===================================================================
RCS file: /cvs/mandoc/mdoc_argv.c,v
retrieving revision 1.48
retrieving revision 1.76
diff -u -p -r1.48 -r1.76
--- mandoc/mdoc_argv.c	2010/05/15 08:54:04	1.48
+++ mandoc/mdoc_argv.c	2011/04/19 16:38:48	1.76
@@ -1,6 +1,6 @@
-/*	$Id: mdoc_argv.c,v 1.48 2010/05/15 08:54:04 schwarze Exp $ */
+/*	$Id: mdoc_argv.c,v 1.76 2011/04/19 16:38:48 kristaps Exp $ */
 /*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -26,27 +26,32 @@
 #include <stdio.h>
 #include <string.h>
 
+#include "mdoc.h"
+#include "mandoc.h"
 #include "libmdoc.h"
 #include "libmandoc.h"
 
-/*
- * Routines to parse arguments of macros.  Arguments follow the syntax
- * of `-arg [val [valN...]]'.  Arguments come in all types:  quoted
- * arguments, multiple arguments per value, no-value arguments, etc.
- *
- * There's no limit to the number or arguments that may be allocated.
- */
+#define	MULTI_STEP	 5 /* pre-allocate argument values */
+#define	DELIMSZ	  	 6 /* max possible size of a delimiter */
 
-#define	ARGV_NONE	(1 << 0)
-#define	ARGV_SINGLE	(1 << 1)
-#define	ARGV_MULTI	(1 << 2)
-#define	ARGV_OPT_SINGLE	(1 << 3)
+enum	argsflag {
+	ARGSFL_NONE = 0,
+	ARGSFL_DELIM, /* handle delimiters of [[::delim::][ ]+]+ */
+	ARGSFL_TABSEP /* handle tab/`Ta' separated phrases */
+};
 
-#define	MULTI_STEP	 5
+enum	argvflag {
+	ARGV_NONE, /* no args to flag (e.g., -split) */
+	ARGV_SINGLE, /* one arg to flag (e.g., -file xxx)  */
+	ARGV_MULTI, /* multiple args (e.g., -column xxx yyy) */
+	ARGV_OPT_SINGLE /* optional arg (e.g., -offset [xxx]) */
+};
 
-static	int		 argv_a2arg(enum mdoct, const char *);
+static	enum mdocargt	 argv_a2arg(enum mdoct, const char *);
 static	enum margserr	 args(struct mdoc *, int, int *, 
-				char *, int, char **);
+				char *, enum argsflag, char **);
+static	int		 args_checkpunct(struct mdoc *,
+				const char *, int, int);
 static	int		 argv(struct mdoc *, int, 
 				struct mdoc_argv *, int *, char *);
 static	int		 argv_single(struct mdoc *, int, 
@@ -55,10 +60,9 @@ static	int		 argv_opt_single(struct mdoc *, int, 
 				struct mdoc_argv *, int *, char *);
 static	int		 argv_multi(struct mdoc *, int, 
 				struct mdoc_argv *, int *, char *);
+static	void		 argn_free(struct mdoc_arg *, int);
 
-/* Per-argument flags. */
-
-static	int mdoc_argvflags[MDOC_ARG_MAX] = {
+static	const enum argvflag argvflags[MDOC_ARG_MAX] = {
 	ARGV_NONE,	/* MDOC_Split */
 	ARGV_NONE,	/* MDOC_Nosplit */
 	ARGV_NONE,	/* MDOC_Ragged */
@@ -87,131 +91,185 @@ static	int mdoc_argvflags[MDOC_ARG_MAX] = {
 	ARGV_NONE	/* MDOC_Symbolic */
 };
 
