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zsh/Src/Zle/comp.h

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/*
* comp.h - header file for completion
*
* This file is part of zsh, the Z shell.
*
* Copyright (c) 1992-1997 Paul Falstad
* All rights reserved.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and to distribute modified versions of this software for any
* purpose, provided that the above copyright notice and the following
* two paragraphs appear in all copies of this software.
*
* In no event shall Paul Falstad or the Zsh Development Group be liable
* to any party for direct, indirect, special, incidental, or consequential
* damages arising out of the use of this software and its documentation,
* even if Paul Falstad and the Zsh Development Group have been advised of
* the possibility of such damage.
*
* Paul Falstad and the Zsh Development Group specifically disclaim any
* warranties, including, but not limited to, the implied warranties of
* merchantability and fitness for a particular purpose. The software
* provided hereunder is on an "as is" basis, and Paul Falstad and the
* Zsh Development Group have no obligation to provide maintenance,
* support, updates, enhancements, or modifications.
*
*/
typedef struct cmatcher *Cmatcher;
typedef struct cmlist *Cmlist;
typedef struct cpattern *Cpattern;
typedef struct menuinfo *Menuinfo;
typedef struct cexpl *Cexpl;
typedef struct cmgroup *Cmgroup;
typedef struct cmatch *Cmatch;
/* This is for explantion strings. */
struct cexpl {
int always; /* display even without matches */
char *str; /* the string */
int count; /* the number of matches */
int fcount; /* number of matches with fignore ignored */
};
/* This describes a group of matches. */
struct cmgroup {
char *name; /* the name of this group */
Cmgroup prev; /* previous on the list */
Cmgroup next; /* next one in list */
int flags; /* see CGF_* below */
int mcount; /* number of matches */
Cmatch *matches; /* the matches */
int lcount; /* number of things to list here */
int llcount; /* number of line-displays */
char **ylist; /* things to list */
int ecount; /* number of explanation string */
Cexpl *expls; /* explanation strings */
int ccount; /* number of compctls used */
LinkList lexpls; /* list of explanation string while building */
LinkList lmatches; /* list of matches */
LinkList lfmatches; /* list of matches without fignore */
LinkList lallccs; /* list of used compctls */
int num; /* number of this group */
int nbrbeg; /* number of opened braces */
int nbrend; /* number of closed braces */
int new; /* new matches since last permalloc() */
/* The following is collected/used during listing. */
int dcount; /* number of matches to list in columns */
int cols; /* number of columns */
int lins; /* number of lines */
int width; /* column width */
int *widths; /* column widths for listpacked */
int totl; /* total length */
int shortest; /* length of shortest match */
Cmgroup perm; /* perm. alloced version of this group */
};
#define CGF_NOSORT 1 /* don't sort this group */
#define CGF_LINES 2 /* these are to be printed on different lines */
#define CGF_HASDL 4 /* has display strings printed on separate lines */
#define CGF_UNIQALL 8 /* remove all duplicates */
#define CGF_UNIQCON 16 /* remove consecutive duplicates */
#define CGF_PACKED 32 /* LIST_PACKED for this group */
#define CGF_ROWS 64 /* LIST_ROWS_FIRST for this group */
#define CGF_FILES 128 /* contains file names */
/* This is the struct used to hold matches. */
struct cmatch {
char *str; /* the match itself */
char *ipre; /* ignored prefix, has to be re-inserted */
char *ripre; /* ignored prefix, unquoted */
char *isuf; /* ignored suffix */
char *ppre; /* the path prefix */
char *psuf; /* the path suffix */
char *prpre; /* path prefix for opendir */
char *pre; /* prefix string from -P */
char *suf; /* suffix string from -S */
char *disp; /* string to display (compadd -d) */
char *autoq; /* closing quote to add automatically */
int flags; /* see CMF_* below */
int *brpl; /* places where to put the brace prefixes */
int *brsl; /* ...and the suffixes */
char *rems; /* when to remove the suffix */
char *remf; /* shell function to call for suffix-removal */
int qipl; /* length of quote-prefix */
int qisl; /* length of quote-suffix */
int rnum; /* group relative number */
int gnum; /* global number */
};
#define CMF_FILE (1<< 0) /* this is a file */
#define CMF_REMOVE (1<< 1) /* remove the suffix */
#define CMF_ISPAR (1<< 2) /* is paramter expansion */
#define CMF_PARBR (1<< 3) /* paramter expansion with a brace */
#define CMF_PARNEST (1<< 4) /* nested paramter expansion */
#define CMF_NOLIST (1<< 5) /* should not be listed */
#define CMF_DISPLINE (1<< 6) /* display strings one per line */
#define CMF_HIDE (1<< 7) /* temporarily hide this one */
#define CMF_NOSPACE (1<< 8) /* don't add a space */
#define CMF_PACKED (1<< 9) /* prefer LIST_PACKED */
#define CMF_ROWS (1<<10) /* prefer LIST_ROWS_FIRST */
#define CMF_MULT (1<<11) /* string appears more than once */
#define CMF_FMULT (1<<12) /* first of multiple equal strings */
#define CMF_ALL (1<<13) /* a match representing all other matches */
#define CMF_DUMMY (1<<14) /* unselectable dummy match */
/* Stuff for completion matcher control. */
struct cmlist {
Cmlist next; /* next one in the list of global matchers */
Cmatcher matcher; /* the matcher definition */
char *str; /* the string for it */
};
struct cmatcher {
int refc; /* reference counter */
Cmatcher next; /* next matcher */
int flags; /* see CMF_* below */
Cpattern line; /* what matches on the line */
int llen; /* length of line pattern */
Cpattern word; /* what matches in the word */
int wlen; /* length of word pattern */
Cpattern left; /* left anchor */
int lalen; /* length of left anchor */
Cpattern right; /* right anchor */
int ralen; /* length of right anchor */
};
#define CMF_LINE 1
#define CMF_LEFT 2
#define CMF_RIGHT 4
#define CMF_INTER 8
struct cpattern {
Cpattern next; /* next sub-pattern */
unsigned char tab[256]; /* table of matched characters */
int equiv; /* if this is a {...} class */
};
/* This is a special return value for parse_cmatcher(), *
* signalling an error. */
#define pcm_err ((Cmatcher) 1)
/* Information about what to put on the line as the unambiguous string.
