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[unix-history] / usr.bin / elvis / vi.h
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15637ed4
RG		 1/* vi.h */
2
3/* Author:
4 * Steve Kirkendall
5 * 14407 SW Teal Blvd. #C
6 * Beaverton, OR 97005
7 * kirkenda@cs.pdx.edu
8 */
9
08746e8b 10#define VERSION "ELVIS 1.7, by Steve Kirkendall (30 December 1992)"
15637ed4
RG		 11#define COPYING "This version of ELVIS is freely redistributable."
12
13#include <errno.h>
08746e8b
AM		 14#if TOS
15# ifndef __GNUC__
16# define ENOENT (-AEFILNF)
17# endif
15637ed4
RG		 18#endif
19
20#if TOS || VMS
21# include <types.h>
22# define O_RDONLY 0
23# define O_WRONLY 1
24# define O_RDWR 2
25# ifdef __GNUC__
26# define S_IJDIR S_IFDIR
27# endif
28#else
29# if OSK
30# include <modes.h>
31# define O_RDONLY S_IREAD
32# define O_WRONLY S_IWRITE
33# define O_RDWR (S_IREAD | S_IWRITE)
34# define ENOENT E_PNNF
35# define sprintf Sprintf
36# else
08746e8b
AM		 37# if !AMIGA
38# include <sys/types.h>
39# endif
40# if COH_286
15637ed4
RG		 41# include <sys/fcntl.h>
42# else
43# include <fcntl.h>
44# endif
45# endif
46#endif
47
48#ifndef O_BINARY
49# define O_BINARY 0
50#endif
51
52#include "curses.h"
53
54#include <signal.h>
08746e8b
AM		 55#ifdef __STDC__
56# include <stdio.h> /* for [v]sprintf prototype */
57# include <string.h> /* for str* prototypes */
58# include <stdlib.h> /* for atoi, system, malloc, free */
59# include <stdarg.h> /* for vararg definitions */
60# if ANY_UNIX
61# include <unistd.h> /* for read, write, ... prototypes */
62# include <sys/wait.h> /* for wait prototype */
63# endif
64#endif
15637ed4
RG		 65
66/*------------------------------------------------------------------------*/
67/* Miscellaneous constants. */
68
69#define INFINITY 2000000001L /* a very large integer */
70#define LONGKEY 10 /* longest possible raw :map key */
71#ifndef MAXRCLEN
72# define MAXRCLEN 1000 /* longest possible :@ command */
73#endif
74
75/*------------------------------------------------------------------------*/
76/* These describe how temporary files are divided into blocks */
77
78#define MAXBLKS (BLKSIZE / sizeof(unsigned short))
79typedef union
80{
81 char c[BLKSIZE]; /* for text blocks */
82 unsigned short n[MAXBLKS]; /* for the header block */
83}
84 BLK;
85
86/*------------------------------------------------------------------------*/
87/* These are used manipulate BLK buffers. */
88
89extern BLK hdr; /* buffer for the header block */
08746e8b
AM		 90extern BLK *blkget P_((int)); /* given index into hdr.c[], reads block */
91extern BLK *blkadd P_((int)); /* inserts a new block into hdr.c[] */
15637ed4
RG		 92
93/*------------------------------------------------------------------------*/
94/* These are used to keep track of various flags */
95extern struct _viflags
96{
97 short file; /* file flags */
98}
99 viflags;
100
101/* file flags */
102#define NEWFILE 0x0001 /* the file was just created */
103#define READONLY 0x0002 /* the file is read-only */
104#define HADNUL 0x0004 /* the file contained NUL characters */
105#define MODIFIED 0x0008 /* the file has been modified, but not saved */
106#define NOFILE 0x0010 /* no name is known for the current text */
107#define ADDEDNL 0x0020 /* newlines were added to the file */
108#define HADBS 0x0040 /* backspace chars were lost from the file */
109#define UNDOABLE 0x0080 /* file has been modified */
110#define NOTEDITED 0x0100 /* the :file command has been used */
111
112/* macros used to set/clear/test flags */
113#define setflag(x,y) viflags.x |= y
114#define clrflag(x,y) viflags.x &= ~y
115#define tstflag(x,y) (viflags.x & y)
116#define initflags() viflags.file = 0;
