1 /* $OpenBSD: mandoc.h,v 1.211 2020/09/01 18:24:09 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2012-2020 Ingo Schwarze <schwarze@openbsd.org> 4 * Copyright (c) 2010, 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 * 18 * Error handling, escape sequence, and character utilities. 19 * Can be used by all code in the mandoc package. 20 */ 21 22 #define ASCII_NBRSP 31 /* non-breaking space */ 23 #define ASCII_HYPH 30 /* breakable hyphen */ 24 #define ASCII_BREAK 29 /* breakable zero-width space */ 25 26 /* 27 * Status level. This refers to both internal status (i.e., whilst 28 * running, when warnings/errors are reported) and an indicator of a 29 * threshold of when to halt (when said internal state exceeds the 30 * threshold). 31 */ 32 enum mandoclevel { 33 MANDOCLEVEL_OK = 0, 34 MANDOCLEVEL_STYLE, /* style suggestions */ 35 MANDOCLEVEL_WARNING, /* warnings: syntax, whitespace, etc. */ 36 MANDOCLEVEL_ERROR, /* input has been thrown away */ 37 MANDOCLEVEL_UNSUPP, /* input needs unimplemented features */ 38 MANDOCLEVEL_BADARG, /* bad argument in invocation */ 39 MANDOCLEVEL_SYSERR, /* system error */ 40 MANDOCLEVEL_MAX 41 }; 42 43 /* 44 * All possible things that can go wrong within a parse, be it libroff, 45 * libmdoc, or libman. 46 */ 47 enum mandocerr { 48 MANDOCERR_OK, 49 50 MANDOCERR_BASE, /* ===== start of base system conventions ===== */ 51 52 MANDOCERR_MDOCDATE, /* Mdocdate found: Dd ... */ 53 MANDOCERR_MDOCDATE_MISSING, /* Mdocdate missing: Dd ... */ 54 MANDOCERR_ARCH_BAD, /* unknown architecture: Dt ... arch */ 55 MANDOCERR_OS_ARG, /* operating system explicitly specified: Os ... */ 56 MANDOCERR_RCS_MISSING, /* RCS id missing */ 57 MANDOCERR_XR_BAD, /* referenced manual not found: Xr name sec */ 58 59 MANDOCERR_STYLE, /* ===== start of style suggestions ===== */ 60 61 MANDOCERR_DATE_LEGACY, /* legacy man(7) date format: Dd ... */ 62 MANDOCERR_DATE_NORM, /* normalizing date format to: ... */ 63 MANDOCERR_TITLE_CASE, /* lower case character in document title */ 64 MANDOCERR_RCS_REP, /* duplicate RCS id: ... */ 65 MANDOCERR_SEC_TYPO, /* possible typo in section name: Sh ... */ 66 MANDOCERR_ARG_QUOTE, /* unterminated quoted argument */ 67 MANDOCERR_MACRO_USELESS, /* useless macro: macro */ 68 MANDOCERR_BX, /* consider using OS macro: macro */ 69 MANDOCERR_ER_ORDER, /* errnos out of order: Er ... */ 70 MANDOCERR_ER_REP, /* duplicate errno: Er ... */ 71 MANDOCERR_DELIM, /* trailing delimiter: macro ... */ 72 MANDOCERR_DELIM_NB, /* no blank before trailing delimiter: macro ... */ 73 MANDOCERR_FI_SKIP, /* fill mode already enabled, skipping: fi */ 74 MANDOCERR_NF_SKIP, /* fill mode already disabled, skipping: nf */ 75 MANDOCERR_DASHDASH, /* verbatim "--", maybe consider using \(em */ 76 MANDOCERR_FUNC, /* function name without markup: name() */ 77 MANDOCERR_SPACE_EOL, /* whitespace at end of input line */ 78 MANDOCERR_COMMENT_BAD, /* bad comment style */ 79 80 MANDOCERR_WARNING, /* ===== start of warnings ===== */ 81 82 /* related to the prologue */ 83 MANDOCERR_DT_NOTITLE, /* missing manual title, using UNTITLED: line */ 84 MANDOCERR_TH_NOTITLE, /* missing