Annotation of mandoc/roff.c, Revision 1.332
1.332 ! schwarze 1: /* $Id: roff.c,v 1.331 2018/08/16 13:54:06 schwarze Exp $ */
1.1 kristaps 2: /*
1.267 schwarze 3: * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
1.325 schwarze 4: * Copyright (c) 2010-2015, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.66 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.106 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.66 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.106 kristaps 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.66 kristaps 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.
1.1 kristaps 17: */
1.66 kristaps 18: #include "config.h"
1.225 schwarze 19:
20: #include <sys/types.h>
1.30 kristaps 21:
1.67 kristaps 22: #include <assert.h>
1.85 kristaps 23: #include <ctype.h>
1.245 schwarze 24: #include <limits.h>
1.295 schwarze 25: #include <stddef.h>
26: #include <stdint.h>
1.178 schwarze 27: #include <stdio.h>
1.1 kristaps 28: #include <stdlib.h>
1.67 kristaps 29: #include <string.h>
1.1 kristaps 30:
1.67 kristaps 31: #include "mandoc.h"
1.201 schwarze 32: #include "mandoc_aux.h"
1.295 schwarze 33: #include "mandoc_ohash.h"
1.265 schwarze 34: #include "roff.h"
1.226 schwarze 35: #include "libmandoc.h"
1.266 schwarze 36: #include "roff_int.h"
1.109 kristaps 37: #include "libroff.h"
1.82 kristaps 38:
1.170 schwarze 39: /* Maximum number of string expansions per line, to break infinite loops. */
40: #define EXPAND_LIMIT 1000
41:
1.315 schwarze 42: /* Types of definitions of macros and strings. */
43: #define ROFFDEF_USER (1 << 1) /* User-defined. */
44: #define ROFFDEF_PRE (1 << 2) /* Predefined. */
45: #define ROFFDEF_REN (1 << 3) /* Renamed standard macro. */
46: #define ROFFDEF_STD (1 << 4) /* mdoc(7) or man(7) macro. */
47: #define ROFFDEF_ANY (ROFFDEF_USER | ROFFDEF_PRE | \
48: ROFFDEF_REN | ROFFDEF_STD)
1.325 schwarze 49: #define ROFFDEF_UNDEF (1 << 5) /* Completely undefined. */
1.315 schwarze 50:
1.266 schwarze 51: /* --- data types --------------------------------------------------------- */
52:
1.147 kristaps 53: /*
1.167 kristaps 54: * An incredibly-simple string buffer.
55: */
1.94 kristaps 56: struct roffstr {
1.167 kristaps 57: char *p; /* nil-terminated buffer */
58: size_t sz; /* saved strlen(p) */
1.166 kristaps 59: };
60:
61: /*
1.167 kristaps 62: * A key-value roffstr pair as part of a singly-linked list.
1.166 kristaps 63: */
64: struct roffkv {
65: struct roffstr key;
66: struct roffstr val;
67: struct roffkv *next; /* next in list */
1.94 kristaps 68: };
69:
1.180 schwarze 70: /*
71: * A single number register as part of a singly-linked list.
72: */
73: struct roffreg {
74: struct roffstr key;
1.181 schwarze 75: int val;
1.327 schwarze 76: int step;
1.180 schwarze 77: struct roffreg *next;
78: };
79:
1.295 schwarze 80: /*
81: * Association of request and macro names with token IDs.
82: */
83: struct roffreq {
84: enum roff_tok tok;
85: char name[];
86: };
87:
1.67 kristaps 88: struct roff {
1.128 kristaps 89: struct mparse *parse; /* parse point */
1.296 schwarze 90: struct roff_man *man; /* mdoc or man parser */
1.67 kristaps 91: struct roffnode *last; /* leaf of stack */
1.223 schwarze 92: int *rstack; /* stack of inverted `ie' values */
1.295 schwarze 93: struct ohash *reqtab; /* request lookup table */
1.180 schwarze 94: struct roffreg *regtab; /* number registers */
1.166 kristaps 95: struct roffkv *strtab; /* user-defined strings & macros */
1.306 schwarze 96: struct roffkv *rentab; /* renamed strings & macros */
1.167 kristaps 97: struct roffkv *xmbtab; /* multi-byte trans table (`tr') */
98: struct roffstr *xtab; /* single-byte trans table (`tr') */
1.106 kristaps 99: const char *current_string; /* value of last called user macro */
1.118 kristaps 100: struct tbl_node *first_tbl; /* first table parsed */
101: struct tbl_node *last_tbl; /* last table parsed */
102: struct tbl_node *tbl; /* current table being parsed */
1.319 schwarze 103: struct eqn_node *last_eqn; /* equation parser */
104: struct eqn_node *eqn; /* active equation parser */
1.230 schwarze 105: int eqn_inline; /* current equation is inline */
1.223 schwarze 106: int options; /* parse options */
107: int rstacksz; /* current size limit of rstack */
108: int rstackpos; /* position in rstack */
1.227 schwarze 109: int format; /* current file in mdoc or man format */
1.273 schwarze 110: int argc; /* number of args of the last macro */
1.223 schwarze 111: char control; /* control character */
1.303 schwarze 112: char escape; /* escape character */
1.79 kristaps 113: };
114:
1.67 kristaps 115: struct roffnode {
1.294 schwarze 116: enum roff_tok tok; /* type of node */
1.67 kristaps 117: struct roffnode *parent; /* up one in stack */
118: int line; /* parse line */
119: int col; /* parse col */
1.106 kristaps 120: char *name; /* node name, e.g. macro name */
1.79 kristaps 121: char *end; /* end-rules: custom token */
122: int endspan; /* end-rules: next-line or infty */
1.198 schwarze 123: int rule; /* current evaluation rule */
1.67 kristaps 124: };
125:
126: #define ROFF_ARGS struct roff *r, /* parse ctx */ \
1.294 schwarze 127: enum roff_tok tok, /* tok of macro */ \
1.238 schwarze 128: struct buf *buf, /* input buffer */ \
1.67 kristaps 129: int ln, /* parse line */ \
1.75 kristaps 130: int ppos, /* original pos in buffer */ \
131: int pos, /* current pos in buffer */ \
1.74 kristaps 132: int *offs /* reset offset of buffer data */
1.67 kristaps 133:
134: typedef enum rofferr (*roffproc)(ROFF_ARGS);
135:
136: struct roffmac {
1.79 kristaps 137: roffproc proc; /* process new macro */
138: roffproc text; /* process as child text of macro */
139: roffproc sub; /* process as child of macro */
140: int flags;
141: #define ROFFMAC_STRUCT (1 << 0) /* always interpret */
1.67 kristaps 142: };
143:
1.141 kristaps 144: struct predef {
145: const char *name; /* predefined input name */
146: const char *str; /* replacement symbol */
147: };
148:
149: #define PREDEF(__name, __str) \
150: { (__name), (__str) },
151:
1.266 schwarze 152: /* --- function prototypes ------------------------------------------------ */
153:
1.155 kristaps 154: static void roffnode_cleanscope(struct roff *);
155: static void roffnode_pop(struct roff *);
1.294 schwarze 156: static void roffnode_push(struct roff *, enum roff_tok,
1.155 kristaps 157: const char *, int, int);
1.321 schwarze 158: static void roff_addtbl(struct roff_man *, struct tbl_node *);
1.311 schwarze 159: static enum rofferr roff_als(ROFF_ARGS);
1.80 kristaps 160: static enum rofferr roff_block(ROFF_ARGS);
161: static enum rofferr roff_block_text(ROFF_ARGS);
162: static enum rofferr roff_block_sub(ROFF_ARGS);
1.296 schwarze 163: static enum rofferr roff_br(ROFF_ARGS);
1.80 kristaps 164: static enum rofferr roff_cblock(ROFF_ARGS);
1.174 kristaps 165: static enum rofferr roff_cc(ROFF_ARGS);
1.195 schwarze 166: static void roff_ccond(struct roff *, int, int);
1.82 kristaps 167: static enum rofferr roff_cond(ROFF_ARGS);
168: static enum rofferr roff_cond_text(ROFF_ARGS);
169: static enum rofferr roff_cond_sub(ROFF_ARGS);
1.92 schwarze 170: static enum rofferr roff_ds(ROFF_ARGS);
1.303 schwarze 171: static enum rofferr roff_ec(ROFF_ARGS);
172: static enum rofferr roff_eo(ROFF_ARGS);
1.238 schwarze 173: static enum rofferr roff_eqndelim(struct roff *, struct buf *, int);
1.271 schwarze 174: static int roff_evalcond(struct roff *r, int, char *, int *);
1.234 kristaps 175: static int roff_evalnum(struct roff *, int,
176: const char *, int *, int *, int);
177: static int roff_evalpar(struct roff *, int,
1.261 schwarze 178: const char *, int *, int *, int);
1.198 schwarze 179: static int roff_evalstrcond(const char *, int *);
1.155 kristaps 180: static void roff_free1(struct roff *);
1.180 schwarze 181: static void roff_freereg(struct roffreg *);
1.167 kristaps 182: static void roff_freestr(struct roffkv *);
1.212 schwarze 183: static size_t roff_getname(struct roff *, char **, int, int);
1.261 schwarze 184: static int roff_getnum(const char *, int *, int *, int);
1.184 schwarze 185: static int roff_getop(const char *, int *, char *);
1.327 schwarze 186: static int roff_getregn(struct roff *,
187: const char *, size_t, char);
1.273 schwarze 188: static int roff_getregro(const struct roff *,
189: const char *name);
1.325 schwarze 190: static const char *roff_getstrn(struct roff *,
1.315 schwarze 191: const char *, size_t, int *);
1.271 schwarze 192: static int roff_hasregn(const struct roff *,
193: const char *, size_t);
1.251 schwarze 194: static enum rofferr roff_insec(ROFF_ARGS);
1.178 schwarze 195: static enum rofferr roff_it(ROFF_ARGS);
1.103 kristaps 196: static enum rofferr roff_line_ignore(ROFF_ARGS);
1.265 schwarze 197: static void roff_man_alloc1(struct roff_man *);
198: static void roff_man_free1(struct roff_man *);
1.300 schwarze 199: static enum rofferr roff_manyarg(ROFF_ARGS);
1.330 schwarze 200: static enum rofferr roff_nop(ROFF_ARGS);
1.89 kristaps 201: static enum rofferr roff_nr(ROFF_ARGS);
1.297 schwarze 202: static enum rofferr roff_onearg(ROFF_ARGS);
1.294 schwarze 203: static enum roff_tok roff_parse(struct roff *, char *, int *,
1.214 schwarze 204: int, int);
1.305 schwarze 205: static enum rofferr roff_parsetext(struct roff *, struct buf *,
206: int, int *);
1.306 schwarze 207: static enum rofferr roff_renamed(ROFF_ARGS);
1.238 schwarze 208: static enum rofferr roff_res(struct roff *, struct buf *, int, int);
1.122 schwarze 209: static enum rofferr roff_rm(ROFF_ARGS);
1.306 schwarze 210: static enum rofferr roff_rn(ROFF_ARGS);
1.203 schwarze 211: static enum rofferr roff_rr(ROFF_ARGS);
1.326 schwarze 212: static void roff_setregn(struct roff *, const char *,
1.327 schwarze 213: size_t, int, char, int);
1.94 kristaps 214: static void roff_setstr(struct roff *,
1.106 kristaps 215: const char *, const char *, int);
1.207 schwarze 216: static void roff_setstrn(struct roffkv **, const char *,
1.164 kristaps 217: size_t, const char *, size_t, int);
1.105 kristaps 218: static enum rofferr roff_so(ROFF_ARGS);
1.164 kristaps 219: static enum rofferr roff_tr(ROFF_ARGS);
1.175 schwarze 220: static enum rofferr roff_Dd(ROFF_ARGS);
1.109 kristaps 221: static enum rofferr roff_TE(ROFF_ARGS);
222: static enum rofferr roff_TS(ROFF_ARGS);
1.125 kristaps 223: static enum rofferr roff_EQ(ROFF_ARGS);
224: static enum rofferr roff_EN(ROFF_ARGS);
1.112 kristaps 225: static enum rofferr roff_T_(ROFF_ARGS);
1.251 schwarze 226: static enum rofferr roff_unsupp(ROFF_ARGS);
1.106 kristaps 227: static enum rofferr roff_userdef(ROFF_ARGS);
1.67 kristaps 228:
1.266 schwarze 229: /* --- constant data ------------------------------------------------------ */
230:
1.261 schwarze 231: #define ROFFNUM_SCALE (1 << 0) /* Honour scaling in roff_getnum(). */
232: #define ROFFNUM_WHITE (1 << 1) /* Skip whitespace in roff_evalnum(). */
233:
1.294 schwarze 234: const char *__roff_name[MAN_MAX + 1] = {
1.305 schwarze 235: "br", "ce", "ft", "ll",
1.312 schwarze 236: "mc", "po", "rj", "sp",
237: "ta", "ti", NULL,
1.294 schwarze 238: "ab", "ad", "af", "aln",
239: "als", "am", "am1", "ami",
240: "ami1", "as", "as1", "asciify",
241: "backtrace", "bd", "bleedat", "blm",
242: "box", "boxa", "bp", "BP",
243: "break", "breakchar", "brnl", "brp",
1.305 schwarze 244: "brpnl", "c2", "cc",
1.294 schwarze 245: "cf", "cflags", "ch", "char",
246: "chop", "class", "close", "CL",
247: "color", "composite", "continue", "cp",
248: "cropat", "cs", "cu", "da",
249: "dch", "Dd", "de", "de1",
250: "defcolor", "dei", "dei1", "device",
251: "devicem", "di", "do", "ds",
252: "ds1", "dwh", "dt", "ec",
253: "ecr", "ecs", "el", "em",
254: "EN", "eo", "EP", "EQ",
255: "errprint", "ev", "evc", "ex",
256: "fallback", "fam", "fc", "fchar",
257: "fcolor", "fdeferlig", "feature", "fkern",
258: "fl", "flig", "fp", "fps",
259: "fschar", "fspacewidth", "fspecial", "ftr",
260: "fzoom", "gcolor", "hc", "hcode",
261: "hidechar", "hla", "hlm", "hpf",
262: "hpfa", "hpfcode", "hw", "hy",
263: "hylang", "hylen", "hym", "hypp",
264: "hys", "ie", "if", "ig",
265: "index", "it", "itc", "IX",
266: "kern", "kernafter", "kernbefore", "kernpair",
267: "lc", "lc_ctype", "lds", "length",
268: "letadj", "lf", "lg", "lhang",
269: "linetabs", "lnr", "lnrf", "lpfx",
1.304 schwarze 270: "ls", "lsm", "lt",
1.294 schwarze 271: "mediasize", "minss", "mk", "mso",
272: "na", "ne", "nh", "nhychar",
273: "nm", "nn", "nop", "nr",
274: "nrf", "nroff", "ns", "nx",
275: "open", "opena", "os", "output",
276: "padj", "papersize", "pc", "pev",
277: "pi", "PI", "pl", "pm",
1.312 schwarze 278: "pn", "pnr", "ps",
1.294 schwarze 279: "psbb", "pshape", "pso", "ptr",
280: "pvs", "rchar", "rd", "recursionlimit",
1.309 schwarze 281: "return", "rfschar", "rhang",
1.294 schwarze 282: "rm", "rn", "rnn", "rr",
283: "rs", "rt", "schar", "sentchar",
284: "shc", "shift", "sizes", "so",
285: "spacewidth", "special", "spreadwarn", "ss",
286: "sty", "substring", "sv", "sy",
1.300 schwarze 287: "T&", "tc", "TE",
1.301 schwarze 288: "TH", "tkf", "tl",
1.294 schwarze 289: "tm", "tm1", "tmc", "tr",
290: "track", "transchar", "trf", "trimat",
291: "trin", "trnt", "troff", "TS",
292: "uf", "ul", "unformat", "unwatch",
293: "unwatchn", "vpt", "vs", "warn",
294: "warnscale", "watch", "watchlength", "watchn",
295: "wh", "while", "write", "writec",
296: "writem", "xflag", ".", NULL,
1.306 schwarze 297: NULL, "text",
1.294 schwarze 298: "Dd", "Dt", "Os", "Sh",
299: "Ss", "Pp", "D1", "Dl",
300: "Bd", "Ed", "Bl", "El",
301: "It", "Ad", "An", "Ap",
302: "Ar", "Cd", "Cm", "Dv",
303: "Er", "Ev", "Ex", "Fa",
304: "Fd", "Fl", "Fn", "Ft",
305: "Ic", "In", "Li", "Nd",
306: "Nm", "Op", "Ot", "Pa",
307: "Rv", "St", "Va", "Vt",
308: "Xr", "%A", "%B", "%D",
309: "%I", "%J", "%N", "%O",
310: "%P", "%R", "%T", "%V",
311: "Ac", "Ao", "Aq", "At",
312: "Bc", "Bf", "Bo", "Bq",
313: "Bsx", "Bx", "Db", "Dc",
314: "Do", "Dq", "Ec", "Ef",
315: "Em", "Eo", "Fx", "Ms",
316: "No", "Ns", "Nx", "Ox",
317: "Pc", "Pf", "Po", "Pq",
318: "Qc", "Ql", "Qo", "Qq",
319: "Re", "Rs", "Sc", "So",
320: "Sq", "Sm", "Sx", "Sy",
321: "Tn", "Ux", "Xc", "Xo",
322: "Fo", "Fc", "Oo", "Oc",
323: "Bk", "Ek", "Bt", "Hf",
324: "Fr", "Ud", "Lb", "Lp",
325: "Lk", "Mt", "Brq", "Bro",
326: "Brc", "%C", "Es", "En",
1.299 schwarze 327: "Dx", "%Q", "%U", "Ta",
328: NULL,
1.294 schwarze 329: "TH", "SH", "SS", "TP",
1.332 ! schwarze 330: "TQ",
1.294 schwarze 331: "LP", "PP", "P", "IP",
332: "HP", "SM", "SB", "BI",
333: "IB", "BR", "RB", "R",
334: "B", "I", "IR", "RI",
1.299 schwarze 335: "nf", "fi",
1.294 schwarze 336: "RE", "RS", "DT", "UC",
1.297 schwarze 337: "PD", "AT", "in",
1.294 schwarze 338: "OP", "EX", "EE", "UR",
1.317 schwarze 339: "UE", "MT", "ME", NULL
1.294 schwarze 340: };
341: const char *const *roff_name = __roff_name;
342:
343: static struct roffmac roffs[TOKEN_NONE] = {
1.296 schwarze 344: { roff_br, NULL, NULL, 0 }, /* br */
1.305 schwarze 345: { roff_onearg, NULL, NULL, 0 }, /* ce */
1.297 schwarze 346: { roff_onearg, NULL, NULL, 0 }, /* ft */
1.298 schwarze 347: { roff_onearg, NULL, NULL, 0 }, /* ll */
1.304 schwarze 348: { roff_onearg, NULL, NULL, 0 }, /* mc */
1.312 schwarze 349: { roff_onearg, NULL, NULL, 0 }, /* po */
1.309 schwarze 350: { roff_onearg, NULL, NULL, 0 }, /* rj */