117
118/* The options */
119extern char o_autoindent[1];
120extern char o_autoprint[1];
121extern char o_autotab[1];
122extern char o_autowrite[1];
123extern char o_columns[3];
124extern char o_directory[30];
125extern char o_edcompatible[1];
126extern char o_equalprg[80];
127extern char o_errorbells[1];
128extern char o_exrefresh[1];
129extern char o_ignorecase[1];
130extern char o_keytime[3];
131extern char o_keywordprg[80];
132extern char o_lines[3];
133extern char o_list[1];
134extern char o_number[1];
135extern char o_readonly[1];
136extern char o_remap[1];
137extern char o_report[3];
138extern char o_scroll[3];
139extern char o_shell[60];
140extern char o_shiftwidth[3];
141extern char o_sidescroll[3];
142extern char o_sync[1];
143extern char o_tabstop[3];
144extern char o_term[30];
145extern char o_flash[1];
146extern char o_warn[1];
147extern char o_wrapscan[1];
148
149#ifndef CRUNCH
150extern char o_beautify[1];
151extern char o_exrc[1];
152extern char o_mesg[1];
153extern char o_more[1];
08746e8b 154extern char o_nearscroll[3];
15637ed4
RG		 155extern char o_novice[1];
156extern char o_prompt[1];
157extern char o_taglength[3];
08746e8b 158extern char o_tags[256];
15637ed4
RG		 159extern char o_terse[1];
160extern char o_window[3];
161extern char o_wrapmargin[3];
162extern char o_writeany[1];
163#endif
164
165#ifndef NO_ERRLIST
166extern char o_cc[30];
167extern char o_make[30];
168#endif
169
170#ifndef NO_CHARATTR
171extern char o_charattr[1];
172#endif
173
174#ifndef NO_DIGRAPH
175extern char o_digraph[1];
176extern char o_flipcase[80];
177#endif
178
179#ifndef NO_SENTENCE
180extern char o_hideformat[1];
181#endif
182
183#ifndef NO_EXTENSIONS
184extern char o_inputmode[1];
185extern char o_ruler[1];
186#endif
187
188#ifndef NO_MAGIC
189extern char o_magic[1];
190#endif
191
192#ifndef NO_MODELINES
193extern char o_modelines[1];
194#endif
195
196#ifndef NO_SENTENCE
197extern char o_paragraphs[30];
198extern char o_sections[30];
199#endif
200
201#if MSDOS
202extern char o_pcbios[1];
203#endif
204
205#ifndef NO_SHOWMATCH
206extern char o_showmatch[1];
207#endif
208
209#ifndef NO_SHOWMODE
210extern char o_smd[1];
211#endif
212
08746e8b
AM		 213#ifndef NO_TAGSTACK
214extern char o_tagstack[1];
215#endif
216
15637ed4
RG		 217/*------------------------------------------------------------------------*/
218/* These help support the single-line multi-change "undo" -- shift-U */
219
220extern char U_text[BLKSIZE];
221extern long U_line;
222
223/*------------------------------------------------------------------------*/
224/* These are used to refer to places in the text */
225
226typedef long MARK;
227#define markline(x) (long)((x) / BLKSIZE)
228#define markidx(x) (int)((x) & (BLKSIZE - 1))
229#define MARK_UNSET ((MARK)0)
230#define MARK_FIRST ((MARK)BLKSIZE)
231#define MARK_LAST ((MARK)(nlines * BLKSIZE))
08746e8b 232#define MARK_EOF ((MARK)((nlines + 1) * BLKSIZE))
15637ed4
RG		 233#define MARK_AT_LINE(x) ((MARK)(x) * BLKSIZE)
234
235#define NMARKS 29
236extern MARK mark[NMARKS]; /* marks a-z, plus mark ' and two temps */
237extern MARK cursor; /* mark where line is */
238
239/*------------------------------------------------------------------------*/
240/* These are used to keep track of the current & previous files. */
241
242extern long origtime; /* modification date&time of the current file */
243extern char origname[256]; /* name of the current file */
244extern char prevorig[256]; /* name of the preceding file */
245extern long prevline; /* line number from preceding file */
246
247/*------------------------------------------------------------------------*/
248/* misc housekeeping variables & functions */
