-/* $Id: mdoc_macro.c,v 1.84 2010/06/29 19:24:14 schwarze Exp $ */
+/* $Id: mdoc_macro.c,v 1.93 2010/07/18 17:00:26 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
+ * 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
REWIND_THIS,
REWIND_MORE,
REWIND_LATER,
- REWIND_ERROR,
+ REWIND_ERROR
};
static int blk_full(MACRO_PROT_ARGS);
int, int *, char *);
static enum mdoct lookup(enum mdoct, const char *);
static enum mdoct lookup_raw(const char *);
-static int make_pending(struct mdoc_node *, enum mdoc_type,
+static int make_pending(struct mdoc_node *, enum mdoct,
struct mdoc *, int, int);
static int phrase(struct mdoc *, int, int, char *);
static enum mdoct rew_alt(enum mdoct);
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
{ blk_full, 0 }, /* Nd */
- { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
+ { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
{ obsolete, 0 }, /* Ot */
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
const struct mdoc_node *p)
{
+ /*
+ * No matching token, no delimiting block, no broken block.
+ * This can happen when full implicit macros are called for
+ * the first time but try to rewind their previous
+ * instance anyway.
+ */
if (MDOC_ROOT == p->type)
return(MDOC_BLOCK == type &&
MDOC_EXPLICIT & mdoc_macros[tok].flags ?
REWIND_ERROR : REWIND_NONE);
+
+ /*
+ * When starting to rewind, skip plain text
+ * and nodes that have already been rewound.
+ */
if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
return(REWIND_MORE);
+ /*
+ * The easiest case: Found a matching token.
+ * This applies to both blocks and elements.
+ */
tok = rew_alt(tok);
if (tok == p->tok)
return(p->end ? REWIND_NONE :
type == p->type ? REWIND_THIS : REWIND_MORE);
+ /*
+ * While elements do require rewinding for themselves,
+ * they never affect rewinding of other nodes.
+ */
if (MDOC_ELEM == p->type)
return(REWIND_MORE);
+ /*
+ * Blocks delimited by our target token get REWIND_MORE.
+ * Blocks delimiting our target token get REWIND_NONE.
+ */
switch (tok) {
case (MDOC_Bl):
if (MDOC_It == p->tok)
if (MDOC_Op == p->tok)
return(REWIND_MORE);
break;
+ case (MDOC_Nm):
+ return(REWIND_NONE);
case (MDOC_Nd):
/* FALLTHROUGH */
case (MDOC_Ss):
break;
}
- return(p->end || (MDOC_BLOCK == p->type &&
- ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) ?
- REWIND_MORE : REWIND_LATER);
+ /*
+ * Default block rewinding rules.
+ * In particular, always skip block end markers,
+ * and let all blocks rewind Nm children.
+ */
+ if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
+ (MDOC_BLOCK == p->type &&
+ ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
+ return(REWIND_MORE);
+
+ /*
+ * Partial blocks allow delayed rewinding by default.
+ */
+ if (&blk_full != mdoc_macros[tok].fp)
+ return (REWIND_LATER);
+
+ /*
+ * Full blocks can only be rewound when matching
+ * or when there is an explicit rule.
+ */
+ return(REWIND_ERROR);
}
taker->pending = broken->pending;
}
broken->pending = breaker;
- mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos, "%s breaks %s",
- mdoc_macronames[tok], mdoc_macronames[broken->tok]);
+ mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
+ "%s breaks %s", mdoc_macronames[tok],
+ mdoc_macronames[broken->tok]);
return(1);
}
return(make_pending(n, tok, m, line, ppos));
case (REWIND_ERROR):
/* XXX Make this non-fatal. */
- mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
+ mdoc_vmsg(m, MANDOCERR_SCOPEFATAL, line, ppos,
+ "%s cannot break %s", mdoc_macronames[tok],
+ mdoc_macronames[n->tok]);
return 0;
}
break;
* knowing which symbols break this behaviour, for
* example, `. ;' shouldn't propogate the double-space.
*/
- if (mandoc_eos(p, strlen(p)))
+ if (mandoc_eos(p, strlen(p), 0))
m->last->flags |= MDOC_EOS;
}
/* Remember the start of our own body. */
if (MDOC_BODY == n->type && atok == n->tok) {
- if ( ! n->end)
+ if (ENDBODY_NOT == n->end)
body = n;
continue;
}
- if (MDOC_BLOCK != n->type)
+ if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
continue;
if (atok == n->tok) {
assert(body);
lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
ac = mdoc_args(m, line, pos, buf, tok, &p);
+ if (ARGS_PUNCT == ac)
+ break;
+
if (ARGS_ERROR == ac)
return(0);
*/
if (n && MDOC_TEXT == n->type && n->string)
- if (mandoc_eos(n->string, strlen(n->string)))
+ if (mandoc_eos(n->string, strlen(n->string), 1))
n->flags |= MDOC_EOS;
/* Up-propogate the end-of-space flag. */
* is ugly behaviour nodding its head to OpenBSD's overwhelming
* crufty use of `Op' breakage.
*/
- if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos,
- "%s broken", mdoc_macronames[tok]))
+ if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
+ line, ppos, "%s broken", mdoc_macronames[tok]))
return(0);
if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
+ if (tok == MDOC_Pp)
+ rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
+
/* Parse macro arguments. */
for (arg = NULL; ; ) {
nl = MDOC_NEWLINE & m->flags;
/* If we're not in the SYNOPSIS, go straight to in-line. */
- if (SEC_SYNOPSIS != m->lastsec)
+ if ( ! (MDOC_SYNOPSIS & m->flags))
return(in_line(m, tok, line, ppos, pos, buf));
/* If we're a nested call, same place. */
* up formatting the block scope, then child nodes will inherit
* the formatting. Be careful.
*/
-
+ if (MDOC_Nm == tok)
+ return(blk_full(m, tok, line, ppos, pos, buf));
+ assert(MDOC_Vt == tok);
return(blk_part_imp(m, tok, line, ppos, pos, buf));
}
git.ckatri.com / mandoc.git / blobdiff