mandoc/roff.c - diff

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Diff for /mandoc/roff.c between version 1.210 and 1.294

version 1.210, 2014/06/25 00:20:19

version 1.294, 2017/04/24 23:06:18

Line 1

/* $Id$ */

* Permission to use, copy, modify, and distribute this software for any

* purpose with or without fee is hereby granted, provided that the above

Line 15

* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <sys/types.h>

#include <assert.h>

#include <ctype.h>

#include <limits.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "mandoc.h"

#include "mandoc_aux.h"

#include "libroff.h"

#include "roff.h"

#include "libmandoc.h"

#include "roff_int.h"

#include "libroff.h"

/* Maximum number of nested if-else conditionals. */

#define RSTACK_MAX 128

/* Maximum number of string expansions per line, to break infinite loops. */

#define EXPAND_LIMIT 1000

enum rofft {

/* --- data types --------------------------------------------------------- */

ROFF_ad,

ROFF_am,

ROFF_ami,

ROFF_am1,

ROFF_as,

ROFF_cc,

ROFF_ce,

ROFF_de,

ROFF_dei,

ROFF_de1,

ROFF_ds,

ROFF_el,

ROFF_fam,

ROFF_hw,

ROFF_hy,

ROFF_ie,

ROFF_if,

ROFF_ig,

ROFF_it,

ROFF_ne,

ROFF_nh,

ROFF_nr,

ROFF_ns,

ROFF_ps,

ROFF_rm,

ROFF_rr,

ROFF_so,

ROFF_ta,

ROFF_tr,

ROFF_Dd,

ROFF_TH,

ROFF_TS,

ROFF_TE,

ROFF_T_,

ROFF_EQ,

ROFF_EN,

ROFF_cblock,

ROFF_USERDEF,

ROFF_MAX

};

* An incredibly-simple string buffer.

Line 106 struct roffreg {

Line 66 struct roffreg {

struct roff {

struct mparse *parse; /* parse point */

int options; /* parse options */

struct roffnode *last; /* leaf of stack */

int rstack[RSTACK_MAX]; /* stack of !`ie' rules */

int *rstack; /* stack of inverted `ie' values */

char control; /* control character */

int rstackpos; /* position in rstack */

struct roffreg *regtab; /* number registers */

struct roffkv *strtab; /* user-defined strings & macros */

struct roffkv *xmbtab; /* multi-byte trans table (`tr') */

Line 122 struct roff {

Line 79 struct roff {

struct eqn_node *last_eqn; /* last equation parsed */

struct eqn_node *first_eqn; /* first equation parsed */

struct eqn_node *eqn; /* current equation being parsed */

int eqn_inline; /* current equation is inline */

int options; /* parse options */

int rstacksz; /* current size limit of rstack */

int rstackpos; /* position in rstack */

int format; /* current file in mdoc or man format */

int argc; /* number of args of the last macro */

char control; /* control character */

};

struct roffnode {

enum rofft tok; /* type of node */

enum roff_tok tok; /* type of node */

struct roffnode *parent; /* up one in stack */

int line; /* parse line */

int col; /* parse col */

Line 136 struct roffnode {

Line 100 struct roffnode {

};

#define ROFF_ARGS struct roff *r, /* parse ctx */ \

enum rofft tok, /* tok of macro */ \

enum roff_tok tok, /* tok of macro */ \

char **bufp, /* input buffer */ \

struct buf *buf, /* input buffer */ \

size_t *szp, /* size of input buffer */ \

int ln, /* parse line */ \

int ppos, /* original pos in buffer */ \

int pos, /* current pos in buffer */ \

Line 164 struct predef {

Line 127 struct predef {

#define PREDEF(__name, __str) \

{ (__name), (__str) },

static enum rofft roffhash_find(const char *, size_t);

/* --- function prototypes ------------------------------------------------ */

static enum roff_tok roffhash_find(const char *, size_t);

static void roffhash_init(void);

static void roffnode_cleanscope(struct roff *);

static void roffnode_pop(struct roff *);

static void roffnode_push(struct roff *, enum rofft,

static void roffnode_push(struct roff *, enum roff_tok,

const char *, int, int);

static enum rofferr roff_block(ROFF_ARGS);

static enum rofferr roff_block_text(ROFF_ARGS);

static enum rofferr roff_block_sub(ROFF_ARGS);

static enum rofferr roff_brp(ROFF_ARGS);

static enum rofferr roff_cblock(ROFF_ARGS);

static enum rofferr roff_cc(ROFF_ARGS);

static void roff_ccond(struct roff *, int, int);

Line 180 static enum rofferr roff_cond(ROFF_ARGS);

Line 146 static enum rofferr roff_cond(ROFF_ARGS);

static enum rofferr roff_cond_text(ROFF_ARGS);

static enum rofferr roff_cond_sub(ROFF_ARGS);

static enum rofferr roff_ds(ROFF_ARGS);

static int roff_evalcond(const char *, int *);

static enum rofferr roff_eqndelim(struct roff *, struct buf *, int);

static int roff_evalnum(const char *, int *, int *, int);

static int roff_evalcond(struct roff *r, int, char *, int *);

static int roff_evalpar(const char *, int *, int *);

static int roff_evalnum(struct roff *, int,

const char *, int *, int *, int);

static int roff_evalpar(struct roff *, int,

const char *, int *, int *, int);

static int roff_evalstrcond(const char *, int *);

static void roff_free1(struct roff *);

static void roff_freereg(struct roffreg *);

static void roff_freestr(struct roffkv *);

static char *roff_getname(struct roff *, char **, int, int);

static size_t roff_getname(struct roff *, char **, int, int);

static int roff_getnum(const char *, int *, int *);

static int roff_getnum(const char *, int *, int *, int);

static int roff_getop(const char *, int *, char *);

static int roff_getregn(const struct roff *,

const char *, size_t);

static int roff_getregro(const char *name);

static int roff_getregro(const struct roff *,

const char *name);

static const char *roff_getstrn(const struct roff *,

const char *, size_t);

static int roff_hasregn(const struct roff *,

const char *, size_t);

static enum rofferr roff_insec(ROFF_ARGS);

static enum rofferr roff_it(ROFF_ARGS);

static enum rofferr roff_line_ignore(ROFF_ARGS);

static void roff_man_alloc1(struct roff_man *);

static void roff_man_free1(struct roff_man *);

static enum rofferr roff_nr(ROFF_ARGS);

static void roff_openeqn(struct roff *, const char *,

static enum roff_tok roff_parse(struct roff *, char *, int *,

int, int, const char *);

int, int);

static enum rofft roff_parse(struct roff *, const char *, int *);

static enum rofferr roff_parsetext(struct buf *, int, int *);

static enum rofferr roff_parsetext(char **, size_t *, int, int *);

static enum rofferr roff_res(struct roff *, struct buf *, int, int);

static enum rofferr roff_res(struct roff *,

char **, size_t *, int, int);

static enum rofferr roff_rm(ROFF_ARGS);

static enum rofferr roff_rr(ROFF_ARGS);

static void roff_setstr(struct roff *,

Line 219 static enum rofferr roff_TS(ROFF_ARGS);

Line 192 static enum rofferr roff_TS(ROFF_ARGS);

static enum rofferr roff_EQ(ROFF_ARGS);

static enum rofferr roff_EN(ROFF_ARGS);

static enum rofferr roff_T_(ROFF_ARGS);

static enum rofferr roff_unsupp(ROFF_ARGS);

static enum rofferr roff_userdef(ROFF_ARGS);

/* --- constant data ------------------------------------------------------ */

/* See roffhash_find() */

#define ASCII_HI 126

#define ASCII_LO 33

#define HASHWIDTH (ASCII_HI - ASCII_LO + 1)

#define ROFFNUM_SCALE (1 << 0) /* Honour scaling in roff_getnum(). */

#define ROFFNUM_WHITE (1 << 1) /* Skip whitespace in roff_evalnum(). */

const char *__roff_name[MAN_MAX + 1] = {

"ab", "ad", "af", "aln",

"als", "am", "am1", "ami",

"ami1", "as", "as1", "asciify",

"backtrace", "bd", "bleedat", "blm",

"box", "boxa", "bp", "BP",

"break", "breakchar", "brnl", "brp",

"brpnl", "c2", "cc", "ce",

"cf", "cflags", "ch", "char",

"chop", "class", "close", "CL",

"color", "composite", "continue", "cp",

"cropat", "cs", "cu", "da",

"dch", "Dd", "de", "de1",

"defcolor", "dei", "dei1", "device",

"devicem", "di", "do", "ds",

"ds1", "dwh", "dt", "ec",

"ecr", "ecs", "el", "em",

"EN", "eo", "EP", "EQ",

"errprint", "ev", "evc", "ex",

"fallback", "fam", "fc", "fchar",

"fcolor", "fdeferlig", "feature", "fkern",

"fl", "flig", "fp", "fps",

"fschar", "fspacewidth", "fspecial", "ftr",

"fzoom", "gcolor", "hc", "hcode",

"hidechar", "hla", "hlm", "hpf",

"hpfa", "hpfcode", "hw", "hy",

"hylang", "hylen", "hym", "hypp",

"hys", "ie", "if", "ig",

"index", "it", "itc", "IX",

"kern", "kernafter", "kernbefore", "kernpair",

"lc", "lc_ctype", "lds", "length",

"letadj", "lf", "lg", "lhang",

"linetabs", "lnr", "lnrf", "lpfx",

"ls", "lsm", "lt", "mc",

"mediasize", "minss", "mk", "mso",

"na", "ne", "nh", "nhychar",

"nm", "nn", "nop", "nr",

"nrf", "nroff", "ns", "nx",

"open", "opena", "os", "output",

"padj", "papersize", "pc", "pev",

"pi", "PI", "pl", "pm",

"pn", "pnr", "po", "ps",

"psbb", "pshape", "pso", "ptr",

"pvs", "rchar", "rd", "recursionlimit",

"return", "rfschar", "rhang", "rj",

"rm", "rn", "rnn", "rr",

"rs", "rt", "schar", "sentchar",

"shc", "shift", "sizes", "so",

"spacewidth", "special", "spreadwarn", "ss",

"sty", "substring", "sv", "sy",

"T&", "ta", "tc", "TE",

"TH", "ti", "tkf", "tl",

"tm", "tm1", "tmc", "tr",

"track", "transchar", "trf", "trimat",

"trin", "trnt", "troff", "TS",

"uf", "ul", "unformat", "unwatch",

"unwatchn", "vpt", "vs", "warn",

"warnscale", "watch", "watchlength", "watchn",

"wh", "while", "write", "writec",

"writem", "xflag", ".", NULL,

"text",

"Dd", "Dt", "Os", "Sh",

"Ss", "Pp", "D1", "Dl",

"Bd", "Ed", "Bl", "El",

"It", "Ad", "An", "Ap",

"Ar", "Cd", "Cm", "Dv",

"Er", "Ev", "Ex", "Fa",

"Fd", "Fl", "Fn", "Ft",

"Ic", "In", "Li", "Nd",

"Nm", "Op", "Ot", "Pa",

"Rv", "St", "Va", "Vt",

"Xr", "%A", "%B", "%D",

"%I", "%J", "%N", "%O",

"%P", "%R", "%T", "%V",

"Ac", "Ao", "Aq", "At",

"Bc", "Bf", "Bo", "Bq",

"Bsx", "Bx", "Db", "Dc",

"Do", "Dq", "Ec", "Ef",

"Em", "Eo", "Fx", "Ms",

"No", "Ns", "Nx", "Ox",

"Pc", "Pf", "Po", "Pq",

"Qc", "Ql", "Qo", "Qq",

"Re", "Rs", "Sc", "So",

"Sq", "Sm", "Sx", "Sy",

"Tn", "Ux", "Xc", "Xo",

"Fo", "Fc", "Oo", "Oc",

"Bk", "Ek", "Bt", "Hf",

"Fr", "Ud", "Lb", "Lp",

"Lk", "Mt", "Brq", "Bro",

"Brc", "%C", "Es", "En",

"Dx", "%Q", "br", "sp",

"%U", "Ta", "ll", NULL,

"TH", "SH", "SS", "TP",

"LP", "PP", "P", "IP",

"HP", "SM", "SB", "BI",

"IB", "BR", "RB", "R",

"B", "I", "IR", "RI",

"br", "sp", "nf", "fi",

"RE", "RS", "DT", "UC",

"PD", "AT", "in", "ft",

"OP", "EX", "EE", "UR",

"UE", "ll", NULL

};

const char *const *roff_name = __roff_name;

static struct roffmac *hash[HASHWIDTH];

static struct roffmac roffs[ROFF_MAX] = {

static struct roffmac roffs[TOKEN_NONE] = {

{ "ab", roff_unsupp, NULL, NULL, 0, NULL },

{ "ad", roff_line_ignore, NULL, NULL, 0, NULL },

{ "af", roff_line_ignore, NULL, NULL, 0, NULL },

{ "aln", roff_unsupp, NULL, NULL, 0, NULL },

{ "als", roff_unsupp, NULL, NULL, 0, NULL },

{ "am", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "ami", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "am1", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "ami", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "ami1", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "as", roff_ds, NULL, NULL, 0, NULL },