1.299 schwarze 351: { roff_onearg, NULL, NULL, 0 }, /* sp */
1.300 schwarze 352: { roff_manyarg, NULL, NULL, 0 }, /* ta */
1.301 schwarze 353: { roff_onearg, NULL, NULL, 0 }, /* ti */
1.296 schwarze 354: { NULL, NULL, NULL, 0 }, /* ROFF_MAX */
1.295 schwarze 355: { roff_unsupp, NULL, NULL, 0 }, /* ab */
356: { roff_line_ignore, NULL, NULL, 0 }, /* ad */
357: { roff_line_ignore, NULL, NULL, 0 }, /* af */
358: { roff_unsupp, NULL, NULL, 0 }, /* aln */
1.311 schwarze 359: { roff_als, NULL, NULL, 0 }, /* als */
1.295 schwarze 360: { roff_block, roff_block_text, roff_block_sub, 0 }, /* am */
361: { roff_block, roff_block_text, roff_block_sub, 0 }, /* am1 */
362: { roff_block, roff_block_text, roff_block_sub, 0 }, /* ami */
363: { roff_block, roff_block_text, roff_block_sub, 0 }, /* ami1 */
364: { roff_ds, NULL, NULL, 0 }, /* as */
365: { roff_ds, NULL, NULL, 0 }, /* as1 */
366: { roff_unsupp, NULL, NULL, 0 }, /* asciify */
367: { roff_line_ignore, NULL, NULL, 0 }, /* backtrace */
368: { roff_line_ignore, NULL, NULL, 0 }, /* bd */
369: { roff_line_ignore, NULL, NULL, 0 }, /* bleedat */
370: { roff_unsupp, NULL, NULL, 0 }, /* blm */
371: { roff_unsupp, NULL, NULL, 0 }, /* box */
372: { roff_unsupp, NULL, NULL, 0 }, /* boxa */
373: { roff_line_ignore, NULL, NULL, 0 }, /* bp */
374: { roff_unsupp, NULL, NULL, 0 }, /* BP */
375: { roff_unsupp, NULL, NULL, 0 }, /* break */
376: { roff_line_ignore, NULL, NULL, 0 }, /* breakchar */
377: { roff_line_ignore, NULL, NULL, 0 }, /* brnl */
1.296 schwarze 378: { roff_br, NULL, NULL, 0 }, /* brp */
1.295 schwarze 379: { roff_line_ignore, NULL, NULL, 0 }, /* brpnl */
380: { roff_unsupp, NULL, NULL, 0 }, /* c2 */
381: { roff_cc, NULL, NULL, 0 }, /* cc */
382: { roff_insec, NULL, NULL, 0 }, /* cf */
383: { roff_line_ignore, NULL, NULL, 0 }, /* cflags */
384: { roff_line_ignore, NULL, NULL, 0 }, /* ch */
385: { roff_unsupp, NULL, NULL, 0 }, /* char */
386: { roff_unsupp, NULL, NULL, 0 }, /* chop */
387: { roff_line_ignore, NULL, NULL, 0 }, /* class */
388: { roff_insec, NULL, NULL, 0 }, /* close */
389: { roff_unsupp, NULL, NULL, 0 }, /* CL */
390: { roff_line_ignore, NULL, NULL, 0 }, /* color */
391: { roff_unsupp, NULL, NULL, 0 }, /* composite */
392: { roff_unsupp, NULL, NULL, 0 }, /* continue */
393: { roff_line_ignore, NULL, NULL, 0 }, /* cp */
394: { roff_line_ignore, NULL, NULL, 0 }, /* cropat */
395: { roff_line_ignore, NULL, NULL, 0 }, /* cs */
396: { roff_line_ignore, NULL, NULL, 0 }, /* cu */
397: { roff_unsupp, NULL, NULL, 0 }, /* da */
398: { roff_unsupp, NULL, NULL, 0 }, /* dch */
399: { roff_Dd, NULL, NULL, 0 }, /* Dd */
400: { roff_block, roff_block_text, roff_block_sub, 0 }, /* de */
401: { roff_block, roff_block_text, roff_block_sub, 0 }, /* de1 */
402: { roff_line_ignore, NULL, NULL, 0 }, /* defcolor */
403: { roff_block, roff_block_text, roff_block_sub, 0 }, /* dei */
404: { roff_block, roff_block_text, roff_block_sub, 0 }, /* dei1 */
405: { roff_unsupp, NULL, NULL, 0 }, /* device */
406: { roff_unsupp, NULL, NULL, 0 }, /* devicem */
407: { roff_unsupp, NULL, NULL, 0 }, /* di */
408: { roff_unsupp, NULL, NULL, 0 }, /* do */
409: { roff_ds, NULL, NULL, 0 }, /* ds */
410: { roff_ds, NULL, NULL, 0 }, /* ds1 */
411: { roff_unsupp, NULL, NULL, 0 }, /* dwh */
412: { roff_unsupp, NULL, NULL, 0 }, /* dt */
1.303 schwarze 413: { roff_ec, NULL, NULL, 0 }, /* ec */
1.295 schwarze 414: { roff_unsupp, NULL, NULL, 0 }, /* ecr */
415: { roff_unsupp, NULL, NULL, 0 }, /* ecs */
416: { roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, /* el */
417: { roff_unsupp, NULL, NULL, 0 }, /* em */
418: { roff_EN, NULL, NULL, 0 }, /* EN */
1.303 schwarze 419: { roff_eo, NULL, NULL, 0 }, /* eo */
1.295 schwarze 420: { roff_unsupp, NULL, NULL, 0 }, /* EP */
421: { roff_EQ, NULL, NULL, 0 }, /* EQ */
422: { roff_line_ignore, NULL, NULL, 0 }, /* errprint */
423: { roff_unsupp, NULL, NULL, 0 }, /* ev */
424: { roff_unsupp, NULL, NULL, 0 }, /* evc */
425: { roff_unsupp, NULL, NULL, 0 }, /* ex */
426: { roff_line_ignore, NULL, NULL, 0 }, /* fallback */
427: { roff_line_ignore, NULL, NULL, 0 }, /* fam */
428: { roff_unsupp, NULL, NULL, 0 }, /* fc */
429: { roff_unsupp, NULL, NULL, 0 }, /* fchar */
430: { roff_line_ignore, NULL, NULL, 0 }, /* fcolor */
431: { roff_line_ignore, NULL, NULL, 0 }, /* fdeferlig */
432: { roff_line_ignore, NULL, NULL, 0 }, /* feature */
433: { roff_line_ignore, NULL, NULL, 0 }, /* fkern */
434: { roff_line_ignore, NULL, NULL, 0 }, /* fl */
435: { roff_line_ignore, NULL, NULL, 0 }, /* flig */
436: { roff_line_ignore, NULL, NULL, 0 }, /* fp */
437: { roff_line_ignore, NULL, NULL, 0 }, /* fps */
438: { roff_unsupp, NULL, NULL, 0 }, /* fschar */
439: { roff_line_ignore, NULL, NULL, 0 }, /* fspacewidth */
440: { roff_line_ignore, NULL, NULL, 0 }, /* fspecial */
441: { roff_line_ignore, NULL, NULL, 0 }, /* ftr */
442: { roff_line_ignore, NULL, NULL, 0 }, /* fzoom */
443: { roff_line_ignore, NULL, NULL, 0 }, /* gcolor */
444: { roff_line_ignore, NULL, NULL, 0 }, /* hc */
445: { roff_line_ignore, NULL, NULL, 0 }, /* hcode */
446: { roff_line_ignore, NULL, NULL, 0 }, /* hidechar */
447: { roff_line_ignore, NULL, NULL, 0 }, /* hla */
448: { roff_line_ignore, NULL, NULL, 0 }, /* hlm */
449: { roff_line_ignore, NULL, NULL, 0 }, /* hpf */
450: { roff_line_ignore, NULL, NULL, 0 }, /* hpfa */
451: { roff_line_ignore, NULL, NULL, 0 }, /* hpfcode */
452: { roff_line_ignore, NULL, NULL, 0 }, /* hw */
453: { roff_line_ignore, NULL, NULL, 0 }, /* hy */
454: { roff_line_ignore, NULL, NULL, 0 }, /* hylang */
455: { roff_line_ignore, NULL, NULL, 0 }, /* hylen */
456: { roff_line_ignore, NULL, NULL, 0 }, /* hym */
457: { roff_line_ignore, NULL, NULL, 0 }, /* hypp */
458: { roff_line_ignore, NULL, NULL, 0 }, /* hys */
459: { roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, /* ie */
460: { roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, /* if */
461: { roff_block, roff_block_text, roff_block_sub, 0 }, /* ig */
462: { roff_unsupp, NULL, NULL, 0 }, /* index */
463: { roff_it, NULL, NULL, 0 }, /* it */
464: { roff_unsupp, NULL, NULL, 0 }, /* itc */
465: { roff_line_ignore, NULL, NULL, 0 }, /* IX */
466: { roff_line_ignore, NULL, NULL, 0 }, /* kern */
467: { roff_line_ignore, NULL, NULL, 0 }, /* kernafter */
468: { roff_line_ignore, NULL, NULL, 0 }, /* kernbefore */
469: { roff_line_ignore, NULL, NULL, 0 }, /* kernpair */
470: { roff_unsupp, NULL, NULL, 0 }, /* lc */
471: { roff_unsupp, NULL, NULL, 0 }, /* lc_ctype */
472: { roff_unsupp, NULL, NULL, 0 }, /* lds */
473: { roff_unsupp, NULL, NULL, 0 }, /* length */
474: { roff_line_ignore, NULL, NULL, 0 }, /* letadj */
475: { roff_insec, NULL, NULL, 0 }, /* lf */
476: { roff_line_ignore, NULL, NULL, 0 }, /* lg */
477: { roff_line_ignore, NULL, NULL, 0 }, /* lhang */
478: { roff_unsupp, NULL, NULL, 0 }, /* linetabs */
479: { roff_unsupp, NULL, NULL, 0 }, /* lnr */
480: { roff_unsupp, NULL, NULL, 0 }, /* lnrf */
481: { roff_unsupp, NULL, NULL, 0 }, /* lpfx */
482: { roff_line_ignore, NULL, NULL, 0 }, /* ls */
483: { roff_unsupp, NULL, NULL, 0 }, /* lsm */
484: { roff_line_ignore, NULL, NULL, 0 }, /* lt */
485: { roff_line_ignore, NULL, NULL, 0 }, /* mediasize */
486: { roff_line_ignore, NULL, NULL, 0 }, /* minss */
487: { roff_line_ignore, NULL, NULL, 0 }, /* mk */
488: { roff_insec, NULL, NULL, 0 }, /* mso */
489: { roff_line_ignore, NULL, NULL, 0 }, /* na */
490: { roff_line_ignore, NULL, NULL, 0 }, /* ne */
491: { roff_line_ignore, NULL, NULL, 0 }, /* nh */
492: { roff_line_ignore, NULL, NULL, 0 }, /* nhychar */
493: { roff_unsupp, NULL, NULL, 0 }, /* nm */
494: { roff_unsupp, NULL, NULL, 0 }, /* nn */
1.330 schwarze 495: { roff_nop, NULL, NULL, 0 }, /* nop */
1.295 schwarze 496: { roff_nr, NULL, NULL, 0 }, /* nr */
497: { roff_unsupp, NULL, NULL, 0 }, /* nrf */
498: { roff_line_ignore, NULL, NULL, 0 }, /* nroff */
499: { roff_line_ignore, NULL, NULL, 0 }, /* ns */
500: { roff_insec, NULL, NULL, 0 }, /* nx */
501: { roff_insec, NULL, NULL, 0 }, /* open */
502: { roff_insec, NULL, NULL, 0 }, /* opena */
503: { roff_line_ignore, NULL, NULL, 0 }, /* os */
504: { roff_unsupp, NULL, NULL, 0 }, /* output */
505: { roff_line_ignore, NULL, NULL, 0 }, /* padj */
506: { roff_line_ignore, NULL, NULL, 0 }, /* papersize */
507: { roff_line_ignore, NULL, NULL, 0 }, /* pc */
508: { roff_line_ignore, NULL, NULL, 0 }, /* pev */
509: { roff_insec, NULL, NULL, 0 }, /* pi */
510: { roff_unsupp, NULL, NULL, 0 }, /* PI */
511: { roff_line_ignore, NULL, NULL, 0 }, /* pl */
512: { roff_line_ignore, NULL, NULL, 0 }, /* pm */
513: { roff_line_ignore, NULL, NULL, 0 }, /* pn */
514: { roff_line_ignore, NULL, NULL, 0 }, /* pnr */
515: { roff_line_ignore, NULL, NULL, 0 }, /* ps */
516: { roff_unsupp, NULL, NULL, 0 }, /* psbb */
517: { roff_unsupp, NULL, NULL, 0 }, /* pshape */
518: { roff_insec, NULL, NULL, 0 }, /* pso */
519: { roff_line_ignore, NULL, NULL, 0 }, /* ptr */
520: { roff_line_ignore, NULL, NULL, 0 }, /* pvs */
521: { roff_unsupp, NULL, NULL, 0 }, /* rchar */
522: { roff_line_ignore, NULL, NULL, 0 }, /* rd */
523: { roff_line_ignore, NULL, NULL, 0 }, /* recursionlimit */
524: { roff_unsupp, NULL, NULL, 0 }, /* return */
525: { roff_unsupp, NULL, NULL, 0 }, /* rfschar */
526: { roff_line_ignore, NULL, NULL, 0 }, /* rhang */
527: { roff_rm, NULL, NULL, 0 }, /* rm */
1.306 schwarze 528: { roff_rn, NULL, NULL, 0 }, /* rn */
1.295 schwarze 529: { roff_unsupp, NULL, NULL, 0 }, /* rnn */
530: { roff_rr, NULL, NULL, 0 }, /* rr */
531: { roff_line_ignore, NULL, NULL, 0 }, /* rs */
532: { roff_line_ignore, NULL, NULL, 0 }, /* rt */
533: { roff_unsupp, NULL, NULL, 0 }, /* schar */
534: { roff_line_ignore, NULL, NULL, 0 }, /* sentchar */
535: { roff_line_ignore, NULL, NULL, 0 }, /* shc */
536: { roff_unsupp, NULL, NULL, 0 }, /* shift */
537: { roff_line_ignore, NULL, NULL, 0 }, /* sizes */
538: { roff_so, NULL, NULL, 0 }, /* so */
539: { roff_line_ignore, NULL, NULL, 0 }, /* spacewidth */
540: { roff_line_ignore, NULL, NULL, 0 }, /* special */
541: { roff_line_ignore, NULL, NULL, 0 }, /* spreadwarn */
542: { roff_line_ignore, NULL, NULL, 0 }, /* ss */
543: { roff_line_ignore, NULL, NULL, 0 }, /* sty */
544: { roff_unsupp, NULL, NULL, 0 }, /* substring */
545: { roff_line_ignore, NULL, NULL, 0 }, /* sv */
546: { roff_insec, NULL, NULL, 0 }, /* sy */
547: { roff_T_, NULL, NULL, 0 }, /* T& */
548: { roff_unsupp, NULL, NULL, 0 }, /* tc */
549: { roff_TE, NULL, NULL, 0 }, /* TE */
1.315 schwarze 550: { roff_Dd, NULL, NULL, 0 }, /* TH */
1.295 schwarze 551: { roff_line_ignore, NULL, NULL, 0 }, /* tkf */
552: { roff_unsupp, NULL, NULL, 0 }, /* tl */
553: { roff_line_ignore, NULL, NULL, 0 }, /* tm */
554: { roff_line_ignore, NULL, NULL, 0 }, /* tm1 */
555: { roff_line_ignore, NULL, NULL, 0 }, /* tmc */
556: { roff_tr, NULL, NULL, 0 }, /* tr */
557: { roff_line_ignore, NULL, NULL, 0 }, /* track */
558: { roff_line_ignore, NULL, NULL, 0 }, /* transchar */
559: { roff_insec, NULL, NULL, 0 }, /* trf */
560: { roff_line_ignore, NULL, NULL, 0 }, /* trimat */
561: { roff_unsupp, NULL, NULL, 0 }, /* trin */
562: { roff_unsupp, NULL, NULL, 0 }, /* trnt */
563: { roff_line_ignore, NULL, NULL, 0 }, /* troff */
564: { roff_TS, NULL, NULL, 0 }, /* TS */
565: { roff_line_ignore, NULL, NULL, 0 }, /* uf */
566: { roff_line_ignore, NULL, NULL, 0 }, /* ul */
567: { roff_unsupp, NULL, NULL, 0 }, /* unformat */
568: { roff_line_ignore, NULL, NULL, 0 }, /* unwatch */
569: { roff_line_ignore, NULL, NULL, 0 }, /* unwatchn */
570: { roff_line_ignore, NULL, NULL, 0 }, /* vpt */
571: { roff_line_ignore, NULL, NULL, 0 }, /* vs */
572: { roff_line_ignore, NULL, NULL, 0 }, /* warn */
573: { roff_line_ignore, NULL, NULL, 0 }, /* warnscale */
574: { roff_line_ignore, NULL, NULL, 0 }, /* watch */
575: { roff_line_ignore, NULL, NULL, 0 }, /* watchlength */
576: { roff_line_ignore, NULL, NULL, 0 }, /* watchn */
577: { roff_unsupp, NULL, NULL, 0 }, /* wh */
578: { roff_unsupp, NULL, NULL, 0 }, /* while */
579: { roff_insec, NULL, NULL, 0 }, /* write */
580: { roff_insec, NULL, NULL, 0 }, /* writec */
581: { roff_insec, NULL, NULL, 0 }, /* writem */
582: { roff_line_ignore, NULL, NULL, 0 }, /* xflag */
583: { roff_cblock, NULL, NULL, 0 }, /* . */
1.306 schwarze 584: { roff_renamed, NULL, NULL, 0 },
1.295 schwarze 585: { roff_userdef, NULL, NULL, 0 }
1.67 kristaps 586: };
587:
1.141 kristaps 588: /* Array of injected predefined strings. */
589: #define PREDEFS_MAX 38
590: static const struct predef predefs[PREDEFS_MAX] = {
591: #include "predefs.in"
592: };
593:
1.305 schwarze 594: static int roffce_lines; /* number of input lines to center */
595: static struct roff_node *roffce_node; /* active request */
1.178 schwarze 596: static int roffit_lines; /* number of lines to delay */
597: static char *roffit_macro; /* nil-terminated macro line */
598:
1.207 schwarze 599:
1.266 schwarze 600: /* --- request table ------------------------------------------------------ */
601:
1.295 schwarze 602: struct ohash *
603: roffhash_alloc(enum roff_tok mintok, enum roff_tok maxtok)
1.85 kristaps 604: {
1.295 schwarze 605: struct ohash *htab;
606: struct roffreq *req;
607: enum roff_tok tok;
608: size_t sz;
609: unsigned int slot;
1.85 kristaps 610:
1.295 schwarze 611: htab = mandoc_malloc(sizeof(*htab));
612: mandoc_ohash_init(htab, 8, offsetof(struct roffreq, name));
1.85 kristaps 613:
1.295 schwarze 614: for (tok = mintok; tok < maxtok; tok++) {
1.296 schwarze 615: if (roff_name[tok] == NULL)
616: continue;
1.295 schwarze 617: sz = strlen(roff_name[tok]);
618: req = mandoc_malloc(sizeof(*req) + sz + 1);
619: req->tok = tok;
620: memcpy(req->name, roff_name[tok], sz + 1);
621: slot = ohash_qlookup(htab, req->name);
622: ohash_insert(htab, slot, req);
1.85 kristaps 623: }
1.295 schwarze 624: return htab;
1.85 kristaps 625: }
626:
1.295 schwarze 627: void
628: roffhash_free(struct ohash *htab)
1.67 kristaps 629: {
1.295 schwarze 630: struct roffreq *req;
631: unsigned int slot;
1.67 kristaps 632:
1.295 schwarze 633: if (htab == NULL)
634: return;
635: for (req = ohash_first(htab, &slot); req != NULL;
636: req = ohash_next(htab, &slot))
637: free(req);
638: ohash_delete(htab);
639: free(htab);
640: }
641:
642: enum roff_tok
643: roffhash_find(struct ohash *htab, const char *name, size_t sz)
644: {
645: struct roffreq *req;
646: const char *end;
647:
648: if (sz) {
649: end = name + sz;
650: req = ohash_find(htab, ohash_qlookupi(htab, name, &end));
651: } else
652: req = ohash_find(htab, ohash_qlookup(htab, name));
653: return req == NULL ? TOKEN_NONE : req->tok;
1.67 kristaps 654: }
655:
1.266 schwarze 656: /* --- stack of request blocks -------------------------------------------- */
657:
1.67 kristaps 658: /*
659: * Pop the current node off of the stack of roff instructions currently
660: * pending.
661: */
662: static void
663: roffnode_pop(struct roff *r)
664: {
665: struct roffnode *p;
666:
1.75 kristaps 667: assert(r->last);
1.207 schwarze 668: p = r->last;
1.82 kristaps 669:
1.75 kristaps 670: r->last = r->last->parent;
1.106 kristaps 671: free(p->name);
672: free(p->end);
1.67 kristaps 673: free(p);
674: }
675:
676: /*
677: * Push a roff node onto the instruction stack. This must later be
678: * removed with roffnode_pop().
