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freebsd-skq/mdoc_validate.c
Baptiste Daroussin d3c5aaa494 Import CVS snapshot of mandoc as of 20150302
2015-03-02 16:45:41 +00:00

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/* $Id: mdoc_validate.c,v 1.283 2015/02/23 13:55:55 schwarze Exp $ */
/*
* Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2010-2015 Ingo Schwarze <schwarze@openbsd.org>
* Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#ifndef OSNAME
#include <sys/utsname.h>
#endif
#include <assert.h>
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "mdoc.h"
#include "mandoc.h"
#include "mandoc_aux.h"
#include "libmdoc.h"
#include "libmandoc.h"
/* FIXME: .Bl -diag can't have non-text children in HEAD. */
#define PRE_ARGS struct mdoc *mdoc, struct mdoc_node *n
#define POST_ARGS struct mdoc *mdoc
enum check_ineq {
CHECK_LT,
CHECK_GT,
CHECK_EQ
};
typedef void (*v_pre)(PRE_ARGS);
typedef void (*v_post)(POST_ARGS);
struct valids {
v_pre pre;
v_post post;
};
static void check_text(struct mdoc *, int, int, char *);
static void check_argv(struct mdoc *,
struct mdoc_node *, struct mdoc_argv *);
static void check_args(struct mdoc *, struct mdoc_node *);
static int child_an(const struct mdoc_node *);
static enum mdoc_sec a2sec(const char *);
static size_t macro2len(enum mdoct);
static void rewrite_macro2len(char **);
static void post_an(POST_ARGS);
static void post_at(POST_ARGS);
static void post_bf(POST_ARGS);
static void post_bk(POST_ARGS);
static void post_bl(POST_ARGS);
static void post_bl_block(POST_ARGS);
static void post_bl_block_tag(POST_ARGS);
static void post_bl_head(POST_ARGS);
static void post_bx(POST_ARGS);
static void post_d1(POST_ARGS);
static void post_defaults(POST_ARGS);
static void post_dd(POST_ARGS);
static void post_dt(POST_ARGS);
static void post_en(POST_ARGS);
static void post_es(POST_ARGS);
static void post_eoln(POST_ARGS);
static void post_ex(POST_ARGS);
static void post_fa(POST_ARGS);
static void post_fn(POST_ARGS);
static void post_fname(POST_ARGS);
static void post_fo(POST_ARGS);
static void post_hyph(POST_ARGS);
static void post_ignpar(POST_ARGS);
static void post_it(POST_ARGS);
static void post_lb(POST_ARGS);
static void post_literal(POST_ARGS);
static void post_nd(POST_ARGS);
static void post_nm(POST_ARGS);
static void post_ns(POST_ARGS);
static void post_os(POST_ARGS);
static void post_par(POST_ARGS);
static void post_root(POST_ARGS);
static void post_rs(POST_ARGS);
static void post_sh(POST_ARGS);
static void post_sh_head(POST_ARGS);
static void post_sh_name(POST_ARGS);
static void post_sh_see_also(POST_ARGS);
static void post_sh_authors(POST_ARGS);
static void post_sm(POST_ARGS);
static void post_st(POST_ARGS);
static void post_vt(POST_ARGS);
static void pre_an(PRE_ARGS);
static void pre_bd(PRE_ARGS);
static void pre_bl(PRE_ARGS);
static void pre_dd(PRE_ARGS);
static void pre_display(PRE_ARGS);
static void pre_dt(PRE_ARGS);
static void pre_literal(PRE_ARGS);
static void pre_obsolete(PRE_ARGS);
static void pre_os(PRE_ARGS);
static void pre_par(PRE_ARGS);
static void pre_std(PRE_ARGS);
static const struct valids mdoc_valids[MDOC_MAX] = {
{ NULL, NULL }, /* Ap */
{ pre_dd, post_dd }, /* Dd */
{ pre_dt, post_dt }, /* Dt */
{ pre_os, post_os }, /* Os */
{ NULL, post_sh }, /* Sh */
{ NULL, post_ignpar }, /* Ss */
{ pre_par, post_par }, /* Pp */
{ pre_display, post_d1 }, /* D1 */
{ pre_literal, post_literal }, /* Dl */
{ pre_bd, post_literal }, /* Bd */
{ NULL, NULL }, /* Ed */
{ pre_bl, post_bl }, /* Bl */
{ NULL, NULL }, /* El */
{ pre_par, post_it }, /* It */
{ NULL, NULL }, /* Ad */
{ pre_an, post_an }, /* An */
{ NULL, post_defaults }, /* Ar */
{ NULL, NULL }, /* Cd */
{ NULL, NULL }, /* Cm */
{ NULL, NULL }, /* Dv */
{ NULL, NULL }, /* Er */
{ NULL, NULL }, /* Ev */
{ pre_std, post_ex }, /* Ex */
{ NULL, post_fa }, /* Fa */
{ NULL, NULL }, /* Fd */
{ NULL, NULL }, /* Fl */
{ NULL, post_fn }, /* Fn */
{ NULL, NULL }, /* Ft */
{ NULL, NULL }, /* Ic */
{ NULL, NULL }, /* In */
{ NULL, post_defaults }, /* Li */
{ NULL, post_nd }, /* Nd */
{ NULL, post_nm }, /* Nm */
{ NULL, NULL }, /* Op */
{ pre_obsolete, NULL }, /* Ot */
{ NULL, post_defaults }, /* Pa */
{ pre_std, NULL }, /* Rv */
{ NULL, post_st }, /* St */
{ NULL, NULL }, /* Va */
{ NULL, post_vt }, /* Vt */
{ NULL, NULL }, /* Xr */
{ NULL, NULL }, /* %A */
{ NULL, post_hyph }, /* %B */ /* FIXME: can be used outside Rs/Re. */
{ NULL, NULL }, /* %D */
{ NULL, NULL }, /* %I */
{ NULL, NULL }, /* %J */
{ NULL, post_hyph }, /* %N */
{ NULL, post_hyph }, /* %O */
{ NULL, NULL }, /* %P */
{ NULL, post_hyph }, /* %R */
{ NULL, post_hyph }, /* %T */ /* FIXME: can be used outside Rs/Re. */
{ NULL, NULL }, /* %V */
{ NULL, NULL }, /* Ac */
{ NULL, NULL }, /* Ao */
{ NULL, NULL }, /* Aq */
{ NULL, post_at }, /* At */
{ NULL, NULL }, /* Bc */
{ NULL, post_bf }, /* Bf */
{ NULL, NULL }, /* Bo */
{ NULL, NULL }, /* Bq */
{ NULL, NULL }, /* Bsx */
{ NULL, post_bx }, /* Bx */
{ pre_obsolete, NULL }, /* Db */
{ NULL, NULL }, /* Dc */
{ NULL, NULL }, /* Do */
{ NULL, NULL }, /* Dq */
{ NULL, NULL }, /* Ec */
{ NULL, NULL }, /* Ef */
{ NULL, NULL }, /* Em */
{ NULL, NULL }, /* Eo */
{ NULL, NULL }, /* Fx */
{ NULL, NULL }, /* Ms */
{ NULL, NULL }, /* No */
{ NULL, post_ns }, /* Ns */
{ NULL, NULL }, /* Nx */
{ NULL, NULL }, /* Ox */
{ NULL, NULL }, /* Pc */
{ NULL, NULL }, /* Pf */
{ NULL, NULL }, /* Po */
{ NULL, NULL }, /* Pq */
{ NULL, NULL }, /* Qc */
{ NULL, NULL }, /* Ql */
{ NULL, NULL }, /* Qo */
{ NULL, NULL }, /* Qq */
{ NULL, NULL }, /* Re */
{ NULL, post_rs }, /* Rs */
{ NULL, NULL }, /* Sc */
{ NULL, NULL }, /* So */
{ NULL, NULL }, /* Sq */
{ NULL, post_sm }, /* Sm */
{ NULL, post_hyph }, /* Sx */
{ NULL, NULL }, /* Sy */
{ NULL, NULL }, /* Tn */
{ NULL, NULL }, /* Ux */
{ NULL, NULL }, /* Xc */
{ NULL, NULL }, /* Xo */
{ NULL, post_fo }, /* Fo */
{ NULL, NULL }, /* Fc */
{ NULL, NULL }, /* Oo */
{ NULL, NULL }, /* Oc */
{ NULL, post_bk }, /* Bk */
{ NULL, NULL }, /* Ek */
{ NULL, post_eoln }, /* Bt */
