From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Tue, 7 Sep 1999 00:13:27 +0000 (+0000)
Subject: Mike Ansley's fixes for long queries.  This change just
X-Git-Tag: REL7_0~1536
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=85712da90db24d508ceff878f31590223d344d7b;p=postgresql

Mike Ansley's fixes for long queries.  This change just
corrects flex myinput() routine so that it doesn't assume there is only
one bufferload of data.  We still have the issue of getting rid of
YY_USES_REJECT so that the scanner can cope with tokens larger than its
initial buffer size.
---

diff --git a/src/backend/parser/scan.l b/src/backend/parser/scan.l
index 35d42356bb..ece71b489f 100644
--- a/src/backend/parser/scan.l
+++ b/src/backend/parser/scan.l
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.52 1999/07/17 20:17:26 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.53 1999/09/07 00:13:27 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -491,11 +491,8 @@ int
 input()
 {
 	if (parseCh == NULL)
-	{
 		parseCh = parseString;
-		return(*parseCh++);
-	}
-	else if (*parseCh == '\0')
+	if (*parseCh == '\0')
 		return(0);
 	else
 		return(*parseCh++);
@@ -520,20 +517,17 @@ myinput(char* buf, int max)
 	int len, copylen;
 
 	if (parseCh == NULL)
-	{
-		len = strlen(parseString);
-		if (len >= max)
-			copylen = max - 1;
-		else
-			copylen = len;
-		if (copylen > 0)
-			memcpy(buf, parseString, copylen);
-		buf[copylen] = '\0';
 		parseCh = parseString;
-		return copylen;
-	}
+	len = strlen(parseCh);		/* remaining data available */
+	if (len >= max)
+		copylen = max - 1;
 	else
-		return 0; /* end of string */
+		copylen = len;
+	if (copylen > 0)
+		memcpy(buf, parseCh, copylen);
+	buf[copylen] = '\0';
+	parseCh += copylen;
+	return copylen;
 }
 #endif /* FLEX_SCANNER */