*** empty log message ***

1 files changed, 154 insertions, 36 deletions

diff --git a/argv.c b/argv.c
index dde4ee8e..bb6480d8 100644
--- a/argv.c
+++ b/argv.c
@@ -1,4 +1,4 @@
-/* $Id: argv.c,v 1.1 2008/12/23 05:30:49 kristaps Exp $ */
+/* $Id: argv.c,v 1.2 2008/12/28 00:34:20 kristaps Exp $ */
 /*
  * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -26,17 +26,49 @@
 #include "private.h"
 
 
-static	int		 parse_next(struct mdoc *, int, 
-				int *, char *, char **);
+static	int		 lookup(int, const char *);
+static	int		 parse(struct mdoc *, int, 
+				struct mdoc_arg *, int *, char *);
+static	int		 postparse(struct mdoc *, int, 
+				const struct mdoc_arg *, int);
 
 
-static int
-parse_next(struct mdoc *mdoc, int tok, 
-		int *pos, char *buf, char **v)
+int
+mdoc_args(struct mdoc *mdoc, int tok, int *pos, char *buf, int fl, char **v)
 {
+	int		 i;
 
 	if (0 == buf[*pos])
-		return(0);
+		return(ARGS_EOLN);
+
+	if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED))
+		if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_QUOTED))
+			return(ARGS_ERROR);
+
+	if ('-' == buf[*pos]) 
+		if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_ARGLIKE))
+			return(ARGS_ERROR);
+
+	if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) {
+		for (i = *pos; buf[i]; ) {
+			if ( ! mdoc_iscdelim(buf[i]))
+				break;
+			i++;
+			if (0 == buf[i] || ! isspace(buf[i]))
+				break;
+			i++;
+			while (buf[i] && isspace(buf[i]))
+				i++;
+		}
+		if (0 == buf[i]) {
+			*v = &buf[*pos];
+			return(ARGS_PUNCT);
+		}
+	}
+
+	/*
+	 * Parse routine for non-quoted string.  
+	 */
 
 	if ('\"' != buf[*pos]) {
 		*v = &buf[*pos];
@@ -45,26 +77,31 @@ parse_next(struct mdoc *mdoc, int tok,
 			(*pos)++;
 
 		if (0 == buf[*pos])
-			return(1);
+			return(ARGS_WORD);
 
 		buf[(*pos)++] = 0;
 		if (0 == buf[*pos])
-			return(1);
+			return(ARGS_WORD);
 
 		while (buf[*pos] && isspace(buf[*pos]))
 			(*pos)++;
 
 		if (buf[*pos])
-			return(1);
+			return(ARGS_WORD);
 
 		if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN))
-			return(-1);
-		return(1);
-	} 
+			return(ARGS_ERROR);
 
-	if ('-' == buf[*pos]) 
-		if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_ARGLIKE))
-			return(-1);
+		return(ARGS_WORD);
+	}
+
+	/*
+	 * If we're a quoted string (and quoted strings are allowed),
+	 * then parse ahead to the next quote.  If none's found, it's an
+	 * error.  After, parse to the next word.  We're not allowed to
+	 * also be DELIM requests (for now).
+	 */
+	assert( ! (fl & ARGS_DELIM));
 
 	*v = &buf[++(*pos)];
 
@@ -73,31 +110,32 @@ parse_next(struct mdoc *mdoc, int tok,
 
 	if (0 == buf[*pos]) {
 		(void)mdoc_err(mdoc, tok, *pos, ERR_SYNTAX_UNQUOTE);
-		return(-1);
+		return(ARGS_ERROR);
 	}
 
 	buf[(*pos)++] = 0;
 	if (0 == buf[*pos])
-		return(1);
+		return(ARGS_WORD);
 
 	while (buf[*pos] && isspace(buf[*pos]))
 		(*pos)++;
 
 	if (buf[*pos])
-		return(1);
+		return(ARGS_WORD);
 
 	if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN))
-		return(-1);
-	return(1);
+		return(ARGS_ERROR);
+
+	return(ARGS_WORD);
 }
 
 
-int
-mdoc_argv_lookup(int tok, const char *argv)
+static int
+lookup(int tok, const char *argv)
 {
 
 	switch (tok) {
-	case (MDOC_Bl):
+	case (MDOC_Bd):
 		if (xstrcmp(argv, "ragged"))
 			return(MDOC_Ragged);
 		else if (xstrcmp(argv, "unfilled"))
@@ -108,7 +146,10 @@ mdoc_argv_lookup(int tok, const char *argv)
 			return(MDOC_File);
 		else if (xstrcmp(argv, "offset"))
 			return(MDOC_Offset);
-		else if (xstrcmp(argv, "bullet"))
+		break;
+
+	case (MDOC_Bl):
+		if (xstrcmp(argv, "bullet"))
 			return(MDOC_Bullet);
 		else if (xstrcmp(argv, "dash"))
 			return(MDOC_Dash);
@@ -132,10 +173,12 @@ mdoc_argv_lookup(int tok, const char *argv)
 			return(MDOC_Column);
 		else if (xstrcmp(argv, "width"))
 			return(MDOC_Width);
+		else if (xstrcmp(argv, "offset"))
+			return(MDOC_Offset);
 		else if (xstrcmp(argv, "compact"))
 			return(MDOC_Compact);
-
 		break;
+
 	default:
 		abort();
 		/* NOTREACHED */
@@ -145,17 +188,43 @@ mdoc_argv_lookup(int tok, const char *argv)
 }
 
