ragel-6.9ragel-6.9

1 files changed, 381 insertions, 0 deletions

diff --git a/ragel/common.cpp b/ragel/common.cpp
new file mode 100644
index 0000000..3047e70
--- /dev/null
+++ b/ragel/common.cpp
@@ -0,0 +1,381 @@
+/*
+ *  Copyright 2006-2007 Adrian Thurston <thurston@complang.org>
+ */
+
+/*  This file is part of Ragel.
+ *
+ *  Ragel 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.
+ * 
+ *  Ragel 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 Ragel; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+
+#include "pcheck.h"
+#include "common.h"
+#include "stdlib.h"
+#include <string.h>
+#include <assert.h>
+
+HostType hostTypesC[] =
+{
+	{ "char",     0,       "char",    true,   true,  false,  CHAR_MIN,  CHAR_MAX,   sizeof(char) },
+	{ "unsigned", "char",  "uchar",   false,  true,  false,  0,         UCHAR_MAX,  sizeof(unsigned char) },
+	{ "short",    0,       "short",   true,   true,  false,  SHRT_MIN,  SHRT_MAX,   sizeof(short) },
+	{ "unsigned", "short", "ushort",  false,  true,  false,  0,         USHRT_MAX,  sizeof(unsigned short) },
+	{ "int",      0,       "int",     true,   true,  false,  INT_MIN,   INT_MAX,    sizeof(int) },
+	{ "unsigned", "int",   "uint",    false,  true,  false,  0,         UINT_MAX,   sizeof(unsigned int) },
+	{ "long",     0,       "long",    true,   true,  false,  LONG_MIN,  LONG_MAX,   sizeof(long) },
+	{ "unsigned", "long",  "ulong",   false,  true,  false,  0,         ULONG_MAX,  sizeof(unsigned long) }
+};
+
+#define S8BIT_MIN  -128
+#define S8BIT_MAX  127
+
+#define U8BIT_MIN  0
+#define U8BIT_MAX  255
+
+#define S16BIT_MIN -32768
+#define S16BIT_MAX 32767
+
+#define U16BIT_MIN 0
+#define U16BIT_MAX 65535
+
+#define S31BIT_MIN -1073741824L
+#define S31BIT_MAX 1073741823L
+
+#define S32BIT_MIN -2147483648L
+#define S32BIT_MAX 2147483647L
+
+#define U32BIT_MIN 0
+#define U32BIT_MAX 4294967295UL
+
+#define S64BIT_MIN -9223372036854775807LL
+#define S64BIT_MAX 9223372036854775807LL
+
+#define U64BIT_MIN 0
+#define U64BIT_MAX 18446744073709551615ULL
+
+HostType hostTypesD[] =
+{
+	{ "byte",    0,  "byte",    true,   true,  false,  CHAR_MIN,  CHAR_MAX,    1 },
+	{ "ubyte",   0,  "ubyte",   false,  true,  false,  0,         UCHAR_MAX,   1 },
+	{ "char",    0,  "char",    false,  true,  false,  0,         UCHAR_MAX,   1 },
+	{ "short",   0,  "short",   true,   true,  false,  SHRT_MIN,  SHRT_MAX,    2 },
+	{ "ushort",  0,  "ushort",  false,  true,  false,  0,         USHRT_MAX,   2 },
+	{ "wchar",   0,  "wchar",   false,  true,  false,  0,         USHRT_MAX,   2 },
+	{ "int",     0,  "int",     true,   true,  false,  INT_MIN,   INT_MAX,     4 },
+	{ "uint",    0,  "uint",    false,  true,  false,  0,         UINT_MAX,    4 },
+	{ "dchar",   0,  "dchar",   false,  true,  false,  0,         UINT_MAX,    4 }
+};
+
+HostType hostTypesGo[] = 
+{
+	{ "byte",    0,  "uint8",   false,  true,  false,  U8BIT_MIN,  U8BIT_MAX,   1 },
+	{ "int8",    0,  "int8",    true,   true,  false,  S8BIT_MIN,  S8BIT_MAX,   1 },
