/* vi.h */ /* Author: * Steve Kirkendall * 14407 SW Teal Blvd. #C * Beaverton, OR 97005 * kirkenda@cs.pdx.edu */ #define VERSION "ELVIS 1.5, by Steve Kirkendall (23 March 1992)" #define COPYING "This version of ELVIS is freely redistributable." #include extern int errno; #if TOS && !defined(__GNUC__) #define ENOENT (-AEFILNF) #endif #if TOS || VMS # include # define O_RDONLY 0 # define O_WRONLY 1 # define O_RDWR 2 # ifdef __GNUC__ # define S_IJDIR S_IFDIR # endif #else # if OSK # include # define O_RDONLY S_IREAD # define O_WRONLY S_IWRITE # define O_RDWR (S_IREAD | S_IWRITE) # define ENOENT E_PNNF # define sprintf Sprintf # else # include # if COHERENT # include # else # include # endif # endif #endif #ifndef O_BINARY # define O_BINARY 0 #endif #include "curses.h" #include /*------------------------------------------------------------------------*/ /* Miscellaneous constants. */ #define INFINITY 2000000001L /* a very large integer */ #define LONGKEY 10 /* longest possible raw :map key */ #ifndef MAXRCLEN # define MAXRCLEN 1000 /* longest possible :@ command */ #endif /*------------------------------------------------------------------------*/ /* These describe how temporary files are divided into blocks */ #define MAXBLKS (BLKSIZE / sizeof(unsigned short)) typedef union { char c[BLKSIZE]; /* for text blocks */ unsigned short n[MAXBLKS]; /* for the header block */ } BLK; /*------------------------------------------------------------------------*/ /* These are used manipulate BLK buffers. */ extern BLK hdr; /* buffer for the header block */ extern BLK *blkget(); /* given index into hdr.c[], reads block */ extern BLK *blkadd(); /* inserts a new block into hdr.c[] */ /*------------------------------------------------------------------------*/ /* These are used to keep track of various flags */ extern struct _viflags { short file; /* file flags */ } viflags; /* file flags */ #define NEWFILE 0x0001 /* the file was just created */ #define READONLY 0x0002 /* the file is read-only */ #define HADNUL 0x0004 /* the file contained NUL characters */ #define MODIFIED 0x0008 /* the file has been modified, but not saved */ #define NOFILE 0x0010 /* no name is known for the current text */ #define ADDEDNL 0x0020 /* newlines were added to the file */ #define HADBS 0x0040 /* backspace chars were lost from the file */ #define UNDOABLE 0x0080 /* file has been modified */ #define NOTEDITED 0x0100 /* the :file command has been used */ /* macros used to set/clear/test flags */ #define setflag(x,y) viflags.x |= y #define clrflag(x,y) viflags.x &= ~y #define tstflag(x,y) (viflags.x & y) #define initflags() viflags.file = 0; /* The options */ extern char o_autoindent[1]; extern char o_autoprint[1]; extern char o_autotab[1]; extern char o_autowrite[1]; extern char o_columns[3]; extern char o_directory[30]; extern char o_edcompatible[1]; extern char o_equalprg[80]; extern char o_errorbells[1]; extern char o_exrefresh[1]; extern char o_ignorecase[1]; extern char o_keytime[3]; extern char o_keywordprg[80]; extern char o_lines[3]; extern char o_list[1]; extern char o_number[1]; extern char o_readonly[1]; extern char o_remap[1]; extern char o_report[3]; extern char o_scroll[3]; extern char o_shell[60]; extern char o_shiftwidth[3]; extern char o_sidescroll[3]; extern char o_sync[1]; extern char o_tabstop[3]; extern char o_term[30]; extern char o_flash[1]; extern char o_warn[1]; extern char o_wrapscan[1]; #ifndef CRUNCH extern char o_beautify[1]; extern char o_exrc[1]; extern char o_mesg[1]; extern char o_more[1]; extern char o_novice[1]; extern char o_prompt[1]; extern char o_taglength[3]; extern char o_terse[1]; extern char o_window[3]; extern char o_wrapmargin[3]; extern char o_writeany[1]; #endif #ifndef NO_ERRLIST extern char o_cc[30]; extern char o_make[30]; #endif #ifndef NO_CHARATTR extern char o_charattr[1]; #endif #ifndef NO_DIGRAPH extern char o_digraph[1]; extern char o_flipcase[80]; #endif #ifndef NO_SENTENCE extern char o_hideformat[1]; #endif #ifndef NO_EXTENSIONS extern char o_inputmode[1]; extern