249
08746e8b
AM		 250extern int tmpfd; /* fd used to access the tmp file */
251extern int tmpnum; /* counter used to generate unique filenames */
252extern long lnum[MAXBLKS]; /* last line# of each block */
253extern long nlines; /* number of lines in the file */
254extern char args[BLKSIZE]; /* file names given on the command line */
255extern int argno; /* the current element of args[] */
256extern int nargs; /* number of filenames in args */
257extern long changes; /* counts changes, to prohibit short-cuts */
258extern int significant; /* boolean: was a *REAL* change made? */
259extern int exitcode; /* 0=not updated, 1=overwritten, else error */
260extern BLK tmpblk; /* a block used to accumulate changes */
261extern long topline; /* file line number of top line */
262extern int leftcol; /* column number of left col */
15637ed4
RG		 263#define botline (topline + LINES - 2)
264#define rightcol (leftcol + COLS - (*o_number ? 9 : 1))
08746e8b
AM		 265extern int physcol; /* physical column number that cursor is on */
266extern int physrow; /* physical row number that cursor is on */
267extern int exwrote; /* used to detect verbose ex commands */
268extern int doingdot; /* boolean: are we doing the "." command? */
269extern int doingglobal; /* boolean: are doing a ":g" command? */
270extern long rptlines; /* number of lines affected by a command */
271extern char *rptlabel; /* description of how lines were affected */
272extern char *fetchline P_((long)); /* read a given line from tmp file */
273extern char *parseptrn P_((REG char *)); /* isolate a regexp in a line */
274extern MARK paste P_((MARK, int, int)); /* paste from cut buffer to a given point */
275extern char *wildcard P_((char *)); /* expand wildcards in filenames */
276extern MARK input P_((MARK, MARK, int, int)); /* inserts characters from keyboard */
277extern char *linespec P_((REG char *, MARK *)); /* finds the end of a /regexp/ string */
15637ed4
RG		 278#define ctrl(ch) ((ch)&037)
279#ifndef NO_RECYCLE
08746e8b
AM		 280extern long allocate P_((void)); /* allocate a free block of the tmp file */
281#endif
282extern SIGTYPE trapint P_((int)); /* trap handler for SIGINT */
283extern SIGTYPE deathtrap P_((int)); /* trap handler for deadly signals */
284extern void blkdirty P_((BLK *)); /* marks a block as being "dirty" */
285extern void blksync P_((void)); /* forces all "dirty" blocks to disk */
286extern void blkinit P_((void)); /* resets the block cache to "empty" state */
287extern void beep P_((void)); /* rings the terminal's bell */
288extern void exrefresh P_((void)); /* writes text to the screen */
289#ifdef __STDC__
290extern void msg (char *, ...); /* writes a printf-style message to the screen */
291#else
292extern void msg (); /* writes a printf-style message to the screen */
293#endif
294extern void endmsgs P_((void)); /* if "manymsgs" is set, then scroll up 1 line */
295extern void garbage P_((void)); /* reclaims any garbage blocks */
296extern void redraw P_((MARK, int)); /* updates the screen after a change */
297extern void resume_curses P_((int)); /* puts the terminal in "cbreak" mode */
298extern void beforedo P_((int)); /* saves current revision before a new change */
299extern void afterdo P_((void)); /* marks end of a beforedo() change */
300extern void abortdo P_((void)); /* like "afterdo()" followed by "undo()" */
301extern int undo P_((void)); /* restores file to previous undo() */
302extern void dumpkey P_((int, int)); /* lists key mappings to the screen */
303extern void mapkey P_((char *, char *, int, char *)); /* defines a new key mapping */
304extern void redrawrange P_((long, long, long)); /* records clues from modify.c */