+	{ "uint8",   0,  "uint8",   false,  true,  false,  U8BIT_MIN,  U8BIT_MAX,   1 },
+	{ "int16",   0,  "int16",   true,   true,  false,  S16BIT_MIN, S16BIT_MAX,  2 },
+	{ "uint16",  0,  "uint16",  false,  true,  false,  U16BIT_MIN, U16BIT_MAX,  2 },
+	{ "int32",   0,  "int32",   true,   true,  false,  S32BIT_MIN, S32BIT_MAX,  4 },
+	{ "uint32",  0,  "uint32",  false,  true,  false,  U32BIT_MIN, U32BIT_MAX,  4 },
+	{ "int64",   0,  "int64",   true,   true,  false,  S64BIT_MIN, S64BIT_MAX,  8 },
+	{ "uint64",  0,  "uint64",  false,  true,  false,  U64BIT_MIN, U64BIT_MAX,  8 },
+	{ "rune",    0,  "int32",   true,   true,  true,   S32BIT_MIN, S32BIT_MAX,  4 }
+};
+
+HostType hostTypesJava[] = 
+{
+	{ "byte",    0,  "byte",   true,   true,  false,  CHAR_MIN,  CHAR_MAX,    1 },
+	{ "short",   0,  "short",  true,   true,  false,  SHRT_MIN,  SHRT_MAX,    2 },
+	{ "char",    0,  "char",   false,  true,  false,  0,         USHRT_MAX,   2 },
+	{ "int",     0,  "int",    true,   true,  false,  INT_MIN,   INT_MAX,     4 },
+};
+
+/* What are the appropriate types for ruby? */
+HostType hostTypesRuby[] = 
+{
+	{ "char",    0,  "char",   true,   true,  false,  CHAR_MIN,  CHAR_MAX,    1 },
+	{ "int",     0,  "int",    true,   true,  false,  INT_MIN,   INT_MAX,     4 },
+};
+
+HostType hostTypesCSharp[] =
+{
+	{ "sbyte",   0,  "sbyte",   true,   true,  false,  CHAR_MIN,  CHAR_MAX,    1 },
+	{ "byte",    0,  "byte",    false,  true,  false,  0,         UCHAR_MAX,   1 },
+	{ "short",   0,  "short",   true,   true,  false,  SHRT_MIN,  SHRT_MAX,    2 },
+	{ "ushort",  0,  "ushort",  false,  true,  false,  0,         USHRT_MAX,   2 },
+	{ "char",    0,  "char",    false,  true,  true,   0,         USHRT_MAX,   2 },
+	{ "int",     0,  "int",     true,   true,  false,  INT_MIN,   INT_MAX,     4 },
+	{ "uint",    0,  "uint",    false,  true,  false,  0,         UINT_MAX,    4 },
+	{ "long",    0,  "long",    true,   true,  false,  LONG_MIN,  LONG_MAX,    8 },
+	{ "ulong",   0,  "ulong",   false,  true,  false,  0,         ULONG_MAX,   8 }
+};
+
+HostType hostTypesOCaml[] =
+{
+//	{ "char",   0,  "char",     false,  true,  false, 0,          UCHAR_MAX,  1 },
+	{ "int",    0,  "int",      true,   true,  false, S31BIT_MIN, S31BIT_MAX, 4 },
+};
+
+HostLang hostLangC =      { HostLang::C,      hostTypesC,      8,  hostTypesC+0,       true };
+HostLang hostLangD =      { HostLang::D,      hostTypesD,      9,  hostTypesD+2,       true };
+HostLang hostLangD2 =     { HostLang::D2,     hostTypesD,      9,  hostTypesD+2,       true };
+HostLang hostLangGo =     { HostLang::Go,     hostTypesGo,    10,  hostTypesGo+0,      false };
+HostLang hostLangJava =   { HostLang::Java,   hostTypesJava,   4,  hostTypesJava+2,    false };
+HostLang hostLangRuby =   { HostLang::Ruby,   hostTypesRuby,   2,  hostTypesRuby+0,    false };
+HostLang hostLangCSharp = { HostLang::CSharp, hostTypesCSharp, 9,  hostTypesCSharp+4,  true };
+HostLang hostLangOCaml =  { HostLang::OCaml,  hostTypesOCaml,  1,  hostTypesOCaml+0,   false };
