. common/include/arch/i386 is not actually an imported sys/arch/i386/include but leftover Minix files; remove and move to include/ . move include/ufs to sys/ufs, where it came from, now that we have a sys/ hierarchy . move mdocml/ to external/bsd/, now we have that . single sys/arch/i386/stand/ import for boot stuff
916 lines
18 KiB
C
916 lines
18 KiB
C
/* $Vendor-Id: mdoc.c,v 1.177 2011/01/03 11:27:33 kristaps Exp $ */
|
|
/*
|
|
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
|
|
* Copyright (c) 2010 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
|
|
* 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.
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <assert.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
|
|
#include "mandoc.h"
|
|
#include "libmdoc.h"
|
|
#include "libmandoc.h"
|
|
|
|
const char *const __mdoc_macronames[MDOC_MAX] = {
|
|
"Ap", "Dd", "Dt", "Os",
|
|
"Sh", "Ss", "Pp", "D1",
|
|
"Dl", "Bd", "Ed", "Bl",
|
|
"El", "It", "Ad", "An",
|
|
"Ar", "Cd", "Cm", "Dv",
|
|
"Er", "Ev", "Ex", "Fa",
|
|
"Fd", "Fl", "Fn", "Ft",
|
|
"Ic", "In", "Li", "Nd",
|
|
"Nm", "Op", "Ot", "Pa",
|
|
"Rv", "St", "Va", "Vt",
|
|
/* LINTED */
|
|
"Xr", "%A", "%B", "%D",
|
|
/* LINTED */
|
|
"%I", "%J", "%N", "%O",
|
|
/* LINTED */
|
|
"%P", "%R", "%T", "%V",
|
|
"Ac", "Ao", "Aq", "At",
|
|
"Bc", "Bf", "Bo", "Bq",
|
|
"Bsx", "Bx", "Db", "Dc",
|
|
"Do", "Dq", "Ec", "Ef",
|
|
"Em", "Eo", "Fx", "Ms",
|
|
"No", "Ns", "Nx", "Ox",
|
|
"Pc", "Pf", "Po", "Pq",
|
|
"Qc", "Ql", "Qo", "Qq",
|
|
"Re", "Rs", "Sc", "So",
|
|
"Sq", "Sm", "Sx", "Sy",
|
|
"Tn", "Ux", "Xc", "Xo",
|
|
"Fo", "Fc", "Oo", "Oc",
|
|
"Bk", "Ek", "Bt", "Hf",
|
|
"Fr", "Ud", "Lb", "Lp",
|
|
"Lk", "Mt", "Brq", "Bro",
|
|
/* LINTED */
|
|
"Brc", "%C", "Es", "En",
|
|
/* LINTED */
|
|
"Dx", "%Q", "br", "sp",
|
|
/* LINTED */
|
|
"%U", "Ta"
|
|
};
|
|
|
|
const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
|
|
"split", "nosplit", "ragged",
|
|
"unfilled", "literal", "file",
|
|
"offset", "bullet", "dash",
|
|
"hyphen", "item", "enum",
|
|
"tag", "diag", "hang",
|
|
"ohang", "inset", "column",
|
|
"width", "compact", "std",
|
|
"filled", "words", "emphasis",
|
|
"symbolic", "nested", "centered"
|
|
};
|
|
|
|
const char * const *mdoc_macronames = __mdoc_macronames;
|
|
const char * const *mdoc_argnames = __mdoc_argnames;
|
|
|
|
static void mdoc_node_free(struct mdoc_node *);
|
|
static void mdoc_node_unlink(struct mdoc *,
|
|
struct mdoc_node *);
|
|
static void mdoc_free1(struct mdoc *);
|
|
static void mdoc_alloc1(struct mdoc *);
|
|
static struct mdoc_node *node_alloc(struct mdoc *, int, int,
|
|
enum mdoct, enum mdoc_type);
|
|
static int node_append(struct mdoc *,
|
|
struct mdoc_node *);
|
|
static int mdoc_ptext(struct mdoc *, int, char *, int);
|
|
static int mdoc_pmacro(struct mdoc *, int, char *, int);
|
|
static int mdoc_span_alloc(struct mdoc *,
|
|
const struct tbl_span *);
|
|
|
|
|
|
const struct mdoc_node *
|
|
mdoc_node(const struct mdoc *m)
|
|
{
|
|
|
|
assert( ! (MDOC_HALT & m->flags));
|
|
return(m->first);
|
|
}
|
|
|
|
|
|
const struct mdoc_meta *
|
|
mdoc_meta(const struct mdoc *m)
|
|
{
|
|
|
|
assert( ! (MDOC_HALT & m->flags));
|
|
return(&m->meta);
|
|
}
|
|
|
|
|
|
/*
|
|
* Frees volatile resources (parse tree, meta-data, fields).
