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* Align to the new, sane behaviour of the groff_mdoc(7) .Dd macro:Ingo Schwarze2020-01-191-2/+3
| | | | | | | | without an argument, use the empty string, and always concatenate all arguments, no matter their number. This allows reducing the number of arguments of mandoc_normdate() and some other simplifications, at the same time polishing some error messages by adding the name of the macro in question.
* Rename mandoc_getarg() to roff_getarg() and pass it the roff parserIngo Schwarze2018-12-211-1/+1
| | | | | | | | | | | | | | | | | | struct as an argument such that after copy-in, it can call roff_expand() once again, which used to be called roff_res() before this. This fixes a subtle low-level roff(7) parsing bug reported by Fabio Scotoni <fabio at esse dot ch> in the 4.4BSD-Lite2 mdoc.samples(7) manual page, because that page used an escaped escape sequence in a macro argument. To expand escaped escape sequences in quoted mdoc(7) arguments, too, stop bypassing the call to roff_getarg() in mdoc_argv.c, function args() for this case. This does not solve the case of escaped escape sequences in quoted .Bl -column phrases yet. Because roff_expand() can make the string longer, roff_getarg() can no longer operate in-place but needs to malloc(3) the returned string. In the high-level parsers, free(3) that string after processing it.
* Cleanup, no functional change:Ingo Schwarze2018-12-141-5/+3
| | | | | | | | | | Now that message handling is properly encapsulated, remove struct mparse pointers from four structs (roff, roff_man, tbl_node, eqn_node) and from the argument lists of five functions (roff_alloc, roff_man_alloc, mandoc_getarg, tbl_alloc, eqn_alloc). Except for being passed to the main program as an opaque object, it now only occurs in read.c, as it should, and not across 15 files like in the past.
* Major cleanup; may imply minor changes in edge cases of error reporting.Ingo Schwarze2018-12-141-5/+0
| | | | | | | | | | | Finally, drop support for the run-time configurable mandocmsg() callback. It was over-engineered from the start, never used for anything in a decade, and repeatedly caused maintenance headaches. Consolidate reporting infrastructure into two files, mandoc.h and mandoc_msg.c, mopping up the bits and pieces that were scattered around main.c, read.c, mandoc_parse.h, libmandoc.h, the prototypes of four parsing-related functions, and both parser structs.
* Rudimentary implementation of the roff(7) .while request.Ingo Schwarze2018-08-241-11/+22
| | | | | | | | | | | Needed for example by groff_hdtbl(7). There are two limitations: It does not support nested .while requests yet, and each .while loop must start and end in the same scope. The roff_parseln() return codes are now more flexible and allow OR'ing options.
* The upcoming .while request will have to re-execute roff(7) linesIngo Schwarze2018-08-231-2/+3
| | | | | | | parsed earlier, so they will have to be saved for reuse - but the read.c preparser does not know yet whether a line contains a .while request before passing it to the roff parser. To cope with that, save all parsed lines for now. Even shortens the code by 20 lines.
* Implement the roff(7) .shift and .return requests,Ingo Schwarze2018-08-231-1/+4
| | | | | | | | | | | | | | for example used by groff_hdtbl(7) and groff_mom(7). Also correctly interpolate arguments during nested macro execution even after .shift and .return, implemented using a stack of argument arrays. Note that only read.c, but not roff.c can detect the end of a macro execution, and the existence of .shift implies that arguments cannot be interpolated up front, so unfortunately, this includes a partial revert of roff.c rev. 1.337, moving argument interpolation back into the function roff_res().
* When accessing an undefined number register, define it to be zero, likeIngo Schwarze2018-04-091-1/+1
| | | | | | the previous commit for strings and macros, only technically simpler. Desired behaviour also mentioned by Werner Lemberg in 2011. This diff adds functionality but is -21 +19 LOC. :-)
* Simplify by creating struct roff_node syntax tree nodes for tbl(7)Ingo Schwarze2017-07-081-5/+1
| | | | | | | | | | | | right from roff_parseln() rather than delegating to read.c, similar to what i just did for eqn(7). The interface function roff_span() becomes obsolete and is deleted, the former interface function roff_addtbl() becomes static, the interface functions tbl_read() and tbl_cdata() become void, and minus twelve linus of code. No functional change.
