mandoc/roff.c - diff

Return to roff.c CVS log

Up to [cvsweb.bsd.lv] / mandoc

Diff for /mandoc/roff.c between version 1.224 and 1.276

version 1.224, 2014/08/01 17:27:44

version 1.276, 2015/09/26 00:54:04

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

Line 36

Line 39

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

#define EXPAND_LIMIT 1000

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

enum rofft {

ROFF_ab,

ROFF_ad,

ROFF_af,

ROFF_aln,

ROFF_als,

ROFF_am,

ROFF_ami,

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_dei,

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_tr,

ROFF_tc,

ROFF_Dd,

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_TE,

ROFF_uf,

ROFF_T_,

ROFF_ul,

ROFF_EQ,

ROFF_unformat,

ROFF_EN,

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

Line 106 struct roffreg {

Line 316 struct roffreg {

struct roff {

struct mparse *parse; /* parse point */

const struct mchars *mchars; /* character table */

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

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

struct roffreg *regtab; /* number registers */

Line 119 struct roff {

Line 330 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 */

};

Line 138 struct roffnode {

Line 352 struct roffnode {

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

enum rofft 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 165 struct predef {

Line 378 struct predef {

#define PREDEF(__name, __str) \

{ (__name), (__str) },

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

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

static void roffhash_init(void);

static void roffnode_cleanscope(struct roff *);

Line 174 static void roffnode_push(struct roff *, enum rofft,

Line 389 static void roffnode_push(struct roff *, enum rofft,

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 181 static enum rofferr roff_cond(ROFF_ARGS);

Line 397 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 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 *,

int, int, const char *);

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

int, int);

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

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

static enum rofferr roff_res(struct roff *,

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

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 221 static enum rofferr roff_TS(ROFF_ARGS);

Line 443 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(). */

static struct roffmac *hash[HASHWIDTH];

static struct roffmac roffs[ROFF_MAX] = {

{ "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 318 static int roffit_lines; /* number of lines to delay

Line 744 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 370 roffhash_find(const char *p, size_t s)

Line 798 roffhash_find(const char *p, size_t s)

return(ROFF_MAX);

}

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

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

* pending.

Line 410 roffnode_push(struct roff *r, enum rofft tok, const ch

Line 840 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 456 roff_reset(struct roff *r)

Line 888 roff_reset(struct roff *r)

{

roff_free1(r);

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

r->control = 0;

}

Line 468 roff_free(struct roff *r)

Line 901 roff_free(struct roff *r)

}

struct roff *

roff_alloc(struct mparse *parse, int options)

roff_alloc(struct mparse *parse, const struct mchars *mchars, int options)

{

struct roff *r;

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

r->parse = parse;

r->mchars = mchars;

r->options = options;

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

r->rstackpos = -1;

roffhash_init();

Line 482 roff_alloc(struct mparse *parse, int options)

Line 917 roff_alloc(struct mparse *parse, int options)

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 |= MDOC_SYNPRETTY;

else

n->flags &= ~MDOC_SYNPRETTY;

if (man->flags & MDOC_NEWLINE)

n->flags |= MDOC_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:

man->last->next = n;

n->prev = man->last;

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

break;

case ROFF_NEXT_CHILD:

man->last->child = n;

n->parent = man->last;

break;

default:

abort();

}

n->parent->nchild++;

n->parent->last = n;

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

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

switch (n->type) {

case ROFFT_BODY:

if (n->end != ENDBODY_NOT)

break;

/* FALLTHROUGH */

case ROFFT_TAIL:

/* FALLTHROUGH */

case ROFFT_HEAD:

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

break;

default:

break;

}

if (man->macroset == MACROSET_MDOC)

mdoc_valid_pre(man, n);

switch (n->type) {

case ROFFT_HEAD:

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

n->parent->head = n;

break;

case ROFFT_BODY:

if (n->end)

break;

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

n->parent->body = n;

break;

case ROFFT_TAIL:

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

n->parent->tail = n;

break;

default:

break;