manual title, using "": [macro] */ 85 MANDOCERR_MSEC_MISSING, /* missing manual section, using "": macro */ 86 MANDOCERR_MSEC_BAD, /* unknown manual section: Dt ... section */ 87 MANDOCERR_MSEC_FILE, /* filename/section mismatch: ... */ 88 MANDOCERR_DATE_MISSING, /* missing date, using "": [macro] */ 89 MANDOCERR_DATE_BAD, /* cannot parse date, using it verbatim: date */ 90 MANDOCERR_DATE_FUTURE, /* date in the future, using it anyway: date */ 91 MANDOCERR_OS_MISSING, /* missing Os macro, using "" */ 92 MANDOCERR_PROLOG_LATE, /* late prologue macro: macro */ 93 MANDOCERR_PROLOG_ORDER, /* prologue macros out of order: macros */ 94 95 /* related to document structure */ 96 MANDOCERR_SO, /* .so is fragile, better use ln(1): so path */ 97 MANDOCERR_DOC_EMPTY, /* no document body */ 98 MANDOCERR_SEC_BEFORE, /* content before first section header: macro */ 99 MANDOCERR_NAMESEC_FIRST, /* first section is not NAME: Sh title */ 100 MANDOCERR_NAMESEC_NONM, /* NAME section without Nm before Nd */ 101 MANDOCERR_NAMESEC_NOND, /* NAME section without description */ 102 MANDOCERR_NAMESEC_ND, /* description not at the end of NAME */ 103 MANDOCERR_NAMESEC_BAD, /* bad NAME section content: macro */ 104 MANDOCERR_NAMESEC_PUNCT, /* missing comma before name: Nm name */ 105 MANDOCERR_ND_EMPTY, /* missing description line, using "" */ 106 MANDOCERR_ND_LATE, /* description line outside NAME section */ 107 MANDOCERR_SEC_ORDER, /* sections out of conventional order: Sh title */ 108 MANDOCERR_SEC_REP, /* duplicate section title: Sh title */ 109 MANDOCERR_SEC_MSEC, /* unexpected section: Sh title for ... only */ 110 MANDOCERR_XR_SELF, /* cross reference to self: Xr name sec */ 111 MANDOCERR_XR_ORDER, /* unusual Xr order: ... after ... */ 112 MANDOCERR_XR_PUNCT, /* unusual Xr punctuation: ... after ... */ 113 MANDOCERR_AN_MISSING, /* AUTHORS section without An macro */ 114 115 /* related to macros and nesting */ 116 MANDOCERR_MACRO_OBS, /* obsolete macro: macro */ 117 MANDOCERR_MACRO_CALL, /* macro neither callable nor escaped: macro */ 118 MANDOCERR_PAR_SKIP, /* skipping paragraph macro: macro ... */ 119 MANDOCERR_PAR_MOVE, /* moving paragraph macro out of list: macro */ 120 MANDOCERR_NS_SKIP, /* skipping no-space macro */ 121 MANDOCERR_BLK_NEST, /* blocks badly nested: macro ... */ 122 MANDOCERR_BD_NEST, /* nested displays are not portable: macro ... */ 123 MANDOCERR_BL_MOVE, /* moving content out of list: macro */ 124 MANDOCERR_TA_LINE, /* first macro on line: Ta */ 125 MANDOCERR_BLK_LINE, /* line scope broken: macro breaks macro */ 126 MANDOCERR_BLK_BLANK, /* skipping blank line in line scope */ 127 128 /* related to missing arguments */ 129 MANDOCERR_REQ_EMPTY, /* skipping empty request: request */ 130 MANDOCERR_COND_EMPTY, /* conditional request controls empty scope */ 131 MANDOCERR_MACRO_EMPTY, /* skipping empty macro: macro */ 132 MANDOCERR_BLK_EMPTY, /* empty block: macro */ 133 MANDOCERR_ARG_EMPTY, /* empty argument, using 0n: macro arg */ 134 MANDOCERR_BD_NOTYPE, /* missing display type, using -ragged: Bd */ 135 MANDOCERR_BL_LATETYPE, /* list type is not the first argument: Bl arg */ 