{ NULL, NULL }, /* Hf */
{ pre_obsolete, NULL }, /* Fr */
{ NULL, post_eoln }, /* Ud */
{ NULL, post_lb }, /* Lb */
{ pre_par, post_par }, /* Lp */
{ NULL, NULL }, /* Lk */
{ NULL, post_defaults }, /* Mt */
{ NULL, NULL }, /* Brq */
{ NULL, NULL }, /* Bro */
{ NULL, NULL }, /* Brc */
{ NULL, NULL }, /* %C */
{ pre_obsolete, post_es }, /* Es */
{ pre_obsolete, post_en }, /* En */
{ NULL, NULL }, /* Dx */
{ NULL, NULL }, /* %Q */
{ NULL, post_par }, /* br */
{ NULL, post_par }, /* sp */
{ NULL, NULL }, /* %U */
{ NULL, NULL }, /* Ta */
{ NULL, NULL }, /* ll */
};
#define RSORD_MAX 14 /* Number of `Rs' blocks. */
static const enum mdoct rsord[RSORD_MAX] = {
MDOC__A,
MDOC__T,
MDOC__B,
MDOC__I,
MDOC__J,
MDOC__R,
MDOC__N,
MDOC__V,
MDOC__U,
MDOC__P,
MDOC__Q,
MDOC__C,
MDOC__D,
MDOC__O
};
static const char * const secnames[SEC__MAX] = {
NULL,
"NAME",
"LIBRARY",
"SYNOPSIS",
"DESCRIPTION",
"CONTEXT",
"IMPLEMENTATION NOTES",
"RETURN VALUES",
"ENVIRONMENT",
"FILES",
"EXIT STATUS",
"EXAMPLES",
"DIAGNOSTICS",
"COMPATIBILITY",
"ERRORS",
"SEE ALSO",
"STANDARDS",
"HISTORY",
"AUTHORS",
"CAVEATS",
"BUGS",
"SECURITY CONSIDERATIONS",
NULL
};
void
mdoc_valid_pre(struct mdoc *mdoc, struct mdoc_node *n)
{
v_pre p;
switch (n->type) {
case MDOC_TEXT:
if (n->sec != SEC_SYNOPSIS || n->parent->tok != MDOC_Fd)
check_text(mdoc, n->line, n->pos, n->string);
/* FALLTHROUGH */
case MDOC_TBL:
/* FALLTHROUGH */
case MDOC_EQN:
/* FALLTHROUGH */
case MDOC_ROOT:
return;
default:
break;
}
check_args(mdoc, n);
p = mdoc_valids[n->tok].pre;
if (*p)
(*p)(mdoc, n);
}
void
mdoc_valid_post(struct mdoc *mdoc)
{
struct mdoc_node *n;
v_post p;
n = mdoc->last;
if (n->flags & MDOC_VALID)
return;
n->flags |= MDOC_VALID | MDOC_ENDED;
switch (n->type) {
case MDOC_TEXT:
/* FALLTHROUGH */
case MDOC_EQN:
/* FALLTHROUGH */
case MDOC_TBL:
break;
case MDOC_ROOT:
post_root(mdoc);
break;
default:
/*
* Closing delimiters are not special at the
* beginning of a block, opening delimiters
* are not special at the end.
*/
if (n->child != NULL)
n->child->flags &= ~MDOC_DELIMC;
if (n->last != NULL)
n->last->flags &= ~MDOC_DELIMO;
/* Call the macro's postprocessor. */
p = mdoc_valids[n->tok].post;
if (*p)
(*p)(mdoc);
break;
}
}
static void
check_args(struct mdoc *mdoc, struct mdoc_node *n)
{
int i;
if (NULL == n->args)
return;
assert(n->args->argc);
for (i = 0; i < (int)n->args->argc; i++)
check_argv(mdoc, n, &n->args->argv[i]);
}
static void
check_argv(struct mdoc *mdoc, struct mdoc_node *n, struct mdoc_argv *v)
{
int i;
for (i = 0; i < (int)v->sz; i++)
check_text(mdoc, v->line, v->pos, v->value[i]);
}
static void
check_text(struct mdoc *mdoc, int ln, int pos, char *p)
{
char *cp;
if (MDOC_LITERAL & mdoc->flags)
return;
for (cp = p; NULL != (p = strchr(p, '\t')); p++)
mandoc_msg(MANDOCERR_FI_TAB, mdoc->parse,
ln, pos + (int)(p - cp), NULL);
}
static void
pre_display(PRE_ARGS)
{
struct mdoc_node *node;
if (MDOC_BLOCK != n->type)
return;
for (node = mdoc->last->parent; node; node = node->parent)
if (MDOC_BLOCK == node->type)
if (MDOC_Bd == node->tok)
break;
if (node)
mandoc_vmsg(MANDOCERR_BD_NEST,
mdoc->parse, n->line, n->pos,
"%s in Bd", mdoc_macronames[n->tok]);
}
static void
pre_bl(PRE_ARGS)
{
struct mdoc_argv *argv, *wa;
int i;
enum mdocargt mdoclt;
enum mdoc_list lt;
if (n->type != MDOC_BLOCK)
return;
/*
* First figure out which kind of list to use: bind ourselves to
* the first mentioned list type and warn about any remaining
* ones. If we find no list type, we default to LIST_item.
*/
wa = (n->args == NULL) ? NULL : n->args->argv;
mdoclt = MDOC_ARG_MAX;
for (i = 0; n->args && i < (int)n->args->argc; i++) {
argv = n->args->argv + i;
lt = LIST__NONE;
switch (argv->arg) {
/* Set list types. */
case MDOC_Bullet:
lt = LIST_bullet;
break;
case MDOC_Dash:
lt = LIST_dash;
break;
case MDOC_Enum:
lt = LIST_enum;
break;
case MDOC_Hyphen:
lt = LIST_hyphen;
break;
case MDOC_Item:
lt = LIST_item;
break;
case MDOC_Tag:
lt = LIST_tag;
break;
case MDOC_Diag:
lt = LIST_diag;
break;
case MDOC_Hang:
lt = LIST_hang;
break;
case MDOC_Ohang:
lt = LIST_ohang;
break;
case MDOC_Inset:
lt = LIST_inset;
break;
case MDOC_Column:
lt = LIST_column;
break;
/* Set list arguments. */
case MDOC_Compact:
if (n->norm->Bl.comp)
mandoc_msg(MANDOCERR_ARG_REP,
mdoc->parse, argv->line,
argv->pos, "Bl -compact");
n->norm->Bl.comp = 1;
break;
case MDOC_Width:
wa = argv;
if (0 == argv->sz) {
mandoc_msg(MANDOCERR_ARG_EMPTY,
mdoc->parse, argv->line,
argv->pos, "Bl -width");
n->norm->Bl.width = "0n";
break;
}
if (NULL != n->norm->Bl.width)
mandoc_vmsg(MANDOCERR_ARG_REP,
mdoc->parse, argv->line,
argv->pos, "Bl -width %s",
argv->value[0]);
rewrite_macro2len(argv->value);
n->norm->Bl.width = argv->value[0];
break;
case MDOC_Offset:
if (0 == argv->sz) {
mandoc_msg(MANDOCERR_ARG_EMPTY,
mdoc->parse, argv->line,
argv->pos, "Bl -offset");
break;
}
if (NULL != n->norm->Bl.offs)
mandoc_vmsg(MANDOCERR_ARG_REP,
mdoc->parse, argv->line,
argv->pos, "Bl -offset %s",
argv->value[0]);
rewrite_macro2len(argv->value);
n->norm->Bl.offs = argv->value[0];
break;
default:
continue;
}
if (LIST__NONE == lt)
continue;
mdoclt = argv->arg;
/* Check: multiple list types. */
if (LIST__NONE != n->norm->Bl.type) {
mandoc_vmsg(MANDOCERR_BL_REP,
mdoc->parse, n->line, n->pos,
"Bl -%s", mdoc_argnames[argv->arg]);
continue;
}
/* The list type should come first. */
if (n->norm->Bl.width ||
n->norm->Bl.offs ||
n->norm->Bl.comp)
mandoc_vmsg(MANDOCERR_BL_LATETYPE,
mdoc->parse, n->line, n->pos, "Bl -%s",
mdoc_argnames[n->args->argv[0].arg]);
n->norm->Bl.type = lt;
if (LIST_column == lt) {
n->norm->Bl.ncols = argv->sz;
n->norm->Bl.cols = (void *)argv->value;
}
}
/* Allow lists to default to LIST_item. */
if (LIST__NONE == n->norm->Bl.type) {
mandoc_msg(MANDOCERR_BL_NOTYPE, mdoc->parse,
n->line, n->pos, "Bl");
n->norm->Bl.type = LIST_item;
}
/*
* Validate the width field. Some list types don't need width
* types and should be warned about them. Others should have it
* and must also be warned. Yet others have a default and need
* no warning.
