-/* $Id: roff.c,v 1.313 2017/06/17 22:43:14 schwarze Exp $ */
+/* $Id: roff.c,v 1.346 2018/12/13 02:06:07 schwarze Exp $ */
/*
* Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2010-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2010-2015, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
#include <stdlib.h>
#include <string.h>
-#include "mandoc.h"
#include "mandoc_aux.h"
#include "mandoc_ohash.h"
+#include "mandoc.h"
#include "roff.h"
#include "libmandoc.h"
#include "roff_int.h"
#include "libroff.h"
+#include "tbl_parse.h"
/* Maximum number of string expansions per line, to break infinite loops. */
#define EXPAND_LIMIT 1000
+/* Types of definitions of macros and strings. */
+#define ROFFDEF_USER (1 << 1) /* User-defined. */
+#define ROFFDEF_PRE (1 << 2) /* Predefined. */
+#define ROFFDEF_REN (1 << 3) /* Renamed standard macro. */
+#define ROFFDEF_STD (1 << 4) /* mdoc(7) or man(7) macro. */
+#define ROFFDEF_ANY (ROFFDEF_USER | ROFFDEF_PRE | \
+ ROFFDEF_REN | ROFFDEF_STD)
+#define ROFFDEF_UNDEF (1 << 5) /* Completely undefined. */
+
/* --- data types --------------------------------------------------------- */
/*
struct roffreg {
struct roffstr key;
int val;
+ int step;
struct roffreg *next;
};
char name[];
};
+/*
+ * A macro processing context.
+ * More than one is needed when macro calls are nested.
+ */
+struct mctx {
+ char **argv;
+ int argc;
+ int argsz;
+};
+
struct roff {
struct mparse *parse; /* parse point */
struct roff_man *man; /* mdoc or man parser */
struct roffnode *last; /* leaf of stack */
+ struct mctx *mstack; /* stack of macro contexts */
int *rstack; /* stack of inverted `ie' values */
struct ohash *reqtab; /* request lookup table */
struct roffreg *regtab; /* number registers */
struct tbl_node *first_tbl; /* first table parsed */
struct tbl_node *last_tbl; /* last table parsed */
struct tbl_node *tbl; /* current table being parsed */
- struct eqn_node *last_eqn; /* last equation parsed */
- struct eqn_node *first_eqn; /* first equation parsed */
- struct eqn_node *eqn; /* current equation being parsed */
+ struct eqn_node *last_eqn; /* equation parser */
+ struct eqn_node *eqn; /* active equation parser */
int eqn_inline; /* current equation is inline */
int options; /* parse options */
+ int mstacksz; /* current size of mstack */
+ int mstackpos; /* position in mstack */
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 */
char escape; /* escape character */
};
int pos, /* current pos in buffer */ \
int *offs /* reset offset of buffer data */
-typedef enum rofferr (*roffproc)(ROFF_ARGS);
+typedef int (*roffproc)(ROFF_ARGS);
struct roffmac {
roffproc proc; /* process new macro */
/* --- function prototypes ------------------------------------------------ */
-static void roffnode_cleanscope(struct roff *);
-static void roffnode_pop(struct roff *);
+static int roffnode_cleanscope(struct roff *);
+static int roffnode_pop(struct roff *);
static void roffnode_push(struct roff *, enum roff_tok,
const char *, int, int);
-static enum rofferr roff_als(ROFF_ARGS);
-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_br(ROFF_ARGS);
-static enum rofferr roff_cblock(ROFF_ARGS);
-static enum rofferr roff_cc(ROFF_ARGS);
-static void roff_ccond(struct roff *, int, int);
-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 enum rofferr roff_ec(ROFF_ARGS);
-static enum rofferr roff_eo(ROFF_ARGS);
-static enum rofferr roff_eqndelim(struct roff *, struct buf *, int);
+static void roff_addtbl(struct roff_man *, int, struct tbl_node *);
+static int roff_als(ROFF_ARGS);
+static int roff_block(ROFF_ARGS);
+static int roff_block_text(ROFF_ARGS);
+static int roff_block_sub(ROFF_ARGS);
+static int roff_br(ROFF_ARGS);
+static int roff_cblock(ROFF_ARGS);
+static int roff_cc(ROFF_ARGS);
+static int roff_ccond(struct roff *, int, int);
+static int roff_char(ROFF_ARGS);
+static int roff_cond(ROFF_ARGS);
+static int roff_cond_text(ROFF_ARGS);
+static int roff_cond_sub(ROFF_ARGS);
+static int roff_ds(ROFF_ARGS);
+static int roff_ec(ROFF_ARGS);
+static int roff_eo(ROFF_ARGS);
+static int roff_eqndelim(struct roff *, struct buf *, int);
static int roff_evalcond(struct roff *r, int, char *, int *);
static int roff_evalnum(struct roff *, int,
const char *, int *, int *, int);
static size_t roff_getname(struct roff *, 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_getregn(struct roff *,
+ const char *, size_t, char);
static int roff_getregro(const struct roff *,
const char *name);
-static const char *roff_getrenn(const struct roff *,
- const char *, size_t);
-static const char *roff_getstrn(const struct roff *,
- const char *, size_t);
+static const char *roff_getstrn(struct roff *,
+ const char *, size_t, int *);
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 int roff_insec(ROFF_ARGS);
+static int roff_it(ROFF_ARGS);
+static int 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_manyarg(ROFF_ARGS);
-static enum rofferr roff_nr(ROFF_ARGS);
-static enum rofferr roff_onearg(ROFF_ARGS);
+static int roff_manyarg(ROFF_ARGS);
+static int roff_nop(ROFF_ARGS);
+static int roff_nr(ROFF_ARGS);
+static int roff_onearg(ROFF_ARGS);
static enum roff_tok roff_parse(struct roff *, char *, int *,
int, int);
-static enum rofferr roff_parsetext(struct roff *, struct buf *,
+static int roff_parsetext(struct roff *, struct buf *,
int, int *);
-static enum rofferr roff_renamed(ROFF_ARGS);
-static enum rofferr roff_res(struct roff *, struct buf *, int, int);
-static enum rofferr roff_rm(ROFF_ARGS);
-static enum rofferr roff_rn(ROFF_ARGS);
-static enum rofferr roff_rr(ROFF_ARGS);
+static int roff_renamed(ROFF_ARGS);
+static int roff_res(struct roff *, struct buf *, int, int);
+static int roff_return(ROFF_ARGS);
+static int roff_rm(ROFF_ARGS);
+static int roff_rn(ROFF_ARGS);
+static int roff_rr(ROFF_ARGS);
+static void roff_setregn(struct roff *, const char *,
+ size_t, int, char, int);
static void roff_setstr(struct roff *,
const char *, const char *, int);
static void roff_setstrn(struct roffkv **, const char *,
size_t, const char *, size_t, int);
-static enum rofferr roff_so(ROFF_ARGS);
-static enum rofferr roff_tr(ROFF_ARGS);
-static enum rofferr roff_Dd(ROFF_ARGS);
-static enum rofferr roff_TH(ROFF_ARGS);
-static enum rofferr roff_TE(ROFF_ARGS);
-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);
+static int roff_shift(ROFF_ARGS);
+static int roff_so(ROFF_ARGS);
+static int roff_tr(ROFF_ARGS);
+static int roff_Dd(ROFF_ARGS);
+static int roff_TE(ROFF_ARGS);
+static int roff_TS(ROFF_ARGS);
+static int roff_EQ(ROFF_ARGS);
+static int roff_EN(ROFF_ARGS);
+static int roff_T_(ROFF_ARGS);
