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|
/* $Id$ */
/*
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
*
* 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 <assert.h>
#include <stdlib.h>
#include "private.h"
/* FIXME: `.St' can only have one argument set. */
typedef int (*v_args_sz)(struct mdoc *, int, int, int);
typedef int (*v_args)(struct mdoc *, int, int,
int, const char *[],
int, const struct mdoc_arg *);
typedef int (*v_tree)(struct mdoc *, int, int);
struct valids {
v_args_sz sz;
v_args args;
v_tree tree_pre;
v_tree tree_post;
};
static int assert_eq0(struct mdoc *, int, int, int);
static int assert_le1(struct mdoc *, int, int, int);
static int need_eq0(struct mdoc *, int, int, int);
static int need_eq1(struct mdoc *, int, int, int);
static int need_ge1(struct mdoc *, int, int, int);
static int need_le2(struct mdoc *, int, int, int);
static int want_eq0(struct mdoc *, int, int, int);
static int want_ge1(struct mdoc *, int, int, int);
static int tree_pre_ref(struct mdoc *, int, int);
static int tree_pre_display(struct mdoc *, int, int);
static int tree_post_onlyhead(struct mdoc *, int, int);
static int tree_post_onlybody(struct mdoc *, int, int);
static int tree_post_warnemptybody(struct mdoc *, int, int);
static int args_bool(struct mdoc *, int, int,
int, const char *[],
int, const struct mdoc_arg *);
static int args_sh(struct mdoc *, int, int,
int, const char *[],
int, const struct mdoc_arg *);
static int args_an(struct mdoc *, int, int,
int, const char *[],
int, const struct mdoc_arg *);
static int args_nopunct(struct mdoc *, int, int,
int, const char *[],
int, const struct mdoc_arg *);
static int args_xr(struct mdoc *, int, int,
int, const char *[],
int, const struct mdoc_arg *);
const struct valids mdoc_valids[MDOC_MAX] = {
{ NULL, NULL, NULL, NULL }, /* \" */
{ NULL, NULL, NULL, NULL }, /* Dd */ /* TODO */
{ NULL, NULL, NULL, NULL }, /* Dt */ /* TODO */
{ NULL, NULL, NULL, NULL }, /* Os */ /* TODO */
{ want_ge1, args_sh, NULL, NULL }, /* Sh */
{ want_ge1, NULL, NULL, NULL }, /* Ss */
{ want_eq0, NULL, NULL, NULL }, /* Pp */
{ assert_eq0, NULL, tree_pre_display, tree_post_onlyhead }, /* D1 */
{ assert_eq0, NULL, tree_pre_display, tree_post_onlyhead }, /* Dl */
{ want_eq0, NULL, tree_pre_display, tree_post_warnemptybody }, /* Bd */
{ assert_eq0, NULL, NULL, tree_post_onlybody }, /* Ed */
{ want_eq0, NULL, NULL, NULL }, /* Bl */
{ assert_eq0, NULL, NULL, tree_post_onlybody }, /* El */
{ NULL, NULL, NULL, NULL }, /* It */
{ need_ge1, NULL, NULL, NULL }, /* Ad */
{ NULL, args_an, NULL, NULL }, /* An */
{ NULL, NULL, NULL, NULL }, /* Ar */
{ need_ge1, NULL, NULL, NULL }, /* Cd */
{ NULL, NULL, NULL, NULL }, /* Cm */
{ need_ge1, NULL, NULL, NULL }, /* Dv */
{ need_ge1, NULL, NULL, NULL }, /* Er */
{ need_ge1, NULL, NULL, NULL }, /* Ev */
{ NULL, NULL, NULL, NULL }, /* Ex */
{ need_ge1, NULL, NULL, NULL }, /* Fa */
