1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2008 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * Glenn Fowler 25 * AT&T Research 26 * 27 * xargs/tw command arg list interface definitions 28 */ 29 30 #ifndef _CMDARG_H 31 #define _CMDARG_H 32 33 #define CMD_CHECKED (1<<9) /* cmdopen() argv[0] ok */ 34 #define CMD_EMPTY (1<<0) /* run once, even if no args */ 35 #define CMD_EXACT (1<<1) /* last command must have argmax*/ 36 #define CMD_IGNORE (1<<2) /* ignore EXIT_QUIT exit */ 37 #define CMD_INSERT (1<<3) /* argpat for insertion */ 38 #define CMD_MINIMUM (1<<4) /* argmax is a minimum */ 39 #define CMD_NEWLINE (1<<5) /* echo separator is newline */ 40 #define CMD_POST (1<<6) /* argpat is post arg position */ 41 #define CMD_QUERY (1<<7) /* trace and query each command */ 42 #define CMD_SILENT (1<<10) /* no error messages */ 43 #define CMD_TRACE (1<<8) /* trace each command */ 44 45 #define CMD_USER (1<<12) 46 47 typedef struct /* cmd + args info */ 48 { 49 struct 50 { 51 size_t args; /* total args */ 52 size_t commands; /* total commands */ 53 } total; 54 55 int argcount; /* current arg count */ 56 int argmax; /* max # args */ 57 int echo; /* just an echo */ 58 int flags; /* CMD_* flags */ 59 int insertlen; /* strlen(insert) */ 60 int offset; /* post arg offset */ 61 62 char** argv; /* exec argv */ 63 char** firstarg; /* first argv file arg */ 64 char** insertarg; /* argv before insert */ 65 char** postarg; /* start of post arg list */ 66 char** nextarg; /* next argv file arg */ 67 char* nextstr; /* next string ends before here */ 68 char* laststr; /* last string ends before here */ 69 char* insert; /* replace with current arg */ 70 char buf[1]; /* argv and arg buffer */ 71 } Cmdarg_t; 72 73 #if _BLD_ast && defined(__EXPORT__) 74 #define extern __EXPORT__ 75 #endif 76 77 extern Cmdarg_t* cmdopen(char**, int, int, const char*, int); 78 extern int cmdflush(Cmdarg_t*); 79 extern int cmdarg(Cmdarg_t*, const char*, int); 80 extern int cmdclose(Cmdarg_t*); 81 82 #undef extern 83 84 #endif 85