f0957ccae4
This is the gsoc-2011 project to clean up and backport multibyte support from other nvi forks in a form we can use. USE_WIDECHAR is on unless building for the rescue crunchgen. This should allow editing in the native locale encoding. USE_ICONV depends on make.conf having 'WITH_ICONV=YES' for now. This adds the ability to do things like edit a KOI8-R file while having $LANG set to (say) en_US.UTF-8. iconv is used to transcode the characters for display. Other points: * It uses gencat and catopen/etc instead of homegrown msg catalog stuff. * A lot of stuff has been trimmed out, eg: the perl and tcl bindings which we could never use in base anyway. * It uses ncursesw when in widechar mode. This could be interesting. GSoC info: http://www.google-melange.com/gsoc/proposal/review/google/gsoc2011/zy/1 Repo at: https://github.com/lichray/nvi2 Obtained from: Zhihao Yuan <lichray@gmail.com>
110 lines
3.1 KiB
C
110 lines
3.1 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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* $Id: tag.h,v 10.9 2012/07/06 16:38:36 zy Exp $
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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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SLIST_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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struct timespec mtim; /* 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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TAILQ_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_T *search; /* Search string. */
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size_t slen; /* Search string length. */
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CHAR_T *msg; /* Message string. */
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size_t mlen; /* Message string length. */
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CHAR_T buf[1]; /* Variable length buffer. */
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};
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struct _tagq { /* Tag queue. */
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TAILQ_ENTRY(_tagq) q; /* Linked list of tag queues. */
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/* This queue's tag list. */
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TAILQ_HEAD(_tagqh, _tag) tagq[1];
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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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