679: */
1.98 schwarze 680: static void
1.294 schwarze 681: roffnode_push(struct roff *r, enum roff_tok tok, const char *name,
1.106 kristaps 682: int line, int col)
1.67 kristaps 683: {
684: struct roffnode *p;
685:
1.98 schwarze 686: p = mandoc_calloc(1, sizeof(struct roffnode));
1.67 kristaps 687: p->tok = tok;
1.106 kristaps 688: if (name)
689: p->name = mandoc_strdup(name);
1.67 kristaps 690: p->parent = r->last;
691: p->line = line;
692: p->col = col;
1.198 schwarze 693: p->rule = p->parent ? p->parent->rule : 0;
1.67 kristaps 694:
695: r->last = p;
696: }
697:
1.266 schwarze 698: /* --- roff parser state data management ---------------------------------- */
699:
1.67 kristaps 700: static void
701: roff_free1(struct roff *r)
702: {
1.176 schwarze 703: struct tbl_node *tbl;
1.167 kristaps 704: int i;
1.67 kristaps 705:
1.176 schwarze 706: while (NULL != (tbl = r->first_tbl)) {
707: r->first_tbl = tbl->next;
708: tbl_free(tbl);
1.109 kristaps 709: }
1.113 kristaps 710: r->first_tbl = r->last_tbl = r->tbl = NULL;
711:
1.319 schwarze 712: if (r->last_eqn != NULL)
713: eqn_free(r->last_eqn);
714: r->last_eqn = r->eqn = NULL;
1.125 kristaps 715:
1.67 kristaps 716: while (r->last)
717: roffnode_pop(r);
1.109 kristaps 718:
1.223 schwarze 719: free (r->rstack);
720: r->rstack = NULL;
721: r->rstacksz = 0;
722: r->rstackpos = -1;
723:
724: roff_freereg(r->regtab);
725: r->regtab = NULL;
726:
1.167 kristaps 727: roff_freestr(r->strtab);
1.306 schwarze 728: roff_freestr(r->rentab);
1.167 kristaps 729: roff_freestr(r->xmbtab);
1.306 schwarze 730: r->strtab = r->rentab = r->xmbtab = NULL;
1.167 kristaps 731:
732: if (r->xtab)
733: for (i = 0; i < 128; i++)
734: free(r->xtab[i].p);
735: free(r->xtab);
736: r->xtab = NULL;
1.67 kristaps 737: }
738:
739: void
740: roff_reset(struct roff *r)
741: {
742: roff_free1(r);
1.227 schwarze 743: r->format = r->options & (MPARSE_MDOC | MPARSE_MAN);
1.303 schwarze 744: r->control = '\0';
745: r->escape = '\\';
1.307 schwarze 746: roffce_lines = 0;
747: roffce_node = NULL;
748: roffit_lines = 0;
749: roffit_macro = NULL;
1.67 kristaps 750: }
751:
752: void
753: roff_free(struct roff *r)
754: {
755: roff_free1(r);
1.295 schwarze 756: roffhash_free(r->reqtab);
1.67 kristaps 757: free(r);
758: }
759:
760: struct roff *
1.279 schwarze 761: roff_alloc(struct mparse *parse, int options)
1.67 kristaps 762: {
763: struct roff *r;
764:
1.98 schwarze 765: r = mandoc_calloc(1, sizeof(struct roff));
1.128 kristaps 766: r->parse = parse;
1.328 schwarze 767: r->reqtab = roffhash_alloc(0, ROFF_RENAMED);
1.199 schwarze 768: r->options = options;
1.227 schwarze 769: r->format = options & (MPARSE_MDOC | MPARSE_MAN);
1.82 kristaps 770: r->rstackpos = -1;
1.303 schwarze 771: r->escape = '\\';
1.277 schwarze 772: return r;
1.265 schwarze 773: }
774:
1.266 schwarze 775: /* --- syntax tree state data management ---------------------------------- */
776:
1.265 schwarze 777: static void
778: roff_man_free1(struct roff_man *man)
779: {
780:
1.266 schwarze 781: if (man->first != NULL)
782: roff_node_delete(man, man->first);
1.265 schwarze 783: free(man->meta.msec);
784: free(man->meta.vol);
785: free(man->meta.os);
786: free(man->meta.arch);
787: free(man->meta.title);
788: free(man->meta.name);
789: free(man->meta.date);
790: }
791:
792: static void
793: roff_man_alloc1(struct roff_man *man)
794: {
795:
796: memset(&man->meta, 0, sizeof(man->meta));
797: man->first = mandoc_calloc(1, sizeof(*man->first));
798: man->first->type = ROFFT_ROOT;
799: man->last = man->first;
800: man->last_es = NULL;
801: man->flags = 0;
802: man->macroset = MACROSET_NONE;
803: man->lastsec = man->lastnamed = SEC_NONE;
804: man->next = ROFF_NEXT_CHILD;
805: }
806:
807: void
808: roff_man_reset(struct roff_man *man)
809: {
810:
811: roff_man_free1(man);
812: roff_man_alloc1(man);
813: }
814:
815: void
816: roff_man_free(struct roff_man *man)
817: {
818:
819: roff_man_free1(man);
820: free(man);
821: }
822:
823: struct roff_man *
824: roff_man_alloc(struct roff *roff, struct mparse *parse,
1.316 schwarze 825: const char *os_s, int quick)
1.265 schwarze 826: {
827: struct roff_man *man;
828:
829: man = mandoc_calloc(1, sizeof(*man));
830: man->parse = parse;
831: man->roff = roff;
1.316 schwarze 832: man->os_s = os_s;
1.265 schwarze 833: man->quick = quick;
834: roff_man_alloc1(man);
1.296 schwarze 835: roff->man = man;
1.277 schwarze 836: return man;
1.67 kristaps 837: }
838:
1.266 schwarze 839: /* --- syntax tree handling ----------------------------------------------- */
840:
841: struct roff_node *
842: roff_node_alloc(struct roff_man *man, int line, int pos,
843: enum roff_type type, int tok)
844: {
845: struct roff_node *n;
846:
847: n = mandoc_calloc(1, sizeof(*n));
848: n->line = line;
849: n->pos = pos;
850: n->tok = tok;
851: n->type = type;
852: n->sec = man->lastsec;
853:
854: if (man->flags & MDOC_SYNOPSIS)
1.285 schwarze 855: n->flags |= NODE_SYNPRETTY;
1.266 schwarze 856: else
1.285 schwarze 857: n->flags &= ~NODE_SYNPRETTY;
1.266 schwarze 858: if (man->flags & MDOC_NEWLINE)
1.285 schwarze 859: n->flags |= NODE_LINE;
1.266 schwarze 860: man->flags &= ~MDOC_NEWLINE;
861:
1.277 schwarze 862: return n;
1.266 schwarze 863: }
864:
865: void
866: roff_node_append(struct roff_man *man, struct roff_node *n)
867: {
868:
869: switch (man->next) {
870: case ROFF_NEXT_SIBLING:
1.281 schwarze 871: if (man->last->next != NULL) {
872: n->next = man->last->next;
873: man->last->next->prev = n;
874: } else
875: man->last->parent->last = n;
1.266 schwarze 876: man->last->next = n;
877: n->prev = man->last;
878: n->parent = man->last->parent;
879: break;
880: case ROFF_NEXT_CHILD:
1.287 schwarze 881: if (man->last->child != NULL) {
882: n->next = man->last->child;
883: man->last->child->prev = n;
884: } else
885: man->last->last = n;
1.266 schwarze 886: man->last->child = n;
887: n->parent = man->last;
888: break;
889: default:
890: abort();
891: }
1.282 schwarze 892: man->last = n;
1.266 schwarze 893:
894: switch (n->type) {
895: case ROFFT_HEAD:
896: n->parent->head = n;
897: break;
898: case ROFFT_BODY:
1.282 schwarze 899: if (n->end != ENDBODY_NOT)
900: return;
1.266 schwarze 901: n->parent->body = n;
902: break;
903: case ROFFT_TAIL:
904: n->parent->tail = n;
905: break;
906: default:
1.282 schwarze 907: return;
1.266 schwarze 908: }
1.282 schwarze 909:
910: /*
911: * Copy over the normalised-data pointer of our parent. Not
912: * everybody has one, but copying a null pointer is fine.
913: */
914:
915: n->norm = n->parent->norm;
916: assert(n->parent->type == ROFFT_BLOCK);
1.266 schwarze 917: }
918:
1.267 schwarze 919: void
920: roff_word_alloc(struct roff_man *man, int line, int pos, const char *word)
921: {
922: struct roff_node *n;
923:
924: n = roff_node_alloc(man, line, pos, ROFFT_TEXT, TOKEN_NONE);
925: n->string = roff_strdup(man->roff, word);
926: roff_node_append(man, n);
1.286 schwarze 927: n->flags |= NODE_VALID | NODE_ENDED;
1.267 schwarze 928: man->next = ROFF_NEXT_SIBLING;
929: }
930:
931: void
932: roff_word_append(struct roff_man *man, const char *word)
933: {
934: struct roff_node *n;
935: char *addstr, *newstr;
936:
937: n = man->last;
938: addstr = roff_strdup(man->roff, word);
939: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
940: free(addstr);
941: free(n->string);
942: n->string = newstr;
943: man->next = ROFF_NEXT_SIBLING;
1.268 schwarze 944: }
945:
946: void
947: roff_elem_alloc(struct roff_man *man, int line, int pos, int tok)
948: {
949: struct roff_node *n;
950:
951: n = roff_node_alloc(man, line, pos, ROFFT_ELEM, tok);
952: roff_node_append(man, n);
953: man->next = ROFF_NEXT_CHILD;
954: }
955:
956: struct roff_node *
957: roff_block_alloc(struct roff_man *man, int line, int pos, int tok)
958: {
959: struct roff_node *n;
960:
961: n = roff_node_alloc(man, line, pos, ROFFT_BLOCK, tok);
962: roff_node_append(man, n);
963: man->next = ROFF_NEXT_CHILD;
1.277 schwarze 964: return n;
1.267 schwarze 965: }
966:
1.266 schwarze 967: struct roff_node *
968: roff_head_alloc(struct roff_man *man, int line, int pos, int tok)
969: {
970: struct roff_node *n;
971:
972: n = roff_node_alloc(man, line, pos, ROFFT_HEAD, tok);
973: roff_node_append(man, n);
974: man->next = ROFF_NEXT_CHILD;
1.277 schwarze 975: return n;
1.266 schwarze 976: }
977:
978: struct roff_node *
979: roff_body_alloc(struct roff_man *man, int line, int pos, int tok)
980: {
981: struct roff_node *n;
982:
983: n = roff_node_alloc(man, line, pos, ROFFT_BODY, tok);
984: roff_node_append(man, n);
985: man->next = ROFF_NEXT_CHILD;
1.277 schwarze 986: return n;
1.267 schwarze 987: }
988:
1.321 schwarze 989: static void
990: roff_addtbl(struct roff_man *man, struct tbl_node *tbl)
1.267 schwarze 991: {
992: struct roff_node *n;
1.321 schwarze 993: const struct tbl_span *span;
1.267 schwarze 994:
995: if (man->macroset == MACROSET_MAN)
1.302 schwarze 996: man_breakscope(man, ROFF_TS);
1.321 schwarze 997: while ((span = tbl_span(tbl)) != NULL) {
998: n = roff_node_alloc(man, tbl->line, 0, ROFFT_TBL, TOKEN_NONE);
999: n->span = span;
1000: roff_node_append(man, n);
1001: n->flags |= NODE_VALID | NODE_ENDED;
1002: man->next = ROFF_NEXT_SIBLING;
1003: }
1.266 schwarze 1004: }
1005:
1006: void
1007: roff_node_unlink(struct roff_man *man, struct roff_node *n)
1008: {
1009:
1010: /* Adjust siblings. */
1011:
1012: if (n->prev)
1013: n->prev->next = n->next;
1014: if (n->next)
1015: n->next->prev = n->prev;
1016:
1017: /* Adjust parent. */
1018:
1019: if (n->parent != NULL) {
1020: if (n->parent->child == n)
1021: n->parent->child = n->next;
1022: if (n->parent->last == n)
1023: n->parent->last = n->prev;
1024: }
1025:
1026: /* Adjust parse point. */
1027:
1028: if (man == NULL)
1029: return;
1030: if (man->last == n) {
1031: if (n->prev == NULL) {
1032: man->last = n->parent;
1033: man->next = ROFF_NEXT_CHILD;
1034: } else {
1035: man->last = n->prev;
1036: man->next = ROFF_NEXT_SIBLING;
1037: }
1038: }
1039: if (man->first == n)
1040: man->first = NULL;
1041: }
1042:
1043: void
1044: roff_node_free(struct roff_node *n)
1045: {
1046:
1047: if (n->args != NULL)
1048: mdoc_argv_free(n->args);
1049: if (n->type == ROFFT_BLOCK || n->type == ROFFT_ELEM)
1050: free(n->norm);
1.319 schwarze 1051: if (n->eqn != NULL)
1052: eqn_box_free(n->eqn);
1.266 schwarze 1053: free(n->string);
1054: free(n);
1055: }
1056:
1057: void
1058: roff_node_delete(struct roff_man *man, struct roff_node *n)
1059: {
1060:
1061: while (n->child != NULL)
1062: roff_node_delete(man, n->child);
1063: roff_node_unlink(man, n);
1064: roff_node_free(n);
1.269 schwarze 1065: }
1066:
1067: void
1068: deroff(char **dest, const struct roff_node *n)
1069: {
1070: char *cp;
1071: size_t sz;
1072:
1073: if (n->type != ROFFT_TEXT) {
1074: for (n = n->child; n != NULL; n = n->next)
1075: deroff(dest, n);
1076: return;
1077: }
1078:
1.288 schwarze 1079: /* Skip leading whitespace. */
1.269 schwarze 1080:
1.288 schwarze 1081: for (cp = n->string; *cp != '\0'; cp++) {
1.289 schwarze 1082: if (cp[0] == '\\' && cp[1] != '\0' &&
1083: strchr(" %&0^|~", cp[1]) != NULL)
1.269 schwarze 1084: cp++;
1.288 schwarze 1085: else if ( ! isspace((unsigned char)*cp))
1.269 schwarze 1086: break;
1087: }
1088:
1.289 schwarze 1089: /* Skip trailing backslash. */
1090:
1091: sz = strlen(cp);
1.290 schwarze 1092: if (sz > 0 && cp[sz - 1] == '\\')
1.289 schwarze 1093: sz--;
1094:
1.269 schwarze 1095: /* Skip trailing whitespace. */
1096:
1.289 schwarze 1097: for (; sz; sz--)
1.269 schwarze 1098: if ( ! isspace((unsigned char)cp[sz-1]))
1099: break;
1100:
1101: /* Skip empty strings. */
1102:
1103: if (sz == 0)
1104: return;
1105:
1106: if (*dest == NULL) {
1107: *dest = mandoc_strndup(cp, sz);
1108: return;
1109: }
1110:
1111: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
1112: free(*dest);
1113: *dest = cp;
1.266 schwarze 1114: }
1115:
1116: /* --- main functions of the roff parser ---------------------------------- */
1117:
1.94 kristaps 1118: /*
1.206 schwarze 1119: * In the current line, expand escape sequences that tend to get
1120: * used in numerical expressions and conditional requests.
1121: * Also check the syntax of the remaining escape sequences.
1.154 kristaps 1122: */
1.172 schwarze 1123: static enum rofferr
1.238 schwarze 1124: roff_res(struct roff *r, struct buf *buf, int ln, int pos)
1.94 kristaps 1125: {
1.208 schwarze 1126: char ubuf[24]; /* buffer to print the number */
1.328 schwarze 1127: struct roff_node *n; /* used for header comments */
1.205 schwarze 1128: const char *start; /* start of the string to process */
1.209 schwarze 1129: char *stesc; /* start of an escape sequence ('\\') */
1.328 schwarze 1130: char *ep; /* end of comment string */
1.108 schwarze 1131: const char *stnam; /* start of the name, after "[(*" */
1132: const char *cp; /* end of the name, e.g. before ']' */
1133: const char *res; /* the string to be substituted */
1.238 schwarze 1134: char *nbuf; /* new buffer to copy buf->buf to */
1.181 schwarze 1135: size_t maxl; /* expected length of the escape name */
1136: size_t naml; /* actual length of the escape name */
1.237 schwarze 1137: enum mandoc_esc esc; /* type of the escape sequence */
1138: int inaml; /* length returned from mandoc_escape() */
1.181 schwarze 1139: int expand_count; /* to avoid infinite loops */
1.206 schwarze 1140: int npos; /* position in numeric expression */
1.218 schwarze 1141: int arg_complete; /* argument not interrupted by eol */
1.303 schwarze 1142: int done; /* no more input available */
1.315 schwarze 1143: int deftype; /* type of definition to paste */
1.323 schwarze 1144: int rcsid; /* kind of RCS id seen */
1.327 schwarze 1145: char sign; /* increment number register */
1.206 schwarze 1146: char term; /* character terminating the escape */
1.94 kristaps 1147:
1.303 schwarze 1148: /* Search forward for comments. */
1149:
1150: done = 0;
1151: start = buf->buf + pos;
1152: for (stesc = buf->buf + pos; *stesc != '\0'; stesc++) {
1153: if (stesc[0] != r->escape || stesc[1] == '\0')
1154: continue;
1155: stesc++;
1156: if (*stesc != '"' && *stesc != '#')
1157: continue;
1.313 schwarze 1158:
1159: /* Comment found, look for RCS id. */
1160:
1.323 schwarze 1161: rcsid = 0;
1.313 schwarze 1162: if ((cp = strstr(stesc, "$" "OpenBSD")) != NULL) {
1.323 schwarze 1163: rcsid = 1 << MANDOC_OS_OPENBSD;
1.313 schwarze 1164: cp += 8;
1165: } else if ((cp = strstr(stesc, "$" "NetBSD")) != NULL) {
1.323 schwarze 1166: rcsid = 1 << MANDOC_OS_NETBSD;
1.313 schwarze 1167: cp += 7;
1168: }
1169: if (cp != NULL &&
1170: isalnum((unsigned char)*cp) == 0 &&
1.314 schwarze 1171: strchr(cp, '$') != NULL) {
1.323 schwarze 1172: if (r->man->meta.rcsids & rcsid)
1.314 schwarze 1173: mandoc_msg(MANDOCERR_RCS_REP, r->parse,
1174: ln, stesc + 1 - buf->buf, stesc + 1);
1.323 schwarze 1175: r->man->meta.rcsids |= rcsid;
1.314 schwarze 1176: }
1.313 schwarze 1177:
1178: /* Handle trailing whitespace. */
1179:
1.328 schwarze 1180: ep = strchr(stesc--, '\0') - 1;
1181: if (*ep == '\n') {
1.303 schwarze 1182: done = 1;
1.328 schwarze 1183: ep--;
1.303 schwarze 1184: }
1.328 schwarze 1185: if (*ep == ' ' || *ep == '\t')
1.303 schwarze 1186: mandoc_msg(MANDOCERR_SPACE_EOL, r->parse,
1.328 schwarze 1187: ln, ep - buf->buf, NULL);
1188:
1189: /*
1190: * Save comments preceding the title macro
1191: * in the syntax tree.
1192: */
1193:
1194: if (r->format == 0) {
1195: while (*ep == ' ' || *ep == '\t')
1196: ep--;
1197: ep[1] = '\0';
1198: n = roff_node_alloc(r->man,
1199: ln, stesc + 1 - buf->buf,
1200: ROFFT_COMMENT, TOKEN_NONE);
1201: n->string = mandoc_strdup(stesc + 2);
1202: roff_node_append(r->man, n);
1203: n->flags |= NODE_VALID | NODE_ENDED;
1204: r->man->next = ROFF_NEXT_SIBLING;
1205: }
1206:
1207: /* Discard comments. */
1208:
1.303 schwarze 1209: while (stesc > start && stesc[-1] == ' ')
1210: stesc--;
1211: *stesc = '\0';
1212: break;
1213: }
1214: if (stesc == start)
1215: return ROFF_CONT;
1216: stesc--;
1217:
1218: /* Notice the end of the input. */
1219:
1220: if (*stesc == '\n') {
1221: *stesc-- = '\0';
1222: done = 1;
1223: }
1224:
1.170 schwarze 1225: expand_count = 0;
1.303 schwarze 1226: while (stesc >= start) {
1.170 schwarze 1227:
1.205 schwarze 1228: /* Search backwards for the next backslash. */
1229:
1.303 schwarze 1230: if (*stesc != r->escape) {
1231: if (*stesc == '\\') {
1232: *stesc = '\0';
1233: buf->sz = mandoc_asprintf(&nbuf, "%s\\e%s",
1234: buf->buf, stesc + 1) + 1;
1235: start = nbuf + pos;
1236: stesc = nbuf + (stesc - buf->buf);
1237: free(buf->buf);
1238: buf->buf = nbuf;
1239: }
1240: stesc--;
1.205 schwarze 1241: continue;
1.303 schwarze 1242: }
1.205 schwarze 1243:
1244: /* If it is escaped, skip it. */
1245:
1246: for (cp = stesc - 1; cp >= start; cp--)
1.303 schwarze 1247: if (*cp != r->escape)
1.205 schwarze 1248: break;
1249:
1.238 schwarze 1250: if ((stesc - cp) % 2 == 0) {
1.303 schwarze 1251: while (stesc > cp)
1252: *stesc-- = '\\';
1.205 schwarze 1253: continue;
1.303 schwarze 1254: } else if (stesc[1] != '\0') {
1255: *stesc = '\\';
1256: } else {
1257: *stesc-- = '\0';
1258: if (done)
1259: continue;
1260: else
1261: return ROFF_APPEND;
1.205 schwarze 1262: }
1.108 schwarze 1263:
1.206 schwarze 1264: /* Decide whether to expand or to check only. */
1.108 schwarze 1265:
1.206 schwarze 1266: term = '\0';
1.205 schwarze 1267: cp = stesc + 1;
1.181 schwarze 1268: switch (*cp) {
1.207 schwarze 1269: case '*':
1.181 schwarze 1270: res = NULL;
1271: break;
1.207 schwarze 1272: case 'B':
1273: case 'w':
1.206 schwarze 1274: term = cp[1];
1275: /* FALLTHROUGH */
1.207 schwarze 1276: case 'n':
1.327 schwarze 1277: sign = cp[1];
1278: if (sign == '+' || sign == '-')
1279: cp++;
1.181 schwarze 1280: res = ubuf;
1281: break;
1282: default:
1.237 schwarze 1283: esc = mandoc_escape(&cp, &stnam, &inaml);
1284: if (esc == ESCAPE_ERROR ||
1285: (esc == ESCAPE_SPECIAL &&
1.279 schwarze 1286: mchars_spec2cp(stnam, inaml) < 0))
1.219 schwarze 1287: mandoc_vmsg(MANDOCERR_ESC_BAD,
1.238 schwarze 1288: r->parse, ln, (int)(stesc - buf->buf),
1.219 schwarze 1289: "%.*s", (int)(cp - stesc), stesc);
1.303 schwarze 1290: stesc--;
1.205 schwarze 1291: continue;
1.152 kristaps 1292: }
1293:
1.205 schwarze 1294: if (EXPAND_LIMIT < ++expand_count) {
1295: mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,
1.238 schwarze 1296: ln, (int)(stesc - buf->buf), NULL);
1.277 schwarze 1297: return ROFF_IGN;
1.205 schwarze 1298: }
1.108 schwarze 1299:
1300: /*
1301: * The third character decides the length
1.181 schwarze 1302: * of the name of the string or register.