+static int roff_unsupp(ROFF_ARGS);
+static int roff_userdef(ROFF_ARGS);
/* --- constant data ------------------------------------------------------ */
"Dx", "%Q", "%U", "Ta",
NULL,
"TH", "SH", "SS", "TP",
+ "TQ",
"LP", "PP", "P", "IP",
"HP", "SM", "SB", "BI",
"IB", "BR", "RB", "R",
"nf", "fi",
"RE", "RS", "DT", "UC",
"PD", "AT", "in",
- "OP", "EX", "EE", "UR",
- "UE", NULL
+ "SY", "YS", "OP",
+ "EX", "EE", "UR",
+ "UE", "MT", "ME", NULL
};
const char *const *roff_name = __roff_name;
{ roff_insec, NULL, NULL, 0 }, /* cf */
{ roff_line_ignore, NULL, NULL, 0 }, /* cflags */
{ roff_line_ignore, NULL, NULL, 0 }, /* ch */
- { roff_unsupp, NULL, NULL, 0 }, /* char */
+ { roff_char, NULL, NULL, 0 }, /* char */
{ roff_unsupp, NULL, NULL, 0 }, /* chop */
{ roff_line_ignore, NULL, NULL, 0 }, /* class */
{ roff_insec, NULL, NULL, 0 }, /* close */
{ roff_line_ignore, NULL, NULL, 0 }, /* nhychar */
{ roff_unsupp, NULL, NULL, 0 }, /* nm */
{ roff_unsupp, NULL, NULL, 0 }, /* nn */
- { roff_unsupp, NULL, NULL, 0 }, /* nop */
+ { roff_nop, NULL, NULL, 0 }, /* nop */
{ roff_nr, NULL, NULL, 0 }, /* nr */
{ roff_unsupp, NULL, NULL, 0 }, /* nrf */
{ roff_line_ignore, NULL, NULL, 0 }, /* nroff */
{ roff_unsupp, NULL, NULL, 0 }, /* rchar */
{ roff_line_ignore, NULL, NULL, 0 }, /* rd */
{ roff_line_ignore, NULL, NULL, 0 }, /* recursionlimit */
- { roff_unsupp, NULL, NULL, 0 }, /* return */
+ { roff_return, NULL, NULL, 0 }, /* return */
{ roff_unsupp, NULL, NULL, 0 }, /* rfschar */
{ roff_line_ignore, NULL, NULL, 0 }, /* rhang */
{ roff_rm, NULL, NULL, 0 }, /* rm */
{ roff_unsupp, NULL, NULL, 0 }, /* schar */
{ roff_line_ignore, NULL, NULL, 0 }, /* sentchar */
{ roff_line_ignore, NULL, NULL, 0 }, /* shc */
- { roff_unsupp, NULL, NULL, 0 }, /* shift */
+ { roff_shift, NULL, NULL, 0 }, /* shift */
{ roff_line_ignore, NULL, NULL, 0 }, /* sizes */
{ roff_so, NULL, NULL, 0 }, /* so */
{ roff_line_ignore, NULL, NULL, 0 }, /* spacewidth */
{ roff_T_, NULL, NULL, 0 }, /* T& */
{ roff_unsupp, NULL, NULL, 0 }, /* tc */
{ roff_TE, NULL, NULL, 0 }, /* TE */
- { roff_TH, NULL, NULL, 0 }, /* TH */
+ { roff_Dd, NULL, NULL, 0 }, /* TH */
{ roff_line_ignore, NULL, NULL, 0 }, /* tkf */
{ roff_unsupp, NULL, NULL, 0 }, /* tl */
{ roff_line_ignore, NULL, NULL, 0 }, /* tm */
{ roff_line_ignore, NULL, NULL, 0 }, /* watchlength */
{ roff_line_ignore, NULL, NULL, 0 }, /* watchn */
{ roff_unsupp, NULL, NULL, 0 }, /* wh */
- { roff_unsupp, NULL, NULL, 0 }, /* while */
+ { roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, /*while*/
{ roff_insec, NULL, NULL, 0 }, /* write */
{ roff_insec, NULL, NULL, 0 }, /* writec */
{ roff_insec, NULL, NULL, 0 }, /* writem */
{ roff_userdef, NULL, NULL, 0 }
};
-/* not currently implemented: Ds em Eq LP Me PP pp Or Rd Sf SH */
-const char *const __mdoc_reserved[] = {
- "Ac", "Ad", "An", "Ao", "Ap", "Aq", "Ar", "At",
- "Bc", "Bd", "Bf", "Bk", "Bl", "Bo", "Bq",
- "Brc", "Bro", "Brq", "Bsx", "Bt", "Bx",
- "Cd", "Cm", "Db", "Dc", "Dd", "Dl", "Do", "Dq",
- "Dt", "Dv", "Dx", "D1",
- "Ec", "Ed", "Ef", "Ek", "El", "Em",
- "En", "Eo", "Er", "Es", "Ev", "Ex",
- "Fa", "Fc", "Fd", "Fl", "Fn", "Fo", "Fr", "Ft", "Fx",
- "Hf", "Ic", "In", "It", "Lb", "Li", "Lk", "Lp",
- "Ms", "Mt", "Nd", "Nm", "No", "Ns", "Nx",
- "Oc", "Oo", "Op", "Os", "Ot", "Ox",
- "Pa", "Pc", "Pf", "Po", "Pp", "Pq",
- "Qc", "Ql", "Qo", "Qq", "Re", "Rs", "Rv",
- "Sc", "Sh", "Sm", "So", "Sq",
- "Ss", "St", "Sx", "Sy",
- "Ta", "Tn", "Ud", "Ux", "Va", "Vt", "Xc", "Xo", "Xr",
- "%A", "%B", "%C", "%D", "%I", "%J", "%N", "%O",
- "%P", "%Q", "%R", "%T", "%U", "%V",
- NULL
-};
-
-/* not currently implemented: BT DE DS ME MT PT SY TQ YS */
-const char *const __man_reserved[] = {
- "AT", "B", "BI", "BR", "DT",
- "EE", "EN", "EQ", "EX", "HP", "I", "IB", "IP", "IR",
- "LP", "OP", "P", "PD", "PP",
- "R", "RB", "RE", "RI", "RS", "SB", "SH", "SM", "SS",
- "TE", "TH", "TP", "TS", "T&", "UC", "UE", "UR",
- NULL
-};
-
/* Array of injected predefined strings. */
#define PREDEFS_MAX 38
static const struct predef predefs[PREDEFS_MAX] = {
* Pop the current node off of the stack of roff instructions currently
* pending.
*/
-static void
+static int
roffnode_pop(struct roff *r)
{
struct roffnode *p;
+ int inloop;
- assert(r->last);
p = r->last;
-
- r->last = r->last->parent;
+ inloop = p->tok == ROFF_while;
+ r->last = p->parent;
free(p->name);
free(p->end);
free(p);
+ return inloop;
}
/*
static void
roff_free1(struct roff *r)
{
- struct tbl_node *tbl;
- struct eqn_node *e;
int i;
- while (NULL != (tbl = r->first_tbl)) {
- r->first_tbl = tbl->next;
- tbl_free(tbl);
- }
+ tbl_free(r->first_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;
+ if (r->last_eqn != NULL)
+ eqn_free(r->last_eqn);
+ r->last_eqn = r->eqn = NULL;
+
+ while (r->mstackpos >= 0)
+ roff_userret(r);
while (r->last)
roffnode_pop(r);
void
roff_free(struct roff *r)
{
+ int i;
+
roff_free1(r);
+ for (i = 0; i < r->mstacksz; i++)
+ free(r->mstack[i].argv);
+ free(r->mstack);
roffhash_free(r->reqtab);
free(r);
}
r = mandoc_calloc(1, sizeof(struct roff));
r->parse = parse;
- r->reqtab = roffhash_alloc(0, ROFF_USERDEF);
+ r->reqtab = roffhash_alloc(0, ROFF_RENAMED);
r->options = options;
r->format = options & (MPARSE_MDOC | MPARSE_MAN);
+ r->mstackpos = -1;
r->rstackpos = -1;
r->escape = '\\';
return r;
struct roff_man *
roff_man_alloc(struct roff *roff, struct mparse *parse,
- const char *defos, int quick)
+ const char *os_s, int quick)
{
struct roff_man *man;
man = mandoc_calloc(1, sizeof(*man));
man->parse = parse;
man->roff = roff;
- man->defos = defos;
+ man->os_s = os_s;
man->quick = quick;
roff_man_alloc1(man);
roff->man = man;
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)
+static void
+roff_addtbl(struct roff_man *man, int line, struct tbl_node *tbl)
{
struct roff_node *n;
+ struct tbl_span *span;
if (man->macroset == MACROSET_MAN)
man_breakscope(man, ROFF_TS);
- 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;
+ while ((span = tbl_span(tbl)) != NULL) {
+ n = roff_node_alloc(man, line, 0, ROFFT_TBL, TOKEN_NONE);
+ n->span = span;
+ roff_node_append(man, n);
+ n->flags |= NODE_VALID | NODE_ENDED;
+ man->next = ROFF_NEXT_SIBLING;
+ }
}
void
man->first = NULL;
}
+void
+roff_node_relink(struct roff_man *man, struct roff_node *n)
+{
+ roff_node_unlink(man, n);
+ n->prev = n->next = NULL;
+ roff_node_append(man, n);
+}
+
void
roff_node_free(struct roff_node *n)
{
mdoc_argv_free(n->args);
if (n->type == ROFFT_BLOCK || n->type == ROFFT_ELEM)
free(n->norm);
+ if (n->eqn != NULL)
+ eqn_box_free(n->eqn);
free(n->string);
free(n);
}
* used in numerical expressions and conditional requests.