305extern void cut P_((MARK, MARK)); /* saves text in a cut buffer */
306extern void delete P_((MARK, MARK)); /* deletes text */
307extern void add P_((MARK, char *)); /* adds text */
308extern void change P_((MARK, MARK, char *));/* deletes text, and then adds other text */
309extern void cutswitch P_((void)); /* updates cut buffers when we switch files */
310extern void do_digraph P_((int, char [])); /* defines or lists digraphs */
311extern void exstring P_((char *, int, int));/* execute a string as EX commands */
312extern void dumpopts P_((int)); /* display current option settings on the screen */
313extern void setopts P_((char *)); /* assign new values to options */
314extern void saveopts P_((int)); /* save current option values to a given fd */
315extern void savedigs P_((int)); /* save current non-standard digraphs to fd */
316extern void savecolor P_((int)); /* save current color settings (if any) to fd */
317extern void cutname P_((int)); /* select cut buffer for next cut/paste */
318extern void initopts P_((void)); /* initialize options */
319extern void cutend P_((void)); /* free all cut buffers & delete temp files */
320extern int storename P_((char *)); /* stamp temp file with pathname of text file */
321extern int tmpstart P_((char *)); /* load a text file into edit buffer */
322extern int tmpsave P_((char *, int)); /* write edit buffer out to text file */
323extern int tmpend P_((int)); /* call tmpsave(), and then tmpabort */
324extern int tmpabort P_((int)); /* abandon the current edit buffer */
325extern void savemaps P_((int, int)); /* write current :map or :ab commands to fd */
326extern int ansicolor P_((int, int)); /* emit ANSI color command to terminal */
327extern int filter P_((MARK, MARK, char *, int)); /* I/O though another program */
328extern int getkey P_((int)); /* return a keystroke, interpretting maps */
329extern int vgets P_((int, char *, int)); /* read a single line from keyboard */
330extern int doexrc P_((char *)); /* execute a string as a sequence of EX commands */
331extern int cb2str P_((int, char *, unsigned));/* return a string containing cut buffer's contents */
332extern int ansiquit P_((void)); /* neutralize previous ansicolor() call */
333extern int ttyread P_((char *, int, int)); /* read from keyboard with optional timeout */
334extern int tgetent P_((char *, char *)); /* start termcap */
335extern int tgetnum P_((char *)); /* get a termcap number */
336extern int tgetflag P_((char *)); /* get a termcap boolean */
337extern int getsize P_((int)); /* determine how big the screen is */
338extern int endcolor P_((void)); /* used during color output */
339extern int getabkey P_((int, char *, int));/* like getkey(), but also does abbreviations */
340extern int idx2col P_((MARK, REG char *, int)); /* returns column# of a given MARK */
341extern int cutneeds P_((BLK *)); /* returns bitmap of blocks needed to hold cutbuffer text */
342extern void execmap P_((int, char *, int)); /* replaces "raw" keys with "mapped" keys */
15637ed4 343#ifndef CRUNCH
08746e8b 344extern int wset; /* boolean: has the "window" size been set? */
15637ed4
RG		 345#endif
346
347/*------------------------------------------------------------------------*/
348/* macros that are used as control structures */
349
350#define BeforeAfter(before, after) for((before),bavar=1;bavar;(after),bavar=0)
351#define ChangeText BeforeAfter(beforedo(FALSE),afterdo())
352
353extern int bavar; /* used only in BeforeAfter macros */
354
355/*------------------------------------------------------------------------*/
356/* These are the movement commands. Each accepts a mark for the starting */
