Virgin import of FILE 3.32

1 files changed, 159 insertions, 0 deletions

diff --git a/contrib/file/names.h b/contrib/file/names.h
new file mode 100644
index 0000000..856632a
--- /dev/null
+++ b/contrib/file/names.h
@@ -0,0 +1,159 @@
+/*
+ * Names.h - names and types used by ascmagic in file(1).
+ * These tokens are here because they can appear anywhere in
+ * the first HOWMANY bytes, while tokens in /etc/magic must
+ * appear at fixed offsets into the file. Don't make HOWMANY
+ * too high unless you have a very fast CPU.
+ *
+ * Copyright (c) Ian F. Darwin, 1987.
+ * Written by Ian F. Darwin.
+ *
+ * See LEGAL.NOTICE
+ *
+ * $Id: names.h,v 1.18 2000/08/05 17:36:49 christos Exp $
+ */
+
+/*
+	modified by Chris Lowth - 9 April 2000
+	to add mime type strings to the types table.
+*/
+
+/* these types are used to index the table 'types': keep em in sync! */
+#define	L_C	0		/* first and foremost on UNIX */
+#define	L_CC	1		/* Bjarne's postincrement */
+#define	L_FORT	2		/* the oldest one */
+#define	L_MAKE	3		/* Makefiles */
+#define	L_PLI	4		/* PL/1 */
+#define	L_MACH	5		/* some kinda assembler */
+#define	L_ENG	6		/* English */
+#define	L_PAS	7		/* Pascal */
+#define	L_MAIL	8		/* Electronic mail */
+#define	L_NEWS	9		/* Usenet Netnews */
+#define	L_JAVA	10		/* Java code */
+#define	L_HTML	11		/* HTML */
+#define	L_BCPL	12		/* BCPL */
+#define	L_M4	13		/* M4 */
+
+static const struct {
+	char *human;
+	char *mime;
+} types[] = {
+	{ "C program",					"text/x-c", },
+	{ "C++ program",				"text/x-c++" },
+	{ "FORTRAN program",				"text/x-fortran" },
+	{ "make commands",				"text/x-makefile" },
+	{ "PL/1 program",				"text/x-pl1" },
+	{ "assembler program",				"text/x-asm" },
+	{ "English",					"text/plain, English" },
+	{ "Pascal program",				"text/x-pascal" },
+	{ "mail",					"text/x-mail" },
+	{ "news",					"text/x-news" },
+	{ "Java program",				"text/x-java" },
+	{ "HTML document",				"text/html", },
+	{ "BCPL program",				"text/x-bcpl" },
+	{ "M4 macro language pre-processor",		"text/x-m4" },
+	{ "can't happen error on names.h/types",	"error/x-error" },
+	{ 0, 0}
+};
+
+/*
+ * XXX - how should we distinguish Java from C++?
+ * The trick used in a Debian snapshot, of having "extends" or "implements"
+ * as tags for Java, doesn't work very well, given that those keywords
+ * are often preceded by "class", which flags it as C++.
+ *
+ * Perhaps we need to be able to say
+ *
+ *	If "class" then
+ *
+ *		if "extends" or "implements" then
+ *			Java
+ *		else
+ *			C++
+ *	endif
+ *
+ * Or should we use other keywords, such as "package" or "import"?
+ * Unfortunately, Ada95 uses "package", and Modula-3 uses "import",
+ * although I infer from the language spec at
+ *
+ *	http://www.research.digital.com/SRC/m3defn/html/m3.html
+ *
+ * that Modula-3 uses "IMPORT" rather than "import", i.e. it must be
+ * in all caps.
+ *
+ * So, for now, we go with "import".  We must put it before the C++
+ * stuff, so that we don't misidentify Java as C++.  Not using "package"
+ * means we won't identify stuff that defines a package but imports
+ * nothing; hopefully, very little Java code imports nothing (one of the
+ * reasons for doing OO programming is to import as much as possible
+ * and write only what you need to, right?).
+ *
+ * Unfortunately, "import" may cause us to misidentify English text
+ * as Java, as it comes after "the" and "The".  Perhaps we need a fancier
+ * heuristic to identify Java?
+ */
+static struct names {
+	const char *name;
+	short type;
+} names[] = {
+	/* These must be sorted by eye for optimal hit rate */
+	/* Add to this list only after substantial meditation */
+	{"dnl",		L_M4},
+	{"import",	L_JAVA},
+	{"\"libhdr\"",	L_BCPL},
+	{"\"LIBHDR\"",	L_BCPL},
+	{"//",		L_CC},
+	{"template",	L_CC},
+	{"virtual",	L_CC},
+	{"class",	L_CC},
+	{"public:",	L_CC},
+	{"private:",	L_CC},
+	{"/*",		L_C},	/* must precede "The", "the", etc. */
+	{"#include",	L_C},
+	{"char",	L_C},
+	{"The",		L_ENG},
+	{"the",		L_ENG},
+	{"double",	L_C},
+	{"extern",	L_C},
+	{"float",	L_C},
+	{"struct",	L_C},
+	{"union",	L_C},
+	{"CFLAGS",	L_MAKE},
+	{"LDFLAGS",	L_MAKE},
+	{"all:",	L_MAKE},
+	{".PRECIOUS",	L_MAKE},
+/* Too many files of text have these words in them.  Find another way
+ * to recognize Fortrash.
+ */
+#ifdef	NOTDEF
+	{"subroutine",	L_FORT},
+	{"function",	L_FORT},
+	{"block",	L_FORT},
+	{"common",	L_FORT},
+	{"dimension",	L_FORT},
+	{"integer",	L_FORT},
+	{"data",	L_FORT},
+#endif	/*NOTDEF*/
+	{".ascii",	L_MACH},
+	{".asciiz",	L_MACH},
+	{".byte",	L_MACH},
+	{".even",	L_MACH},
+	{".globl",	L_MACH},
+	{".text",	L_MACH},
+	{"clr",		L_MACH},
+	{"(input,",	L_PAS},
+	{"dcl",		L_PLI},
+	{"Received:",	L_MAIL},
+	{">From",	L_MAIL},
+	{"Return-Path:",L_MAIL},
+	{"Cc:",		L_MAIL},
+	{"Newsgroups:",	L_NEWS},
+	{"Path:",	L_NEWS},
+	{"Organization:",L_NEWS},
+	{"href=",	L_HTML},
+	{"HREF=",	L_HTML},
+	{"<body",	L_HTML},
+	{"<BODY",	L_HTML},
+	{NULL,		0}
+};
+#define NNAMES ((sizeof(names)/sizeof(struct names)) - 1)