* Also check the syntax of the remaining escape sequences.
*/
-static enum rofferr
+static int
roff_res(struct roff *r, struct buf *buf, int ln, int pos)
{
+ struct mctx *ctx; /* current macro call context */
char ubuf[24]; /* buffer to print the number */
+ struct roff_node *n; /* used for header comments */
const char *start; /* start of the string to process */
char *stesc; /* start of an escape sequence ('\\') */
+ char *ep; /* end of comment string */
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 buf->buf to */
size_t maxl; /* expected length of the escape name */
size_t naml; /* actual length of the escape name */
+ size_t asz; /* length of the replacement */
+ size_t rsz; /* length of the rest of the string */
enum mandoc_esc esc; /* type of the escape sequence */
- enum mdoc_os os_e; /* kind of RCS id seen */
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 */
+ int quote_args; /* true for \\$@, false for \\$* */
int done; /* no more input available */
+ int deftype; /* type of definition to paste */
+ int rcsid; /* kind of RCS id seen */
+ char sign; /* increment number register */
char term; /* character terminating the escape */
/* Search forward for comments. */
/* Comment found, look for RCS id. */
+ rcsid = 0;
if ((cp = strstr(stesc, "$" "OpenBSD")) != NULL) {
- os_e = MDOC_OS_OPENBSD;
+ rcsid = 1 << MANDOC_OS_OPENBSD;
cp += 8;
} else if ((cp = strstr(stesc, "$" "NetBSD")) != NULL) {
- os_e = MDOC_OS_NETBSD;
+ rcsid = 1 << MANDOC_OS_NETBSD;
cp += 7;
}
if (cp != NULL &&
isalnum((unsigned char)*cp) == 0 &&
- strchr(cp, '$') != NULL)
- r->man->meta.rcsids |= 1 << os_e;
+ strchr(cp, '$') != NULL) {
+ if (r->man->meta.rcsids & rcsid)
+ mandoc_msg(MANDOCERR_RCS_REP, r->parse,
+ ln, stesc + 1 - buf->buf, stesc + 1);
+ r->man->meta.rcsids |= rcsid;
+ }
/* Handle trailing whitespace. */
- cp = strchr(stesc--, '\0') - 1;
- if (*cp == '\n') {
+ ep = strchr(stesc--, '\0') - 1;
+ if (*ep == '\n') {
done = 1;
- cp--;
+ ep--;
}
- if (*cp == ' ' || *cp == '\t')
+ if (*ep == ' ' || *ep == '\t')
mandoc_msg(MANDOCERR_SPACE_EOL, r->parse,
- ln, cp - buf->buf, NULL);
- while (stesc > start && stesc[-1] == ' ')
+ ln, ep - buf->buf, NULL);
+
+ /*
+ * Save comments preceding the title macro
+ * in the syntax tree.
+ */
+
+ if (r->format == 0) {
+ while (*ep == ' ' || *ep == '\t')
+ ep--;
+ ep[1] = '\0';
+ n = roff_node_alloc(r->man,
+ ln, stesc + 1 - buf->buf,
+ ROFFT_COMMENT, TOKEN_NONE);
+ n->string = mandoc_strdup(stesc + 2);
+ roff_node_append(r->man, n);
+ n->flags |= NODE_VALID | NODE_ENDED;
+ r->man->next = ROFF_NEXT_SIBLING;
+ }
+
+ /* Line continuation with comment. */
+
+ if (stesc[1] == '#') {
+ *stesc = '\0';
+ return ROFF_IGN | ROFF_APPEND;
+ }
+
+ /* Discard normal comments. */
+
+ while (stesc > start && stesc[-1] == ' ' &&
+ (stesc == start + 1 || stesc[-2] != '\\'))
stesc--;
*stesc = '\0';
break;
if (done)
continue;
else
- return ROFF_APPEND;
+ return ROFF_IGN | ROFF_APPEND;
}
/* Decide whether to expand or to check only. */
cp = stesc + 1;
switch (*cp) {
case '*':
+ case '$':
res = NULL;
break;
case 'B':
term = cp[1];
/* FALLTHROUGH */
case 'n':
+ sign = cp[1];
+ if (sign == '+' || sign == '-')
+ cp++;
res = ubuf;
break;
default:
switch (stesc[1]) {
case '*':
- if (arg_complete)
- res = roff_getstrn(r, stnam, naml);
+ if (arg_complete) {
+ deftype = ROFFDEF_USER | ROFFDEF_PRE;
+ res = roff_getstrn(r, stnam, naml, &deftype);
+
+ /*
+ * If not overriden, let \*(.T
+ * through to the formatters.
+ */
+
+ if (res == NULL && naml == 2 &&
+ stnam[0] == '.' && stnam[1] == 'T') {
+ roff_setstrn(&r->strtab,
+ ".T", 2, NULL, 0, 0);
+ stesc--;
+ continue;
+ }
+ }
break;
+ case '$':
+ if (r->mstackpos < 0) {
+ mandoc_vmsg(MANDOCERR_ARG_UNDEF,
+ r->parse, ln, (int)(stesc - buf->buf),
+ "%.3s", stesc);
+ break;
+ }
+ ctx = r->mstack + r->mstackpos;
+ npos = stesc[2] - '1';
+ if (npos >= 0 && npos <= 8) {
+ res = npos < ctx->argc ?
+ ctx->argv[npos] : "";
+ break;
+ }
+ if (stesc[2] == '*')
+ quote_args = 0;
+ else if (stesc[2] == '@')
+ quote_args = 1;
+ else {
+ mandoc_vmsg(MANDOCERR_ARG_NONUM,
+ r->parse, ln, (int)(stesc - buf->buf),
+ "%.3s", stesc);
+ break;
+ }
+ asz = 0;
+ for (npos = 0; npos < ctx->argc; npos++) {
+ if (npos)
+ asz++; /* blank */
+ if (quote_args)
+ asz += 2; /* quotes */
+ asz += strlen(ctx->argv[npos]);
+ }
+ if (asz != 3) {
+ rsz = buf->sz - (stesc - buf->buf) - 3;
+ if (asz < 3)
+ memmove(stesc + asz, stesc + 3, rsz);
+ buf->sz += asz - 3;
+ nbuf = mandoc_realloc(buf->buf, buf->sz);
+ start = nbuf + pos;
+ stesc = nbuf + (stesc - buf->buf);
+ buf->buf = nbuf;
+ if (asz > 3)
+ memmove(stesc + asz, stesc + 3, rsz);
+ }
+ for (npos = 0; npos < ctx->argc; npos++) {
+ if (npos)
+ *stesc++ = ' ';
+ if (quote_args)
+ *stesc++ = '"';
+ cp = ctx->argv[npos];
+ while (*cp != '\0')
+ *stesc++ = *cp++;
+ if (quote_args)
+ *stesc++ = '"';
+ }
+ continue;
case 'B':
npos = 0;
ubuf[0] = arg_complete &&
case 'n':
if (arg_complete)
(void)snprintf(ubuf, sizeof(ubuf), "%d",
- roff_getregn(r, stnam, naml));
+ roff_getregn(r, stnam, naml, sign));
else
ubuf[0] = '\0';
break;
}
if (res == NULL) {
- mandoc_vmsg(MANDOCERR_STR_UNDEF,
- r->parse, ln, (int)(stesc - buf->buf),
- "%.*s", (int)naml, stnam);
+ if (stesc[1] == '*')
+ mandoc_vmsg(MANDOCERR_STR_UNDEF,
+ 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,
/*
* Process text streams.