* 1. Eliminate struct eqn, instead use the existing membersIngo Schwarze2017-07-081-3/+0
| | | | | | of struct roff_node which is allocated for each equation anyway. 2. Do not keep a list of equation parsers, one parser is enough. Minus fifty lines of code, no functional change.
* Style message about legacy man(7) date format in mdoc(7) documentsIngo Schwarze2017-06-111-1/+1
| | | | | and operating system dependent messages about missing or unexpected Mdocdate; inspired by mdoclint(1).
* Parser unification: use nice ohashes for all three request and macro tables;Ingo Schwarze2017-04-291-2/+0
| | | | no functional change, minus two source files, minus 200 lines of code.
* preconv_encode() can take a const input buffer;Ingo Schwarze2017-02-181-1/+1
| | | | diff from <christos at NetBSD>
* Be consistent in protecting __attribute__ attributes with __;Ingo Schwarze2017-02-171-1/+1
| | | | from Christos Zoulas <christos @ NetBSD>.
* Use __attribute__((__format__ throughout.Ingo Schwarze2016-07-191-4/+2
| | | | | | | Triggered by a smaller patch from Christos Zoulas. While here, unify style, move several config tests to config.h, and delete the useless MANDOC_CONFIG_H.
* update developer documentationIngo Schwarze2016-07-071-1/+0
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* In private header files, __BEGIN_DECLS and __END_DECLS are pointless.Ingo Schwarze2015-11-071-3/+0
| | | | | | | | | | | | Because these work slightly differently on different systems, they are becoming a maintenance burden in the portable version, so delete them. Besides, one of the chief design goals of the mandoc toolbox is to make sure that nothing related to documentation requires C++. Consequently, linking mandoc against any kind of C++ program would defeat the purpose and is not supported. I don't understand why kristaps@ added them in the first place.
* Major character table cleanup:Ingo Schwarze2015-10-131-2/+1
| | | | | | | | | | | | | * Use ohash(3) rather than a hand-rolled hash table. * Make the character table static in the chars.c module: There is no need to pass a pointer around, we most certainly never want to use two different character tables concurrently. * No need to keep the characters in a separate file chars.in; that merely encourages downstream porters to mess with them. * Sort the characters to agree with the mandoc_chars(7) manual page. * Specify Unicode codepoints in hex, not decimal (that's the detail that originally triggered this patch). No functional change, minus 100 LOC, and i don't see a performance change.
* Unify some node handling functions that use TOKEN_NONE.Ingo Schwarze2015-04-191-4/+0
| | | | | | | | * mdoc_word_alloc(), man_word_alloc() -> roff_word_alloc() * mdoc_word_append(), man_word_append() -> roff_word_append() * mdoc_addspan(), man_addspan() -> roff_addtbl() * mdoc_addeqn(), man_addeqn() -> roff_addeqn() Minus 50 lines of code, no functional change.
* Unify node handling functions:Ingo Schwarze2015-04-191-2/+0
| | | | | | | | | | | * node_alloc() for mdoc and man_node_alloc() -> roff_node_alloc() * node_append() for mdoc and man_node_append() -> roff_node_append() * mdoc_head_alloc() and man_head_alloc() -> roff_head_alloc() * mdoc_body_alloc() and man_body_alloc() -> roff_body_alloc() * mdoc_node_unlink() and man_node_unlink() -> roff_node_unlink() * mdoc_node_free() and man_node_free() -> roff_node_free() * mdoc_node_delete() and man_node_delete() -> roff_node_delete() Minus 130 lines of code, no functional change.
* Unify {mdoc,man}_{alloc,reset,free}() into roff_man_{alloc,reset,free}().Ingo Schwarze2015-04-181-8/+7
| | | | | Minus 80 lines of code, no functional change. Written on the train from Koeln to Wolfsburg returning from p2k15.
* Move mdoc_hash_init() and man_hash_init() to libmandoc.hIngo Schwarze2015-04-181-0/+2
| | | | | and call them from mparse_alloc() and choose_parser(), preparing unified allocation of struct roff_man.