1.108 schwarze 1303: * Save a pointer to the name.
1304: */
1305:
1.238 schwarze 1306: if (term == '\0') {
1.206 schwarze 1307: switch (*++cp) {
1.207 schwarze 1308: case '\0':
1.206 schwarze 1309: maxl = 0;
1310: break;
1.207 schwarze 1311: case '(':
1.206 schwarze 1312: cp++;
1313: maxl = 2;
1314: break;
1.207 schwarze 1315: case '[':
1.206 schwarze 1316: cp++;
1317: term = ']';
1318: maxl = 0;
1319: break;
1320: default:
1321: maxl = 1;
1322: break;
1323: }
1324: } else {
1325: cp += 2;
1.94 kristaps 1326: maxl = 0;
1327: }
1.108 schwarze 1328: stnam = cp;
1.94 kristaps 1329:
1.108 schwarze 1330: /* Advance to the end of the name. */
1.94 kristaps 1331:
1.253 schwarze 1332: naml = 0;
1.218 schwarze 1333: arg_complete = 1;
1.253 schwarze 1334: while (maxl == 0 || naml < maxl) {
1.238 schwarze 1335: if (*cp == '\0') {
1.219 schwarze 1336: mandoc_msg(MANDOCERR_ESC_BAD, r->parse,
1.238 schwarze 1337: ln, (int)(stesc - buf->buf), stesc);
1.218 schwarze 1338: arg_complete = 0;
1.206 schwarze 1339: break;
1.153 kristaps 1340: }
1.238 schwarze 1341: if (maxl == 0 && *cp == term) {
1.206 schwarze 1342: cp++;
1.253 schwarze 1343: break;
1344: }
1345: if (*cp++ != '\\' || stesc[1] != 'w') {
1346: naml++;
1347: continue;
1348: }
1349: switch (mandoc_escape(&cp, NULL, NULL)) {
1350: case ESCAPE_SPECIAL:
1351: case ESCAPE_UNICODE:
1352: case ESCAPE_NUMBERED:
1353: case ESCAPE_OVERSTRIKE:
1354: naml++;
1355: break;
1356: default:
1.94 kristaps 1357: break;
1.206 schwarze 1358: }
1.94 kristaps 1359: }
1360:
1.108 schwarze 1361: /*
1362: * Retrieve the replacement string; if it is
1363: * undefined, resume searching for escapes.
1364: */
1365:
1.206 schwarze 1366: switch (stesc[1]) {
1.207 schwarze 1367: case '*':
1.315 schwarze 1368: if (arg_complete) {
1369: deftype = ROFFDEF_USER | ROFFDEF_PRE;
1370: res = roff_getstrn(r, stnam, naml, &deftype);
1.331 schwarze 1371:
1372: /*
1373: * If not overriden, let \*(.T
1374: * through to the formatters.
1375: */
1376:
1377: if (res == NULL && naml == 2 &&
1378: stnam[0] == '.' && stnam[1] == 'T') {
1379: roff_setstrn(&r->strtab,
1380: ".T", 2, NULL, 0, 0);
1381: stesc--;
1382: continue;
1383: }
1.315 schwarze 1384: }
1.206 schwarze 1385: break;
1.207 schwarze 1386: case 'B':
1.206 schwarze 1387: npos = 0;
1.218 schwarze 1388: ubuf[0] = arg_complete &&
1.261 schwarze 1389: roff_evalnum(r, ln, stnam, &npos,
1390: NULL, ROFFNUM_SCALE) &&
1.218 schwarze 1391: stnam + npos + 1 == cp ? '1' : '0';
1.206 schwarze 1392: ubuf[1] = '\0';
1393: break;
1.207 schwarze 1394: case 'n':
1.218 schwarze 1395: if (arg_complete)
1396: (void)snprintf(ubuf, sizeof(ubuf), "%d",
1.327 schwarze 1397: roff_getregn(r, stnam, naml, sign));
1.218 schwarze 1398: else
1399: ubuf[0] = '\0';
1.206 schwarze 1400: break;
1.207 schwarze 1401: case 'w':
1.218 schwarze 1402: /* use even incomplete args */
1.208 schwarze 1403: (void)snprintf(ubuf, sizeof(ubuf), "%d",
1.206 schwarze 1404: 24 * (int)naml);
1405: break;
1406: }
1.94 kristaps 1407:
1.238 schwarze 1408: if (res == NULL) {
1.219 schwarze 1409: mandoc_vmsg(MANDOCERR_STR_UNDEF,
1.238 schwarze 1410: r->parse, ln, (int)(stesc - buf->buf),
1.219 schwarze 1411: "%.*s", (int)naml, stnam);
1.142 kristaps 1412: res = "";
1.246 schwarze 1413: } else if (buf->sz + strlen(res) > SHRT_MAX) {
1414: mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,
1415: ln, (int)(stesc - buf->buf), NULL);
1.277 schwarze 1416: return ROFF_IGN;
1.94 kristaps 1417: }
1418:
1.108 schwarze 1419: /* Replace the escape sequence by the string. */
1420:
1.209 schwarze 1421: *stesc = '\0';
1.238 schwarze 1422: buf->sz = mandoc_asprintf(&nbuf, "%s%s%s",
1423: buf->buf, res, cp) + 1;
1.94 kristaps 1424:
1.205 schwarze 1425: /* Prepare for the next replacement. */
1.94 kristaps 1426:
1.205 schwarze 1427: start = nbuf + pos;
1.238 schwarze 1428: stesc = nbuf + (stesc - buf->buf) + strlen(res);
1429: free(buf->buf);
1430: buf->buf = nbuf;
1.154 kristaps 1431: }
1.277 schwarze 1432: return ROFF_CONT;
1.154 kristaps 1433: }
1434:
1435: /*
1.275 schwarze 1436: * Process text streams.
1.154 kristaps 1437: */
1438: static enum rofferr
1.305 schwarze 1439: roff_parsetext(struct roff *r, struct buf *buf, int pos, int *offs)
1.154 kristaps 1440: {
1441: size_t sz;
1442: const char *start;
1.178 schwarze 1443: char *p;
1444: int isz;
1.154 kristaps 1445: enum mandoc_esc esc;
1446:
1.275 schwarze 1447: /* Spring the input line trap. */
1448:
1449: if (roffit_lines == 1) {
1450: isz = mandoc_asprintf(&p, "%s\n.%s", buf->buf, roffit_macro);
1451: free(buf->buf);
1452: buf->buf = p;
1453: buf->sz = isz + 1;
1454: *offs = 0;
1455: free(roffit_macro);
1456: roffit_lines = 0;
1.277 schwarze 1457: return ROFF_REPARSE;
1.275 schwarze 1458: } else if (roffit_lines > 1)
1459: --roffit_lines;
1460:
1.305 schwarze 1461: if (roffce_node != NULL && buf->buf[pos] != '\0') {
1462: if (roffce_lines < 1) {
1463: r->man->last = roffce_node;
1464: r->man->next = ROFF_NEXT_SIBLING;
1465: roffce_lines = 0;
1466: roffce_node = NULL;
1467: } else
1468: roffce_lines--;
1469: }
1470:
1.275 schwarze 1471: /* Convert all breakable hyphens into ASCII_HYPH. */
1472:
1.238 schwarze 1473: start = p = buf->buf + pos;
1.154 kristaps 1474:
1.238 schwarze 1475: while (*p != '\0') {
1.154 kristaps 1476: sz = strcspn(p, "-\\");
1477: p += sz;
1478:
1.238 schwarze 1479: if (*p == '\0')
1.159 kristaps 1480: break;
1481:
1.238 schwarze 1482: if (*p == '\\') {
1.154 kristaps 1483: /* Skip over escapes. */
1484: p++;
1.189 schwarze 1485: esc = mandoc_escape((const char **)&p, NULL, NULL);
1.238 schwarze 1486: if (esc == ESCAPE_ERROR)
1.154 kristaps 1487: break;
1.264 schwarze 1488: while (*p == '-')
1489: p++;
1.155 kristaps 1490: continue;
1.159 kristaps 1491: } else if (p == start) {
1.158 kristaps 1492: p++;
1.155 kristaps 1493: continue;
1.158 kristaps 1494: }
1.155 kristaps 1495:
1.171 schwarze 1496: if (isalpha((unsigned char)p[-1]) &&
1497: isalpha((unsigned char)p[1]))
1.155 kristaps 1498: *p = ASCII_HYPH;
1499: p++;
1.94 kristaps 1500: }
1.277 schwarze 1501: return ROFF_CONT;
1.94 kristaps 1502: }
1503:
1.67 kristaps 1504: enum rofferr
1.238 schwarze 1505: roff_parseln(struct roff *r, int ln, struct buf *buf, int *offs)
1.67 kristaps 1506: {
1.294 schwarze 1507: enum roff_tok t;
1.109 kristaps 1508: enum rofferr e;
1.238 schwarze 1509: int pos; /* parse point */
1.243 schwarze 1510: int spos; /* saved parse point for messages */
1.238 schwarze 1511: int ppos; /* original offset in buf->buf */
1512: int ctl; /* macro line (boolean) */
1513:
1514: ppos = pos = *offs;
1.79 kristaps 1515:
1.230 schwarze 1516: /* Handle in-line equation delimiters. */
1517:
1.236 schwarze 1518: if (r->tbl == NULL &&
1519: r->last_eqn != NULL && r->last_eqn->delim &&
1.230 schwarze 1520: (r->eqn == NULL || r->eqn_inline)) {
1.238 schwarze 1521: e = roff_eqndelim(r, buf, pos);
1.230 schwarze 1522: if (e == ROFF_REPARSE)
1.277 schwarze 1523: return e;
1.230 schwarze 1524: assert(e == ROFF_CONT);
1525: }
1526:
1527: /* Expand some escape sequences. */
1.94 kristaps 1528:
1.238 schwarze 1529: e = roff_res(r, buf, ln, pos);
1.303 schwarze 1530: if (e == ROFF_IGN || e == ROFF_APPEND)
1.277 schwarze 1531: return e;
1.238 schwarze 1532: assert(e == ROFF_CONT);
1.94 kristaps 1533:
1.238 schwarze 1534: ctl = roff_getcontrol(r, buf->buf, &pos);
1.130 kristaps 1535:
1.94 kristaps 1536: /*
1.79 kristaps 1537: * First, if a scope is open and we're not a macro, pass the
1.252 schwarze 1538: * text through the macro's filter.
1539: * Equations process all content themselves.
1540: * Tables process almost all content themselves, but we want
1541: * to warn about macros before passing it there.
1.79 kristaps 1542: */
1.74 kristaps 1543:
1.252 schwarze 1544: if (r->last != NULL && ! ctl) {
1.78 kristaps 1545: t = r->last->tok;
1.238 schwarze 1546: e = (*roffs[t].text)(r, t, buf, ln, pos, pos, offs);
1.294 schwarze 1547: if (e == ROFF_IGN)
1.277 schwarze 1548: return e;
1.294 schwarze 1549: assert(e == ROFF_CONT);
1.182 schwarze 1550: }
1.319 schwarze 1551: if (r->eqn != NULL && strncmp(buf->buf + ppos, ".EN", 3)) {
1552: eqn_read(r->eqn, buf->buf + ppos);
1553: return ROFF_IGN;
1554: }
1.321 schwarze 1555: if (r->tbl != NULL && (ctl == 0 || buf->buf[pos] == '\0')) {
1556: tbl_read(r->tbl, ln, buf->buf, ppos);
1557: roff_addtbl(r->man, r->tbl);
1558: return ROFF_IGN;
1559: }
1.252 schwarze 1560: if ( ! ctl)
1.305 schwarze 1561: return roff_parsetext(r, buf, pos, offs);
1.228 schwarze 1562:
1563: /* Skip empty request lines. */
1564:
1.238 schwarze 1565: if (buf->buf[pos] == '"') {
1.228 schwarze 1566: mandoc_msg(MANDOCERR_COMMENT_BAD, r->parse,
1567: ln, pos, NULL);
1.277 schwarze 1568: return ROFF_IGN;
1.238 schwarze 1569: } else if (buf->buf[pos] == '\0')
1.277 schwarze 1570: return ROFF_IGN;
1.67 kristaps 1571:
1.79 kristaps 1572: /*
1573: * If a scope is open, go to the child handler for that macro,
1574: * as it may want to preprocess before doing anything with it.
1.125 kristaps 1575: * Don't do so if an equation is open.
1.79 kristaps 1576: */
1.78 kristaps 1577:
1.79 kristaps 1578: if (r->last) {
1579: t = r->last->tok;
1.277 schwarze 1580: return (*roffs[t].sub)(r, t, buf, ln, ppos, pos, offs);
1.79 kristaps 1581: }
1.78 kristaps 1582:
1.243 schwarze 1583: /* No scope is open. This is a new request or macro. */
1584:
1585: spos = pos;
1586: t = roff_parse(r, buf->buf, &pos, ln, ppos);
1587:
1588: /* Tables ignore most macros. */
1589:
1.308 schwarze 1590: if (r->tbl != NULL && (t == TOKEN_NONE || t == ROFF_TS ||
1.309 schwarze 1591: t == ROFF_br || t == ROFF_ce || t == ROFF_rj || t == ROFF_sp)) {
1.243 schwarze 1592: mandoc_msg(MANDOCERR_TBLMACRO, r->parse,
1593: ln, pos, buf->buf + spos);
1.308 schwarze 1594: if (t != TOKEN_NONE)
1.277 schwarze 1595: return ROFF_IGN;
1.257 schwarze 1596: while (buf->buf[pos] != '\0' && buf->buf[pos] != ' ')
1597: pos++;
1.291 schwarze 1598: while (buf->buf[pos] == ' ')
1.257 schwarze 1599: pos++;
1.321 schwarze 1600: tbl_read(r->tbl, ln, buf->buf, pos);
1601: roff_addtbl(r->man, r->tbl);
1602: return ROFF_IGN;
1.243 schwarze 1603: }
1604:
1.305 schwarze 1605: /* For now, let high level macros abort .ce mode. */
1606:
1607: if (ctl && roffce_node != NULL &&
1.324 schwarze 1608: (t == TOKEN_NONE || t == ROFF_Dd || t == ROFF_EQ ||
1609: t == ROFF_TH || t == ROFF_TS)) {
1.305 schwarze 1610: r->man->last = roffce_node;
1611: r->man->next = ROFF_NEXT_SIBLING;
1612: roffce_lines = 0;
1613: roffce_node = NULL;
1614: }
1615:
1.79 kristaps 1616: /*
1.243 schwarze 1617: * This is neither a roff request nor a user-defined macro.
1618: * Let the standard macro set parsers handle it.
1.79 kristaps 1619: */
1.67 kristaps 1620:
1.294 schwarze 1621: if (t == TOKEN_NONE)
1.277 schwarze 1622: return ROFF_CONT;
1.243 schwarze 1623:
1624: /* Execute a roff request or a user defined macro. */
1.67 kristaps 1625:
1.296 schwarze 1626: return (*roffs[t].proc)(r, t, buf, ln, spos, pos, offs);
1.74 kristaps 1627: }
1628:
1.117 kristaps 1629: void
1.74 kristaps 1630: roff_endparse(struct roff *r)
1631: {
1.321 schwarze 1632: if (r->last != NULL)
1.221 schwarze 1633: mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,
1634: r->last->line, r->last->col,
1.295 schwarze 1635: roff_name[r->last->tok]);
1.117 kristaps 1636:
1.321 schwarze 1637: if (r->eqn != NULL) {
1.221 schwarze 1638: mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,
1.319 schwarze 1639: r->eqn->node->line, r->eqn->node->pos, "EQ");
1640: eqn_parse(r->eqn);
1641: r->eqn = NULL;
1.125 kristaps 1642: }
1643:
1.321 schwarze 1644: if (r->tbl != NULL) {
1.221 schwarze 1645: mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,
1646: r->tbl->line, r->tbl->pos, "TS");
1.321 schwarze 1647: tbl_end(r->tbl);
1648: r->tbl = NULL;
1.117 kristaps 1649: }
1.67 kristaps 1650: }
1651:
1652: /*
1653: * Parse a roff node's type from the input buffer. This must be in the
1654: * form of ".foo xxx" in the usual way.
1655: */
1.294 schwarze 1656: static enum roff_tok
1.214 schwarze 1657: roff_parse(struct roff *r, char *buf, int *pos, int ln, int ppos)
1.67 kristaps 1658: {
1.214 schwarze 1659: char *cp;
1.106 kristaps 1660: const char *mac;
1661: size_t maclen;
1.315 schwarze 1662: int deftype;
1.294 schwarze 1663: enum roff_tok t;
1.67 kristaps 1664:
1.214 schwarze 1665: cp = buf + *pos;
1666:
1667: if ('\0' == *cp || '"' == *cp || '\t' == *cp || ' ' == *cp)
1.294 schwarze 1668: return TOKEN_NONE;
1.67 kristaps 1669:
1.214 schwarze 1670: mac = cp;
1671: maclen = roff_getname(r, &cp, ln, ppos);
1.67 kristaps 1672:
1.315 schwarze 1673: deftype = ROFFDEF_USER | ROFFDEF_REN;
1674: r->current_string = roff_getstrn(r, mac, maclen, &deftype);
1675: switch (deftype) {
1676: case ROFFDEF_USER:
1677: t = ROFF_USERDEF;
1678: break;
1679: case ROFFDEF_REN:
1680: t = ROFF_RENAMED;
1681: break;
1682: default:
1683: t = roffhash_find(r->reqtab, mac, maclen);
1684: break;
1685: }
1.294 schwarze 1686: if (t != TOKEN_NONE)
1.214 schwarze 1687: *pos = cp - buf;
1.325 schwarze 1688: else if (deftype == ROFFDEF_UNDEF) {
1689: /* Using an undefined macro defines it to be empty. */
1690: roff_setstrn(&r->strtab, mac, maclen, "", 0, 0);
1691: roff_setstrn(&r->rentab, mac, maclen, NULL, 0, 0);
1692: }
1.277 schwarze 1693: return t;
1.67 kristaps 1694: }
1695:
1.266 schwarze 1696: /* --- handling of request blocks ----------------------------------------- */
1697:
1.67 kristaps 1698: static enum rofferr
1.76 kristaps 1699: roff_cblock(ROFF_ARGS)
1.67 kristaps 1700: {
1701:
1.79 kristaps 1702: /*
1703: * A block-close `..' should only be invoked as a child of an
1704: * ignore macro, otherwise raise a warning and just ignore it.