{ NULL, NULL, NULL, NULL }, /* Fd */
{ NULL, NULL, NULL, NULL }, /* Fl */
{ need_ge1, NULL, NULL, NULL }, /* Fn */
{ want_ge1, NULL, NULL, NULL }, /* Ft */
{ need_ge1, NULL, NULL, NULL }, /* Ic */
{ need_eq1, NULL, NULL, NULL }, /* In */
{ want_ge1, NULL, NULL, NULL }, /* Li */
{ want_ge1, NULL, NULL, NULL }, /* Nd */
{ NULL, NULL, NULL, NULL }, /* Nm */
{ NULL, NULL, NULL, NULL }, /* Op */
{ NULL, NULL, NULL, NULL }, /* Ot */
{ want_ge1, NULL, NULL, NULL }, /* Pa */
{ NULL, NULL, NULL, NULL }, /* Rv */
{ NULL, NULL, NULL, NULL }, /* St */
{ need_ge1, NULL, NULL, NULL }, /* Va */
{ need_ge1, NULL, NULL, NULL }, /* Vt */
{ need_le2, args_xr, NULL, NULL }, /* Xr */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %A */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %B */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %D */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %I */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %J */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %N */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %O */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %P */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %R */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %T */
{ need_ge1, NULL, tree_pre_ref, NULL }, /* %V */
{ NULL, NULL, NULL, NULL }, /* Ac */
{ NULL, NULL, NULL, NULL }, /* Ao */
{ NULL, NULL, NULL, NULL }, /* Aq */
{ need_le2, args_nopunct, NULL, NULL }, /* At */
{ NULL, NULL, NULL, NULL }, /* Bc */
{ NULL, NULL, NULL, NULL }, /* Bf */
{ NULL, NULL, NULL, NULL }, /* Bo */
{ NULL, NULL, NULL, NULL }, /* Bq */
{ assert_le1, NULL, NULL, NULL }, /* Bsx */
{ assert_le1, NULL, NULL, NULL }, /* Bx */
{ need_eq1, args_bool, NULL, NULL }, /* Db */
{ NULL, NULL, NULL, NULL }, /* Dc */
{ NULL, NULL, NULL, NULL }, /* Do */
{ NULL, NULL, NULL, NULL }, /* Dq */
{ NULL, NULL, NULL, NULL }, /* Ec */
{ NULL, NULL, NULL, NULL }, /* Ef */ /* -symbolic, etc. */
{ need_ge1, NULL, NULL, NULL }, /* Em */
{ NULL, NULL, NULL, NULL }, /* Eo */
{ assert_le1, NULL, NULL, NULL }, /* Fx */
{ want_ge1, NULL, NULL, NULL }, /* Ms */
{ NULL, NULL, NULL, NULL }, /* No */
{ NULL, NULL, NULL, NULL }, /* Ns */
{ assert_le1, NULL, NULL, NULL }, /* Nx */
{ assert_le1, NULL, NULL, NULL }, /* Ox */
{ NULL, NULL, NULL, NULL }, /* Pc */
{ NULL, NULL, NULL, NULL }, /* Pf */ /* 2 or more arguments */
{ NULL, NULL, NULL, NULL }, /* Po */
{ NULL, NULL, NULL, NULL }, /* Pq */
{ NULL, NULL, NULL, NULL }, /* Qc */
{ NULL, NULL, NULL, NULL }, /* Ql */
{ NULL, NULL, NULL, NULL }, /* Qo */
{ NULL, NULL, NULL, NULL }, /* Qq */
{ NULL, NULL, NULL, NULL }, /* Re */
{ NULL, NULL, NULL, NULL }, /* Rs */
{ NULL, NULL, NULL, NULL }, /* Sc */
{ NULL, NULL, NULL, NULL }, /* So */
{ NULL, NULL, NULL, NULL }, /* Sq */
{ need_eq1, args_bool, NULL, NULL }, /* Sm */
{ need_ge1, NULL, NULL, NULL }, /* Sx */
{ need_ge1, NULL, NULL, NULL }, /* Sy */
