=================================================================== RCS file: /cvs/mandoc/mandoc.h,v retrieving revision 1.33 retrieving revision 1.261 diff -u -p -r1.33 -r1.261 --- mandoc/mandoc.h 2010/12/10 20:58:56 1.33 +++ mandoc/mandoc.h 2018/12/15 19:30:26 1.261 @@ -1,24 +1,26 @@ -/* $Id: mandoc.h,v 1.33 2010/12/10 20:58:56 schwarze Exp $ */ +/* $Id: mandoc.h,v 1.261 2018/12/15 19:30:26 schwarze Exp $ */ /* - * Copyright (c) 2010 Kristaps Dzonsons + * Copyright (c) 2010, 2011, 2014 Kristaps Dzonsons + * Copyright (c) 2012-2018 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Error handling, escape sequence, and character utilities. */ -#ifndef MANDOC_H -#define MANDOC_H #define ASCII_NBRSP 31 /* non-breaking space */ #define ASCII_HYPH 30 /* breakable hyphen */ +#define ASCII_BREAK 29 /* breakable zero-width space */ /* * Status level. This refers to both internal status (i.e., whilst @@ -28,10 +30,10 @@ */ enum mandoclevel { MANDOCLEVEL_OK = 0, - MANDOCLEVEL_RESERVED, + MANDOCLEVEL_STYLE, /* style suggestions */ MANDOCLEVEL_WARNING, /* warnings: syntax, whitespace, etc. */ MANDOCLEVEL_ERROR, /* input has been thrown away */ - MANDOCLEVEL_FATAL, /* input is borked */ + MANDOCLEVEL_UNSUPP, /* input needs unimplemented features */ MANDOCLEVEL_BADARG, /* bad argument in invocation */ MANDOCLEVEL_SYSERR, /* system error */ MANDOCLEVEL_MAX @@ -44,142 +46,244 @@ enum mandoclevel { enum mandocerr { MANDOCERR_OK, + MANDOCERR_BASE, /* ===== start of base system conventions ===== */ + + MANDOCERR_MDOCDATE, /* Mdocdate found: Dd ... */ + MANDOCERR_MDOCDATE_MISSING, /* Mdocdate missing: Dd ... */ + MANDOCERR_ARCH_BAD, /* unknown architecture: Dt ... arch */ + MANDOCERR_OS_ARG, /* operating system explicitly specified: Os ... */ + MANDOCERR_RCS_MISSING, /* RCS id missing */ + MANDOCERR_XR_BAD, /* referenced manual not found: Xr name sec */ + + MANDOCERR_STYLE, /* ===== start of style suggestions ===== */ + + MANDOCERR_DATE_LEGACY, /* legacy man(7) date format: Dd ... */ + MANDOCERR_DATE_NORM, /* normalizing date format to: ... */ + MANDOCERR_TITLE_CASE, /* lower case character in document title */ + MANDOCERR_RCS_REP, /* duplicate RCS id: ... */ + MANDOCERR_SEC_TYPO, /* possible typo in section name: Sh ... */ + MANDOCERR_ARG_QUOTE, /* unterminated quoted argument */ + MANDOCERR_MACRO_USELESS, /* useless macro: macro */ + MANDOCERR_BX, /* consider using OS macro: macro */ + MANDOCERR_ER_ORDER, /* errnos out of order: Er ... */ + MANDOCERR_ER_REP, /* duplicate errno: Er ... */ + MANDOCERR_DELIM, /* trailing delimiter: macro ... */ + MANDOCERR_DELIM_NB, /* no blank before trailing delimiter: macro ... */ + MANDOCERR_FI_SKIP, /* fill mode already enabled, skipping: fi */ + MANDOCERR_NF_SKIP, /* fill mode already disabled, skipping: nf */ + MANDOCERR_DASHDASH, /* verbatim "--", maybe consider using \(em */ + MANDOCERR_FUNC, /* function name without markup: name() */ + MANDOCERR_SPACE_EOL, /* whitespace at end of input line */ + MANDOCERR_COMMENT_BAD, /* bad comment style */ + MANDOCERR_WARNING, /* ===== start of warnings ===== */ /* related to the prologue */ - MANDOCERR_NOTITLE, /* no title in document */ - MANDOCERR_UPPERCASE, /* document title