Annotation of /trunk/mkinitrd-magellan/klibc/usr/dash/parser.h
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
File MIME type: text/plain
File size: 3788 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
| 1 | niro | 532 | /*- |
| 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 CTLQUOTE 01 /* ored with CTLBACKQ code if in quotes */ | ||
| 44 | /* CTLBACKQ | CTLQUOTE == 133 */ | ||
| 45 | #define CTLARI -122 /* arithmetic expression */ | ||
| 46 | #define CTLENDARI -121 | ||
| 47 | #define CTLQUOTEMARK -120 | ||
| 48 | #define CTL_LAST -120 /* last 'special' character */ | ||
| 49 | |||
| 50 | /* variable substitution byte (follows CTLVAR) */ | ||
| 51 | #define VSTYPE 0x0f /* type of variable substitution */ | ||
| 52 | #define VSNUL 0x10 /* colon--treat the empty string as unset */ | ||
| 53 | #define VSQUOTE 0x80 /* inside double quotes--suppress splitting */ | ||
| 54 | |||
| 55 | /* values of VSTYPE field */ | ||
| 56 | #define VSNORMAL 0x1 /* normal variable: $var or ${var} */ | ||
| 57 | #define VSMINUS 0x2 /* ${var-text} */ | ||
| 58 | #define VSPLUS 0x3 /* ${var+text} */ | ||
| 59 | #define VSQUESTION 0x4 /* ${var?message} */ | ||
| 60 | #define VSASSIGN 0x5 /* ${var=text} */ | ||
| 61 | #define VSTRIMRIGHT 0x6 /* ${var%pattern} */ | ||
| 62 | #define VSTRIMRIGHTMAX 0x7 /* ${var%%pattern} */ | ||
| 63 | #define VSTRIMLEFT 0x8 /* ${var#pattern} */ | ||
| 64 | #define VSTRIMLEFTMAX 0x9 /* ${var##pattern} */ | ||
| 65 | #define VSLENGTH 0xa /* ${#var} */ | ||
| 66 | |||
| 67 | /* values of checkkwd variable */ | ||
| 68 | #define CHKALIAS 0x1 | ||
| 69 | #define CHKKWD 0x2 | ||
| 70 | #define CHKNL 0x4 | ||
| 71 | |||
| 72 | |||
| 73 | /* | ||
| 74 | * NEOF is returned by parsecmd when it encounters an end of file. It | ||
| 75 | * must be distinct from NULL, so we use the address of a variable that | ||
| 76 | * happens to be handy. | ||
| 77 | */ | ||
| 78 | extern int tokpushback; | ||
| 79 | #define NEOF ((union node *)&tokpushback) | ||
| 80 | extern int whichprompt; /* 1 == PS1, 2 == PS2 */ | ||
| 81 | extern int checkkwd; | ||
| 82 | extern int startlinno; /* line # where last token started */ | ||
| 83 | |||
| 84 | |||
| 85 | union node *parsecmd(int); | ||
| 86 | void fixredir(union node *, const char *, int); | ||
| 87 | const char *getprompt(void *); | ||
| 88 | const char *const *findkwd(const char *); | ||
| 89 | char *endofname(const char *); | ||
| 90 | const char *expandstr(const char *); | ||
| 91 | |||
| 92 | static inline int | ||
| 93 | goodname(const char *p) | ||
| 94 | { | ||
| 95 | return !*endofname(p); | ||
| 96 | } |