{ want_ge1, NULL, NULL, NULL }, /* Tn */
{ assert_eq0, NULL, NULL, NULL }, /* Ux */
{ NULL, NULL, NULL, NULL }, /* Xc */
{ NULL, NULL, NULL, NULL }, /* Xo */
{ NULL, NULL, NULL, NULL }, /* Fo */
{ NULL, NULL, NULL, NULL }, /* Fc */
{ NULL, NULL, NULL, NULL }, /* Oo */
{ NULL, NULL, NULL, NULL }, /* Oc */
{ NULL, NULL, NULL, NULL }, /* Bk */
{ NULL, NULL, NULL, NULL }, /* Ek */
{ need_eq0, NULL, NULL, NULL }, /* Bt */
{ need_eq1, NULL, NULL, NULL }, /* Hf */
{ NULL, NULL, NULL, NULL }, /* Fr */
{ need_eq0, NULL, NULL, NULL }, /* Ud */
};
static int
need_le2(struct mdoc *mdoc, int tok, int pos, int sz)
{
if (sz <= 2)
return(1);
return(mdoc_err(mdoc, tok, pos, ERR_ARGS_LE2));
}
static int
want_ge1(struct mdoc *mdoc, int tok, int pos, int sz)
{
if (sz > 0)
return(1);
return(mdoc_warn(mdoc, tok, pos, WARN_ARGS_GE1));
}
static int
want_eq0(struct mdoc *mdoc, int tok, int pos, int sz)
{
if (sz == 0)
return(1);
return(mdoc_warn(mdoc, tok, pos, WARN_ARGS_EQ0));
}
static int
need_eq0(struct mdoc *mdoc, int tok, int pos, int sz)
{
if (sz == 0)
return(1);
return(mdoc_err(mdoc, tok, pos, ERR_ARGS_EQ0));
}
static int
assert_le1(struct mdoc *mdoc, int tok, int pos, int sz)
{
assert(sz <= 1);
return(1);
}
static int
assert_eq0(struct mdoc *mdoc, int tok, int pos, int sz)
{
assert(sz == 0);
return(1);
}
static int
need_eq1(struct mdoc *mdoc, int tok, int pos, int sz)
{
if (sz == 1)
return(1);
return(mdoc_err(mdoc, tok, pos, ERR_ARGS_EQ1));
}
static int
need_ge1(struct mdoc *mdoc, int tok, int pos, int sz)
{
if (sz > 0)
return(1);
return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1));
}
static int
tree_post_onlybody(struct mdoc *mdoc, int tok, int pos)
{
struct mdoc_node *n;
assert(mdoc->last);
n = mdoc->last;
assert(MDOC_BLOCK == n->type);
assert(n->child);
if (MDOC_BODY == n->child->type) {
if (n->child->child)
return(1);
return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_EMPTYBODY));
}
return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_CHILDBODY));
}
static int
tree_post_warnemptybody(struct mdoc *mdoc, int tok, int pos)
{
struct mdoc_node *n;
assert(mdoc->last);
n = mdoc->last;
assert(MDOC_BLOCK == n->type);
assert(n->child);
for (n = n->child; n; n = n->next)
if (MDOC_BODY == n->type)
break;
if (n && n->child)
return(1);
return(mdoc_warn(mdoc, tok, pos, WARN_SYNTAX_EMPTYBODY));
}
static int
tree_post_onlyhead(struct mdoc *mdoc, int tok, int pos)
{
struct mdoc_node *n;
assert(mdoc->last);
n = mdoc->last;
assert(MDOC_BLOCK == n->type);
assert(n->child);
n = n->child;
if (MDOC_HEAD != n->type)
return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_CHILDHEAD));
if (n->child)
return(1);
return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_EMPTYHEAD));
}
static int
args_an(struct mdoc *mdoc, int tok, int pos,
int sz, const char *args[],
int argc, const struct mdoc_arg *argv)
{
printf("argc=%d, sz=%d\n", argc, sz);