1705: */
1706:
1.238 schwarze 1707: if (r->last == NULL) {
1.221 schwarze 1708: mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
1709: ln, ppos, "..");
1.277 schwarze 1710: return ROFF_IGN;
1.76 kristaps 1711: }
1.67 kristaps 1712:
1.81 kristaps 1713: switch (r->last->tok) {
1.207 schwarze 1714: case ROFF_am:
1.220 schwarze 1715: /* ROFF_am1 is remapped to ROFF_am in roff_block(). */
1.207 schwarze 1716: case ROFF_ami:
1717: case ROFF_de:
1.108 schwarze 1718: /* ROFF_de1 is remapped to ROFF_de in roff_block(). */
1.207 schwarze 1719: case ROFF_dei:
1720: case ROFF_ig:
1.81 kristaps 1721: break;
1722: default:
1.221 schwarze 1723: mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
1724: ln, ppos, "..");
1.277 schwarze 1725: return ROFF_IGN;
1.76 kristaps 1726: }
1.67 kristaps 1727:
1.238 schwarze 1728: if (buf->buf[pos] != '\0')
1.217 schwarze 1729: mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
1.238 schwarze 1730: ".. %s", buf->buf + pos);
1.71 kristaps 1731:
1732: roffnode_pop(r);
1.76 kristaps 1733: roffnode_cleanscope(r);
1.277 schwarze 1734: return ROFF_IGN;
1.71 kristaps 1735:
1.67 kristaps 1736: }
1737:
1.76 kristaps 1738: static void
1739: roffnode_cleanscope(struct roff *r)
1.67 kristaps 1740: {
1741:
1.76 kristaps 1742: while (r->last) {
1.173 schwarze 1743: if (--r->last->endspan != 0)
1.76 kristaps 1744: break;
1745: roffnode_pop(r);
1746: }
1.67 kristaps 1747: }
1748:
1.195 schwarze 1749: static void
1750: roff_ccond(struct roff *r, int ln, int ppos)
1.74 kristaps 1751: {
1752:
1.76 kristaps 1753: if (NULL == r->last) {
1.221 schwarze 1754: mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
1755: ln, ppos, "\\}");
1.195 schwarze 1756: return;
1.76 kristaps 1757: }
1758:
1.82 kristaps 1759: switch (r->last->tok) {
1.207 schwarze 1760: case ROFF_el:
1761: case ROFF_ie:
1762: case ROFF_if:
1.82 kristaps 1763: break;
1764: default:
1.221 schwarze 1765: mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
1766: ln, ppos, "\\}");
1.195 schwarze 1767: return;
1.75 kristaps 1768: }
1769:
1.76 kristaps 1770: if (r->last->endspan > -1) {
1.221 schwarze 1771: mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
1772: ln, ppos, "\\}");
1.195 schwarze 1773: return;
1.76 kristaps 1774: }
1775:
1.75 kristaps 1776: roffnode_pop(r);
1.76 kristaps 1777: roffnode_cleanscope(r);
1.195 schwarze 1778: return;
1.76 kristaps 1779: }
1780:
1781: static enum rofferr
1.80 kristaps 1782: roff_block(ROFF_ARGS)
1.76 kristaps 1783: {
1.315 schwarze 1784: const char *name, *value;
1785: char *call, *cp, *iname, *rname;
1786: size_t csz, namesz, rsz;
1787: int deftype;
1.106 kristaps 1788:
1.220 schwarze 1789: /* Ignore groff compatibility mode for now. */
1.76 kristaps 1790:
1.238 schwarze 1791: if (tok == ROFF_de1)
1.220 schwarze 1792: tok = ROFF_de;
1.251 schwarze 1793: else if (tok == ROFF_dei1)
1794: tok = ROFF_dei;
1.238 schwarze 1795: else if (tok == ROFF_am1)
1.220 schwarze 1796: tok = ROFF_am;
1.251 schwarze 1797: else if (tok == ROFF_ami1)
1798: tok = ROFF_ami;
1.220 schwarze 1799:
1800: /* Parse the macro name argument. */
1801:
1.238 schwarze 1802: cp = buf->buf + pos;
1803: if (tok == ROFF_ig) {
1.220 schwarze 1804: iname = NULL;
1805: namesz = 0;
1806: } else {
1807: iname = cp;
1808: namesz = roff_getname(r, &cp, ln, ppos);
1809: iname[namesz] = '\0';
1810: }
1.107 kristaps 1811:
1.220 schwarze 1812: /* Resolve the macro name argument if it is indirect. */
1.107 kristaps 1813:
1.238 schwarze 1814: if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) {
1.315 schwarze 1815: deftype = ROFFDEF_USER;
1816: name = roff_getstrn(r, iname, namesz, &deftype);
1817: if (name == NULL) {
1.220 schwarze 1818: mandoc_vmsg(MANDOCERR_STR_UNDEF,
1.238 schwarze 1819: r->parse, ln, (int)(iname - buf->buf),
1.220 schwarze 1820: "%.*s", (int)namesz, iname);
1821: namesz = 0;
1822: } else
1823: namesz = strlen(name);
1824: } else
1825: name = iname;
1.107 kristaps 1826:
1.238 schwarze 1827: if (namesz == 0 && tok != ROFF_ig) {
1.220 schwarze 1828: mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse,
1.295 schwarze 1829: ln, ppos, roff_name[tok]);
1.277 schwarze 1830: return ROFF_IGN;
1.220 schwarze 1831: }
1.80 kristaps 1832:
1.106 kristaps 1833: roffnode_push(r, tok, name, ln, ppos);
1834:
1835: /*
1836: * At the beginning of a `de' macro, clear the existing string
1837: * with the same name, if there is one. New content will be
1.193 schwarze 1838: * appended from roff_block_text() in multiline mode.
1.106 kristaps 1839: */
1.107 kristaps 1840:
1.311 schwarze 1841: if (tok == ROFF_de || tok == ROFF_dei) {
1.213 schwarze 1842: roff_setstrn(&r->strtab, name, namesz, "", 0, 0);
1.311 schwarze 1843: roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
1.315 schwarze 1844: } else if (tok == ROFF_am || tok == ROFF_ami) {
1845: deftype = ROFFDEF_ANY;
1846: value = roff_getstrn(r, iname, namesz, &deftype);
1847: switch (deftype) { /* Before appending, ... */
1848: case ROFFDEF_PRE: /* copy predefined to user-defined. */
1849: roff_setstrn(&r->strtab, name, namesz,
1850: value, strlen(value), 0);
1851: break;
1852: case ROFFDEF_REN: /* call original standard macro. */
1853: csz = mandoc_asprintf(&call, ".%.*s \\$* \\\"\n",
1854: (int)strlen(value), value);
1855: roff_setstrn(&r->strtab, name, namesz, call, csz, 0);
1856: roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
1857: free(call);
1858: break;
1859: case ROFFDEF_STD: /* rename and call standard macro. */
1860: rsz = mandoc_asprintf(&rname, "__%s_renamed", name);
1861: roff_setstrn(&r->rentab, rname, rsz, name, namesz, 0);
1862: csz = mandoc_asprintf(&call, ".%.*s \\$* \\\"\n",
1863: (int)rsz, rname);
1864: roff_setstrn(&r->strtab, name, namesz, call, csz, 0);
1865: free(call);
1866: free(rname);
1867: break;
1868: default:
1869: break;
1870: }
1.311 schwarze 1871: }
1.76 kristaps 1872:
1.238 schwarze 1873: if (*cp == '\0')
1.277 schwarze 1874: return ROFF_IGN;
1.78 kristaps 1875:
1.220 schwarze 1876: /* Get the custom end marker. */
1.107 kristaps 1877:
1.220 schwarze 1878: iname = cp;
1.213 schwarze 1879: namesz = roff_getname(r, &cp, ln, ppos);
1.220 schwarze 1880:
1881: /* Resolve the end marker if it is indirect. */
1882:
1.238 schwarze 1883: if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) {
1.315 schwarze 1884: deftype = ROFFDEF_USER;
1885: name = roff_getstrn(r, iname, namesz, &deftype);
1886: if (name == NULL) {
1.220 schwarze 1887: mandoc_vmsg(MANDOCERR_STR_UNDEF,
1.238 schwarze 1888: r->parse, ln, (int)(iname - buf->buf),
1.220 schwarze 1889: "%.*s", (int)namesz, iname);
1890: namesz = 0;
1891: } else
1892: namesz = strlen(name);
1893: } else
1894: name = iname;
1895:
1.213 schwarze 1896: if (namesz)
1897: r->last->end = mandoc_strndup(name, namesz);
1.78 kristaps 1898:
1.238 schwarze 1899: if (*cp != '\0')
1.217 schwarze 1900: mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse,
1.295 schwarze 1901: ln, pos, ".%s ... %s", roff_name[tok], cp);
1.74 kristaps 1902:
1.277 schwarze 1903: return ROFF_IGN;
1.78 kristaps 1904: }
1905:
1906: static enum rofferr
1.80 kristaps 1907: roff_block_sub(ROFF_ARGS)
1.79 kristaps 1908: {
1.294 schwarze 1909: enum roff_tok t;
1.79 kristaps 1910: int i, j;
1911:
1912: /*
1913: * First check whether a custom macro exists at this level. If
1914: * it does, then check against it. This is some of groff's
1915: * stranger behaviours. If we encountered a custom end-scope
1916: * tag and that tag also happens to be a "real" macro, then we
1917: * need to try interpreting it again as a real macro. If it's
1918: * not, then return ignore. Else continue.
1919: */
1920:
1921: if (r->last->end) {
1.130 kristaps 1922: for (i = pos, j = 0; r->last->end[j]; j++, i++)
1.238 schwarze 1923: if (buf->buf[i] != r->last->end[j])
1.79 kristaps 1924: break;
1925:
1.238 schwarze 1926: if (r->last->end[j] == '\0' &&
1927: (buf->buf[i] == '\0' ||
1928: buf->buf[i] == ' ' ||
1929: buf->buf[i] == '\t')) {
1.79 kristaps 1930: roffnode_pop(r);
1931: roffnode_cleanscope(r);
1932:
1.238 schwarze 1933: while (buf->buf[i] == ' ' || buf->buf[i] == '\t')
1.130 kristaps 1934: i++;
1935:
1936: pos = i;
1.238 schwarze 1937: if (roff_parse(r, buf->buf, &pos, ln, ppos) !=
1.294 schwarze 1938: TOKEN_NONE)
1.277 schwarze 1939: return ROFF_RERUN;
1940: return ROFF_IGN;
1.79 kristaps 1941: }
1942: }
1943:
1944: /*
1945: * If we have no custom end-query or lookup failed, then try
1946: * pulling it out of the hashtable.
1947: */
1948:
1.238 schwarze 1949: t = roff_parse(r, buf->buf, &pos, ln, ppos);
1.79 kristaps 1950:
1.238 schwarze 1951: if (t != ROFF_cblock) {
1952: if (tok != ROFF_ig)
1953: roff_setstr(r, r->last->name, buf->buf + ppos, 2);
1.277 schwarze 1954: return ROFF_IGN;
1.106 kristaps 1955: }
1.79 kristaps 1956:
1.277 schwarze 1957: return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs);
1.79 kristaps 1958: }
1959:
1960: static enum rofferr
1.80 kristaps 1961: roff_block_text(ROFF_ARGS)
1.78 kristaps 1962: {
1963:
1.238 schwarze 1964: if (tok != ROFF_ig)
1965: roff_setstr(r, r->last->name, buf->buf + pos, 2);
1.106 kristaps 1966:
1.277 schwarze 1967: return ROFF_IGN;
1.78 kristaps 1968: }
1969:
1970: static enum rofferr
1.82 kristaps 1971: roff_cond_sub(ROFF_ARGS)
1972: {
1.294 schwarze 1973: enum roff_tok t;
1.139 kristaps 1974: char *ep;
1.198 schwarze 1975: int rr;
1.82 kristaps 1976:
1977: rr = r->last->rule;
1.139 kristaps 1978: roffnode_cleanscope(r);
1.144 kristaps 1979:
1.196 schwarze 1980: /*
1981: * If `\}' occurs on a macro line without a preceding macro,
1982: * drop the line completely.
1983: */
1984:
1.238 schwarze 1985: ep = buf->buf + pos;
1986: if (ep[0] == '\\' && ep[1] == '}')
1.198 schwarze 1987: rr = 0;
1.196 schwarze 1988:
1.177 schwarze 1989: /* Always check for the closing delimiter `\}'. */
1.144 kristaps 1990:
1.238 schwarze 1991: while ((ep = strchr(ep, '\\')) != NULL) {
1.318 schwarze 1992: switch (ep[1]) {
1993: case '}':
1994: memmove(ep, ep + 2, strlen(ep + 2) + 1);
1995: roff_ccond(r, ln, ep - buf->buf);
1996: break;
1997: case '\0':
1998: ++ep;
1999: break;
2000: default:
2001: ep += 2;
2002: break;
1.197 schwarze 2003: }
1.177 schwarze 2004: }
1.318 schwarze 2005:
2006: /*
2007: * Fully handle known macros when they are structurally
2008: * required or when the conditional evaluated to true.
2009: */
2010:
2011: t = roff_parse(r, buf->buf, &pos, ln, ppos);
2012: return t != TOKEN_NONE && (rr || roffs[t].flags & ROFFMAC_STRUCT)
2013: ? (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs) : rr
2014: ? ROFF_CONT : ROFF_IGN;
1.82 kristaps 2015: }
2016:
2017: static enum rofferr
2018: roff_cond_text(ROFF_ARGS)
1.78 kristaps 2019: {
1.140 kristaps 2020: char *ep;
1.198 schwarze 2021: int rr;
1.82 kristaps 2022:
2023: rr = r->last->rule;
1.140 kristaps 2024: roffnode_cleanscope(r);
1.82 kristaps 2025:
1.238 schwarze 2026: ep = buf->buf + pos;
2027: while ((ep = strchr(ep, '\\')) != NULL) {
2028: if (*(++ep) == '}') {
1.197 schwarze 2029: *ep = '&';
1.238 schwarze 2030: roff_ccond(r, ln, ep - buf->buf - 1);
1.197 schwarze 2031: }
1.247 schwarze 2032: if (*ep != '\0')
2033: ++ep;
1.78 kristaps 2034: }
1.277 schwarze 2035: return rr ? ROFF_CONT : ROFF_IGN;
1.74 kristaps 2036: }
2037:
1.266 schwarze 2038: /* --- handling of numeric and conditional expressions -------------------- */
2039:
1.204 schwarze 2040: /*
2041: * Parse a single signed integer number. Stop at the first non-digit.
2042: * If there is at least one digit, return success and advance the
2043: * parse point, else return failure and let the parse point unchanged.
2044: * Ignore overflows, treat them just like the C language.
2045: */
1.184 schwarze 2046: static int
1.261 schwarze 2047: roff_getnum(const char *v, int *pos, int *res, int flags)
1.184 schwarze 2048: {
1.261 schwarze 2049: int myres, scaled, n, p;
1.206 schwarze 2050:
2051: if (NULL == res)
2052: res = &myres;
1.184 schwarze 2053:
2054: p = *pos;
2055: n = v[p] == '-';
1.261 schwarze 2056: if (n || v[p] == '+')
1.184 schwarze 2057: p++;
2058:
1.261 schwarze 2059: if (flags & ROFFNUM_WHITE)
2060: while (isspace((unsigned char)v[p]))
2061: p++;
2062:
1.184 schwarze 2063: for (*res = 0; isdigit((unsigned char)v[p]); p++)
1.204 schwarze 2064: *res = 10 * *res + v[p] - '0';
1.184 schwarze 2065: if (p == *pos + n)
2066: return 0;
2067:
2068: if (n)
2069: *res = -*res;
2070:
1.254 schwarze 2071: /* Each number may be followed by one optional scaling unit. */
2072:
2073: switch (v[p]) {
2074: case 'f':
1.261 schwarze 2075: scaled = *res * 65536;
1.254 schwarze 2076: break;
2077: case 'i':
1.261 schwarze 2078: scaled = *res * 240;
1.254 schwarze 2079: break;
2080: case 'c':
1.261 schwarze 2081: scaled = *res * 240 / 2.54;
1.254 schwarze 2082: break;
2083: case 'v':
2084: case 'P':
1.261 schwarze 2085: scaled = *res * 40;
1.254 schwarze 2086: break;
2087: case 'm':
2088: case 'n':
1.261 schwarze 2089: scaled = *res * 24;
1.254 schwarze 2090: break;
2091: case 'p':
1.261 schwarze 2092: scaled = *res * 10 / 3;
1.254 schwarze 2093: break;
2094: case 'u':
1.261 schwarze 2095: scaled = *res;
1.254 schwarze 2096: break;
2097: case 'M':
1.261 schwarze 2098: scaled = *res * 6 / 25;
1.254 schwarze 2099: break;
2100: default:
1.261 schwarze 2101: scaled = *res;
1.254 schwarze 2102: p--;
2103: break;
2104: }
1.261 schwarze 2105: if (flags & ROFFNUM_SCALE)
2106: *res = scaled;
1.254 schwarze 2107:
2108: *pos = p + 1;
1.277 schwarze 2109: return 1;
1.184 schwarze 2110: }
2111:
1.198 schwarze 2112: /*
2113: * Evaluate a string comparison condition.
2114: * The first character is the delimiter.
2115: * Succeed if the string up to its second occurrence
2116: * matches the string up to its third occurence.
2117: * Advance the cursor after the third occurrence
2118: * or lacking that, to the end of the line.
2119: */
2120: static int
2121: roff_evalstrcond(const char *v, int *pos)
2122: {
2123: const char *s1, *s2, *s3;
2124: int match;
2125:
2126: match = 0;
2127: s1 = v + *pos; /* initial delimiter */
2128: s2 = s1 + 1; /* for scanning the first string */
2129: s3 = strchr(s2, *s1); /* for scanning the second string */
2130:
2131: if (NULL == s3) /* found no middle delimiter */
2132: goto out;
2133:
2134: while ('\0' != *++s3) {
2135: if (*s2 != *s3) { /* mismatch */
2136: s3 = strchr(s3, *s1);
2137: break;
2138: }
2139: if (*s3 == *s1) { /* found the final delimiter */
2140: match = 1;
2141: break;
2142: }
2143: s2++;
2144: }
2145:
2146: out:
2147: if (NULL == s3)
2148: s3 = strchr(s2, '\0');
1.242 schwarze 2149: else if (*s3 != '\0')
1.198 schwarze 2150: s3++;
2151: *pos = s3 - v;
1.277 schwarze 2152: return match;
1.198 schwarze 2153: }
2154:
1.204 schwarze 2155: /*
2156: * Evaluate an optionally negated single character, numerical,
2157: * or string condition.
2158: */
1.198 schwarze 2159: static int
1.271 schwarze 2160: roff_evalcond(struct roff *r, int ln, char *v, int *pos)
1.88 kristaps 2161: {
1.271 schwarze 2162: char *cp, *name;
2163: size_t sz;
1.315 schwarze 2164: int deftype, number, savepos, istrue, wanttrue;
1.88 kristaps 2165:
1.198 schwarze 2166: if ('!' == v[*pos]) {
2167: wanttrue = 0;
2168: (*pos)++;
2169: } else
2170: wanttrue = 1;
2171:
1.88 kristaps 2172: switch (v[*pos]) {
1.240 schwarze 2173: case '\0':
1.277 schwarze 2174: return 0;
1.207 schwarze 2175: case 'n':
2176: case 'o':
1.88 kristaps 2177: (*pos)++;
1.277 schwarze 2178: return wanttrue;
1.207 schwarze 2179: case 'c':
2180: case 'e':
2181: case 't':
1.239 schwarze 2182: case 'v':
1.88 kristaps 2183: (*pos)++;
1.277 schwarze 2184: return !wanttrue;
1.310 schwarze 2185: case 'd':
1.271 schwarze 2186: case 'r':
1.310 schwarze 2187: cp = v + *pos + 1;
2188: while (*cp == ' ')
2189: cp++;
2190: name = cp;
2191: sz = roff_getname(r, &cp, ln, cp - v);
1.315 schwarze 2192: if (sz == 0)
2193: istrue = 0;
2194: else if (v[*pos] == 'r')
2195: istrue = roff_hasregn(r, name, sz);
2196: else {
2197: deftype = ROFFDEF_ANY;
2198: roff_getstrn(r, name, sz, &deftype);
2199: istrue = !!deftype;
2200: }
1.271 schwarze 2201: *pos = cp - v;
1.310 schwarze 2202: return istrue == wanttrue;
1.88 kristaps 2203: default:
2204: break;
2205: }
2206:
1.241 schwarze 2207: savepos = *pos;
1.261 schwarze 2208: if (roff_evalnum(r, ln, v, pos, &number, ROFFNUM_SCALE))
1.277 schwarze 2209: return (number > 0) == wanttrue;
1.241 schwarze 2210: else if (*pos == savepos)
1.277 schwarze 2211: return roff_evalstrcond(v, pos) == wanttrue;
1.204 schwarze 2212: else
1.277 schwarze 2213: return 0;
1.88 kristaps 2214: }
2215:
1.74 kristaps 2216: static enum rofferr
1.103 kristaps 2217: roff_line_ignore(ROFF_ARGS)
1.89 kristaps 2218: {
1.123 schwarze 2219:
1.277 schwarze 2220: return ROFF_IGN;
1.89 kristaps 2221: }
2222:
1.104 kristaps 2223: static enum rofferr
1.251 schwarze 2224: roff_insec(ROFF_ARGS)
2225: {
2226:
2227: mandoc_msg(MANDOCERR_REQ_INSEC, r->parse,
1.295 schwarze 2228: ln, ppos, roff_name[tok]);
1.277 schwarze 2229: return ROFF_IGN;
1.251 schwarze 2230: }
2231:
2232: static enum rofferr
2233: roff_unsupp(ROFF_ARGS)
2234: {
2235:
2236: mandoc_msg(MANDOCERR_REQ_UNSUPP, r->parse,
1.295 schwarze 2237: ln, ppos, roff_name[tok]);
1.277 schwarze 2238: return ROFF_IGN;
1.251 schwarze 2239: }
2240:
2241: static enum rofferr
1.82 kristaps 2242: roff_cond(ROFF_ARGS)
1.74 kristaps 2243: {
1.173 schwarze 2244:
2245: roffnode_push(r, tok, NULL, ln, ppos);
1.74 kristaps 2246:
1.207 schwarze 2247: /*
1.134 kristaps 2248: * An `.el' has no conditional body: it will consume the value
2249: * of the current rstack entry set in prior `ie' calls or
1.207 schwarze 2250: * defaults to DENY.
1.134 kristaps 2251: *
2252: * If we're not an `el', however, then evaluate the conditional.
2253: */
1.133 kristaps 2254:
1.238 schwarze 2255: r->last->rule = tok == ROFF_el ?
1.207 schwarze 2256: (r->rstackpos < 0 ? 0 : r->rstack[r->rstackpos--]) :
1.238 schwarze 2257: roff_evalcond(r, ln, buf->buf, &pos);
1.77 kristaps 2258:
1.134 kristaps 2259: /*
2260: * An if-else will put the NEGATION of the current evaluated
2261: * conditional into the stack of rules.
2262: */
2263:
1.238 schwarze 2264: if (tok == ROFF_ie) {
1.223 schwarze 2265: if (r->rstackpos + 1 == r->rstacksz) {
2266: r->rstacksz += 16;
2267: r->rstack = mandoc_reallocarray(r->rstack,
2268: r->rstacksz, sizeof(int));
1.134 kristaps 2269: }
1.198 schwarze 2270: r->rstack[++r->rstackpos] = !r->last->rule;
1.82 kristaps 2271: }
1.88 kristaps 2272:
2273: /* If the parent has false as its rule, then so do we. */
2274:
1.198 schwarze 2275: if (r->last->parent && !r->last->parent->rule)
2276: r->last->rule = 0;
1.88 kristaps 2277:
2278: /*
1.173 schwarze 2279: * Determine scope.