*/
-static enum rofferr
+static int
roff_parsetext(struct roff *r, struct buf *buf, int pos, int *offs)
{
size_t sz;
return ROFF_CONT;
}
-enum rofferr
+int
roff_parseln(struct roff *r, int ln, struct buf *buf, int *offs)
{
enum roff_tok t;
- enum rofferr e;
+ int e;
int pos; /* parse point */
int spos; /* saved parse point for messages */
int ppos; /* original offset in buf->buf */
/* Expand some escape sequences. */
e = roff_res(r, buf, ln, pos);
- if (e == ROFF_IGN || e == ROFF_APPEND)
+ if ((e & ROFF_MASK) == ROFF_IGN)
return e;
assert(e == ROFF_CONT);
if (r->last != NULL && ! ctl) {
t = r->last->tok;
e = (*roffs[t].text)(r, t, buf, ln, pos, pos, offs);
- if (e == ROFF_IGN)
+ if ((e & ROFF_MASK) == ROFF_IGN)
return e;
- assert(e == ROFF_CONT);
+ e &= ~ROFF_MASK;
+ } else
+ e = ROFF_IGN;
+ if (r->eqn != NULL && strncmp(buf->buf + ppos, ".EN", 3)) {
+ eqn_read(r->eqn, buf->buf + ppos);
+ return e;
+ }
+ if (r->tbl != NULL && (ctl == 0 || buf->buf[pos] == '\0')) {
+ tbl_read(r->tbl, ln, buf->buf, ppos);
+ roff_addtbl(r->man, ln, r->tbl);
+ return e;
}
- if (r->eqn != NULL)
- return eqn_read(&r->eqn, ln, buf->buf, ppos, offs);
- if (r->tbl != NULL && ( ! ctl || buf->buf[pos] == '\0'))
- return tbl_read(r->tbl, ln, buf->buf, ppos);
if ( ! ctl)
- return roff_parsetext(r, buf, pos, offs);
+ return roff_parsetext(r, buf, pos, offs) | e;
/* Skip empty request lines. */
pos++;
while (buf->buf[pos] == ' ')
pos++;
- return tbl_read(r->tbl, ln, buf->buf, pos);
+ tbl_read(r->tbl, ln, buf->buf, pos);
+ roff_addtbl(r->man, ln, r->tbl);
+ return ROFF_IGN;
}
/* For now, let high level macros abort .ce mode. */
if (ctl && roffce_node != NULL &&
- (t == TOKEN_NONE || t == ROFF_EQ || t == ROFF_TS)) {
+ (t == TOKEN_NONE || t == ROFF_Dd || t == ROFF_EQ ||
+ t == ROFF_TH || t == ROFF_TS)) {
r->man->last = roffce_node;
r->man->next = ROFF_NEXT_SIBLING;
roffce_lines = 0;
return (*roffs[t].proc)(r, t, buf, ln, spos, pos, offs);
}
+/*
+ * Internal interface function to tell the roff parser that execution
+ * of the current macro ended. This is required because macro
+ * definitions usually do not end with a .return request.
+ */
void
-roff_endparse(struct roff *r)
+roff_userret(struct roff *r)
{
+ struct mctx *ctx;
+ int i;
+
+ assert(r->mstackpos >= 0);
+ ctx = r->mstack + r->mstackpos;
+ for (i = 0; i < ctx->argc; i++)
+ free(ctx->argv[i]);
+ ctx->argc = 0;
+ r->mstackpos--;
+}
- if (r->last)
+void
+roff_endparse(struct roff *r)
+{
+ if (r->last != NULL)
mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,
r->last->line, r->last->col,
roff_name[r->last->tok]);
- if (r->eqn) {
+ if (r->eqn != NULL) {
mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,
- r->eqn->eqn.ln, r->eqn->eqn.pos, "EQ");
- eqn_end(&r->eqn);
+ r->eqn->node->line, r->eqn->node->pos, "EQ");
+ eqn_parse(r->eqn);
+ r->eqn = NULL;
}
- if (r->tbl) {
- mandoc_msg(MANDOCERR_BLK_NOEND, r->parse,
- r->tbl->line, r->tbl->pos, "TS");
- tbl_end(&r->tbl);
+ if (r->tbl != NULL) {
+ tbl_end(r->tbl, 1);
+ r->tbl = NULL;
}
}
char *cp;
const char *mac;
size_t maclen;
+ int deftype;
enum roff_tok t;
cp = buf + *pos;
mac = cp;
maclen = roff_getname(r, &cp, ln, ppos);
- t = (r->current_string = roff_getstrn(r, mac, maclen)) ?
- ROFF_USERDEF :
- (r->current_string = roff_getrenn(r, mac, maclen)) ?
- ROFF_RENAMED : roffhash_find(r->reqtab, mac, maclen);
-
+ deftype = ROFFDEF_USER | ROFFDEF_REN;
+ r->current_string = roff_getstrn(r, mac, maclen, &deftype);
+ switch (deftype) {
+ case ROFFDEF_USER:
+ t = ROFF_USERDEF;
+ break;
+ case ROFFDEF_REN:
+ t = ROFF_RENAMED;
+ break;
+ default:
+ t = roffhash_find(r->reqtab, mac, maclen);
+ break;
+ }
if (t != TOKEN_NONE)
*pos = cp - buf;
-
+ else if (deftype == ROFFDEF_UNDEF) {
+ /* Using an undefined macro defines it to be empty. */
+ roff_setstrn(&r->strtab, mac, maclen, "", 0, 0);
+ roff_setstrn(&r->rentab, mac, maclen, NULL, 0, 0);
+ }
return t;
}
/* --- handling of request blocks ----------------------------------------- */
-static enum rofferr
+static int
roff_cblock(ROFF_ARGS)
{
}
-static void
+static int
roffnode_cleanscope(struct roff *r)
{
+ int inloop;
- while (r->last) {
+ inloop = 0;
+ while (r->last != NULL) {
if (--r->last->endspan != 0)
break;
- roffnode_pop(r);
+ inloop += roffnode_pop(r);
}
+ return inloop;
}
-static void
+static int
roff_ccond(struct roff *r, int ln, int ppos)
{
-
if (NULL == r->last) {
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
ln, ppos, "\\}");
- return;
+ return 0;
}
switch (r->last->tok) {
case ROFF_el:
case ROFF_ie:
case ROFF_if:
+ case ROFF_while:
break;
default:
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
ln, ppos, "\\}");
- return;
+ return 0;
}
if (r->last->endspan > -1) {
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
ln, ppos, "\\}");
- return;
+ return 0;
}
- roffnode_pop(r);
- roffnode_cleanscope(r);
- return;
+ return roffnode_pop(r) + roffnode_cleanscope(r);
}
-static enum rofferr
+static int
roff_block(ROFF_ARGS)
{
- const char *name;
- char *iname, *cp;
- size_t namesz;
+ const char *name, *value;
+ char *call, *cp, *iname, *rname;
+ size_t csz, namesz, rsz;
+ int deftype;
/* Ignore groff compatibility mode for now. */
/* Resolve the macro name argument if it is indirect. */
if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) {
- if ((name = roff_getstrn(r, iname, namesz)) == NULL) {
+ deftype = ROFFDEF_USER;
+ name = roff_getstrn(r, iname, namesz, &deftype);
+ if (name == NULL) {
mandoc_vmsg(MANDOCERR_STR_UNDEF,
r->parse, ln, (int)(iname - buf->buf),
"%.*s", (int)namesz, iname);
if (tok == ROFF_de || tok == ROFF_dei) {
roff_setstrn(&r->strtab, name, namesz, "", 0, 0);
roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
+ } else if (tok == ROFF_am || tok == ROFF_ami) {
+ deftype = ROFFDEF_ANY;
+ value = roff_getstrn(r, iname, namesz, &deftype);
+ switch (deftype) { /* Before appending, ... */
+ case ROFFDEF_PRE: /* copy predefined to user-defined. */
+ roff_setstrn(&r->strtab, name, namesz,
+ value, strlen(value), 0);
+ break;
+ case ROFFDEF_REN: /* call original standard macro. */
+ csz = mandoc_asprintf(&call, ".%.*s \\$* \\\"\n",
+ (int)strlen(value), value);
+ roff_setstrn(&r->strtab, name, namesz, call, csz, 0);
+ roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
+ free(call);
+ break;
+ case ROFFDEF_STD: /* rename and call standard macro. */
+ rsz = mandoc_asprintf(&rname, "__%s_renamed", name);
+ roff_setstrn(&r->rentab, rname, rsz, name, namesz, 0);
+ csz = mandoc_asprintf(&call, ".%.*s \\$* \\\"\n",
+ (int)rsz, rname);
+ roff_setstrn(&r->strtab, name, namesz, call, csz, 0);
+ free(call);
+ free(rname);
+ break;
+ default:
+ break;
+ }
}
if (*cp == '\0')
/* Resolve the end marker if it is indirect. */
if (namesz && (tok == ROFF_dei || tok == ROFF_ami)) {
- if ((name = roff_getstrn(r, iname, namesz)) == NULL) {
+ deftype = ROFFDEF_USER;
+ name = roff_getstrn(r, iname, namesz, &deftype);
+ if (name == NULL) {
mandoc_vmsg(MANDOCERR_STR_UNDEF,
r->parse, ln, (int)(iname - buf->buf),
"%.*s", (int)namesz, iname);
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_block_sub(ROFF_ARGS)
{
enum roff_tok t;
return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs);
}
-static enum rofferr
+static int
roff_block_text(ROFF_ARGS)
{
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_cond_sub(ROFF_ARGS)
{
- enum roff_tok t;
char *ep;
- int rr;
+ int endloop, irc, rr;
+ enum roff_tok t;
+ irc = ROFF_IGN;
rr = r->last->rule;
- roffnode_cleanscope(r);
- 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 (t != TOKEN_NONE && (rr || roffs[t].flags & ROFFMAC_STRUCT))
- return (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs);
+ endloop = tok != ROFF_while ? ROFF_IGN :
+ rr ? ROFF_LOOPCONT : ROFF_LOOPEXIT;
+ if (roffnode_cleanscope(r))
+ irc |= endloop;
/*
* If `\}' occurs on a macro line without a preceding macro,
if (ep[0] == '\\' && ep[1] == '}')
rr = 0;
- /* Always check for the closing delimiter `\}'. */
+ /*
+ * The closing delimiter `\}' rewinds the conditional scope
+ * but is otherwise ignored when interpreting the line.