{ "as1", roff_ds, NULL, NULL, 0, NULL },

{ "asciify", roff_unsupp, NULL, NULL, 0, NULL },

{ "backtrace", roff_line_ignore, NULL, NULL, 0, NULL },

{ "bd", roff_line_ignore, NULL, NULL, 0, NULL },

{ "bleedat", roff_line_ignore, NULL, NULL, 0, NULL },

{ "blm", roff_unsupp, NULL, NULL, 0, NULL },

{ "box", roff_unsupp, NULL, NULL, 0, NULL },

{ "boxa", roff_unsupp, NULL, NULL, 0, NULL },

{ "bp", roff_line_ignore, NULL, NULL, 0, NULL },

{ "BP", roff_unsupp, NULL, NULL, 0, NULL },

{ "break", roff_unsupp, NULL, NULL, 0, NULL },

{ "breakchar", roff_line_ignore, NULL, NULL, 0, NULL },

{ "brnl", roff_line_ignore, NULL, NULL, 0, NULL },

{ "brp", roff_brp, NULL, NULL, 0, NULL },

{ "brpnl", roff_line_ignore, NULL, NULL, 0, NULL },

{ "c2", roff_unsupp, NULL, NULL, 0, NULL },

{ "cc", roff_cc, NULL, NULL, 0, NULL },

{ "ce", roff_line_ignore, NULL, NULL, 0, NULL },

{ "cf", roff_insec, NULL, NULL, 0, NULL },

{ "cflags", roff_line_ignore, NULL, NULL, 0, NULL },

{ "ch", roff_line_ignore, NULL, NULL, 0, NULL },

{ "char", roff_unsupp, NULL, NULL, 0, NULL },

{ "chop", roff_unsupp, NULL, NULL, 0, NULL },

{ "class", roff_line_ignore, NULL, NULL, 0, NULL },

{ "close", roff_insec, NULL, NULL, 0, NULL },

{ "CL", roff_unsupp, NULL, NULL, 0, NULL },

{ "color", roff_line_ignore, NULL, NULL, 0, NULL },

{ "composite", roff_unsupp, NULL, NULL, 0, NULL },

{ "continue", roff_unsupp, NULL, NULL, 0, NULL },

{ "cp", roff_line_ignore, NULL, NULL, 0, NULL },

{ "cropat", roff_line_ignore, NULL, NULL, 0, NULL },

{ "cs", roff_line_ignore, NULL, NULL, 0, NULL },

{ "cu", roff_line_ignore, NULL, NULL, 0, NULL },

{ "da", roff_unsupp, NULL, NULL, 0, NULL },

{ "dch", roff_unsupp, NULL, NULL, 0, NULL },

{ "Dd", roff_Dd, NULL, NULL, 0, NULL },

{ "de", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "dei", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "de1", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "defcolor", roff_line_ignore, NULL, NULL, 0, NULL },

{ "dei", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "dei1", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "device", roff_unsupp, NULL, NULL, 0, NULL },

{ "devicem", roff_unsupp, NULL, NULL, 0, NULL },

{ "di", roff_unsupp, NULL, NULL, 0, NULL },

{ "do", roff_unsupp, NULL, NULL, 0, NULL },

{ "ds", roff_ds, NULL, NULL, 0, NULL },

{ "ds1", roff_ds, NULL, NULL, 0, NULL },

{ "dwh", roff_unsupp, NULL, NULL, 0, NULL },

{ "dt", roff_unsupp, NULL, NULL, 0, NULL },

{ "ec", roff_unsupp, NULL, NULL, 0, NULL },

{ "ecr", roff_unsupp, NULL, NULL, 0, NULL },

{ "ecs", roff_unsupp, NULL, NULL, 0, NULL },

{ "el", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL },

{ "em", roff_unsupp, NULL, NULL, 0, NULL },

{ "EN", roff_EN, NULL, NULL, 0, NULL },

{ "eo", roff_unsupp, NULL, NULL, 0, NULL },

{ "EP", roff_unsupp, NULL, NULL, 0, NULL },

{ "EQ", roff_EQ, NULL, NULL, 0, NULL },

{ "errprint", roff_line_ignore, NULL, NULL, 0, NULL },

{ "ev", roff_unsupp, NULL, NULL, 0, NULL },

{ "evc", roff_unsupp, NULL, NULL, 0, NULL },

{ "ex", roff_unsupp, NULL, NULL, 0, NULL },

{ "fallback", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fam", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fc", roff_unsupp, NULL, NULL, 0, NULL },

{ "fchar", roff_unsupp, NULL, NULL, 0, NULL },

{ "fcolor", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fdeferlig", roff_line_ignore, NULL, NULL, 0, NULL },

{ "feature", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fkern", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fl", roff_line_ignore, NULL, NULL, 0, NULL },

{ "flig", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fp", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fps", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fschar", roff_unsupp, NULL, NULL, 0, NULL },

{ "fspacewidth", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fspecial", roff_line_ignore, NULL, NULL, 0, NULL },

{ "ftr", roff_line_ignore, NULL, NULL, 0, NULL },

{ "fzoom", roff_line_ignore, NULL, NULL, 0, NULL },

{ "gcolor", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hc", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hcode", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hidechar", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hla", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hlm", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hpf", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hpfa", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hpfcode", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hw", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hy", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hylang", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hylen", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hym", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hypp", roff_line_ignore, NULL, NULL, 0, NULL },