|
|
*/
|
|
static void
|
|
mdoc_free1(struct mdoc *mdoc)
|
|
{
|
|
|
|
if (mdoc->first)
|
|
mdoc_node_delete(mdoc, mdoc->first);
|
|
if (mdoc->meta.title)
|
|
free(mdoc->meta.title);
|
|
if (mdoc->meta.os)
|
|
free(mdoc->meta.os);
|
|
if (mdoc->meta.name)
|
|
free(mdoc->meta.name);
|
|
if (mdoc->meta.arch)
|
|
free(mdoc->meta.arch);
|
|
if (mdoc->meta.vol)
|
|
free(mdoc->meta.vol);
|
|
if (mdoc->meta.msec)
|
|
free(mdoc->meta.msec);
|
|
}
|
|
|
|
|
|
/*
|
|
* Allocate all volatile resources (parse tree, meta-data, fields).
|
|
*/
|
|
static void
|
|
mdoc_alloc1(struct mdoc *mdoc)
|
|
{
|
|
|
|
memset(&mdoc->meta, 0, sizeof(struct mdoc_meta));
|
|
mdoc->flags = 0;
|
|
mdoc->lastnamed = mdoc->lastsec = SEC_NONE;
|
|
mdoc->last = mandoc_calloc(1, sizeof(struct mdoc_node));
|
|
mdoc->first = mdoc->last;
|
|
mdoc->last->type = MDOC_ROOT;
|
|
mdoc->next = MDOC_NEXT_CHILD;
|
|
}
|
|
|
|
|
|
/*
|
|
* Free up volatile resources (see mdoc_free1()) then re-initialises the
|
|
* data with mdoc_alloc1(). After invocation, parse data has been reset
|
|
* and the parser is ready for re-invocation on a new tree; however,
|
|
* cross-parse non-volatile data is kept intact.
|
|
*/
|
|
void
|
|
mdoc_reset(struct mdoc *mdoc)
|
|
{
|
|
|
|
mdoc_free1(mdoc);
|
|
mdoc_alloc1(mdoc);
|
|
}
|
|
|
|
|
|
/*
|
|
* Completely free up all volatile and non-volatile parse resources.
|
|
* After invocation, the pointer is no longer usable.
|
|
*/
|
|
void
|
|
mdoc_free(struct mdoc *mdoc)
|
|
{
|
|
|
|
mdoc_free1(mdoc);
|
|
free(mdoc);
|
|
}
|
|
|
|
|
|
/*
|
|
* Allocate volatile and non-volatile parse resources.
|
|
*/
|
|
struct mdoc *
|
|
mdoc_alloc(struct regset *regs, void *data, mandocmsg msg)
|
|
{
|
|
struct mdoc *p;
|
|
|
|
p = mandoc_calloc(1, sizeof(struct mdoc));
|
|
|
|
p->msg = msg;
|
|
p->data = data;
|
|
p->regs = regs;
|
|
|
|
mdoc_hash_init();
|
|
mdoc_alloc1(p);
|
|
return(p);
|
|
}
|
|
|
|
|
|
/*
|
|
* Climb back up the parse tree, validating open scopes. Mostly calls
|
|
* through to macro_end() in macro.c.