357/* location & number and returns a mark for the destination. */
358
08746e8b
AM		 359extern MARK m_updnto P_((MARK, long, int)); /* k j G */
360extern MARK m_right P_((MARK, long, int, int)); /* h */
361extern MARK m_left P_((MARK, long)); /* l */
362extern MARK m_tocol P_((MARK, long, int)); /* | */
363extern MARK m_front P_((MARK, long)); /* ^ */
364extern MARK m_rear P_((MARK, long)); /* $ */
365extern MARK m_fword P_((MARK, long, int, int)); /* w */
366extern MARK m_bword P_((MARK, long, int)); /* b */
367extern MARK m_eword P_((MARK, long, int)); /* e */
368extern MARK m_paragraph P_((MARK, long, int)); /* { } [[ ]] */
369extern MARK m_match P_((MARK, long)); /* % */
15637ed4 370#ifndef NO_SENTENCE
08746e8b 371extern MARK m_sentence P_((MARK, long, int)); /* ( ) */
15637ed4 372#endif
08746e8b 373extern MARK m_tomark P_((MARK, long, int)); /* 'm */
15637ed4 374#ifndef NO_EXTENSIONS
08746e8b 375extern MARK m_wsrch P_((char *, MARK, int)); /* ^A */
15637ed4 376#endif
08746e8b
AM		 377extern MARK m_nsrch P_((MARK, long, int)); /* n */
378extern MARK m_fsrch P_((MARK, char *)); /* /regexp */
379extern MARK m_bsrch P_((MARK, char *)); /* ?regexp */
15637ed4 380#ifndef NO_CHARSEARCH
08746e8b
AM		 381extern MARK m__ch P_((MARK, long, int)); /* ; , */
382extern MARK m_fch P_((MARK, long, int)); /* f */
383extern MARK m_tch P_((MARK, long, int)); /* t */
384extern MARK m_Fch P_((MARK, long, int)); /* F */
385extern MARK m_Tch P_((MARK, long, int)); /* T */
15637ed4 386#endif
08746e8b
AM		 387extern MARK m_row P_((MARK, long, int)); /* H L M */
388extern MARK m_z P_((MARK, long, int)); /* z */
389extern MARK m_scroll P_((MARK, long, int)); /* ^B ^F ^E ^Y ^U ^D */
15637ed4
RG		 390
391/* Some stuff that is used by movement functions... */
392
08746e8b 393extern MARK adjmove P_((MARK, REG MARK, int)); /* a helper fn, used by move fns */
15637ed4
RG		 394
395/* This macro is used to set the default value of cnt */
396#define DEFAULT(val) if (cnt < 1) cnt = (val)
397
398/* These are used to minimize calls to fetchline() */
399extern int plen; /* length of the line */
400extern long pline; /* line number that len refers to */
401extern long pchgs; /* "changes" level that len refers to */
402extern char *ptext; /* text of previous line, if valid */
08746e8b
AM		 403extern void pfetch P_((long));
404extern char digraph P_((int, int));
15637ed4
RG		 405
406/* This is used to build a MARK that corresponds to a specific point in the
407 * line that was most recently pfetch'ed.
408 */
409#define buildmark(text) (MARK)(BLKSIZE * pline + (int)((text) - ptext))
410
411
412/*------------------------------------------------------------------------*/
413/* These are used to handle EX commands. */
414
08746e8b
AM		 415#define CMD_NULL 0 /* NOT A VALID COMMAND */
416#define CMD_ABBR 1 /* "define an abbreviation" */
417#define CMD_ARGS 2 /* "show me the args" */
418#define CMD_APPEND 3 /* "insert lines after this line" */
419#define CMD_AT 4 /* "execute a cut buffer's contents via EX" */
420#define CMD_BANG 5 /* "run a single shell command" */
421#define CMD_CC 6 /* "run `cc` and then do CMD_ERRLIST" */
422#define CMD_CD 7 /* "change directories" */
423#define CMD_CHANGE 8 /* "change some lines" */
424#define CMD_COLOR 9 /* "change the default colors" */
425#define CMD_COPY 10 /* "copy the selected text to a given place" */
426#define CMD_DELETE 11 /* "delete the selected text" */
427#define CMD_DIGRAPH 12 /* "add a digraph, or display them all" */
428#define CMD_EDIT 13 /* "switch to a different file" */
429#define CMD_EQUAL 14 /* "display a line number" */