{ "hys", roff_line_ignore, NULL, NULL, 0, NULL },

{ "ie", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL },

{ "if", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL },

{ "ig", roff_block, roff_block_text, roff_block_sub, 0, NULL },

{ "index", roff_unsupp, NULL, NULL, 0, NULL },

{ "it", roff_it, NULL, NULL, 0, NULL },

{ "itc", roff_unsupp, NULL, NULL, 0, NULL },

{ "IX", roff_line_ignore, NULL, NULL, 0, NULL },

{ "kern", roff_line_ignore, NULL, NULL, 0, NULL },

{ "kernafter", roff_line_ignore, NULL, NULL, 0, NULL },

{ "kernbefore", roff_line_ignore, NULL, NULL, 0, NULL },

{ "kernpair", roff_line_ignore, NULL, NULL, 0, NULL },

{ "lc", roff_unsupp, NULL, NULL, 0, NULL },

{ "lc_ctype", roff_unsupp, NULL, NULL, 0, NULL },

{ "lds", roff_unsupp, NULL, NULL, 0, NULL },

{ "length", roff_unsupp, NULL, NULL, 0, NULL },

{ "letadj", roff_line_ignore, NULL, NULL, 0, NULL },

{ "lf", roff_insec, NULL, NULL, 0, NULL },

{ "lg", roff_line_ignore, NULL, NULL, 0, NULL },

{ "lhang", roff_line_ignore, NULL, NULL, 0, NULL },

{ "linetabs", roff_unsupp, NULL, NULL, 0, NULL },

{ "lnr", roff_unsupp, NULL, NULL, 0, NULL },

{ "lnrf", roff_unsupp, NULL, NULL, 0, NULL },

{ "lpfx", roff_unsupp, NULL, NULL, 0, NULL },

{ "ls", roff_line_ignore, NULL, NULL, 0, NULL },

{ "lsm", roff_unsupp, NULL, NULL, 0, NULL },

{ "lt", roff_line_ignore, NULL, NULL, 0, NULL },

{ "mc", roff_line_ignore, NULL, NULL, 0, NULL },

{ "mediasize", roff_line_ignore, NULL, NULL, 0, NULL },

{ "minss", roff_line_ignore, NULL, NULL, 0, NULL },

{ "mk", roff_line_ignore, NULL, NULL, 0, NULL },

{ "mso", roff_insec, NULL, NULL, 0, NULL },

{ "na", roff_line_ignore, NULL, NULL, 0, NULL },

{ "ne", roff_line_ignore, NULL, NULL, 0, NULL },

{ "nh", roff_line_ignore, NULL, NULL, 0, NULL },

{ "nhychar", roff_line_ignore, NULL, NULL, 0, NULL },

{ "nm", roff_unsupp, NULL, NULL, 0, NULL },

{ "nn", roff_unsupp, NULL, NULL, 0, NULL },

{ "nop", roff_unsupp, NULL, NULL, 0, NULL },

{ "nr", roff_nr, NULL, NULL, 0, NULL },

{ "nrf", roff_unsupp, NULL, NULL, 0, NULL },

{ "nroff", roff_line_ignore, NULL, NULL, 0, NULL },

{ "ns", roff_line_ignore, NULL, NULL, 0, NULL },

{ "nx", roff_insec, NULL, NULL, 0, NULL },

{ "open", roff_insec, NULL, NULL, 0, NULL },

{ "opena", roff_insec, NULL, NULL, 0, NULL },

{ "os", roff_line_ignore, NULL, NULL, 0, NULL },

{ "output", roff_unsupp, NULL, NULL, 0, NULL },

{ "padj", roff_line_ignore, NULL, NULL, 0, NULL },

{ "papersize", roff_line_ignore, NULL, NULL, 0, NULL },

{ "pc", roff_line_ignore, NULL, NULL, 0, NULL },

{ "pev", roff_line_ignore, NULL, NULL, 0, NULL },

{ "pi", roff_insec, NULL, NULL, 0, NULL },

{ "PI", roff_unsupp, NULL, NULL, 0, NULL },

{ "pl", roff_line_ignore, NULL, NULL, 0, NULL },

{ "pm", roff_line_ignore, NULL, NULL, 0, NULL },

{ "pn", roff_line_ignore, NULL, NULL, 0, NULL },

{ "pnr", roff_line_ignore, NULL, NULL, 0, NULL },

{ "po", roff_line_ignore, NULL, NULL, 0, NULL },

{ "ps", roff_line_ignore, NULL, NULL, 0, NULL },

{ "psbb", roff_unsupp, NULL, NULL, 0, NULL },

{ "pshape", roff_unsupp, NULL, NULL, 0, NULL },

{ "pso", roff_insec, NULL, NULL, 0, NULL },

{ "ptr", roff_line_ignore, NULL, NULL, 0, NULL },

{ "pvs", roff_line_ignore, NULL, NULL, 0, NULL },

{ "rchar", roff_unsupp, NULL, NULL, 0, NULL },

{ "rd", roff_line_ignore, NULL, NULL, 0, NULL },

{ "recursionlimit", roff_line_ignore, NULL, NULL, 0, NULL },

{ "return", roff_unsupp, NULL, NULL, 0, NULL },

{ "rfschar", roff_unsupp, NULL, NULL, 0, NULL },

{ "rhang", roff_line_ignore, NULL, NULL, 0, NULL },

{ "rj", roff_line_ignore, NULL, NULL, 0, NULL },

{ "rm", roff_rm, NULL, NULL, 0, NULL },

{ "rn", roff_unsupp, NULL, NULL, 0, NULL },

{ "rnn", roff_unsupp, NULL, NULL, 0, NULL },

{ "rr", roff_rr, NULL, NULL, 0, NULL },

{ "rs", roff_line_ignore, NULL, NULL, 0, NULL },

{ "rt", roff_line_ignore, NULL, NULL, 0, NULL },

{ "schar", roff_unsupp, NULL, NULL, 0, NULL },

{ "sentchar", roff_line_ignore, NULL, NULL, 0, NULL },

{ "shc", roff_line_ignore, NULL, NULL, 0, NULL },

{ "shift", roff_unsupp, NULL, NULL, 0, NULL },

{ "sizes", roff_line_ignore, NULL, NULL, 0, NULL },

{ "so", roff_so, NULL, NULL, 0, NULL },

{ "ta", roff_line_ignore, NULL, NULL, 0, NULL },

{ "spacewidth", roff_line_ignore, NULL, NULL, 0, NULL },

{ "tr", roff_tr, NULL, NULL, 0, NULL },

{ "special", roff_line_ignore, NULL, NULL, 0, NULL },

{ "Dd", roff_Dd, NULL, NULL, 0, NULL },

{ "spreadwarn", roff_line_ignore, NULL, NULL, 0, NULL },

{ "ss", roff_line_ignore, NULL, NULL, 0, NULL },

{ "sty", roff_line_ignore, NULL, NULL, 0, NULL },

{ "substring", roff_unsupp, NULL, NULL, 0, NULL },

{ "sv", roff_line_ignore, NULL, NULL, 0, NULL },

{ "sy", roff_insec, NULL, NULL, 0, NULL },

{ "T&", roff_T_, NULL, NULL, 0, NULL },

{ "ta", roff_unsupp, NULL, NULL, 0, NULL },

{ "tc", roff_unsupp, NULL, NULL, 0, NULL },

{ "TE", roff_TE, NULL, NULL, 0, NULL },

{ "TH", roff_TH, NULL, NULL, 0, NULL },

{ "ti", roff_unsupp, NULL, NULL, 0, NULL },

{ "tkf", roff_line_ignore, NULL, NULL, 0, NULL },

{ "tl", roff_unsupp, NULL, NULL, 0, NULL },

{ "tm", roff_line_ignore, NULL, NULL, 0, NULL },

{ "tm1", roff_line_ignore, NULL, NULL, 0, NULL },

{ "tmc", roff_line_ignore, NULL, NULL, 0, NULL },

{ "tr", roff_tr, NULL, NULL, 0, NULL },

{ "track", roff_line_ignore, NULL, NULL, 0, NULL },

{ "transchar", roff_line_ignore, NULL, NULL, 0, NULL },

{ "trf", roff_insec, NULL, NULL, 0, NULL },

{ "trimat", roff_line_ignore, NULL, NULL, 0, NULL },

{ "trin", roff_unsupp, NULL, NULL, 0, NULL },

{ "trnt", roff_unsupp, NULL, NULL, 0, NULL },

{ "troff", roff_line_ignore, NULL, NULL, 0, NULL },

{ "TS", roff_TS, NULL, NULL, 0, NULL },

{ "TE", roff_TE, NULL, NULL, 0, NULL },

{ "uf", roff_line_ignore, NULL, NULL, 0, NULL },

{ "T&", roff_T_, NULL, NULL, 0, NULL },

{ "ul", roff_line_ignore, NULL, NULL, 0, NULL },

{ "EQ", roff_EQ, NULL, NULL, 0, NULL },

{ "unformat", roff_unsupp, NULL, NULL, 0, NULL },

{ "EN", roff_EN, NULL, NULL, 0, NULL },

{ "unwatch", roff_line_ignore, NULL, NULL, 0, NULL },

{ "unwatchn", roff_line_ignore, NULL, NULL, 0, NULL },

{ "vpt", roff_line_ignore, NULL, NULL, 0, NULL },

{ "vs", roff_line_ignore, NULL, NULL, 0, NULL },

{ "warn", roff_line_ignore, NULL, NULL, 0, NULL },

{ "warnscale", roff_line_ignore, NULL, NULL, 0, NULL },

{ "watch", roff_line_ignore, NULL, NULL, 0, NULL },

{ "watchlength", roff_line_ignore, NULL, NULL, 0, NULL },

{ "watchn", roff_line_ignore, NULL, NULL, 0, NULL },

{ "wh", roff_unsupp, NULL, NULL, 0, NULL },

{ "while", roff_unsupp, NULL, NULL, 0, NULL },

{ "write", roff_insec, NULL, NULL, 0, NULL },

{ "writec", roff_insec, NULL, NULL, 0, NULL },

{ "writem", roff_insec, NULL, NULL, 0, NULL },

{ "xflag", roff_line_ignore, NULL, NULL, 0, NULL },

{ ".", roff_cblock, NULL, NULL, 0, NULL },

{ NULL, roff_userdef, NULL, NULL, 0, NULL },

};

Line 316 static int roffit_lines; /* number of lines to delay

Line 598 static int roffit_lines; /* number of lines to delay

static char *roffit_macro; /* nil-terminated macro line */

/* --- request table ------------------------------------------------------ */

static void

roffhash_init(void)

{

Line 338 roffhash_init(void)

Line 622 roffhash_init(void)

}

* Look up a roff token by its name. Returns ROFF_MAX if no macro by

* Look up a roff token by its name. Returns TOKEN_NONE if no macro by

* the nil-terminated string name could be found.

static enum rofft

static enum roff_tok

roffhash_find(const char *p, size_t s)

{

int buc;

Line 355 roffhash_find(const char *p, size_t s)

Line 639 roffhash_find(const char *p, size_t s)

if (p[0] < ASCII_LO || p[0] > ASCII_HI)

return(ROFF_MAX);

return TOKEN_NONE;

buc = ROFF_HASH(p);

if (NULL == (n = hash[buc]))

return(ROFF_MAX);

return TOKEN_NONE;

for ( ; n; n = n->next)

if (0 == strncmp(n->name, p, s) && '\0' == n->name[(int)s])

return((enum rofft)(n - roffs));

return (enum roff_tok)(n - roffs);

return(ROFF_MAX);

return TOKEN_NONE;

}

/* --- stack of request blocks -------------------------------------------- */

* Pop the current node off of the stack of roff instructions currently

* pending.

Line 391 roffnode_pop(struct roff *r)

Line 677 roffnode_pop(struct roff *r)

* removed with roffnode_pop().

static void

roffnode_push(struct roff *r, enum rofft tok, const char *name,

roffnode_push(struct roff *r, enum roff_tok tok, const char *name,

int line, int col)

{

struct roffnode *p;

Line 408 roffnode_push(struct roff *r, enum rofft tok, const ch

Line 694 roffnode_push(struct roff *r, enum rofft tok, const ch

r->last = p;

}

/* --- roff parser state data management ---------------------------------- */

static void

roff_free1(struct roff *r)

{

Line 419 roff_free1(struct roff *r)

Line 707 roff_free1(struct roff *r)

r->first_tbl = tbl->next;

tbl_free(tbl);

}

r->first_tbl = r->last_tbl = r->tbl = NULL;

while (NULL != (e = r->first_eqn)) {

r->first_eqn = e->next;

eqn_free(e);

}

r->first_eqn = r->last_eqn = r->eqn = NULL;

while (r->last)

roffnode_pop(r);

roff_freestr(r->strtab);

free (r->rstack);

roff_freestr(r->xmbtab);

r->rstack = NULL;

r->rstacksz = 0;

r->rstackpos = -1;

r->strtab = r->xmbtab = NULL;

roff_freereg(r->regtab);

r->regtab = NULL;

roff_freestr(r->strtab);

roff_freestr(r->xmbtab);

r->strtab = r->xmbtab = NULL;

if (r->xtab)

for (i = 0; i < 128; i++)

free(r->xtab[i].p);

free(r->xtab);

r->xtab = NULL;

}

Line 454 roff_reset(struct roff *r)

Line 742 roff_reset(struct roff *r)

{

roff_free1(r);

r->format = r->options & (MPARSE_MDOC | MPARSE_MAN);

r->control = 0;

}

Line 473 roff_alloc(struct mparse *parse, int options)

Line 762 roff_alloc(struct mparse *parse, int options)

r = mandoc_calloc(1, sizeof(struct roff));

r->parse = parse;

r->options = options;

r->format = options & (MPARSE_MDOC | MPARSE_MAN);

r->rstackpos = -1;

roffhash_init();

return(r);

return r;

}

/* --- syntax tree state data management ---------------------------------- */

static void

roff_man_free1(struct roff_man *man)

{

if (man->first != NULL)

roff_node_delete(man, man->first);

free(man->meta.msec);

free(man->meta.vol);

free(man->meta.os);

free(man->meta.arch);

free(man->meta.title);

free(man->meta.name);

free(man->meta.date);

}

static void

roff_man_alloc1(struct roff_man *man)

{

memset(&man->meta, 0, sizeof(man->meta));

man->first = mandoc_calloc(1, sizeof(*man->first));

man->first->type = ROFFT_ROOT;

man->last = man->first;

man->last_es = NULL;

man->flags = 0;

man->macroset = MACROSET_NONE;

man->lastsec = man->lastnamed = SEC_NONE;

man->next = ROFF_NEXT_CHILD;

}

void

roff_man_reset(struct roff_man *man)

{

roff_man_free1(man);

roff_man_alloc1(man);

}

void

roff_man_free(struct roff_man *man)

{

roff_man_free1(man);

free(man);

}

struct roff_man *

roff_man_alloc(struct roff *roff, struct mparse *parse,

const char *defos, int quick)

{

struct roff_man *man;

man = mandoc_calloc(1, sizeof(*man));

man->parse = parse;

man->roff = roff;

man->defos = defos;

man->quick = quick;

roff_man_alloc1(man);

return man;

}

/* --- syntax tree handling ----------------------------------------------- */

struct roff_node *

roff_node_alloc(struct roff_man *man, int line, int pos,

enum roff_type type, int tok)

{

struct roff_node *n;

n = mandoc_calloc(1, sizeof(*n));

n->line = line;

n->pos = pos;

n->tok = tok;

n->type = type;

n->sec = man->lastsec;

if (man->flags & MDOC_SYNOPSIS)

n->flags |= NODE_SYNPRETTY;

else

n->flags &= ~NODE_SYNPRETTY;

if (man->flags & MDOC_NEWLINE)

n->flags |= NODE_LINE;

man->flags &= ~MDOC_NEWLINE;

return n;

}

void

roff_node_append(struct roff_man *man, struct roff_node *n)

{

switch (man->next) {

case ROFF_NEXT_SIBLING:

if (man->last->next != NULL) {

n->next = man->last->next;

man->last->next->prev = n;

} else

man->last->parent->last = n;

man->last->next = n;

n->prev = man->last;

n->parent = man->last->parent;

break;

case ROFF_NEXT_CHILD:

if (man->last->child != NULL) {

n->next = man->last->child;

man->last->child->prev = n;

} else

man->last->last = n;

man->last->child = n;

n->parent = man->last;

break;

default:

abort();

}

man->last = n;

switch (n->type) {

case ROFFT_HEAD:

n->parent->head = n;

break;

case ROFFT_BODY:

if (n->end != ENDBODY_NOT)

return;

n->parent->body = n;

break;

case ROFFT_TAIL:

n->parent->tail = n;

break;

default:

return;

}

* Copy over the normalised-data pointer of our parent. Not

* everybody has one, but copying a null pointer is fine.

n->norm = n->parent->norm;

assert(n->parent->type == ROFFT_BLOCK);

}

void

roff_word_alloc(struct roff_man *man, int line, int pos, const char *word)

{

struct roff_node *n;

n = roff_node_alloc(man, line, pos, ROFFT_TEXT, TOKEN_NONE);

n->string = roff_strdup(man->roff, word);

roff_node_append(man, n);

n->flags |= NODE_VALID | NODE_ENDED;

man->next = ROFF_NEXT_SIBLING;

}

void

roff_word_append(struct roff_man *man, const char *word)

{

struct roff_node *n;

char *addstr, *newstr;

n = man->last;

addstr = roff_strdup(man->roff, word);

mandoc_asprintf(&newstr, "%s %s", n->string, addstr);

free(addstr);

free(n->string);

n->string = newstr;

man->next = ROFF_NEXT_SIBLING;

}

void

roff_elem_alloc(struct roff_man *man, int line, int pos, int tok)

{

struct roff_node *n;

n = roff_node_alloc(man, line, pos, ROFFT_ELEM, tok);

roff_node_append(man, n);

man->next = ROFF_NEXT_CHILD;

}

struct roff_node *

roff_block_alloc(struct roff_man *man, int line, int pos, int tok)

{

struct roff_node *n;

n = roff_node_alloc(man, line, pos, ROFFT_BLOCK, tok);

roff_node_append(man, n);

man->next = ROFF_NEXT_CHILD;

return n;

}

struct roff_node *

roff_head_alloc(struct roff_man *man, int line, int pos, int tok)

{

struct roff_node *n;

n = roff_node_alloc(man, line, pos, ROFFT_HEAD, tok);

roff_node_append(man, n);

man->next = ROFF_NEXT_CHILD;

return n;

}

struct roff_node *

roff_body_alloc(struct roff_man *man, int line, int pos, int tok)

{

struct roff_node *n;

n = roff_node_alloc(man, line, pos, ROFFT_BODY, tok);

roff_node_append(man, n);

man->next = ROFF_NEXT_CHILD;

return n;

}

void

roff_addeqn(struct roff_man *man, const struct eqn *eqn)

{

struct roff_node *n;

n = roff_node_alloc(man, eqn->ln, eqn->pos, ROFFT_EQN, TOKEN_NONE);

n->eqn = eqn;

if (eqn->ln > man->last->line)

n->flags |= NODE_LINE;

roff_node_append(man, n);

man->next = ROFF_NEXT_SIBLING;

}

void

roff_addtbl(struct roff_man *man, const struct tbl_span *tbl)

{

struct roff_node *n;

if (man->macroset == MACROSET_MAN)

man_breakscope(man, TOKEN_NONE);

n = roff_node_alloc(man, tbl->line, 0, ROFFT_TBL, TOKEN_NONE);

n->span = tbl;

roff_node_append(man, n);

n->flags |= NODE_VALID | NODE_ENDED;

man->next = ROFF_NEXT_SIBLING;

}

void

roff_node_unlink(struct roff_man *man, struct roff_node *n)

{

/* Adjust siblings. */

if (n->prev)

n->prev->next = n->next;

if (n->next)

n->next->prev = n->prev;

/* Adjust parent. */

if (n->parent != NULL) {

if (n->parent->child == n)

n->parent->child = n->next;

if (n->parent->last == n)

n->parent->last = n->prev;

}

/* Adjust parse point. */

if (man == NULL)

return;

if (man->last == n) {

if (n->prev == NULL) {

man->last = n->parent;

man->next = ROFF_NEXT_CHILD;

} else {

man->last = n->prev;

man->next = ROFF_NEXT_SIBLING;

}

if (man->first == n)

man->first = NULL;

}

void

roff_node_free(struct roff_node *n)

{

if (n->args != NULL)

mdoc_argv_free(n->args);

if (n->type == ROFFT_BLOCK || n->type == ROFFT_ELEM)

free(n->norm);

free(n->string);

free(n);

}

void

roff_node_delete(struct roff_man *man, struct roff_node *n)

{

while (n->child != NULL)

roff_node_delete(man, n->child);

roff_node_unlink(man, n);

roff_node_free(n);

}

void

deroff(char **dest, const struct roff_node *n)

{

char *cp;

size_t sz;

if (n->type != ROFFT_TEXT) {

for (n = n->child; n != NULL; n = n->next)

deroff(dest, n);

return;

}

/* Skip leading whitespace. */

for (cp = n->string; *cp != '\0'; cp++) {

if (cp[0] == '\\' && cp[1] != '\0' &&

strchr(" %&0^|~", cp[1]) != NULL)

cp++;

else if ( ! isspace((unsigned char)*cp))

break;

}

/* Skip trailing backslash. */

sz = strlen(cp);

if (sz > 0 && cp[sz - 1] == '\\')

sz--;

/* Skip trailing whitespace. */

for (; sz; sz--)

if ( ! isspace((unsigned char)cp[sz-1]))

break;

/* Skip empty strings. */

if (sz == 0)

return;

if (*dest == NULL) {

*dest = mandoc_strndup(cp, sz);

return;

}

mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);

free(*dest);

*dest = cp;

}

/* --- main functions of the roff parser ---------------------------------- */

* In the current line, expand escape sequences that tend to get

* used in numerical expressions and conditional requests.