*/
switch (n->norm->Bl.type) {
case LIST_tag:
if (NULL == n->norm->Bl.width)
mandoc_msg(MANDOCERR_BL_NOWIDTH, mdoc->parse,
n->line, n->pos, "Bl -tag");
break;
case LIST_column:
/* FALLTHROUGH */
case LIST_diag:
/* FALLTHROUGH */
case LIST_ohang:
/* FALLTHROUGH */
case LIST_inset:
/* FALLTHROUGH */
case LIST_item:
if (n->norm->Bl.width)
mandoc_vmsg(MANDOCERR_BL_SKIPW, mdoc->parse,
wa->line, wa->pos, "Bl -%s",
mdoc_argnames[mdoclt]);
break;
case LIST_bullet:
/* FALLTHROUGH */
case LIST_dash:
/* FALLTHROUGH */
case LIST_hyphen:
if (NULL == n->norm->Bl.width)
n->norm->Bl.width = "2n";
break;
case LIST_enum:
if (NULL == n->norm->Bl.width)
n->norm->Bl.width = "3n";
break;
default:
break;
}
pre_par(mdoc, n);
}
static void
pre_bd(PRE_ARGS)
{
struct mdoc_argv *argv;
int i;
enum mdoc_disp dt;
pre_literal(mdoc, n);
if (n->type != MDOC_BLOCK)
return;
for (i = 0; n->args && i < (int)n->args->argc; i++) {
argv = n->args->argv + i;
dt = DISP__NONE;
switch (argv->arg) {
case MDOC_Centred:
dt = DISP_centered;
break;
case MDOC_Ragged:
dt = DISP_ragged;
break;
case MDOC_Unfilled:
dt = DISP_unfilled;
break;
case MDOC_Filled:
dt = DISP_filled;
break;
case MDOC_Literal:
dt = DISP_literal;
break;
case MDOC_File:
mandoc_msg(MANDOCERR_BD_FILE, mdoc->parse,
n->line, n->pos, NULL);
break;
case MDOC_Offset:
if (0 == argv->sz) {
mandoc_msg(MANDOCERR_ARG_EMPTY,
mdoc->parse, argv->line,
argv->pos, "Bd -offset");
break;
}
if (NULL != n->norm->Bd.offs)
mandoc_vmsg(MANDOCERR_ARG_REP,
mdoc->parse, argv->line,
argv->pos, "Bd -offset %s",
argv->value[0]);
rewrite_macro2len(argv->value);
n->norm->Bd.offs = argv->value[0];
break;
case MDOC_Compact:
if (n->norm->Bd.comp)
mandoc_msg(MANDOCERR_ARG_REP,
mdoc->parse, argv->line,
argv->pos, "Bd -compact");
n->norm->Bd.comp = 1;
break;
default:
abort();
/* NOTREACHED */
}
if (DISP__NONE == dt)
continue;
if (DISP__NONE == n->norm->Bd.type)
n->norm->Bd.type = dt;
else
mandoc_vmsg(MANDOCERR_BD_REP,
mdoc->parse, n->line, n->pos,
"Bd -%s", mdoc_argnames[argv->arg]);
}
if (DISP__NONE == n->norm->Bd.type) {
mandoc_msg(MANDOCERR_BD_NOTYPE, mdoc->parse,
n->line, n->pos, "Bd");
n->norm->Bd.type = DISP_ragged;
}
pre_par(mdoc, n);
}
static void
pre_an(PRE_ARGS)
{
struct mdoc_argv *argv;
size_t i;
if (n->args == NULL)
return;
for (i = 1; i < n->args->argc; i++) {
argv = n->args->argv + i;
mandoc_vmsg(MANDOCERR_AN_REP,
mdoc->parse, argv->line, argv->pos,
"An -%s", mdoc_argnames[argv->arg]);
}
argv = n->args->argv;
if (argv->arg == MDOC_Split)
n->norm->An.auth = AUTH_split;
else if (argv->arg == MDOC_Nosplit)
n->norm->An.auth = AUTH_nosplit;
else
abort();
}
static void
pre_std(PRE_ARGS)
{
if (n->args && 1 == n->args->argc)
if (MDOC_Std == n->args->argv[0].arg)
return;
mandoc_msg(MANDOCERR_ARG_STD, mdoc->parse,
n->line, n->pos, mdoc_macronames[n->tok]);
}
static void
pre_obsolete(PRE_ARGS)
{
if (MDOC_ELEM == n->type || MDOC_BLOCK == n->type)
mandoc_msg(MANDOCERR_MACRO_OBS, mdoc->parse,
n->line, n->pos, mdoc_macronames[n->tok]);
}
static void
pre_dt(PRE_ARGS)
{
if (mdoc->meta.title != NULL)
mandoc_msg(MANDOCERR_PROLOG_REP, mdoc->parse,
n->line, n->pos, "Dt");
else if (mdoc->meta.os != NULL)
mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
n->line, n->pos, "Dt after Os");
}
static void
pre_os(PRE_ARGS)
{
if (mdoc->meta.os != NULL)
mandoc_msg(MANDOCERR_PROLOG_REP, mdoc->parse,
n->line, n->pos, "Os");
else if (mdoc->flags & MDOC_PBODY)
mandoc_msg(MANDOCERR_PROLOG_LATE, mdoc->parse,
n->line, n->pos, "Os");
}
static void
pre_dd(PRE_ARGS)
{
if (mdoc->meta.date != NULL)
mandoc_msg(MANDOCERR_PROLOG_REP, mdoc->parse,
n->line, n->pos, "Dd");
else if (mdoc->flags & MDOC_PBODY)
mandoc_msg(MANDOCERR_PROLOG_LATE, mdoc->parse,
n->line, n->pos, "Dd");
else if (mdoc->meta.title != NULL)
mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
n->line, n->pos, "Dd after Dt");
else if (mdoc->meta.os != NULL)
mandoc_msg(MANDOCERR_PROLOG_ORDER, mdoc->parse,
n->line, n->pos, "Dd after Os");
}
static void
post_bf(POST_ARGS)
{
struct mdoc_node *np, *nch;
enum mdocargt arg;
/*
* Unlike other data pointers, these are "housed" by the HEAD
* element, which contains the goods.