|
|
*/
|
|
int
|
|
mdoc_endparse(struct mdoc *m)
|
|
{
|
|
|
|
assert( ! (MDOC_HALT & m->flags));
|
|
if (mdoc_macroend(m))
|
|
return(1);
|
|
m->flags |= MDOC_HALT;
|
|
return(0);
|
|
}
|
|
|
|
int
|
|
mdoc_addspan(struct mdoc *m, const struct tbl_span *sp)
|
|
{
|
|
|
|
assert( ! (MDOC_HALT & m->flags));
|
|
|
|
/* No text before an initial macro. */
|
|
|
|
if (SEC_NONE == m->lastnamed) {
|
|
/* FIXME: grab from span. */
|
|
mdoc_pmsg(m, 0, 0, MANDOCERR_NOTEXT);
|
|
return(1);
|
|
}
|
|
|
|
return(mdoc_span_alloc(m, sp));
|
|
}
|
|
|
|
|
|
/*
|
|
* Main parse routine. Parses a single line -- really just hands off to
|
|
* the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
|
|
*/
|
|
int
|
|
mdoc_parseln(struct mdoc *m, int ln, char *buf, int offs)
|
|
{
|
|
|
|
assert( ! (MDOC_HALT & m->flags));
|
|
|
|
m->flags |= MDOC_NEWLINE;
|
|
|
|
/*
|
|
* Let the roff nS register switch SYNOPSIS mode early,
|
|
* such that the parser knows at all times
|
|
* whether this mode is on or off.
|
|
* Note that this mode is also switched by the Sh macro.
|
|
*/
|
|
if (m->regs->regs[(int)REG_nS].set) {
|
|
if (m->regs->regs[(int)REG_nS].v.u)
|
|
m->flags |= MDOC_SYNOPSIS;
|
|
else
|
|
m->flags &= ~MDOC_SYNOPSIS;
|
|
}
|
|
|
|
return(('.' == buf[offs] || '\'' == buf[offs]) ?
|
|
mdoc_pmacro(m, ln, buf, offs) :
|
|
mdoc_ptext(m, ln, buf, offs));
|
|
}
|
|
|
|
|
|
int
|
|
mdoc_vmsg(struct mdoc *mdoc, enum mandocerr t,
|
|
int ln, int pos, const char *fmt, ...)
|
|
{
|
|
char buf[256];
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
|
|
va_end(ap);
|
|
|
|
return((*mdoc->msg)(t, mdoc->data, ln, pos, buf));
|
|
}
|
|
|
|
|
|
int
|
|
mdoc_macro(MACRO_PROT_ARGS)
|
|
{
|
|
assert(tok < MDOC_MAX);
|
|
|
|
/* If we're in the body, deny prologue calls. */
|
|
|
|
if (MDOC_PROLOGUE & mdoc_macros[tok].flags &&
|
|
MDOC_PBODY & m->flags) {
|
|
mdoc_pmsg(m, line, ppos, MANDOCERR_BADBODY);
|
|
return(1);
|
|
}
|
|
|
|
/* If we're in the prologue, deny "body" macros. */
|
|
|
|
if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
|
|
! (MDOC_PBODY & m->flags)) {
|
|
mdoc_pmsg(m, line, ppos, MANDOCERR_BADPROLOG);
|
|
if (NULL == m->meta.msec)
|
|
m->meta.msec = mandoc_strdup("1");
|
|
if (NULL == m->meta.title)
|
|
m->meta.title = mandoc_strdup("UNKNOWN");
|
|
if (NULL == m->meta.vol)
|
|
m->meta.vol = mandoc_strdup("LOCAL");
|
|
if (NULL == m->meta.os)
|
|
m->meta.os = mandoc_strdup("LOCAL");
|
|
if (0 == m->meta.date)
|
|
m->meta.date = time(NULL);
|
|
m->flags |= MDOC_PBODY;
|
|
}
|
|
|
|
return((*mdoc_macros[tok].fp)(m, tok, line, ppos, pos, buf));
|
|
}
|
|
|
|
|
|
static int
|
|
node_append(struct mdoc *mdoc, struct mdoc_node *p)
|
|
{
|
|
|
|
assert(mdoc->last);
|
|
assert(mdoc->first);
|
|
assert(MDOC_ROOT != p->type);
|
|
|
|
switch (mdoc->next) {
|
|
case (MDOC_NEXT_SIBLING):
|
|
mdoc->last->next = p;
|
|
p->prev = mdoc->last;
|
|
p->parent = mdoc->last->parent;
|
|
break;
|
|
case (MDOC_NEXT_CHILD):
|
|
mdoc->last->child = p;
|
|
p->parent = mdoc->last;
|
|
break;
|
|
default:
|
|
abort();
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
p->parent->nchild++;
|
|
|
|
/*
|
|
* Copy over the normalised-data pointer of our parent. Not
|
|
* everybody has one, but copying a null pointer is fine.