* Replace the structs mdoc and man by a unified struct roff_man.Ingo Schwarze2015-04-181-19/+18
| | | | | Almost completely mechanical, no functional change. Written on the train from Exeter to London returning from p2k15.
* Fatal errors no longer exist.Ingo Schwarze2015-01-151-2/+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 with absolute path" from FATAL to ERROR;Ingo Schwarze2015-01-141-2/+1
| | | | allows to get rid of ROFF_ERR
* mdoc(7) already uses the mandoc(1) -Ios argument in the footer lineIngo Schwarze2014-12-281-1/+2
| | | | | | when .Os has no argument, so do the same for man(7) when .TH has less than four arguments; there is no reason to treat both differently. Issue found following a question from Thomas Klausner <wiz at NetBSD>.
* ISO C99 explicitly forbids forward references to enum types (6.7.2.3.3.);Ingo Schwarze2014-12-211-1/+0
| | | | patch from daniel@
* header cleanup:Ingo Schwarze2014-12-011-0/+5
| | | | | | * add missing forward declarations * remove needless header inclusions * some style unification
* remove unneccessary inclusion protection; patch from deraadt@Ingo Schwarze2014-12-011-4/+0
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* Simplify by making the eqn and tbl steering functions void;Ingo Schwarze2014-11-281-4/+4
| | | | no functional change, minus 15 lines of code.
* Use struct buf in libroff, it is very natural thereIngo Schwarze2014-11-011-2/+1
| | | | | | and reduces the number of arguments of many functions. While here, sprinkle some KNF. No functional change.
* Refactor, no functional change: Remove the parse point from struct buf.Ingo Schwarze2014-11-011-3/+3
| | | | | | Some functions need multiple parse points, some none at all, and it varies whether any of them need to be passed around. So better pass them as a separate argument, and only when needed.
* 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.
* integrate preconv(1) into mandoc(1);Ingo Schwarze2014-10-251-0/+9
| | | | enhances functionality and reduces code and docs by more than 300 lines
* Implement in-line equations, much needed by Xenocara manuals.Ingo Schwarze2014-10-161-6/+0
| | | | | | | | Put the steering into the roff parser rather than into the mdoc parser such that it works for all macro languages and on both text and macro lines. Line breaks and blank characters generated before and after in-line equations are not perfect yet, but let's do one thing at a time.
* Move main format autodetection from the parser dispatcher to theIngo Schwarze2014-09-061-0/+1
| | | | | | | | | | | roff parser where .Dd and .TH are already detected, anyway. This improves robustness because it correctly handles whitespace or an alternate control character before Dd. In the parser dispatcher, provide a fallback looking ahead in the input buffer instead of always assuming man(7). This corrects autodetection when Dd is preceded by other macros or macro-like handled requests like .ll. Triggered by reports from Daniel Levai about issues on Slackware Linux.
* 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
* KNF: case (FOO): -> case FOO:, remove /* LINTED */ and /* ARGSUSED */,Ingo Schwarze2014-04-201-10/+10
| | | | | remove trailing whitespace and blanks before tabs, improve some indenting; no functional change
* Generalize the mparse_alloc() and roff_alloc() functions by givingIngo Schwarze2014-03-191-2/+2
| | | | | | | | 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().
* Another 25% speedup for mandocdb(8) -Q mode, found with gprof(1).Ingo Schwarze2014-01-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | For /usr/share/man, we only need 56% of the time of makewhatis(8) now. In groff, user-defined macros clashing with mdoc(7) or man(7) standard macros are cleared when parsing the .Dd or .TH macro, respectively. Of course, we continue doing that in standard mode to assure full groff bug compatibility. However, in -Q mode, full groff bug compatibility makes no sense when it's unreasonably expensive, so skip this step in -Q mode. Real-world manuals hardly ever redefine standard macros, that's terrible style, and if they do, it's pointless to do so before .Dd or .TH because it has no effect. Even if someone does, it's extremely unlikely to break mandocdb(8) -Q parsing because we abort the parse sequence after the NAME section, anyway. So if you manually redefine .Sh, .Nm, .Nd, or .SH in a way that doesn't work at all and rely on .Dd or .TH to fix it up for you, your broken manual will no longer get a perfect apropos(1) entry until you re-run mandocdb(8) without -Q. It think that consequence is acceptable in order to get a 25% speedup for everyone else.