*/
np = mdoc->last;
if (MDOC_HEAD != np->type)
return;
assert(MDOC_BLOCK == np->parent->type);
assert(MDOC_Bf == np->parent->tok);
/* Check the number of arguments. */
nch = np->child;
if (NULL == np->parent->args) {
if (NULL == nch) {
mandoc_msg(MANDOCERR_BF_NOFONT, mdoc->parse,
np->line, np->pos, "Bf");
return;
}
nch = nch->next;
}
if (NULL != nch)
mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
nch->line, nch->pos, "Bf ... %s", nch->string);
/* Extract argument into data. */
if (np->parent->args) {
arg = np->parent->args->argv[0].arg;
if (MDOC_Emphasis == arg)
np->norm->Bf.font = FONT_Em;
else if (MDOC_Literal == arg)
np->norm->Bf.font = FONT_Li;
else if (MDOC_Symbolic == arg)
np->norm->Bf.font = FONT_Sy;
else
abort();
return;
}
/* Extract parameter into data. */
if (0 == strcmp(np->child->string, "Em"))
np->norm->Bf.font = FONT_Em;
else if (0 == strcmp(np->child->string, "Li"))
np->norm->Bf.font = FONT_Li;
else if (0 == strcmp(np->child->string, "Sy"))
np->norm->Bf.font = FONT_Sy;
else
mandoc_vmsg(MANDOCERR_BF_BADFONT, mdoc->parse,
np->child->line, np->child->pos,
"Bf %s", np->child->string);
}
static void
post_lb(POST_ARGS)
{
struct mdoc_node *n;
const char *stdlibname;
char *libname;
n = mdoc->last->child;
assert(MDOC_TEXT == n->type);
if (NULL == (stdlibname = mdoc_a2lib(n->string)))
mandoc_asprintf(&libname,
"library \\(Lq%s\\(Rq", n->string);
else
libname = mandoc_strdup(stdlibname);
free(n->string);
n->string = libname;
}
static void
post_eoln(POST_ARGS)
{
const struct mdoc_node *n;
n = mdoc->last;
if (n->child)
mandoc_vmsg(MANDOCERR_ARG_SKIP,
mdoc->parse, n->line, n->pos,
"%s %s", mdoc_macronames[n->tok],
n->child->string);
}
static void
post_fname(POST_ARGS)
{
const struct mdoc_node *n;
const char *cp;
size_t pos;
n = mdoc->last->child;
pos = strcspn(n->string, "()");
cp = n->string + pos;
if ( ! (cp[0] == '\0' || (cp[0] == '(' && cp[1] == '*')))
mandoc_msg(MANDOCERR_FN_PAREN, mdoc->parse,
n->line, n->pos + pos, n->string);
}
static void
post_fn(POST_ARGS)
{
post_fname(mdoc);
post_fa(mdoc);
}
static void
post_fo(POST_ARGS)
{
const struct mdoc_node *n;
n = mdoc->last;
if (n->type != MDOC_HEAD)
return;
if (n->child == NULL) {
mandoc_msg(MANDOCERR_FO_NOHEAD, mdoc->parse,
n->line, n->pos, "Fo");
return;
}
if (n->child != n->last) {
mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
n->child->next->line, n->child->next->pos,
"Fo ... %s", n->child->next->string);
while (n->child != n->last)
mdoc_node_delete(mdoc, n->last);
}
post_fname(mdoc);
}
static void
post_fa(POST_ARGS)
{
const struct mdoc_node *n;
const char *cp;
for (n = mdoc->last->child; n != NULL; n = n->next) {
for (cp = n->string; *cp != '\0'; cp++) {
/* Ignore callbacks and alterations. */
if (*cp == '(' || *cp == '{')
break;
if (*cp != ',')
continue;
mandoc_msg(MANDOCERR_FA_COMMA, mdoc->parse,
n->line, n->pos + (cp - n->string),
n->string);
break;
}
}
}
static void
post_vt(POST_ARGS)
{
const struct mdoc_node *n;
/*
* The Vt macro comes in both ELEM and BLOCK form, both of which
* have different syntaxes (yet more context-sensitive
* behaviour). ELEM types must have a child, which is already
* guaranteed by the in_line parsing routine; BLOCK types,
* specifically the BODY, should only have TEXT children.
*/
if (MDOC_BODY != mdoc->last->type)
return;
for (n = mdoc->last->child; n; n = n->next)
if (MDOC_TEXT != n->type)
mandoc_msg(MANDOCERR_VT_CHILD, mdoc->parse,
n->line, n->pos, mdoc_macronames[n->tok]);
}
static void
post_nm(POST_ARGS)
{
struct mdoc_node *n;
n = mdoc->last;
if (n->last != NULL &&
(n->last->tok == MDOC_Pp ||
n->last->tok == MDOC_Lp))
mdoc_node_relink(mdoc, n->last);
if (NULL != mdoc->meta.name)
return;
mdoc_deroff(&mdoc->meta.name, n);
if (NULL == mdoc->meta.name)
mandoc_msg(MANDOCERR_NM_NONAME, mdoc->parse,
n->line, n->pos, "Nm");
}
static void
post_nd(POST_ARGS)
{
struct mdoc_node *n;
n = mdoc->last;
if (n->type != MDOC_BODY)
return;
if (n->child == NULL)
mandoc_msg(MANDOCERR_ND_EMPTY, mdoc->parse,
n->line, n->pos, "Nd");
post_hyph(mdoc);
}
static void
post_d1(POST_ARGS)
{
struct mdoc_node *n;
n = mdoc->last;
if (n->type != MDOC_BODY)
return;
if (n->child == NULL)
mandoc_msg(MANDOCERR_BLK_EMPTY, mdoc->parse,
n->line, n->pos, "D1");
post_hyph(mdoc);
}
static void
post_literal(POST_ARGS)
{
struct mdoc_node *n;
n = mdoc->last;
if (n->type != MDOC_BODY)
return;
if (n->child == NULL)
mandoc_msg(MANDOCERR_BLK_EMPTY, mdoc->parse,
n->line, n->pos, mdoc_macronames[n->tok]);
if (n->tok == MDOC_Bd &&
n->norm->Bd.type != DISP_literal &&
n->norm->Bd.type != DISP_unfilled)
return;
mdoc->flags &= ~MDOC_LITERAL;
}
static void
post_defaults(POST_ARGS)
{
struct mdoc_node *nn;
/*
* The `Ar' defaults to "file ..." if no value is provided as an
* argument; the `Mt' and `Pa' macros use "~"; the `Li' just
* gets an empty string.
*/
if (mdoc->last->child)
return;
nn = mdoc->last;
mdoc->next = MDOC_NEXT_CHILD;
switch (nn->tok) {
case MDOC_Ar:
mdoc_word_alloc(mdoc, nn->line, nn->pos, "file");
mdoc_word_alloc(mdoc, nn->line, nn->pos, "...");
break;
case MDOC_Pa:
/* FALLTHROUGH */
case MDOC_Mt:
mdoc_word_alloc(mdoc, nn->line, nn->pos, "~");
break;
default:
abort();
/* NOTREACHED */
}
mdoc->last = nn;
}
static void
post_at(POST_ARGS)
{
struct mdoc_node *n;
const char *std_att;
char *att;
n = mdoc->last;
if (n->child == NULL) {
mdoc->next = MDOC_NEXT_CHILD;
mdoc_word_alloc(mdoc, n->line, n->pos, "AT&T UNIX");
mdoc->last = n;
return;
}
/*
* If we have a child, look it up in the standard keys. If a
* key exist, use that instead of the child; if it doesn't,
* prefix "AT&T UNIX " to the existing data.
*/
n = n->child;
assert(MDOC_TEXT == n->type);
if (NULL == (std_att = mdoc_a2att(n->string))) {
mandoc_vmsg(MANDOCERR_AT_BAD, mdoc->parse,
n->line, n->pos, "At %s", n->string);
mandoc_asprintf(&att, "AT&T UNIX %s", n->string);
} else
att = mandoc_strdup(std_att);
free(n->string);
n->string = att;
}
static void
post_an(POST_ARGS)
{
struct mdoc_node *np, *nch;
np = mdoc->last;
nch = np->child;
if (np->norm->An.auth == AUTH__NONE) {
if (nch == NULL)
mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
np->line, np->pos, "An");
} else if (nch != NULL)
mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
nch->line, nch->pos, "An ... %s", nch->string);
}
static void
post_en(POST_ARGS)
{
if (MDOC_BLOCK == mdoc->last->type)
mdoc->last->norm->Es = mdoc->last_es;
}
static void
post_es(POST_ARGS)
{
mdoc->last_es = mdoc->last;
}
static void
post_it(POST_ARGS)
{
int i, cols;
enum mdoc_list lt;
struct mdoc_node *nbl, *nit, *nch;
nit = mdoc->last;
if (nit->type != MDOC_BLOCK)
return;
nbl = nit->parent->parent;
lt = nbl->norm->Bl.type;
switch (lt) {
case LIST_tag:
/* FALLTHROUGH */
case LIST_hang:
/* FALLTHROUGH */
case LIST_ohang:
/* FALLTHROUGH */
case LIST_inset:
/* FALLTHROUGH */
case LIST_diag:
if (nit->head->child == NULL)
mandoc_vmsg(MANDOCERR_IT_NOHEAD,
mdoc->parse, nit->line, nit->pos,
"Bl -%s It",
mdoc_argnames[nbl->args->argv[0].arg]);
break;
case LIST_bullet:
/* FALLTHROUGH */
case LIST_dash:
/* FALLTHROUGH */
case LIST_enum:
/* FALLTHROUGH */
case LIST_hyphen:
if (nit->body == NULL || nit->body->child == NULL)
mandoc_vmsg(MANDOCERR_IT_NOBODY,
mdoc->parse, nit->line, nit->pos,
"Bl -%s It",
mdoc_argnames[nbl->args->argv[0].arg]);
/* FALLTHROUGH */
case LIST_item:
if (nit->head->child != NULL)
mandoc_vmsg(MANDOCERR_ARG_SKIP,
mdoc->parse, nit->line, nit->pos,
"It %s", nit->head->child->string);
break;
case LIST_column:
cols = (int)nbl->norm->Bl.ncols;
assert(nit->head->child == NULL);
for (i = 0, nch = nit->child; nch; nch = nch->next)
if (nch->type == MDOC_BODY)
i++;
if (i < cols || i > cols + 1)
mandoc_vmsg(MANDOCERR_BL_COL,
mdoc->parse, nit->line, nit->pos,
"%d columns, %d cells", cols, i);
break;
default:
abort();
}
}
static void
post_bl_block(POST_ARGS)
{
struct mdoc_node *n, *ni, *nc;
/*
* These are fairly complicated, so we've broken them into two
* functions. post_bl_block_tag() is called when a -tag is
* specified, but no -width (it must be guessed). The second
* when a -width is specified (macro indicators must be
* rewritten into real lengths).