|
|
*/
|
|
|
|
switch (p->type) {
|
|
case (MDOC_BODY):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_TAIL):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_HEAD):
|
|
p->norm = p->parent->norm;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if ( ! mdoc_valid_pre(mdoc, p))
|
|
return(0);
|
|
|
|
switch (p->type) {
|
|
case (MDOC_HEAD):
|
|
assert(MDOC_BLOCK == p->parent->type);
|
|
p->parent->head = p;
|
|
break;
|
|
case (MDOC_TAIL):
|
|
assert(MDOC_BLOCK == p->parent->type);
|
|
p->parent->tail = p;
|
|
break;
|
|
case (MDOC_BODY):
|
|
if (p->end)
|
|
break;
|
|
assert(MDOC_BLOCK == p->parent->type);
|
|
p->parent->body = p;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
mdoc->last = p;
|
|
|
|
switch (p->type) {
|
|
case (MDOC_TBL):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_TEXT):
|
|
if ( ! mdoc_valid_post(mdoc))
|
|
return(0);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return(1);
|
|
}
|
|
|
|
|
|
static struct mdoc_node *
|
|
node_alloc(struct mdoc *m, int line, int pos,
|
|
enum mdoct tok, enum mdoc_type type)
|
|
{
|
|
struct mdoc_node *p;
|
|
|
|
p = mandoc_calloc(1, sizeof(struct mdoc_node));
|
|
p->sec = m->lastsec;
|
|
p->line = line;
|
|
p->pos = pos;
|
|
p->tok = tok;
|
|
p->type = type;
|
|
|
|
/* Flag analysis. */
|
|
|
|
if (MDOC_SYNOPSIS & m->flags)
|
|
p->flags |= MDOC_SYNPRETTY;
|
|
else
|
|
p->flags &= ~MDOC_SYNPRETTY;
|
|
if (MDOC_NEWLINE & m->flags)
|
|
p->flags |= MDOC_LINE;
|
|
m->flags &= ~MDOC_NEWLINE;
|
|
|
|
return(p);
|
|
}
|
|
|
|
|
|
int
|
|
mdoc_tail_alloc(struct mdoc *m, int line, int pos, enum mdoct tok)
|
|
{
|
|
struct mdoc_node *p;
|
|
|
|
p = node_alloc(m, line, pos, tok, MDOC_TAIL);
|
|
if ( ! node_append(m, p))
|
|
return(0);
|
|
m->next = MDOC_NEXT_CHILD;
|
|
return(1);
|
|
}
|
|
|
|
|
|
int
|
|
mdoc_head_alloc(struct mdoc *m, int line, int pos, enum mdoct tok)
|
|
{
|
|
struct mdoc_node *p;
|
|
|
|
assert(m->first);
|
|
assert(m->last);
|
|
|
|
p = node_alloc(m, line, pos, tok, MDOC_HEAD);
|
|
if ( ! node_append(m, p))
|
|
return(0);
|
|
m->next = MDOC_NEXT_CHILD;
|
|
return(1);
|
|
}
|
|
|
|
|
|
int
|
|
mdoc_body_alloc(struct mdoc *m, int line, int pos, enum mdoct tok)
|
|
{
|
|
struct mdoc_node *p;
|
|
|
|
p = node_alloc(m, line, pos, tok, MDOC_BODY);