* Also check the syntax of the remaining escape sequences.

static enum rofferr

roff_res(struct roff *r, char **bufp, size_t *szp, int ln, int pos)

roff_res(struct roff *r, struct buf *buf, int ln, int pos)

{

char ubuf[24]; /* buffer to print the number */

const char *start; /* start of the string to process */

Line 494 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1134 roff_res(struct roff *r, char **bufp, size_t *szp, int

const char *stnam; /* start of the name, after "[(*" */

const char *cp; /* end of the name, e.g. before ']' */

const char *res; /* the string to be substituted */

char *nbuf; /* new buffer to copy bufp to */

char *nbuf; /* new buffer to copy buf->buf to */

size_t maxl; /* expected length of the escape name */

size_t naml; /* actual length of the escape name */

enum mandoc_esc esc; /* type of the escape sequence */

int inaml; /* length returned from mandoc_escape() */

int expand_count; /* to avoid infinite loops */

int npos; /* position in numeric expression */

int irc; /* return code from roff_evalnum() */

int arg_complete; /* argument not interrupted by eol */

char term; /* character terminating the escape */

expand_count = 0;

start = *bufp + pos;

start = buf->buf + pos;

stesc = strchr(start, '\0') - 1;

while (stesc-- > start) {

/* Search backwards for the next backslash. */

if ('\\' != *stesc)

if (*stesc != '\\')

continue;

/* If it is escaped, skip it. */

for (cp = stesc - 1; cp >= start; cp--)

if ('\\' != *cp)

if (*cp != '\\')

break;

if (0 == (stesc - cp) % 2) {

if ((stesc - cp) % 2 == 0) {

stesc = (char *)cp;

continue;

}

Line 532 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1174 roff_res(struct roff *r, char **bufp, size_t *szp, int

res = NULL;

break;

case 'B':

/* FALLTHROUGH */

case 'w':

term = cp[1];

/* FALLTHROUGH */

Line 540 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1181 roff_res(struct roff *r, char **bufp, size_t *szp, int

res = ubuf;

break;

default:

if (ESCAPE_ERROR == mandoc_escape(&cp, NULL, NULL))

esc = mandoc_escape(&cp, &stnam, &inaml);

mandoc_msg(MANDOCERR_BADESCAPE, r->parse,

if (esc == ESCAPE_ERROR ||

ln, (int)(stesc - *bufp), NULL);

(esc == ESCAPE_SPECIAL &&

mchars_spec2cp(stnam, inaml) < 0))

mandoc_vmsg(MANDOCERR_ESC_BAD,

r->parse, ln, (int)(stesc - buf->buf),

"%.*s", (int)(cp - stesc), stesc);

continue;

}

if (EXPAND_LIMIT < ++expand_count) {

mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,

ln, (int)(stesc - *bufp), NULL);

ln, (int)(stesc - buf->buf), NULL);

return(ROFF_IGN);

return ROFF_IGN;

}

Line 558 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1203 roff_res(struct roff *r, char **bufp, size_t *szp, int

* Save a pointer to the name.

if ('\0' == term) {

if (term == '\0') {

switch (*++cp) {

case '\0':

maxl = 0;

Line 584 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1229 roff_res(struct roff *r, char **bufp, size_t *szp, int

/* Advance to the end of the name. */

for (naml = 0; 0 == maxl || naml < maxl; naml++, cp++) {

naml = 0;

if ('\0' == *cp) {

arg_complete = 1;

mandoc_msg(MANDOCERR_BADESCAPE, r->parse,

while (maxl == 0 || naml < maxl) {

ln, (int)(stesc - *bufp), NULL);

if (*cp == '\0') {

mandoc_msg(MANDOCERR_ESC_BAD, r->parse,

ln, (int)(stesc - buf->buf), stesc);

arg_complete = 0;

break;

}

if (0 == maxl && *cp == term) {

if (maxl == 0 && *cp == term) {

cp++;

break;

}

if (*cp++ != '\\' || stesc[1] != 'w') {

naml++;

continue;

}

switch (mandoc_escape(&cp, NULL, NULL)) {

case ESCAPE_SPECIAL:

case ESCAPE_UNICODE:

case ESCAPE_NUMBERED:

case ESCAPE_OVERSTRIKE:

naml++;

break;

default:

break;

}

Line 603 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1265 roff_res(struct roff *r, char **bufp, size_t *szp, int

switch (stesc[1]) {

case '*':

res = roff_getstrn(r, stnam, naml);

if (arg_complete)

res = roff_getstrn(r, stnam, naml);

break;

case 'B':

npos = 0;

irc = roff_evalnum(stnam, &npos, NULL, 0);

ubuf[0] = arg_complete &&

ubuf[0] = irc && stnam + npos + 1 == cp

roff_evalnum(r, ln, stnam, &npos,

? '1' : '0';

NULL, ROFFNUM_SCALE) &&

stnam + npos + 1 == cp ? '1' : '0';

ubuf[1] = '\0';

break;

case 'n':

(void)snprintf(ubuf, sizeof(ubuf), "%d",

if (arg_complete)

roff_getregn(r, stnam, naml));

(void)snprintf(ubuf, sizeof(ubuf), "%d",

roff_getregn(r, stnam, naml));

else

ubuf[0] = '\0';

break;

case 'w':

/* use even incomplete args */

(void)snprintf(ubuf, sizeof(ubuf), "%d",

24 * (int)naml);

break;

}

if (NULL == res) {

if (res == NULL) {

mandoc_msg(MANDOCERR_BADESCAPE, r->parse,

mandoc_vmsg(MANDOCERR_STR_UNDEF,

ln, (int)(stesc - *bufp), NULL);

r->parse, ln, (int)(stesc - buf->buf),

"%.*s", (int)naml, stnam);

res = "";

} else if (buf->sz + strlen(res) > SHRT_MAX) {

mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,

ln, (int)(stesc - buf->buf), NULL);

return ROFF_IGN;

}

/* Replace the escape sequence by the string. */

*stesc = '\0';

*szp = mandoc_asprintf(&nbuf, "%s%s%s",

buf->sz = mandoc_asprintf(&nbuf, "%s%s%s",

*bufp, res, cp) + 1;

buf->buf, res, cp) + 1;

/* Prepare for the next replacement. */

start = nbuf + pos;

stesc = nbuf + (stesc - *bufp) + strlen(res);

stesc = nbuf + (stesc - buf->buf) + strlen(res);

free(*bufp);

free(buf->buf);

*bufp = nbuf;

buf->buf = nbuf;

}

return(ROFF_CONT);

return ROFF_CONT;

}

* Process text streams:

* Process text streams.

* Convert all breakable hyphens into ASCII_HYPH.

* Decrement and spring input line trap.

static enum rofferr

roff_parsetext(char **bufp, size_t *szp, int pos, int *offs)

roff_parsetext(struct buf *buf, int pos, int *offs)

{

size_t sz;

const char *start;

Line 658 roff_parsetext(char **bufp, size_t *szp, int pos, int

Line 1329 roff_parsetext(char **bufp, size_t *szp, int pos, int

int isz;

enum mandoc_esc esc;

start = p = *bufp + pos;

/* Spring the input line trap. */

while ('\0' != *p) {

if (roffit_lines == 1) {

isz = mandoc_asprintf(&p, "%s\n.%s", buf->buf, roffit_macro);

free(buf->buf);

buf->buf = p;

buf->sz = isz + 1;

*offs = 0;

free(roffit_macro);

roffit_lines = 0;

return ROFF_REPARSE;

} else if (roffit_lines > 1)

--roffit_lines;

/* Convert all breakable hyphens into ASCII_HYPH. */

start = p = buf->buf + pos;

while (*p != '\0') {

sz = strcspn(p, "-\\");

p += sz;

if ('\0' == *p)

if (*p == '\0')

break;

if ('\\' == *p) {

if (*p == '\\') {

/* Skip over escapes. */

p++;

esc = mandoc_escape((const char **)&p, NULL, NULL);

if (ESCAPE_ERROR == esc)

if (esc == ESCAPE_ERROR)

break;

while (*p == '-')

p++;

continue;

} else if (p == start) {

p++;

Line 684 roff_parsetext(char **bufp, size_t *szp, int pos, int

Line 1373 roff_parsetext(char **bufp, size_t *szp, int pos, int

*p = ASCII_HYPH;

p++;

}

return ROFF_CONT;

/* Spring the input line trap. */

if (1 == roffit_lines) {

isz = mandoc_asprintf(&p, "%s\n.%s", *bufp, roffit_macro);

free(*bufp);

*bufp = p;

*szp = isz + 1;

*offs = 0;

free(roffit_macro);

roffit_lines = 0;

return(ROFF_REPARSE);

} else if (1 < roffit_lines)

--roffit_lines;

return(ROFF_CONT);

}

enum rofferr

roff_parseln(struct roff *r, int ln, char **bufp,

roff_parseln(struct roff *r, int ln, struct buf *buf, int *offs)

size_t *szp, int pos, int *offs)

{

enum rofft t;

enum roff_tok t;

enum rofferr e;

int ppos, ctl;

int pos; /* parse point */

int spos; /* saved parse point for messages */

int ppos; /* original offset in buf->buf */

int ctl; /* macro line (boolean) */

ppos = pos = *offs;

* Run the reserved-word filter only if we have some reserved

* words to fill in.

e = roff_res(r, bufp, szp, ln, pos);

/* Handle in-line equation delimiters. */

if (ROFF_IGN == e)

return(e);

assert(ROFF_CONT == e);

ppos = pos;

if (r->tbl == NULL &&

ctl = roff_getcontrol(r, *bufp, &pos);

r->last_eqn != NULL && r->last_eqn->delim &&

(r->eqn == NULL || r->eqn_inline)) {

e = roff_eqndelim(r, buf, pos);

if (e == ROFF_REPARSE)

return e;

assert(e == ROFF_CONT);

}

/* Expand some escape sequences. */

e = roff_res(r, buf, ln, pos);

if (e == ROFF_IGN)

return e;

assert(e == ROFF_CONT);

ctl = roff_getcontrol(r, buf->buf, &pos);

* First, if a scope is open and we're not a macro, pass the

* text through the macro's filter. If a scope isn't open and

* text through the macro's filter.

* we're not a macro, just let it through.

* Equations process all content themselves.

* Finally, if there's an equation scope open, divert it into it

* Tables process almost all content themselves, but we want

* no matter our state.

* to warn about macros before passing it there.

if (r->last && ! ctl) {

if (r->last != NULL && ! ctl) {

t = r->last->tok;

assert(roffs[t].text);

e = (*roffs[t].text)(r, t, buf, ln, pos, pos, offs);

e = (*roffs[t].text)(r, t, bufp, szp, ln, pos, pos, offs);

if (e == ROFF_IGN)

assert(ROFF_IGN == e || ROFF_CONT == e);

return e;

if (ROFF_CONT != e)

assert(e == ROFF_CONT);

return(e);

}

if (r->eqn)

if (r->eqn != NULL)

return(eqn_read(&r->eqn, ln, *bufp, ppos, offs));

return eqn_read(&r->eqn, ln, buf->buf, ppos, offs);

if ( ! ctl) {

if (r->tbl != NULL && ( ! ctl || buf->buf[pos] == '\0'))

if (r->tbl)

return tbl_read(r->tbl, ln, buf->buf, ppos);

return(tbl_read(r->tbl, ln, *bufp, pos));

if ( ! ctl)

return(roff_parsetext(bufp, szp, pos, offs));

return roff_parsetext(buf, pos, offs);

}

/* Skip empty request lines. */

if (buf->buf[pos] == '"') {

mandoc_msg(MANDOCERR_COMMENT_BAD, r->parse,

ln, pos, NULL);

return ROFF_IGN;

} else if (buf->buf[pos] == '\0')

return ROFF_IGN;

* If a scope is open, go to the child handler for that macro,

* as it may want to preprocess before doing anything with it.