-static	int mdoc_argflags[MDOC_MAX] = {
-	0, /* Ap */
-	0, /* Dd */
-	0, /* Dt */
-	0, /* Os */
-	0, /* Sh */
-	0, /* Ss */ 
-	ARGS_DELIM, /* Pp */ 
-	ARGS_DELIM, /* D1 */
-	ARGS_DELIM, /* Dl */
-	0, /* Bd */
-	0, /* Ed */
-	0, /* Bl */
-	0, /* El */
-	0, /* It */
-	ARGS_DELIM, /* Ad */ 
-	ARGS_DELIM, /* An */
-	ARGS_DELIM, /* Ar */
-	0, /* Cd */
-	ARGS_DELIM, /* Cm */
-	ARGS_DELIM, /* Dv */ 
-	ARGS_DELIM, /* Er */ 
-	ARGS_DELIM, /* Ev */ 
-	0, /* Ex */
-	ARGS_DELIM, /* Fa */ 
-	0, /* Fd */ 
-	ARGS_DELIM, /* Fl */
-	ARGS_DELIM, /* Fn */ 
-	ARGS_DELIM, /* Ft */ 
-	ARGS_DELIM, /* Ic */ 
-	0, /* In */ 
-	ARGS_DELIM, /* Li */
-	0, /* Nd */ 
-	ARGS_DELIM, /* Nm */ 
-	ARGS_DELIM, /* Op */
-	0, /* Ot */
-	ARGS_DELIM, /* Pa */
-	0, /* Rv */
-	ARGS_DELIM, /* St */ 
-	ARGS_DELIM, /* Va */
-	ARGS_DELIM, /* Vt */ 
-	ARGS_DELIM, /* Xr */
-	0, /* %A */
-	0, /* %B */
-	0, /* %D */
-	0, /* %I */
-	0, /* %J */
-	0, /* %N */
-	0, /* %O */
-	0, /* %P */
-	0, /* %R */
-	0, /* %T */
-	0, /* %V */
-	ARGS_DELIM, /* Ac */
-	0, /* Ao */
-	ARGS_DELIM, /* Aq */
-	ARGS_DELIM, /* At */
-	ARGS_DELIM, /* Bc */
-	0, /* Bf */ 
-	0, /* Bo */
-	ARGS_DELIM, /* Bq */
-	ARGS_DELIM, /* Bsx */
-	ARGS_DELIM, /* Bx */
-	0, /* Db */
-	ARGS_DELIM, /* Dc */
-	0, /* Do */
-	ARGS_DELIM, /* Dq */
-	ARGS_DELIM, /* Ec */
-	0, /* Ef */
-	ARGS_DELIM, /* Em */ 
-	0, /* Eo */
-	ARGS_DELIM, /* Fx */
-	ARGS_DELIM, /* Ms */
-	ARGS_DELIM, /* No */
-	ARGS_DELIM, /* Ns */
-	ARGS_DELIM, /* Nx */
-	ARGS_DELIM, /* Ox */
-	ARGS_DELIM, /* Pc */
-	ARGS_DELIM, /* Pf */
-	0, /* Po */
-	ARGS_DELIM, /* Pq */
-	ARGS_DELIM, /* Qc */
-	ARGS_DELIM, /* Ql */
-	0, /* Qo */
-	ARGS_DELIM, /* Qq */
-	0, /* Re */
-	0, /* Rs */
-	ARGS_DELIM, /* Sc */
-	0, /* So */
-	ARGS_DELIM, /* Sq */
-	0, /* Sm */
-	ARGS_DELIM, /* Sx */
-	ARGS_DELIM, /* Sy */
-	ARGS_DELIM, /* Tn */
-	ARGS_DELIM, /* Ux */
-	ARGS_DELIM, /* Xc */
-	0, /* Xo */
-	0, /* Fo */ 
-	0, /* Fc */ 
-	0, /* Oo */
-	ARGS_DELIM, /* Oc */
-	0, /* Bk */
-	0, /* Ek */
-	0, /* Bt */
-	0, /* Hf */
-	0, /* Fr */
-	0, /* Ud */
-	0, /* Lb */
-	ARGS_DELIM, /* Lp */
-	ARGS_DELIM, /* Lk */
-	ARGS_DELIM, /* Mt */
-	ARGS_DELIM, /* Brq */
-	0, /* Bro */
-	ARGS_DELIM, /* Brc */
-	0, /* %C */
-	0, /* Es */
-	0, /* En */
-	0, /* Dx */
-	0, /* %Q */
-	0, /* br */
-	0, /* sp */
-	0, /* %U */
+static	const enum argsflag argflags[MDOC_MAX] = {
+	ARGSFL_NONE, /* Ap */
+	ARGSFL_NONE, /* Dd */
+	ARGSFL_NONE, /* Dt */
+	ARGSFL_NONE, /* Os */
+	ARGSFL_NONE, /* Sh */
+	ARGSFL_NONE, /* Ss */ 
+	ARGSFL_NONE, /* Pp */ 
+	ARGSFL_DELIM, /* D1 */
+	ARGSFL_DELIM, /* Dl */
+	ARGSFL_NONE, /* Bd */
+	ARGSFL_NONE, /* Ed */
+	ARGSFL_NONE, /* Bl */
+	ARGSFL_NONE, /* El */
+	ARGSFL_NONE, /* It */