}

man->last = n;

}

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);

if (man->macroset == MACROSET_MDOC)

mdoc_valid_post(man);

else

man_valid_post(man);

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 |= MDOC_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);

if (man->macroset == MACROSET_MDOC)

mdoc_valid_post(man);

else

man_valid_post(man);

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) {

n->parent->nchild--;

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);

assert(n->nchild == 0);

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 and escape sequences. */

cp = n->string;

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

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

cp++;

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

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

cp++;

else

break;

}

/* Skip trailing whitespace. */

for (sz = strlen(cp); 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 496 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1295 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 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 542 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1343 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);

if (esc == ESCAPE_ERROR ||

(esc == ESCAPE_SPECIAL &&

mchars_spec2cp(r->mchars, stnam, inaml) < 0))

mandoc_vmsg(MANDOCERR_ESC_BAD,

r->parse, ln, (int)(stesc - *bufp),

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);

}

Line 561 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1365 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 587 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1391 roff_res(struct roff *r, char **bufp, size_t *szp, int

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

naml = 0;

arg_complete = 1;

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

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

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

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

mandoc_msg(MANDOCERR_ESC_BAD, r->parse,

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

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:

/* FALLTHROUGH */

case ESCAPE_UNICODE:

/* FALLTHROUGH */

case ESCAPE_NUMBERED:

/* FALLTHROUGH */

case ESCAPE_OVERSTRIKE:

naml++;

break;

default:

break;

}

Line 614 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1436 roff_res(struct roff *r, char **bufp, size_t *szp, int

case 'B':

npos = 0;

ubuf[0] = arg_complete &&

roff_evalnum(stnam, &npos, NULL, 0) &&

roff_evalnum(r, ln, stnam, &npos,

NULL, ROFFNUM_SCALE) &&

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

ubuf[1] = '\0';

break;

Line 632 roff_res(struct roff *r, char **bufp, size_t *szp, int

Line 1455 roff_res(struct roff *r, char **bufp, size_t *szp, int

break;

}

if (NULL == res) {

if (res == NULL) {

mandoc_vmsg(MANDOCERR_STR_UNDEF,

r->parse, ln, (int)(stesc - *bufp),

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);

}

* 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 669 roff_parsetext(char **bufp, size_t *szp, int pos, int

Line 1494 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 695 roff_parsetext(char **bufp, size_t *szp, int pos, int

Line 1538 roff_parsetext(char **bufp, size_t *szp, int pos, int

*p = ASCII_HYPH;

p++;

}

/* 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 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)

if (r->tbl == NULL &&

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(ROFF_CONT == e);

assert(e == ROFF_CONT);

ppos = pos;

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

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

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

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

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

if (ROFF_CONT != e)

if (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 765 roff_parseln(struct roff *r, int ln, char **bufp,

Line 1614 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, bufp, szp,

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

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 == ROFF_MAX || 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] == ' ')

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, ln, ppos)))

if (t == ROFF_MAX)

return(ROFF_CONT);

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

assert(roffs[t].proc);

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

Line 1701 roff_parse(struct roff *r, char *buf, int *pos, int ln

return(t);

}

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

static enum rofferr

roff_cblock(ROFF_ARGS)

{

Line 842 roff_cblock(ROFF_ARGS)

Line 1712 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_BLK_NOTOPEN, r->parse,

ln, ppos, "..");

return(ROFF_IGN);

Line 867 roff_cblock(ROFF_ARGS)

Line 1737 roff_cblock(ROFF_ARGS)

return(ROFF_IGN);

}

if ((*bufp)[pos])

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

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

".. %s", *bufp + pos);

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

roffnode_pop(r);

roffnode_cleanscope(r);

Line 931 roff_block(ROFF_ARGS)

Line 1801 roff_block(ROFF_ARGS)