Line 753 roff_parseln(struct roff *r, int ln, char **bufp,

Line 1447 roff_parseln(struct roff *r, int ln, char **bufp,

if (r->last) {

t = r->last->tok;

assert(roffs[t].sub);

return (*roffs[t].sub)(r, t, buf, ln, ppos, pos, offs);

return((*roffs[t].sub)(r, t, bufp, szp,

ln, ppos, pos, offs));

}

/* No scope is open. This is a new request or macro. */

spos = pos;

t = roff_parse(r, buf->buf, &pos, ln, ppos);

/* Tables ignore most macros. */

if (r->tbl != NULL && (t == TOKEN_NONE || t == ROFF_TS)) {

mandoc_msg(MANDOCERR_TBLMACRO, r->parse,

ln, pos, buf->buf + spos);

if (t == ROFF_TS)

return ROFF_IGN;

while (buf->buf[pos] != '\0' && buf->buf[pos] != ' ')

pos++;

while (buf->buf[pos] == ' ')

pos++;

return tbl_read(r->tbl, ln, buf->buf, pos);

}

* Lastly, as we've no scope open, try to look up and execute

* This is neither a roff request nor a user-defined macro.

* the new macro. If no macro is found, simply return and let

* Let the standard macro set parsers handle it.

* the compilers handle it.

if (ROFF_MAX == (t = roff_parse(r, *bufp, &pos)))

if (t == TOKEN_NONE)

return(ROFF_CONT);

return ROFF_CONT;

assert(roffs[t].proc);

/* Execute a roff request or a user defined macro. */

return((*roffs[t].proc)(r, t, bufp, szp, ln, ppos, pos, offs));

return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs);

}

void

Line 776 roff_endparse(struct roff *r)

Line 1487 roff_endparse(struct roff *r)

{

if (r->last)

mandoc_msg(MANDOCERR_SCOPEEXIT, r->parse,

mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,

r->last->line, r->last->col, NULL);

r->last->line, r->last->col,

roffs[r->last->tok].name);

if (r->eqn) {

mandoc_msg(MANDOCERR_SCOPEEXIT, r->parse,

mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,

r->eqn->eqn.ln, r->eqn->eqn.pos, NULL);

r->eqn->eqn.ln, r->eqn->eqn.pos, "EQ");

eqn_end(&r->eqn);

}

if (r->tbl) {

mandoc_msg(MANDOCERR_SCOPEEXIT, r->parse,

mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,

r->tbl->line, r->tbl->pos, NULL);

r->tbl->line, r->tbl->pos, "TS");

tbl_end(&r->tbl);

}

Line 796 roff_endparse(struct roff *r)

Line 1508 roff_endparse(struct roff *r)

* Parse a roff node's type from the input buffer. This must be in the

* form of ".foo xxx" in the usual way.

static enum rofft

static enum roff_tok

roff_parse(struct roff *r, const char *buf, int *pos)

roff_parse(struct roff *r, char *buf, int *pos, int ln, int ppos)

{

char *cp;

const char *mac;

size_t maclen;

enum rofft t;

enum roff_tok t;

if ('\0' == buf[*pos] || '"' == buf[*pos] ||

cp = buf + *pos;

'\t' == buf[*pos] || ' ' == buf[*pos])

return(ROFF_MAX);

/* We stop the macro parse at an escape, tab, space, or nil. */

if ('\0' == *cp || '"' == *cp || '\t' == *cp || ' ' == *cp)

return TOKEN_NONE;

mac = buf + *pos;

mac = cp;

maclen = strcspn(mac, " \\\t\0");

maclen = roff_getname(r, &cp, ln, ppos);

t = (r->current_string = roff_getstrn(r, mac, maclen))

? ROFF_USERDEF : roffhash_find(mac, maclen);

*pos += (int)maclen;

if (t != TOKEN_NONE)

*pos = cp - buf;

while (buf[*pos] && ' ' == buf[*pos])

return t;

(*pos)++;

return(t);

}

/* --- handling of request blocks ----------------------------------------- */

static enum rofferr

roff_cblock(ROFF_ARGS)

{

Line 832 roff_cblock(ROFF_ARGS)

Line 1544 roff_cblock(ROFF_ARGS)

* ignore macro, otherwise raise a warning and just ignore it.

if (NULL == r->last) {

if (r->last == NULL) {

mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,

return(ROFF_IGN);

ln, ppos, "..");

return ROFF_IGN;

}

switch (r->last->tok) {

case ROFF_am:

/* FALLTHROUGH */

/* ROFF_am1 is remapped to ROFF_am in roff_block(). */

case ROFF_ami:

/* FALLTHROUGH */

case ROFF_am1:

/* FALLTHROUGH */

case ROFF_de:

/* ROFF_de1 is remapped to ROFF_de in roff_block(). */

/* FALLTHROUGH */

case ROFF_dei:

/* FALLTHROUGH */

case ROFF_ig:

break;

default:

mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,

return(ROFF_IGN);

ln, ppos, "..");

return ROFF_IGN;

}

if ((*bufp)[pos])

if (buf->buf[pos] != '\0')

mandoc_msg(MANDOCERR_ARGSLOST, r->parse, ln, pos, NULL);

mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,

".. %s", buf->buf + pos);

roffnode_pop(r);

roffnode_cleanscope(r);

return(ROFF_IGN);

return ROFF_IGN;

}

Line 881 roff_ccond(struct roff *r, int ln, int ppos)

Line 1591 roff_ccond(struct roff *r, int ln, int ppos)

{

if (NULL == r->last) {

mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,

ln, ppos, "\\}");

return;

}

switch (r->last->tok) {

case ROFF_el:

/* FALLTHROUGH */

case ROFF_ie:

/* FALLTHROUGH */

case ROFF_if:

break;

default:

mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,

ln, ppos, "\\}");

return;

}

if (r->last->endspan > -1) {

mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,

ln, ppos, "\\}");

return;

}

Line 910 roff_ccond(struct roff *r, int ln, int ppos)

Line 1621 roff_ccond(struct roff *r, int ln, int ppos)

static enum rofferr

roff_block(ROFF_ARGS)

{

int sv;

const char *name;

size_t sz;

char *iname, *cp;

char *name;

size_t namesz;

name = NULL;

/* Ignore groff compatibility mode for now. */

if (ROFF_ig != tok) {

if (tok == ROFF_de1)

if ('\0' == (*bufp)[pos]) {

tok = ROFF_de;

mandoc_msg(MANDOCERR_NOARGS, r->parse, ln, ppos, NULL);

else if (tok == ROFF_dei1)

return(ROFF_IGN);

tok = ROFF_dei;

}

else if (tok == ROFF_am1)

tok = ROFF_am;

else if (tok == ROFF_ami1)

tok = ROFF_ami;

/* Parse the macro name argument. */

* Re-write `de1', since we don't really care about

* groff's strange compatibility mode, into `de'.

if (ROFF_de1 == tok)

cp = buf->buf + pos;

tok = ROFF_de;

if (tok == ROFF_ig) {

if (ROFF_de == tok)

iname = NULL;

name = *bufp + pos;

namesz = 0;

else

} else {

mandoc_msg(MANDOCERR_REQUEST, r->parse, ln, ppos,

iname = cp;

roffs[tok].name);

namesz = roff_getname(r, &cp, ln, ppos);

iname[namesz] = '\0';

}

while ((*bufp)[pos] && ! isspace((unsigned char)(*bufp)[pos]))

/* Resolve the macro name argument if it is indirect. */

pos++;

while (isspace((unsigned char)(*bufp)[pos]))

if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) {

(*bufp)[pos++] = '\0';

if ((name = roff_getstrn(r, iname, namesz)) == NULL) {

mandoc_vmsg(MANDOCERR_STR_UNDEF,

r->parse, ln, (int)(iname - buf->buf),

"%.*s", (int)namesz, iname);

namesz = 0;

} else

namesz = strlen(name);

} else

name = iname;

if (namesz == 0 && tok != ROFF_ig) {

mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse,

ln, ppos, roffs[tok].name);

return ROFF_IGN;

}

roffnode_push(r, tok, name, ln, ppos);

Line 950 roff_block(ROFF_ARGS)

Line 1675 roff_block(ROFF_ARGS)

* appended from roff_block_text() in multiline mode.

if (ROFF_de == tok)

if (tok == ROFF_de || tok == ROFF_dei)

roff_setstr(r, name, "", 0);

roff_setstrn(&r->strtab, name, namesz, "", 0, 0);

if ('\0' == (*bufp)[pos])

if (*cp == '\0')

return(ROFF_IGN);

return ROFF_IGN;

/* If present, process the custom end-of-line marker. */

/* Get the custom end marker. */

sv = pos;

iname = cp;

while ((*bufp)[pos] && ! isspace((unsigned char)(*bufp)[pos]))

namesz = roff_getname(r, &cp, ln, ppos);

pos++;

/* Resolve the end marker if it is indirect. */

* Note: groff does NOT like escape characters in the input.

* Instead of detecting this, we're just going to let it fly and

* to hell with it.

assert(pos > sv);

if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) {

sz = (size_t)(pos - sv);

if ((name = roff_getstrn(r, iname, namesz)) == NULL) {

mandoc_vmsg(MANDOCERR_STR_UNDEF,

r->parse, ln, (int)(iname - buf->buf),

"%.*s", (int)namesz, iname);

namesz = 0;

} else

namesz = strlen(name);

} else

name = iname;

if (1 == sz && '.' == (*bufp)[sv])

if (namesz)

return(ROFF_IGN);

r->last->end = mandoc_strndup(name, namesz);

r->last->end = mandoc_malloc(sz + 1);

if (*cp != '\0')

mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse,

ln, pos, ".%s ... %s", roffs[tok].name, cp);

memcpy(r->last->end, *bufp + sv, sz);

return ROFF_IGN;

r->last->end[(int)sz] = '\0';

if ((*bufp)[pos])

mandoc_msg(MANDOCERR_ARGSLOST, r->parse, ln, pos, NULL);

return(ROFF_IGN);

}

static enum rofferr

roff_block_sub(ROFF_ARGS)

{

enum rofft t;

enum roff_tok t;

int i, j;

Line 1002 roff_block_sub(ROFF_ARGS)

Line 1726 roff_block_sub(ROFF_ARGS)

if (r->last->end) {

for (i = pos, j = 0; r->last->end[j]; j++, i++)

if ((*bufp)[i] != r->last->end[j])

if (buf->buf[i] != r->last->end[j])

break;

if ('\0' == r->last->end[j] &&

if (r->last->end[j] == '\0' &&

('\0' == (*bufp)[i] ||

(buf->buf[i] == '\0' ||

' ' == (*bufp)[i] ||

buf->buf[i] == ' ' ||

'\t' == (*bufp)[i])) {

buf->buf[i] == '\t')) {

roffnode_pop(r);

roffnode_cleanscope(r);

while (' ' == (*bufp)[i] || '\t' == (*bufp)[i])

while (buf->buf[i] == ' ' || buf->buf[i] == '\t')

i++;

pos = i;

if (ROFF_MAX != roff_parse(r, *bufp, &pos))

if (roff_parse(r, buf->buf, &pos, ln, ppos) !=

return(ROFF_RERUN);

TOKEN_NONE)

return(ROFF_IGN);

return ROFF_RERUN;

return ROFF_IGN;

}

Line 1027 roff_block_sub(ROFF_ARGS)

Line 1752 roff_block_sub(ROFF_ARGS)

* pulling it out of the hashtable.

t = roff_parse(r, *bufp, &pos);

t = roff_parse(r, buf->buf, &pos, ln, ppos);

if (t != ROFF_cblock) {

* Macros other than block-end are only significant

if (tok != ROFF_ig)

* in `de' blocks; elsewhere, simply throw them away.

roff_setstr(r, r->last->name, buf->buf + ppos, 2);

return ROFF_IGN;

if (ROFF_cblock != t) {

if (ROFF_de == tok)

roff_setstr(r, r->last->name, *bufp + ppos, 2);

return(ROFF_IGN);

}

assert(roffs[t].proc);

return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs);

return((*roffs[t].proc)(r, t, bufp, szp, ln, ppos, pos, offs));

}

static enum rofferr

roff_block_text(ROFF_ARGS)

{

if (ROFF_de == tok)

if (tok != ROFF_ig)

roff_setstr(r, r->last->name, *bufp + pos, 2);

roff_setstr(r, r->last->name, buf->buf + pos, 2);

return(ROFF_IGN);

return ROFF_IGN;

}

static enum rofferr

roff_cond_sub(ROFF_ARGS)

{

enum rofft t;

enum roff_tok t;

char *ep;

int rr;

rr = r->last->rule;

roffnode_cleanscope(r);

t = roff_parse(r, *bufp, &pos);

t = roff_parse(r, buf->buf, &pos, ln, ppos);