+ */
while ((ep = strchr(ep, '\\')) != NULL) {
- if (*(++ep) == '}') {
- *ep = '&';
- roff_ccond(r, ln, ep - buf->buf - 1);
- }
- if (*ep != '\0')
+ switch (ep[1]) {
+ case '}':
+ memmove(ep, ep + 2, strlen(ep + 2) + 1);
+ if (roff_ccond(r, ln, ep - buf->buf))
+ irc |= endloop;
+ break;
+ case '\0':
++ep;
+ break;
+ default:
+ ep += 2;
+ break;
+ }
}
- return rr ? ROFF_CONT : ROFF_IGN;
+
+ /*
+ * Fully handle known macros when they are structurally
+ * required or when the conditional evaluated to true.
+ */
+
+ t = roff_parse(r, buf->buf, &pos, ln, ppos);
+ irc |= t != TOKEN_NONE && (rr || roffs[t].flags & ROFFMAC_STRUCT) ?
+ (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs) :
+ rr ? ROFF_CONT : ROFF_IGN;
+ return irc;
}
-static enum rofferr
+static int
roff_cond_text(ROFF_ARGS)
{
char *ep;
- int rr;
+ int endloop, irc, rr;
+ irc = ROFF_IGN;
rr = r->last->rule;
- roffnode_cleanscope(r);
+ endloop = tok != ROFF_while ? ROFF_IGN :
+ rr ? ROFF_LOOPCONT : ROFF_LOOPEXIT;
+ if (roffnode_cleanscope(r))
+ irc |= endloop;
+
+ /*
+ * If `\}' occurs on a text line with neither preceding
+ * nor following characters, drop the line completely.
+ */
ep = buf->buf + pos;
+ if (strcmp(ep, "\\}") == 0)
+ rr = 0;
+
+ /*
+ * The closing delimiter `\}' rewinds the conditional scope
+ * but is otherwise ignored when interpreting the line.
+ */
+
while ((ep = strchr(ep, '\\')) != NULL) {
- if (*(++ep) == '}') {
- *ep = '&';
- roff_ccond(r, ln, ep - buf->buf - 1);
- }
- if (*ep != '\0')
+ switch (ep[1]) {
+ case '}':
+ memmove(ep, ep + 2, strlen(ep + 2) + 1);
+ if (roff_ccond(r, ln, ep - buf->buf))
+ irc |= endloop;
+ break;
+ case '\0':
++ep;
+ break;
+ default:
+ ep += 2;
+ break;
+ }
}
- return rr ? ROFF_CONT : ROFF_IGN;
+ if (rr)
+ irc |= ROFF_CONT;
+ return irc;
}
/* --- handling of numeric and conditional expressions -------------------- */
static int
roff_evalcond(struct roff *r, int ln, char *v, int *pos)
{
- char *cp, *name;
- size_t sz;
- int number, savepos, istrue, wanttrue;
+ const char *start, *end;
+ char *cp, *name;
+ size_t sz;
+ int deftype, len, number, savepos, istrue, wanttrue;
if ('!' == v[*pos]) {
wanttrue = 0;
case 'o':
(*pos)++;
return wanttrue;
- case 'c':
case 'e':
case 't':
case 'v':
(*pos)++;
return !wanttrue;
+ case 'c':
+ do {
+ (*pos)++;
+ } while (v[*pos] == ' ');
+
+ /*
+ * Quirk for groff compatibility:
+ * The horizontal tab is neither available nor unavailable.
+ */
+
+ if (v[*pos] == '\t') {
+ (*pos)++;
+ return 0;
+ }
+
+ /* Printable ASCII characters are available. */
+
+ if (v[*pos] != '\\') {
+ (*pos)++;
+ return wanttrue;
+ }
+
+ end = v + ++*pos;
+ switch (mandoc_escape(&end, &start, &len)) {
+ case ESCAPE_SPECIAL:
+ istrue = mchars_spec2cp(start, len) != -1;
+ break;
+ case ESCAPE_UNICODE:
+ istrue = 1;
+ break;
+ case ESCAPE_NUMBERED:
+ istrue = mchars_num2char(start, len) != -1;
+ break;
+ default:
+ istrue = !wanttrue;
+ break;
+ }
+ *pos = end - v;
+ return istrue == wanttrue;
case 'd':
case 'r':
cp = v + *pos + 1;
cp++;
name = cp;
sz = roff_getname(r, &cp, ln, cp - v);
- istrue = sz && (v[*pos] == 'r' ? roff_hasregn(r, name, sz) :
- (roff_getstrn(r, name, sz) != NULL ||
- roff_getrenn(r, name, sz) != NULL));
+ if (sz == 0)
+ istrue = 0;
+ else if (v[*pos] == 'r')
+ istrue = roff_hasregn(r, name, sz);
+ else {
+ deftype = ROFFDEF_ANY;
+ roff_getstrn(r, name, sz, &deftype);
+ istrue = !!deftype;
+ }
*pos = cp - v;
return istrue == wanttrue;
default:
return 0;
}
-static enum rofferr
+static int
roff_line_ignore(ROFF_ARGS)
{
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_insec(ROFF_ARGS)
{
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_unsupp(ROFF_ARGS)
{
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_cond(ROFF_ARGS)
{
+ int irc;
roffnode_push(r, tok, NULL, ln, ppos);
* Determine scope.
* If there is nothing on the line after the conditional,
* not even whitespace, use next-line scope.
+ * Except that .while does not support next-line scope.