|
|
if ( ! node_append(m, p))
|
|
return(0);
|
|
m->next = MDOC_NEXT_CHILD;
|
|
return(1);
|
|
}
|
|
|
|
|
|
int
|
|
mdoc_endbody_alloc(struct mdoc *m, int line, int pos, enum mdoct tok,
|
|
struct mdoc_node *body, enum mdoc_endbody end)
|
|
{
|
|
struct mdoc_node *p;
|
|
|
|
p = node_alloc(m, line, pos, tok, MDOC_BODY);
|
|
p->pending = body;
|
|
p->end = end;
|
|
if ( ! node_append(m, p))
|
|
return(0);
|
|
m->next = MDOC_NEXT_SIBLING;
|
|
return(1);
|
|
}
|
|
|
|
|
|
int
|
|
mdoc_block_alloc(struct mdoc *m, int line, int pos,
|
|
enum mdoct tok, struct mdoc_arg *args)
|
|
{
|
|
struct mdoc_node *p;
|
|
|
|
p = node_alloc(m, line, pos, tok, MDOC_BLOCK);
|
|
p->args = args;
|
|
if (p->args)
|
|
(args->refcnt)++;
|
|
|
|
switch (tok) {
|
|
case (MDOC_Bd):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bf):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Bl):
|
|
/* FALLTHROUGH */
|
|
case (MDOC_Rs):
|
|
p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if ( ! node_append(m, p))
|
|
return(0);
|
|
m->next = MDOC_NEXT_CHILD;
|
|
return(1);
|
|
}
|
|
|
|
|
|
int
|
|
mdoc_elem_alloc(struct mdoc *m, int line, int pos,
|
|
enum mdoct tok, struct mdoc_arg *args)
|
|
{
|
|
struct mdoc_node *p;
|
|
|
|
p = node_alloc(m, line, pos, tok, MDOC_ELEM);
|
|
p->args = args;
|
|
if (p->args)
|
|
(args->refcnt)++;
|
|
|
|
switch (tok) {
|
|
case (MDOC_An):
|
|
p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if ( ! node_append(m, p))
|
|
return(0);
|
|
m->next = MDOC_NEXT_CHILD;
|
|
return(1);
|
|
}
|
|
|
|
static int
|
|
mdoc_span_alloc(struct mdoc *m, const struct tbl_span *sp)
|
|
{
|
|
struct mdoc_node *n;
|
|
|
|
/* FIXME: grab from tbl_span. */
|
|
n = node_alloc(m, 0, 0, MDOC_MAX, MDOC_TBL);
|
|
n->span = sp;
|
|
|
|
if ( ! node_append(m, n))
|
|
return(0);
|
|
|
|
m->next = MDOC_NEXT_SIBLING;
|
|
return(1);
|
|
}
|
|
|
|
|
|
int
|
|
mdoc_word_alloc(struct mdoc *m, int line, int pos, const char *p)
|
|
{
|
|
struct mdoc_node *n;
|
|
size_t sv, len;
|
|
|
|
len = strlen(p);
|
|
|
|
n = node_alloc(m, line, pos, MDOC_MAX, MDOC_TEXT);
|
|
n->string = mandoc_malloc(len + 1);
|
|
sv = strlcpy(n->string, p, len + 1);
|
|
|
|
/* Prohibit truncation. */
|
|
assert(sv < len + 1);
|
|
|
|
if ( ! node_append(m, n))
