mandoc/roff.c - diff

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Diff for /mandoc/roff.c between version 1.284 and 1.294

version 1.284, 2016/01/08 17:48:10

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 38

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

enum rofft {

ROFF_ab,

ROFF_ad,

ROFF_af,

ROFF_aln,

ROFF_als,

ROFF_am,

ROFF_am1,

ROFF_ami,

ROFF_ami1,

ROFF_as,

ROFF_as1,

ROFF_asciify,

ROFF_backtrace,

ROFF_bd,

ROFF_bleedat,

ROFF_blm,

ROFF_box,

ROFF_boxa,

ROFF_bp,

ROFF_BP,

/* MAN_br, MDOC_br */

ROFF_break,

ROFF_breakchar,

ROFF_brnl,

ROFF_brp,

ROFF_brpnl,

ROFF_c2,

ROFF_cc,

ROFF_ce,

ROFF_cf,

ROFF_cflags,

ROFF_ch,

ROFF_char,

ROFF_chop,

ROFF_class,

ROFF_close,

ROFF_CL,

ROFF_color,

ROFF_composite,

ROFF_continue,

ROFF_cp,

ROFF_cropat,

ROFF_cs,

ROFF_cu,

ROFF_da,

ROFF_dch,

ROFF_Dd,

ROFF_de,

ROFF_de1,

ROFF_defcolor,

ROFF_dei,

ROFF_dei1,

ROFF_device,

ROFF_devicem,

ROFF_di,

ROFF_do,

ROFF_ds,

ROFF_ds1,

ROFF_dwh,

ROFF_dt,

ROFF_ec,

ROFF_ecr,

ROFF_ecs,

ROFF_el,

ROFF_em,

ROFF_EN,

ROFF_eo,

ROFF_EP,

ROFF_EQ,

ROFF_errprint,

ROFF_ev,

ROFF_evc,

ROFF_ex,

ROFF_fallback,

ROFF_fam,

ROFF_fc,

ROFF_fchar,

ROFF_fcolor,

ROFF_fdeferlig,

ROFF_feature,

/* MAN_fi; ignored in mdoc(7) */

ROFF_fkern,

ROFF_fl,

ROFF_flig,

ROFF_fp,

ROFF_fps,

ROFF_fschar,

ROFF_fspacewidth,

ROFF_fspecial,

/* MAN_ft; ignored in mdoc(7) */

ROFF_ftr,

ROFF_fzoom,

ROFF_gcolor,

ROFF_hc,

ROFF_hcode,

ROFF_hidechar,

ROFF_hla,

ROFF_hlm,

ROFF_hpf,

ROFF_hpfa,

ROFF_hpfcode,

ROFF_hw,

ROFF_hy,

ROFF_hylang,

ROFF_hylen,

ROFF_hym,

ROFF_hypp,

ROFF_hys,

ROFF_ie,

ROFF_if,

ROFF_ig,

/* MAN_in; ignored in mdoc(7) */

ROFF_index,

ROFF_it,

ROFF_itc,

ROFF_IX,

ROFF_kern,

ROFF_kernafter,

ROFF_kernbefore,

ROFF_kernpair,

ROFF_lc,

ROFF_lc_ctype,

ROFF_lds,

ROFF_length,

ROFF_letadj,

ROFF_lf,

ROFF_lg,

ROFF_lhang,

ROFF_linetabs,

/* MAN_ll, MDOC_ll */

ROFF_lnr,

ROFF_lnrf,

ROFF_lpfx,

ROFF_ls,

ROFF_lsm,

ROFF_lt,

ROFF_mc,

ROFF_mediasize,

ROFF_minss,

ROFF_mk,

ROFF_mso,

ROFF_na,

ROFF_ne,

/* MAN_nf; ignored in mdoc(7) */

ROFF_nh,

ROFF_nhychar,

ROFF_nm,

ROFF_nn,

ROFF_nop,

ROFF_nr,

ROFF_nrf,

ROFF_nroff,

ROFF_ns,

ROFF_nx,

ROFF_open,

ROFF_opena,

ROFF_os,

ROFF_output,

ROFF_padj,

ROFF_papersize,

ROFF_pc,

ROFF_pev,

ROFF_pi,

ROFF_PI,

ROFF_pl,

ROFF_pm,

ROFF_pn,

ROFF_pnr,

ROFF_po,

ROFF_ps,

ROFF_psbb,

ROFF_pshape,

ROFF_pso,

ROFF_ptr,

ROFF_pvs,

ROFF_rchar,

ROFF_rd,

ROFF_recursionlimit,

ROFF_return,

ROFF_rfschar,

ROFF_rhang,

ROFF_rj,

ROFF_rm,

ROFF_rn,

ROFF_rnn,

ROFF_rr,

ROFF_rs,

ROFF_rt,

ROFF_schar,

ROFF_sentchar,

ROFF_shc,

ROFF_shift,

ROFF_sizes,

ROFF_so,

/* MAN_sp, MDOC_sp */

ROFF_spacewidth,

ROFF_special,

ROFF_spreadwarn,

ROFF_ss,

ROFF_sty,

ROFF_substring,

ROFF_sv,

ROFF_sy,

ROFF_T_,

ROFF_ta,

ROFF_tc,

ROFF_TE,

ROFF_TH,

ROFF_ti,

ROFF_tkf,

ROFF_tl,

ROFF_tm,

ROFF_tm1,

ROFF_tmc,

ROFF_tr,

ROFF_track,

ROFF_transchar,

ROFF_trf,

ROFF_trimat,

ROFF_trin,

ROFF_trnt,

ROFF_troff,

ROFF_TS,

ROFF_uf,

ROFF_ul,

ROFF_unformat,

ROFF_unwatch,

ROFF_unwatchn,

ROFF_vpt,

ROFF_vs,

ROFF_warn,

ROFF_warnscale,

ROFF_watch,

ROFF_watchlength,

ROFF_watchn,

ROFF_wh,

ROFF_while,

ROFF_write,

ROFF_writec,

ROFF_writem,

ROFF_xflag,

ROFF_cblock,

ROFF_USERDEF,

ROFF_MAX

};

* An incredibly-simple string buffer.