430#define CMD_ERRLIST 15 /* "locate the next error in a list" */
431#define CMD_FILE 16 /* "show the file's status" */
432#define CMD_GLOBAL 17 /* "globally search & do a command" */
433#define CMD_INSERT 18 /* "insert lines before the current line" */
434#define CMD_JOIN 19 /* "join the selected line & the one after" */
435#define CMD_LIST 20 /* "print lines, making control chars visible" */
436#define CMD_MAKE 21 /* "run `make` and then do CMD_ERRLIST" */
437#define CMD_MAP 22 /* "adjust the keyboard map" */
438#define CMD_MARK 23 /* "mark this line" */
439#define CMD_MKEXRC 24 /* "make a .exrc file" */
440#define CMD_MOVE 25 /* "move the selected text to a given place" */
441#define CMD_NEXT 26 /* "switch to next file in args" */
442#define CMD_NUMBER 27 /* "print lines from the file w/ line numbers" */
443#define CMD_POP 28 /* "pop a position off the tagstack" */
444#define CMD_PRESERVE 29 /* "act as though vi crashed" */
445#define CMD_PREVIOUS 30 /* "switch to the previous file in args" */
446#define CMD_PRINT 31 /* "print the selected text" */
447#define CMD_PUT 32 /* "insert any cut lines before this line" */
448#define CMD_QUIT 33 /* "quit without writing the file" */
449#define CMD_READ 34 /* "append the given file after this line */
450#define CMD_RECOVER 35 /* "recover file after vi crashes" - USE -r FLAG */
451#define CMD_REWIND 36 /* "rewind to first file" */
452#define CMD_SET 37 /* "set a variable's value" */
453#define CMD_SHELL 38 /* "run some lines through a command" */
454#define CMD_SHIFTL 39 /* "shift lines left" */
455#define CMD_SHIFTR 40 /* "shift lines right" */
456#define CMD_SOURCE 41 /* "interpret a file's contents as ex commands" */
457#define CMD_STOP 42 /* same as CMD_SUSPEND */
458#define CMD_SUBAGAIN 43 /* "repeat the previous substitution" */
459#define CMD_SUBSTITUTE 44 /* "substitute text in this line" */
460#define CMD_SUSPEND 45 /* "suspend the vi session" */
461#define CMD_TR 46 /* "transliterate chars in the selected lines" */
462#define CMD_TAG 47 /* "go to a particular tag" */
463#define CMD_UNABBR 48 /* "remove an abbreviation definition" */
464#define CMD_UNDO 49 /* "undo the previous command" */
465#define CMD_UNMAP 50 /* "remove a key sequence map */
466#define CMD_VERSION 51 /* "describe which version this is" */
467#define CMD_VGLOBAL 52 /* "apply a cmd to lines NOT containing an RE" */
468#define CMD_VISUAL 53 /* "go into visual mode" */
469#define CMD_WQUIT 54 /* "write this file out (any case) & quit" */
470#define CMD_WRITE 55 /* "write the selected(?) text to a given file" */
471#define CMD_XIT 56 /* "write this file out (if modified) & quit" */
472#define CMD_YANK 57 /* "copy the selected text into the cut buffer" */
473#define CMD_DEBUG 58 /* access to internal data structures */
474#define CMD_VALIDATE 59 /* check for internal consistency */
15637ed4
RG		 475typedef int CMD;
476
08746e8b
AM		 477extern void ex P_((void));
478extern void vi P_((void));
479extern void doexcmd P_((char *));
15637ed4 480
08746e8b
AM		 481extern void cmd_append P_((MARK, MARK, CMD, int, char *));
482extern void cmd_args P_((MARK, MARK, CMD, int, char *));
15637ed4 483#ifndef NO_AT
08746e8b 484 extern void cmd_at P_((MARK, MARK, CMD, int, char *));
15637ed4 485#endif
08746e8b 486extern void cmd_cd P_((MARK, MARK, CMD, int, char *));
15637ed4 487#ifndef NO_COLOR
08746e8b 488 extern void cmd_color P_((MARK, MARK, CMD, int, char *));
15637ed4 489#endif
08746e8b 490extern void cmd_delete P_((MARK, MARK, CMD, int, char *));
15637ed4 491#ifndef NO_DIGRAPH
08746e8b 492 extern void cmd_digraph P_((MARK, MARK, CMD, int, char *));
15637ed4 493#endif
08746e8b 494extern void cmd_edit P_((MARK, MARK, CMD, int, char *));