/* Ignore groff compatibility mode for now. */

if (ROFF_de1 == tok)

if (tok == ROFF_de1)

tok = ROFF_de;

else if (ROFF_am1 == tok)

else if (tok == ROFF_dei1)

tok = ROFF_dei;

else if (tok == ROFF_am1)

tok = ROFF_am;

else if (tok == ROFF_ami1)

tok = ROFF_ami;

/* Parse the macro name argument. */

cp = *bufp + pos;

cp = buf->buf + pos;

if (ROFF_ig == tok) {

if (tok == ROFF_ig) {

iname = NULL;

namesz = 0;

} else {

Line 950 roff_block(ROFF_ARGS)

Line 1824 roff_block(ROFF_ARGS)

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

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

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

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

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

mandoc_vmsg(MANDOCERR_STR_UNDEF,

r->parse, ln, (int)(iname - *bufp),

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

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

namesz = 0;

} else

Line 961 roff_block(ROFF_ARGS)

Line 1835 roff_block(ROFF_ARGS)

} else

name = iname;

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

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

mandoc_msg(MANDOCERR_REQ_EMPTY, r->parse,

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

return(ROFF_IGN);

Line 975 roff_block(ROFF_ARGS)

Line 1849 roff_block(ROFF_ARGS)

* appended from roff_block_text() in multiline mode.

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

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

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

if ('\0' == *cp)

if (*cp == '\0')

return(ROFF_IGN);

/* Get the custom end marker. */

Line 988 roff_block(ROFF_ARGS)

Line 1862 roff_block(ROFF_ARGS)

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

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

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

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

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

mandoc_vmsg(MANDOCERR_STR_UNDEF,

r->parse, ln, (int)(iname - *bufp),

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

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

namesz = 0;

} else

Line 1002 roff_block(ROFF_ARGS)

Line 1876 roff_block(ROFF_ARGS)

if (namesz)

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

if ('\0' != *cp)

if (*cp != '\0')

mandoc_vmsg(MANDOCERR_ARG_EXCESS, r->parse,

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

Line 1026 roff_block_sub(ROFF_ARGS)

Line 1900 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, ln, ppos))

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

ROFF_MAX)

return(ROFF_RERUN);

return(ROFF_IGN);

}

Line 1051 roff_block_sub(ROFF_ARGS)

Line 1926 roff_block_sub(ROFF_ARGS)

* pulling it out of the hashtable.

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

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

if (ROFF_cblock != t) {

if (t != ROFF_cblock) {

if (ROFF_ig != tok)

if (tok != ROFF_ig)

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

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

return(ROFF_IGN);

}

assert(roffs[t].proc);

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

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

}

static enum rofferr

roff_block_text(ROFF_ARGS)

{

if (ROFF_ig != 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);

}

Line 1082 roff_cond_sub(ROFF_ARGS)

Line 1957 roff_cond_sub(ROFF_ARGS)

rr = r->last->rule;

roffnode_cleanscope(r);

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

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 != ROFF_MAX) &&

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

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

assert(roffs[t].proc);

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

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

ln, ppos, pos, offs));

}

Line 1101 roff_cond_sub(ROFF_ARGS)

Line 1975 roff_cond_sub(ROFF_ARGS)

* 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);

}

Line 1126 roff_cond_text(ROFF_ARGS)

Line 2001 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);

}

/* --- 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 1144 roff_cond_text(ROFF_ARGS)

Line 2022 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 1164 roff_getnum(const char *v, int *pos, int *res)

Line 2046 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. */

return 1;

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':

/* FALLTHROUGH */

case 'P':

scaled = *res * 40;

break;

case 'm':

/* FALLTHROUGH */

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 1205 roff_evalstrcond(const char *v, int *pos)

Line 2126 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);

Line 1216 out:

Line 2137 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 1227 roff_evalcond(const char *v, int *pos)

Line 2150 roff_evalcond(const char *v, int *pos)

wanttrue = 1;

switch (v[*pos]) {

case '\0':

return(0);

case 'n':

/* FALLTHROUGH */

case 'o':

Line 1238 roff_evalcond(const char *v, int *pos)