2280: * If there is nothing on the line after the conditional,
2281: * not even whitespace, use next-line scope.
1.88 kristaps 2282: */
1.74 kristaps 2283:
1.238 schwarze 2284: if (buf->buf[pos] == '\0') {
1.173 schwarze 2285: r->last->endspan = 2;
2286: goto out;
2287: }
2288:
1.238 schwarze 2289: while (buf->buf[pos] == ' ')
1.173 schwarze 2290: pos++;
2291:
2292: /* An opening brace requests multiline scope. */
1.75 kristaps 2293:
1.238 schwarze 2294: if (buf->buf[pos] == '\\' && buf->buf[pos + 1] == '{') {
1.75 kristaps 2295: r->last->endspan = -1;
2296: pos += 2;
1.272 schwarze 2297: while (buf->buf[pos] == ' ')
2298: pos++;
1.173 schwarze 2299: goto out;
1.207 schwarze 2300: }
1.74 kristaps 2301:
1.77 kristaps 2302: /*
1.173 schwarze 2303: * Anything else following the conditional causes
2304: * single-line scope. Warn if the scope contains
2305: * nothing but trailing whitespace.
1.77 kristaps 2306: */
2307:
1.238 schwarze 2308: if (buf->buf[pos] == '\0')
1.216 schwarze 2309: mandoc_msg(MANDOCERR_COND_EMPTY, r->parse,
1.295 schwarze 2310: ln, ppos, roff_name[tok]);
1.77 kristaps 2311:
1.173 schwarze 2312: r->last->endspan = 1;
1.74 kristaps 2313:
1.173 schwarze 2314: out:
1.75 kristaps 2315: *offs = pos;
1.277 schwarze 2316: return ROFF_RERUN;
1.83 schwarze 2317: }
2318:
2319: static enum rofferr
1.92 schwarze 2320: roff_ds(ROFF_ARGS)
2321: {
1.212 schwarze 2322: char *string;
2323: const char *name;
2324: size_t namesz;
1.96 kristaps 2325:
1.251 schwarze 2326: /* Ignore groff compatibility mode for now. */
2327:
2328: if (tok == ROFF_ds1)
2329: tok = ROFF_ds;
2330: else if (tok == ROFF_as1)
2331: tok = ROFF_as;
2332:
1.96 kristaps 2333: /*
1.212 schwarze 2334: * The first word is the name of the string.
2335: * If it is empty or terminated by an escape sequence,
2336: * abort the `ds' request without defining anything.
1.96 kristaps 2337: */
1.92 schwarze 2338:
1.238 schwarze 2339: name = string = buf->buf + pos;
2340: if (*name == '\0')
1.277 schwarze 2341: return ROFF_IGN;
1.92 schwarze 2342:
1.212 schwarze 2343: namesz = roff_getname(r, &string, ln, pos);
1.238 schwarze 2344: if (name[namesz] == '\\')
1.277 schwarze 2345: return ROFF_IGN;
1.212 schwarze 2346:
2347: /* Read past the initial double-quote, if any. */
1.238 schwarze 2348: if (*string == '"')
1.92 schwarze 2349: string++;
2350:
1.96 kristaps 2351: /* The rest is the value. */
1.212 schwarze 2352: roff_setstrn(&r->strtab, name, namesz, string, strlen(string),
2353: ROFF_as == tok);
1.311 schwarze 2354: roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
1.277 schwarze 2355: return ROFF_IGN;
1.92 schwarze 2356: }
2357:
1.204 schwarze 2358: /*
2359: * Parse a single operator, one or two characters long.
2360: * If the operator is recognized, return success and advance the
2361: * parse point, else return failure and let the parse point unchanged.
2362: */
2363: static int
2364: roff_getop(const char *v, int *pos, char *res)
2365: {
2366:
2367: *res = v[*pos];
2368:
2369: switch (*res) {
1.207 schwarze 2370: case '+':
2371: case '-':
2372: case '*':
2373: case '/':
2374: case '%':
2375: case '&':
2376: case ':':
1.204 schwarze 2377: break;
2378: case '<':
2379: switch (v[*pos + 1]) {
1.207 schwarze 2380: case '=':
1.204 schwarze 2381: *res = 'l';
2382: (*pos)++;
2383: break;
1.207 schwarze 2384: case '>':
1.204 schwarze 2385: *res = '!';
2386: (*pos)++;
2387: break;
1.207 schwarze 2388: case '?':
1.204 schwarze 2389: *res = 'i';
2390: (*pos)++;
2391: break;
2392: default:
2393: break;
2394: }
2395: break;
2396: case '>':
2397: switch (v[*pos + 1]) {
1.207 schwarze 2398: case '=':
1.204 schwarze 2399: *res = 'g';
2400: (*pos)++;
2401: break;
1.207 schwarze 2402: case '?':
1.204 schwarze 2403: *res = 'a';
2404: (*pos)++;
2405: break;
2406: default:
2407: break;
2408: }
2409: break;
2410: case '=':
2411: if ('=' == v[*pos + 1])
2412: (*pos)++;
2413: break;
2414: default:
1.277 schwarze 2415: return 0;
1.204 schwarze 2416: }
2417: (*pos)++;
2418:
1.277 schwarze 2419: return *res;
1.204 schwarze 2420: }
2421:
2422: /*
2423: * Evaluate either a parenthesized numeric expression
2424: * or a single signed integer number.
2425: */
2426: static int
1.235 schwarze 2427: roff_evalpar(struct roff *r, int ln,
1.261 schwarze 2428: const char *v, int *pos, int *res, int flags)
1.204 schwarze 2429: {
2430:
2431: if ('(' != v[*pos])
1.277 schwarze 2432: return roff_getnum(v, pos, res, flags);
1.204 schwarze 2433:
2434: (*pos)++;
1.261 schwarze 2435: if ( ! roff_evalnum(r, ln, v, pos, res, flags | ROFFNUM_WHITE))
1.277 schwarze 2436: return 0;
1.204 schwarze 2437:
1.206 schwarze 2438: /*
2439: * Omission of the closing parenthesis
2440: * is an error in validation mode,
2441: * but ignored in evaluation mode.
2442: */
2443:
1.204 schwarze 2444: if (')' == v[*pos])
2445: (*pos)++;
1.206 schwarze 2446: else if (NULL == res)
1.277 schwarze 2447: return 0;
1.204 schwarze 2448:
1.277 schwarze 2449: return 1;
1.204 schwarze 2450: }
2451:
2452: /*
2453: * Evaluate a complete numeric expression.
2454: * Proceed left to right, there is no concept of precedence.
2455: */
2456: static int
1.235 schwarze 2457: roff_evalnum(struct roff *r, int ln, const char *v,
1.261 schwarze 2458: int *pos, int *res, int flags)
1.204 schwarze 2459: {
2460: int mypos, operand2;
2461: char operator;
2462:
2463: if (NULL == pos) {
2464: mypos = 0;
2465: pos = &mypos;
2466: }
2467:
1.261 schwarze 2468: if (flags & ROFFNUM_WHITE)
1.204 schwarze 2469: while (isspace((unsigned char)v[*pos]))
2470: (*pos)++;
2471:
1.261 schwarze 2472: if ( ! roff_evalpar(r, ln, v, pos, res, flags))
1.277 schwarze 2473: return 0;
1.204 schwarze 2474:
2475: while (1) {
1.261 schwarze 2476: if (flags & ROFFNUM_WHITE)
1.204 schwarze 2477: while (isspace((unsigned char)v[*pos]))
2478: (*pos)++;
2479:
2480: if ( ! roff_getop(v, pos, &operator))
2481: break;
2482:
1.261 schwarze 2483: if (flags & ROFFNUM_WHITE)
1.204 schwarze 2484: while (isspace((unsigned char)v[*pos]))
2485: (*pos)++;
2486:
1.261 schwarze 2487: if ( ! roff_evalpar(r, ln, v, pos, &operand2, flags))
1.277 schwarze 2488: return 0;
1.204 schwarze 2489:
1.261 schwarze 2490: if (flags & ROFFNUM_WHITE)
1.204 schwarze 2491: while (isspace((unsigned char)v[*pos]))
2492: (*pos)++;
1.206 schwarze 2493:
2494: if (NULL == res)
2495: continue;
1.204 schwarze 2496:
2497: switch (operator) {
1.207 schwarze 2498: case '+':
1.204 schwarze 2499: *res += operand2;
2500: break;
1.207 schwarze 2501: case '-':
1.204 schwarze 2502: *res -= operand2;
2503: break;
1.207 schwarze 2504: case '*':
1.204 schwarze 2505: *res *= operand2;
2506: break;
1.207 schwarze 2507: case '/':
1.244 schwarze 2508: if (operand2 == 0) {
1.235 schwarze 2509: mandoc_msg(MANDOCERR_DIVZERO,
1.234 kristaps 2510: r->parse, ln, *pos, v);
2511: *res = 0;
2512: break;
2513: }
1.204 schwarze 2514: *res /= operand2;
2515: break;
1.207 schwarze 2516: case '%':
1.244 schwarze 2517: if (operand2 == 0) {
2518: mandoc_msg(MANDOCERR_DIVZERO,
2519: r->parse, ln, *pos, v);
2520: *res = 0;
2521: break;
2522: }
1.204 schwarze 2523: *res %= operand2;
2524: break;
1.207 schwarze 2525: case '<':
1.204 schwarze 2526: *res = *res < operand2;
2527: break;
1.207 schwarze 2528: case '>':
1.204 schwarze 2529: *res = *res > operand2;
2530: break;
1.207 schwarze 2531: case 'l':
1.204 schwarze 2532: *res = *res <= operand2;
2533: break;
1.207 schwarze 2534: case 'g':
1.204 schwarze 2535: *res = *res >= operand2;
2536: break;
1.207 schwarze 2537: case '=':
1.204 schwarze 2538: *res = *res == operand2;
2539: break;
1.207 schwarze 2540: case '!':
1.204 schwarze 2541: *res = *res != operand2;
2542: break;
1.207 schwarze 2543: case '&':
1.204 schwarze 2544: *res = *res && operand2;
2545: break;
1.207 schwarze 2546: case ':':
1.204 schwarze 2547: *res = *res || operand2;
2548: break;
1.207 schwarze 2549: case 'i':
1.204 schwarze 2550: if (operand2 < *res)
2551: *res = operand2;
2552: break;
1.207 schwarze 2553: case 'a':
1.204 schwarze 2554: if (operand2 > *res)
2555: *res = operand2;
2556: break;
2557: default:
2558: abort();
2559: }
2560: }
1.277 schwarze 2561: return 1;
1.204 schwarze 2562: }
2563:
1.266 schwarze 2564: /* --- register management ------------------------------------------------ */
2565:
1.180 schwarze 2566: void
1.187 schwarze 2567: roff_setreg(struct roff *r, const char *name, int val, char sign)
1.147 kristaps 2568: {
1.327 schwarze 2569: roff_setregn(r, name, strlen(name), val, sign, INT_MIN);
1.326 schwarze 2570: }
2571:
2572: static void
2573: roff_setregn(struct roff *r, const char *name, size_t len,
1.327 schwarze 2574: int val, char sign, int step)
1.326 schwarze 2575: {
1.180 schwarze 2576: struct roffreg *reg;
2577:
2578: /* Search for an existing register with the same name. */
2579: reg = r->regtab;
2580:
1.326 schwarze 2581: while (reg != NULL && (reg->key.sz != len ||
2582: strncmp(reg->key.p, name, len) != 0))
1.180 schwarze 2583: reg = reg->next;
1.147 kristaps 2584:
1.180 schwarze 2585: if (NULL == reg) {
2586: /* Create a new register. */
2587: reg = mandoc_malloc(sizeof(struct roffreg));
1.326 schwarze 2588: reg->key.p = mandoc_strndup(name, len);
2589: reg->key.sz = len;
1.187 schwarze 2590: reg->val = 0;
1.327 schwarze 2591: reg->step = 0;
1.180 schwarze 2592: reg->next = r->regtab;
2593: r->regtab = reg;
2594: }
2595:
1.187 schwarze 2596: if ('+' == sign)
2597: reg->val += val;
2598: else if ('-' == sign)
2599: reg->val -= val;
2600: else
2601: reg->val = val;
1.327 schwarze 2602: if (step != INT_MIN)
2603: reg->step = step;
1.147 kristaps 2604: }
2605:
1.192 schwarze 2606: /*
2607: * Handle some predefined read-only number registers.
2608: * For now, return -1 if the requested register is not predefined;
2609: * in case a predefined read-only register having the value -1
2610: * were to turn up, another special value would have to be chosen.
2611: */
2612: static int
1.273 schwarze 2613: roff_getregro(const struct roff *r, const char *name)
1.192 schwarze 2614: {
2615:
2616: switch (*name) {
1.273 schwarze 2617: case '$': /* Number of arguments of the last macro evaluated. */
1.277 schwarze 2618: return r->argc;
1.207 schwarze 2619: case 'A': /* ASCII approximation mode is always off. */
1.277 schwarze 2620: return 0;
1.207 schwarze 2621: case 'g': /* Groff compatibility mode is always on. */
1.277 schwarze 2622: return 1;
1.207 schwarze 2623: case 'H': /* Fixed horizontal resolution. */
1.277 schwarze 2624: return 24;
1.207 schwarze 2625: case 'j': /* Always adjust left margin only. */
1.277 schwarze 2626: return 0;
1.207 schwarze 2627: case 'T': /* Some output device is always defined. */
1.277 schwarze 2628: return 1;
1.207 schwarze 2629: case 'V': /* Fixed vertical resolution. */
1.277 schwarze 2630: return 40;
1.192 schwarze 2631: default:
1.277 schwarze 2632: return -1;
1.192 schwarze 2633: }
2634: }
2635:
1.181 schwarze 2636: int
1.326 schwarze 2637: roff_getreg(struct roff *r, const char *name)
1.147 kristaps 2638: {
1.327 schwarze 2639: return roff_getregn(r, name, strlen(name), '\0');
1.181 schwarze 2640: }
2641:
2642: static int
1.327 schwarze 2643: roff_getregn(struct roff *r, const char *name, size_t len, char sign)
1.181 schwarze 2644: {
2645: struct roffreg *reg;
1.192 schwarze 2646: int val;
2647:
2648: if ('.' == name[0] && 2 == len) {
1.273 schwarze 2649: val = roff_getregro(r, name + 1);
1.192 schwarze 2650: if (-1 != val)
1.277 schwarze 2651: return val;
1.192 schwarze 2652: }
1.181 schwarze 2653:
1.327 schwarze 2654: for (reg = r->regtab; reg; reg = reg->next) {
1.181 schwarze 2655: if (len == reg->key.sz &&
1.327 schwarze 2656: 0 == strncmp(name, reg->key.p, len)) {
2657: switch (sign) {
2658: case '+':
2659: reg->val += reg->step;
2660: break;
2661: case '-':
2662: reg->val -= reg->step;
2663: break;
2664: default:
2665: break;
2666: }
1.277 schwarze 2667: return reg->val;
1.327 schwarze 2668: }
2669: }
1.271 schwarze 2670:
1.327 schwarze 2671: roff_setregn(r, name, len, 0, '\0', INT_MIN);
1.277 schwarze 2672: return 0;
1.271 schwarze 2673: }
2674:
2675: static int
2676: roff_hasregn(const struct roff *r, const char *name, size_t len)
2677: {
2678: struct roffreg *reg;
2679: int val;
2680:
2681: if ('.' == name[0] && 2 == len) {
1.273 schwarze 2682: val = roff_getregro(r, name + 1);
1.271 schwarze 2683: if (-1 != val)
1.277 schwarze 2684: return 1;
1.271 schwarze 2685: }
2686:
2687: for (reg = r->regtab; reg; reg = reg->next)
2688: if (len == reg->key.sz &&
2689: 0 == strncmp(name, reg->key.p, len))
1.277 schwarze 2690: return 1;
1.147 kristaps 2691:
1.277 schwarze 2692: return 0;
1.147 kristaps 2693: }
2694:
1.180 schwarze 2695: static void
2696: roff_freereg(struct roffreg *reg)
1.147 kristaps 2697: {
1.180 schwarze 2698: struct roffreg *old_reg;
1.147 kristaps 2699:
1.180 schwarze 2700: while (NULL != reg) {
2701: free(reg->key.p);
2702: old_reg = reg;
2703: reg = reg->next;
2704: free(old_reg);
2705: }
1.147 kristaps 2706: }
1.92 schwarze 2707:
2708: static enum rofferr
1.89 kristaps 2709: roff_nr(ROFF_ARGS)
1.83 schwarze 2710: {
1.327 schwarze 2711: char *key, *val, *step;
1.212 schwarze 2712: size_t keysz;
1.327 schwarze 2713: int iv, is, len;
1.187 schwarze 2714: char sign;
1.89 kristaps 2715:
1.238 schwarze 2716: key = val = buf->buf + pos;
2717: if (*key == '\0')
1.277 schwarze 2718: return ROFF_IGN;
1.212 schwarze 2719:
2720: keysz = roff_getname(r, &val, ln, pos);
1.238 schwarze 2721: if (key[keysz] == '\\')
1.277 schwarze 2722: return ROFF_IGN;
1.89 kristaps 2723:
1.187 schwarze 2724: sign = *val;
1.238 schwarze 2725: if (sign == '+' || sign == '-')
1.187 schwarze 2726: val++;
2727:
1.327 schwarze 2728: len = 0;
2729: if (roff_evalnum(r, ln, val, &len, &iv, ROFFNUM_SCALE) == 0)
2730: return ROFF_IGN;
2731:
2732: step = val + len;
2733: while (isspace((unsigned char)*step))
2734: step++;
2735: if (roff_evalnum(r, ln, step, NULL, &is, 0) == 0)
2736: is = INT_MIN;
1.109 kristaps 2737:
1.327 schwarze 2738: roff_setregn(r, key, keysz, iv, sign, is);
1.277 schwarze 2739: return ROFF_IGN;
1.203 schwarze 2740: }
2741:
2742: static enum rofferr
2743: roff_rr(ROFF_ARGS)
2744: {
2745: struct roffreg *reg, **prev;
1.212 schwarze 2746: char *name, *cp;
2747: size_t namesz;
1.203 schwarze 2748:
1.238 schwarze 2749: name = cp = buf->buf + pos;
2750: if (*name == '\0')
1.277 schwarze 2751: return ROFF_IGN;
1.212 schwarze 2752: namesz = roff_getname(r, &cp, ln, pos);
2753: name[namesz] = '\0';
1.203 schwarze 2754:
2755: prev = &r->regtab;
2756: while (1) {
2757: reg = *prev;
1.238 schwarze 2758: if (reg == NULL || !strcmp(name, reg->key.p))
1.203 schwarze 2759: break;
2760: prev = ®->next;
2761: }
1.238 schwarze 2762: if (reg != NULL) {
1.203 schwarze 2763: *prev = reg->next;
2764: free(reg->key.p);
2765: free(reg);
2766: }
1.277 schwarze 2767: return ROFF_IGN;
1.122 schwarze 2768: }
2769:
1.266 schwarze 2770: /* --- handler functions for roff requests -------------------------------- */
2771:
1.122 schwarze 2772: static enum rofferr
2773: roff_rm(ROFF_ARGS)
2774: {
2775: const char *name;
2776: char *cp;
1.212 schwarze 2777: size_t namesz;
1.122 schwarze 2778:
1.238 schwarze 2779: cp = buf->buf + pos;
2780: while (*cp != '\0') {
1.212 schwarze 2781: name = cp;
1.238 schwarze 2782: namesz = roff_getname(r, &cp, ln, (int)(cp - buf->buf));
1.212 schwarze 2783: roff_setstrn(&r->strtab, name, namesz, NULL, 0, 0);
1.311 schwarze 2784: roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
1.238 schwarze 2785: if (name[namesz] == '\\')
1.212 schwarze 2786: break;
1.122 schwarze 2787: }
1.277 schwarze 2788: return ROFF_IGN;
1.178 schwarze 2789: }
2790:
2791: static enum rofferr
2792: roff_it(ROFF_ARGS)
2793: {
2794: int iv;
2795:
2796: /* Parse the number of lines. */
1.261 schwarze 2797:
2798: if ( ! roff_evalnum(r, ln, buf->buf, &pos, &iv, 0)) {
1.222 schwarze 2799: mandoc_msg(MANDOCERR_IT_NONUM, r->parse,
1.238 schwarze 2800: ln, ppos, buf->buf + 1);
1.277 schwarze 2801: return ROFF_IGN;
1.178 schwarze 2802: }
2803:
1.262 schwarze 2804: while (isspace((unsigned char)buf->buf[pos]))
2805: pos++;
2806:
2807: /*
2808: * Arm the input line trap.
2809: * Special-casing "an-trap" is an ugly workaround to cope
2810: * with DocBook stupidly fiddling with man(7) internals.
2811: */
1.261 schwarze 2812:
1.178 schwarze 2813: roffit_lines = iv;
1.262 schwarze 2814: roffit_macro = mandoc_strdup(iv != 1 ||
2815: strcmp(buf->buf + pos, "an-trap") ?