|
|
return(0);
|
|
|
|
m->next = MDOC_NEXT_SIBLING;
|
|
return(1);
|
|
}
|
|
|
|
|
|
static void
|
|
mdoc_node_free(struct mdoc_node *p)
|
|
{
|
|
|
|
if (MDOC_BLOCK == p->type || MDOC_ELEM == p->type)
|
|
free(p->norm);
|
|
if (p->string)
|
|
free(p->string);
|
|
if (p->args)
|
|
mdoc_argv_free(p->args);
|
|
free(p);
|
|
}
|
|
|
|
|
|
static void
|
|
mdoc_node_unlink(struct mdoc *m, struct mdoc_node *n)
|
|
{
|
|
|
|
/* Adjust siblings. */
|
|
|
|
if (n->prev)
|
|
n->prev->next = n->next;
|
|
if (n->next)
|
|
n->next->prev = n->prev;
|
|
|
|
/* Adjust parent. */
|
|
|
|
if (n->parent) {
|
|
n->parent->nchild--;
|
|
if (n->parent->child == n)
|
|
n->parent->child = n->prev ? n->prev : n->next;
|
|
if (n->parent->last == n)
|
|
n->parent->last = n->prev ? n->prev : NULL;
|
|
}
|
|
|
|
/* Adjust parse point, if applicable. */
|
|
|
|
if (m && m->last == n) {
|
|
if (n->prev) {
|
|
m->last = n->prev;
|
|
m->next = MDOC_NEXT_SIBLING;
|
|
} else {
|
|
m->last = n->parent;
|
|
m->next = MDOC_NEXT_CHILD;
|
|
}
|
|
}
|
|
|
|
if (m && m->first == n)
|
|
m->first = NULL;
|
|
}
|
|
|
|
|
|
void
|
|
mdoc_node_delete(struct mdoc *m, struct mdoc_node *p)
|
|
{
|
|
|
|
while (p->child) {
|
|
assert(p->nchild);
|
|
mdoc_node_delete(m, p->child);
|
|
}
|
|
assert(0 == p->nchild);
|
|
|
|
mdoc_node_unlink(m, p);
|
|
mdoc_node_free(p);
|
|
}
|
|
|
|
|
|
/*
|
|
* Parse free-form text, that is, a line that does not begin with the
|
|
* control character.
|
|
*/
|
|
static int
|
|
mdoc_ptext(struct mdoc *m, int line, char *buf, int offs)
|
|
{
|
|
char *c, *ws, *end;
|
|
struct mdoc_node *n;
|
|
|
|
/* Ignore bogus comments. */
|
|
|
|
if ('\\' == buf[offs] &&
|
|
'.' == buf[offs + 1] &&
|
|
'"' == buf[offs + 2]) {
|
|
mdoc_pmsg(m, line, offs, MANDOCERR_BADCOMMENT);
|
|
return(1);
|
|
}
|
|
|
|
/* No text before an initial macro. */
|
|
|
|
if (SEC_NONE == m->lastnamed) {
|
|
mdoc_pmsg(m, line, offs, MANDOCERR_NOTEXT);
|
|
return(1);
|
|
}
|
|
|
|
assert(m->last);
|
|
n = m->last;
|
|
|
|
/*
|
|
* Divert directly to list processing if we're encountering a
|
|
* columnar MDOC_BLOCK with or without a prior MDOC_BLOCK entry
|
|
* (a MDOC_BODY means it's already open, in which case we should
|
|
* process within its context in the normal way).