should be all caps */ - MANDOCERR_BADMSEC, /* unknown manual section */ - MANDOCERR_BADDATE, /* cannot parse date argument */ - MANDOCERR_PROLOGOOO, /* prologue macros out of order */ - MANDOCERR_PROLOGREP, /* duplicate prologue macro */ - MANDOCERR_BADPROLOG, /* macro not allowed in prologue */ - MANDOCERR_BADBODY, /* macro not allowed in body */ + MANDOCERR_DT_NOTITLE, /* missing manual title, using UNTITLED: line */ + MANDOCERR_TH_NOTITLE, /* missing manual title, using "": [macro] */ + MANDOCERR_MSEC_MISSING, /* missing manual section, using "": macro */ + MANDOCERR_MSEC_BAD, /* unknown manual section: Dt ... section */ + MANDOCERR_DATE_MISSING, /* missing date, using today's date */ + MANDOCERR_DATE_BAD, /* cannot parse date, using it verbatim: date */ + MANDOCERR_DATE_FUTURE, /* date in the future, using it anyway: date */ + MANDOCERR_OS_MISSING, /* missing Os macro, using "" */ + MANDOCERR_PROLOG_LATE, /* late prologue macro: macro */ + MANDOCERR_PROLOG_ORDER, /* prologue macros out of order: macros */ /* related to document structure */ - MANDOCERR_SO, /* .so is fragile, better use ln(1) */ - MANDOCERR_NAMESECFIRST, /* NAME section must come first */ - MANDOCERR_BADNAMESEC, /* bad NAME section contents */ - MANDOCERR_NONAME, /* manual name not yet set */ - MANDOCERR_SECOOO, /* sections out of conventional order */ - MANDOCERR_SECREP, /* duplicate section name */ - MANDOCERR_SECMSEC, /* section not in conventional manual section */ + MANDOCERR_SO, /* .so is fragile, better use ln(1): so path */ + MANDOCERR_DOC_EMPTY, /* no document body */ + MANDOCERR_SEC_BEFORE, /* content before first section header: macro */ + MANDOCERR_NAMESEC_FIRST, /* first section is not NAME: Sh title */ + MANDOCERR_NAMESEC_NONM, /* NAME section without Nm before Nd */ + MANDOCERR_NAMESEC_NOND, /* NAME section without description */ + MANDOCERR_NAMESEC_ND, /* description not at the end of NAME */ + MANDOCERR_NAMESEC_BAD, /* bad NAME section content: macro */ + MANDOCERR_NAMESEC_PUNCT, /* missing comma before name: Nm name */ + MANDOCERR_ND_EMPTY, /* missing description line, using "" */ + MANDOCERR_ND_LATE, /* description line outside NAME section */ + MANDOCERR_SEC_ORDER, /* sections out of conventional order: Sh title */ + MANDOCERR_SEC_REP, /* duplicate section title: Sh title */ + MANDOCERR_SEC_MSEC, /* unexpected section: Sh title for ... only */ + MANDOCERR_XR_SELF, /* cross reference to self: Xr name sec */ + MANDOCERR_XR_ORDER, /* unusual Xr order: ... after ... */ + MANDOCERR_XR_PUNCT, /* unusual Xr punctuation: ... after ... */ + MANDOCERR_AN_MISSING, /* AUTHORS section without An macro */ /* related to macros and nesting */ - MANDOCERR_MACROOBS, /* skipping obsolete macro */ - MANDOCERR_IGNPAR, /* skipping paragraph macro */ - MANDOCERR_SCOPENEST, /* blocks badly nested */ - MANDOCERR_CHILD, /* child violates parent syntax */ - MANDOCERR_NESTEDDISP, /* nested displays are not portable */ - MANDOCERR_SCOPEREP, /* already in literal mode */ + MANDOCERR_MACRO_OBS, /* obsolete macro: macro */ + MANDOCERR_MACRO_CALL, /* macro neither callable nor escaped: macro */ + MANDOCERR_PAR_SKIP, /* skipping paragraph macro: macro ... */ + MANDOCERR_PAR_MOVE, /* moving