b8ba871bd9
files, curses, db, regex etc that we already have). The other glue will follow shortly. Obtained from: Keith Bostic <bostic@bostic.com>
108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
/*-
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1992, 1993, 1994, 1995, 1996
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* Keith Bostic. All rights reserved.
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* Copyright (c) 1994, 1996
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* Rob Mayoff. All rights reserved.
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*
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* See the LICENSE file for redistribution information.
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*
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* @(#)tag.h 10.5 (Berkeley) 5/15/96
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*/
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/*
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* Cscope connection information. One of these is maintained per cscope
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* connection, linked from the EX_PRIVATE structure.
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*/
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struct _csc {
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LIST_ENTRY(_csc) q; /* Linked list of cscope connections. */
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char *dname; /* Base directory of this cscope connection. */
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size_t dlen; /* Length of base directory. */
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pid_t pid; /* PID of the connected cscope process. */
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time_t mtime; /* Last modification time of cscope database. */
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FILE *from_fp; /* from cscope: FILE. */
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int from_fd; /* from cscope: file descriptor. */
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FILE *to_fp; /* to cscope: FILE. */
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int to_fd; /* to cscope: file descriptor. */
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char **paths; /* Array of search paths for this cscope. */
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char *pbuf; /* Search path buffer. */
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size_t pblen; /* Search path buffer length. */
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char buf[1]; /* Variable length buffer. */
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};
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/*
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* Tag file information. One of these is maintained per tag file, linked
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* from the EXPRIVATE structure.
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*/
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struct _tagf { /* Tag files. */
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TAILQ_ENTRY(_tagf) q; /* Linked list of tag files. */
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char *name; /* Tag file name. */
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int errnum; /* Errno. */
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#define TAGF_ERR 0x01 /* Error occurred. */
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#define TAGF_ERR_WARN 0x02 /* Error reported. */
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u_int8_t flags;
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};
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/*
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* Tags are structured internally as follows:
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*
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* +----+ +----+ +----+ +----+
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* | EP | -> | Q1 | <-- | T1 | <-- | T2 |
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* +----+ +----+ --> +----+ --> +----+
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* |
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* +----+ +----+
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* | Q2 | <-- | T1 |
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* +----+ --> +----+
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* |
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* +----+ +----+
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* | Q3 | <-- | T1 |
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* +----+ --> +----+
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*
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* Each Q is a TAGQ, or tag "query", which is the result of one tag or cscope
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* command. Each Q references one or more TAG's, or tagged file locations.
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*
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* tag: put a new Q at the head (^])
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* tagnext: T1 -> T2 inside Q (^N)
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* tagprev: T2 -> T1 inside Q (^P)
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* tagpop: discard Q (^T)
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* tagtop: discard all Q
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*/
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struct _tag { /* Tag list. */
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CIRCLEQ_ENTRY(_tag) q; /* Linked list of tags. */
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/* Tag pop/return information. */
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FREF *frp; /* Saved file. */
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recno_t lno; /* Saved line number. */
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size_t cno; /* Saved column number. */
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char *fname; /* Filename. */
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size_t fnlen; /* Filename length. */
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recno_t slno; /* Search line number. */
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char *search; /* Search string. */
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size_t slen; /* Search string length. */
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char buf[1]; /* Variable length buffer. */
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};
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struct _tagq { /* Tag queue. */
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CIRCLEQ_ENTRY(_tagq) q; /* Linked list of tag queues. */
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/* This queue's tag list. */
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CIRCLEQ_HEAD(_tagqh, _tag) tagq;
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TAG *current; /* Current TAG within the queue. */
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char *tag; /* Tag string. */
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size_t tlen; /* Tag string length. */
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#define TAG_CSCOPE 0x01 /* Cscope tag. */
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u_int8_t flags;
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char buf[1]; /* Variable length buffer. */
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};
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