|
|
*/
|
|
|
|
if (MDOC_Bl == n->tok && MDOC_BODY == n->type &&
|
|
LIST_column == n->norm->Bl.type) {
|
|
/* `Bl' is open without any children. */
|
|
m->flags |= MDOC_FREECOL;
|
|
return(mdoc_macro(m, MDOC_It, line, offs, &offs, buf));
|
|
}
|
|
|
|
if (MDOC_It == n->tok && MDOC_BLOCK == n->type &&
|
|
NULL != n->parent &&
|
|
MDOC_Bl == n->parent->tok &&
|
|
LIST_column == n->parent->norm->Bl.type) {
|
|
/* `Bl' has block-level `It' children. */
|
|
m->flags |= MDOC_FREECOL;
|
|
return(mdoc_macro(m, MDOC_It, line, offs, &offs, buf));
|
|
}
|
|
|
|
/*
|
|
* Search for the beginning of unescaped trailing whitespace (ws)
|
|
* and for the first character not to be output (end).
|
|
*/
|
|
|
|
/* FIXME: replace with strcspn(). */
|
|
ws = NULL;
|
|
for (c = end = buf + offs; *c; c++) {
|
|
switch (*c) {
|
|
case '-':
|
|
if (mandoc_hyph(buf + offs, c))
|
|
*c = ASCII_HYPH;
|
|
ws = NULL;
|
|
break;
|
|
case ' ':
|
|
if (NULL == ws)
|
|
ws = c;
|
|
continue;
|
|
case '\t':
|
|
/*
|
|
* Always warn about trailing tabs,
|
|
* even outside literal context,
|
|
* where they should be put on the next line.
|
|
*/
|
|
if (NULL == ws)
|
|
ws = c;
|
|
/*
|
|
* Strip trailing tabs in literal context only;
|
|
* outside, they affect the next line.
|
|
*/
|
|
if (MDOC_LITERAL & m->flags)
|
|
continue;
|
|
break;
|
|
case '\\':
|
|
/* Skip the escaped character, too, if any. */
|
|
if (c[1])
|
|
c++;
|
|
/* FALLTHROUGH */
|
|
default:
|
|
ws = NULL;
|
|
break;
|
|
}
|
|
end = c + 1;
|
|
}
|
|
*end = '\0';
|
|
|
|
if (ws)
|
|
mdoc_pmsg(m, line, (int)(ws-buf), MANDOCERR_EOLNSPACE);
|
|
|
|
if ('\0' == buf[offs] && ! (MDOC_LITERAL & m->flags)) {
|
|
mdoc_pmsg(m, line, (int)(c-buf), MANDOCERR_NOBLANKLN);
|
|
|
|
/*
|
|
* Insert a `sp' in the case of a blank line. Technically,
|
|
* blank lines aren't allowed, but enough manuals assume this
|
|
* behaviour that we want to work around it.
|
|
*/
|
|
if ( ! mdoc_elem_alloc(m, line, offs, MDOC_sp, NULL))
|
|
return(0);
|
|
|
|
m->next = MDOC_NEXT_SIBLING;
|
|
return(1);
|
|
}
|
|
|
|
if ( ! mdoc_word_alloc(m, line, offs, buf+offs))
|
|
return(0);
|
|
|
|
if (MDOC_LITERAL & m->flags)
|
|
return(1);
|
|
|
|
/*
|
|
* End-of-sentence check. If the last character is an unescaped
|
|
* EOS character, then flag the node as being the end of a
|
|
* sentence. The front-end will know how to interpret this.
|
|
*/
|
|
|
|
assert(buf < end);
|
|
|
|
if (mandoc_eos(buf+offs, (size_t)(end-buf-offs), 0))
|
|
m->last->flags |= MDOC_EOS;
|
|
|
|
return(1);
|
|
}
|
|
|
|
|
|
/*
|
|
* Parse a macro line, that is, a line beginning with the control
|
|
* character.