Line 2163 roff_evalcond(const char *v, int *pos)

/* FALLTHROUGH */

case 'e':

/* FALLTHROUGH */

case 'r':

/* FALLTHROUGH */

case 't':

/* FALLTHROUGH */

case 'v':

(*pos)++;

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;

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

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

else

else if (*pos == savepos)

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

else

return (0);

}

static enum rofferr

Line 1261 roff_line_ignore(ROFF_ARGS)

Line 2194 roff_line_ignore(ROFF_ARGS)

}

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 1274 roff_cond(ROFF_ARGS)

Line 2225 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 + 1 == r->rstacksz) {

r->rstacksz += 16;

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

Line 1303 roff_cond(ROFF_ARGS)

Line 2254 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 1325 roff_cond(ROFF_ARGS)

Line 2278 roff_cond(ROFF_ARGS)

* nothing but trailing whitespace.

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

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

mandoc_msg(MANDOCERR_COND_EMPTY, r->parse,

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

Line 1343 roff_ds(ROFF_ARGS)

Line 2296 roff_ds(ROFF_ARGS)

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;

* The first word is the name of the string.

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

* abort the `ds' request without defining anything.

name = string = *bufp + pos;

name = string = buf->buf + pos;

if ('\0' == *name)

if (*name == '\0')

return(ROFF_IGN);

namesz = roff_getname(r, &string, ln, pos);

if ('\\' == name[namesz])

if (name[namesz] == '\\')

return(ROFF_IGN);

/* Read past the initial double-quote, if any. */

if ('"' == *string)

if (*string == '"')

string++;

/* The rest is the value. */

Line 1442 roff_getop(const char *v, int *pos, char *res)

Line 2402 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);

Line 1471 roff_evalpar(const char *v, int *pos, int *res)

Line 2432 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 1481 roff_evalnum(const char *v, int *pos, int *res, int sk

Line 2443 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);

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);

if (skipwhite)

if (flags & ROFFNUM_WHITE)

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

(*pos)++;

Line 1521 roff_evalnum(const char *v, int *pos, int *res, int sk

Line 2483 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 1565 roff_evalnum(const char *v, int *pos, int *res, int sk

Line 2539 roff_evalnum(const char *v, int *pos, int *res, int sk

return(1);

}

/* --- register management ------------------------------------------------ */

void

roff_setreg(struct roff *r, const char *name, int val, char sign)

{

Line 1601 roff_setreg(struct roff *r, const char *name, int val,

Line 2577 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);

case 'g': /* Groff compatibility mode is always on. */

Line 1629 roff_getreg(const struct roff *r, const char *name)

Line 2607 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);

}

Line 1648 roff_getregn(const struct roff *r, const char *name, s

Line 2626 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);

}

Line 1661 roff_getregn(const struct roff *r, const char *name, s

Line 2639 roff_getregn(const struct roff *r, const char *name, s

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 1682 roff_nr(ROFF_ARGS)

Line 2680 roff_nr(ROFF_ARGS)

int iv;

char sign;

key = val = *bufp + pos;

key = val = buf->buf + pos;

if ('\0' == *key)

if (*key == '\0')

return(ROFF_IGN);

keysz = roff_getname(r, &val, ln, pos);

if ('\\' == key[keysz])

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);

Line 1708 roff_rr(ROFF_ARGS)

Line 2706 roff_rr(ROFF_ARGS)

char *name, *cp;

size_t namesz;

name = cp = *bufp + pos;

name = cp = buf->buf + pos;

if ('\0' == *name)

if (*name == '\0')

return(ROFF_IGN);

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

name[namesz] = '\0';

Line 1717 roff_rr(ROFF_ARGS)

Line 2715 roff_rr(ROFF_ARGS)

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);

Line 1729 roff_rr(ROFF_ARGS)

Line 2727 roff_rr(ROFF_ARGS)

return(ROFF_IGN);

}

/* --- handler functions for roff requests -------------------------------- */

static enum rofferr

roff_rm(ROFF_ARGS)