136 MANDOCERR_BL_NOWIDTH, /* missing -width in -tag list, using 6n */ 137 MANDOCERR_EX_NONAME, /* missing utility name, using "": Ex */ 138 MANDOCERR_FO_NOHEAD, /* missing function name, using "": Fo */ 139 MANDOCERR_IT_NOHEAD, /* empty head in list item: Bl -type It */ 140 MANDOCERR_IT_NOBODY, /* empty list item: Bl -type It */ 141 MANDOCERR_IT_NOARG, /* missing argument, using next line: Bl -c It */ 142 MANDOCERR_BF_NOFONT, /* missing font type, using \fR: Bf */ 143 MANDOCERR_BF_BADFONT, /* unknown font type, using \fR: Bf font */ 144 MANDOCERR_PF_SKIP, /* nothing follows prefix: Pf arg */ 145 MANDOCERR_RS_EMPTY, /* empty reference block: Rs */ 146 MANDOCERR_XR_NOSEC, /* missing section argument: Xr arg */ 147 MANDOCERR_ARG_STD, /* missing -std argument, adding it: macro */ 148 MANDOCERR_OP_EMPTY, /* missing option string, using "": OP */ 149 MANDOCERR_UR_NOHEAD, /* missing resource identifier, using "": UR */ 150 MANDOCERR_EQN_NOBOX, /* missing eqn box, using "": op */ 151 152 /* related to bad arguments */ 153 MANDOCERR_ARG_REP, /* duplicate argument: macro arg */ 154 MANDOCERR_AN_REP, /* skipping duplicate argument: An -arg */ 155 MANDOCERR_BD_REP, /* skipping duplicate display type: Bd -type */ 156 MANDOCERR_BL_REP, /* skipping duplicate list type: Bl -type */ 157 MANDOCERR_BL_SKIPW, /* skipping -width argument: Bl -type */ 158 MANDOCERR_BL_COL, /* wrong number of cells */ 159 MANDOCERR_AT_BAD, /* unknown AT&T UNIX version: At version */ 160 MANDOCERR_FA_COMMA, /* comma in function argument: arg */ 161 MANDOCERR_FN_PAREN, /* parenthesis in function name: arg */ 162 MANDOCERR_LB_BAD, /* unknown library name: Lb ... */ 163 MANDOCERR_RS_BAD, /* invalid content in Rs block: macro */ 164 MANDOCERR_SM_BAD, /* invalid Boolean argument: macro arg */ 165 MANDOCERR_CHAR_FONT, /* argument contains two font escapes */ 166 MANDOCERR_FT_BAD, /* unknown font, skipping request: ft font */ 167 MANDOCERR_TR_ODD, /* odd number of characters in request: tr char */ 168 169 /* related to plain text */ 170 MANDOCERR_FI_BLANK, /* blank line in fill mode, using .sp */ 171 MANDOCERR_FI_TAB, /* tab in filled text */ 172 MANDOCERR_EOS, /* new sentence, new line */ 173 MANDOCERR_ESC_BAD, /* invalid escape sequence: esc */ 174 MANDOCERR_ESC_UNDEF, /* undefined escape, printing literally: char */ 175 MANDOCERR_STR_UNDEF, /* undefined string, using "": name */ 176 177 /* related to tables */ 178 MANDOCERR_TBLLAYOUT_SPAN, /* tbl line starts with span */ 179 MANDOCERR_TBLLAYOUT_DOWN, /* tbl column starts with span */ 180 MANDOCERR_TBLLAYOUT_VERT, /* skipping vertical bar in tbl layout */ 181 182 MANDOCERR_ERROR, /* ===== start of errors ===== */ 183 184 /* related to tables */ 185 MANDOCERR_TBLOPT_ALPHA, /* non-alphabetic character in tbl options */ 186 MANDOCERR_TBLOPT_BAD, /* skipping unknown tbl option: option */ 187 MANDOCERR_TBLOPT_NOARG, /* missing tbl option argument: option */ 188 MANDOCERR_TBLOPT_ARGSZ, /* wrong tbl option argument size: option */ 189 MANDOCERR_TBLLAYOUT_NONE, /* empty tbl layout */ 190 MANDOCERR_TBLLAYOUT_CHAR, /* invalid character in tbl layout: char */ 191 