* Fully handle known macros when they are structurally

* required or when the conditional evaluated to true.

if ((ROFF_MAX != t) &&

if (t != TOKEN_NONE && (rr || roffs[t].flags & ROFFMAC_STRUCT))

(rr || ROFFMAC_STRUCT & roffs[t].flags)) {

return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs);

assert(roffs[t].proc);

return((*roffs[t].proc)(r, t, bufp, szp,

ln, ppos, pos, offs));

}

* If `\}' occurs on a macro line without a preceding macro,

* drop the line completely.

ep = *bufp + pos;

ep = buf->buf + pos;

if ('\\' == ep[0] && '}' == ep[1])

if (ep[0] == '\\' && ep[1] == '}')

rr = 0;

/* Always check for the closing delimiter `\}'. */

while (NULL != (ep = strchr(ep, '\\'))) {

while ((ep = strchr(ep, '\\')) != NULL) {

if ('}' == *(++ep)) {

if (*(++ep) == '}') {

*ep = '&';

roff_ccond(r, ln, ep - *bufp - 1);

roff_ccond(r, ln, ep - buf->buf - 1);

}

++ep;

if (*ep != '\0')

++ep;

}

return(rr ? ROFF_CONT : ROFF_IGN);

return rr ? ROFF_CONT : ROFF_IGN;

}

static enum rofferr

Line 1106 roff_cond_text(ROFF_ARGS)

Line 1823 roff_cond_text(ROFF_ARGS)

rr = r->last->rule;

roffnode_cleanscope(r);

ep = *bufp + pos;

ep = buf->buf + pos;

while (NULL != (ep = strchr(ep, '\\'))) {

while ((ep = strchr(ep, '\\')) != NULL) {

if ('}' == *(++ep)) {

if (*(++ep) == '}') {

*ep = '&';

roff_ccond(r, ln, ep - *bufp - 1);

roff_ccond(r, ln, ep - buf->buf - 1);

}

++ep;

if (*ep != '\0')

++ep;

}

return(rr ? ROFF_CONT : ROFF_IGN);

return rr ? ROFF_CONT : ROFF_IGN;

}

/* --- handling of numeric and conditional expressions -------------------- */

* Parse a single signed integer number. Stop at the first non-digit.

* If there is at least one digit, return success and advance the

Line 1124 roff_cond_text(ROFF_ARGS)

Line 1844 roff_cond_text(ROFF_ARGS)

* Ignore overflows, treat them just like the C language.

static int

roff_getnum(const char *v, int *pos, int *res)

roff_getnum(const char *v, int *pos, int *res, int flags)

{

int myres, n, p;

int myres, scaled, n, p;

if (NULL == res)

res = &myres;

p = *pos;

n = v[p] == '-';

if (n)

if (n || v[p] == '+')

p++;

if (flags & ROFFNUM_WHITE)

while (isspace((unsigned char)v[p]))

p++;

for (*res = 0; isdigit((unsigned char)v[p]); p++)

*res = 10 * *res + v[p] - '0';

if (p == *pos + n)

Line 1144 roff_getnum(const char *v, int *pos, int *res)

Line 1868 roff_getnum(const char *v, int *pos, int *res)

if (n)

*res = -*res;

*pos = p;

/* Each number may be followed by one optional scaling unit. */

switch (v[p]) {

case 'f':

scaled = *res * 65536;

break;

case 'i':

scaled = *res * 240;

break;

case 'c':

scaled = *res * 240 / 2.54;

break;

case 'v':

case 'P':

scaled = *res * 40;

break;

case 'm':

case 'n':

scaled = *res * 24;

break;

case 'p':

scaled = *res * 10 / 3;

break;

case 'u':

scaled = *res;

break;

case 'M':

scaled = *res * 6 / 25;

break;

default:

scaled = *res;

p--;

break;

}

if (flags & ROFFNUM_SCALE)

*res = scaled;

*pos = p + 1;

return 1;

}

Line 1185 roff_evalstrcond(const char *v, int *pos)

Line 1946 roff_evalstrcond(const char *v, int *pos)

out:

if (NULL == s3)

s3 = strchr(s2, '\0');

else

else if (*s3 != '\0')

s3++;

*pos = s3 - v;

return(match);

return match;

}

Line 1196 out:

Line 1957 out:

* or string condition.

static int

roff_evalcond(const char *v, int *pos)

roff_evalcond(struct roff *r, int ln, char *v, int *pos)

{

int wanttrue, number;

char *cp, *name;

size_t sz;

int number, savepos, wanttrue;

if ('!' == v[*pos]) {

wanttrue = 0;

Line 1207 roff_evalcond(const char *v, int *pos)

Line 1970 roff_evalcond(const char *v, int *pos)

wanttrue = 1;

switch (v[*pos]) {

case '\0':

return 0;

case 'n':

/* FALLTHROUGH */

case 'o':

(*pos)++;

return(wanttrue);

return wanttrue;

case 'c':

/* FALLTHROUGH */

case 'd':

/* FALLTHROUGH */

case 'e':

/* FALLTHROUGH */

case 'r':

/* FALLTHROUGH */

case 't':

case 'v':

(*pos)++;

return(!wanttrue);

return !wanttrue;

case 'r':

cp = name = v + ++*pos;

sz = roff_getname(r, &cp, ln, *pos);

*pos = cp - v;

return (sz && roff_hasregn(r, name, sz)) == wanttrue;

default:

break;

}

if (roff_evalnum(v, pos, &number, 0))

savepos = *pos;

return((number > 0) == wanttrue);

if (roff_evalnum(r, ln, v, pos, &number, ROFFNUM_SCALE))

return (number > 0) == wanttrue;

else if (*pos == savepos)

return roff_evalstrcond(v, pos) == wanttrue;

else

return(roff_evalstrcond(v, pos) == wanttrue);

return 0;

}

static enum rofferr

roff_line_ignore(ROFF_ARGS)

{

return(ROFF_IGN);

return ROFF_IGN;

}

static enum rofferr

roff_insec(ROFF_ARGS)

{

mandoc_msg(MANDOCERR_REQ_INSEC, r->parse,

ln, ppos, roffs[tok].name);

return ROFF_IGN;

}

static enum rofferr

roff_unsupp(ROFF_ARGS)

{

mandoc_msg(MANDOCERR_REQ_UNSUPP, r->parse,

ln, ppos, roffs[tok].name);

return ROFF_IGN;

}

static enum rofferr

roff_cond(ROFF_ARGS)

{

Line 1254 roff_cond(ROFF_ARGS)

Line 2040 roff_cond(ROFF_ARGS)

* If we're not an `el', however, then evaluate the conditional.

r->last->rule = ROFF_el == tok ?

r->last->rule = tok == ROFF_el ?

(r->rstackpos < 0 ? 0 : r->rstack[r->rstackpos--]) :

roff_evalcond(*bufp, &pos);

roff_evalcond(r, ln, buf->buf, &pos);

* An if-else will put the NEGATION of the current evaluated

* conditional into the stack of rules.

if (ROFF_ie == tok) {

if (tok == ROFF_ie) {

if (r->rstackpos == RSTACK_MAX - 1) {

if (r->rstackpos + 1 == r->rstacksz) {

mandoc_msg(MANDOCERR_MEM,

r->rstacksz += 16;

r->parse, ln, ppos, NULL);

r->rstack = mandoc_reallocarray(r->rstack,

return(ROFF_ERR);

r->rstacksz, sizeof(int));

}

r->rstack[++r->rstackpos] = !r->last->rule;

}

Line 1283 roff_cond(ROFF_ARGS)

Line 2069 roff_cond(ROFF_ARGS)

* not even whitespace, use next-line scope.

if ('\0' == (*bufp)[pos]) {

if (buf->buf[pos] == '\0') {

r->last->endspan = 2;

goto out;

}

while (' ' == (*bufp)[pos])

while (buf->buf[pos] == ' ')

pos++;

/* An opening brace requests multiline scope. */

if ('\\' == (*bufp)[pos] && '{' == (*bufp)[pos + 1]) {

if (buf->buf[pos] == '\\' && buf->buf[pos + 1] == '{') {

r->last->endspan = -1;

pos += 2;

while (buf->buf[pos] == ' ')

pos++;

goto out;

}

Line 1305 roff_cond(ROFF_ARGS)

Line 2093 roff_cond(ROFF_ARGS)

* nothing but trailing whitespace.

if ('\0' == (*bufp)[pos])

if (buf->buf[pos] == '\0')

mandoc_msg(MANDOCERR_NOARGS, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_COND_EMPTY, r->parse,

ln, ppos, roffs[tok].name);

r->last->endspan = 1;

out:

*offs = pos;

return(ROFF_RERUN);

return ROFF_RERUN;

}

static enum rofferr

roff_ds(ROFF_ARGS)

{

char *name, *string;

char *string;

const char *name;

size_t namesz;

/* Ignore groff compatibility mode for now. */

if (tok == ROFF_ds1)

tok = ROFF_ds;

else if (tok == ROFF_as1)

tok = ROFF_as;

* A symbol is named by the first word following the macro

* The first word is the name of the string.

* invocation up to a space. Its value is anything after the

* If it is empty or terminated by an escape sequence,

* name's trailing whitespace and optional double-quote. Thus,

* abort the `ds' request without defining anything.

* [.ds foo "bar " ]

* will have `bar " ' as its value.

string = *bufp + pos;

name = string = buf->buf + pos;

name = roff_getname(r, &string, ln, pos);

if (*name == '\0')

if ('\0' == *name)

return ROFF_IGN;

return(ROFF_IGN);

/* Read past initial double-quote. */

namesz = roff_getname(r, &string, ln, pos);

if ('"' == *string)

if (name[namesz] == '\\')

return ROFF_IGN;

/* Read past the initial double-quote, if any. */

if (*string == '"')

string++;

/* The rest is the value. */

roff_setstr(r, name, string, ROFF_as == tok);

roff_setstrn(&r->strtab, name, namesz, string, strlen(string),

return(ROFF_IGN);

ROFF_as == tok);

return ROFF_IGN;

}

Line 1357 roff_getop(const char *v, int *pos, char *res)

Line 2155 roff_getop(const char *v, int *pos, char *res)

switch (*res) {

case '+':

/* FALLTHROUGH */

case '-':

/* FALLTHROUGH */

case '*':

/* FALLTHROUGH */

case '/':

/* FALLTHROUGH */

case '%':

/* FALLTHROUGH */

case '&':

/* FALLTHROUGH */

case ':':

break;

case '<':

Line 1407 roff_getop(const char *v, int *pos, char *res)

Line 2199 roff_getop(const char *v, int *pos, char *res)

(*pos)++;

break;

default:

return(0);

return 0;

}

(*pos)++;

return(*res);

return *res;

}

Line 1419 roff_getop(const char *v, int *pos, char *res)

Line 2211 roff_getop(const char *v, int *pos, char *res)

* or a single signed integer number.

static int

roff_evalpar(const char *v, int *pos, int *res)

roff_evalpar(struct roff *r, int ln,

const char *v, int *pos, int *res, int flags)

{

if ('(' != v[*pos])

return(roff_getnum(v, pos, res));

return roff_getnum(v, pos, res, flags);

(*pos)++;

if ( ! roff_evalnum(v, pos, res, 1))

if ( ! roff_evalnum(r, ln, v, pos, res, flags | ROFFNUM_WHITE))

return(0);

return 0;

* Omission of the closing parenthesis

Line 1438 roff_evalpar(const char *v, int *pos, int *res)

Line 2231 roff_evalpar(const char *v, int *pos, int *res)

if (')' == v[*pos])

(*pos)++;

else if (NULL == res)

return(0);

return 0;

return(1);

return 1;

}

Line 1448 roff_evalpar(const char *v, int *pos, int *res)

Line 2241 roff_evalpar(const char *v, int *pos, int *res)

* Proceed left to right, there is no concept of precedence.

static int

roff_evalnum(const char *v, int *pos, int *res, int skipwhite)

roff_evalnum(struct roff *r, int ln, const char *v,

int *pos, int *res, int flags)

{

int mypos, operand2;

char operator;

Line 1458 roff_evalnum(const char *v, int *pos, int *res, int sk

Line 2252 roff_evalnum(const char *v, int *pos, int *res, int sk

pos = &mypos;

}

if (skipwhite)

if (flags & ROFFNUM_WHITE)

while (isspace((unsigned char)v[*pos]))

(*pos)++;

if ( ! roff_evalpar(v, pos, res))

if ( ! roff_evalpar(r, ln, v, pos, res, flags))

return(0);

return 0;

while (1) {

if (skipwhite)

if (flags & ROFFNUM_WHITE)

while (isspace((unsigned char)v[*pos]))

(*pos)++;

if ( ! roff_getop(v, pos, &operator))

break;

if (skipwhite)

if (flags & ROFFNUM_WHITE)

while (isspace((unsigned char)v[*pos]))

(*pos)++;

if ( ! roff_evalpar(v, pos, &operand2))

if ( ! roff_evalpar(r, ln, v, pos, &operand2, flags))

return(0);

return 0;

if (skipwhite)

if (flags & ROFFNUM_WHITE)

while (isspace((unsigned char)v[*pos]))