*/
n = mdoc->last;
if (LIST_tag == n->norm->Bl.type &&
NULL == n->norm->Bl.width) {
post_bl_block_tag(mdoc);
assert(n->norm->Bl.width);
}
for (ni = n->body->child; ni; ni = ni->next) {
if (NULL == ni->body)
continue;
nc = ni->body->last;
while (NULL != nc) {
switch (nc->tok) {
case MDOC_Pp:
/* FALLTHROUGH */
case MDOC_Lp:
/* FALLTHROUGH */
case MDOC_br:
break;
default:
nc = NULL;
continue;
}
if (NULL == ni->next) {
mandoc_msg(MANDOCERR_PAR_MOVE,
mdoc->parse, nc->line, nc->pos,
mdoc_macronames[nc->tok]);
mdoc_node_relink(mdoc, nc);
} else if (0 == n->norm->Bl.comp &&
LIST_column != n->norm->Bl.type) {
mandoc_vmsg(MANDOCERR_PAR_SKIP,
mdoc->parse, nc->line, nc->pos,
"%s before It",
mdoc_macronames[nc->tok]);
mdoc_node_delete(mdoc, nc);
} else
break;
nc = ni->body->last;
}
}
}
/*
* If the argument of -offset or -width is a macro,
* replace it with the associated default width.
*/
void
rewrite_macro2len(char **arg)
{
size_t width;
enum mdoct tok;
if (*arg == NULL)
return;
else if ( ! strcmp(*arg, "Ds"))
width = 6;
else if ((tok = mdoc_hash_find(*arg)) == MDOC_MAX)
return;
else
width = macro2len(tok);
free(*arg);
mandoc_asprintf(arg, "%zun", width);
}
static void
post_bl_block_tag(POST_ARGS)
{
struct mdoc_node *n, *nn;
size_t sz, ssz;
int i;
char buf[24];
/*
* Calculate the -width for a `Bl -tag' list if it hasn't been
* provided. Uses the first head macro. NOTE AGAIN: this is
* ONLY if the -width argument has NOT been provided. See
* rewrite_macro2len() for converting the -width string.
*/
sz = 10;
n = mdoc->last;
for (nn = n->body->child; nn; nn = nn->next) {
if (MDOC_It != nn->tok)
continue;
assert(MDOC_BLOCK == nn->type);
nn = nn->head->child;
if (nn == NULL)
break;
if (MDOC_TEXT == nn->type) {
sz = strlen(nn->string) + 1;
break;
}
if (0 != (ssz = macro2len(nn->tok)))
sz = ssz;
break;
}
/* Defaults to ten ens. */
(void)snprintf(buf, sizeof(buf), "%un", (unsigned int)sz);
/*
* We have to dynamically add this to the macro's argument list.
* We're guaranteed that a MDOC_Width doesn't already exist.
*/
assert(n->args);
i = (int)(n->args->argc)++;
n->args->argv = mandoc_reallocarray(n->args->argv,
n->args->argc, sizeof(struct mdoc_argv));
n->args->argv[i].arg = MDOC_Width;
n->args->argv[i].line = n->line;
n->args->argv[i].pos = n->pos;
n->args->argv[i].sz = 1;
n->args->argv[i].value = mandoc_malloc(sizeof(char *));
n->args->argv[i].value[0] = mandoc_strdup(buf);
/* Set our width! */
n->norm->Bl.width = n->args->argv[i].value[0];
}
static void
post_bl_head(POST_ARGS)
{
struct mdoc_node *nbl, *nh, *nch, *nnext;
struct mdoc_argv *argv;
int i, j;
nh = mdoc->last;
if (nh->norm->Bl.type != LIST_column) {
if ((nch = nh->child) == NULL)
return;
mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
nch->line, nch->pos, "Bl ... %s", nch->string);
while (nch != NULL) {
mdoc_node_delete(mdoc, nch);
nch = nh->child;
}
return;
}
/*
* Append old-style lists, where the column width specifiers
* trail as macro parameters, to the new-style ("normal-form")
* lists where they're argument values following -column.
*/
if (nh->child == NULL)
return;
nbl = nh->parent;
for (j = 0; j < (int)nbl->args->argc; j++)
if (nbl->args->argv[j].arg == MDOC_Column)
break;
assert(j < (int)nbl->args->argc);
/*
* Accommodate for new-style groff column syntax. Shuffle the
* child nodes, all of which must be TEXT, as arguments for the
* column field. Then, delete the head children.
*/
argv = nbl->args->argv + j;
i = argv->sz;
argv->sz += nh->nchild;
argv->value = mandoc_reallocarray(argv->value,
argv->sz, sizeof(char *));
nh->norm->Bl.ncols = argv->sz;
nh->norm->Bl.cols = (void *)argv->value;
for (nch = nh->child; nch != NULL; nch = nnext) {
argv->value[i++] = nch->string;
nch->string = NULL;
nnext = nch->next;
mdoc_node_delete(NULL, nch);
}
nh->nchild = 0;
nh->child = NULL;
}
static void
post_bl(POST_ARGS)
{
struct mdoc_node *nparent, *nprev; /* of the Bl block */
struct mdoc_node *nblock, *nbody; /* of the Bl */
struct mdoc_node *nchild, *nnext; /* of the Bl body */
nbody = mdoc->last;
switch (nbody->type) {
case MDOC_BLOCK:
post_bl_block(mdoc);
return;
case MDOC_HEAD:
post_bl_head(mdoc);
return;
case MDOC_BODY:
break;
default:
return;
}
nchild = nbody->child;
if (nchild == NULL) {
mandoc_msg(MANDOCERR_BLK_EMPTY, mdoc->parse,
nbody->line, nbody->pos, "Bl");
return;
}
while (nchild != NULL) {
if (nchild->tok == MDOC_It ||
(nchild->tok == MDOC_Sm &&
nchild->next != NULL &&
nchild->next->tok == MDOC_It)) {
nchild = nchild->next;
continue;
}
mandoc_msg(MANDOCERR_BL_MOVE, mdoc->parse,
nchild->line, nchild->pos,
mdoc_macronames[nchild->tok]);
/*
* Move the node out of the Bl block.
* First, collect all required node pointers.
*/
nblock = nbody->parent;
nprev = nblock->prev;
nparent = nblock->parent;
nnext = nchild->next;
/*
* Unlink this child.
*/
assert(NULL == nchild->prev);
if (0 == --nbody->nchild) {
nbody->child = NULL;
nbody->last = NULL;
assert(NULL == nnext);
} else {
nbody->child = nnext;
nnext->prev = NULL;
}
/*
* Relink this child.