2816: buf->buf + pos : "br");
1.277 schwarze 2817: return ROFF_IGN;
1.175 schwarze 2818: }
2819:
2820: static enum rofferr
2821: roff_Dd(ROFF_ARGS)
2822: {
1.315 schwarze 2823: int mask;
2824: enum roff_tok t, te;
1.227 schwarze 2825:
1.315 schwarze 2826: switch (tok) {
2827: case ROFF_Dd:
2828: tok = MDOC_Dd;
2829: te = MDOC_MAX;
2830: if (r->format == 0)
2831: r->format = MPARSE_MDOC;
2832: mask = MPARSE_MDOC | MPARSE_QUICK;
2833: break;
2834: case ROFF_TH:
2835: tok = MAN_TH;
2836: te = MAN_MAX;
2837: if (r->format == 0)
2838: r->format = MPARSE_MAN;
2839: mask = MPARSE_QUICK;
2840: break;
2841: default:
2842: abort();
2843: }
2844: if ((r->options & mask) == 0)
2845: for (t = tok; t < te; t++)
2846: roff_setstr(r, roff_name[t], NULL, 0);
1.277 schwarze 2847: return ROFF_CONT;
1.109 kristaps 2848: }
2849:
2850: static enum rofferr
2851: roff_TE(ROFF_ARGS)
2852: {
1.321 schwarze 2853: if (r->tbl == NULL) {
1.221 schwarze 2854: mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
2855: ln, ppos, "TE");
1.321 schwarze 2856: return ROFF_IGN;
2857: }
2858: if (tbl_end(r->tbl) == 0) {
2859: r->tbl = NULL;
1.258 schwarze 2860: free(buf->buf);
2861: buf->buf = mandoc_strdup(".sp");
2862: buf->sz = 4;
1.329 schwarze 2863: *offs = 0;
1.277 schwarze 2864: return ROFF_REPARSE;
1.258 schwarze 2865: }
1.321 schwarze 2866: r->tbl = NULL;
1.277 schwarze 2867: return ROFF_IGN;
1.112 kristaps 2868: }
2869:
2870: static enum rofferr
2871: roff_T_(ROFF_ARGS)
2872: {
2873:
2874: if (NULL == r->tbl)
1.221 schwarze 2875: mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
2876: ln, ppos, "T&");
1.112 kristaps 2877: else
1.296 schwarze 2878: tbl_restart(ln, ppos, r->tbl);
1.112 kristaps 2879:
1.277 schwarze 2880: return ROFF_IGN;
1.109 kristaps 2881: }
2882:
1.230 schwarze 2883: /*
2884: * Handle in-line equation delimiters.
2885: */
2886: static enum rofferr
1.238 schwarze 2887: roff_eqndelim(struct roff *r, struct buf *buf, int pos)
1.151 kristaps 2888: {
1.233 schwarze 2889: char *cp1, *cp2;
2890: const char *bef_pr, *bef_nl, *mac, *aft_nl, *aft_pr;
1.151 kristaps 2891:
1.230 schwarze 2892: /*
2893: * Outside equations, look for an opening delimiter.
2894: * If we are inside an equation, we already know it is
2895: * in-line, or this function wouldn't have been called;
2896: * so look for a closing delimiter.
2897: */
2898:
1.238 schwarze 2899: cp1 = buf->buf + pos;
1.230 schwarze 2900: cp2 = strchr(cp1, r->eqn == NULL ?
2901: r->last_eqn->odelim : r->last_eqn->cdelim);
2902: if (cp2 == NULL)
1.277 schwarze 2903: return ROFF_CONT;
1.230 schwarze 2904:
1.233 schwarze 2905: *cp2++ = '\0';
2906: bef_pr = bef_nl = aft_nl = aft_pr = "";
2907:
2908: /* Handle preceding text, protecting whitespace. */
2909:
1.238 schwarze 2910: if (*buf->buf != '\0') {
1.233 schwarze 2911: if (r->eqn == NULL)
2912: bef_pr = "\\&";
2913: bef_nl = "\n";
2914: }
2915:
2916: /*
2917: * Prepare replacing the delimiter with an equation macro
2918: * and drop leading white space from the equation.
2919: */
1.230 schwarze 2920:
1.233 schwarze 2921: if (r->eqn == NULL) {
2922: while (*cp2 == ' ')
2923: cp2++;
2924: mac = ".EQ";
2925: } else
2926: mac = ".EN";
2927:
2928: /* Handle following text, protecting whitespace. */
2929:
2930: if (*cp2 != '\0') {
2931: aft_nl = "\n";
2932: if (r->eqn != NULL)
2933: aft_pr = "\\&";
2934: }
2935:
2936: /* Do the actual replacement. */
2937:
1.238 schwarze 2938: buf->sz = mandoc_asprintf(&cp1, "%s%s%s%s%s%s%s", buf->buf,
1.233 schwarze 2939: bef_pr, bef_nl, mac, aft_nl, aft_pr, cp2) + 1;
1.238 schwarze 2940: free(buf->buf);
2941: buf->buf = cp1;
1.230 schwarze 2942:
2943: /* Toggle the in-line state of the eqn subsystem. */
2944:
2945: r->eqn_inline = r->eqn == NULL;
1.277 schwarze 2946: return ROFF_REPARSE;
1.151 kristaps 2947: }
2948:
1.235 schwarze 2949: static enum rofferr
2950: roff_EQ(ROFF_ARGS)
1.125 kristaps 2951: {
1.319 schwarze 2952: struct roff_node *n;
2953:
1.322 schwarze 2954: if (r->man->macroset == MACROSET_MAN)
2955: man_breakscope(r->man, ROFF_EQ);
1.319 schwarze 2956: n = roff_node_alloc(r->man, ln, ppos, ROFFT_EQN, TOKEN_NONE);
2957: if (ln > r->man->last->line)
2958: n->flags |= NODE_LINE;
2959: n->eqn = mandoc_calloc(1, sizeof(*n->eqn));
2960: n->eqn->expectargs = UINT_MAX;
2961: roff_node_append(r->man, n);
2962: r->man->next = ROFF_NEXT_SIBLING;
1.125 kristaps 2963:
1.238 schwarze 2964: assert(r->eqn == NULL);
1.319 schwarze 2965: if (r->last_eqn == NULL)
2966: r->last_eqn = eqn_alloc(r->parse);
2967: else
2968: eqn_reset(r->last_eqn);
2969: r->eqn = r->last_eqn;
2970: r->eqn->node = n;
1.151 kristaps 2971:
1.238 schwarze 2972: if (buf->buf[pos] != '\0')
1.235 schwarze 2973: mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
1.238 schwarze 2974: ".EQ %s", buf->buf + pos);
1.151 kristaps 2975:
1.277 schwarze 2976: return ROFF_IGN;
1.125 kristaps 2977: }
2978:
2979: static enum rofferr
2980: roff_EN(ROFF_ARGS)
2981: {
1.319 schwarze 2982: if (r->eqn != NULL) {
2983: eqn_parse(r->eqn);
2984: r->eqn = NULL;
2985: } else
2986: mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, ln, ppos, "EN");
2987: if (buf->buf[pos] != '\0')
2988: mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
2989: "EN %s", buf->buf + pos);
1.277 schwarze 2990: return ROFF_IGN;
1.125 kristaps 2991: }
2992:
2993: static enum rofferr
1.109 kristaps 2994: roff_TS(ROFF_ARGS)
2995: {
1.321 schwarze 2996: if (r->tbl != NULL) {
1.221 schwarze 2997: mandoc_msg(MANDOCERR_BLK_BROKEN, r->parse,
2998: ln, ppos, "TS breaks TS");
1.321 schwarze 2999: tbl_end(r->tbl);
1.115 kristaps 3000: }
1.321 schwarze 3001: r->tbl = tbl_alloc(ppos, ln, r->parse);
1.113 kristaps 3002: if (r->last_tbl)
1.321 schwarze 3003: r->last_tbl->next = r->tbl;
1.113 kristaps 3004: else
1.321 schwarze 3005: r->first_tbl = r->tbl;
3006: r->last_tbl = r->tbl;
1.297 schwarze 3007: return ROFF_IGN;
3008: }
3009:
3010: static enum rofferr
3011: roff_onearg(ROFF_ARGS)
3012: {
3013: struct roff_node *n;
3014: char *cp;
1.305 schwarze 3015: int npos;
1.297 schwarze 3016:
1.302 schwarze 3017: if (r->man->flags & (MAN_BLINE | MAN_ELINE) &&
1.320 schwarze 3018: (tok == ROFF_ce || tok == ROFF_rj || tok == ROFF_sp ||
3019: tok == ROFF_ti))
1.302 schwarze 3020: man_breakscope(r->man, tok);
3021:
1.309 schwarze 3022: if (roffce_node != NULL && (tok == ROFF_ce || tok == ROFF_rj)) {
1.305 schwarze 3023: r->man->last = roffce_node;
3024: r->man->next = ROFF_NEXT_SIBLING;
3025: }
3026:
1.297 schwarze 3027: roff_elem_alloc(r->man, ln, ppos, tok);
3028: n = r->man->last;
3029:
3030: cp = buf->buf + pos;
3031: if (*cp != '\0') {
3032: while (*cp != '\0' && *cp != ' ')
3033: cp++;
3034: while (*cp == ' ')
3035: *cp++ = '\0';
3036: if (*cp != '\0')
3037: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
3038: r->parse, ln, cp - buf->buf,
3039: "%s ... %s", roff_name[tok], cp);
3040: roff_word_alloc(r->man, ln, pos, buf->buf + pos);
1.300 schwarze 3041: }
3042:
1.309 schwarze 3043: if (tok == ROFF_ce || tok == ROFF_rj) {
3044: if (r->man->last->type == ROFFT_ELEM) {
1.305 schwarze 3045: roff_word_alloc(r->man, ln, pos, "1");
3046: r->man->last->flags |= NODE_NOSRC;
3047: }
3048: npos = 0;
3049: if (roff_evalnum(r, ln, r->man->last->string, &npos,
3050: &roffce_lines, 0) == 0) {
3051: mandoc_vmsg(MANDOCERR_CE_NONUM,
3052: r->parse, ln, pos, "ce %s", buf->buf + pos);
3053: roffce_lines = 1;
3054: }
3055: if (roffce_lines < 1) {
3056: r->man->last = r->man->last->parent;
3057: roffce_node = NULL;
3058: roffce_lines = 0;
3059: } else
3060: roffce_node = r->man->last->parent;
3061: } else {
3062: n->flags |= NODE_VALID | NODE_ENDED;
3063: r->man->last = n;
3064: }
3065: n->flags |= NODE_LINE;
1.300 schwarze 3066: r->man->next = ROFF_NEXT_SIBLING;
3067: return ROFF_IGN;
3068: }
3069:
3070: static enum rofferr
3071: roff_manyarg(ROFF_ARGS)
3072: {
3073: struct roff_node *n;
3074: char *sp, *ep;
3075:
3076: roff_elem_alloc(r->man, ln, ppos, tok);
3077: n = r->man->last;
3078:
3079: for (sp = ep = buf->buf + pos; *sp != '\0'; sp = ep) {
3080: while (*ep != '\0' && *ep != ' ')
3081: ep++;
3082: while (*ep == ' ')
3083: *ep++ = '\0';
3084: roff_word_alloc(r->man, ln, sp - buf->buf, sp);
1.297 schwarze 3085: }
3086:
3087: n->flags |= NODE_LINE | NODE_VALID | NODE_ENDED;
3088: r->man->last = n;
3089: r->man->next = ROFF_NEXT_SIBLING;
1.277 schwarze 3090: return ROFF_IGN;
1.251 schwarze 3091: }
3092:
3093: static enum rofferr
1.311 schwarze 3094: roff_als(ROFF_ARGS)
3095: {
3096: char *oldn, *newn, *end, *value;
3097: size_t oldsz, newsz, valsz;
3098:
3099: newn = oldn = buf->buf + pos;
3100: if (*newn == '\0')
3101: return ROFF_IGN;
3102:
3103: newsz = roff_getname(r, &oldn, ln, pos);
3104: if (newn[newsz] == '\\' || *oldn == '\0')
3105: return ROFF_IGN;
3106:
3107: end = oldn;
3108: oldsz = roff_getname(r, &end, ln, oldn - buf->buf);
3109: if (oldsz == 0)
3110: return ROFF_IGN;
3111:
1.315 schwarze 3112: valsz = mandoc_asprintf(&value, ".%.*s \\$*\\\"\n",
3113: (int)oldsz, oldn);
1.311 schwarze 3114: roff_setstrn(&r->strtab, newn, newsz, value, valsz, 0);
3115: roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
3116: free(value);
3117: return ROFF_IGN;
3118: }
3119:
3120: static enum rofferr
1.296 schwarze 3121: roff_br(ROFF_ARGS)
1.251 schwarze 3122: {
1.302 schwarze 3123: if (r->man->flags & (MAN_BLINE | MAN_ELINE))
3124: man_breakscope(r->man, ROFF_br);
1.296 schwarze 3125: roff_elem_alloc(r->man, ln, ppos, ROFF_br);
3126: if (buf->buf[pos] != '\0')
3127: mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
3128: "%s %s", roff_name[tok], buf->buf + pos);
3129: r->man->last->flags |= NODE_LINE | NODE_VALID | NODE_ENDED;
3130: r->man->next = ROFF_NEXT_SIBLING;
3131: return ROFF_IGN;
1.92 schwarze 3132: }
3133:
1.105 kristaps 3134: static enum rofferr
1.174 kristaps 3135: roff_cc(ROFF_ARGS)
3136: {
3137: const char *p;
3138:
1.238 schwarze 3139: p = buf->buf + pos;
1.174 kristaps 3140:
1.238 schwarze 3141: if (*p == '\0' || (r->control = *p++) == '.')
1.303 schwarze 3142: r->control = '\0';
1.174 kristaps 3143:
1.238 schwarze 3144: if (*p != '\0')
1.260 schwarze 3145: mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse,
3146: ln, p - buf->buf, "cc ... %s", p);
1.174 kristaps 3147:
1.277 schwarze 3148: return ROFF_IGN;
1.174 kristaps 3149: }
3150:
3151: static enum rofferr
1.303 schwarze 3152: roff_ec(ROFF_ARGS)
3153: {
3154: const char *p;
3155:
3156: p = buf->buf + pos;
3157: if (*p == '\0')
3158: r->escape = '\\';
3159: else {
3160: r->escape = *p;
3161: if (*++p != '\0')
3162: mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse,
3163: ln, p - buf->buf, "ec ... %s", p);
3164: }
3165: return ROFF_IGN;
3166: }
3167:
3168: static enum rofferr
3169: roff_eo(ROFF_ARGS)
3170: {
3171: r->escape = '\0';
3172: if (buf->buf[pos] != '\0')
3173: mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse,
3174: ln, pos, "eo %s", buf->buf + pos);
3175: return ROFF_IGN;
1.330 schwarze 3176: }
3177:
3178: static enum rofferr
3179: roff_nop(ROFF_ARGS)
3180: {
3181: while (buf->buf[pos] == ' ')
3182: pos++;
3183: *offs = pos;
3184: return ROFF_RERUN;
1.303 schwarze 3185: }
3186:
3187: static enum rofferr
1.164 kristaps 3188: roff_tr(ROFF_ARGS)
3189: {
3190: const char *p, *first, *second;
3191: size_t fsz, ssz;
3192: enum mandoc_esc esc;
3193:
1.238 schwarze 3194: p = buf->buf + pos;
1.164 kristaps 3195:
1.238 schwarze 3196: if (*p == '\0') {
1.260 schwarze 3197: mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse, ln, ppos, "tr");
1.277 schwarze 3198: return ROFF_IGN;
1.164 kristaps 3199: }
3200:
1.238 schwarze 3201: while (*p != '\0') {
1.164 kristaps 3202: fsz = ssz = 1;
3203:
3204: first = p++;
1.238 schwarze 3205: if (*first == '\\') {
1.164 kristaps 3206: esc = mandoc_escape(&p, NULL, NULL);
1.238 schwarze 3207: if (esc == ESCAPE_ERROR) {
1.219 schwarze 3208: mandoc_msg(MANDOCERR_ESC_BAD, r->parse,
1.238 schwarze 3209: ln, (int)(p - buf->buf), first);
1.277 schwarze 3210: return ROFF_IGN;
1.164 kristaps 3211: }
3212: fsz = (size_t)(p - first);
3213: }
3214:
3215: second = p++;
1.238 schwarze 3216: if (*second == '\\') {
1.164 kristaps 3217: esc = mandoc_escape(&p, NULL, NULL);
1.238 schwarze 3218: if (esc == ESCAPE_ERROR) {
1.219 schwarze 3219: mandoc_msg(MANDOCERR_ESC_BAD, r->parse,
1.238 schwarze 3220: ln, (int)(p - buf->buf), second);
1.277 schwarze 3221: return ROFF_IGN;
1.164 kristaps 3222: }
3223: ssz = (size_t)(p - second);
1.238 schwarze 3224: } else if (*second == '\0') {
1.260 schwarze 3225: mandoc_vmsg(MANDOCERR_TR_ODD, r->parse,
3226: ln, first - buf->buf, "tr %s", first);
1.164 kristaps 3227: second = " ";
1.165 kristaps 3228: p--;
1.164 kristaps 3229: }
3230:
1.167 kristaps 3231: if (fsz > 1) {
1.207 schwarze 3232: roff_setstrn(&r->xmbtab, first, fsz,
3233: second, ssz, 0);
1.167 kristaps 3234: continue;
3235: }
3236:
1.238 schwarze 3237: if (r->xtab == NULL)
1.207 schwarze 3238: r->xtab = mandoc_calloc(128,
3239: sizeof(struct roffstr));
1.167 kristaps 3240:
3241: free(r->xtab[(int)*first].p);
3242: r->xtab[(int)*first].p = mandoc_strndup(second, ssz);
3243: r->xtab[(int)*first].sz = ssz;
1.164 kristaps 3244: }
3245:
1.277 schwarze 3246: return ROFF_IGN;
1.164 kristaps 3247: }
3248:
3249: static enum rofferr
1.306 schwarze 3250: roff_rn(ROFF_ARGS)
3251: {
3252: const char *value;
3253: char *oldn, *newn, *end;
3254: size_t oldsz, newsz;
1.315 schwarze 3255: int deftype;
1.306 schwarze 3256:
3257: oldn = newn = buf->buf + pos;
3258: if (*oldn == '\0')
3259: return ROFF_IGN;
3260:
3261: oldsz = roff_getname(r, &newn, ln, pos);
3262: if (oldn[oldsz] == '\\' || *newn == '\0')
3263: return ROFF_IGN;
3264:
3265: end = newn;
3266: newsz = roff_getname(r, &end, ln, newn - buf->buf);
3267: if (newsz == 0)
3268: return ROFF_IGN;
3269:
1.315 schwarze 3270: deftype = ROFFDEF_ANY;
3271: value = roff_getstrn(r, oldn, oldsz, &deftype);
3272: switch (deftype) {
3273: case ROFFDEF_USER:
1.306 schwarze 3274: roff_setstrn(&r->strtab, newn, newsz, value, strlen(value), 0);
3275: roff_setstrn(&r->strtab, oldn, oldsz, NULL, 0, 0);
3276: roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
1.315 schwarze 3277: break;
3278: case ROFFDEF_PRE:
3279: roff_setstrn(&r->strtab, newn, newsz, value, strlen(value), 0);
3280: roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
3281: break;
3282: case ROFFDEF_REN:
1.306 schwarze 3283: roff_setstrn(&r->rentab, newn, newsz, value, strlen(value), 0);
3284: roff_setstrn(&r->rentab, oldn, oldsz, NULL, 0, 0);
1.315 schwarze 3285: roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
3286: break;
3287: case ROFFDEF_STD:
1.306 schwarze 3288: roff_setstrn(&r->rentab, newn, newsz, oldn, oldsz, 0);
1.315 schwarze 3289: roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
3290: break;
3291: default:
3292: roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
3293: roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
3294: break;
3295: }
1.306 schwarze 3296: return ROFF_IGN;
3297: }
3298:
3299: static enum rofferr
1.105 kristaps 3300: roff_so(ROFF_ARGS)
3301: {
1.249 schwarze 3302: char *name, *cp;
1.105 kristaps 3303:
1.238 schwarze 3304: name = buf->buf + pos;
1.224 schwarze 3305: mandoc_vmsg(MANDOCERR_SO, r->parse, ln, ppos, "so %s", name);
1.105 kristaps 3306:
3307: /*
3308: * Handle `so'. Be EXTREMELY careful, as we shouldn't be
3309: * opening anything that's not in our cwd or anything beneath
3310: * it. Thus, explicitly disallow traversing up the file-system
3311: * or using absolute paths.
