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>
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1991, 1993, 1994, 1995, 1996
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* Keith Bostic. 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: cut.h,v 10.10 2012/02/11 15:52:33 zy Exp $
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*/
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typedef struct _texth TEXTH; /* TEXT list head structure. */
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TAILQ_HEAD(_texth, _text);
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/* Cut buffers. */
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struct _cb {
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SLIST_ENTRY(_cb) q; /* Linked list of cut buffers. */
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TEXTH textq[1]; /* Linked list of TEXT structures. */
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/* XXXX Needed ? Can non ascii-chars be cut buffer names ? */
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CHAR_T name; /* Cut buffer name. */
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size_t len; /* Total length of cut text. */
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#define CB_LMODE 0x01 /* Cut was in line mode. */
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u_int8_t flags;
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};
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/* Lines/blocks of text. */
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struct _text { /* Text: a linked list of lines. */
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TAILQ_ENTRY(_text) q; /* Linked list of text structures. */
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CHAR_T *lb; /* Line buffer. */
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size_t lb_len; /* Line buffer length. */
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size_t len; /* Line length. */
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/* These fields are used by the vi text input routine. */
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recno_t lno; /* 1-N: file line. */
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#define ENTIRE_LINE ((size_t)-1) /* cno: end of the line. */
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size_t cno; /* 0-N: file character in line. */
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size_t ai; /* 0-N: autoindent bytes. */
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size_t insert; /* 0-N: bytes to insert (push). */
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size_t offset; /* 0-N: initial, unerasable chars. */
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size_t owrite; /* 0-N: chars to overwrite. */
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size_t R_erase; /* 0-N: 'R' erase count. */
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size_t sv_cno; /* 0-N: Saved line cursor. */
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size_t sv_len; /* 0-N: Saved line length. */
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/*
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* These fields returns information from the vi text input routine.
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*
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* The termination condition. Note, this field is only valid if the
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* text input routine returns success.
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* TERM_BS: User backspaced over the prompt.
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* TERM_CEDIT: User entered <edit-char>.
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* TERM_CR: User entered <carriage-return>; no data.
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* TERM_ESC: User entered <escape>; no data.
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* TERM_OK: Data available.
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* TERM_SEARCH: Incremental search.
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*/
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enum {
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TERM_BS, TERM_CEDIT, TERM_CR, TERM_ESC, TERM_OK, TERM_SEARCH
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} term;
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};
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/*
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* Get named buffer 'name'.
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* Translate upper-case buffer names to lower-case buffer names.
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*/
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#define CBNAME(sp, cbp, nch) { \
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CHAR_T L__name; \
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L__name = isupper(nch) ? tolower(nch) : (nch); \
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SLIST_FOREACH(cbp, sp->gp->cutq, q) \
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if (cbp->name == L__name) \
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break; \
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}
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/* Flags to the cut() routine. */
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#define CUT_LINEMODE 0x01 /* Cut in line mode. */
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#define CUT_NUMOPT 0x02 /* Numeric buffer: optional. */
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#define CUT_NUMREQ 0x04 /* Numeric buffer: required. */
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