if (0 != argc && 0 != sz)
return(mdoc_warn(mdoc, tok, pos, WARN_ARGS_EQ0));
return(1);
}
static int
args_sh(struct mdoc *mdoc, int tok, int pos,
int sz, const char *args[],
int argc, const struct mdoc_arg *argv)
{
enum mdoc_sec sec;
sec = mdoc_atosec((size_t)sz, args);
if (SEC_CUSTOM != sec && sec < mdoc->sec_lastn)
if ( ! mdoc_warn(mdoc, tok, pos, WARN_SEC_OO))
return(0);
if (SEC_BODY == mdoc->sec_last && SEC_NAME != sec)
return(mdoc_err(mdoc, tok, pos, ERR_SEC_NAME));
return(1);
}
static int
args_bool(struct mdoc *mdoc, int tok, int pos,
int sz, const char *args[],
int argc, const struct mdoc_arg *argv)
{
int i;
for (i = 0; i < sz; i++) {
if (xstrcmp(args[i], "on"))
continue;
if (xstrcmp(args[i], "off"))
continue;
return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_ARGBAD));
}
return(1);
}
static int
tree_pre_ref(struct mdoc *mdoc, int tok, int pos)
{
struct mdoc_node *n;
assert(mdoc->last);
for (n = mdoc->last ; n; n = n->parent) {
if (MDOC_BLOCK != n->type)
continue;
if (MDOC_Rs != n->data.block.tok)
break;
return(1);
}
return(mdoc_err(mdoc, tok, pos, ERR_SCOPE_NOCTX));
}
static int
args_xr(struct mdoc *mdoc, int tok, int pos,
int sz, const char *args[],
int argc, const struct mdoc_arg *argv)
{
if (1 == sz)
return(1);
if (0 == sz)
return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1));
if (MSEC_DEFAULT == mdoc_atomsec(args[1]))
return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_ARGFORM));
return(1);
}
static int
args_nopunct(struct mdoc *mdoc, int tok, int pos,
int sz, const char *args[],
int argc, const struct mdoc_arg *argv)
{
int i;
if (0 == sz)
return(1);
i = 0;
if (ATT_DEFAULT == mdoc_atoatt(args[i]))
i++;
for ( ; i < sz; i++) {
if ( ! mdoc_isdelim(args[i]))
continue;
return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_NOPUNCT));
}
return(1);
}
static int
tree_pre_display(struct mdoc *mdoc, int tok, int pos)
{
struct mdoc_node *node;
assert(mdoc->last);
/* Displays may not be nested in other displays. */
/* LINTED */
for (node = mdoc->last; node; node = node->parent) {
if (node->type != MDOC_BLOCK)
continue;
if (node->data.block.tok != MDOC_Bd)
continue;
break;
}
if (NULL == node)
return(1);
return(mdoc_err(mdoc, tok, pos, ERR_SCOPE_NONEST));
}
int
mdoc_valid_pre(struct mdoc *mdoc, int tok, int pos,
int sz, const char *args[],
int argc, const struct mdoc_arg *argv)
{
assert(tok < MDOC_MAX);
if (mdoc_valids[tok].sz)
if ( ! (*mdoc_valids[tok].sz)(mdoc, tok, pos, sz))
return(0);
if (mdoc_valids[tok].args)
if ( ! (*mdoc_valids[tok].args)(mdoc, tok, pos,
sz, args, argc, argv))
return(0);
if (mdoc_valids[tok].tree_pre)
if ( ! (*mdoc_valids[tok].tree_pre)(mdoc, tok, pos))
return(0);
return(1);
}
int
mdoc_valid_post(struct mdoc *mdoc, int tok, int pos)
{
if (mdoc_valids[tok].tree_post)
return((*mdoc_valids[tok].tree_post)(mdoc, tok, pos));
return(1);
}
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