revert "moved 'colm' dir to 'src'"

Colm includes a library component with headers installed to a private dir
inside include: $prefix/include/colm. We need our headers to reference each
other using this colm prefix. This needs to be true for compiling our source
and also for compiling external programs. It is conventient to have all the
source in a directory called colm and then to use -I <source-root> when
building colm. We use $prefix/include when building external programs.

This reverts commit 247904a84430b8c9151fa6afb68f01b60afb92c9.

1 files changed, 283 insertions, 0 deletions

diff --git a/colm/keyops.h b/colm/keyops.h
new file mode 100644
index 00000000..1808c6a6
--- /dev/null
+++ b/colm/keyops.h
@@ -0,0 +1,283 @@
+/*
+ *  Copyright 2001-2012 Adrian Thurston <thurston@complang.org>
+ */
+
+/*  This file is part of Colm.
+ *
+ *  Colm is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  Colm is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ * 
+ *  You should have received a copy of the GNU General Public License
+ *  along with Colm; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+
+#ifndef _KEYOPS_H
+#define _KEYOPS_H
+
+#include <fstream>
+#include <climits>
+
+enum MarkType
+{
+	MarkNone = 0,
+	MarkMark
+};
+
+typedef unsigned long long Size;
+
+struct Key
+{
+private:
+	long key;
+
+public:
+	friend inline Key operator+(const Key key1, const Key key2);
+	friend inline Key operator-(const Key key1, const Key key2);
+	friend inline Key operator/(const Key key1, const Key key2);
+	friend inline long operator&(const Key key1, const Key key2);
+
+	friend inline bool operator<( const Key key1, const Key key2 );
+	friend inline bool operator<=( const Key key1, const Key key2 );
+	friend inline bool operator>( const Key key1, const Key key2 );
+	friend inline bool operator>=( const Key key1, const Key key2 );
+	friend inline bool operator==( const Key key1, const Key key2 );
+	friend inline bool operator!=( const Key key1, const Key key2 );
+
+	friend struct KeyOps;
+	
+	Key( ) {}
+	Key( const Key &key ) : key(key.key) {}
+	Key( long key ) : key(key) {}
+
+	/* Returns the value used to represent the key. This value must be
+	 * interpreted based on signedness. */
+	long getVal() const { return key; };
+
+	/* Returns the key casted to a long long. This form of the key does not
+	 * require and signedness interpretation. */
+	long long getLongLong() const;
+
+	bool isUpper() const { return ( 'A' <= key && key <= 'Z' ); }
+	bool isLower() const { return ( 'a' <= key && key <= 'z' ); }
+	bool isPrintable() const { return ( 32 <= key && key < 127 ); }
+
+	Key toUpper() const
+		{ return Key( 'A' + ( key - 'a' ) ); }
+	Key toLower() const
+		{ return Key( 'a' + ( key - 'A' ) ); }
+
+	void operator+=( const Key other )
+	{
+		/* FIXME: must be made aware of isSigned. */
+		key += other.key;
+	}
+
+	void operator-=( const Key other )
+	{
+		/* FIXME: must be made aware of isSigned. */
+		key -= other.key;
+	}
+
+	void operator|=( const Key other )
+	{
+		/* FIXME: must be made aware of isSigned. */
+		key |= other.key;
+	}
+
+	/* Decrement. Needed only for ranges. */
+	inline void decrement();
+	inline void increment();
+};
+
+struct HostType
+{
+	const char *data1;
+	const char *data2;
+	bool isSigned;
+	long long minVal;
+	long long maxVal;
+	unsigned int size;
+};
+
+struct HostLang
+{
+	HostType *hostTypes;
+	int numHostTypes;
+	HostType *defaultAlphType;
+	bool explicitUnsigned;
+};
+
+
+/* Target language. */
+enum HostLangType
+{
+	CCode,
+	DCode,
+	JavaCode,
+	RubyCode
+};
+
+extern HostLang *hostLang;
+extern HostLangType hostLangType;
+
+extern HostLang hostLangC;
+extern HostLang hostLangD;
+extern HostLang hostLangJava;
