src/expand.h

   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  *      @(#)expand.h    8.2 (Berkeley) 5/4/95
  35  */
  36
  37 #include <inttypes.h>
  38
  39 struct strlist {
  40         struct strlist *next;
  41         char *text;
  42 };
  43
  44
  45 struct arglist {
  46         struct strlist *list;
  47         struct strlist **lastp;
  48 };
  49
  50 /*
  51  * expandarg() flags
  52  */
  53 #define EXP_FULL        0x1     /* perform word splitting & file globbing */
  54 #define EXP_TILDE       0x2     /* do normal tilde expansion */
  55 #define EXP_VARTILDE    0x4     /* expand tildes in an assignment */
  56 #define EXP_REDIR       0x8     /* file glob for a redirection (1 match only) */
  57 #define EXP_CASE        0x10    /* keeps quotes around for CASE pattern */
  58 #define EXP_VARTILDE2   0x40    /* expand tildes after colons only */
  59 #define EXP_WORD        0x80    /* expand word in parameter expansion */
  60 #define EXP_QUOTED      0x100   /* expand word in double quotes */
  61 #define EXP_KEEPNUL     0x200   /* do not skip NUL characters */
  62 #define EXP_DISCARD     0x400   /* discard result of expansion */
  63
  64
  65 struct jmploc;
  66 union node;
  67
  68 void expandarg(union node *, struct arglist *, int);
  69 #define rmescapes(p) _rmescapes((p), 0)
  70 char *_rmescapes(char *, int);
  71 int casematch(union node *, char *);
  72 void recordregion(int, int, int);
  73 void removerecordregions(int);
  74 void ifsbreakup(char *, int, struct arglist *);
  75 void ifsfree(void);
  76 void restore_handler_expandarg(struct jmploc *savehandler, int err);
  77
  78 /* From arith.y */
  79 intmax_t arith(const char *);
  80 int expcmd(int , char **);
  81 #ifdef USE_LEX
  82 void arith_lex_reset(void);
  83 #else
  84 #define arith_lex_reset()
  85 #endif
  86 int yylex(void);