(*pos)++;

Line 1498 roff_evalnum(const char *v, int *pos, int *res, int sk

Line 2292 roff_evalnum(const char *v, int *pos, int *res, int sk

*res *= operand2;

break;

case '/':

if (operand2 == 0) {

mandoc_msg(MANDOCERR_DIVZERO,

r->parse, ln, *pos, v);

*res = 0;

break;

}

*res /= operand2;

break;

case '%':

if (operand2 == 0) {

mandoc_msg(MANDOCERR_DIVZERO,

r->parse, ln, *pos, v);

*res = 0;

break;

}

*res %= operand2;

break;

case '<':

Line 1539 roff_evalnum(const char *v, int *pos, int *res, int sk

Line 2345 roff_evalnum(const char *v, int *pos, int *res, int sk

abort();

}

return(1);

return 1;

}

/* --- register management ------------------------------------------------ */

void

roff_setreg(struct roff *r, const char *name, int val, char sign)

{

Line 1578 roff_setreg(struct roff *r, const char *name, int val,

Line 2386 roff_setreg(struct roff *r, const char *name, int val,

* were to turn up, another special value would have to be chosen.

static int

roff_getregro(const char *name)

roff_getregro(const struct roff *r, const char *name)

{

switch (*name) {

case '$': /* Number of arguments of the last macro evaluated. */

return r->argc;

case 'A': /* ASCII approximation mode is always off. */

return(0);

return 0;

case 'g': /* Groff compatibility mode is always on. */

return(1);

return 1;

case 'H': /* Fixed horizontal resolution. */

return (24);

return 24;

case 'j': /* Always adjust left margin only. */

return(0);

return 0;

case 'T': /* Some output device is always defined. */

return(1);

return 1;

case 'V': /* Fixed vertical resolution. */

return (40);

return 40;

default:

return (-1);

return -1;

}

Line 1606 roff_getreg(const struct roff *r, const char *name)

Line 2416 roff_getreg(const struct roff *r, const char *name)

int val;

if ('.' == name[0] && '\0' != name[1] && '\0' == name[2]) {

val = roff_getregro(name + 1);

val = roff_getregro(r, name + 1);

if (-1 != val)

return (val);

return val;

}

for (reg = r->regtab; reg; reg = reg->next)

if (0 == strcmp(name, reg->key.p))

return(reg->val);

return reg->val;

return(0);

return 0;

}

static int

Line 1625 roff_getregn(const struct roff *r, const char *name, s

Line 2435 roff_getregn(const struct roff *r, const char *name, s

int val;

if ('.' == name[0] && 2 == len) {

val = roff_getregro(name + 1);

val = roff_getregro(r, name + 1);

if (-1 != val)

return (val);

return val;

}

for (reg = r->regtab; reg; reg = reg->next)

if (len == reg->key.sz &&

0 == strncmp(name, reg->key.p, len))

return(reg->val);

return reg->val;

return(0);

return 0;

}

static int

roff_hasregn(const struct roff *r, const char *name, size_t len)

{

struct roffreg *reg;

int val;

if ('.' == name[0] && 2 == len) {

val = roff_getregro(r, name + 1);

if (-1 != val)

return 1;

}

for (reg = r->regtab; reg; reg = reg->next)

if (len == reg->key.sz &&

0 == strncmp(name, reg->key.p, len))

return 1;

return 0;

}

static void

roff_freereg(struct roffreg *reg)

{

Line 1654 roff_freereg(struct roffreg *reg)

Line 2484 roff_freereg(struct roffreg *reg)

static enum rofferr

roff_nr(ROFF_ARGS)

{

const char *key;

char *key, *val;

char *val;

size_t keysz;

int iv;

char sign;

val = *bufp + pos;

key = val = buf->buf + pos;

key = roff_getname(r, &val, ln, pos);

if (*key == '\0')

return ROFF_IGN;

keysz = roff_getname(r, &val, ln, pos);

if (key[keysz] == '\\')

return ROFF_IGN;

key[keysz] = '\0';

sign = *val;

if ('+' == sign || '-' == sign)

if (sign == '+' || sign == '-')

val++;

if (roff_evalnum(val, NULL, &iv, 0))

if (roff_evalnum(r, ln, val, NULL, &iv, ROFFNUM_SCALE))

roff_setreg(r, key, iv, sign);

return(ROFF_IGN);

return ROFF_IGN;

}

static enum rofferr

roff_rr(ROFF_ARGS)

{

struct roffreg *reg, **prev;

const char *name;

char *name, *cp;

char *cp;

size_t namesz;

cp = *bufp + pos;

name = cp = buf->buf + pos;

name = roff_getname(r, &cp, ln, pos);

if (*name == '\0')

return ROFF_IGN;

namesz = roff_getname(r, &cp, ln, pos);

name[namesz] = '\0';

prev = &r->regtab;

while (1) {

reg = *prev;

if (NULL == reg || !strcmp(name, reg->key.p))

if (reg == NULL || !strcmp(name, reg->key.p))

break;

prev = &reg->next;

}

if (NULL != reg) {

if (reg != NULL) {

*prev = reg->next;

free(reg->key.p);

free(reg);

}

return(ROFF_IGN);

return ROFF_IGN;

}

/* --- handler functions for roff requests -------------------------------- */

static enum rofferr

roff_rm(ROFF_ARGS)

{

const char *name;

char *cp;

size_t namesz;

cp = *bufp + pos;

cp = buf->buf + pos;

while ('\0' != *cp) {

while (*cp != '\0') {

name = roff_getname(r, &cp, ln, (int)(cp - *bufp));

name = cp;

if ('\0' != *name)

namesz = roff_getname(r, &cp, ln, (int)(cp - buf->buf));

roff_setstr(r, name, NULL, 0);

roff_setstrn(&r->strtab, name, namesz, NULL, 0, 0);

if (name[namesz] == '\\')

break;

}

return(ROFF_IGN);

return ROFF_IGN;

}

static enum rofferr

roff_it(ROFF_ARGS)

{

char *cp;

size_t len;

int iv;

/* Parse the number of lines. */

cp = *bufp + pos;

len = strcspn(cp, " \t");

if ( ! roff_evalnum(r, ln, buf->buf, &pos, &iv, 0)) {

cp[len] = '\0';

mandoc_msg(MANDOCERR_IT_NONUM, r->parse,

if ((iv = mandoc_strntoi(cp, len, 10)) <= 0) {

ln, ppos, buf->buf + 1);

mandoc_msg(MANDOCERR_NUMERIC, r->parse,

return ROFF_IGN;

ln, ppos, *bufp + 1);

return(ROFF_IGN);

}

cp += len + 1;

/* Arm the input line trap. */

while (isspace((unsigned char)buf->buf[pos]))

pos++;

* Arm the input line trap.

* Special-casing "an-trap" is an ugly workaround to cope

* with DocBook stupidly fiddling with man(7) internals.

roffit_lines = iv;

roffit_macro = mandoc_strdup(cp);

roffit_macro = mandoc_strdup(iv != 1 ||

return(ROFF_IGN);

strcmp(buf->buf + pos, "an-trap") ?

buf->buf + pos : "br");

return ROFF_IGN;

}

static enum rofferr

Line 1741 roff_Dd(ROFF_ARGS)

Line 2590 roff_Dd(ROFF_ARGS)

{

const char *const *cp;

if (0 == ((MPARSE_MDOC | MPARSE_QUICK) & r->options))

if ((r->options & (MPARSE_MDOC | MPARSE_QUICK)) == 0)

for (cp = __mdoc_reserved; *cp; cp++)

roff_setstr(r, *cp, NULL, 0);

return(ROFF_CONT);

if (r->format == 0)

r->format = MPARSE_MDOC;

return ROFF_CONT;

}

static enum rofferr

Line 1753 roff_TH(ROFF_ARGS)

Line 2605 roff_TH(ROFF_ARGS)

{

const char *const *cp;

if (0 == (MPARSE_QUICK & r->options))

if ((r->options & MPARSE_QUICK) == 0)

for (cp = __man_reserved; *cp; cp++)

roff_setstr(r, *cp, NULL, 0);

return(ROFF_CONT);

if (r->format == 0)

r->format = MPARSE_MAN;

return ROFF_CONT;

}

static enum rofferr

Line 1765 roff_TE(ROFF_ARGS)

Line 2620 roff_TE(ROFF_ARGS)

{

if (NULL == r->tbl)

mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,

else

ln, ppos, "TE");

tbl_end(&r->tbl);

else if ( ! tbl_end(&r->tbl)) {

free(buf->buf);

return(ROFF_IGN);

buf->buf = mandoc_strdup(".sp");

buf->sz = 4;

return ROFF_REPARSE;

}

return ROFF_IGN;

}

static enum rofferr

Line 1777 roff_T_(ROFF_ARGS)

Line 2636 roff_T_(ROFF_ARGS)

{

if (NULL == r->tbl)

mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,

ln, ppos, "T&");

else

tbl_restart(ppos, ln, r->tbl);

return(ROFF_IGN);

return ROFF_IGN;

}

#if 0

static int

* Handle in-line equation delimiters.

roff_closeeqn(struct roff *r)

static enum rofferr

roff_eqndelim(struct roff *r, struct buf *buf, int pos)

{

char *cp1, *cp2;

const char *bef_pr, *bef_nl, *mac, *aft_nl, *aft_pr;

return(r->eqn && ROFF_EQN == eqn_end(&r->eqn) ? 1 : 0);

}

* Outside equations, look for an opening delimiter.

#endif

* If we are inside an equation, we already know it is

* in-line, or this function wouldn't have been called;

* so look for a closing delimiter.

static void

cp1 = buf->buf + pos;

roff_openeqn(struct roff *r, const char *name, int line,

cp2 = strchr(cp1, r->eqn == NULL ?

int offs, const char *buf)

r->last_eqn->odelim : r->last_eqn->cdelim);

{

if (cp2 == NULL)

struct eqn_node *e;

return ROFF_CONT;

int poff;

assert(NULL == r->eqn);

*cp2++ = '\0';

e = eqn_alloc(name, offs, line, r->parse);

bef_pr = bef_nl = aft_nl = aft_pr = "";

if (r->last_eqn)

/* Handle preceding text, protecting whitespace. */

r->last_eqn->next = e;

else

r->first_eqn = r->last_eqn = e;

r->eqn = r->last_eqn = e;

if (*buf->buf != '\0') {

if (r->eqn == NULL)

bef_pr = "\\&";

bef_nl = "\n";

}

if (buf) {

poff = 0;

* Prepare replacing the delimiter with an equation macro

eqn_read(&r->eqn, line, buf, offs, &poff);

* and drop leading white space from the equation.

if (r->eqn == NULL) {

while (*cp2 == ' ')

cp2++;

mac = ".EQ";

} else

mac = ".EN";

/* Handle following text, protecting whitespace. */

if (*cp2 != '\0') {

aft_nl = "\n";

if (r->eqn != NULL)

aft_pr = "\\&";

}

/* Do the actual replacement. */

buf->sz = mandoc_asprintf(&cp1, "%s%s%s%s%s%s%s", buf->buf,

bef_pr, bef_nl, mac, aft_nl, aft_pr, cp2) + 1;

free(buf->buf);

buf->buf = cp1;

/* Toggle the in-line state of the eqn subsystem. */

r->eqn_inline = r->eqn == NULL;

return ROFF_REPARSE;

}

static enum rofferr

roff_EQ(ROFF_ARGS)

{

struct eqn_node *e;

roff_openeqn(r, *bufp + pos, ln, ppos, NULL);

assert(r->eqn == NULL);

return(ROFF_IGN);

e = eqn_alloc(ppos, ln, r->parse);

if (r->last_eqn) {

r->last_eqn->next = e;

e->delim = r->last_eqn->delim;

e->odelim = r->last_eqn->odelim;

e->cdelim = r->last_eqn->cdelim;

} else

r->first_eqn = r->last_eqn = e;

r->eqn = r->last_eqn = e;

if (buf->buf[pos] != '\0')

mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,

".EQ %s", buf->buf + pos);

return ROFF_IGN;

}

static enum rofferr

roff_EN(ROFF_ARGS)

{

mandoc_msg(MANDOCERR_NOSCOPE, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, ln, ppos, "EN");

return(ROFF_IGN);

return ROFF_IGN;

}

static enum rofferr

Line 1838 roff_TS(ROFF_ARGS)

Line 2749 roff_TS(ROFF_ARGS)

struct tbl_node *tbl;

if (r->tbl) {

mandoc_msg(MANDOCERR_SCOPEBROKEN, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_BLK_BROKEN, r->parse,

ln, ppos, "TS breaks TS");

tbl_end(&r->tbl);

}

Line 1850 roff_TS(ROFF_ARGS)

Line 2762 roff_TS(ROFF_ARGS)

r->first_tbl = r->last_tbl = tbl;

r->tbl = r->last_tbl = tbl;

return(ROFF_IGN);

return ROFF_IGN;

}

static enum rofferr

roff_brp(ROFF_ARGS)