Line 336 struct roff {

Line 89 struct roff {

};

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 347 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 */ \

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

int ln, /* parse line */ \

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

Line 376 struct predef {

Line 129 struct predef {

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

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

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);

Line 420 static enum rofferr roff_line_ignore(ROFF_ARGS);

Line 173 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 enum rofft roff_parse(struct roff *, char *, int *,

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

int, int);

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

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

Line 453 static enum rofferr roff_userdef(ROFF_ARGS);

Line 206 static enum rofferr roff_userdef(ROFF_ARGS);

#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 },

Line 764 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 781 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 -------------------------------------------- */

Line 819 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 991 roff_node_alloc(struct roff_man *man, int line, int po

Line 849 roff_node_alloc(struct roff_man *man, int line, int po

n->sec = man->lastsec;

if (man->flags & MDOC_SYNOPSIS)

n->flags |= MDOC_SYNPRETTY;

n->flags |= NODE_SYNPRETTY;

else

n->flags &= ~MDOC_SYNPRETTY;

n->flags &= ~NODE_SYNPRETTY;

if (man->flags & MDOC_NEWLINE)

n->flags |= MDOC_LINE;

n->flags |= NODE_LINE;

man->flags &= ~MDOC_NEWLINE;

return n;

Line 1017 roff_node_append(struct roff_man *man, struct roff_nod

Line 875 roff_node_append(struct roff_man *man, struct roff_nod

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;

n->parent->last = n;

break;

default:

abort();

Line 1059 roff_word_alloc(struct roff_man *man, int line, int po

Line 921 roff_word_alloc(struct roff_man *man, int line, int po

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

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

roff_node_append(man, n);

if (man->macroset == MACROSET_MDOC)

n->flags |= NODE_VALID | NODE_ENDED;

n->flags |= MDOC_VALID | MDOC_ENDED;

else

n->flags |= MAN_VALID;

man->next = ROFF_NEXT_SIBLING;

}

Line 1132 roff_addeqn(struct roff_man *man, const struct eqn *eq

Line 991 roff_addeqn(struct roff_man *man, const struct eqn *eq

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

n->eqn = eqn;

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

n->flags |= MDOC_LINE;

n->flags |= NODE_LINE;

roff_node_append(man, n);

man->next = ROFF_NEXT_SIBLING;

}

Line 1147 roff_addtbl(struct roff_man *man, const struct tbl_spa

Line 1006 roff_addtbl(struct roff_man *man, const struct tbl_spa

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

n->span = tbl;

roff_node_append(man, n);

if (man->macroset == MACROSET_MDOC)

n->flags |= NODE_VALID | NODE_ENDED;

n->flags |= MDOC_VALID | MDOC_ENDED;

else

n->flags |= MAN_VALID;

man->next = ROFF_NEXT_SIBLING;

}

Line 1225 deroff(char **dest, const struct roff_node *n)

Line 1081 deroff(char **dest, const struct roff_node *n)

return;

}

/* Skip leading whitespace and escape sequences. */

/* Skip leading whitespace. */

cp = n->string;