15637ed4 495#ifndef NO_ERRLIST
08746e8b 496 extern void cmd_errlist P_((MARK, MARK, CMD, int, char *));
15637ed4 497#endif
08746e8b
AM		 498extern void cmd_file P_((MARK, MARK, CMD, int, char *));
499extern void cmd_global P_((MARK, MARK, CMD, int, char *));
500extern void cmd_join P_((MARK, MARK, CMD, int, char *));
501extern void cmd_mark P_((MARK, MARK, CMD, int, char *));
15637ed4 502#ifndef NO_ERRLIST
08746e8b 503 extern void cmd_make P_((MARK, MARK, CMD, int, char *));
15637ed4 504#endif
08746e8b 505extern void cmd_map P_((MARK, MARK, CMD, int, char *));
15637ed4 506#ifndef NO_MKEXRC
08746e8b
AM		 507 extern void cmd_mkexrc P_((MARK, MARK, CMD, int, char *));
508#endif
509extern void cmd_next P_((MARK, MARK, CMD, int, char *));
510#ifndef NO_TAGSTACK
511extern void cmd_pop P_((MARK, MARK, CMD, int, char *));
512#endif
513extern void cmd_print P_((MARK, MARK, CMD, int, char *));
514extern void cmd_put P_((MARK, MARK, CMD, int, char *));
515extern void cmd_read P_((MARK, MARK, CMD, int, char *));
516extern void cmd_set P_((MARK, MARK, CMD, int, char *));
517extern void cmd_shell P_((MARK, MARK, CMD, int, char *));
518extern void cmd_shift P_((MARK, MARK, CMD, int, char *));
519extern void cmd_source P_((MARK, MARK, CMD, int, char *));
520extern void cmd_substitute P_((MARK, MARK, CMD, int, char *));
521extern void cmd_tag P_((MARK, MARK, CMD, int, char *));
522extern void cmd_undo P_((MARK, MARK, CMD, int, char *));
523extern void cmd_version P_((MARK, MARK, CMD, int, char *));
524extern void cmd_write P_((MARK, MARK, CMD, int, char *));
525extern void cmd_xit P_((MARK, MARK, CMD, int, char *));
526extern void cmd_move P_((MARK, MARK, CMD, int, char *));
15637ed4 527#ifdef DEBUG
08746e8b
AM		 528 extern void cmd_debug P_((MARK, MARK, CMD, int, char *));
529 extern void cmd_validate P_((MARK, MARK, CMD, int, char *));
15637ed4
RG		 530#endif
531#ifdef SIGTSTP
08746e8b 532 extern void cmd_suspend P_((MARK, MARK, CMD, int, char *));
15637ed4
RG		 533#endif
534
535/*----------------------------------------------------------------------*/
536/* These are used to handle VI commands */
537
08746e8b
AM		 538extern MARK v_1ex P_((MARK, char *)); /* : */
539extern MARK v_mark P_((MARK, long, int)); /* m */
540extern MARK v_quit P_((void)); /* Q */
541extern MARK v_redraw P_((void)); /* ^L ^R */
542extern MARK v_ulcase P_((MARK, long)); /* ~ */
543extern MARK v_undo P_((MARK)); /* u */
544extern MARK v_xchar P_((MARK, long, int)); /* x X */
545extern MARK v_replace P_((MARK, long, int));/* r */
546extern MARK v_overtype P_((MARK)); /* R */
547extern MARK v_selcut P_((MARK, long, int)); /* " */
548extern MARK v_paste P_((MARK, long, int)); /* p P */
549extern MARK v_yank P_((MARK, MARK)); /* y Y */
550extern MARK v_delete P_((MARK, MARK)); /* d D */
551extern MARK v_join P_((MARK, long)); /* J */
552extern MARK v_insert P_((MARK, long, int)); /* a A i I o O */
553extern MARK v_change P_((MARK, MARK)); /* c C */
554extern MARK v_subst P_((MARK, long)); /* s */
555extern MARK v_lshift P_((MARK, MARK)); /* < */
556extern MARK v_rshift P_((MARK, MARK)); /* > */
557extern MARK v_reformat P_((MARK, MARK)); /* = */
558extern MARK v_filter P_((MARK, MARK)); /* ! */
559extern MARK v_status P_((void)); /* ^G */
560extern MARK v_switch P_((void)); /* ^^ */
561extern MARK v_tag P_((char *, MARK, long)); /* ^] */
562extern MARK v_xit P_((MARK, long, int)); /* ZZ */
563extern MARK v_undoline P_((MARK)); /* U */
564extern MARK v_again P_((MARK, MARK)); /* & */
15637ed4 565#ifndef NO_EXTENSIONS
08746e8b
AM		 566extern MARK v_keyword P_((char *, MARK, long)); /* K */
567extern MARK v_increment P_((char *, MARK, long)); /* * */