*/
- if (buf->buf[pos] == '\0') {
+ if (buf->buf[pos] == '\0' && tok != ROFF_while) {
r->last->endspan = 2;
goto out;
}
out:
*offs = pos;
- return ROFF_RERUN;
+ irc = ROFF_RERUN;
+ if (tok == ROFF_while)
+ irc |= ROFF_WHILE;
+ return irc;
}
-static enum rofferr
+static int
roff_ds(ROFF_ARGS)
{
char *string;
void
roff_setreg(struct roff *r, const char *name, int val, char sign)
+{
+ roff_setregn(r, name, strlen(name), val, sign, INT_MIN);
+}
+
+static void
+roff_setregn(struct roff *r, const char *name, size_t len,
+ int val, char sign, int step)
{
struct roffreg *reg;
/* Search for an existing register with the same name. */
reg = r->regtab;
- while (reg && strcmp(name, reg->key.p))
+ while (reg != NULL && (reg->key.sz != len ||
+ strncmp(reg->key.p, name, len) != 0))
reg = reg->next;
if (NULL == reg) {
/* Create a new register. */
reg = mandoc_malloc(sizeof(struct roffreg));
- reg->key.p = mandoc_strdup(name);
- reg->key.sz = strlen(name);
+ reg->key.p = mandoc_strndup(name, len);
+ reg->key.sz = len;
reg->val = 0;
+ reg->step = 0;
reg->next = r->regtab;
r->regtab = reg;
}
reg->val -= val;
else
reg->val = val;
+ if (step != INT_MIN)
+ reg->step = step;
}
/*
switch (*name) {
case '$': /* Number of arguments of the last macro evaluated. */
- return r->argc;
+ return r->mstackpos < 0 ? 0 : r->mstack[r->mstackpos].argc;
case 'A': /* ASCII approximation mode is always off. */
return 0;
case 'g': /* Groff compatibility mode is always on. */
}
int
-roff_getreg(const struct roff *r, const char *name)
+roff_getreg(struct roff *r, const char *name)
{
- struct roffreg *reg;
- int val;
-
- if ('.' == name[0] && '\0' != name[1] && '\0' == name[2]) {
- val = roff_getregro(r, name + 1);
- if (-1 != val)
- return val;
- }
-
- for (reg = r->regtab; reg; reg = reg->next)
- if (0 == strcmp(name, reg->key.p))
- return reg->val;
-
- return 0;
+ return roff_getregn(r, name, strlen(name), '\0');
}
static int
-roff_getregn(const struct roff *r, const char *name, size_t len)
+roff_getregn(struct roff *r, const char *name, size_t len, char sign)
{
struct roffreg *reg;
int val;
return val;
}
- for (reg = r->regtab; reg; reg = reg->next)
+ for (reg = r->regtab; reg; reg = reg->next) {
if (len == reg->key.sz &&
- 0 == strncmp(name, reg->key.p, len))
+ 0 == strncmp(name, reg->key.p, len)) {
+ switch (sign) {
+ case '+':
+ reg->val += reg->step;
+ break;
+ case '-':
+ reg->val -= reg->step;
+ break;
+ default:
+ break;
+ }
return reg->val;
+ }
+ }
+ roff_setregn(r, name, len, 0, '\0', INT_MIN);
return 0;
}
}
}
-static enum rofferr
+static int
roff_nr(ROFF_ARGS)
{
- char *key, *val;
+ char *key, *val, *step;
size_t keysz;
- int iv;
+ int iv, is, len;
char sign;
key = val = buf->buf + pos;
keysz = roff_getname(r, &val, ln, pos);
if (key[keysz] == '\\')
return ROFF_IGN;
- key[keysz] = '\0';
sign = *val;
if (sign == '+' || sign == '-')
val++;
- if (roff_evalnum(r, ln, val, NULL, &iv, ROFFNUM_SCALE))
- roff_setreg(r, key, iv, sign);
+ len = 0;
+ if (roff_evalnum(r, ln, val, &len, &iv, ROFFNUM_SCALE) == 0)
+ return ROFF_IGN;
+ step = val + len;
+ while (isspace((unsigned char)*step))
+ step++;
+ if (roff_evalnum(r, ln, step, NULL, &is, 0) == 0)
+ is = INT_MIN;
+
+ roff_setregn(r, key, keysz, iv, sign, is);
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_rr(ROFF_ARGS)
{
struct roffreg *reg, **prev;
/* --- handler functions for roff requests -------------------------------- */
-static enum rofferr
+static int
roff_rm(ROFF_ARGS)
{
const char *name;
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_it(ROFF_ARGS)
{
int iv;
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_Dd(ROFF_ARGS)
{
- const char *const *cp;
-
- 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;
-}
-
-static enum rofferr
-roff_TH(ROFF_ARGS)
-{
- const char *const *cp;
-
- 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;
+ int mask;
+ enum roff_tok t, te;
+ switch (tok) {
+ case ROFF_Dd:
+ tok = MDOC_Dd;
+ te = MDOC_MAX;
+ if (r->format == 0)
+ r->format = MPARSE_MDOC;
+ mask = MPARSE_MDOC | MPARSE_QUICK;
+ break;
+ case ROFF_TH:
+ tok = MAN_TH;
+ te = MAN_MAX;
+ if (r->format == 0)
+ r->format = MPARSE_MAN;
+ mask = MPARSE_QUICK;
+ break;
+ default:
+ abort();
+ }
+ if ((r->options & mask) == 0)
+ for (t = tok; t < te; t++)
+ roff_setstr(r, roff_name[t], NULL, 0);
return ROFF_CONT;
}
-static enum rofferr
+static int
roff_TE(ROFF_ARGS)
{
-
- if (NULL == r->tbl)
+ if (r->tbl == NULL) {
mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse,
ln, ppos, "TE");
- else if ( ! tbl_end(&r->tbl)) {
+ return ROFF_IGN;
+ }
+ if (tbl_end(r->tbl, 0) == 0) {
+ r->tbl = NULL;
free(buf->buf);
buf->buf = mandoc_strdup(".sp");
buf->sz = 4;
+ *offs = 0;
return ROFF_REPARSE;
}
+ r->tbl = NULL;
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_T_(ROFF_ARGS)
{
/*
* Handle in-line equation delimiters.