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

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

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

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

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

cp++;

mandoc_escape((const char **)&cp, NULL, NULL);

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

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

cp++;

else

break;

}

/* Skip trailing backslash. */

sz = strlen(cp);

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

sz--;

/* Skip trailing whitespace. */

for (sz = strlen(cp); sz; sz--)

for (; sz; sz--)

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

break;

Line 1520 roff_parsetext(struct buf *buf, int pos, int *offs)

Line 1379 roff_parsetext(struct buf *buf, int pos, int *offs)

enum rofferr

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

{

enum rofft t;

enum roff_tok t;

enum rofferr e;

int pos; /* parse point */

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

Line 1559 roff_parseln(struct roff *r, int ln, struct buf *buf,

Line 1418 roff_parseln(struct roff *r, int ln, struct buf *buf,

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

t = r->last->tok;

assert(roffs[t].text);

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

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

if (e == ROFF_IGN)

if (e != ROFF_CONT)

return e;

assert(e == ROFF_CONT);

}

if (r->eqn != NULL)

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

Line 1589 roff_parseln(struct roff *r, int ln, struct buf *buf,

Line 1447 roff_parseln(struct roff *r, int ln, struct buf *buf,

if (r->last) {

t = r->last->tok;

assert(roffs[t].sub);

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

}

Line 1600 roff_parseln(struct roff *r, int ln, struct buf *buf,

Line 1457 roff_parseln(struct roff *r, int ln, struct buf *buf,

/* Tables ignore most macros. */

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

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

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

pos++;

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

}

Line 1617 roff_parseln(struct roff *r, int ln, struct buf *buf,

Line 1474 roff_parseln(struct roff *r, int ln, struct buf *buf,

* Let the standard macro set parsers handle it.

if (t == ROFF_MAX)

if (t == TOKEN_NONE)

return ROFF_CONT;

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

assert(roffs[t].proc);

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

}

Line 1652 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, char *buf, int *pos, int ln, int ppos)

{

char *cp;

const char *mac;

size_t maclen;

enum rofft t;

enum roff_tok t;

cp = buf + *pos;

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

return ROFF_MAX;

return TOKEN_NONE;

mac = cp;

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

Line 1671 roff_parse(struct roff *r, char *buf, int *pos, int ln

Line 1527 roff_parse(struct roff *r, char *buf, int *pos, int ln

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

? ROFF_USERDEF : roffhash_find(mac, maclen);

if (ROFF_MAX != t)

if (t != TOKEN_NONE)

*pos = cp - buf;

return t;

Line 1856 roff_block(ROFF_ARGS)

Line 1712 roff_block(ROFF_ARGS)

static enum rofferr

roff_block_sub(ROFF_ARGS)

{

enum rofft t;

enum roff_tok t;

int i, j;

Line 1885 roff_block_sub(ROFF_ARGS)

Line 1741 roff_block_sub(ROFF_ARGS)

pos = i;

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

ROFF_MAX)

TOKEN_NONE)

return ROFF_RERUN;

return ROFF_IGN;

}

Line 1904 roff_block_sub(ROFF_ARGS)

Line 1760 roff_block_sub(ROFF_ARGS)

return ROFF_IGN;

}

assert(roffs[t].proc);

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

}

Line 1921 roff_block_text(ROFF_ARGS)

Line 1776 roff_block_text(ROFF_ARGS)

static enum rofferr

roff_cond_sub(ROFF_ARGS)

{

enum rofft t;

enum roff_tok t;

char *ep;

int rr;

Line 1934 roff_cond_sub(ROFF_ARGS)

Line 1789 roff_cond_sub(ROFF_ARGS)

* required or when the conditional evaluated to true.

if ((t != ROFF_MAX) &&

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

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

assert(roffs[t].proc);

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

}

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

Line 3037 roff_userdef(ROFF_ARGS)

Line 2889 roff_userdef(ROFF_ARGS)

{

const char *arg[9], *ap;

char *cp, *n1, *n2;

int i, ib, ie;

int expand_count, i, ib, ie;

size_t asz, rsz;

Line 3061 roff_userdef(ROFF_ARGS)

Line 2913 roff_userdef(ROFF_ARGS)

buf->sz = strlen(r->current_string) + 1;

n1 = cp = mandoc_malloc(buf->sz);

n1 = n2 = cp = mandoc_malloc(buf->sz);

memcpy(n1, r->current_string, buf->sz);

expand_count = 0;

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

/* Scan ahead for the next argument invocation. */

Line 3082 roff_userdef(ROFF_ARGS)

Line 2935 roff_userdef(ROFF_ARGS)

cp -= 2;

* Prevent infinite recursion.

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.

Line 3364 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);

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