From 533d77dd32bdd29a9ba18130e6161b8a253450c4 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Wilfried=20G=C3=B6esgens?= <willi@citadel.org>
Date: Tue, 14 Oct 2008 22:15:45 +0000
Subject: [PATCH] * StrBufTrim; port of striplt to strbuf; since the rest of
 the world calls this Trim(), lets do so too.

---
 libcitadel/lib/libcitadel.h |  1 +
 libcitadel/lib/stringbuf.c  | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/libcitadel/lib/libcitadel.h b/libcitadel/lib/libcitadel.h
index 942dcbea7..c89a511d4 100644
--- a/libcitadel/lib/libcitadel.h
+++ b/libcitadel/lib/libcitadel.h
@@ -254,6 +254,7 @@ void StrBufVAppendPrintf(StrBuf *Buf, const char *format, va_list ap);
 void StrBufPrintf(StrBuf *Buf, const char *format, ...) __attribute__((__format__(__printf__,2,3)));
 void StrBufCutLeft(StrBuf *Buf, int nChars);
 void StrBufCutRight(StrBuf *Buf, int nChars);
+void StrBufTrim(StrBuf *Buf);
 void StrBufUpCase(StrBuf *Buf);
 void StrBufEUid_unescapize(StrBuf *target, const StrBuf *source);
 void StrBufEUid_escapize(StrBuf *target, const StrBuf *source);
diff --git a/libcitadel/lib/stringbuf.c b/libcitadel/lib/stringbuf.c
index 9093049bf..892f99e31 100644
--- a/libcitadel/lib/stringbuf.c
+++ b/libcitadel/lib/stringbuf.c
@@ -1140,6 +1140,29 @@ void StrBufCutRight(StrBuf *Buf, int nChars)
 }
 
 
+/*
+ * Strip leading and trailing spaces from a string; with premeasured and adjusted length.
+ * buf - the string to modify
+ * len - length of the string. 
+ */
+void StrBufTrim(StrBuf *Buf)
+{
+	int delta = 0;
+	if ((Buf == NULL) || (Buf->BufUsed == 0)) return;
+
+	while ((Buf->BufUsed > delta) && (isspace(Buf->buf[delta]))){
+		delta ++;
+	}
+	if (delta > 0) StrBufCutLeft(Buf, delta);
+
+	if (Buf->BufUsed == 0) return;
+	while (isspace(Buf->buf[Buf->BufUsed - 1])){
+		Buf->BufUsed --;
+	}
+	Buf->buf[Buf->BufUsed] = '\0';
+}
+
+
 void StrBufUpCase(StrBuf *Buf) 
 {
 	char *pch, *pche;
-- 
2.39.2