From 2a3f8ddab3542bb0b7c456780eaf53f2e4dc363e Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Mon, 7 Dec 2015 14:26:09 +0000
Subject: Merge select and modify command's SQL parser

---
 libpqpp/command.cpp       | 21 +++++++++++++++++++++
 libpqpp/command.h         |  1 +
 libpqpp/modifycommand.cpp | 17 +----------------
 libpqpp/selectcommand.cpp | 17 +----------------
 4 files changed, 24 insertions(+), 32 deletions(-)

(limited to 'libpqpp')

diff --git a/libpqpp/command.cpp b/libpqpp/command.cpp
index ba12574..94079da 100644
--- a/libpqpp/command.cpp
+++ b/libpqpp/command.cpp
@@ -24,6 +24,27 @@ PQ::Command::~Command()
 	}
 }
 
+void
+PQ::Command::prepareSql(std::string & psql, const std::string & sql)
+{
+	char buf[4];
+	int p = 1;
+	bool inquote = false;
+	for(std::string::const_iterator i = sql.begin(); i != sql.end(); ++i) {
+		if (*i == '?' && !inquote) {
+			snprintf(buf, 4, "$%d", p++);
+			psql += buf;
+		}
+		else if (*i == '\'') {
+			inquote = !inquote;
+			psql += *i;
+		}
+		else {
+			psql += *i;
+		}
+	}
+}
+
 void
 PQ::Command::paramsAtLeast(unsigned int n)
 {
diff --git a/libpqpp/command.h b/libpqpp/command.h
index e6edac2..32faaa0 100644
--- a/libpqpp/command.h
+++ b/libpqpp/command.h
@@ -31,6 +31,7 @@ namespace PQ {
 
 			void bindNull(unsigned int);
 		protected:
+			static void prepareSql(std::string & psql, const std::string & sql);
 			const std::string stmntName;
 			const Connection * c;
 
diff --git a/libpqpp/modifycommand.cpp b/libpqpp/modifycommand.cpp
index 3eb41ec..460ec31 100644
--- a/libpqpp/modifycommand.cpp
+++ b/libpqpp/modifycommand.cpp
@@ -21,22 +21,7 @@ PQ::ModifyCommand::prepare() const
 	if (!prepared) {
 		std::string psql;
 		psql.reserve(sql.length() + 20);
-		char buf[4];
-		int p = 1;
-		bool inquote = false;
-		for(std::string::const_iterator i = sql.begin(); i != sql.end(); ++i) {
-			if (*i == '?' && !inquote) {
-				snprintf(buf, 4, "$%d", p++);
-				psql += buf;
-			}
-			else if (*i == '\'') {
-				inquote = !inquote;
-				psql += *i;
-			}
-			else {
-				psql += *i;
-			}
-		}
+		prepareSql(psql, sql);
 		c->checkResultFree(PQprepare(
 					c->conn, stmntName.c_str(), psql.c_str(), values.size(), NULL), PGRES_COMMAND_OK);
 		prepared = true;
diff --git a/libpqpp/selectcommand.cpp b/libpqpp/selectcommand.cpp
index 8e3ec36..2312dbb 100644
--- a/libpqpp/selectcommand.cpp
+++ b/libpqpp/selectcommand.cpp
@@ -37,25 +37,10 @@ PQ::SelectCommand::mkdeclare() const
 {
 	std::string psql;
 	psql.reserve(sql.length() + 40);
-	char buf[4];
-	int p = 1;
-	bool inquote = false;
 	psql += "DECLARE ";
 	psql += stmntName;
 	psql += " CURSOR FOR ";
-	for(std::string::const_iterator i = sql.begin(); i != sql.end(); ++i) {
-		if (*i == '?' && !inquote) {
-			snprintf(buf, 4, "$%d", p++);
-			psql += buf;
-		}
-		else if (*i == '\'') {
-			inquote = !inquote;
-			psql += *i;
-		}
-		else {
-			psql += *i;
-		}
-	}
+	prepareSql(psql, sql);
 	return psql;
 }
 
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