{

Line 1736 roff_rm(ROFF_ARGS)

Line 2736 roff_rm(ROFF_ARGS)

char *cp;

size_t namesz;

cp = *bufp + pos;

cp = buf->buf + pos;

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

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

name = cp;

namesz = roff_getname(r, &cp, ln, (int)(cp - *bufp));

namesz = roff_getname(r, &cp, ln, (int)(cp - buf->buf));

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

if ('\\' == name[namesz])

if (name[namesz] == '\\')

break;

}

return(ROFF_IGN);

Line 1750 roff_rm(ROFF_ARGS)

Line 2750 roff_rm(ROFF_ARGS)

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';

if ((iv = mandoc_strntoi(cp, len, 10)) <= 0) {

mandoc_msg(MANDOCERR_IT_NONUM, r->parse,

ln, ppos, *bufp + 1);

ln, ppos, buf->buf + 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 ||

strcmp(buf->buf + pos, "an-trap") ?

buf->buf + pos : "br");

return(ROFF_IGN);

}

Line 1776 roff_Dd(ROFF_ARGS)

Line 2781 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);

if (r->format == 0)

r->format = MPARSE_MDOC;

return(ROFF_CONT);

}

Line 1788 roff_TH(ROFF_ARGS)

Line 2796 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);

if (r->format == 0)

r->format = MPARSE_MAN;

return(ROFF_CONT);

}

Line 1802 roff_TE(ROFF_ARGS)

Line 2813 roff_TE(ROFF_ARGS)

if (NULL == r->tbl)

mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,

ln, ppos, "TE");

else

else if ( ! tbl_end(&r->tbl)) {

tbl_end(&r->tbl);

free(buf->buf);

buf->buf = mandoc_strdup(".sp");

buf->sz = 4;

return(ROFF_REPARSE);

}

return(ROFF_IGN);

}

Line 1821 roff_T_(ROFF_ARGS)

Line 2835 roff_T_(ROFF_ARGS)

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);

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);

}

Line 1892 roff_TS(ROFF_ARGS)

Line 2957 roff_TS(ROFF_ARGS)

}

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);

}

Line 1914 roff_tr(ROFF_ARGS)

Line 2988 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);

}

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_ESC_BAD, r->parse,

ln, (int)(p - *bufp), first);

ln, (int)(p - buf->buf), first);

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_ESC_BAD, r->parse,

ln, (int)(p - *bufp), second);

ln, (int)(p - buf->buf), second);

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 1957 roff_tr(ROFF_ARGS)

Line 3031 roff_tr(ROFF_ARGS)

continue;

}

if (NULL == r->xtab)

if (r->xtab == NULL)

r->xtab = mandoc_calloc(128,

sizeof(struct roffstr));

Line 1972 roff_tr(ROFF_ARGS)

Line 3046 roff_tr(ROFF_ARGS)

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);

Line 1984 roff_so(ROFF_ARGS)

Line 3058 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);

}

/* --- 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 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 = cp = mandoc_malloc(buf->sz);

i = cp[2] - '1';

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

if (0 > i || 8 < i) {

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

/* Not an argument invocation. */

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);

* Determine the size of the expanded argument,

free(n1);

* taking escaping of quotes into account.

n1 = n2;

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);

buf->buf = n1;

*offs = 0;

return(buf->sz > 1 && buf->buf[buf->sz - 2] == '\n' ?

ROFF_REPARSE : ROFF_APPEND);

}

Line 2201 roff_freestr(struct roffkv *r)

Line 3360 roff_freestr(struct roffkv *r)

}

/* --- accessors and utility functions ------------------------------------ */

const struct tbl_span *

roff_span(const struct roff *r)

{

Line 2305 roff_strdup(const struct roff *r, const char *p)

Line 3466 roff_strdup(const struct roff *r, const char *p)

res[(int)ssz] = '\0';

return(res);

}

int

roff_getformat(const struct roff *r)

{

return(r->format);

}

CVSweb