+	ARGSFL_DELIM, /* Ad */ 
+	ARGSFL_DELIM, /* An */
+	ARGSFL_DELIM, /* Ar */
+	ARGSFL_NONE, /* Cd */
+	ARGSFL_DELIM, /* Cm */
+	ARGSFL_DELIM, /* Dv */ 
+	ARGSFL_DELIM, /* Er */ 
+	ARGSFL_DELIM, /* Ev */ 
+	ARGSFL_NONE, /* Ex */
+	ARGSFL_DELIM, /* Fa */ 
+	ARGSFL_NONE, /* Fd */ 
+	ARGSFL_DELIM, /* Fl */
+	ARGSFL_DELIM, /* Fn */ 
+	ARGSFL_DELIM, /* Ft */ 
+	ARGSFL_DELIM, /* Ic */ 
+	ARGSFL_NONE, /* In */ 
+	ARGSFL_DELIM, /* Li */
+	ARGSFL_NONE, /* Nd */ 
+	ARGSFL_DELIM, /* Nm */ 
+	ARGSFL_DELIM, /* Op */
+	ARGSFL_NONE, /* Ot */
+	ARGSFL_DELIM, /* Pa */
+	ARGSFL_NONE, /* Rv */
+	ARGSFL_DELIM, /* St */ 
+	ARGSFL_DELIM, /* Va */
+	ARGSFL_DELIM, /* Vt */ 
+	ARGSFL_DELIM, /* Xr */
+	ARGSFL_NONE, /* %A */
+	ARGSFL_NONE, /* %B */
+	ARGSFL_NONE, /* %D */
+	ARGSFL_NONE, /* %I */
+	ARGSFL_NONE, /* %J */
+	ARGSFL_NONE, /* %N */
+	ARGSFL_NONE, /* %O */
+	ARGSFL_NONE, /* %P */
+	ARGSFL_NONE, /* %R */
+	ARGSFL_NONE, /* %T */
+	ARGSFL_NONE, /* %V */
+	ARGSFL_DELIM, /* Ac */
+	ARGSFL_NONE, /* Ao */
+	ARGSFL_DELIM, /* Aq */
+	ARGSFL_DELIM, /* At */
+	ARGSFL_DELIM, /* Bc */
+	ARGSFL_NONE, /* Bf */ 
+	ARGSFL_NONE, /* Bo */
+	ARGSFL_DELIM, /* Bq */
+	ARGSFL_DELIM, /* Bsx */
+	ARGSFL_DELIM, /* Bx */
+	ARGSFL_NONE, /* Db */
+	ARGSFL_DELIM, /* Dc */
+	ARGSFL_NONE, /* Do */
+	ARGSFL_DELIM, /* Dq */
+	ARGSFL_DELIM, /* Ec */
+	ARGSFL_NONE, /* Ef */
+	ARGSFL_DELIM, /* Em */ 
+	ARGSFL_NONE, /* Eo */
+	ARGSFL_DELIM, /* Fx */
+	ARGSFL_DELIM, /* Ms */
+	ARGSFL_DELIM, /* No */
+	ARGSFL_DELIM, /* Ns */
+	ARGSFL_DELIM, /* Nx */
+	ARGSFL_DELIM, /* Ox */
+	ARGSFL_DELIM, /* Pc */
+	ARGSFL_DELIM, /* Pf */
+	ARGSFL_NONE, /* Po */
+	ARGSFL_DELIM, /* Pq */
+	ARGSFL_DELIM, /* Qc */
+	ARGSFL_DELIM, /* Ql */
+	ARGSFL_NONE, /* Qo */
+	ARGSFL_DELIM, /* Qq */
+	ARGSFL_NONE, /* Re */
+	ARGSFL_NONE, /* Rs */
+	ARGSFL_DELIM, /* Sc */
+	ARGSFL_NONE, /* So */
+	ARGSFL_DELIM, /* Sq */
+	ARGSFL_NONE, /* Sm */
+	ARGSFL_DELIM, /* Sx */
+	ARGSFL_DELIM, /* Sy */
+	ARGSFL_DELIM, /* Tn */
+	ARGSFL_DELIM, /* Ux */
+	ARGSFL_DELIM, /* Xc */
+	ARGSFL_NONE, /* Xo */
+	ARGSFL_NONE, /* Fo */ 
+	ARGSFL_NONE, /* Fc */ 
+	ARGSFL_NONE, /* Oo */
+	ARGSFL_DELIM, /* Oc */
+	ARGSFL_NONE, /* Bk */
+	ARGSFL_NONE, /* Ek */
+	ARGSFL_NONE, /* Bt */
+	ARGSFL_NONE, /* Hf */
+	ARGSFL_NONE, /* Fr */
+	ARGSFL_NONE, /* Ud */
+	ARGSFL_NONE, /* Lb */
+	ARGSFL_NONE, /* Lp */
+	ARGSFL_DELIM, /* Lk */
+	ARGSFL_DELIM, /* Mt */
+	ARGSFL_DELIM, /* Brq */
+	ARGSFL_NONE, /* Bro */
+	ARGSFL_DELIM, /* Brc */
+	ARGSFL_NONE, /* %C */
+	ARGSFL_NONE, /* Es */
+	ARGSFL_NONE, /* En */
+	ARGSFL_NONE, /* Dx */
+	ARGSFL_NONE, /* %Q */
+	ARGSFL_NONE, /* br */
+	ARGSFL_NONE, /* sp */
+	ARGSFL_NONE, /* %U */
+	ARGSFL_NONE, /* Ta */
 };
 