char o_ruler[1]; #endif #ifndef NO_MAGIC extern char o_magic[1]; #endif #ifndef NO_MODELINES extern char o_modelines[1]; #endif #ifndef NO_SENTENCE extern char o_paragraphs[30]; extern char o_sections[30]; #endif #if MSDOS extern char o_pcbios[1]; #endif #ifndef NO_SHOWMATCH extern char o_showmatch[1]; #endif #ifndef NO_SHOWMODE extern char o_smd[1]; #endif /*------------------------------------------------------------------------*/ /* These help support the single-line multi-change "undo" -- shift-U */ extern char U_text[BLKSIZE]; extern long U_line; /*------------------------------------------------------------------------*/ /* These are used to refer to places in the text */ typedef long MARK; #define markline(x) (long)((x) / BLKSIZE) #define markidx(x) (int)((x) & (BLKSIZE - 1)) #define MARK_UNSET ((MARK)0) #define MARK_FIRST ((MARK)BLKSIZE) #define MARK_LAST ((MARK)(nlines * BLKSIZE)) #define MARK_AT_LINE(x) ((MARK)(x) * BLKSIZE) #define NMARKS 29 extern MARK mark[NMARKS]; /* marks a-z, plus mark ' and two temps */ extern MARK cursor; /* mark where line is */ /*------------------------------------------------------------------------*/ /* These are used to keep track of the current & previous files. */ extern long origtime; /* modification date&time of the current file */ extern char origname[256]; /* name of the current file */ extern char prevorig[256]; /* name of the preceding file */ extern long prevline; /* line number from preceding file */ /*------------------------------------------------------------------------*/ /* misc housekeeping variables & functions */ extern int tmpfd; /* fd used to access the tmp file */ extern int tmpnum; /* counter used to generate unique filenames */ extern long lnum[MAXBLKS]; /* last line# of each block */ extern long nlines; /* number of lines in the file */ extern char args[BLKSIZE]; /* file names given on the command line */ extern int argno; /* the current element of args[] */ extern int nargs; /* number of filenames in args */ extern long changes; /* counts changes, to prohibit short-cuts */ extern int significant; /* boolean: was a *REAL* change made? */ extern BLK tmpblk; /* a block used to accumulate changes */ extern long topline; /* file line number of top line */ extern int leftcol; /* column number of left col */ #define botline (topline + LINES - 2) #define rightcol (leftcol + COLS - (*o_number ? 9 : 1)) extern int physcol; /* physical column number that cursor is on */ extern int physrow; /* physical row number that cursor is on */ extern int exwrote; /* used to detect verbose ex commands */ extern int doingdot; /* boolean: are we doing the "." command? */ extern int doingglobal; /* boolean: are doing a ":g" command? */ extern long rptlines; /* number of lines affected by a command */ extern char *rptlabel; /* description of how lines were affected */ extern char *fetchline(); /* read a given line from tmp file */ extern char *parseptrn(); /* isolate a regexp in a line */ extern MARK paste(); /* paste from cut buffer to a given point */ extern char *wildcard(); /* expand wildcards in filenames */ extern MARK input(); /* inserts characters from keyboard */ extern char *linespec(); /* finds the end of a /regexp/ string */ #define ctrl(ch) ((ch)&037) #ifndef NO_RECYCLE extern long allocate(); /* allocate a free block of the tmp file */ #endif extern int trapint(); /* trap handler for SIGINT */ extern int deathtrap(); /* trap handler for deadly signals */ extern void blkdirty(); /* marks a block as being "dirty" */ extern void blkflush(); /* writes a single dirty block to the disk */ extern void blksync(); /* forces all "dirty" blocks to disk */ extern void blkinit(); /* resets the block cache to "empty" state */ extern void beep(); /* rings the terminal's bell */ extern void exrefresh(); /* writes text to the screen */ extern void msg(); /* writes a printf-style message to the screen */ extern void endmsgs(); /* if "manymsgs" is set, then scroll up 1 line */ extern void garbage(); /* reclaims any garbage blocks */ extern void redraw(); /* updates the screen after a change */ extern void resume_curses();/* puts the terminal in "cbreak" mode */ extern void beforedo(); /* saves current revision before a new change */ extern void afterdo(); /* marks end of a beforedo() change */ extern void abortdo(); /* like "afterdo()" followed by "undo()" */ extern int undo(); /* restores file to previous undo() */ extern void dumpkey(); /* lists key mappings to the screen */ extern void mapkey(); /* defines a new key mapping */ extern void savekeys(); /* lists key mappings to a file */ extern void redrawrange(); /* records clues from modify.c */ extern void cut(); /* saves text in a cut buffer */ extern void delete(); /* deletes text */ extern void add(); /* adds text */ extern void change(); /* deletes text, and then adds other text */ extern void cutswitch(); /* updates cut buffers when we switch files */ extern void do_abbr(); /* defines or lists abbreviations */ extern void do_digraph(); /* defines or lists digraphs */ extern void exstring(); /* execute a string as EX commands */ extern void dumpopts(); extern void setopts(); extern void saveopts(); extern void savedigs(); extern void saveabbr(); extern void savecolor(); extern void cutname(); extern void cutname(); extern void initopts(); extern void cutend(); #ifndef CRUNCH extern int wset; /* boolean: has the "window" size been set? */ #endif /*------------------------------------------------------------------------*/ /* macros that are used as control structures */ #define BeforeAfter(before, after) for((before),bavar=1;bavar;(after),bavar=0) #define ChangeText BeforeAfter(beforedo(FALSE),afterdo()) extern int bavar; /* used only in BeforeAfter macros */ /*------------------------------------------------------------------------*/ /* These are the movement commands. Each accepts a mark for the starting */ /* location & number and returns a mark for the destination. */ extern MARK m_updnto(); /* k j G */ extern MARK m_right(); /* h */ extern MARK m_left(); /* l */ extern MARK m_tocol(); /* | */ extern MARK m_front(); /* ^ */ extern MARK m_rear(); /* $ */ extern MARK m_fword(); /* w */ extern MARK m_bword(); /* b */ extern MARK m_eword(); /* e */ extern MARK m_paragraph(); /* { } [[ ]] */ extern MARK m_match(); /* % */ #ifndef NO_SENTENCE extern MARK m_sentence(); /* ( ) */ #endif extern MARK m_tomark(); /* 'm */ #ifndef NO_EXTENSIONS extern MARK m_wsrch(); /* ^A */ #endif extern MARK m_nsrch(); /* n */ extern MARK m_Nsrch(); /* N */ extern MARK m_fsrch(); /* /regexp */ extern MARK m_bsrch(); /* ?regexp */ #ifndef NO_CHARSEARCH extern MARK m__ch(); /* ; , */ extern MARK m_fch(); /* f */ extern MARK m_tch(); /* t */ extern MARK m_Fch(); /* F */ extern MARK m_Tch(); /* T */ #endif extern MARK m_row(); /* H L M */ extern MARK m_z(); /* z */ extern MARK m_scroll(); /* ^B ^F ^E ^Y ^U ^D */ /* Some stuff that is used by movement functions... */ extern MARK adjmove(); /* a helper fn, used by move fns */ /* This macro is used to set the default value of cnt */ #define DEFAULT(val) if (cnt < 1) cnt = (val) /* These are used to minimize calls to fetchline() */ extern int plen; /* length of the line */ extern long pline; /* line number that len refers to */ extern long pchgs; /* "changes" level that len refers to */ extern char *ptext; /* text of previous line, if valid */ extern void pfetch(); extern char digraph(); /* This is used to build a MARK that corresponds to a specific point in the * line that was most recently pfetch'ed. */ #define buildmark(text) (MARK)(BLKSIZE * pline + (int)((text) - ptext)) /*------------------------------------------------------------------------*/ /* These are used to handle EX commands. */ #define CMD_NULL 0 /* NOT A VALID COMMAND */ #define CMD_ABBR 1 /* "define an abbreviation" */ #define CMD_ARGS 2 /* "show me the args" */ #define CMD_APPEND 3 /* "insert lines after this line" */ #define CMD_AT 4 /* "execute a cut buffer's contents via EX" */ #define CMD_BANG 5 /* "run a single shell command" */ #define CMD_CC 6 /* "run `cc` and then do CMD_ERRLIST" */ #define CMD_CD 7 /* "change directories" */ #define CMD_CHANGE 8 /* "change some lines" */ #define CMD_COLOR 9 /* "change the default colors" */ #define CMD_COPY 10 /* "copy the selected text to a given place" */ #define CMD_DELETE 11 /* "delete the selected text" */ #define CMD_DIGRAPH 12 /* "add a digraph, or display them all" */ #define CMD_EDIT 13 /* "switch to a different file" */ #define CMD_EQUAL 14 /* "display a line number" */ #define CMD_ERRLIST 15 /* "locate the next error in a list" */ #define CMD_FILE 16 /* "show the file's status" */ #define CMD_GLOBAL 17 /* "globally search & do a command" */ #define CMD_INSERT 18 /* "insert lines before the current line" */ #define CMD_JOIN 19 /* "join the selected line & the one after" */ #define CMD_LIST 20 /* "print lines, making control chars visible" */ #define CMD_MAKE 21 /* "run `make` and then do CMD_ERRLIST" */ #define CMD_MAP 22 /* "adjust the keyboard map" */ #define CMD_MARK 23 /* "mark this line" */ #define CMD_MKEXRC 24 /* "make a .exrc file" */ #define CMD_MOVE 25 /* "move the selected text to a given place" */ #define CMD_NEXT 26 /* "switch to next file in args" */ #define CMD_NUMBER 27 /* "print lines from the file w/ line numbers" */ #define CMD_PRESERVE 28 /* "act as though vi crashed" */ #define CMD_PREVIOUS 29 /* "switch to the previous file in args" */ #define CMD_PRINT 30 /* "print the selected text" */ #define CMD_PUT 31 /* "insert any cut lines before this line" */ #define CMD_QUIT 32 /* "quit without writing the file" */ #define CMD_READ 33 /* "append the given file after this line */ #define CMD_RECOVER 34 /* "recover file after vi crashes" - USE -r FLAG */ #define CMD_REWIND 35 /* "rewind to first file" */ #define CMD_SET 36 /* "set a variable's value" */ #define CMD_SHELL 37 /* "run some lines through a command" */ #define CMD_SHIFTL 38 /* "shift lines left" */ #define CMD_SHIFTR 39 /* "shift lines right" */ #define CMD_SOURCE 40 /* "interpret a file's contents as ex commands" */ #define CMD_STOP 41 /* same as CMD_SUSPEND */ #define CMD_SUBAGAIN 42 /* "repeat the previous substitution" */ #define CMD_SUBSTITUTE 43 /* "substitute text in this line" */ #define CMD_SUSPEND 44 /* "suspend the vi session" */ #define CMD_TR 45 /* "transliterate chars in the selected lines" */ #define CMD_TAG 46 /* "go to a particular tag" */ #define CMD_UNABBR 47 /* "remove an abbreviation definition" */ #define CMD_UNDO 48 /* "undo the previous command" */ #define CMD_UNMAP 49 /* "remove a key sequence map */ #define CMD_VERSION 50 /* "describe which version this is" */ #define CMD_VGLOBAL 51 /* "apply a cmd to lines NOT containing an RE" */ #define CMD_VISUAL 52 /* "go into visual mode" */ #define CMD_WQUIT 53 /* "write this file out (any case) & quit" */ #define CMD_WRITE 54 /* "write the selected(?) text to a given file" */ #define CMD_XIT 55 /* "write this file out (if modified) & quit" */ #define CMD_YANK 56 /* "copy the selected text into the cut buffer" */ #ifdef DEBUG # define CMD_DEBUG 57 /* access to internal data structures */ # define CMD_VALIDATE 58 /* check for internal consistency */ #endif typedef int CMD; extern void ex(); extern void vi(); extern void doexcmd(); extern void cmd_append(); extern void cmd_args(); #ifndef NO_AT extern void cmd_at(); #endif extern void cmd_cd(); #ifndef NO_COLOR extern void cmd_color(); #endif extern void cmd_delete(); #ifndef NO_DIGRAPH extern void cmd_digraph(); #endif extern void cmd_edit(); #ifndef NO_ERRLIST extern void cmd_errlist(); #endif extern void cmd_file(); extern void cmd_global(); extern void cmd_join(); extern void cmd_mark(); #ifndef NO_ERRLIST extern void cmd_make(); #endif extern void cmd_map(); #ifndef NO_MKEXRC extern void cmd_mkexrc(); #endif extern void cmd_next(); extern void cmd_print(); extern void cmd_put(); extern void cmd_read(); extern void cmd_set(); extern void cmd_shell(); extern void cmd_shift(); extern void cmd_source(); extern void cmd_substitute(); extern void cmd_tag(); extern void cmd_undo(); extern