*/
nchild->parent = nparent;
nchild->prev = nprev;
nchild->next = nblock;
nblock->prev = nchild;
nparent->nchild++;
if (NULL == nprev)
nparent->child = nchild;
else
nprev->next = nchild;
nchild = nnext;
}
}
static void
post_bk(POST_ARGS)
{
struct mdoc_node *n;
n = mdoc->last;
if (n->type == MDOC_BLOCK && n->body->child == NULL) {
mandoc_msg(MANDOCERR_BLK_EMPTY,
mdoc->parse, n->line, n->pos, "Bk");
mdoc_node_delete(mdoc, n);
}
}
static void
post_sm(struct mdoc *mdoc)
{
struct mdoc_node *nch;
nch = mdoc->last->child;
if (nch == NULL) {
mdoc->flags ^= MDOC_SMOFF;
return;
}
assert(nch->type == MDOC_TEXT);
if ( ! strcmp(nch->string, "on")) {
mdoc->flags &= ~MDOC_SMOFF;
return;
}
if ( ! strcmp(nch->string, "off")) {
mdoc->flags |= MDOC_SMOFF;
return;
}
mandoc_vmsg(MANDOCERR_SM_BAD,
mdoc->parse, nch->line, nch->pos,
"%s %s", mdoc_macronames[mdoc->last->tok], nch->string);
mdoc_node_relink(mdoc, nch);
return;
}
static void
post_root(POST_ARGS)
{
struct mdoc_node *n;
/* Add missing prologue data. */
if (mdoc->meta.date == NULL)
mdoc->meta.date = mdoc->quick ?
mandoc_strdup("") :
mandoc_normdate(mdoc->parse, NULL, 0, 0);
if (mdoc->meta.title == NULL) {
mandoc_msg(MANDOCERR_DT_NOTITLE,
mdoc->parse, 0, 0, "EOF");
mdoc->meta.title = mandoc_strdup("UNTITLED");
}
if (mdoc->meta.vol == NULL)
mdoc->meta.vol = mandoc_strdup("LOCAL");
if (mdoc->meta.os == NULL) {
mandoc_msg(MANDOCERR_OS_MISSING,
mdoc->parse, 0, 0, NULL);
mdoc->meta.os = mandoc_strdup("");
}
/* Check that we begin with a proper `Sh'. */
n = mdoc->first->child;
while (n != NULL && mdoc_macros[n->tok].flags & MDOC_PROLOGUE)
n = n->next;
if (n == NULL)
mandoc_msg(MANDOCERR_DOC_EMPTY, mdoc->parse, 0, 0, NULL);
else if (n->tok != MDOC_Sh)
mandoc_msg(MANDOCERR_SEC_BEFORE, mdoc->parse,
n->line, n->pos, mdoc_macronames[n->tok]);
}
static void
post_st(POST_ARGS)
{
struct mdoc_node *n, *nch;
const char *p;
n = mdoc->last;
nch = n->child;
assert(MDOC_TEXT == nch->type);
if (NULL == (p = mdoc_a2st(nch->string))) {
mandoc_vmsg(MANDOCERR_ST_BAD, mdoc->parse,
nch->line, nch->pos, "St %s", nch->string);
mdoc_node_delete(mdoc, n);
} else {
free(nch->string);
nch->string = mandoc_strdup(p);
}
}
static void
post_rs(POST_ARGS)
{
struct mdoc_node *np, *nch, *next, *prev;
int i, j;
np = mdoc->last;
if (np->type != MDOC_BODY)
return;
if (np->child == NULL) {
mandoc_msg(MANDOCERR_RS_EMPTY, mdoc->parse,
np->line, np->pos, "Rs");
return;
}
/*
* The full `Rs' block needs special handling to order the
* sub-elements according to `rsord'. Pick through each element
* and correctly order it. This is an insertion sort.
*/
next = NULL;
for (nch = np->child->next; nch != NULL; nch = next) {
/* Determine order number of this child. */
for (i = 0; i < RSORD_MAX; i++)
if (rsord[i] == nch->tok)
break;
if (i == RSORD_MAX) {
mandoc_msg(MANDOCERR_RS_BAD,
mdoc->parse, nch->line, nch->pos,
mdoc_macronames[nch->tok]);
i = -1;
} else if (nch->tok == MDOC__J || nch->tok == MDOC__B)
np->norm->Rs.quote_T++;
/*
* Remove this child from the chain. This somewhat
* repeats mdoc_node_unlink(), but since we're
* just re-ordering, there's no need for the
* full unlink process.
*/
if ((next = nch->next) != NULL)
next->prev = nch->prev;
if ((prev = nch->prev) != NULL)
prev->next = nch->next;
nch->prev = nch->next = NULL;
/*
* Scan back until we reach a node that's
* to be ordered before this child.
*/
for ( ; prev ; prev = prev->prev) {
/* Determine order of `prev'. */
for (j = 0; j < RSORD_MAX; j++)
if (rsord[j] == prev->tok)
break;
if (j == RSORD_MAX)
j = -1;
if (j <= i)
break;
}
/*
* Set this child back into its correct place
* in front of the `prev' node.
*/
nch->prev = prev;
if (prev == NULL) {
np->child->prev = nch;
nch->next = np->child;
np->child = nch;
} else {
if (prev->next)
prev->next->prev = nch;
nch->next = prev->next;
prev->next = nch;
}
}
}
/*
* For some arguments of some macros,
* convert all breakable hyphens into ASCII_HYPH.
*/
static void
post_hyph(POST_ARGS)
{
struct mdoc_node *nch;
char *cp;
for (nch = mdoc->last->child; nch != NULL; nch = nch->next) {
if (nch->type != MDOC_TEXT)
continue;
cp = nch->string;
if (*cp == '\0')
continue;
while (*(++cp) != '\0')
if (*cp == '-' &&
isalpha((unsigned char)cp[-1]) &&
isalpha((unsigned char)cp[1]))
*cp = ASCII_HYPH;
}
}
static void
post_ns(POST_ARGS)
{
if (MDOC_LINE & mdoc->last->flags)
mandoc_msg(MANDOCERR_NS_SKIP, mdoc->parse,
mdoc->last->line, mdoc->last->pos, NULL);
}
static void
post_sh(POST_ARGS)
{
post_ignpar(mdoc);
switch (mdoc->last->type) {
case MDOC_HEAD:
post_sh_head(mdoc);
break;
case MDOC_BODY:
switch (mdoc->lastsec) {
case SEC_NAME:
post_sh_name(mdoc);
break;
case SEC_SEE_ALSO:
post_sh_see_also(mdoc);
break;
case SEC_AUTHORS:
post_sh_authors(mdoc);
break;
default:
break;
}
break;
default:
break;
}
}
static void
post_sh_name(POST_ARGS)
{
struct mdoc_node *n;
int hasnm, hasnd;
hasnm = hasnd = 0;
for (n = mdoc->last->child; n != NULL; n = n->next) {
switch (n->tok) {
case MDOC_Nm:
hasnm = 1;
break;
case MDOC_Nd:
hasnd = 1;
if (n->next != NULL)
mandoc_msg(MANDOCERR_NAMESEC_ND,
mdoc->parse, n->line, n->pos, NULL);
break;
case MDOC_MAX:
if (hasnm)
break;
/* FALLTHROUGH */
default:
mandoc_msg(MANDOCERR_NAMESEC_BAD, mdoc->parse,
n->line, n->pos, mdoc_macronames[n->tok]);
break;
}
}
if ( ! hasnm)
mandoc_msg(MANDOCERR_NAMESEC_NONM, mdoc->parse,
mdoc->last->line, mdoc->last->pos, NULL);
if ( ! hasnd)
mandoc_msg(MANDOCERR_NAMESEC_NOND, mdoc->parse,
mdoc->last->line, mdoc->last->pos, NULL);
}
static void
post_sh_see_also(POST_ARGS)
{
const struct mdoc_node *n;
const char *name, *sec;
const char *lastname, *lastsec, *lastpunct;
int cmp;
n = mdoc->last->child;
lastname = lastsec = lastpunct = NULL;
while (n != NULL) {
if (n->tok != MDOC_Xr || n->nchild < 2)
break;
/* Process one .Xr node. */
name = n->child->string;
sec = n->child->next->string;
if (lastsec != NULL) {
if (lastpunct[0] != ',' || lastpunct[1] != '\0')
mandoc_vmsg(MANDOCERR_XR_PUNCT,
mdoc->parse, n->line, n->pos,
"%s before %s(%s)", lastpunct,
name, sec);
cmp = strcmp(lastsec, sec);
if (cmp > 0)
mandoc_vmsg(MANDOCERR_XR_ORDER,
mdoc->parse, n->line, n->pos,
"%s(%s) after %s(%s)", name,
sec, lastname, lastsec);
else if (cmp == 0 &&
strcasecmp(lastname, name) > 0)
mandoc_vmsg(MANDOCERR_XR_ORDER,
mdoc->parse, n->line, n->pos,
"%s after %s", name, lastname);
}
lastname = name;
lastsec = sec;
/* Process the following node. */
n = n->next;
if (n == NULL)
break;
if (n->tok == MDOC_Xr) {
lastpunct = "none";
continue;
}
if (n->type != MDOC_TEXT)
break;
for (name = n->string; *name != '\0'; name++)
if (isalpha((const unsigned char)*name))
return;
lastpunct = n->string;
if (n->next == NULL)
mandoc_vmsg(MANDOCERR_XR_PUNCT, mdoc->parse,
n->line, n->pos, "%s after %s(%s)",
lastpunct, lastname, lastsec);
n = n->next;
}
}
static int
child_an(const struct mdoc_node *n)
{
for (n = n->child; n != NULL; n = n->next)
if ((n->tok == MDOC_An && n->nchild) || child_an(n))
return(1);
return(0);
}
static void
post_sh_authors(POST_ARGS)
{
if ( ! child_an(mdoc->last))
mandoc_msg(MANDOCERR_AN_MISSING, mdoc->parse,
mdoc->last->line, mdoc->last->pos, NULL);
}
static void
post_sh_head(POST_ARGS)
{
struct mdoc_node *n;
const char *goodsec;
char *secname;
enum mdoc_sec sec;
/*
* Process a new section. Sections are either "named" or
* "custom". Custom sections are user-defined, while named ones
* follow a conventional order and may only appear in certain
* manual sections.