MANDOCERR_TBLLAYOUT_PAR, /* unmatched parenthesis in tbl layout */ 192 MANDOCERR_TBLLAYOUT_SPC, /* ignoring excessive spacing in tbl layout */ 193 MANDOCERR_TBLDATA_NONE, /* tbl without any data cells */ 194 MANDOCERR_TBLDATA_SPAN, /* ignoring data in spanned tbl cell: data */ 195 MANDOCERR_TBLDATA_EXTRA, /* ignoring extra tbl data cells: data */ 196 MANDOCERR_TBLDATA_BLK, /* data block open at end of tbl: macro */ 197 198 /* related to document structure and macros */ 199 MANDOCERR_PROLOG_REP, /* duplicate prologue macro: macro */ 200 MANDOCERR_DT_LATE, /* skipping late title macro: Dt args */ 201 MANDOCERR_ROFFLOOP, /* input stack limit exceeded, infinite loop? */ 202 MANDOCERR_CHAR_BAD, /* skipping bad character: number */ 203 MANDOCERR_MACRO, /* skipping unknown macro: macro */ 204 MANDOCERR_REQ_NOMAC, /* skipping request outside macro: ... */ 205 MANDOCERR_REQ_INSEC, /* skipping insecure request: request */ 206 MANDOCERR_IT_STRAY, /* skipping item outside list: It ... */ 207 MANDOCERR_TA_STRAY, /* skipping column outside column list: Ta */ 208 MANDOCERR_BLK_NOTOPEN, /* skipping end of block that is not open */ 209 MANDOCERR_RE_NOTOPEN, /* fewer RS blocks open, skipping: RE arg */ 210 MANDOCERR_BLK_BROKEN, /* inserting missing end of block: macro ... */ 211 MANDOCERR_BLK_NOEND, /* appending missing end of block: macro */ 212 213 /* related to request and macro arguments */ 214 MANDOCERR_NAMESC, /* escaped character not allowed in a name: name */ 215 MANDOCERR_ARG_UNDEF, /* using macro argument outside macro */ 216 MANDOCERR_ARG_NONUM, /* argument number is not numeric */ 217 MANDOCERR_BD_FILE, /* NOT IMPLEMENTED: Bd -file */ 218 MANDOCERR_BD_NOARG, /* skipping display without arguments: Bd */ 219 MANDOCERR_BL_NOTYPE, /* missing list type, using -item: Bl */ 220 MANDOCERR_CE_NONUM, /* argument is not numeric, using 1: ce ... */ 221 MANDOCERR_CHAR_ARG, /* argument is not a character: char ... */ 222 MANDOCERR_NM_NONAME, /* missing manual name, using "": Nm */ 223 MANDOCERR_OS_UNAME, /* uname(3) system call failed, using UNKNOWN */ 224 MANDOCERR_ST_BAD, /* unknown standard specifier: St standard */ 225 MANDOCERR_IT_NONUM, /* skipping request without numeric argument */ 226 MANDOCERR_SHIFT, /* excessive shift: ..., but max is ... */ 227 MANDOCERR_SO_PATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */ 228 MANDOCERR_SO_FAIL, /* .so request failed */ 229 MANDOCERR_TG_SPC, /* skipping tag containing whitespace: tag */ 230 MANDOCERR_ARG_SKIP, /* skipping all arguments: macro args */ 231 MANDOCERR_ARG_EXCESS, /* skipping excess arguments: macro ... args */ 232 MANDOCERR_DIVZERO, /* divide by zero */ 233 234 MANDOCERR_UNSUPP, /* ===== start of unsupported features ===== */ 235 236 MANDOCERR_TOOLARGE, /* input too large */ 237 MANDOCERR_CHAR_UNSUPP, /* unsupported control character: number */ 238 MANDOCERR_ESC_UNSUPP, /* unsupported escape sequence: escape */ 239 MANDOCERR_REQ_UNSUPP, /* unsupported roff request: request */ 240 MANDOCERR_WHILE_NEST, /* nested .while loops */ 241 MANDOCERR_WHILE_OUTOF, /* end of scope with open .while loop */ 242 MANDOCERR_WHILE_INTO, /* end of .while