1 /*
2 * Copyright (c) Ian F. Darwin 1986-1995.
3 * Software written by Ian F. Darwin and others;
4 * maintained 1995-present by Christos Zoulas and others.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice immediately at the beginning of the file, without modification,
11 * this list of conditions, and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28 /*
29 * Names.h - names and types used by ascmagic in file(1).
30 * These tokens are here because they can appear anywhere in
31 * the first HOWMANY bytes, while tokens in MAGIC must
32 * appear at fixed offsets into the file. Don't make HOWMANY
33 * too high unless you have a very fast CPU.
34 *
35 * $File: names.h,v 1.32 2008/02/11 00:19:29 rrt Exp $
36 */
37
38 /*
39 modified by Chris Lowth - 9 April 2000
40 to add mime type strings to the types table.
41 */
42
43 /* these types are used to index the table 'types': keep em in sync! */
44 #define L_C 0 /* first and foremost on UNIX */
45 #define L_CC 1 /* Bjarne's postincrement */
46 #define L_MAKE 2 /* Makefiles */
47 #define L_PLI 3 /* PL/1 */
48 #define L_MACH 4 /* some kinda assembler */
49 #define L_ENG 5 /* English */
50 #define L_PAS 6 /* Pascal */
51 #define L_MAIL 7 /* Electronic mail */
52 #define L_NEWS 8 /* Usenet Netnews */
53 #define L_JAVA 9 /* Java code */
54 #define L_HTML 10 /* HTML */
55 #define L_BCPL 11 /* BCPL */
56 #define L_M4 12 /* M4 */
57 #define L_PO 13 /* PO */
58
59 static const struct {
60 char human[48];
61 char mime[16];
62 } types[] = {
63 { "C program", "text/x-c", },
64 { "C++ program", "text/x-c++" },
65 { "make commands", "text/x-makefile" },
66 { "PL/1 program", "text/x-pl1" },
67 { "assembler program", "text/x-asm" },
68 { "English", "text/plain" },
69 { "Pascal program", "text/x-pascal" },
70 { "mail", "text/x-mail" },
71 { "news", "text/x-news" },
72 { "Java program", "text/x-java" },
73 { "HTML document", "text/html", },
74 { "BCPL program", "text/x-bcpl" },
75 { "M4 macro language pre-processor", "text/x-m4" },
76 { "PO (gettext message catalogue)", "text/x-po" },
77 { "cannot happen error on names.h/types", "error/x-error" }
78 };
79
80 /*
81 * XXX - how should we distinguish Java from C++?
82 * The trick used in a Debian snapshot, of having "extends" or "implements"
83 * as tags for Java, doesn't work very well, given that those keywords
84 * are often preceded by "class", which flags it as C++.
85 *
86 * Perhaps we need to be able to say
87 *
88 * If "class" then
89 *
90 * if "extends" or "implements" then
91 * Java
92 * else
93 * C++
94 * endif
95 *
96 * Or should we use other keywords, such as "package" or "import"?
97 * Unfortunately, Ada95 uses "package", and Modula-3 uses "import",
98 * although I infer from the language spec at
99 *
100 * http://www.research.digital.com/SRC/m3defn/html/m3.html
101 *
102 * that Modula-3 uses "IMPORT" rather than "import", i.e. it must be
103 * in all caps.
104 *
105 * So, for now, we go with "import". We must put it before the C++
106 * stuff, so that we don't misidentify Java as C++. Not using "package"
107 * means we won't identify stuff that defines a package but imports
108 * nothing; hopefully, very little Java code imports nothing (one of the
109 * reasons for doing OO programming is to import as much as possible
110 * and write only what you need to, right?).
111 *
112 * Unfortunately, "import" may cause us to misidentify English text
113 * as Java, as it comes after "the" and "The". Perhaps we need a fancier
114 * heuristic to identify Java?
115 */
116 static const struct names {
117 char name[14];
118 short type;
119 } names[] = {
120 /* These must be sorted by eye for optimal hit rate */
121 /* Add to this list only after substantial meditation */
122 {"msgid", L_PO},
123 {"dnl", L_M4},
124 {"import", L_JAVA},
125 {"\"libhdr\"", L_BCPL},
126 {"\"LIBHDR\"", L_BCPL},
127 {"//", L_CC},
128 {"template", L_CC},
129 {"virtual", L_CC},
130 {"class", L_CC},
131 {"public:", L_CC},
132 {"private:", L_CC},
133 {"/*", L_C}, /* must precede "The", "the", etc. */
134 {"#include", L_C},
135 {"char", L_C},
136 {"The", L_ENG},
137 {"the", L_ENG},
138 {"double", L_C},
139 {"extern", L_C},
140 {"float", L_C},
141 {"struct", L_C},
142 {"union", L_C},
143 {"CFLAGS", L_MAKE},
144 {"LDFLAGS", L_MAKE},
145 {"all:", L_MAKE},
146 {".PRECIOUS", L_MAKE},
147 {".ascii", L_MACH},
148 {".asciiz", L_MACH},
149 {".byte", L_MACH},
150 {".even", L_MACH},
151 {".globl", L_MACH},
152 {".text", L_MACH},
153 {"clr", L_MACH},
154 {"(input,", L_PAS},
155 {"program", L_PAS},
156 {"record", L_PAS},
157 {"dcl", L_PLI},
158 {"Received:", L_MAIL},
159 {">From", L_MAIL},
160 {"Return-Path:",L_MAIL},
161 {"Cc:", L_MAIL},
162 {"Newsgroups:", L_NEWS},
163 {"Path:", L_NEWS},
164 {"Organization:",L_NEWS},
165 {"href=", L_HTML},
166 {"HREF=", L_HTML},
167 {"<body", L_HTML},
168 {"<BODY", L_HTML},
169 {"<html", L_HTML},
170 {"<HTML", L_HTML},
171 {"<!--", L_HTML},
172 };
173 #define NNAMES (sizeof(names)/sizeof(struct names))