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1 files changed, 198 insertions, 0 deletions

diff --git a/src/utilfuns/utilstr.cpp b/src/utilfuns/utilstr.cpp
new file mode 100644
index 0000000..7363240
--- /dev/null
+++ b/src/utilfuns/utilstr.cpp
@@ -0,0 +1,198 @@
+#include <string.h>
+#include <utilstr.h>
+#include <ctype.h>
+
+#ifdef _ICU_
+#include <unicode/utypes.h>
+#include <unicode/ucnv.h>
+#include <unicode/ustring.h>
+#include <unicode/uchar.h>
+
+#include <unicode/unistr.h>
+#include <unicode/translit.h>
+
+#endif
+
+/******************************************************************************
+ * stdstr - Sets/gets a string
+ *
+ * ENT:	ipstr	- pointer to a string pointer to set if necessary
+ *	istr	- string to set to *ipstr
+ *			0 - only get
+ *
+ * RET:	*ipstr
+ */
+
+char *stdstr(char **ipstr, const char *istr) {
+	if (istr) {
+		if (*ipstr)
+			delete [] *ipstr;
+		int len = strlen(istr) + 1;
+		*ipstr = new char [ len*2 ];	// *2 buffer for unicode manipulations
+		memcpy(*ipstr, istr, len);
+	}
+	return *ipstr;
+}
+
+
+/******************************************************************************
+ * strstrip - Removes leading and trailing spaces from a string
+ *
+ * ENT:	istr	- string pointer to strip
+ *
+ * RET:	*istr
+ */
+
+char *strstrip(char *istr) {
+	char *tmp = istr;
+	char *rtmp;
+
+	int len = strlen(istr);
+	if (len < 1)
+		return istr;
+	rtmp = istr + (len - 1);
+	
+	while ((rtmp > istr)&&((*rtmp == ' ')||(*rtmp == '\t')||(*rtmp == 10)||(*rtmp == 13))) *(rtmp--) = 0;
+	while ((*tmp == ' ')||(*tmp == '\t')||(*tmp == 10)||(*tmp == 13)) tmp++;
+	memmove(istr, tmp, (rtmp - tmp) + 1);
+	istr[(rtmp - tmp) + 1] = 0;
+
+	return istr;
+}
+
+
+/******************************************************************************
+ * stristr - Scans a string for the occurrence of a given substring, no case
+ *
+ * ENT:	scans s1 for the first occurrence of the substring s2, ingnoring case
+ *
+ * RET:	a pointer to the element in s1, where s2 begins (points to s2 in s1).
+ *			If s2 does not occur in s1, returns null.
+ */
+
+const char *stristr(const char *s1, const char *s2) {
+	int tLen = strlen(s2);
+	int cLen = strlen(s1);
+	char *target = new char [ tLen + 1 ];
+	int i, j;
+	const char *retVal = 0;
+
+	strcpy(target, s2);
+	for (i = 0; i < tLen; i++)
+		target[i] = SW_toupper(target[i]);
+
+	for (i = 0; i < (cLen - tLen)+1; i++) {
+		if (SW_toupper(s1[i]) == (unsigned char)*target) {
+			for (j = 1; j < tLen; j++) {
+				if (SW_toupper(s1[i+j]) != (unsigned char)target[j])
+					break;
+			}
+			if (j == tLen) {
+				retVal = s1+i;
+				break;
+			}
+		}
+	}
+	delete [] target;
+	return retVal;
+}
+
+/******************************************************************************
+ * strnicmp - compares the first n bytes of 2 string ignoring case
+ *
+ * ENT:	compares s1 to s2 comparing the first n byte ingnoring case
+ *
+ * RET:	same as strcmp
+ */
+
+const char strnicmp(const char *s1, const char *s2, int len) {
+	int tLen = strlen(s2);
+	int cLen = strlen(s1);
+	char diff;
+	int i;
+	for (i = 0; ((i < len) && (i < tLen) && (i < cLen)); i++) {
+		if ((diff = SW_toupper(*s1) - SW_toupper(*s2)))
+			return diff;
+	s1++;
+	s2++;
+	}
+	return (i < len) ? cLen - tLen : 0;
+}
+
+/******************************************************************************
+ * strlenw - Scans a string for trailing 0x0000 and return size in BYTES
+ *
+ * ENT:	target - string for which to determine size
+ *
+ * RET:	length in BYTES 
+ *			If s2 does not occur in s1, returns null.
+ */
+
+unsigned int strlenw(const char *s1) {
+	return strlen(s1);
+// utf8 says no null in string except terminator, so below code is overkill
+/*
+	const char *ch = s1;
+	if (!*ch)
+		ch++;
+	while (*ch) {
+		ch++;
+		if (!*ch)
+			ch++;
+	}
+	return (unsigned int)(ch - s1) - 1;
+*/
+}
+
+
+/******************************************************************************
+ * toupperstr - converts a string to uppercase string
+ *
+ * ENT:	target - string to convert
+ *
+ * RET:	target
+ */
+
+char *toupperstr(char *buf) {
+	char *ret = buf;
+
+	while (*buf)
+		*buf = SW_toupper(*buf++);
+
+	return ret;
+}
+
+
+/******************************************************************************
+ * toupperstr - converts a string to uppercase string
+ *
+ * ENT:	target - string to convert
+ *
+ * RET:	target
+ */
+
+char *toupperstr_utf8(char *buf) {
+	char *ret = buf;
+
+#ifndef _ICU_
+	// try to decide if it's worth trying to toupper.  Do we have more
+	// characters that are probably lower latin than not?
+	long performOp = 0;
+	for (const char *ch = buf; *ch; ch++)
+		performOp += (*ch > 0) ? 1 : -1;
+
+	if (performOp) {
+		while (*buf)
+			*buf = SW_toupper(*buf++);
+	}
+#else
+		UErrorCode err = U_ZERO_ERROR;
+		UConverter *conv = ucnv_open("UTF-8", &err);
+		UnicodeString str(buf, -1, conv, err);
+		UnicodeString ustr = str.toUpper();
+		ustr.extract(ret, strlen(ret)*2, conv, err);
+		ucnv_close(conv);
+#endif
+
+	return ret;
+}