 
-int
-mdoc_argv_parse(struct mdoc *mdoc, int tok, int arg, 
+static int
+postparse(struct mdoc *mdoc, int tok, const struct mdoc_arg *v, int pos)
+{
+
+	switch (v->arg) {
+	case (MDOC_Offset):
+		assert(v->value);
+		assert(v->value[0]);
+		if (xstrcmp(v->value[0], "left"))
+			break;
+		if (xstrcmp(v->value[0], "right"))
+			break;
+		if (xstrcmp(v->value[0], "center"))
+			break;
+		if (xstrcmp(v->value[0], "indent"))
+			break;
+		if (xstrcmp(v->value[0], "indent-two"))
+			break;
+		return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_ARGBAD));
+	default:
+		break;
+	}
+
+	return(1);
+}
+
+
+static int
+parse(struct mdoc *mdoc, int tok, 
 		struct mdoc_arg *v, int *pos, char *buf)
 {
 	char		*p;
 	int		 c, ppos, i;
 
-	v->arg = arg;
 	ppos = *pos;
 
-	switch (arg) {
+	switch (v->arg) {
 	case(MDOC_Compact):
 		/* FALLTHROUGH */
 	case(MDOC_Ragged):
@@ -195,10 +264,10 @@ mdoc_argv_parse(struct mdoc *mdoc, int tok, int arg,
 		/*
 		 * This has a single value for an argument.
 		 */
-		c = parse_next(mdoc, tok, pos, buf, &p);
-		if (-1 == c)
+		c = mdoc_args(mdoc, tok, pos, buf, ARGS_QUOTED, &p);
+		if (ARGS_ERROR == c)
 			return(0);
-		else if (0 == c)
+		else if (ARGS_EOLN == c)
 			return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGVAL));
 			
 		v->sz = 1;
@@ -215,11 +284,11 @@ mdoc_argv_parse(struct mdoc *mdoc, int tok, int arg,
 		v->sz = 0;
 		v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *));
 		for (i = 0; i < MDOC_LINEARG_MAX; i++) {
-			c = parse_next(mdoc, tok, pos, buf, &p);
-			if (-1 == c) {
+			c = mdoc_args(mdoc, tok, pos, buf, ARGS_QUOTED, &p);
+			if (ARGS_ERROR == c) {
 				free(v->value);
 				return(0);
-			} else if (0 == c)
+			} else if (ARGS_EOLN == c)
 				break;
 			v->value[i] = p;
 		}
@@ -240,6 +309,54 @@ mdoc_argv_parse(struct mdoc *mdoc, int tok, int arg,
 }
 
 
+int
+mdoc_argv(struct mdoc *mdoc, int tok, 
+		struct mdoc_arg *v, int *pos, char *buf)
+{
+	int		 i, ppos;
+	char		*argv;
+
+	(void)memset(v, 0, sizeof(struct mdoc_arg));
+
+	if (0 == buf[*pos])
+		return(0);
+
+	assert( ! isspace(buf[*pos]));
+
+	if ('-' != buf[*pos]) {
+		(void)mdoc_err(mdoc, tok, *pos, ERR_SYNTAX_ARGFORM);
+		return(-1);
+	}
+
+	i = *pos;
+	argv = &buf[++(*pos)];
+
+	while (buf[*pos] && ! isspace(buf[*pos]))
+		(*pos)++;
+
+	if (buf[*pos])
+		buf[(*pos)++] = 0;
+
+	if (MDOC_ARG_MAX == (v->arg = lookup(tok, argv))) {
+		(void)mdoc_err(mdoc, tok, i, ERR_SYNTAX_ARG);
+		return(-1);
+	}
+
+	while (buf[*pos] && isspace(buf[*pos]))
+		(*pos)++;
+
+	/* FIXME: whitespace if no value. */
+
+	ppos = *pos;
+	if ( ! parse(mdoc, tok, v, pos, buf))
+		return(-1);
+	if ( ! postparse(mdoc, tok, v, ppos))
+		return(-1);
+
+	return(1);
+}
+
+
 void
 mdoc_argv_free(int sz, struct mdoc_arg *arg)
 {
@@ -254,3 +371,4 @@ mdoc_argv_free(int sz, struct mdoc_arg *arg)
 		free(arg[i].value);
 	}
 }
+