3312: */
3313:
1.238 schwarze 3314: if (*name == '/' || strstr(name, "../") || strstr(name, "/..")) {
1.210 schwarze 3315: mandoc_vmsg(MANDOCERR_SO_PATH, r->parse, ln, ppos,
3316: ".so %s", name);
1.249 schwarze 3317: buf->sz = mandoc_asprintf(&cp,
3318: ".sp\nSee the file %s.\n.sp", name) + 1;
3319: free(buf->buf);
3320: buf->buf = cp;
3321: *offs = 0;
1.277 schwarze 3322: return ROFF_REPARSE;
1.105 kristaps 3323: }
3324:
3325: *offs = pos;
1.277 schwarze 3326: return ROFF_SO;
1.105 kristaps 3327: }
1.92 schwarze 3328:
1.266 schwarze 3329: /* --- user defined strings and macros ------------------------------------ */
3330:
1.106 kristaps 3331: static enum rofferr
3332: roff_userdef(ROFF_ARGS)
1.99 kristaps 3333: {
1.311 schwarze 3334: const char *arg[16], *ap;
1.106 kristaps 3335: char *cp, *n1, *n2;
1.292 schwarze 3336: int expand_count, i, ib, ie;
1.263 schwarze 3337: size_t asz, rsz;
1.106 kristaps 3338:
3339: /*
3340: * Collect pointers to macro argument strings
1.188 schwarze 3341: * and NUL-terminate them.
1.106 kristaps 3342: */
1.263 schwarze 3343:
1.273 schwarze 3344: r->argc = 0;
1.238 schwarze 3345: cp = buf->buf + pos;
1.311 schwarze 3346: for (i = 0; i < 16; i++) {
1.273 schwarze 3347: if (*cp == '\0')
3348: arg[i] = "";
3349: else {
3350: arg[i] = mandoc_getarg(r->parse, &cp, ln, &pos);
3351: r->argc = i + 1;
3352: }
3353: }
1.99 kristaps 3354:
1.106 kristaps 3355: /*
3356: * Expand macro arguments.
1.99 kristaps 3357: */
1.263 schwarze 3358:
3359: buf->sz = strlen(r->current_string) + 1;
1.292 schwarze 3360: n1 = n2 = cp = mandoc_malloc(buf->sz);
1.263 schwarze 3361: memcpy(n1, r->current_string, buf->sz);
1.292 schwarze 3362: expand_count = 0;
1.263 schwarze 3363: while (*cp != '\0') {
3364:
3365: /* Scan ahead for the next argument invocation. */
3366:
3367: if (*cp++ != '\\')
3368: continue;
3369: if (*cp++ != '$')
3370: continue;
1.274 schwarze 3371: if (*cp == '*') { /* \\$* inserts all arguments */
3372: ib = 0;
3373: ie = r->argc - 1;
3374: } else { /* \\$1 .. \\$9 insert one argument */
3375: ib = ie = *cp - '1';
3376: if (ib < 0 || ib > 8)
3377: continue;
3378: }
1.263 schwarze 3379: cp -= 2;
1.292 schwarze 3380:
3381: /*
3382: * Prevent infinite recursion.
3383: */
3384:
3385: if (cp >= n2)
3386: expand_count = 1;
3387: else if (++expand_count > EXPAND_LIMIT) {
3388: mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,
3389: ln, (int)(cp - n1), NULL);
1.293 schwarze 3390: free(buf->buf);
3391: buf->buf = n1;
1.329 schwarze 3392: *offs = 0;
1.292 schwarze 3393: return ROFF_IGN;
3394: }
1.263 schwarze 3395:
3396: /*
3397: * Determine the size of the expanded argument,
3398: * taking escaping of quotes into account.
3399: */
3400:
1.274 schwarze 3401: asz = ie > ib ? ie - ib : 0; /* for blanks */
3402: for (i = ib; i <= ie; i++) {
3403: for (ap = arg[i]; *ap != '\0'; ap++) {
3404: asz++;
3405: if (*ap == '"')
3406: asz += 3;
3407: }
1.263 schwarze 3408: }
3409: if (asz != 3) {
3410:
3411: /*
3412: * Determine the size of the rest of the
3413: * unexpanded macro, including the NUL.
3414: */
3415:
3416: rsz = buf->sz - (cp - n1) - 3;
3417:
3418: /*
3419: * When shrinking, move before
3420: * releasing the storage.
3421: */
3422:
3423: if (asz < 3)
3424: memmove(cp + asz, cp + 3, rsz);
3425:
3426: /*
3427: * Resize the storage for the macro
3428: * and readjust the parse pointer.
3429: */
3430:
3431: buf->sz += asz - 3;
3432: n2 = mandoc_realloc(n1, buf->sz);
3433: cp = n2 + (cp - n1);
3434: n1 = n2;
3435:
3436: /*
3437: * When growing, make room
3438: * for the expanded argument.
3439: */
3440:
3441: if (asz > 3)
3442: memmove(cp + asz, cp + 3, rsz);
3443: }
3444:
3445: /* Copy the expanded argument, escaping quotes. */
3446:
3447: n2 = cp;
1.274 schwarze 3448: for (i = ib; i <= ie; i++) {
3449: for (ap = arg[i]; *ap != '\0'; ap++) {
3450: if (*ap == '"') {
3451: memcpy(n2, "\\(dq", 4);
3452: n2 += 4;
3453: } else
3454: *n2++ = *ap;
3455: }
3456: if (i < ie)
3457: *n2++ = ' ';
1.106 kristaps 3458: }
1.99 kristaps 3459: }
3460:
1.106 kristaps 3461: /*
3462: * Replace the macro invocation
3463: * by the expanded macro.
3464: */
1.263 schwarze 3465:
1.238 schwarze 3466: free(buf->buf);
3467: buf->buf = n1;
1.248 schwarze 3468: *offs = 0;
1.106 kristaps 3469:
1.277 schwarze 3470: return buf->sz > 1 && buf->buf[buf->sz - 2] == '\n' ?
3471: ROFF_REPARSE : ROFF_APPEND;
1.99 kristaps 3472: }
1.121 schwarze 3473:
1.306 schwarze 3474: /*
3475: * Calling a high-level macro that was renamed with .rn.
3476: * r->current_string has already been set up by roff_parse().
3477: */
3478: static enum rofferr
3479: roff_renamed(ROFF_ARGS)
3480: {
3481: char *nbuf;
3482:
1.315 schwarze 3483: buf->sz = mandoc_asprintf(&nbuf, ".%s%s%s", r->current_string,
3484: buf->buf[pos] == '\0' ? "" : " ", buf->buf + pos) + 1;
1.306 schwarze 3485: free(buf->buf);
3486: buf->buf = nbuf;
1.329 schwarze 3487: *offs = 0;
1.306 schwarze 3488: return ROFF_CONT;
3489: }
3490:
1.212 schwarze 3491: static size_t
1.121 schwarze 3492: roff_getname(struct roff *r, char **cpp, int ln, int pos)
3493: {
3494: char *name, *cp;
1.212 schwarze 3495: size_t namesz;
1.121 schwarze 3496:
3497: name = *cpp;
3498: if ('\0' == *name)
1.277 schwarze 3499: return 0;
1.121 schwarze 3500:
1.212 schwarze 3501: /* Read until end of name and terminate it with NUL. */
3502: for (cp = name; 1; cp++) {
3503: if ('\0' == *cp || ' ' == *cp) {
3504: namesz = cp - name;
3505: break;
3506: }
1.121 schwarze 3507: if ('\\' != *cp)
3508: continue;
1.215 schwarze 3509: namesz = cp - name;
3510: if ('{' == cp[1] || '}' == cp[1])
3511: break;
1.121 schwarze 3512: cp++;
3513: if ('\\' == *cp)
3514: continue;
1.224 schwarze 3515: mandoc_vmsg(MANDOCERR_NAMESC, r->parse, ln, pos,
3516: "%.*s", (int)(cp - name + 1), name);
1.212 schwarze 3517: mandoc_escape((const char **)&cp, NULL, NULL);
3518: break;
1.121 schwarze 3519: }
3520:
3521: /* Read past spaces. */
3522: while (' ' == *cp)
3523: cp++;
3524:
3525: *cpp = cp;
1.277 schwarze 3526: return namesz;
1.121 schwarze 3527: }
3528:
1.106 kristaps 3529: /*
3530: * Store *string into the user-defined string called *name.
3531: * To clear an existing entry, call with (*r, *name, NULL, 0).
1.193 schwarze 3532: * append == 0: replace mode
3533: * append == 1: single-line append mode
3534: * append == 2: multiline append mode, append '\n' after each call
1.106 kristaps 3535: */
1.94 kristaps 3536: static void
1.106 kristaps 3537: roff_setstr(struct roff *r, const char *name, const char *string,
1.193 schwarze 3538: int append)
1.92 schwarze 3539: {
1.315 schwarze 3540: size_t namesz;
1.164 kristaps 3541:
1.315 schwarze 3542: namesz = strlen(name);
3543: roff_setstrn(&r->strtab, name, namesz, string,
1.207 schwarze 3544: string ? strlen(string) : 0, append);
1.315 schwarze 3545: roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
1.164 kristaps 3546: }
3547:
3548: static void
1.166 kristaps 3549: roff_setstrn(struct roffkv **r, const char *name, size_t namesz,
1.193 schwarze 3550: const char *string, size_t stringsz, int append)
1.164 kristaps 3551: {
1.166 kristaps 3552: struct roffkv *n;
1.164 kristaps 3553: char *c;
3554: int i;
3555: size_t oldch, newch;
1.92 schwarze 3556:
1.106 kristaps 3557: /* Search for an existing string with the same name. */
1.164 kristaps 3558: n = *r;
3559:
1.211 schwarze 3560: while (n && (namesz != n->key.sz ||
3561: strncmp(n->key.p, name, namesz)))
1.92 schwarze 3562: n = n->next;
1.94 kristaps 3563:
3564: if (NULL == n) {
1.106 kristaps 3565: /* Create a new string table entry. */
1.166 kristaps 3566: n = mandoc_malloc(sizeof(struct roffkv));
3567: n->key.p = mandoc_strndup(name, namesz);
3568: n->key.sz = namesz;
3569: n->val.p = NULL;
3570: n->val.sz = 0;
1.164 kristaps 3571: n->next = *r;
3572: *r = n;
1.193 schwarze 3573: } else if (0 == append) {
1.166 kristaps 3574: free(n->val.p);
3575: n->val.p = NULL;
3576: n->val.sz = 0;
1.106 kristaps 3577: }
3578:
3579: if (NULL == string)
3580: return;
3581:
3582: /*
3583: * One additional byte for the '\n' in multiline mode,
3584: * and one for the terminating '\0'.
3585: */
1.193 schwarze 3586: newch = stringsz + (1 < append ? 2u : 1u);
1.164 kristaps 3587:
1.166 kristaps 3588: if (NULL == n->val.p) {
3589: n->val.p = mandoc_malloc(newch);
3590: *n->val.p = '\0';
1.106 kristaps 3591: oldch = 0;
3592: } else {
1.166 kristaps 3593: oldch = n->val.sz;
3594: n->val.p = mandoc_realloc(n->val.p, oldch + newch);
1.106 kristaps 3595: }
3596:
3597: /* Skip existing content in the destination buffer. */
1.166 kristaps 3598: c = n->val.p + (int)oldch;
1.106 kristaps 3599:
3600: /* Append new content to the destination buffer. */
1.164 kristaps 3601: i = 0;
3602: while (i < (int)stringsz) {
1.106 kristaps 3603: /*
3604: * Rudimentary roff copy mode:
3605: * Handle escaped backslashes.
3606: */
1.164 kristaps 3607: if ('\\' == string[i] && '\\' == string[i + 1])
3608: i++;
3609: *c++ = string[i++];
1.106 kristaps 3610: }
1.94 kristaps 3611:
1.106 kristaps 3612: /* Append terminating bytes. */
1.193 schwarze 3613: if (1 < append)
1.106 kristaps 3614: *c++ = '\n';
1.163 kristaps 3615:
1.106 kristaps 3616: *c = '\0';
1.166 kristaps 3617: n->val.sz = (int)(c - n->val.p);
1.92 schwarze 3618: }
3619:
1.94 kristaps 3620: static const char *
1.325 schwarze 3621: roff_getstrn(struct roff *r, const char *name, size_t len,
1.315 schwarze 3622: int *deftype)
1.92 schwarze 3623: {
1.315 schwarze 3624: const struct roffkv *n;
1.325 schwarze 3625: int found, i;
1.315 schwarze 3626: enum roff_tok tok;
3627:
1.325 schwarze 3628: found = 0;
3629: for (n = r->strtab; n != NULL; n = n->next) {
3630: if (strncmp(name, n->key.p, len) != 0 ||
3631: n->key.p[len] != '\0' || n->val.p == NULL)
3632: continue;
3633: if (*deftype & ROFFDEF_USER) {
3634: *deftype = ROFFDEF_USER;
3635: return n->val.p;
3636: } else {
3637: found = 1;
3638: break;
3639: }
3640: }
3641: for (n = r->rentab; n != NULL; n = n->next) {
3642: if (strncmp(name, n->key.p, len) != 0 ||
3643: n->key.p[len] != '\0' || n->val.p == NULL)
3644: continue;
3645: if (*deftype & ROFFDEF_REN) {
3646: *deftype = ROFFDEF_REN;
3647: return n->val.p;
3648: } else {
3649: found = 1;
3650: break;
1.315 schwarze 3651: }
3652: }
1.325 schwarze 3653: for (i = 0; i < PREDEFS_MAX; i++) {
3654: if (strncmp(name, predefs[i].name, len) != 0 ||
3655: predefs[i].name[len] != '\0')
3656: continue;
3657: if (*deftype & ROFFDEF_PRE) {
3658: *deftype = ROFFDEF_PRE;
3659: return predefs[i].str;
3660: } else {
3661: found = 1;
3662: break;
1.315 schwarze 3663: }
3664: }
1.325 schwarze 3665: if (r->man->macroset != MACROSET_MAN) {
3666: for (tok = MDOC_Dd; tok < MDOC_MAX; tok++) {
3667: if (strncmp(name, roff_name[tok], len) != 0 ||
3668: roff_name[tok][len] != '\0')
3669: continue;
3670: if (*deftype & ROFFDEF_STD) {
3671: *deftype = ROFFDEF_STD;
3672: return NULL;
3673: } else {
3674: found = 1;
3675: break;
1.315 schwarze 3676: }
3677: }
3678: }
1.325 schwarze 3679: if (r->man->macroset != MACROSET_MDOC) {
3680: for (tok = MAN_TH; tok < MAN_MAX; tok++) {
3681: if (strncmp(name, roff_name[tok], len) != 0 ||
3682: roff_name[tok][len] != '\0')
3683: continue;
3684: if (*deftype & ROFFDEF_STD) {
3685: *deftype = ROFFDEF_STD;
3686: return NULL;
3687: } else {
3688: found = 1;
3689: break;
1.315 schwarze 3690: }
3691: }
1.325 schwarze 3692: }
3693:
3694: if (found == 0 && *deftype != ROFFDEF_ANY) {
3695: if (*deftype & ROFFDEF_REN) {
3696: /*
3697: * This might still be a request,
3698: * so do not treat it as undefined yet.
3699: */
3700: *deftype = ROFFDEF_UNDEF;
3701: return NULL;
1.315 schwarze 3702: }
1.325 schwarze 3703:
3704: /* Using an undefined string defines it to be empty. */
3705:
3706: roff_setstrn(&r->strtab, name, len, "", 0, 0);
3707: roff_setstrn(&r->rentab, name, len, NULL, 0, 0);
1.315 schwarze 3708: }
1.325 schwarze 3709:
1.315 schwarze 3710: *deftype = 0;
1.277 schwarze 3711: return NULL;
1.92 schwarze 3712: }
3713:
1.94 kristaps 3714: static void
1.167 kristaps 3715: roff_freestr(struct roffkv *r)
1.92 schwarze 3716: {
1.166 kristaps 3717: struct roffkv *n, *nn;
1.92 schwarze 3718:
1.167 kristaps 3719: for (n = r; n; n = nn) {
1.166 kristaps 3720: free(n->key.p);
3721: free(n->val.p);
1.92 schwarze 3722: nn = n->next;
3723: free(n);
3724: }
1.114 kristaps 3725: }
1.266 schwarze 3726:
3727: /* --- accessors and utility functions ------------------------------------ */
1.164 kristaps 3728:
3729: /*
3730: * Duplicate an input string, making the appropriate character
3731: * conversations (as stipulated by `tr') along the way.
3732: * Returns a heap-allocated string with all the replacements made.
3733: */
3734: char *
3735: roff_strdup(const struct roff *r, const char *p)
3736: {
1.166 kristaps 3737: const struct roffkv *cp;
1.164 kristaps 3738: char *res;
3739: const char *pp;
3740: size_t ssz, sz;
3741: enum mandoc_esc esc;
3742:
1.167 kristaps 3743: if (NULL == r->xmbtab && NULL == r->xtab)
1.277 schwarze 3744: return mandoc_strdup(p);
1.164 kristaps 3745: else if ('\0' == *p)
1.277 schwarze 3746: return mandoc_strdup("");
1.164 kristaps 3747:
3748: /*
3749: * Step through each character looking for term matches
3750: * (remember that a `tr' can be invoked with an escape, which is
3751: * a glyph but the escape is multi-character).
3752: * We only do this if the character hash has been initialised
3753: * and the string is >0 length.
3754: */
3755:
3756: res = NULL;
3757: ssz = 0;
3758:
3759: while ('\0' != *p) {
1.289 schwarze 3760: assert((unsigned int)*p < 128);
3761: if ('\\' != *p && r->xtab && r->xtab[(unsigned int)*p].p) {
1.167 kristaps 3762: sz = r->xtab[(int)*p].sz;
3763: res = mandoc_realloc(res, ssz + sz + 1);
3764: memcpy(res + ssz, r->xtab[(int)*p].p, sz);
3765: ssz += sz;
3766: p++;
3767: continue;
3768: } else if ('\\' != *p) {
3769: res = mandoc_realloc(res, ssz + 2);
3770: res[ssz++] = *p++;
3771: continue;
3772: }
3773:
1.164 kristaps 3774: /* Search for term matches. */
1.167 kristaps 3775: for (cp = r->xmbtab; cp; cp = cp->next)
1.166 kristaps 3776: if (0 == strncmp(p, cp->key.p, cp->key.sz))
1.164 kristaps 3777: break;
3778:
3779: if (NULL != cp) {
3780: /*
3781: * A match has been found.
3782: * Append the match to the array and move
3783: * forward by its keysize.
3784: */
1.207 schwarze 3785: res = mandoc_realloc(res,
3786: ssz + cp->val.sz + 1);
1.166 kristaps 3787: memcpy(res + ssz, cp->val.p, cp->val.sz);
3788: ssz += cp->val.sz;
3789: p += (int)cp->key.sz;
1.164 kristaps 3790: continue;
3791: }
3792:
1.167 kristaps 3793: /*
3794: * Handle escapes carefully: we need to copy
3795: * over just the escape itself, or else we might
3796: * do replacements within the escape itself.
3797: * Make sure to pass along the bogus string.
3798: */
3799: pp = p++;
3800: esc = mandoc_escape(&p, NULL, NULL);
3801: if (ESCAPE_ERROR == esc) {
3802: sz = strlen(pp);
1.164 kristaps 3803: res = mandoc_realloc(res, ssz + sz + 1);
3804: memcpy(res + ssz, pp, sz);
1.167 kristaps 3805: break;
1.164 kristaps 3806: }
1.207 schwarze 3807: /*
3808: * We bail out on bad escapes.
1.167 kristaps 3809: * No need to warn: we already did so when
3810: * roff_res() was called.
3811: */
3812: sz = (int)(p - pp);
3813: res = mandoc_realloc(res, ssz + sz + 1);
3814: memcpy(res + ssz, pp, sz);
3815: ssz += sz;
1.164 kristaps 3816: }
3817:
3818: res[(int)ssz] = '\0';
1.277 schwarze 3819: return res;
1.227 schwarze 3820: }
3821:
3822: int
3823: roff_getformat(const struct roff *r)
3824: {
3825:
1.277 schwarze 3826: return r->format;
1.174 kristaps 3827: }
3828:
3829: /*
1.207 schwarze 3830: * Find out whether a line is a macro line or not.
1.174 kristaps 3831: * If it is, adjust the current position and return one; if it isn't,
3832: * return zero and don't change the current position.
3833: * If the control character has been set with `.cc', then let that grain
3834: * precedence.
3835: * This is slighly contrary to groff, where using the non-breaking
3836: * control character when `cc' has been invoked will cause the
3837: * non-breaking macro contents to be printed verbatim.
3838: */
3839: int
3840: roff_getcontrol(const struct roff *r, const char *cp, int *ppos)
3841: {
3842: int pos;
3843:
3844: pos = *ppos;
3845:
1.303 schwarze 3846: if (r->control != '\0' && cp[pos] == r->control)
1.174 kristaps 3847: pos++;
1.303 schwarze 3848: else if (r->control != '\0')
1.277 schwarze 3849: return 0;
1.174 kristaps 3850: else if ('\\' == cp[pos] && '.' == cp[pos + 1])
3851: pos += 2;
3852: else if ('.' == cp[pos] || '\'' == cp[pos])
3853: pos++;
3854: else
1.277 schwarze 3855: return 0;
1.174 kristaps 3856:
3857: while (' ' == cp[pos] || '\t' == cp[pos])
3858: pos++;
3859:
3860: *ppos = pos;
1.277 schwarze 3861: return 1;
1.74 kristaps 3862: }
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