paragraph macro out of list: macro */ + MANDOCERR_NS_SKIP, /* skipping no-space macro */ + MANDOCERR_BLK_NEST, /* blocks badly nested: macro ... */ + MANDOCERR_BD_NEST, /* nested displays are not portable: macro ... */ + MANDOCERR_BL_MOVE, /* moving content out of list: macro */ + MANDOCERR_TA_LINE, /* first macro on line: Ta */ + MANDOCERR_BLK_LINE, /* line scope broken: macro breaks macro */ + MANDOCERR_BLK_BLANK, /* skipping blank line in line scope */ - /* related to missing macro arguments */ - MANDOCERR_MACROEMPTY, /* skipping empty macro */ - MANDOCERR_DISPTYPE, /* missing display type */ - MANDOCERR_LISTFIRST, /* list type must come first */ - MANDOCERR_NOWIDTHARG, /* tag lists require a width argument */ - MANDOCERR_FONTTYPE, /* missing font type */ + /* related to missing arguments */ + MANDOCERR_REQ_EMPTY, /* skipping empty request: request */ + MANDOCERR_COND_EMPTY, /* conditional request controls empty scope */ + MANDOCERR_MACRO_EMPTY, /* skipping empty macro: macro */ + MANDOCERR_BLK_EMPTY, /* empty block: macro */ + MANDOCERR_ARG_EMPTY, /* empty argument, using 0n: macro arg */ + MANDOCERR_BD_NOTYPE, /* missing display type, using -ragged: Bd */ + MANDOCERR_BL_LATETYPE, /* list type is not the first argument: Bl arg */ + MANDOCERR_BL_NOWIDTH, /* missing -width in -tag list, using 6n */ + MANDOCERR_EX_NONAME, /* missing utility name, using "": Ex */ + MANDOCERR_FO_NOHEAD, /* missing function name, using "": Fo */ + MANDOCERR_IT_NOHEAD, /* empty head in list item: Bl -type It */ + MANDOCERR_IT_NOBODY, /* empty list item: Bl -type It */ + MANDOCERR_IT_NOARG, /* missing argument, using next line: Bl -c It */ + MANDOCERR_BF_NOFONT, /* missing font type, using \fR: Bf */ + MANDOCERR_BF_BADFONT, /* unknown font type, using \fR: Bf font */ + MANDOCERR_PF_SKIP, /* nothing follows prefix: Pf arg */ + MANDOCERR_RS_EMPTY, /* empty reference block: Rs */ + MANDOCERR_XR_NOSEC, /* missing section argument: Xr arg */ + MANDOCERR_ARG_STD, /* missing -std argument, adding it: macro */ + MANDOCERR_OP_EMPTY, /* missing option string, using "": OP */ + MANDOCERR_UR_NOHEAD, /* missing resource identifier, using "": UR */ + MANDOCERR_EQN_NOBOX, /* missing eqn box, using "": op */ - /* related to bad macro arguments */ - MANDOCERR_IGNARGV, /* skipping argument */ - MANDOCERR_ARGVREP, /* duplicate argument */ - MANDOCERR_DISPREP, /* duplicate display type */ - MANDOCERR_LISTREP, /* duplicate list type */ - MANDOCERR_BADATT, /* unknown AT&T UNIX version */ - MANDOCERR_BADBOOL, /* bad Boolean value */ - MANDOCERR_BADFONT, /* unknown font */ - MANDOCERR_BADSTANDARD, /* unknown standard specifier */ - MANDOCERR_BADWIDTH, /* bad width argument */ + /* related to bad arguments */ + MANDOCERR_ARG_REP, /* duplicate argument: macro arg */ + MANDOCERR_AN_REP, /* skipping duplicate argument: An -arg */ + MANDOCERR_BD_REP, /* skipping duplicate display type: Bd -type */ + MANDOCERR_BL_REP, /* skipping duplicate list type: Bl -type */ + MANDOCERR_BL_SKIPW, /* skipping -width argument: Bl -type */ + MANDOCERR_BL_COL, /* wrong number of cells */ + MANDOCERR_AT_BAD, /* unknown AT&T UNIX version: At version */ + MANDOCERR_FA_COMMA, /* comma in function