+extern HostLang hostLangRuby;
+
+/* An abstraction of the key operators that manages key operations such as
+ * comparison and increment according the signedness of the key. */
+struct KeyOps
+{
+	/* Default to signed alphabet. */
+	KeyOps() :
+		isSigned(true),
+		alphType(0)
+	{}
+
+	/* Default to signed alphabet. */
+	KeyOps( bool isSigned ) 
+		:isSigned(isSigned) {}
+
+	bool isSigned;
+	Key minKey, maxKey;
+	HostType *alphType;
+
+	void setAlphType( HostType *alphType )
+	{
+		this->alphType = alphType;
+		isSigned = alphType->isSigned;
+		if ( isSigned ) {
+			minKey = (long) alphType->minVal;
+			maxKey = (long) alphType->maxVal;
+		}
+		else {
+			minKey = (long) (unsigned long) alphType->minVal; 
+			maxKey = (long) (unsigned long) alphType->maxVal;
+		}
+	}
+
+	/* Compute the distance between two keys. */
+	Size span( Key key1, Key key2 )
+	{
+		return isSigned ? 
+			(unsigned long long)(
+				(long long)key2.key - 
+				(long long)key1.key + 1) : 
+			(unsigned long long)(
+				(unsigned long)key2.key) - 
+				(unsigned long long)((unsigned long)key1.key) + 1;
+	}
+
+	Size alphSize()
+		{ return span( minKey, maxKey ); }
+
+	HostType *typeSubsumes( long long maxVal )
+	{
+		for ( int i = 0; i < hostLang->numHostTypes; i++ ) {
+			if ( maxVal <= hostLang->hostTypes[i].maxVal )
+				return hostLang->hostTypes + i;
+		}
+		return 0;
+	}
+
+	HostType *typeSubsumes( bool isSigned, long long maxVal )
+	{
+		for ( int i = 0; i < hostLang->numHostTypes; i++ ) {
+			if ( ( (isSigned && hostLang->hostTypes[i].isSigned) || !isSigned ) &&
+					maxVal <= hostLang->hostTypes[i].maxVal )
+				return hostLang->hostTypes + i;
+		}
+		return 0;
+	}
+};
+
+extern KeyOps *keyOps;
+
+inline bool operator<( const Key key1, const Key key2 )
+{
+	return keyOps->isSigned ? key1.key < key2.key : 
+		(unsigned long)key1.key < (unsigned long)key2.key;
+}
+
+inline bool operator<=( const Key key1, const Key key2 )
+{
+	return keyOps->isSigned ?  key1.key <= key2.key : 
+		(unsigned long)key1.key <= (unsigned long)key2.key;
+}
+
+inline bool operator>( const Key key1, const Key key2 )
+{
+	return keyOps->isSigned ? key1.key > key2.key : 
+		(unsigned long)key1.key > (unsigned long)key2.key;
+}
+
+inline bool operator>=( const Key key1, const Key key2 )
+{
+	return keyOps->isSigned ? key1.key >= key2.key : 
+		(unsigned long)key1.key >= (unsigned long)key2.key;
+}
+
+inline bool operator==( const Key key1, const Key key2 )
+{
+	return key1.key == key2.key;
+}
+
+inline bool operator!=( const Key key1, const Key key2 )
+{
+	return key1.key != key2.key;
+}
+
+/* Decrement. Needed only for ranges. */
+inline void Key::decrement()
+{
+	key = keyOps->isSigned ? key - 1 : ((unsigned long)key)-1;
+}
+
+/* Increment. Needed only for ranges. */
+inline void Key::increment()
+{
+	key = keyOps->isSigned ? key+1 : ((unsigned long)key)+1;
+}
+
+inline long long Key::getLongLong() const
+{
+	return keyOps->isSigned ? (long long)key : (long long)(unsigned long)key;
+}
+
+inline Key operator+(const Key key1, const Key key2)
+{
+	/* FIXME: must be made aware of isSigned. */
+	return Key( key1.key + key2.key );
+}
+
+inline Key operator-(const Key key1, const Key key2)
+{
+	/* FIXME: must be made aware of isSigned. */
+	return Key( key1.key - key2.key );
+}
+
+inline long operator&(const Key key1, const Key key2)
+{
+	/* FIXME: must be made aware of isSigned. */
+	return key1.key & key2.key;
+}
+
+inline Key operator/(const Key key1, const Key key2)
+{
+	/* FIXME: must be made aware of isSigned. */
+	return key1.key / key2.key;
+}
+
+const char *findFileExtension( const char *stemFile );
+char *fileNameFromStem( const char *stemFile, const char *suffix );
+
+#endif /* _KEYOPS_H */