* The code always keeps lists of these structs up to date while
* matches are added (in the aminfo structs below).
* The lists have two levels: in the first one we have one struct per
* word-part, where parts are separated by the anchors of `*' patterns.
* These structs have pointers (in the prefix and suffix fields) to
* lists of cline structs describing the strings before or after the
* the anchor. */
typedef struct cline *Cline;
typedef struct clsub Clsub;
struct cline {
Cline next;
int flags;
char *line;
int llen;
char *word;
int wlen;
char *orig;
int olen;
int slen;
Cline prefix, suffix;
int min, max;
};
#define CLF_MISS 1
#define CLF_DIFF 2
#define CLF_SUF 4
#define CLF_MID 8
#define CLF_NEW 16
#define CLF_LINE 32
#define CLF_JOIN 64
#define CLF_MATCHED 128
#define CLF_SKIP 256
/* Information for ambiguous completions. One for fignore ignored and *
* one for normal completion. */
typedef struct aminfo *Aminfo;
struct aminfo {
Cmatch firstm; /* the first match */
int exact; /* if there was an exact match */
Cmatch exactm; /* the exact match (if any) */
int count; /* number of matches */
Cline line; /* unambiguous line string */
};
/* Information about menucompletion stuff. */
struct menuinfo {
Cmgroup group; /* position in the group list */
Cmatch *cur; /* match currently inserted */
int pos; /* begin on line */
int len; /* length of inserted string */
int end; /* end on the line */
int we; /* non-zero if the cursor was at the end */
int insc; /* length of suffix inserted */
int asked; /* we asked if the list should be shown */
char *prebr; /* prefix before a brace, if any */
char *postbr; /* suffix after a brace */
};
/* Flags for compadd and addmatches(). */
#define CAF_QUOTE 1
#define CAF_NOSORT 2
#define CAF_MATCH 4
#define CAF_UNIQCON 8
#define CAF_UNIQALL 16
#define CAF_ARRAYS 32
#define CAF_KEYS 64
#define CAF_ALL 128
/* Data for compadd and addmatches() */
typedef struct cadata *Cadata;
struct cadata {
char *ipre; /* ignored prefix (-i) */
char *isuf; /* ignored suffix (-I) */
char *ppre; /* `path' prefix (-p) */
char *psuf; /* `path' suffix (-s) */
char *prpre; /* expanded `path' prefix (-W) */
char *pre; /* prefix to insert (-P) */
char *suf; /* suffix to insert (-S) */
char *group; /* name of the group (-[JV]) */
char *rems; /* remove suffix on chars... (-r) */
char *remf; /* function to remove suffix (-R) */
char *ign; /* ignored suffixes (-F) */
int flags; /* CMF_* flags (-[fqn]) */
int aflags; /* CAF_* flags (-[QUa]) */
Cmatcher match; /* match spec (parsed from -M) */
char *exp; /* explanation (-X) */
char *apar; /* array to store matches in (-A) */
char *opar; /* array to store originals in (-O) */
char *dpar; /* array to delete non-matches in (-D) */
char *disp; /* array with display lists (-d) */
char *mesg; /* message to show unconditionally (-x) */
int dummies; /* add that many dummy matches */
};
/* List data. */
typedef struct cldata *Cldata;
struct cldata {
int columns; /* screen width */
int lines; /* screen height */
int menuacc; /* value of global menuacc */
int valid; /* no need to calculate anew */
int nlist; /* number of matches to list */
int nlines; /* number of lines needed */
int hidden; /* != 0 if there are hidden matches */