*/
secname = NULL;
sec = SEC_CUSTOM;
mdoc_deroff(&secname, mdoc->last);
sec = NULL == secname ? SEC_CUSTOM : a2sec(secname);
/* The NAME should be first. */
if (SEC_NAME != sec && SEC_NONE == mdoc->lastnamed)
mandoc_vmsg(MANDOCERR_NAMESEC_FIRST, mdoc->parse,
mdoc->last->line, mdoc->last->pos,
"Sh %s", secname);
/* The SYNOPSIS gets special attention in other areas. */
if (SEC_SYNOPSIS == sec) {
roff_setreg(mdoc->roff, "nS", 1, '=');
mdoc->flags |= MDOC_SYNOPSIS;
} else {
roff_setreg(mdoc->roff, "nS", 0, '=');
mdoc->flags &= ~MDOC_SYNOPSIS;
}
/* Mark our last section. */
mdoc->lastsec = sec;
/*
* Set the section attribute for the current HEAD, for its
* parent BLOCK, and for the HEAD children; the latter can
* only be TEXT nodes, so no recursion is needed.
* For other blocks and elements, including .Sh BODY, this is
* done when allocating the node data structures, but for .Sh
* BLOCK and HEAD, the section is still unknown at that time.
*/
mdoc->last->parent->sec = sec;
mdoc->last->sec = sec;
for (n = mdoc->last->child; n; n = n->next)
n->sec = sec;
/* We don't care about custom sections after this. */
if (SEC_CUSTOM == sec) {
free(secname);
return;
}
/*
* Check whether our non-custom section is being repeated or is
* out of order.
*/
if (sec == mdoc->lastnamed)
mandoc_vmsg(MANDOCERR_SEC_REP, mdoc->parse,
mdoc->last->line, mdoc->last->pos,
"Sh %s", secname);
if (sec < mdoc->lastnamed)
mandoc_vmsg(MANDOCERR_SEC_ORDER, mdoc->parse,
mdoc->last->line, mdoc->last->pos,
"Sh %s", secname);
/* Mark the last named section. */
mdoc->lastnamed = sec;
/* Check particular section/manual conventions. */
if (mdoc->meta.msec == NULL) {
free(secname);
return;
}
goodsec = NULL;
switch (sec) {
case SEC_ERRORS:
if (*mdoc->meta.msec == '4')
break;
goodsec = "2, 3, 4, 9";
/* FALLTHROUGH */
case SEC_RETURN_VALUES:
/* FALLTHROUGH */
case SEC_LIBRARY:
if (*mdoc->meta.msec == '2')
break;
if (*mdoc->meta.msec == '3')
break;
if (NULL == goodsec)
goodsec = "2, 3, 9";
/* FALLTHROUGH */
case SEC_CONTEXT:
if (*mdoc->meta.msec == '9')
break;
if (NULL == goodsec)
goodsec = "9";
mandoc_vmsg(MANDOCERR_SEC_MSEC, mdoc->parse,
mdoc->last->line, mdoc->last->pos,
"Sh %s for %s only", secname, goodsec);
break;
default:
break;
}
free(secname);
}
static void
post_ignpar(POST_ARGS)
{
struct mdoc_node *np;
switch (mdoc->last->type) {
case MDOC_HEAD:
post_hyph(mdoc);
return;
case MDOC_BODY:
break;
default:
return;
}
if (NULL != (np = mdoc->last->child))
if (MDOC_Pp == np->tok || MDOC_Lp == np->tok) {
mandoc_vmsg(MANDOCERR_PAR_SKIP,
mdoc->parse, np->line, np->pos,
"%s after %s", mdoc_macronames[np->tok],
mdoc_macronames[mdoc->last->tok]);
mdoc_node_delete(mdoc, np);
}
if (NULL != (np = mdoc->last->last))
if (MDOC_Pp == np->tok || MDOC_Lp == np->tok) {
mandoc_vmsg(MANDOCERR_PAR_SKIP, mdoc->parse,
np->line, np->pos, "%s at the end of %s",
mdoc_macronames[np->tok],
mdoc_macronames[mdoc->last->tok]);
mdoc_node_delete(mdoc, np);
}
}
static void
pre_par(PRE_ARGS)
{
if (NULL == mdoc->last)
return;
if (MDOC_ELEM != n->type && MDOC_BLOCK != n->type)
return;
/*
* Don't allow prior `Lp' or `Pp' prior to a paragraph-type
* block: `Lp', `Pp', or non-compact `Bd' or `Bl'.
*/
if (MDOC_Pp != mdoc->last->tok &&
MDOC_Lp != mdoc->last->tok &&
MDOC_br != mdoc->last->tok)
return;
if (MDOC_Bl == n->tok && n->norm->Bl.comp)
return;
if (MDOC_Bd == n->tok && n->norm->Bd.comp)
return;
if (MDOC_It == n->tok && n->parent->norm->Bl.comp)
return;
mandoc_vmsg(MANDOCERR_PAR_SKIP, mdoc->parse,
mdoc->last->line, mdoc->last->pos,
"%s before %s", mdoc_macronames[mdoc->last->tok],
mdoc_macronames[n->tok]);
mdoc_node_delete(mdoc, mdoc->last);
}
static void
post_par(POST_ARGS)
{
struct mdoc_node *np;
np = mdoc->last;
if (np->tok == MDOC_sp) {
if (np->nchild > 1)
mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
np->child->next->line, np->child->next->pos,
"sp ... %s", np->child->next->string);
} else if (np->child != NULL)
mandoc_vmsg(MANDOCERR_ARG_SKIP,
mdoc->parse, np->line, np->pos, "%s %s",
mdoc_macronames[np->tok], np->child->string);
if (NULL == (np = mdoc->last->prev)) {
np = mdoc->last->parent;
if (MDOC_Sh != np->tok && MDOC_Ss != np->tok)
return;
} else if (MDOC_Pp != np->tok && MDOC_Lp != np->tok &&
(MDOC_br != mdoc->last->tok ||
(MDOC_sp != np->tok && MDOC_br != np->tok)))
return;
mandoc_vmsg(MANDOCERR_PAR_SKIP, mdoc->parse,
mdoc->last->line, mdoc->last->pos,
"%s after %s", mdoc_macronames[mdoc->last->tok],
mdoc_macronames[np->tok]);
mdoc_node_delete(mdoc, mdoc->last);
}
static void
pre_literal(PRE_ARGS)
{
pre_display(mdoc, n);
if (MDOC_BODY != n->type)
return;
/*
* The `Dl' (note "el" not "one") and `Bd -literal' and `Bd
* -unfilled' macros set MDOC_LITERAL on entrance to the body.
