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* Profit from the unified struct roff_man and reduce the number ofIngo Schwarze2015-04-181-2/+2
| | | | | arguments of mparse_result() by one. No functional change. Written on the ICE Bruxelles-Koeln on the way back from p2k15.
* Replace the structs mdoc and man by a unified struct roff_man.Ingo Schwarze2015-04-181-7/+6
| | | | | Almost completely mechanical, no functional change. Written on the train from Exeter to London returning from p2k15.
* improve NAME section diagnostics;Ingo Schwarze2015-02-231-2/+5
| | | | confusing messages reported by Jan Stary <hans at stare dot cz>
* replace the last legacy generic message type, "argument count wrong",Ingo Schwarze2015-02-061-2/+3
| | | | by more specific messages, improving diagnostics for .cc .tr .Bl -column
* better error reporting regarding .OP .RS .UR .TH argumentsIngo Schwarze2015-02-061-1/+3
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* Delete the legacy generic warning type MANDOCERR_ARGCWARN,Ingo Schwarze2015-02-061-2/+2
| | | | | replacing the last instances by more specific warnings. Improved functionality, minus 50 lines of code.
* better handle .Fo and .Fd without argumentIngo Schwarze2015-02-061-1/+2
| | | | better handle .Fo with more than one argument
* discard .Rs head arguments and improve .Rs diagnosticsIngo Schwarze2015-02-041-1/+2
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* more specific .Nd diagnostics, allowing to get rid of enum check_lvlIngo Schwarze2015-02-041-1/+2
| | | | and the respective argument of check_count()
* Delete the redundant tbl span flags, just inspect the actual dataIngo Schwarze2015-01-301-4/+1
| | | | | | | | where needed, which is less fragile. This fixes a subtle NULL pointer access to tp->tbl.cols: Due to a bug in the man(7) parser, the first span of a table can end up in a .TP head, in which case tblcalc() was never called. Found by jsg@ with afl.
* Abolish struct tbl_head and replace it by an "int col" member inIngo Schwarze2015-01-301-14/+2
| | | | struct tbl_cell. No functional change, minus 40 lines of code.
* Clean up eqn(7) error handling:Ingo Schwarze2015-01-281-7/+1
| | | | | | | | * When "define" fails, do not drop the whole equation. * Free memory after "undef". * Use standard mandoc error types instead of rolling our own. * Delete obfuscating EQN_MSG() macro. * Add function prototypes while here.
* * Polish tbl(7) error reporting.Ingo Schwarze2015-01-281-8/+8
| | | | | | * Do not print out macro names in tbl(7) data blocks. * Like with GNU tbl, let empty tables cause a blank line. * Avoid producing empty tables in -Tman.
* Multiple parser and formatter fixes for line drawing in tbl(7).Ingo Schwarze2015-01-271-5/+7
| | | | | | | | | | | | * 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 Schwarze2015-01-261-3/+10
| | | | | | | | | | | * 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 Schwarze2015-01-261-1/+3
| | | | | | | | | * 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 Schwarze2015-01-261-4/+5
| | | | | | | | | | | | * 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 Schwarze2015-01-241-1/+2
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* Traditional roff(7) explicitly allows certain control charactersIngo Schwarze2015-01-221-2/+3
| | | | | | | 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 Schwarze2015-01-211-2/+3
| | | | | | 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 Schwarze2015-01-201-8/+13
| | | | | | | | | | | | | 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 Schwarze2015-01-151-5/+2
| | | | | | 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 Schwarze2015-01-151-2/+2
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* downgrade ".so with absolute path" from FATAL to ERROR;Ingo Schwarze2015-01-141-2/+2
| | | | allows to get rid of ROFF_ERR
* To get rid of SYSERR entries in enum mandocerr, downgrade problems withIngo Schwarze2015-01-141-7/+2
| | | | | | 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 Schwarze2015-01-141-8/+1
| | | | | 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 Schwarze2014-12-161-1/+2
| | | | | would abort the table in an unclean way, causing assertion failures found by jsg@.
* header cleanup:Ingo Schwarze2014-12-011-3/+3
| | | | | | * 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 Schwarze2014-12-011-2/+2
| | | | | | | 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 Schwarze2014-12-011-5/+1
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* Multiple fixes with respect to .Pf:Ingo Schwarze2014-11-301-1/+2
| | | | | | | * 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 Schwarze2014-11-301-1/+2
| | | | inspired by a similar warning in the groff_mdoc(7) macros
* Drop useless architecture table. Validating architecture namesIngo Schwarze2014-11-281-2/+1
| | | | | | 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 Schwarze2014-11-271-2/+2
| | | | | 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 Schwarze2014-11-261-4/+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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