{

buf->buf[pos - 1] = '\0';

return ROFF_CONT;

}

static enum rofferr

roff_cc(ROFF_ARGS)

{

const char *p;

p = *bufp + pos;

p = buf->buf + pos;

if ('\0' == *p || '.' == (r->control = *p++))

if (*p == '\0' || (r->control = *p++) == '.')

r->control = 0;

if ('\0' != *p)

if (*p != '\0')

mandoc_msg(MANDOCERR_ARGCOUNT, r->parse, ln, ppos, NULL);

mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse,

ln, p - buf->buf, "cc ... %s", p);

return(ROFF_IGN);

return ROFF_IGN;

}

static enum rofferr

Line 1876 roff_tr(ROFF_ARGS)

Line 2797 roff_tr(ROFF_ARGS)

size_t fsz, ssz;

enum mandoc_esc esc;

p = *bufp + pos;

p = buf->buf + pos;

if ('\0' == *p) {

if (*p == '\0') {

mandoc_msg(MANDOCERR_ARGCOUNT, r->parse, ln, ppos, NULL);

mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse, ln, ppos, "tr");

return(ROFF_IGN);

return ROFF_IGN;

}

while ('\0' != *p) {

while (*p != '\0') {

fsz = ssz = 1;

first = p++;

if ('\\' == *first) {

if (*first == '\\') {

esc = mandoc_escape(&p, NULL, NULL);

if (ESCAPE_ERROR == esc) {

if (esc == ESCAPE_ERROR) {

mandoc_msg(MANDOCERR_BADESCAPE,

mandoc_msg(MANDOCERR_ESC_BAD, r->parse,

r->parse, ln,

ln, (int)(p - buf->buf), first);

(int)(p - *bufp), NULL);

return ROFF_IGN;

return(ROFF_IGN);

}

fsz = (size_t)(p - first);

}

second = p++;

if ('\\' == *second) {

if (*second == '\\') {

esc = mandoc_escape(&p, NULL, NULL);

if (ESCAPE_ERROR == esc) {

if (esc == ESCAPE_ERROR) {

mandoc_msg(MANDOCERR_BADESCAPE,

mandoc_msg(MANDOCERR_ESC_BAD, r->parse,

r->parse, ln,

ln, (int)(p - buf->buf), second);

(int)(p - *bufp), NULL);

return ROFF_IGN;

return(ROFF_IGN);

}

ssz = (size_t)(p - second);

} else if ('\0' == *second) {

} else if (*second == '\0') {

mandoc_msg(MANDOCERR_ARGCOUNT, r->parse,

mandoc_vmsg(MANDOCERR_TR_ODD, r->parse,

ln, (int)(p - *bufp), NULL);

ln, first - buf->buf, "tr %s", first);

second = " ";

p--;

}

Line 1921 roff_tr(ROFF_ARGS)

Line 2840 roff_tr(ROFF_ARGS)

continue;

}

if (NULL == r->xtab)

if (r->xtab == NULL)

r->xtab = mandoc_calloc(128,

sizeof(struct roffstr));

Line 1930 roff_tr(ROFF_ARGS)

Line 2849 roff_tr(ROFF_ARGS)

r->xtab[(int)*first].sz = ssz;

}

return(ROFF_IGN);

return ROFF_IGN;

}

static enum rofferr

roff_so(ROFF_ARGS)

{

char *name;

char *name, *cp;

name = *bufp + pos;

name = buf->buf + pos;

mandoc_vmsg(MANDOCERR_SO, r->parse, ln, ppos, ".so %s", name);

mandoc_vmsg(MANDOCERR_SO, r->parse, ln, ppos, "so %s", name);

* Handle `so'. Be EXTREMELY careful, as we shouldn't be

Line 1948 roff_so(ROFF_ARGS)

Line 2867 roff_so(ROFF_ARGS)

* or using absolute paths.

if ('/' == *name || strstr(name, "../") || strstr(name, "/..")) {

if (*name == '/' || strstr(name, "../") || strstr(name, "/..")) {

mandoc_vmsg(MANDOCERR_SO_PATH, r->parse, ln, ppos,

".so %s", name);

return(ROFF_ERR);

buf->sz = mandoc_asprintf(&cp,

".sp\nSee the file %s.\n.sp", name) + 1;

free(buf->buf);

buf->buf = cp;

*offs = 0;

return ROFF_REPARSE;

}

*offs = pos;

return(ROFF_SO);

return ROFF_SO;

}

/* --- user defined strings and macros ------------------------------------ */

static enum rofferr

roff_userdef(ROFF_ARGS)

{

const char *arg[9];

const char *arg[9], *ap;

char *cp, *n1, *n2;

int i;

int expand_count, i, ib, ie;

size_t asz, rsz;

* Collect pointers to macro argument strings

* and NUL-terminate them.

cp = *bufp + pos;

for (i = 0; i < 9; i++)

arg[i] = '\0' == *cp ? "" :

mandoc_getarg(r->parse, &cp, ln, &pos);

r->argc = 0;

cp = buf->buf + pos;

for (i = 0; i < 9; i++) {

if (*cp == '\0')

arg[i] = "";

else {

arg[i] = mandoc_getarg(r->parse, &cp, ln, &pos);

r->argc = i + 1;

}

* Expand macro arguments.

*szp = 0;

n1 = cp = mandoc_strdup(r->current_string);

buf->sz = strlen(r->current_string) + 1;

while (NULL != (cp = strstr(cp, "\\$"))) {

n1 = n2 = cp = mandoc_malloc(buf->sz);

i = cp[2] - '1';

memcpy(n1, r->current_string, buf->sz);

if (0 > i || 8 < i) {

expand_count = 0;

/* Not an argument invocation. */

while (*cp != '\0') {

cp += 2;

/* Scan ahead for the next argument invocation. */

if (*cp++ != '\\')

continue;

if (*cp++ != '$')

continue;

if (*cp == '*') { /* \\$* inserts all arguments */

ib = 0;

ie = r->argc - 1;

} else { /* \\$1 .. \\$9 insert one argument */

ib = ie = *cp - '1';

if (ib < 0 || ib > 8)

continue;

}

*cp = '\0';

cp -= 2;

*szp = mandoc_asprintf(&n2, "%s%s%s",

n1, arg[i], cp + 3) + 1;

cp = n2 + (cp - n1);

* Prevent infinite recursion.

free(n1);

n1 = n2;

if (cp >= n2)

expand_count = 1;

else if (++expand_count > EXPAND_LIMIT) {

mandoc_msg(MANDOCERR_ROFFLOOP, r->parse,

ln, (int)(cp - n1), NULL);

free(buf->buf);

buf->buf = n1;

return ROFF_IGN;

}

* Determine the size of the expanded argument,

* taking escaping of quotes into account.

asz = ie > ib ? ie - ib : 0; /* for blanks */

for (i = ib; i <= ie; i++) {

for (ap = arg[i]; *ap != '\0'; ap++) {

asz++;

if (*ap == '"')

asz += 3;

}

if (asz != 3) {

* Determine the size of the rest of the

* unexpanded macro, including the NUL.

rsz = buf->sz - (cp - n1) - 3;

* When shrinking, move before

* releasing the storage.

if (asz < 3)

memmove(cp + asz, cp + 3, rsz);

* Resize the storage for the macro

* and readjust the parse pointer.

buf->sz += asz - 3;

n2 = mandoc_realloc(n1, buf->sz);

cp = n2 + (cp - n1);

n1 = n2;

* When growing, make room

* for the expanded argument.

if (asz > 3)

memmove(cp + asz, cp + 3, rsz);

}

/* Copy the expanded argument, escaping quotes. */

n2 = cp;

for (i = ib; i <= ie; i++) {

for (ap = arg[i]; *ap != '\0'; ap++) {

if (*ap == '"') {

memcpy(n2, "\\(dq", 4);

n2 += 4;

} else

*n2++ = *ap;

}

if (i < ie)

*n2++ = ' ';

}

* Replace the macro invocation

* by the expanded macro.

free(*bufp);

*bufp = n1;

if (0 == *szp)

*szp = strlen(*bufp) + 1;

return(*szp > 1 && '\n' == (*bufp)[(int)*szp - 2] ?

free(buf->buf);

ROFF_REPARSE : ROFF_APPEND);

buf->buf = n1;

*offs = 0;

return buf->sz > 1 && buf->buf[buf->sz - 2] == '\n' ?

ROFF_REPARSE : ROFF_APPEND;

}

static char *

static size_t

roff_getname(struct roff *r, char **cpp, int ln, int pos)

{

char *name, *cp;

size_t namesz;

name = *cpp;

if ('\0' == *name)

return(name);

return 0;

/* Read until end of name. */

/* Read until end of name and terminate it with NUL. */

for (cp = name; '\0' != *cp && ' ' != *cp; cp++) {

for (cp = name; 1; cp++) {

if ('\0' == *cp || ' ' == *cp) {

namesz = cp - name;

break;

}

if ('\\' != *cp)

continue;

namesz = cp - name;

if ('{' == cp[1] || '}' == cp[1])

break;

cp++;

if ('\\' == *cp)

continue;

mandoc_msg(MANDOCERR_NAMESC, r->parse, ln, pos, NULL);

mandoc_vmsg(MANDOCERR_NAMESC, r->parse, ln, pos,

*cp = '\0';

"%.*s", (int)(cp - name + 1), name);

name = cp;

mandoc_escape((const char **)&cp, NULL, NULL);

break;

}

/* Nil-terminate name. */

if ('\0' != *cp)

*(cp++) = '\0';

/* Read past spaces. */

while (' ' == *cp)

cp++;

*cpp = cp;

return(name);

return namesz;

}

Line 2068 roff_setstrn(struct roffkv **r, const char *name, size

Line 3092 roff_setstrn(struct roffkv **r, const char *name, size

/* Search for an existing string with the same name. */

n = *r;

while (n && strcmp(name, n->key.p))

while (n && (namesz != n->key.sz ||

strncmp(n->key.p, name, namesz)))

n = n->next;

if (NULL == n) {

Line 2136 roff_getstrn(const struct roff *r, const char *name, s

Line 3161 roff_getstrn(const struct roff *r, const char *name, s

for (n = r->strtab; n; n = n->next)

if (0 == strncmp(name, n->key.p, len) &&

'\0' == n->key.p[(int)len])

return(n->val.p);

return n->val.p;

for (i = 0; i < PREDEFS_MAX; i++)

if (0 == strncmp(name, predefs[i].name, len) &&

'\0' == predefs[i].name[(int)len])

return(predefs[i].str);

return predefs[i].str;

return(NULL);

return NULL;

}

static void

Line 2159 roff_freestr(struct roffkv *r)

Line 3184 roff_freestr(struct roffkv *r)

}

/* --- accessors and utility functions ------------------------------------ */

const struct tbl_span *

roff_span(const struct roff *r)

{

return(r->tbl ? tbl_span(r->tbl) : NULL);

return r->tbl ? tbl_span(r->tbl) : NULL;

}

const struct eqn *

roff_eqn(const struct roff *r)

{

return(r->last_eqn ? &r->last_eqn->eqn : NULL);

return r->last_eqn ? &r->last_eqn->eqn : NULL;

}

Line 2188 roff_strdup(const struct roff *r, const char *p)

Line 3215 roff_strdup(const struct roff *r, const char *p)

enum mandoc_esc esc;

if (NULL == r->xmbtab && NULL == r->xtab)

return(mandoc_strdup(p));

return mandoc_strdup(p);

else if ('\0' == *p)

return(mandoc_strdup(""));

return mandoc_strdup("");

* Step through each character looking for term matches

Line 2204 roff_strdup(const struct roff *r, const char *p)

Line 3231 roff_strdup(const struct roff *r, const char *p)

ssz = 0;

while ('\0' != *p) {

if ('\\' != *p && r->xtab && r->xtab[(int)*p].p) {

assert((unsigned int)*p < 128);

if ('\\' != *p && r->xtab && r->xtab[(unsigned int)*p].p) {

sz = r->xtab[(int)*p].sz;

res = mandoc_realloc(res, ssz + sz + 1);

memcpy(res + ssz, r->xtab[(int)*p].p, sz);

Line 2262 roff_strdup(const struct roff *r, const char *p)

Line 3290 roff_strdup(const struct roff *r, const char *p)

}

res[(int)ssz] = '\0';

return(res);

return res;

}

int

roff_getformat(const struct roff *r)

{

return r->format;

}

* Find out whether a line is a macro line or not.

* If it is, adjust the current position and return one; if it isn't,

Line 2285 roff_getcontrol(const struct roff *r, const char *cp,

Line 3320 roff_getcontrol(const struct roff *r, const char *cp,

if (0 != r->control && cp[pos] == r->control)

pos++;

else if (0 != r->control)

return(0);

return 0;

else if ('\\' == cp[pos] && '.' == cp[pos + 1])

pos += 2;

else if ('.' == cp[pos] || '\'' == cp[pos])

pos++;

else

return(0);

return 0;

while (' ' == cp[pos] || '\t' == cp[pos])

pos++;

*ppos = pos;

return(1);

return 1;

}

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