/* $NetBSD: sort.h,v 1.32 2010/06/05 17:44:51 dholland Exp $ */ /*- * Copyright (c) 2000-2003 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Ben Harris and Jaromir Dolecek. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /*- * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Peter McIlroy. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)sort.h 8.1 (Berkeley) 6/6/93 */ #include #include #include #include #include #include #include #include #include #define NBINS 256 /* values for masks, weights, and other flags. */ /* R and F get used to index weight_tables[] */ #define R 1 /* Field is reversed */ #define F 2 /* weight lower and upper case the same */ #define I 4 /* mask out non-printable characters */ #define D 8 /* sort alphanumeric characters only */ #define N 16 /* Field is a number */ #define BI 32 /* ignore blanks in icol */ #define BT 64 /* ignore blanks in tcol */ /* masks for delimiters: blanks, fields, and termination. */ #define BLANK 1 /* ' ', '\t'; '\n' if -R is invoked */ #define FLD_D 2 /* ' ', '\t' default; from -t otherwise */ #define REC_D_F 4 /* '\n' default; from -R otherwise */ #define min(a, b) ((a) < (b) ? (a) : (b)) #define max(a, b) ((a) > (b) ? (a) : (b)) #define FCLOSE(file) { \ if (EOF == fclose(file)) \ err(2, "%p", file); \ } #define EWRITE(ptr, size, n, f) { \ if (!fwrite(ptr, size, n, f)) \ err(2, NULL); \ } /* Records are limited to MAXBUFSIZE (8MB) and less if you want to sort * in a sane way. * Anyone who wants to sort data records longer than 2GB definitely needs a * different program! */ typedef unsigned int length_t; /* A record is a key/line pair starting at rec.data. It has a total length * and an offset to the start of the line half of the pair. */ typedef struct recheader { length_t length; /* total length of key and line */ length_t offset; /* to line */ int keylen; /* length of key */ u_char data[]; /* key then line */ } RECHEADER; /* This is the column as seen by struct field. It is used by enterfield. * They are matched with corresponding coldescs during initialization. */ struct column { struct coldesc *p; int num; int indent; }; /* a coldesc has a number and pointers to the beginning and end of the * corresponding column in the current line. This is determined in enterkey. */ typedef struct coldesc { u_char *start; u_char *end; int num; } COLDESC; /* A field has an initial and final column; an omitted final column * implies the end of the line. Flags regulate omission of blanks and * numerical sorts; mask determines which characters are ignored (from -i, -d); * weights determines the sort weights of a character (from -f, -r). * * The first field contain the global flags etc. * The list terminates when icol = 0. */ struct field { struct column icol; struct column tcol; u_int flags; u_char *mask; u_char *weights; }; struct filelist { const char * const * names; }; typedef int (*get_func_t)(FILE *, RECHEADER *, u_char *, struct field *); typedef void (*put_func_t)(const RECHEADER *, FILE *); extern u_char ascii[NBINS], Rascii[NBINS], Ftable[NBINS], RFtable[NBINS]; extern u_char *const weight_tables[4]; /* ascii, Rascii, Ftable, RFtable */ extern u_char d_mask[NBINS]; extern int SINGL_FLD, SEP_FLAG, UNIQUE, REVERSE; extern int posix_sort; extern int REC_D; extern const char *tmpdir; extern struct coldesc *clist; extern int ncols; #define DEBUG(ch) (debug_flags & (1 << ((ch) & 31))) extern unsigned int debug_flags; RECHEADER *allocrec(RECHEADER *, size_t); void append(RECHEADER **, int, FILE *, void (*)(const RECHEADER *, FILE *)); void concat(FILE *, FILE *); length_t enterkey(RECHEADER *, const u_char *, u_char *, size_t, struct field *); void fixit(int *, char **, const char *); void fldreset(struct field *); FILE *ftmp(void); void fmerge(struct filelist *, int, FILE *, struct field *); void save_for_merge(FILE *, get_func_t, struct field *); void merge_sort(FILE *, put_func_t, struct field *); void fsort(struct filelist *, int, FILE *, struct field *); int geteasy(FILE *, RECHEADER *, u_char *, struct field *); int makekey(FILE *, RECHEADER *, u_char *, struct field *); int makeline(FILE *, RECHEADER *, u_char *, struct field *); void makeline_copydown(RECHEADER *); int optval(int, int); void order(struct filelist *, struct field *); void putline(const RECHEADER *, FILE *); void putrec(const RECHEADER *, FILE *); void putkeydump(const RECHEADER *, FILE *); void rd_append(int, int, int, FILE *, u_char *, u_char *); void radix_sort(RECHEADER **, RECHEADER **, int); int setfield(const char *, struct field *, int); void settables(void);