loop in inner scope */ 243 MANDOCERR_WHILE_FAIL, /* cannot continue this .while loop */ 244 MANDOCERR_TBLOPT_EQN, /* eqn delim option in tbl: arg */ 245 MANDOCERR_TBLLAYOUT_MOD, /* unsupported tbl layout modifier: m */ 246 MANDOCERR_TBLMACRO, /* ignoring macro in table: macro */ 247 248 MANDOCERR_BADARG, /* ===== start of bad invocations ===== */ 249 250 MANDOCERR_BADARG_BAD, /* bad argument */ 251 MANDOCERR_BADARG_DUPE, /* duplicate argument */ 252 MANDOCERR_BADVAL, /* does not take a value */ 253 MANDOCERR_BADVAL_MISS, /* missing argument value */ 254 MANDOCERR_BADVAL_BAD, /* bad argument value */ 255 MANDOCERR_BADVAL_DUPE, /* duplicate argument value */ 256 MANDOCERR_TAG, /* no such tag */ 257 258 MANDOCERR_SYSERR, /* ===== start of system errors ===== */ 259 260 MANDOCERR_DUP, 261 MANDOCERR_EXEC, 262 MANDOCERR_FDOPEN, 263 MANDOCERR_FFLUSH, 264 MANDOCERR_FORK, 265 MANDOCERR_FSTAT, 266 MANDOCERR_GETLINE, 267 MANDOCERR_GLOB, 268 MANDOCERR_GZCLOSE, 269 MANDOCERR_GZDOPEN, 270 MANDOCERR_MKSTEMP, 271 MANDOCERR_OPEN, 272 MANDOCERR_PLEDGE, 273 MANDOCERR_READ, 274 MANDOCERR_WAIT, 275 MANDOCERR_WRITE, 276 277 MANDOCERR_MAX 278 }; 279 280 enum mandoc_esc { 281 ESCAPE_ERROR = 0, /* bail! unparsable escape */ 282 ESCAPE_UNSUPP, /* unsupported escape; ignore it */ 283 ESCAPE_IGNORE, /* escape to be ignored */ 284 ESCAPE_UNDEF, /* undefined escape; print literal character */ 285 ESCAPE_SPECIAL, /* a regular special character */ 286 ESCAPE_FONT, /* a generic font mode */ 287 ESCAPE_FONTBOLD, /* bold font mode */ 288 ESCAPE_FONTITALIC, /* italic font mode */ 289 ESCAPE_FONTBI, /* bold italic font mode */ 290 ESCAPE_FONTROMAN, /* roman font mode */ 291 ESCAPE_FONTCW, /* constant width font mode */ 292 ESCAPE_FONTPREV, /* previous font mode */ 293 ESCAPE_NUMBERED, /* a numbered glyph */ 294 ESCAPE_UNICODE, /* a unicode codepoint */ 295 ESCAPE_DEVICE, /* print the output device name */ 296 ESCAPE_BREAK, /* break the output line */ 297 ESCAPE_NOSPACE, /* suppress space if the last on a line */ 298 ESCAPE_HORIZ, /* horizontal movement */ 299 ESCAPE_HLINE, /* horizontal line drawing */ 300 ESCAPE_SKIPCHAR, /* skip the next character */ 301 ESCAPE_OVERSTRIKE /* overstrike all chars in the argument */ 302 }; 303 304 305 enum mandoc_esc mandoc_font(const char *, int); 306 enum mandoc_esc mandoc_escape(const char **, const char **, int *); 307 void mandoc_msg_setoutfile(FILE *); 308 const char *mandoc_msg_getinfilename(void); 309 void mandoc_msg_setinfilename(const char *); 310 enum mandocerr mandoc_msg_getmin(void); 311 void mandoc_msg_setmin(enum mandocerr); 312 enum mandoclevel mandoc_msg_getrc(void); 313 void mandoc_msg_setrc(enum mandoclevel); 314 void mandoc_msg(enum mandocerr, int, int, const char *, ...) 315 __attribute__((__format__ (__printf__, 4, 5))); 316 void mandoc_msg_summary(void); 317 void mchars_alloc(void); 318 void mchars_free(void); 319 int mchars_num2char(const char *, size_t); 320 const char *mchars_uc2str(int); 321 int mchars_num2uc(const char *, size_t); 322 int mchars_spec2cp(const char *, size_t); 323 const char *mchars_spec2str(const char *, size_t, size_t *); 324