse and ignore the GNU tbl "nowarn" option. * For separation, allow spaces, tabs, and commas only. * Mark eqn(7) within tbl(7) as unsupported. * Simplify the option table. * Improve and sort documentation.
* Improve (or rather, rewrite) tbl(7) option parsing.Ingo Schwarze2015-01-261-3/+4
| | | | | | | | | | | | * Allow the layout to start after the semicolon on the options line. * Ignore leading commas. * Option arguments cannot contain closing parentheses. * Avoid needless UNSUPP messages. * Better ERROR reporting. * Delete unused "linesize" field in struct tbl_opts. * No need for static buffers. * Garbage collect one almost empty wrapper function. Improved functionality, but minus 40 lines of code.
* Support .RE with an argument; needed for audio/pms(1).Ingo Schwarze2015-01-241-0/+1
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* Traditional roff(7) explicitly allows certain control charactersIngo Schwarze2015-01-221-1/+2
| | | | | | | in the input stream (SOH, STX, ETX, ENQ, ACK, BEL, BS) for specific purposes (leaders, backspace, delimiters, .tr), but making sure these don't leak through to the output is tricky, so mark them as unsupported for now.
* Rudimentary implementation of the roff(7) \o escape sequence (overstrike).Ingo Schwarze2015-01-211-1/+2
| | | | | | 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).
* Split the -Werror message level into -Werror (broken manual, probablyIngo Schwarze2015-01-201-7/+12
| | | | | | | | | | | | | using mandoc is better than using groff) and -Wunsupp (manual using unsupported low-level roff(7) feature, probably using groff is better than using mandoc). Once this feature is complete, it is intended to help porting, making the decision whether to USE_GROFF easier. As a first step, distinguish four classes of roff(7) requests: 1. Supported (currently 24 requests) 2. Currently ignored because unimportant (120) -> no message 3. Ignored for good because insecure (14) -> -Werror 4. Currently unsupported (68) -> these trigger the new -Wunsupp messages
* Fatal errors no longer exist.Ingo Schwarze2015-01-151-4/+1
| | | | | | If a file can be opened, mandoc will produce some output; at worst, the output may be almost empty. Simplifies error handling and frees a message type for future use.
* downgrade .so failure from FATAL to ERRORIngo Schwarze2015-01-151-1/+1
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* downgrade ".so with absolute path" from FATAL to ERROR;Ingo Schwarze2015-01-141-1/+1
| | | | allows to get rid of ROFF_ERR
* To get rid of SYSERR entries in enum mandocerr, downgrade problems withIngo Schwarze2015-01-141-6/+1
| | | | | | missing and unreadable files from SYSERR to ERROR. Needed for upcoming work. As a bonus, this minimally simplifies code and documentation.
* Simplify handling of system errors: just exit(3).Ingo Schwarze2015-01-141-7/+0
| | | | | We already do the same for malloc(3) failure. The is no virtue in trying to survive failure of fork(2) and the like.
* Ignore mdoc(7) and man(7) macros inside tbl(7) code because theyIngo Schwarze2014-12-161-0/+1
| | | | | would abort the table in an unclean way, causing assertion failures found by jsg@.
* header cleanup:Ingo Schwarze2014-12-011-2/+2
| | | | | | * add missing forward declarations * remove needless header inclusions * some style unification
* The file read.c is part of the parser, so it cannot include main.h,Ingo Schwarze2014-12-011-1/+1
| | | | | | | which is not part of the parser. Besides, the parser *does* modify the input buffer, so marking it "const" in the mparse_readmem() interface is an outright lie. Fix all this by killing the const, the UNCONST, and the bogus inclusion.
* remove unneccessary inclusion protection; patch from deraadt@Ingo Schwarze2014-12-011-4/+0
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* Multiple fixes with respect to .Pf:Ingo Schwarze2014-11-301-0/+1
| | | | | | | * The first argument of .Pf is not parsed. * Normal delimiter handling does not apply to the first argument of .Pf. * Warn if nothing follows a prefix (inspired by groff_mdoc(7)). * In that case, do not suppress spacing.
* warn about attempts to call non-callable macros;Ingo Schwarze2014-11-301-0/+1
| | | | inspired by a similar warning in the groff_mdoc(7) macros
* Drop useless architecture table. Validating architecture namesIngo Schwarze2014-11-281-1/+0
| | | | | | is a job for makewhatis(8)/mandoc.db(5), not for the parser. Removes 150 lines from source files and 4k (1%) from the binary. Bloat found by deraadt@.
* Downgrade .Bd -file from FATAL to ERROR.Ingo Schwarze2014-11-271-1/+1
| | | | | Since this was the last remaining FATAL error in this area, this change will allow major simplifications in the mdoc(7) parser.
* Simplify the mparse_open()/mparse_wait() interface.Ingo Schwarze2014-11-261-3/+2
| | | | | 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 Schwarze2014-10-291-1/+1
| | | | | | | | | | | 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 Schwarze2014-10-281-1/+1
| | | | | | | | 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 Schwarze2014-10-261-0/+1
| | | | | | | | 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 Schwarze2014-10-251-0/+2
| | | | enhances functionality and reduces code and docs by more than 300 lines
* Protect the roff parser from dividing by zero. ok schwarze@Kristaps Dzonsons2014-10-201-0/+1
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* Rudimentary implementation of the e, x, and z table layout modifiersIngo Schwarze2014-10-141-0/+1
| | | | | | | 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 Schwarze2014-10-121-1/+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.
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