+static	const enum mdocargt args_Ex[] = {
+	MDOC_Std,
+	MDOC_ARG_MAX
+};
 
+static	const enum mdocargt args_An[] = {
+	MDOC_Split,
+	MDOC_Nosplit,
+	MDOC_ARG_MAX
+};
+
+static	const enum mdocargt args_Bd[] = {
+	MDOC_Ragged,
+	MDOC_Unfilled,
+	MDOC_Filled,
+	MDOC_Literal,
+	MDOC_File,
+	MDOC_Offset,
+	MDOC_Compact,
+	MDOC_Centred,
+	MDOC_ARG_MAX
+};
+
+static	const enum mdocargt args_Bf[] = {
+	MDOC_Emphasis,
+	MDOC_Literal,
+	MDOC_Symbolic,
+	MDOC_ARG_MAX
+};
+
+static	const enum mdocargt args_Bk[] = {
+	MDOC_Words,
+	MDOC_ARG_MAX
+};
+
+static	const enum mdocargt args_Bl[] = {
+	MDOC_Bullet,
+	MDOC_Dash,
+	MDOC_Hyphen,
+	MDOC_Item,
+	MDOC_Enum,
+	MDOC_Tag,
+	MDOC_Diag,
+	MDOC_Hang,
+	MDOC_Ohang,
+	MDOC_Inset,
+	MDOC_Column,
+	MDOC_Width,
+	MDOC_Offset,
+	MDOC_Compact,
+	MDOC_Nested,
+	MDOC_ARG_MAX
+};
+
 /*
  * Parse an argument from line text.  This comes in the form of -key
  * [value0...], which may either have a single mandatory value, at least
@@ -225,7 +283,7 @@ mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
 	struct mdoc_argv tmp;
 	struct mdoc_arg	 *arg;
 
-	if (0 == buf[*pos])
+	if ('\0' == buf[*pos])
 		return(ARGV_EOLN);
 
 	assert(' ' != buf[*pos]);
@@ -246,13 +304,13 @@ mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
 
 	/* XXX - save zeroed byte, if not an argument. */
 
-	sv = 0;
+	sv = '\0';
 	if (buf[*pos]) {
 		sv = buf[*pos];
-		buf[(*pos)++] = 0;
+		buf[(*pos)++] = '\0';
 	}
 
-	(void)memset(&tmp, 0, sizeof(struct mdoc_argv));
+	memset(&tmp, 0, sizeof(struct mdoc_argv));
 	tmp.line = line;
 	tmp.pos = *pos;
 
@@ -278,13 +336,12 @@ mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
 	arg->argv = mandoc_realloc
 		(arg->argv, arg->argc * sizeof(struct mdoc_argv));
 
