added new capability to property replacer.

Multiple immediately successive field delimiters are treated as
a single one.

Signed-off-by: Rainer Gerhards <rgerhards@adiscon.com>

ChangeLog

@@ -1,5 +1,8 @@
 ---------------------------------------------------------------------------
 Version 3.21.5  [DEVEL] (rgerhards), 2008-09-??
+- added new capability to property replacer: multiple immediately
+  successive field delimiters are treated as a single one.
+  Thanks to Zhuang Yuyao for the patch.
 ---------------------------------------------------------------------------
 Version 3.21.4  [DEVEL] (rgerhards), 2008-09-04
 - removed compile time fixed message size limit (was 2K), limit can now

runtime/msg.c

@@ -1809,6 +1809,11 @@ char *MsgGetProp(msg_t *pMsg, struct templateEntry *pTpe,
 				++pFld; /* skip to field terminator */
 			if(*pFld == pTpe->data.field.field_delim) {
 				++pFld; /* eat it */
+				if (pTpe->data.field.field_expand != 0) {
+					while (*pFld == pTpe->data.field.field_delim) {
+						++pFld;
+					}
+				}
 				++iCurrFld;
 			}
 		}

template.c

@@ -603,6 +603,7 @@ static int do_Parameter(unsigned char **pp, struct template *pTpl)
 			/* now we fall through the "regular" FromPos code */
 #endif /* #ifdef FEATURE_REGEXP */
 			if(*p == 'F') {
+				pTpe->data.field.field_expand = 0;
 				/* we have a field counter, so indicate it in the template */
 				++p; /* eat 'F' */
 				if (*p == ':') {
@@ -630,6 +631,10 @@ static int do_Parameter(unsigned char **pp, struct template *pTpl)
 							pTpe->data.field.field_delim = 9;
 						  } else {
 							pTpe->data.field.field_delim = iNum;
+							if (*p == '+') {
+								pTpe->data.field.field_expand = 1;
+								p ++;
+							}
 						  }
 					}
 				} else {

template.h

@@ -84,6 +84,8 @@ struct templateEntry {
 #endif
 			unsigned has_fields; /* support for field-counting: field to extract */
 			unsigned char field_delim; /* support for field-counting: field delemiter char */
+			int field_expand;	/* use multiple instances of the field delimiter as a single one? */
+
 			enum tplFormatTypes eDateFormat;
 			enum tplFormatCaseConvTypes eCaseConv;
 			struct { 		/* bit fields! */