Contents of /trunk/mkinitrd-magellan/klibc/usr/dash/parser.h
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Wed Aug 18 21:11:40 2010 UTC (13 years, 8 months ago) by niro
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Wed Aug 18 21:11:40 2010 UTC (13 years, 8 months ago) by niro
File MIME type: text/plain
File size: 3645 byte(s)
-updated to klibc-1.5.19
1 | /*- |
2 | * Copyright (c) 1991, 1993 |
3 | * The Regents of the University of California. All rights reserved. |
4 | * Copyright (c) 1997-2005 |
5 | * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to Berkeley by |
8 | * Kenneth Almquist. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * 3. Neither the name of the University nor the names of its contributors |
19 | * may be used to endorse or promote products derived from this software |
20 | * without specific prior written permission. |
21 | * |
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
32 | * SUCH DAMAGE. |
33 | * |
34 | * @(#)parser.h 8.3 (Berkeley) 5/4/95 |
35 | */ |
36 | |
37 | /* control characters in argument strings */ |
38 | #define CTL_FIRST -127 /* first 'special' character */ |
39 | #define CTLESC -127 /* escape next character */ |
40 | #define CTLVAR -126 /* variable defn */ |
41 | #define CTLENDVAR -125 |
42 | #define CTLBACKQ -124 |
43 | #define CTLARI -122 /* arithmetic expression */ |
44 | #define CTLENDARI -121 |
45 | #define CTLQUOTEMARK -120 |
46 | #define CTL_LAST -120 /* last 'special' character */ |
47 | |
48 | /* variable substitution byte (follows CTLVAR) */ |
49 | #define VSTYPE 0x0f /* type of variable substitution */ |
50 | #define VSNUL 0x10 /* colon--treat the empty string as unset */ |
51 | |
52 | /* values of VSTYPE field */ |
53 | #define VSNORMAL 0x1 /* normal variable: $var or ${var} */ |
54 | #define VSMINUS 0x2 /* ${var-text} */ |
55 | #define VSPLUS 0x3 /* ${var+text} */ |
56 | #define VSQUESTION 0x4 /* ${var?message} */ |
57 | #define VSASSIGN 0x5 /* ${var=text} */ |
58 | #define VSTRIMRIGHT 0x6 /* ${var%pattern} */ |
59 | #define VSTRIMRIGHTMAX 0x7 /* ${var%%pattern} */ |
60 | #define VSTRIMLEFT 0x8 /* ${var#pattern} */ |
61 | #define VSTRIMLEFTMAX 0x9 /* ${var##pattern} */ |
62 | #define VSLENGTH 0xa /* ${#var} */ |
63 | |
64 | /* values of checkkwd variable */ |
65 | #define CHKALIAS 0x1 |
66 | #define CHKKWD 0x2 |
67 | #define CHKNL 0x4 |
68 | #define CHKEOFMARK 0x8 |
69 | |
70 | |
71 | /* |
72 | * NEOF is returned by parsecmd when it encounters an end of file. It |
73 | * must be distinct from NULL, so we use the address of a variable that |
74 | * happens to be handy. |
75 | */ |
76 | extern int tokpushback; |
77 | #define NEOF ((union node *)&tokpushback) |
78 | extern int whichprompt; /* 1 == PS1, 2 == PS2 */ |
79 | extern int checkkwd; |
80 | extern int startlinno; /* line # where last token started */ |
81 | |
82 | |
83 | union node *parsecmd(int); |
84 | void fixredir(union node *, const char *, int); |
85 | const char *getprompt(void *); |
86 | const char *const *findkwd(const char *); |
87 | char *endofname(const char *); |
88 | const char *expandstr(const char *); |
89 | |
90 | static inline int |
91 | goodname(const char *p) |
92 | { |
93 | return !*endofname(p); |
94 | } |