-	(void)memcpy(&arg->argv[(int)arg->argc - 1], 
+	memcpy(&arg->argv[(int)arg->argc - 1], 
 			&tmp, sizeof(struct mdoc_argv));
 
 	return(ARGV_ARG);
 }
 
-
 void
 mdoc_argv_free(struct mdoc_arg *p)
 {
@@ -301,19 +358,20 @@ mdoc_argv_free(struct mdoc_arg *p)
 	assert(p->argc);
 
 	for (i = (int)p->argc - 1; i >= 0; i--)
-		mdoc_argn_free(p, i);
+		argn_free(p, i);
 
 	free(p->argv);
 	free(p);
 }
 
-
-void
-mdoc_argn_free(struct mdoc_arg *p, int iarg)
+static void
+argn_free(struct mdoc_arg *p, int iarg)
 {
-	struct mdoc_argv *arg = &p->argv[iarg];
+	struct mdoc_argv *arg;
 	int		  j;
 
+	arg = &p->argv[iarg];
+
 	if (arg->sz && arg->value) {
 		for (j = (int)arg->sz - 1; j >= 0; j--) 
 			free(arg->value[j]);
@@ -324,78 +382,49 @@ mdoc_argn_free(struct mdoc_arg *p, int iarg)
 		p->argv[iarg] = p->argv[iarg+1];
 }
 
-
 enum margserr
-mdoc_zargs(struct mdoc *m, int line, int *pos, 
-		char *buf, int flags, char **v)
+mdoc_zargs(struct mdoc *m, int line, int *pos, char *buf, char **v)
 {
 
-	return(args(m, line, pos, buf, flags, v));
+	return(args(m, line, pos, buf, ARGSFL_NONE, v));
 }
 
-
 enum margserr
 mdoc_args(struct mdoc *m, int line, int *pos, 
 		char *buf, enum mdoct tok, char **v)
 {
-	int		  fl, c, i;
+	enum argsflag	  fl;
 	struct mdoc_node *n;
 
-	fl = mdoc_argflags[tok];
+	fl = argflags[tok];
 
 	if (MDOC_It != tok)
 		return(args(m, line, pos, buf, fl, v));
 
-	/* 
-	 * The `It' macro is a special case, as it acquires parameters from its
-	 * parent `Bl' context, specifically, we're concerned with -column.
+	/*
+	 * We know that we're in an `It', so it's reasonable to expect
+	 * us to be sitting in a `Bl'.  Someday this may not be the case
+	 * (if we allow random `It's sitting out there), so provide a
+	 * safe fall-back into the default behaviour.
 	 */
 
 	for (n = m->last; n; n = n->parent)
-		if (MDOC_BLOCK == n->type && MDOC_Bl == n->tok)
-			break;
+		if (MDOC_Bl == n->tok)
+			if (LIST_column == n->norm->Bl.type) {
+				fl = ARGSFL_TABSEP;
+				break;
+			}
 
-	assert(n);
-	c = (int)(n->args ? n->args->argc : 0);
-	assert(c > 0);
-
-	/* LINTED */
-	for (i = 0; i < c; i++) {
-		if (MDOC_Column != n->args->argv[i].arg) 
-			continue;
-		fl |= ARGS_TABSEP;
-		fl &= ~ARGS_DELIM;
-		break;
-	}
-
 	return(args(m, line, pos, buf, fl, v));
 }
 
-
 static enum margserr
 args(struct mdoc *m, int line, int *pos, 
-		char *buf, int fl, char **v)
+		char *buf, enum argsflag fl, char **v)
 {
-	int		  i;
-	char		 *p, *pp;
-	enum margserr	  rc;
+	char		*p, *pp;
+	enum margserr	 rc;
 