+
+HostLang *hostLang = &hostLangC;
+
+HostType *findAlphType( const char *s1 )
+{
+	for ( int i = 0; i < hostLang->numHostTypes; i++ ) {
+		if ( strcmp( s1, hostLang->hostTypes[i].data1 ) == 0 && 
+				hostLang->hostTypes[i].data2 == 0 )
+		{
+			return hostLang->hostTypes + i;
+		}
+	}
+
+	return 0;
+}
+
+HostType *findAlphType( const char *s1, const char *s2 )
+{
+	for ( int i = 0; i < hostLang->numHostTypes; i++ ) {
+		if ( strcmp( s1, hostLang->hostTypes[i].data1 ) == 0 && 
+				hostLang->hostTypes[i].data2 != 0 && 
+				strcmp( s2, hostLang->hostTypes[i].data2 ) == 0 )
+		{
+			return hostLang->hostTypes + i;
+		}
+	}
+
+	return 0;
+}
+
+HostType *findAlphTypeInternal( const char *s1 )
+{
+	for ( int i = 0; i < hostLang->numHostTypes; i++ ) {
+		if ( strcmp( s1, hostLang->hostTypes[i].internalName ) == 0 )
+			return hostLang->hostTypes + i;
+	}
+
+	return 0;
+}
+
+/* Construct a new parameter checker with for paramSpec. */
+ParamCheck::ParamCheck( const char *paramSpec, int argc, const char **argv )
+:
+	state(noparam),
+	argOffset(0),
+	curArg(0),
+	iCurArg(1),
+	paramSpec(paramSpec), 
+	argc(argc), 
+	argv(argv)
+{
+}
+
+/* Check a single option. Returns the index of the next parameter.  Sets p to
+ * the arg character if valid, 0 otherwise.  Sets parg to the parameter arg if
+ * there is one, NULL otherwise. */
+bool ParamCheck::check()
+{
+	bool requiresParam;
+
+	if ( iCurArg >= argc ) {            /* Off the end of the arg list. */
+		state = noparam;
+		return false;
+	}
+
+	if ( argOffset != 0 && *argOffset == 0 ) {
+		/* We are at the end of an arg string. */
+		iCurArg += 1;
+		if ( iCurArg >= argc ) {
+			state = noparam;
+			return false;
+		}
+		argOffset = 0;
+	}
+
+	if ( argOffset == 0 ) {
+		/* Set the current arg. */
+		curArg = argv[iCurArg];
+
+		/* We are at the beginning of an arg string. */
+		if ( argv[iCurArg] == 0 ||        /* Argv[iCurArg] is null. */
+			 argv[iCurArg][0] != '-' ||   /* Not a param. */
+			 argv[iCurArg][1] == 0 ) {    /* Only a dash. */
+			parameter = 0;
+			paramArg = 0;
+
+			iCurArg += 1;
+			state = noparam;
+			return true;
+		}
+		argOffset = argv[iCurArg] + 1;
+	}
+
+	/* Get the arg char. */
+	char argChar = *argOffset;
+	
+	/* Loop over all the parms and look for a match. */
+	const char *pSpec = paramSpec;
+	while ( *pSpec != 0 ) {
+		char pSpecChar = *pSpec;
+
+		/* If there is a ':' following the char then
+		 * it requires a parm.  If a parm is required
+		 * then move ahead two in the parmspec. Otherwise
+		 * move ahead one in the parm spec. */
+		if ( pSpec[1] == ':' ) {
+			requiresParam = true;
+			pSpec += 2;
+		}
+		else {
+			requiresParam = false;
+			pSpec += 1;
+		}
+
+		/* Do we have a match. */
+		if ( argChar == pSpecChar ) {
+			if ( requiresParam ) {
+				if ( argOffset[1] == 0 ) {
+					/* The param must follow. */
+					if ( iCurArg + 1 == argc ) {
+						/* We are the last arg so there
+						 * cannot be a parameter to it. */