*/
switch (n->tok) {
case MDOC_Dl:
mdoc->flags |= MDOC_LITERAL;
break;
case MDOC_Bd:
if (DISP_literal == n->norm->Bd.type)
mdoc->flags |= MDOC_LITERAL;
if (DISP_unfilled == n->norm->Bd.type)
mdoc->flags |= MDOC_LITERAL;
break;
default:
abort();
/* NOTREACHED */
}
}
static void
post_dd(POST_ARGS)
{
struct mdoc_node *n;
char *datestr;
if (mdoc->meta.date)
free(mdoc->meta.date);
n = mdoc->last;
if (NULL == n->child || '\0' == n->child->string[0]) {
mdoc->meta.date = mdoc->quick ? mandoc_strdup("") :
mandoc_normdate(mdoc->parse, NULL, n->line, n->pos);
goto out;
}
datestr = NULL;
mdoc_deroff(&datestr, n);
if (mdoc->quick)
mdoc->meta.date = datestr;
else {
mdoc->meta.date = mandoc_normdate(mdoc->parse,
datestr, n->line, n->pos);
free(datestr);
}
out:
mdoc_node_delete(mdoc, n);
}
static void
post_dt(POST_ARGS)
{
struct mdoc_node *nn, *n;
const char *cp;
char *p;
n = mdoc->last;
free(mdoc->meta.title);
free(mdoc->meta.msec);
free(mdoc->meta.vol);
free(mdoc->meta.arch);
mdoc->meta.title = NULL;
mdoc->meta.msec = NULL;
mdoc->meta.vol = NULL;
mdoc->meta.arch = NULL;
/* Mandatory first argument: title. */
nn = n->child;
if (nn == NULL || *nn->string == '\0') {
mandoc_msg(MANDOCERR_DT_NOTITLE,
mdoc->parse, n->line, n->pos, "Dt");
mdoc->meta.title = mandoc_strdup("UNTITLED");
} else {
mdoc->meta.title = mandoc_strdup(nn->string);
/* Check that all characters are uppercase. */
for (p = nn->string; *p != '\0'; p++)
if (islower((unsigned char)*p)) {
mandoc_vmsg(MANDOCERR_TITLE_CASE,
mdoc->parse, nn->line,
nn->pos + (p - nn->string),
"Dt %s", nn->string);
break;
}
}
/* Mandatory second argument: section.<2E>*/
if (nn != NULL)
nn = nn->next;
if (nn == NULL) {
mandoc_vmsg(MANDOCERR_MSEC_MISSING,
mdoc->parse, n->line, n->pos,
"Dt %s", mdoc->meta.title);
mdoc->meta.vol = mandoc_strdup("LOCAL");
goto out; /* msec and arch remain NULL. */
}
mdoc->meta.msec = mandoc_strdup(nn->string);
/* Infer volume title from section number. */
cp = mandoc_a2msec(nn->string);
if (cp == NULL) {
mandoc_vmsg(MANDOCERR_MSEC_BAD, mdoc->parse,
nn->line, nn->pos, "Dt ... %s", nn->string);
mdoc->meta.vol = mandoc_strdup(nn->string);
} else
mdoc->meta.vol = mandoc_strdup(cp);
/* Optional third argument: architecture. */
if ((nn = nn->next) == NULL)
goto out;
for (p = nn->string; *p != '\0'; p++)
*p = tolower((unsigned char)*p);
mdoc->meta.arch = mandoc_strdup(nn->string);
/* Ignore fourth and later arguments. */
if ((nn = nn->next) != NULL)
mandoc_vmsg(MANDOCERR_ARG_EXCESS, mdoc->parse,
nn->line, nn->pos, "Dt ... %s", nn->string);
out:
mdoc_node_delete(mdoc, n);
}
static void
post_bx(POST_ARGS)
{
struct mdoc_node *n;
/*
* Make `Bx's second argument always start with an uppercase
* letter. Groff checks if it's an "accepted" term, but we just
* uppercase blindly.
*/
n = mdoc->last->child;
if (n && NULL != (n = n->next))
*n->string = (char)toupper((unsigned char)*n->string);
}
static void
post_os(POST_ARGS)
{
#ifndef OSNAME
struct utsname utsname;
static char *defbuf;
#endif
struct mdoc_node *n;
n = mdoc->last;
/*
* Set the operating system by way of the `Os' macro.
* The order of precedence is:
* 1. the argument of the `Os' macro, unless empty
* 2. the -Ios=foo command line argument, if provided
* 3. -DOSNAME="\"foo\"", if provided during compilation
* 4. "sysname release" from uname(3)
*/
free(mdoc->meta.os);
mdoc->meta.os = NULL;
mdoc_deroff(&mdoc->meta.os, n);
if (mdoc->meta.os)
goto out;
if (mdoc->defos) {
mdoc->meta.os = mandoc_strdup(mdoc->defos);
goto out;
}
#ifdef OSNAME
mdoc->meta.os = mandoc_strdup(OSNAME);
#else /*!OSNAME */
if (NULL == defbuf) {
if (-1 == uname(&utsname)) {
mandoc_msg(MANDOCERR_OS_UNAME, mdoc->parse,
n->line, n->pos, "Os");
defbuf = mandoc_strdup("UNKNOWN");
} else
mandoc_asprintf(&defbuf, "%s %s",
utsname.sysname, utsname.release);
}
mdoc->meta.os = mandoc_strdup(defbuf);
#endif /*!OSNAME*/
out:
mdoc_node_delete(mdoc, n);
}
/*
* If no argument is provided,
* fill in the name of the current manual page.
*/
static void
post_ex(POST_ARGS)
{
struct mdoc_node *n;
n = mdoc->last;
if (n->child)
return;
if (mdoc->meta.name == NULL) {
mandoc_msg(MANDOCERR_EX_NONAME, mdoc->parse,
n->line, n->pos, "Ex");
return;
}
mdoc->next = MDOC_NEXT_CHILD;
mdoc_word_alloc(mdoc, n->line, n->pos, mdoc->meta.name);
mdoc->last = n;
}
static enum mdoc_sec
a2sec(const char *p)
{
int i;
for (i = 0; i < (int)SEC__MAX; i++)
if (secnames[i] && 0 == strcmp(p, secnames[i]))
return((enum mdoc_sec)i);
return(SEC_CUSTOM);
}
static size_t
macro2len(enum mdoct macro)
{
switch (macro) {
case MDOC_Ad:
return(12);
case MDOC_Ao:
return(12);
case MDOC_An:
return(12);
case MDOC_Aq:
return(12);
case MDOC_Ar:
return(12);
case MDOC_Bo:
return(12);
case MDOC_Bq:
return(12);
case MDOC_Cd:
return(12);
case MDOC_Cm:
return(10);
case MDOC_Do:
return(10);
case MDOC_Dq:
return(12);
case MDOC_Dv:
return(12);
case MDOC_Eo:
return(12);
case MDOC_Em:
return(10);
case MDOC_Er:
return(17);
case MDOC_Ev:
return(15);
case MDOC_Fa:
return(12);
case MDOC_Fl:
return(10);
case MDOC_Fo:
return(16);
case MDOC_Fn:
return(16);
case MDOC_Ic:
return(10);
case MDOC_Li:
return(16);
case MDOC_Ms:
return(6);
case MDOC_Nm:
return(10);
case MDOC_No:
return(12);
case MDOC_Oo:
return(10);
case MDOC_Op:
return(14);
case MDOC_Pa:
return(32);
case MDOC_Pf:
return(12);
case MDOC_Po:
return(12);
case MDOC_Pq:
return(12);
case MDOC_Ql:
return(16);
case MDOC_Qo:
return(12);
case MDOC_So:
return(12);
case MDOC_Sq:
return(12);
case MDOC_Sy:
return(6);
case MDOC_Sx:
return(16);
case MDOC_Tn:
return(10);
case MDOC_Va:
return(12);
case MDOC_Vt:
return(12);
case MDOC_Xr:
return(10);
default:
break;
};
return(0);
}
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