-	/*
-	 * Parse out the terms (like `val' in `.Xx -arg val' or simply
-	 * `.Xx val'), which can have all sorts of properties:
-	 *
-	 *   ARGS_DELIM: use special handling if encountering trailing
-	 *   delimiters in the form of [[::delim::][ ]+]+.
-	 *
-	 *   ARGS_NOWARN: don't post warnings.  This is only used when
-	 *   re-parsing delimiters, as the warnings have already been
-	 *   posted.
-	 *
-	 *   ARGS_TABSEP: use special handling for tab/`Ta' separated
-	 *   phrases like in `Bl -column'.
-	 */
-
-	assert(*pos);
 	assert(' ' != buf[*pos]);
 
 	if ('\0' == buf[*pos]) {
@@ -407,47 +436,18 @@ args(struct mdoc *m, int line, int *pos, 
 		 * is unterminated.
 		 */
 		if (MDOC_PHRASELIT & m->flags)
-			if ( ! mdoc_pwarn(m, line, *pos, EQUOTTERM))
-				return(ARGS_ERROR);
+			mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
 
 		m->flags &= ~MDOC_PHRASELIT;
 		return(ARGS_EOLN);
 	}
 
-	/* 
-	 * If the first character is a closing delimiter and we're to
-	 * look for delimited strings, then pass down the buffer seeing
-	 * if it follows the pattern of [[::delim::][ ]+]+.  Note that
-	 * we ONLY care about closing delimiters.
-	 */
+	*v = &buf[*pos];
 
-	if ((fl & ARGS_DELIM) && DELIM_CLOSE == mdoc_iscdelim(buf[*pos])) {
-		for (i = *pos; buf[i]; ) {
-			enum mdelim d = mdoc_iscdelim(buf[i]);
-			if (DELIM_NONE == d || DELIM_OPEN == d)
-				break;
-			i++;
-			if ('\0' == buf[i] || ' ' != buf[i])
-				break;
-			i++;
-			while (buf[i] && ' ' == buf[i])
-				i++;
-		}
-
-		if ('\0' == buf[i]) {
-			*v = &buf[*pos];
-			if (' ' != buf[i - 1])
-				return(ARGS_PUNCT);
-			if (ARGS_NOWARN & fl)
-				return(ARGS_PUNCT);
-			if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
-				return(ARGS_ERROR);
+	if (ARGSFL_DELIM == fl)
+		if (args_checkpunct(m, buf, *pos, line))
 			return(ARGS_PUNCT);
-		}
-	}
 
-	*v = &buf[*pos];
-
 	/*
 	 * First handle TABSEP items, restricted to `Bl -column'.  This
 	 * ignores conventional token parsing and instead uses tabs or
@@ -455,7 +455,7 @@ args(struct mdoc *m, int line, int *pos, 
 	 * for arguments at a later phase.
 	 */
 
-	if (ARGS_TABSEP & fl) {
+	if (ARGSFL_TABSEP == fl) {
 		/* Scan ahead to tab (can't be escaped). */
 		p = strchr(*v, '\t');
 		pp = NULL;
@@ -467,7 +467,7 @@ args(struct mdoc *m, int line, int *pos, 
 					break;
 				if (pp > *v && ' ' != *(pp - 1))
 					continue;
-				if (' ' == *(pp + 2) || 0 == *(pp + 2))
+				if (' ' == *(pp + 2) || '\0' == *(pp + 2))
 					break;
 			}
 
@@ -494,9 +494,8 @@ args(struct mdoc *m, int line, int *pos, 
 		}
 
 		/* Whitespace check for eoln case... */
-		if (0 == *p && ' ' == *(p - 1) && ! (ARGS_NOWARN & fl))
-			if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
-				return(ARGS_ERROR);
+		if ('\0' == *p && ' ' == *(p - 1))
+			mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
 
 		*pos += (int)(p - *v);
 
@@ -538,10 +537,9 @@ args(struct mdoc *m, int line, int *pos, 
 		}
 
 		if ('\0' == buf[*pos]) {
-			if (ARGS_NOWARN & fl || MDOC_PPHRASE & m->flags)
+			if (MDOC_PPHRASE & m->flags)
 				return(ARGS_QWORD);
-			if ( ! mdoc_pwarn(m, line, *pos, EQUOTTERM))
-				return(ARGS_ERROR);
+			mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
 			return(ARGS_QWORD);
 		}
 
@@ -554,138 +552,114 @@ args(struct mdoc *m, int line, int *pos, 
 		while (' ' == buf[*pos])
 			(*pos)++;
 
-		if (0 == buf[*pos] && ! (ARGS_NOWARN & fl))
-			if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
-				return(ARGS_ERROR);
+		if ('\0' == buf[*pos])
+			mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
 
 		return(ARGS_QWORD);
 	}
 
-	/* 
-	 * A non-quoted term progresses until either the end of line or
-	 * a non-escaped whitespace.
-	 */
+	p = &buf[*pos];
+	*v = mandoc_getarg(m->parse, &p, line, pos);
 