|
|
*/
|
|
static int
|
|
mdoc_pmacro(struct mdoc *m, int ln, char *buf, int offs)
|
|
{
|
|
enum mdoct tok;
|
|
int i, j, sv;
|
|
char mac[5];
|
|
struct mdoc_node *n;
|
|
|
|
/* Empty lines are ignored. */
|
|
|
|
offs++;
|
|
|
|
if ('\0' == buf[offs])
|
|
return(1);
|
|
|
|
i = offs;
|
|
|
|
/* Accept tabs/whitespace after the initial control char. */
|
|
|
|
if (' ' == buf[i] || '\t' == buf[i]) {
|
|
i++;
|
|
while (buf[i] && (' ' == buf[i] || '\t' == buf[i]))
|
|
i++;
|
|
if ('\0' == buf[i])
|
|
return(1);
|
|
}
|
|
|
|
sv = i;
|
|
|
|
/*
|
|
* Copy the first word into a nil-terminated buffer.
|
|
* Stop copying when a tab, space, or eoln is encountered.
|
|
*/
|
|
|
|
j = 0;
|
|
while (j < 4 && '\0' != buf[i] && ' ' != buf[i] && '\t' != buf[i])
|
|
mac[j++] = buf[i++];
|
|
mac[j] = '\0';
|
|
|
|
tok = (j > 1 || j < 4) ? mdoc_hash_find(mac) : MDOC_MAX;
|
|
if (MDOC_MAX == tok) {
|
|
mdoc_vmsg(m, MANDOCERR_MACRO, ln, sv, "%s", buf + sv - 1);
|
|
return(1);
|
|
}
|
|
|
|
/* Disregard the first trailing tab, if applicable. */
|
|
|
|
if ('\t' == buf[i])
|
|
i++;
|
|
|
|
/* Jump to the next non-whitespace word. */
|
|
|
|
while (buf[i] && ' ' == buf[i])
|
|
i++;
|
|
|
|
/*
|
|
* Trailing whitespace. Note that tabs are allowed to be passed
|
|
* into the parser as "text", so we only warn about spaces here.
|
|
*/
|
|
|
|
if ('\0' == buf[i] && ' ' == buf[i - 1])
|
|
mdoc_pmsg(m, ln, i - 1, MANDOCERR_EOLNSPACE);
|
|
|
|
/*
|
|
* If an initial macro or a list invocation, divert directly
|
|
* into macro processing.
|
|
*/
|
|
|
|
if (NULL == m->last || MDOC_It == tok || MDOC_El == tok) {
|
|
if ( ! mdoc_macro(m, tok, ln, sv, &i, buf))
|
|
goto err;
|
|
return(1);
|
|
}
|
|
|
|
n = m->last;
|
|
assert(m->last);
|
|
|
|
/*
|
|
* If the first macro of a `Bl -column', open an `It' block
|
|
* context around the parsed macro.
|
|
*/
|
|
|
|
if (MDOC_Bl == n->tok && MDOC_BODY == n->type &&
|
|
LIST_column == n->norm->Bl.type) {
|
|
m->flags |= MDOC_FREECOL;
|
|
if ( ! mdoc_macro(m, MDOC_It, ln, sv, &sv, buf))
|
|
goto err;
|
|
return(1);
|
|
}
|
|
|
|
/*
|
|
* If we're following a block-level `It' within a `Bl -column'
|
|
* context (perhaps opened in the above block or in ptext()),
|
|
* then open an `It' block context around the parsed macro.
|
|
*/
|
|
|
|
if (MDOC_It == n->tok && MDOC_BLOCK == n->type &&
|
|
NULL != n->parent &&
|
|
MDOC_Bl == n->parent->tok &&
|
|
LIST_column == n->parent->norm->Bl.type) {
|
|
m->flags |= MDOC_FREECOL;
|
|
if ( ! mdoc_macro(m, MDOC_It, ln, sv, &sv, buf))
|
|
goto err;
|
|
return(1);
|
|
}
|
|
|
|
/* Normal processing of a macro. */
|
|
|
|
if ( ! mdoc_macro(m, tok, ln, sv, &i, buf))
|
|
goto err;
|
|
|
|
return(1);
|
|
|
|
err: /* Error out. */
|
|
|
|
m->flags |= MDOC_HALT;
|
|
return(0);
|
|
}
|
|
|
|
|