===================================================================
RCS file: /cvs/mandoc/mandoc.c,v
retrieving revision 1.2
retrieving revision 1.12
diff -u -p -r1.2 -r1.12
--- mandoc/mandoc.c	2009/07/12 09:48:00	1.2
+++ mandoc/mandoc.c	2010/05/12 17:08:03	1.12
@@ -1,4 +1,4 @@
-/*	$Id: mandoc.c,v 1.2 2009/07/12 09:48:00 kristaps Exp $ */
+/*	$Id: mandoc.c,v 1.12 2010/05/12 17:08:03 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -14,25 +14,35 @@
  * 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 <ctype.h>
 #include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
 
 #include "libmandoc.h"
 
+static int	 a2time(time_t *, const char *, const char *);
+
+
 int
 mandoc_special(const char *p)
 {
-	int		 c;
+	int		 terminator;	/* Terminator for \s. */
+	int		 lim;		/* Limit for N in \s. */
+	int		 c, i;
 	
 	if ('\\' != *p++)
 		return(0);
 
 	switch (*p) {
-	case ('\\'):
-		/* FALLTHROUGH */
 	case ('\''):
 		/* FALLTHROUGH */
 	case ('`'):
@@ -59,12 +69,89 @@ mandoc_special(const char *p)
 		/* FALLTHROUGH */
 	case (':'):
 		/* FALLTHROUGH */
+	case ('c'):
+		return(2);
 	case ('e'):
 		return(2);
-	case ('f'):
-		if (0 == *++p || ! isgraph((u_char)*p))
+	case ('s'):
+		if ('\0' == *++p)
+			return(2);
+
+		c = 2;
+		terminator = 0;
+		lim = 1;
+
+		if (*p == '\'') {
+			lim = 0;
+			terminator = 1;
+			++p;
+			++c;
+		} else if (*p == '[') {
+			lim = 0;
+			terminator = 2;
+			++p;
+			++c;
+		} else if (*p == '(') {
+			lim = 2;
+			terminator = 3;
+			++p;
+			++c;
+		}
+
+		if (*p == '+' || *p == '-') {
+			++p;
+			++c;
+		}
+
+		if (*p == '\'') {
+			if (terminator)
+				return(0);
+			lim = 0;
+			terminator = 1;
+			++p;
+			++c;
+		} else if (*p == '[') {
+			if (terminator)
+				return(0);
+			lim = 0;
+			terminator = 2;
+			++p;
+			++c;
+		} else if (*p == '(') {
+			if (terminator)
+				return(0);
+			lim = 2;
+			terminator = 3;
+			++p;
+			++c;
+		}
+
+		/* TODO: needs to handle floating point. */
+
+		if ( ! isdigit((u_char)*p))
 			return(0);
-		return(3);
+
+		for (i = 0; isdigit((u_char)*p); i++) {
+			if (lim && i >= lim)
+				break;
+			++p;
+			++c;
+		}
+
+		if (terminator && terminator < 3) {
+			if (1 == terminator && *p != '\'')
+				return(0);
+			if (2 == terminator && *p != ']')
+				return(0);
+			++p;
+			++c;
+		}
+
+		return(c);
+	case ('f'):
+		/* FALLTHROUGH */
+	case ('F'):
+		/* FALLTHROUGH */
 	case ('*'):
 		if (0 == *++p || ! isgraph((u_char)*p))
 			return(0);
@@ -101,3 +188,138 @@ mandoc_special(const char *p)
 	return(*p == ']' ? c : 0);
 }
 
+
+void *
+mandoc_calloc(size_t num, size_t size)
+{
+	void		*ptr;
+
+	ptr = calloc(num, size);
+	if (NULL == ptr) {
+		perror(NULL);
+		exit(EXIT_FAILURE);
+	}
+
+	return(ptr);
+}
+
+
+void *
+mandoc_malloc(size_t size)
+{
+	void		*ptr;
+
+	ptr = malloc(size);
+	if (NULL == ptr) {
+		perror(NULL);
+		exit(EXIT_FAILURE);
+	}
+
+	return(ptr);
+}
+
+
+void *
+mandoc_realloc(void *ptr, size_t size)
+{
+
+	ptr = realloc(ptr, size);
+	if (NULL == ptr) {
+		perror(NULL);
+		exit(EXIT_FAILURE);
+	}
+
+	return(ptr);
+}
+
+
+char *
+mandoc_strdup(const char *ptr)
+{
+	char		*p;
+
+	p = strdup(ptr);
+	if (NULL == p) {
+		perror(NULL);
+		exit(EXIT_FAILURE);
+	}
+
+	return(p);
+}
+
+
+static int
+a2time(time_t *t, const char *fmt, const char *p)
+{
+	struct tm	 tm;
+	char		*pp;
+
+	memset(&tm, 0, sizeof(struct tm));
+
+	pp = strptime(p, fmt, &tm);
+	if (NULL != pp && '\0' == *pp) {
+		*t = mktime(&tm);
+		return(1);
+	}
+
+	return(0);
+}
+
+
+/*
+ * Convert from a manual date string (see mdoc(7) and man(7)) into a
+ * date according to the stipulated date type.
+ */
+time_t
+mandoc_a2time(int flags, const char *p)
+{
+	time_t		 t;
+
+	if (MTIME_MDOCDATE & flags) {
+		if (0 == strcmp(p, "$" "Mdocdate$"))
+			return(time(NULL));
+		if (a2time(&t, "$" "Mdocdate: %b %d %Y $", p))
+			return(t);
+	}
+
+	if (MTIME_CANONICAL & flags || MTIME_REDUCED & flags) 
+		if (a2time(&t, "%b %d, %Y", p))
+			return(t);
+
+	if (MTIME_ISO_8601 & flags) 
+		if (a2time(&t, "%Y-%m-%d", p))
+			return(t);
+
+	if (MTIME_REDUCED & flags) {
+		if (a2time(&t, "%d, %Y", p))
+			return(t);
+		if (a2time(&t, "%Y", p))
+			return(t);
+	}
+
+	return(0);
+}
+
+
+int
+mandoc_eos(const char *p, size_t sz)
+{
+
+	assert(sz);
+
+	switch (p[(int)sz - 1]) {
+	case ('.'):
+		/* Escaped periods. */
+		if (sz > 1 && '\\' == p[(int)sz - 2])
+			return(0);
+		/* FALLTHROUGH */
+	case ('!'):
+		/* FALLTHROUGH */
+	case ('?'):
+		break;
+	default:
+		return(0);
+	}
+
+	return(1);
+}