-	for ( ; buf[*pos]; (*pos)++)
-		if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
-			break;
+	return(ARGS_WORD);
+}
 
-	if ('\0' == buf[*pos])
-		return(ARGS_WORD);
+/* 
+ * Check if the string consists only of space-separated closing
+ * delimiters.  This is a bit of a dance: the first must be a close
+ * delimiter, but it may be followed by middle delimiters.  Arbitrary
+ * whitespace may separate these tokens.
+ */
+static int
+args_checkpunct(struct mdoc *m, const char *buf, int i, int ln)
+{
+	int		 j;
+	char		 dbuf[DELIMSZ];
+	enum mdelim	 d;
 
-	buf[(*pos)++] = '\0';
+	/* First token must be a close-delimiter. */
 
-	while (' ' == buf[*pos])
-		(*pos)++;
+	for (j = 0; buf[i] && ' ' != buf[i] && j < DELIMSZ; j++, i++)
+		dbuf[j] = buf[i];
 
-	if ('\0' == buf[*pos] && ! (ARGS_NOWARN & fl))
-		if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
-			return(ARGS_ERROR);
+	if (DELIMSZ == j)
+		return(0);
 
-	return(ARGS_WORD);
-}
+	dbuf[j] = '\0';
+	if (DELIM_CLOSE != mdoc_isdelim(dbuf))
+		return(0);
 
+	while (' ' == buf[i])
+		i++;
 
-static int
+	/* Remaining must NOT be open/none. */
+	
+	while (buf[i]) {
+		j = 0;
+		while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
+			dbuf[j++] = buf[i++];
+
+		if (DELIMSZ == j)
+			return(0);
+
+		dbuf[j] = '\0';
+		d = mdoc_isdelim(dbuf);
+		if (DELIM_NONE == d || DELIM_OPEN == d)
+			return(0);
+
+		while (' ' == buf[i])
+			i++;
+	}
+
+	return('\0' == buf[i]);
+}
+
+/*
+ * Match up an argument string (e.g., `-foo bar' having "foo") with the
+ * correrct identifier.  It must apply to the given macro.  If none was
+ * found (including bad matches), return MDOC_ARG_MAX.
+ */
+static enum mdocargt
 argv_a2arg(enum mdoct tok, const char *p)
 {
+	const enum mdocargt *argsp;
 
-	/*
-	 * Parse an argument identifier from its text.  XXX - this
-	 * should really be table-driven to clarify the code.
-	 *
-	 * If you add an argument to the list, make sure that you
-	 * register it here with its one or more macros!
-	 */
+	argsp = NULL;
 