15637ed4
RG		 568#endif
569#ifndef NO_ERRLIST
08746e8b 570extern MARK v_errlist P_((MARK)); /* * */
15637ed4
RG		 571#endif
572#ifndef NO_AT
08746e8b 573extern MARK v_at P_((MARK, long, int)); /* @ */
15637ed4
RG		 574#endif
575#ifdef SIGTSTP
08746e8b 576extern MARK v_suspend P_((void)); /* ^Z */
15637ed4
RG		 577#endif
578#ifndef NO_POPUP
08746e8b
AM		 579extern MARK v_popup P_((MARK, MARK)); /* \ */
580#endif
581#ifndef NO_TAGSTACK
582extern MARK v_pop P_((MARK, long, int)); /* ^T */
15637ed4
RG		 583#endif
584
585/*----------------------------------------------------------------------*/
586/* These flags describe the quirks of the individual visual commands */
587#define NO_FLAGS 0x00
588#define MVMT 0x01 /* this is a movement command */
589#define PTMV 0x02 /* this can be *part* of a movement command */
590#define FRNT 0x04 /* after move, go to front of line */
591#define INCL 0x08 /* include last char when used with c/d/y */
592#define LNMD 0x10 /* use line mode of c/d/y */
593#define NCOL 0x20 /* this command can't change the column# */
594#define NREL 0x40 /* this is "non-relative" -- set the '' mark */
595#define SDOT 0x80 /* set the "dot" variables, for the "." cmd */
08746e8b
AM		 596#define FINL 0x100 /* final testing, more strict! */
597#define NWRP 0x200 /* no line-wrap (used for 'w' and 'W') */
15637ed4 598#ifndef NO_VISIBLE
08746e8b 599# define VIZ 0x400 /* commands which can be used with 'v' */
15637ed4
RG		 600#else
601# define VIZ 0
602#endif
603
604/* This variable is zeroed before a command executes, and later ORed with the
605 * command's flags after the command has been executed. It is used to force
606 * certain flags to be TRUE for *some* invocations of a particular command.
607 * For example, "/regexp/+offset" forces the LNMD flag, and sometimes a "p"
608 * or "P" command will force FRNT.
609 */
610extern int force_flags;
611
612/*----------------------------------------------------------------------*/
613/* These describe what mode we're in */
614
615#define MODE_EX 1 /* executing ex commands */
616#define MODE_VI 2 /* executing vi commands */
617#define MODE_COLON 3 /* executing an ex command from vi mode */
618#define MODE_QUIT 4
619extern int mode;
620
621#define WHEN_VICMD 1 /* getkey: we're reading a VI command */
622#define WHEN_VIINP 2 /* getkey: we're in VI's INPUT mode */
623#define WHEN_VIREP 4 /* getkey: we're in VI's REPLACE mode */
624#define WHEN_EX 8 /* getkey: we're in EX mode */
625#define WHEN_MSG 16 /* getkey: we're at a "more" prompt */
626#define WHEN_POPUP 32 /* getkey: we're in the pop-up menu */
627#define WHEN_REP1 64 /* getkey: we're getting a single char for 'r' */
628#define WHEN_CUT 128 /* getkey: we're getting a cut buffer name */
629#define WHEN_MARK 256 /* getkey: we're getting a mark name */
630#define WHEN_CHAR 512 /* getkey: we're getting a destination for f/F/t/T */
631#define WHEN_INMV 4096 /* in input mode, interpret the key in VICMD mode */
632#define WHEN_FREE 8192 /* free the keymap after doing it once */
633#define WHENMASK (WHEN_VICMD|WHEN_VIINP|WHEN_VIREP|WHEN_REP1|WHEN_CUT|WHEN_MARK|WHEN_CHAR)
634
635#ifndef NO_VISIBLE
636extern MARK V_from;
637extern int V_linemd;
08746e8b 638extern MARK v_start P_((MARK m, long cnt, int cmd));
15637ed4
RG		 639#endif
640
641#ifdef DEBUG
642# define malloc(size) dbmalloc(size, __FILE__, __LINE__)
643# define free(ptr) dbfree(ptr, __FILE__, __LINE__)
08746e8b
AM		 644# define checkmem() dbcheckmem(__FILE__, __LINE__)
645extern char *dbmalloc P_((int, char *, int));
646#else
647# define checkmem()
15637ed4 648#endif
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.