* Add an option -Q (quick) to mandocdb(8)Ingo Schwarze2014-01-051-2/+2
| | | | | | | | | | | | | | | 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.
* Tag functions with format strings as arguments as printf-like.Joerg Sonnenberger2014-01-051-0/+3
| | | | | Fix one case where a non-literal is used as format string. Fix another case where a variable is formatted using the wrong type.
* Simplify: Remove an unused argument from the mandoc_eos() function.Ingo Schwarze2013-12-311-1/+1
| | | | No functional change.
* The "value" argument to the roff(7) .nr requests ends right beforeIngo Schwarze2013-12-151-1/+1
| | | | | | | | the first non-digit character. While here, implement and document an optional sign, requesting increment or decrement, as documented in the Ossanna/Kernighan/Ritter troff manual and supported by groff. Reported by bentley@ on discuss@.
* Expand references to number registers in exactly the same way asIngo Schwarze2013-10-051-2/+2
| | | | | | | | | | references to user-defined strings. While here, make number registers signed int, like in groff. Inspired by NetBSD roff.c rev. 1.8 and read.c rev. 1.7 written by Christos Zoulas on March 21, 2013, but implemented in a completely different way, without hacking into read.c, where this functionality really doesn't belong.
* Support setting arbitrary roff(7) number registers,Ingo Schwarze2013-10-051-8/+3
| | | | | | | | | | | | | | preserving read support for the ".nr nS" SYNOPSIS state register. Inspired by NetBSD roff.c rev. 1.18 (Christos Zoulas, March 21, 2013), but implemented differently. I don't want to have yet another different implementation of a hash table in mandoc - it would be the second one in roff.c alone and the fifth one in mandoc grand total. Instead, i designed and implemented roff_setreg() and roff_getreg() to be similar to roff_setstrn() and roff_getstrn(). Once we feel the need to optimize, we can introduce one common hash table implementation for everything in mandoc.
* In groff, trying to redefine standard man(7) macros before .TH has no effect;Ingo Schwarze2012-11-191-2/+2
| | | | | | | | | | | | | | after .TH, it works. Trying to redefine standard mdoc(7) macros before .Dd works when calling groff with the -mdoc command line option, but does not when calling groff with -mandoc; after .Dd, it always works. Arguably, one might call that buggy behaviour in groff, but it is very unlikely that anybody will change groff in this respect (certainly, i'm not volunteering). So let's be bug-compatible. This fixes the vertical spacing in sox(1). Merging from OpenBSD libmandoc.h 1.18, read.c 1.8, roff.c 1.47, June 2, 2012.
* Add `cc' support.Kristaps Dzonsons2012-06-121-1/+2
| | | | | | | | | | | | | | | This was reported by espie@ and in the TODO. Caveat: `cc' has buggy behaviour when invoked in groff(1) and followed by a line-breaking control character macro, e.g., in a -man doc, .cc | .B foo 'B foo |cc 'B foo will cause groff(1) to behave properly for `.B' but inline the macro definition for `B' when invoked with the line-breaking macro.
* Support -Ios='OpenBSD 5.1' to override uname(3) as the source of theIngo Schwarze2012-05-271-1/+1
| | | | | | | | | | default value for the mdoc(7) .Os macro. Needed for man.cgi on the OpenBSD website. Problem with man.cgi first noticed by deraadt@; beck@ and deraadt@ agree with the way to solve the issue. "Please check them in and I'll look into them later!" kristaps@
* In man(7), when no explicit volume name is given, use the defaultIngo Schwarze2011-12-021-0/+1
| | | | | | | | | | | | volume name for the respective manual section, just like in mdoc(7). This gives us nicer page headers for cvs(1), lynx(1), tic(1), mkhybrid(8), and many curses(3) manuals. ok kristaps@ To not break compatibility, i wrote a corresponding patch for GNU troff which Werner Lemberg accepted upstream at rev. 1.65 of: http://cvs.savannah.gnu.org/viewvc/groff/tmac/an-old.tmac?root=groff
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