void cmd_version(); extern void cmd_write(); extern void cmd_xit(); extern void cmd_move(); #ifdef DEBUG extern void cmd_debug(); extern void cmd_validate(); #endif #ifdef SIGTSTP extern void cmd_suspend(); #endif /*----------------------------------------------------------------------*/ /* These are used to handle VI commands */ extern MARK v_1ex(); /* : */ extern MARK v_mark(); /* m */ extern MARK v_quit(); /* Q */ extern MARK v_redraw(); /* ^L ^R */ extern MARK v_ulcase(); /* ~ */ extern MARK v_undo(); /* u */ extern MARK v_xchar(); /* x X */ extern MARK v_replace(); /* r */ extern MARK v_overtype(); /* R */ extern MARK v_selcut(); /* " */ extern MARK v_paste(); /* p P */ extern MARK v_yank(); /* y Y */ extern MARK v_delete(); /* d D */ extern MARK v_join(); /* J */ extern MARK v_insert(); /* a A i I o O */ extern MARK v_change(); /* c C */ extern MARK v_subst(); /* s */ extern MARK v_lshift(); /* < */ extern MARK v_rshift(); /* > */ extern MARK v_reformat(); /* = */ extern MARK v_filter(); /* ! */ extern MARK v_status(); /* ^G */ extern MARK v_switch(); /* ^^ */ extern MARK v_tag(); /* ^] */ extern MARK v_xit(); /* ZZ */ extern MARK v_undoline(); /* U */ extern MARK v_again(); /* & */ #ifndef NO_EXTENSIONS extern MARK v_keyword(); /* K */ extern MARK v_increment(); /* * */ #endif #ifndef NO_ERRLIST extern MARK v_errlist(); /* * */ #endif #ifndef NO_AT extern MARK v_at(); /* @ */ #endif #ifdef SIGTSTP extern MARK v_suspend(); /* ^Z */ #endif #ifndef NO_POPUP extern MARK v_popup(); /* \ */ #endif /*----------------------------------------------------------------------*/ /* These flags describe the quirks of the individual visual commands */ #define NO_FLAGS 0x00 #define MVMT 0x01 /* this is a movement command */ #define PTMV 0x02 /* this can be *part* of a movement command */ #define FRNT 0x04 /* after move, go to front of line */ #define INCL 0x08 /* include last char when used with c/d/y */ #define LNMD 0x10 /* use line mode of c/d/y */ #define NCOL 0x20 /* this command can't change the column# */ #define NREL 0x40 /* this is "non-relative" -- set the '' mark */ #define SDOT 0x80 /* set the "dot" variables, for the "." cmd */ #ifndef NO_VISIBLE # define VIZ 0x100 /* commands which can be used with 'v' */ #else # define VIZ 0 #endif /* This variable is zeroed before a command executes, and later ORed with the * command's flags after the command has been executed. It is used to force * certain flags to be TRUE for *some* invocations of a particular command. * For example, "/regexp/+offset" forces the LNMD flag, and sometimes a "p" * or "P" command will force FRNT. */ extern int force_flags; /*----------------------------------------------------------------------*/ /* These describe what mode we're in */ #define MODE_EX 1 /* executing ex commands */ #define MODE_VI 2 /* executing vi commands */ #define MODE_COLON 3 /* executing an ex command from vi mode */ #define MODE_QUIT 4 extern int mode; #define WHEN_VICMD 1 /* getkey: we're reading a VI command */ #define WHEN_VIINP 2 /* getkey: we're in VI's INPUT mode */ #define WHEN_VIREP 4 /* getkey: we're in VI's REPLACE mode */ #define WHEN_EX 8 /* getkey: we're in EX mode */ #define WHEN_MSG 16 /* getkey: we're at a "more" prompt */ #define WHEN_POPUP 32 /* getkey: we're in the pop-up menu */ #define WHEN_REP1 64 /* getkey: we're getting a single char for 'r' */ #define WHEN_CUT 128 /* getkey: we're getting a cut buffer name */ #define WHEN_MARK 256 /* getkey: we're getting a mark name */ #define WHEN_CHAR 512 /* getkey: we're getting a destination for f/F/t/T */ #define WHEN_INMV 4096 /* in input mode, interpret the key in VICMD mode */ #define WHEN_FREE 8192 /* free the keymap after doing it once */ #define WHENMASK (WHEN_VICMD|WHEN_VIINP|WHEN_VIREP|WHEN_REP1|WHEN_CUT|WHEN_MARK|WHEN_CHAR) #ifndef NO_VISIBLE extern MARK V_from; extern int V_linemd; extern MARK v_start(); #endif #ifdef DEBUG # define malloc(size) dbmalloc(size, __FILE__, __LINE__) # define free(ptr) dbfree(ptr, __FILE__, __LINE__) extern char *dbmalloc(); #endif