+						parameter = argChar;
+						paramArg = 0;
+						iCurArg += 1;
+						argOffset = 0;
+						state = invalid;
+						return true;
+					}
+					else {
+						/* the parameter to the arg is the next arg. */
+						parameter = pSpecChar;
+						paramArg = argv[iCurArg + 1];
+						iCurArg += 2;
+						argOffset = 0;
+						state = match;
+						return true;
+					}
+				}
+				else {
+					/* The param for the arg is built in. */
+					parameter = pSpecChar;
+					paramArg = argOffset + 1;
+					iCurArg += 1;
+					argOffset = 0;
+					state = match;
+					return true;
+				}
+			}
+			else {
+				/* Good, we matched the parm and no
+				 * arg is required. */
+				parameter = pSpecChar;
+				paramArg = 0;
+				argOffset += 1;
+				state = match;
+				return true;
+			}
+		}
+	}
+
+	/* We did not find a match. Bad Argument. */
+	parameter = argChar;
+	paramArg = 0;
+	argOffset += 1;
+	state = invalid;
+	return true;
+}
+
+/* Counts newlines before sending sync. */
+int output_filter::sync( )
+{
+	line += 1;
+	return std::filebuf::sync();
+}
+
+/* Counts newlines before sending data out to file. */
+std::streamsize output_filter::xsputn( const char *s, std::streamsize n )
+{
+	for ( int i = 0; i < n; i++ ) {
+		if ( s[i] == '\n' )
+			line += 1;
+	}
+	return std::filebuf::xsputn( s, n );
+}
+
+/* Scans a string looking for the file extension. If there is a file
+ * extension then pointer returned points to inside the string
+ * passed in. Otherwise returns null. */
+const char *findFileExtension( const char *stemFile )
+{
+	const char *ppos = stemFile + strlen(stemFile) - 1;
+
+	/* Scan backwards from the end looking for the first dot.
+	 * If we encounter a '/' before the first dot, then stop the scan. */
+	while ( 1 ) {
+		/* If we found a dot or got to the beginning of the string then
+		 * we are done. */
+		if ( ppos == stemFile || *ppos == '.' )
+			break;
+
+		/* If we hit a / then there is no extension. Done. */
+		if ( *ppos == '/' ) {
+			ppos = stemFile;
+			break;
+		}
+		ppos--;
+	} 
+
+	/* If we got to the front of the string then bail we 
+	 * did not find an extension  */
+	if ( ppos == stemFile )
+		ppos = 0;
+
+	return ppos;
+}
+
+/* Make a file name from a stem. Removes the old filename suffix and
+ * replaces it with a new one. Returns a newed up string. */
+const char *fileNameFromStem( const char *stemFile, const char *suffix )
+{
+	long len = strlen( stemFile );
+	assert( len > 0 );
+
+	/* Get the extension. */
+	const char *ppos = findFileExtension( stemFile );
+
+	/* If an extension was found, then shorten what we think the len is. */
+	if ( ppos != 0 )
+		len = ppos - stemFile;
+
+	/* Make the return string from the stem and the suffix. */
+	char *retVal = new char[ len + strlen( suffix ) + 1 ];
+	strncpy( retVal, stemFile, len );
+	strcpy( retVal + len, suffix );
+
+	return retVal;
+}
+
+exit_object endp;
+
+void operator<<( std::ostream &out, exit_object & )
+{
+    out << std::endl;
+    exit(1);
+}