From 0ff3fdfaa52ee4b71632f201d6bfabb0ffbc36d7 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Fri, 30 Nov 2007 19:24:40 +0000
Subject: Fixed the overshoot in the Bu::TafReader, it was reading the
 lookahead character from the stream even when it should have known it was at
 the end, and then it was reading an extra character after that anyway :-P  It
 is now fixed, and the stream is positioned at the character immediately after
 the closing } of the root taf group, great for things like the svtools.

---
 src/minimacro.cpp | 17 +++++++++++++++
 src/minimacro.h   | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/tafreader.cpp | 16 +++++++++++---
 3 files changed, 93 insertions(+), 3 deletions(-)
 create mode 100644 src/minimacro.cpp
 create mode 100644 src/minimacro.h

(limited to 'src')

diff --git a/src/minimacro.cpp b/src/minimacro.cpp
new file mode 100644
index 0000000..274c13b
--- /dev/null
+++ b/src/minimacro.cpp
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2007 Xagasoft, All rights reserved.
+ *
+ * This file is part of the libbu++ library and is released under the
+ * terms of the license contained in the file LICENSE.
+ */
+
+#include "bu/minimacro.h"
+
+Bu::MiniMacro::MiniMacro()
+{
+}
+
+Bu::MiniMacro::~MiniMacro()
+{
+}
+
diff --git a/src/minimacro.h b/src/minimacro.h
new file mode 100644
index 0000000..e136015
--- /dev/null
+++ b/src/minimacro.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2007 Xagasoft, All rights reserved.
+ *
+ * This file is part of the libbu++ library and is released under the
+ * terms of the license contained in the file LICENSE.
+ */
+
+#ifndef BU_MINI_MACRO_H
+#define BU_MINI_MACRO_H
+
+namespace Bu
+{
+	/**
+	 * A processor for Libbu++ brand Mini Macros.  These are really simple, but
+	 * still fairly flexible.  It's mainly text replacement, but with a few
+	 * extras like filter functions and conditional text segments.  So far we
+	 * don't support loops or anything, I'm not sure we ever will.
+	 *
+	 * Anatomy of a mini macro:
+	 * - Every macro begins with a two character code, the first character is
+	 *   always '{', the second character determines the operation to perform.
+	 * - If the '{' is followed by a character that is not valid it is not
+	 *   considered for expansion and the characters are copied to the output.
+	 * - Every macro ends with a closing '}'
+	 * - Macro types:
+	 *   - '=': variable replacement.  The '=' is immediatley followed by the
+	 *     name of the variable to replace, then any number of optional filter
+	 *     segments.
+	 *   - '?': conditional text.  The '?' is immediately followed by the
+	 *     variable to test.  This works two ways, the variable can be alone, in
+	 *     which case it's existance is tested, or it can be followed by a "="
+	 *     and a string to compare to.  This is then followed by a text segment
+	 *     that will be used if the test is true, and an optional text segment
+	 *     to be used if the test is false.
+	 * - Segments:
+	 *   - Each segment is seperated by a colon.
+	 *   - Filter segments give the name of the filter, followed by
+	 *     parenthesies.  Parameters may be provided within the parenthesies.
+	 *   - Text segments should always be quoted, but may contain any characters
+	 *     within the quotes, backslash is used as per C/ANSI/ISO standard.
+	 *     You can also quote any text using [" "] instead of quotes, which
+	 *     allows for nested strings.  The [" token is only recognised within
+	 *     a macro.
+	 *
+	 *@verbatim
+	 {=name:tolower()}
+	 {=name:ccsplit("_"):toupper()}
+	 {?name:"name exists and is {=name}"}
+	 {?name:"{=name}":"no name!"}
+	 {?name="bob":"You're named bob!":"Who are you?  I only know bob..."}
+	 @endverbatim
+	 */
+	class MiniMacro
+	{
+	public:
+		MiniMacro();
+		virtual ~MiniMacro();
+
+	private:
+	};
+};
+
+#endif
diff --git a/src/tafreader.cpp b/src/tafreader.cpp
index aaac8d7..7054581 100644
--- a/src/tafreader.cpp
+++ b/src/tafreader.cpp
@@ -40,7 +40,7 @@ Bu::TafGroup *Bu::TafReader::readGroup()
 	if( c != '}' )
 		throw TafException("Expected '}'");
 
-	next();
+	//next();
 
 	return pGroup;
 }
@@ -184,7 +184,17 @@ bool Bu::TafReader::isws()
 
 void Bu::TafReader::next()
 {
-	c = la;
-	sIn.read( &la, 1 );
+	if( c == '}' )
+	{
+		sIn.read( &c, 1 );
+		if( c != '}' )
+			sIn.read( &la, 1 );
+	}
+	else
+	{
+		c = la;
+		if( c != '}' )
+			sIn.read( &la, 1 );
+	}
 }
 
-- 
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