--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nasmbuild/nasm-2.13rc9/nasmlib/string.c	Thu Mar 30 20:58:41 2017 +0000
@@ -0,0 +1,242 @@
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 1996-2016 The NASM Authors - All Rights Reserved
+ *   See the file AUTHORS included with the NASM distribution for
+ *   the specific copyright holders.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following
+ *   conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following
+ *     disclaimer in the documentation and/or other materials provided
+ *     with the distribution.
+ *     
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * nasmlib.c	library routines for the Netwide Assembler
+ */
+
+#include "compiler.h"
+
+#include <stdlib.h>
+#include <ctype.h>
+
+#include "nasmlib.h"
+
+/*
+ * Prepare a table of tolower() results.  This avoids function calls
+ * on some platforms.
+ */
+
+unsigned char nasm_tolower_tab[256];
+
+void tolower_init(void)
+{
+    int i;
+
+    for (i = 0; i < 256; i++)
+	nasm_tolower_tab[i] = tolower(i);
+}
+
+#ifndef nasm_stricmp
+int nasm_stricmp(const char *s1, const char *s2)
+{
+    unsigned char c1, c2;
+    int d;
+
+    while (1) {
+	c1 = nasm_tolower(*s1++);
+	c2 = nasm_tolower(*s2++);
+	d = c1-c2;
+
+	if (d)
+	    return d;
+	if (!c1)
+	    break;
+    }
+    return 0;
+}
+#endif
+
+#ifndef nasm_strnicmp
+int nasm_strnicmp(const char *s1, const char *s2, size_t n)
+{
+    unsigned char c1, c2;
+    int d;
+
+    while (n--) {
+	c1 = nasm_tolower(*s1++);
+	c2 = nasm_tolower(*s2++);
+	d = c1-c2;
+
+	if (d)
+	    return d;
+	if (!c1)
+	    break;
+    }
+    return 0;
+}
+#endif
+
+int nasm_memicmp(const char *s1, const char *s2, size_t n)
+{
+    unsigned char c1, c2;
+    int d;
+
+    while (n--) {
+	c1 = nasm_tolower(*s1++);
+	c2 = nasm_tolower(*s2++);
+	d = c1-c2;
+	if (d)
+	    return d;
+    }
+    return 0;
+}
+
+#ifndef nasm_strsep
+char *nasm_strsep(char **stringp, const char *delim)
+{
+        char *s = *stringp;
+        char *e;
+
+        if (!s)
+                return NULL;
+
+        e = strpbrk(s, delim);
+        if (e)
+                *e++ = '\0';
+
+        *stringp = e;
+        return s;
+}
+#endif
+
+/* skip leading spaces */
+char *nasm_skip_spaces(const char *p)
+{
+    if (p)
+        while (*p && nasm_isspace(*p))
+            p++;
+    return (char *)p;
+}
+
+/* skip leading non-spaces */
+char *nasm_skip_word(const char *p)
+{
+    if (p)
+        while (*p && !nasm_isspace(*p))
+            p++;
+    return (char *)p;
+}
+
+/* zap leading spaces with zero */
+char *nasm_zap_spaces_fwd(char *p)
+{
+    if (p)
+        while (*p && nasm_isspace(*p))
+            *p++ = 0x0;
+    return p;
+}
+
+/* zap spaces with zero in reverse order */
+char *nasm_zap_spaces_rev(char *p)
+{
+    if (p)
+        while (*p && nasm_isspace(*p))
+            *p-- = 0x0;
+    return p;
+}
+
+/* zap leading and trailing spaces */
+char *nasm_trim_spaces(char *p)
+{
+    p = nasm_zap_spaces_fwd(p);
+    nasm_zap_spaces_fwd(nasm_skip_word(p));
+
+    return p;
+}
+
+/*
+ * return the word extracted from a stream
+ * or NULL if nothing left
+ */
+char *nasm_get_word(char *p, char **tail)
+{
+    char *word = nasm_skip_spaces(p);
+    char *next = nasm_skip_word(word);
+
+    if (word && *word) {
+        if (*next)
+            *next++ = '\0';
+    } else
+        word = next = NULL;
+
+    /* NOTE: the tail may start with spaces */
+    *tail = next;
+
+    return word;
+}
+
+/*
+ * Extract "opt=val" values from the stream and
+ * returns "opt"
+ *
+ * Exceptions:
+ * 1) If "=val" passed the NULL returned though
+ *    you may continue handling the tail via "next"
+ * 2) If "=" passed the NULL is returned and "val"
+ *    is set to NULL as well
+ */
+char *nasm_opt_val(char *p, char **val, char **next)
+{
+    char *q, *nxt;
+
+    *val = *next = NULL;
+
+    p = nasm_get_word(p, &nxt);
+    if (!p)
+        return NULL;
+
+    q = strchr(p, '=');
+    if (q) {
+        if (q == p)
+            p = NULL;
+        *q++='\0';
+        if (*q) {
+            *val = q;
+        } else {
+            q = nasm_get_word(q + 1, &nxt);
+            if (q)
+                *val = q;
+        }
+    } else {
+        q = nasm_skip_spaces(nxt);
+        if (q && *q == '=') {
+            q = nasm_get_word(q + 1, &nxt);
+            if (q)
+                *val = q;
+        }
+    }
+
+    *next = nxt;
+    return p;
+}