argument: arg */ + MANDOCERR_FN_PAREN, /* parenthesis in function name: arg */ + MANDOCERR_LB_BAD, /* unknown library name: Lb ... */ + MANDOCERR_RS_BAD, /* invalid content in Rs block: macro */ + MANDOCERR_SM_BAD, /* invalid Boolean argument: macro arg */ + MANDOCERR_CHAR_FONT, /* argument contains two font escapes */ + MANDOCERR_FT_BAD, /* unknown font, skipping request: ft font */ + MANDOCERR_TR_ODD, /* odd number of characters in request: tr char */ /* related to plain text */ - MANDOCERR_NOBLANKLN, /* blank line in non-literal context */ - MANDOCERR_BADTAB, /* tab in non-literal context */ - MANDOCERR_EOLNSPACE, /* end of line whitespace */ - MANDOCERR_BADCOMMENT, /* bad comment style */ - MANDOCERR_BADESCAPE, /* unknown escape sequence */ - MANDOCERR_BADQUOTE, /* unterminated quoted string */ + MANDOCERR_FI_BLANK, /* blank line in fill mode, using .sp */ + MANDOCERR_FI_TAB, /* tab in filled text */ + MANDOCERR_EOS, /* new sentence, new line */ + MANDOCERR_ESC_BAD, /* invalid escape sequence: esc */ + MANDOCERR_ESC_UNDEF, /* undefined escape, printing literally: char */ + MANDOCERR_STR_UNDEF, /* undefined string, using "": name */ + /* related to tables */ + MANDOCERR_TBLLAYOUT_SPAN, /* tbl line starts with span */ + MANDOCERR_TBLLAYOUT_DOWN, /* tbl column starts with span */ + MANDOCERR_TBLLAYOUT_VERT, /* skipping vertical bar in tbl layout */ + MANDOCERR_ERROR, /* ===== start of errors ===== */ + /* related to tables */ + MANDOCERR_TBLOPT_ALPHA, /* non-alphabetic character in tbl options */ + MANDOCERR_TBLOPT_BAD, /* skipping unknown tbl option: option */ + MANDOCERR_TBLOPT_NOARG, /* missing tbl option argument: option */ + MANDOCERR_TBLOPT_ARGSZ, /* wrong tbl option argument size: option */ + MANDOCERR_TBLLAYOUT_NONE, /* empty tbl layout */ + MANDOCERR_TBLLAYOUT_CHAR, /* invalid character in tbl layout: char */ + MANDOCERR_TBLLAYOUT_PAR, /* unmatched parenthesis in tbl layout */ + MANDOCERR_TBLDATA_NONE, /* tbl without any data cells */ + MANDOCERR_TBLDATA_SPAN, /* ignoring data in spanned tbl cell: data */ + MANDOCERR_TBLDATA_EXTRA, /* ignoring extra tbl data cells: data */ + MANDOCERR_TBLDATA_BLK, /* data block open at end of tbl: macro */ + + /* related to document structure and macros */ + MANDOCERR_FILE, /* cannot open file */ + MANDOCERR_PROLOG_REP, /* duplicate prologue macro: macro */ + MANDOCERR_DT_LATE, /* skipping late title macro: Dt args */ MANDOCERR_ROFFLOOP, /* input stack limit exceeded, infinite loop? */ - MANDOCERR_BADCHAR, /* skipping bad character */ - MANDOCERR_NOTEXT, /* skipping text before the first section header */ - MANDOCERR_MACRO, /* skipping unknown macro */ - MANDOCERR_REQUEST, /* NOT IMPLEMENTED: skipping request */ - MANDOCERR_LINESCOPE, /* line scope broken */ - MANDOCERR_ARGCOUNT, /* argument count wrong */ - MANDOCERR_NOSCOPE, /* skipping end of block that is not open */ - MANDOCERR_SCOPEBROKEN, /* missing end of block */ - MANDOCERR_SCOPEEXIT, /* scope open on exit */ - MANDOCERR_UNAME, /* uname(3) system call failed */ - /* FIXME: merge following with MANDOCERR_ARGCOUNT */ - MANDOCERR_NOARGS, /* macro requires line argument(s) */ - MANDOCERR_NOBODY, /* macro requires body argument(s) */ - MANDOCERR_NOARGV, /* macro requires argument(s) */ - MANDOCERR_LISTTYPE, /* missing list type */ - MANDOCERR_ARGSLOST, /* line argument(s) will be lost */ - MANDOCERR_BODYLOST, /* body argument(s) will be lost */ + MANDOCERR_CHAR_BAD, /* skipping bad character: number */ + MANDOCERR_MACRO, /* skipping unknown macro: macro */ + MANDOCERR_REQ_NOMAC, /* skipping request outside macro: ... */ + MANDOCERR_REQ_INSEC, /* skipping insecure request: request */ + MANDOCERR_IT_STRAY, /* skipping item outside list: It ... */ + MANDOCERR_TA_STRAY, /* skipping column outside column list: Ta */ + MANDOCERR_BLK_NOTOPEN, /* skipping end of block that is not open */ + MANDOCERR_RE_NOTOPEN, /* fewer RS blocks open, skipping: RE arg */ + MANDOCERR_BLK_BROKEN, /* inserting missing end of block: macro ... */ + MANDOCERR_BLK_NOEND, /* appending missing end of block: macro */ - MANDOCERR_FATAL, /* ===== start of fatal errors ===== */ + /* related to request and macro arguments */ + MANDOCERR_NAMESC, /* escaped character not allowed in a name: name */ + MANDOCERR_ARG_UNDEF, /* using macro argument outside macro */ + MANDOCERR_ARG_NONUM, /* argument number is not numeric */ + MANDOCERR_BD_FILE, /* NOT IMPLEMENTED: Bd -file */ + MANDOCERR_BD_NOARG, /* skipping display without arguments: Bd */ + MANDOCERR_BL_NOTYPE, /* missing list type, using -item: Bl */ + MANDOCERR_CE_NONUM, /* argument is not numeric, using 1: ce ... */ + MANDOCERR_CHAR_ARG, /* argument is not a character: char ... */ + MANDOCERR_NM_NONAME, /* missing manual name, using "": Nm */ + MANDOCERR_OS_UNAME, /* uname(3) system call failed, using UNKNOWN */ + MANDOCERR_ST_BAD, /* unknown standard specifier: St standard */ + MANDOCERR_IT_NONUM, /* skipping request without numeric argument */ + MANDOCERR_SHIFT, /* excessive shift: ..., but max is ... */ + MANDOCERR_SO_PATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */ + MANDOCERR_SO_FAIL, /* .so request failed */ + MANDOCERR_ARG_SKIP, /* skipping all arguments: macro args */ + MANDOCERR_ARG_EXCESS, /* skipping excess arguments: macro ... args */ + MANDOCERR_DIVZERO, /* divide by zero */ - MANDOCERR_COLUMNS, /* column syntax is inconsistent */ - MANDOCERR_BADDISP, /* NOT IMPLEMENTED: .Bd -file */ - MANDOCERR_SYNTLINESCOPE, /* line scope broken, syntax violated */ - MANDOCERR_SYNTARGVCOUNT, /* argument count wrong, violates syntax */ - MANDOCERR_SYNTCHILD, /* child violates parent syntax */ - MANDOCERR_SYNTARGCOUNT, /* argument count wrong, violates syntax */ - MANDOCERR_SOPATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */ - MANDOCERR_NODOCBODY, /* no document body */ - MANDOCERR_NODOCPROLOG, /* no document prologue */ - MANDOCERR_MEM, /* static buffer exhausted */ - MANDOCERR_MAX -}; + MANDOCERR_UNSUPP, /* ===== start of unsupported features ===== */ -/* - * Available registers (set in libroff, accessed elsewhere). - */ -enum regs { - REG_nS = 0, - REG__MAX -}; + MANDOCERR_TOOLARGE, /* input too large */ + MANDOCERR_CHAR_UNSUPP, /* unsupported control character: number */ + MANDOCERR_ESC_UNSUPP, /* unsupported escape sequence: escape */ + MANDOCERR_REQ_UNSUPP, /* unsupported roff request: request */ + MANDOCERR_WHILE_NEST, /* nested .while loops */ + MANDOCERR_WHILE_OUTOF, /* end of scope with open .while loop */ + MANDOCERR_WHILE_INTO, /* end of .while loop in inner scope */ + MANDOCERR_WHILE_FAIL, /* cannot continue this .while loop */ + MANDOCERR_TBLOPT_EQN, /* eqn delim option in tbl: arg */ + MANDOCERR_TBLLAYOUT_MOD, /* unsupported tbl layout modifier: m */ + MANDOCERR_TBLMACRO, /* ignoring macro in table: macro */ -/* - * A register (struct reg) can consist of many types: this consists of - * normalised types from the original string form. - */ -union regval { - unsigned u; /* unsigned integer */ + MANDOCERR_MAX }; -/* - * A single register entity. If "set" is zero, the value of the - * register should be the default one, which is per-register. It's - * assumed that callers know which type in "v" corresponds to which - * register value. - */ -struct reg { - int set; /* whether set or not */ - union regval v; /* parsed data */ +enum mandoc_esc { + ESCAPE_ERROR = 0, /* bail! unparsable escape */ + ESCAPE_UNSUPP, /* unsupported escape; ignore it */ + ESCAPE_IGNORE, /* escape to be ignored */ + ESCAPE_UNDEF, /* undefined escape; print literal character */ + ESCAPE_SPECIAL, /* a regular special character */ + ESCAPE_FONT, /* a generic font mode */ + ESCAPE_FONTBOLD, /* bold font mode */ + ESCAPE_FONTITALIC, /* italic font mode */ + ESCAPE_FONTBI, /* bold italic font mode */ + ESCAPE_FONTROMAN, /* roman font mode */ + ESCAPE_FONTCW, /* constant width font mode */ + ESCAPE_FONTPREV, /* previous font mode */ + ESCAPE_NUMBERED, /* a numbered glyph */ + ESCAPE_UNICODE, /* a unicode codepoint */ + ESCAPE_DEVICE, /* print the output device name */ + ESCAPE_BREAK, /* break the output line */ + ESCAPE_NOSPACE, /* suppress space if the last on a line */ + ESCAPE_HORIZ, /* horizontal movement */ + ESCAPE_HLINE, /* horizontal line drawing */ + ESCAPE_SKIPCHAR, /* skip the next character */ + ESCAPE_OVERSTRIKE /* overstrike all chars in the argument */ }; -/* - * The primary interface to setting register values is in libroff, - * although libmdoc and libman from time to time will manipulate - * registers (such as `.Sh SYNOPSIS' enabling REG_nS). - */ -struct regset { - struct reg regs[REG__MAX]; -}; -__BEGIN_DECLS - -/* - * Callback function for warnings, errors, and fatal errors as they - * occur in the compilers libroff, libmdoc, and libman. - */ -typedef int (*mandocmsg)(enum mandocerr, void *, - int, int, const char *); - -__END_DECLS - -#endif /*!MANDOC_H*/ +enum mandoc_esc mandoc_escape(const char **, const char **, int *); +void mandoc_msg_setoutfile(FILE *); +const char *mandoc_msg_getinfilename(void); +void mandoc_msg_setinfilename(const char *); +enum mandocerr mandoc_msg_getmin(void); +void mandoc_msg_setmin(enum mandocerr); +enum mandoclevel mandoc_msg_getrc(void); +void mandoc_msg_setrc(enum mandoclevel); +void mandoc_msg(enum mandocerr, int, int, const char *, ...) + __attribute__((__format__ (__printf__, 4, 5))); +void mchars_alloc(void); +void mchars_free(void); +int mchars_num2char(const char *, size_t); +const char *mchars_uc2str(int); +int mchars_num2uc(const char *, size_t); +int mchars_spec2cp(const char *, size_t); +const char *mchars_spec2str(const char *, size_t, size_t *);