150 lines
4.1 KiB
C
150 lines
4.1 KiB
C
/* $NetBSD: names.h,v 1.9 1999/11/01 17:39:26 christos Exp $ */
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/*
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* Names.h - names and types used by ascmagic in file(1).
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* These tokens are here because they can appear anywhere in
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* the first HOWMANY bytes, while tokens in MAGIC must
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* appear at fixed offsets into the file. Don't make HOWMANY
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* too high unless you have a very fast CPU.
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*
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* Copyright (c) Ian F. Darwin, 1987.
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* Written by Ian F. Darwin.
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*
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* See LEGAL.NOTICE
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*
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* Id: names.h,v 1.16 1999/01/13 15:44:08 christos Exp
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*/
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/* these types are used to index the table 'types': keep em in sync! */
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#define L_C 0 /* first and foremost on UNIX */
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#define L_CC 1 /* Bjarne's postincrement */
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#define L_FORT 2 /* the oldest one */
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#define L_MAKE 3 /* Makefiles */
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#define L_PLI 4 /* PL/1 */
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#define L_MACH 5 /* some kinda assembler */
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#define L_ENG 6 /* English */
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#define L_PAS 7 /* Pascal */
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#define L_MAIL 8 /* Electronic mail */
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#define L_NEWS 9 /* Usenet Netnews */
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#define L_JAVA 10 /* Java code */
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#define L_HTML 11 /* HTML */
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#define L_BCPL 12 /* BCPL */
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static const char *types[] = {
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"C program text",
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"C++ program text",
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"FORTRAN program text",
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"make commands text" ,
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"PL/1 program text",
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"assembler program text",
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"English text",
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"Pascal program text",
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"mail text",
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"news text",
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"Java program text",
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"HTML document text",
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"BCPL program text",
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"can't happen error on names.h/types",
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0};
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/*
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* XXX - how should we distinguish Java from C++?
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* The trick used in a Debian snapshot, of having "extends" or "implements"
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* as tags for Java, doesn't work very well, given that those keywords
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* are often preceded by "class", which flags it as C++.
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*
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* Perhaps we need to be able to say
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*
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* If "class" then
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*
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* if "extends" or "implements" then
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* Java
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* else
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* C++
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* endif
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*
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* Or should we use other keywords, such as "package" or "import"?
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* Unfortunately, Ada95 uses "package", and Modula-3 uses "import",
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* although I infer from the language spec at
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*
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* http://www.research.digital.com/SRC/m3defn/html/m3.html
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*
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* that Modula-3 uses "IMPORT" rather than "import", i.e. it must be
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* in all caps.
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*
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* So, for now, we go with "import". We must put it before the C++
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* stuff, so that we don't misidentify Java as C++. Not using "package"
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* means we won't identify stuff that defines a package but imports
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* nothing; hopefully, very little Java code imports nothing (one of the
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* reasons for doing OO programming is to import as much as possible
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* and write only what you need to, right?).
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*
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* Unfortunately, "import" may cause us to misidentify English text
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* as Java, as it comes after "the" and "The". Perhaps we need a fancier
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* heuristic to identify Java?
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*/
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static struct names {
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const char *name;
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short type;
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} names[] = {
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/* These must be sorted by eye for optimal hit rate */
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/* Add to this list only after substantial meditation */
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{"import", L_JAVA},
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{"\"libhdr\"", L_BCPL},
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{"\"LIBHDR\"", L_BCPL},
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{"//", L_CC},
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{"template", L_CC},
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{"virtual", L_CC},
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{"class", L_CC},
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{"public:", L_CC},
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{"private:", L_CC},
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{"/*", L_C}, /* must precede "The", "the", etc. */
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{"#include", L_C},
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{"char", L_C},
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{"The", L_ENG},
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{"the", L_ENG},
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{"double", L_C},
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{"extern", L_C},
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{"float", L_C},
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{"struct", L_C},
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{"union", L_C},
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{"CFLAGS", L_MAKE},
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{"LDFLAGS", L_MAKE},
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{"all:", L_MAKE},
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{".PRECIOUS", L_MAKE},
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/* Too many files of text have these words in them. Find another way
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* to recognize Fortrash.
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*/
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#ifdef NOTDEF
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{"subroutine", L_FORT},
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{"function", L_FORT},
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{"block", L_FORT},
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{"common", L_FORT},
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{"dimension", L_FORT},
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{"integer", L_FORT},
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{"data", L_FORT},
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#endif /*NOTDEF*/
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{".ascii", L_MACH},
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{".asciiz", L_MACH},
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{".byte", L_MACH},
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{".even", L_MACH},
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{".globl", L_MACH},
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{".text", L_MACH},
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{"clr", L_MACH},
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{"(input,", L_PAS},
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{"dcl", L_PLI},
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{"Received:", L_MAIL},
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{">From", L_MAIL},
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{"Return-Path:",L_MAIL},
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{"Cc:", L_MAIL},
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{"Newsgroups:", L_NEWS},
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{"Path:", L_NEWS},
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{"Organization:",L_NEWS},
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{"href=", L_HTML},
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{"HREF=", L_HTML},
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{"<body", L_HTML},
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{"<BODY", L_HTML},
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{NULL, 0}
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};
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#define NNAMES ((sizeof(names)/sizeof(struct names)) - 1)
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