*/
-static enum rofferr
+static int
roff_eqndelim(struct roff *r, struct buf *buf, int pos)
{
char *cp1, *cp2;
return ROFF_REPARSE;
}
-static enum rofferr
+static int
roff_EQ(ROFF_ARGS)
{
- struct eqn_node *e;
-
- assert(r->eqn == NULL);
- e = eqn_alloc(ppos, ln, r->parse);
+ struct roff_node *n;
- 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;
+ if (r->man->macroset == MACROSET_MAN)
+ man_breakscope(r->man, ROFF_EQ);
+ n = roff_node_alloc(r->man, ln, ppos, ROFFT_EQN, TOKEN_NONE);
+ if (ln > r->man->last->line)
+ n->flags |= NODE_LINE;
+ n->eqn = mandoc_calloc(1, sizeof(*n->eqn));
+ n->eqn->expectargs = UINT_MAX;
+ roff_node_append(r->man, n);
+ r->man->next = ROFF_NEXT_SIBLING;
- r->eqn = r->last_eqn = e;
+ assert(r->eqn == NULL);
+ if (r->last_eqn == NULL)
+ r->last_eqn = eqn_alloc(r->parse);
+ else
+ eqn_reset(r->last_eqn);
+ r->eqn = r->last_eqn;
+ r->eqn->node = n;
if (buf->buf[pos] != '\0')
mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_EN(ROFF_ARGS)
{
-
- mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, ln, ppos, "EN");
+ if (r->eqn != NULL) {
+ eqn_parse(r->eqn);
+ r->eqn = NULL;
+ } else
+ mandoc_msg(MANDOCERR_BLK_NOTOPEN, r->parse, ln, ppos, "EN");
+ if (buf->buf[pos] != '\0')
+ mandoc_vmsg(MANDOCERR_ARG_SKIP, r->parse, ln, pos,
+ "EN %s", buf->buf + pos);
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_TS(ROFF_ARGS)
{
- struct tbl_node *tbl;
-
- if (r->tbl) {
+ if (r->tbl != NULL) {
mandoc_msg(MANDOCERR_BLK_BROKEN, r->parse,
ln, ppos, "TS breaks TS");
- tbl_end(&r->tbl);
+ tbl_end(r->tbl, 0);
}
-
- tbl = tbl_alloc(ppos, ln, r->parse);
-
- if (r->last_tbl)
- r->last_tbl->next = tbl;
- else
- r->first_tbl = r->last_tbl = tbl;
-
- r->tbl = r->last_tbl = tbl;
+ r->tbl = tbl_alloc(ppos, ln, r->parse, r->last_tbl);
+ if (r->last_tbl == NULL)
+ r->first_tbl = r->tbl;
+ r->last_tbl = r->tbl;
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_onearg(ROFF_ARGS)
{
struct roff_node *n;
int npos;
if (r->man->flags & (MAN_BLINE | MAN_ELINE) &&
- (tok == ROFF_sp || tok == ROFF_ti))
+ (tok == ROFF_ce || tok == ROFF_rj || tok == ROFF_sp ||
+ tok == ROFF_ti))
man_breakscope(r->man, tok);
if (roffce_node != NULL && (tok == ROFF_ce || tok == ROFF_rj)) {
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_manyarg(ROFF_ARGS)
{
struct roff_node *n;
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_als(ROFF_ARGS)
{
char *oldn, *newn, *end, *value;
if (oldsz == 0)
return ROFF_IGN;
- valsz = mandoc_asprintf(&value, ".%.*s \\$*\n", (int)oldsz, oldn);
+ valsz = mandoc_asprintf(&value, ".%.*s \\$@\\\"\n",
+ (int)oldsz, oldn);
roff_setstrn(&r->strtab, newn, newsz, value, valsz, 0);
roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
free(value);
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_br(ROFF_ARGS)
{
if (r->man->flags & (MAN_BLINE | MAN_ELINE))
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_cc(ROFF_ARGS)
{
const char *p;
return ROFF_IGN;
}
-static enum rofferr
+static int
+roff_char(ROFF_ARGS)
+{
+ const char *p, *kp, *vp;
+ size_t ksz, vsz;
+ int font;
+
+ /* Parse the character to be replaced. */
+
+ kp = buf->buf + pos;
+ p = kp + 1;
+ if (*kp == '\0' || (*kp == '\\' &&
+ mandoc_escape(&p, NULL, NULL) != ESCAPE_SPECIAL) ||
+ (*p != ' ' && *p != '\0')) {
+ mandoc_vmsg(MANDOCERR_CHAR_ARG, r->parse,
+ ln, pos, "char %s", kp);
+ return ROFF_IGN;
+ }
+ ksz = p - kp;
+ while (*p == ' ')
+ p++;
+
+ /*
+ * If the replacement string contains a font escape sequence,
+ * we have to restore the font at the end.
+ */
+
+ vp = p;
+ vsz = strlen(p);
+ font = 0;
+ while (*p != '\0') {
+ if (*p++ != '\\')
+ continue;
+ switch (mandoc_escape(&p, NULL, NULL)) {
+ case ESCAPE_FONT:
+ case ESCAPE_FONTROMAN:
+ case ESCAPE_FONTITALIC:
+ case ESCAPE_FONTBOLD:
+ case ESCAPE_FONTBI:
+ case ESCAPE_FONTCW:
+ case ESCAPE_FONTPREV:
+ font++;
+ break;
+ default:
+ break;
+ }
+ }
+ if (font > 1)
+ mandoc_msg(MANDOCERR_CHAR_FONT, r->parse,
+ ln, vp - buf->buf, vp);
+
+ /*
+ * Approximate the effect of .char using the .tr tables.
+ * XXX In groff, .char and .tr interact differently.
+ */
+
+ if (ksz == 1) {
+ if (r->xtab == NULL)
+ r->xtab = mandoc_calloc(128, sizeof(*r->xtab));
+ assert((unsigned int)*kp < 128);
+ free(r->xtab[(int)*kp].p);
+ r->xtab[(int)*kp].sz = mandoc_asprintf(&r->xtab[(int)*kp].p,
+ "%s%s", vp, font ? "\fP" : "");
+ } else {
+ roff_setstrn(&r->xmbtab, kp, ksz, vp, vsz, 0);
+ if (font)
+ roff_setstrn(&r->xmbtab, kp, ksz, "\\fP", 3, 1);
+ }
+ return ROFF_IGN;
+}
+
+static int
roff_ec(ROFF_ARGS)
{
const char *p;
return ROFF_IGN;
}
-static enum rofferr
+static int
roff_eo(ROFF_ARGS)
{
r->escape = '\0';
return ROFF_IGN;
}
-static enum rofferr
+static int
+roff_nop(ROFF_ARGS)
+{
+ while (buf->buf[pos] == ' ')
+ pos++;
+ *offs = pos;
+ return ROFF_RERUN;
+}
+
+static int
roff_tr(ROFF_ARGS)
{
const char *p, *first, *second;
return ROFF_IGN;
}
-static enum rofferr
+/*
+ * Implementation of the .return request.
+ * There is no need to call roff_userret() from here.
+ * The read module will call that after rewinding the reader stack
+ * to the place from where the current macro was called.
+ */
+static int
+roff_return(ROFF_ARGS)
+{
+ if (r->mstackpos >= 0)
+ return ROFF_IGN | ROFF_USERRET;
+
+ mandoc_msg(MANDOCERR_REQ_NOMAC, r->parse, ln, ppos, "return");
+ return ROFF_IGN;
+}
+
+static int
roff_rn(ROFF_ARGS)
{
const char *value;
char *oldn, *newn, *end;
size_t oldsz, newsz;
+ int deftype;
oldn = newn = buf->buf + pos;
if (*oldn == '\0')
if (newsz == 0)
return ROFF_IGN;
- /*
- * Rename a user-defined macro bearing the old name,
- * overriding an existing renamed high-level macro
- * bearing the new name, if that exists.
- */
-
- if ((value = roff_getstrn(r, oldn, oldsz)) != NULL) {
+ deftype = ROFFDEF_ANY;
+ value = roff_getstrn(r, oldn, oldsz, &deftype);
+ switch (deftype) {
+ case ROFFDEF_USER:
roff_setstrn(&r->strtab, newn, newsz, value, strlen(value), 0);
roff_setstrn(&r->strtab, oldn, oldsz, NULL, 0, 0);
roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
- return ROFF_IGN;
- }
-
- /*
- * Rename a high-level macro bearing the old name,
- * either renaming it a second time if it was already
- * renamed before, or renaming it for the first time.
- * In both cases, override an existing user-defined
- * macro bearing the new name, if that exists.
- */
-
- if ((value = roff_getrenn(r, oldn, oldsz)) != NULL) {
+ break;
+ case ROFFDEF_PRE:
+ roff_setstrn(&r->strtab, newn, newsz, value, strlen(value), 0);
+ roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
+ break;
+ case ROFFDEF_REN:
roff_setstrn(&r->rentab, newn, newsz, value, strlen(value), 0);
roff_setstrn(&r->rentab, oldn, oldsz, NULL, 0, 0);
- } else
+ roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
+ break;
+ case ROFFDEF_STD:
roff_setstrn(&r->rentab, newn, newsz, oldn, oldsz, 0);
- roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
+ roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
+ break;
+ default:
+ roff_setstrn(&r->strtab, newn, newsz, NULL, 0, 0);
+ roff_setstrn(&r->rentab, newn, newsz, NULL, 0, 0);
+ break;
+ }
return ROFF_IGN;
}
-static enum rofferr
+static int
+roff_shift(ROFF_ARGS)
+{
+ struct mctx *ctx;
+ int levels, i;
+
+ levels = 1;
+ if (buf->buf[pos] != '\0' &&
+ roff_evalnum(r, ln, buf->buf, &pos, &levels, 0) == 0) {
+ mandoc_vmsg(MANDOCERR_CE_NONUM, r->parse,
+ ln, pos, "shift %s", buf->buf + pos);
+ levels = 1;
+ }
+ if (r->mstackpos < 0) {
+ mandoc_msg(MANDOCERR_REQ_NOMAC, r->parse, ln, ppos, "shift");
+ return ROFF_IGN;
+ }
+ ctx = r->mstack + r->mstackpos;
+ if (levels > ctx->argc) {
+ mandoc_vmsg(MANDOCERR_SHIFT, r->parse,
+ ln, pos, "%d, but max is %d", levels, ctx->argc);
+ levels = ctx->argc;
+ }
+ if (levels == 0)
+ return ROFF_IGN;
+ for (i = 0; i < levels; i++)
+ free(ctx->argv[i]);
+ ctx->argc -= levels;
+ for (i = 0; i < ctx->argc; i++)
+ ctx->argv[i] = ctx->argv[i + levels];
+ return ROFF_IGN;
+}
+
+static int
roff_so(ROFF_ARGS)
{
char *name, *cp;
/* --- user defined strings and macros ------------------------------------ */
-static enum rofferr
+static int
roff_userdef(ROFF_ARGS)
{
- const char *arg[16], *ap;
- char *cp, *n1, *n2;
- int expand_count, i, ib, ie;
- size_t asz, rsz;
+ struct mctx *ctx;
+ char *arg, *ap, *dst, *src;
+ size_t sz;
- /*
- * Collect pointers to macro argument strings
- * and NUL-terminate them.