int onlyexpl; /* != 0 if only explanations to print */
int showall; /* != 0 if hidden matches should be shown */
};
typedef void (*CLPrintFunc)(Cmgroup, Cmatch *, int, int, int, int,
char *, struct stat *);
/* Flags for fromcomp. */
#define FC_LINE 1
#define FC_INWORD 2
/* Flags for special parameters. */
#define CPN_WORDS 0
#define CP_WORDS (1 << CPN_WORDS)
#define CPN_REDIRS 1
#define CP_REDIRS (1 << CPN_REDIRS)
#define CPN_CURRENT 2
#define CP_CURRENT (1 << CPN_CURRENT)
#define CPN_PREFIX 3
#define CP_PREFIX (1 << CPN_PREFIX)
#define CPN_SUFFIX 4
#define CP_SUFFIX (1 << CPN_SUFFIX)
#define CPN_IPREFIX 5
#define CP_IPREFIX (1 << CPN_IPREFIX)
#define CPN_ISUFFIX 6
#define CP_ISUFFIX (1 << CPN_ISUFFIX)
#define CPN_QIPREFIX 7
#define CP_QIPREFIX (1 << CPN_QIPREFIX)
#define CPN_QISUFFIX 8
#define CP_QISUFFIX (1 << CPN_QISUFFIX)
#define CPN_COMPSTATE 9
#define CP_COMPSTATE (1 << CPN_COMPSTATE)
#define CP_REALPARAMS 10
#define CP_ALLREALS ((unsigned int) 0x3ff)
#define CPN_NMATCHES 0
#define CP_NMATCHES (1 << CPN_NMATCHES)
#define CPN_CONTEXT 1
#define CP_CONTEXT (1 << CPN_CONTEXT)
#define CPN_PARAMETER 2
#define CP_PARAMETER (1 << CPN_PARAMETER)
#define CPN_REDIRECT 3
#define CP_REDIRECT (1 << CPN_REDIRECT)
#define CPN_QUOTE 4
#define CP_QUOTE (1 << CPN_QUOTE)
#define CPN_QUOTING 5
#define CP_QUOTING (1 << CPN_QUOTING)
#define CPN_RESTORE 6
#define CP_RESTORE (1 << CPN_RESTORE)
#define CPN_LIST 7
#define CP_LIST (1 << CPN_LIST)
#define CPN_INSERT 8
#define CP_INSERT (1 << CPN_INSERT)
#define CPN_EXACT 9
#define CP_EXACT (1 << CPN_EXACT)
#define CPN_EXACTSTR 10
#define CP_EXACTSTR (1 << CPN_EXACTSTR)
#define CPN_PATMATCH 11
#define CP_PATMATCH (1 << CPN_PATMATCH)
#define CPN_PATINSERT 12
#define CP_PATINSERT (1 << CPN_PATINSERT)
#define CPN_UNAMBIG 13
#define CP_UNAMBIG (1 << CPN_UNAMBIG)
#define CPN_UNAMBIGC 14
#define CP_UNAMBIGC (1 << CPN_UNAMBIGC)
#define CPN_UNAMBIGP 15
#define CP_UNAMBIGP (1 << CPN_UNAMBIGP)
#define CPN_INSERTP 16
#define CP_INSERTP (1 << CPN_INSERTP)
#define CPN_LISTMAX 17
#define CP_LISTMAX (1 << CPN_LISTMAX)
#define CPN_LASTPROMPT 18
#define CP_LASTPROMPT (1 << CPN_LASTPROMPT)
#define CPN_TOEND 19
#define CP_TOEND (1 << CPN_TOEND)
#define CPN_OLDLIST 20
#define CP_OLDLIST (1 << CPN_OLDLIST)
#define CPN_OLDINS 21
#define CP_OLDINS (1 << CPN_OLDINS)
#define CPN_VARED 22
#define CP_VARED (1 << CPN_VARED)
#define CPN_LISTLINES 23
#define CP_LISTLINES (1 << CPN_LISTLINES)
#define CPN_QUOTES 24
#define CP_QUOTES (1 << CPN_QUOTES)
#define CPN_IGNORED 25
#define CP_IGNORED (1 << CPN_IGNORED)
#define CP_KEYPARAMS 26
#define CP_ALLKEYS ((unsigned int) 0x3ffffff)
/* Hooks. */
#define INSERTMATCHHOOK (comphooks + 0)
#define MENUSTARTHOOK (comphooks + 1)
#define COMPCTLMAKEHOOK (comphooks + 2)
#define COMPCTLCLEANUPHOOK (comphooks + 3)
#define COMPLISTMATCHESHOOK (comphooks + 4)
/* compctl hook data struct */
struct ccmakedat {
char *str;
int incmd;
int lst;
};
/* Data given to offered hooks. */
typedef struct chdata *Chdata;
struct chdata {
Cmgroup matches; /* the matches generated */
int num; /* the number of matches */
int nmesg; /* the number of messages */
Cmatch cur; /* current match or NULL */
};
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