 	switch (tok) {
 	case (MDOC_An):
-		if (0 == strcmp(p, "split"))
-			return(MDOC_Split);
-		else if (0 == strcmp(p, "nosplit"))
-			return(MDOC_Nosplit);
+		argsp = args_An;
 		break;
-
 	case (MDOC_Bd):
-		if (0 == strcmp(p, "ragged"))
-			return(MDOC_Ragged);
-		else if (0 == strcmp(p, "unfilled"))
-			return(MDOC_Unfilled);
-		else if (0 == strcmp(p, "filled"))
-			return(MDOC_Filled);
-		else if (0 == strcmp(p, "literal"))
-			return(MDOC_Literal);
-		else if (0 == strcmp(p, "file"))
-			return(MDOC_File);
-		else if (0 == strcmp(p, "offset"))
-			return(MDOC_Offset);
-		else if (0 == strcmp(p, "compact"))
-			return(MDOC_Compact);
-		else if (0 == strcmp(p, "centered"))
-			return(MDOC_Centred);
+		argsp = args_Bd;
 		break;
-
 	case (MDOC_Bf):
-		if (0 == strcmp(p, "emphasis"))
-			return(MDOC_Emphasis);
-		else if (0 == strcmp(p, "literal"))
-			return(MDOC_Literal);
-		else if (0 == strcmp(p, "symbolic"))
-			return(MDOC_Symbolic);
+		argsp = args_Bf;
 		break;
-
 	case (MDOC_Bk):
-		if (0 == strcmp(p, "words"))
-			return(MDOC_Words);
+		argsp = args_Bk;
 		break;
-
 	case (MDOC_Bl):
-		if (0 == strcmp(p, "bullet"))
-			return(MDOC_Bullet);
-		else if (0 == strcmp(p, "dash"))
-			return(MDOC_Dash);
-		else if (0 == strcmp(p, "hyphen"))
-			return(MDOC_Hyphen);
-		else if (0 == strcmp(p, "item"))
-			return(MDOC_Item);
-		else if (0 == strcmp(p, "enum"))
-			return(MDOC_Enum);
-		else if (0 == strcmp(p, "tag"))
-			return(MDOC_Tag);
-		else if (0 == strcmp(p, "diag"))
-			return(MDOC_Diag);
-		else if (0 == strcmp(p, "hang"))
-			return(MDOC_Hang);
-		else if (0 == strcmp(p, "ohang"))
-			return(MDOC_Ohang);
-		else if (0 == strcmp(p, "inset"))
-			return(MDOC_Inset);
-		else if (0 == strcmp(p, "column"))
-			return(MDOC_Column);
-		else if (0 == strcmp(p, "width"))
-			return(MDOC_Width);
-		else if (0 == strcmp(p, "offset"))
-			return(MDOC_Offset);
-		else if (0 == strcmp(p, "compact"))
-			return(MDOC_Compact);
-		else if (0 == strcmp(p, "nested"))
-			return(MDOC_Nested);
+		argsp = args_Bl;
 		break;
-	
 	case (MDOC_Rv):
 		/* FALLTHROUGH */
 	case (MDOC_Ex):
-		if (0 == strcmp(p, "std"))
-			return(MDOC_Std);
+		argsp = args_Ex;
 		break;
 	default:
-		break;
+		return(MDOC_ARG_MAX);
 	}
 
+	assert(argsp);
+
+	for ( ; MDOC_ARG_MAX != *argsp ; argsp++)
+		if (0 == strcmp(p, mdoc_argnames[*argsp]))
+			return(*argsp);
+
 	return(MDOC_ARG_MAX);
 }
 
-
 static int
 argv_multi(struct mdoc *m, int line, 
 		struct mdoc_argv *v, int *pos, char *buf)
@@ -712,7 +686,6 @@ argv_multi(struct mdoc *m, int line, 
 	return(1);
 }
 
-
 static int
 argv_opt_single(struct mdoc *m, int line, 
 		struct mdoc_argv *v, int *pos, char *buf)
@@ -736,7 +709,6 @@ argv_opt_single(struct mdoc *m, int line, 
 	return(1);
 }
 
-
 /*
  * Parse a single, mandatory value from the stream.
  */
@@ -751,10 +723,11 @@ argv_single(struct mdoc *m, int line, 
 	ppos = *pos;
 
 	ac = args(m, line, pos, buf, 0, &p);
-	if (ARGS_ERROR == ac)
+	if (ARGS_EOLN == ac) {
+		mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTARGVCOUNT);
 		return(0);
-	if (ARGS_EOLN == ac)
-		return(mdoc_perr(m, line, ppos, EARGVAL));
+	} else if (ARGS_ERROR == ac)
+		return(0);
 
 	v->sz = 1;
 	v->value = mandoc_malloc(sizeof(char *));
@@ -763,7 +736,6 @@ argv_single(struct mdoc *m, int line, 
 	return(1);
 }
 
-
 /*
  * Determine rules for parsing arguments.  Arguments can either accept
  * no parameters, an optional single parameter, one parameter, or
@@ -777,16 +749,18 @@ argv(struct mdoc *mdoc, int line, 
 	v->sz = 0;
 	v->value = NULL;
 
-	switch (mdoc_argvflags[v->arg]) {
+	switch (argvflags[v->arg]) {
 	case (ARGV_SINGLE):
 		return(argv_single(mdoc, line, v, pos, buf));
 	case (ARGV_MULTI):
 		return(argv_multi(mdoc, line, v, pos, buf));
 	case (ARGV_OPT_SINGLE):
 		return(argv_opt_single(mdoc, line, v, pos, buf));
-	default:
-		/* ARGV_NONE */
+	case (ARGV_NONE):
 		break;
+	default:
+		abort();
+		/* NOTREACHED */
 	}
 
 	return(1);