- */
+ /* Initialize a new macro stack context. */
- r->argc = 0;
- cp = buf->buf + pos;
- for (i = 0; i < 16; i++) {
- if (*cp == '\0')
- arg[i] = "";
- else {
- arg[i] = mandoc_getarg(r->parse, &cp, ln, &pos);
- r->argc = i + 1;
- }
+ if (++r->mstackpos == r->mstacksz) {
+ r->mstack = mandoc_recallocarray(r->mstack,
+ r->mstacksz, r->mstacksz + 8, sizeof(*r->mstack));
+ r->mstacksz += 8;
}
+ ctx = r->mstack + r->mstackpos;
+ ctx->argsz = 0;
+ ctx->argc = 0;
+ ctx->argv = NULL;
/*
- * Expand macro arguments.
+ * Collect pointers to macro argument strings,
+ * NUL-terminating them and escaping quotes.
*/
- buf->sz = strlen(r->current_string) + 1;
- 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. */
-
- 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 -= 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.
- */
-
- 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);
+ src = buf->buf + pos;
+ while (*src != '\0') {
+ if (ctx->argc == ctx->argsz) {
+ ctx->argsz += 8;
+ ctx->argv = mandoc_reallocarray(ctx->argv,
+ ctx->argsz, sizeof(*ctx->argv));
}
-
- /* 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++ = ' ';
+ arg = mandoc_getarg(r->parse, &src, ln, &pos);
+ sz = 1; /* For the terminating NUL. */
+ for (ap = arg; *ap != '\0'; ap++)
+ sz += *ap == '"' ? 4 : 1;
+ ctx->argv[ctx->argc++] = dst = mandoc_malloc(sz);
+ for (ap = arg; *ap != '\0'; ap++) {
+ if (*ap == '"') {
+ memcpy(dst, "\\(dq", 4);
+ dst += 4;
+ } else
+ *dst++ = *ap;
}
+ *dst = '\0';
}
- /*
- * Replace the macro invocation
- * by the expanded macro.
- */
+ /* Replace the macro invocation by the macro definition. */
free(buf->buf);
- buf->buf = n1;
+ buf->buf = mandoc_strdup(r->current_string);
+ buf->sz = strlen(buf->buf) + 1;
*offs = 0;
return buf->sz > 1 && buf->buf[buf->sz - 2] == '\n' ?
- ROFF_REPARSE : ROFF_APPEND;
+ ROFF_REPARSE | ROFF_USERCALL : ROFF_IGN | ROFF_APPEND;
}
/*
* Calling a high-level macro that was renamed with .rn.
* r->current_string has already been set up by roff_parse().
*/
-static enum rofferr
+static int
roff_renamed(ROFF_ARGS)
{
char *nbuf;
- buf->sz = mandoc_asprintf(&nbuf, ".%s %s", r->current_string,
- buf->buf + pos) + 1;
+ buf->sz = mandoc_asprintf(&nbuf, ".%s%s%s", r->current_string,
+ buf->buf[pos] == '\0' ? "" : " ", buf->buf + pos) + 1;
free(buf->buf);
buf->buf = nbuf;
+ *offs = 0;
return ROFF_CONT;
}
roff_setstr(struct roff *r, const char *name, const char *string,
int append)
{
+ size_t namesz;
- roff_setstrn(&r->strtab, name, strlen(name), string,
+ namesz = strlen(name);
+ roff_setstrn(&r->strtab, name, namesz, string,
string ? strlen(string) : 0, append);
+ roff_setstrn(&r->rentab, name, namesz, NULL, 0, 0);
}
static void
}
static const char *
-roff_getstrn(const struct roff *r, const char *name, size_t len)
+roff_getstrn(struct roff *r, const char *name, size_t len,
+ int *deftype)
{
- const struct roffkv *n;
- int i;
+ const struct roffkv *n;
+ int found, i;
+ enum roff_tok tok;
- for (n = r->strtab; n; n = n->next)
- if (0 == strncmp(name, n->key.p, len) &&
- '\0' == n->key.p[(int)len])
+ found = 0;
+ for (n = r->strtab; n != NULL; n = n->next) {
+ if (strncmp(name, n->key.p, len) != 0 ||
+ n->key.p[len] != '\0' || n->val.p == NULL)
+ continue;
+ if (*deftype & ROFFDEF_USER) {
+ *deftype = ROFFDEF_USER;
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])
+ } else {
+ found = 1;
+ break;
+ }
+ }
+ for (n = r->rentab; n != NULL; n = n->next) {
+ if (strncmp(name, n->key.p, len) != 0 ||
+ n->key.p[len] != '\0' || n->val.p == NULL)
+ continue;
+ if (*deftype & ROFFDEF_REN) {
+ *deftype = ROFFDEF_REN;
+ return n->val.p;
+ } else {
+ found = 1;
+ break;
+ }
+ }
+ for (i = 0; i < PREDEFS_MAX; i++) {
+ if (strncmp(name, predefs[i].name, len) != 0 ||
+ predefs[i].name[len] != '\0')
+ continue;
+ if (*deftype & ROFFDEF_PRE) {
+ *deftype = ROFFDEF_PRE;
return predefs[i].str;
+ } else {
+ found = 1;
+ break;
+ }
+ }
+ if (r->man->macroset != MACROSET_MAN) {
+ for (tok = MDOC_Dd; tok < MDOC_MAX; tok++) {
+ if (strncmp(name, roff_name[tok], len) != 0 ||
+ roff_name[tok][len] != '\0')
+ continue;
+ if (*deftype & ROFFDEF_STD) {
+ *deftype = ROFFDEF_STD;
+ return NULL;
+ } else {
+ found = 1;
+ break;
+ }
+ }
+ }
+ if (r->man->macroset != MACROSET_MDOC) {
+ for (tok = MAN_TH; tok < MAN_MAX; tok++) {
+ if (strncmp(name, roff_name[tok], len) != 0 ||
+ roff_name[tok][len] != '\0')
+ continue;
+ if (*deftype & ROFFDEF_STD) {
+ *deftype = ROFFDEF_STD;
+ return NULL;
+ } else {
+ found = 1;
+ break;
+ }
+ }
+ }
- return NULL;
-}
+ if (found == 0 && *deftype != ROFFDEF_ANY) {
+ if (*deftype & ROFFDEF_REN) {
+ /*
+ * This might still be a request,
+ * so do not treat it as undefined yet.
+ */
+ *deftype = ROFFDEF_UNDEF;
+ return NULL;
+ }
-/*
- * Check whether *name is the renamed name of a high-level macro.
- * Return the standard name, or NULL if it is not.
- */
-static const char *
-roff_getrenn(const struct roff *r, const char *name, size_t len)
-{
- const struct roffkv *n;
+ /* Using an undefined string defines it to be empty. */
- for (n = r->rentab; n; n = n->next)
- if (0 == strncmp(name, n->key.p, len) &&
- '\0' == n->key.p[(int)len])
- return n->val.p;
+ roff_setstrn(&r->strtab, name, len, "", 0, 0);
+ roff_setstrn(&r->rentab, name, len, NULL, 0, 0);
+ }
+ *deftype = 0;
return NULL;
}
/* --- accessors and utility functions ------------------------------------ */
-const struct tbl_span *
-roff_span(const struct roff *r)
-{
-
- 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;
-}
-
/*
* Duplicate an input string, making the appropriate character
* conversations (as stipulated by `tr') along the way.
git.ckatri.com / mandoc.git / blobdiff