5 * 14407 SW Teal Blvd. #C
11 /* This is the header file for my version of vi. */
13 #define VERSION "ELVIS 1.4, by Steve Kirkendall"
14 #define COPYING "This version of ELVIS is freely redistributable."
19 #define ENOENT (-AEFILNF)
30 # define O_RDONLY S_IREAD
31 # define O_WRONLY S_IWRITE
32 # define O_RDWR (S_IREAD | S_IWRITE)
33 # define ENOENT E_PNNF
35 # include <sys/types.h>
37 # include <sys/fcntl.h>
50 /*------------------------------------------------------------------------*/
51 /* Miscellaneous constants. */
53 #define INFINITY 2000000001L /* a very large integer */
54 #define LONGKEY 10 /* longest possible raw :map key */
56 # define MAXRCLEN 1000 /* longest possible .exrc file */
59 /*------------------------------------------------------------------------*/
60 /* These describe how temporary files are divided into blocks */
62 #define BLKSIZE 1024 /* size of blocks */
63 #define MAXBLKS (BLKSIZE / sizeof(unsigned short))
66 char c[BLKSIZE]; /* for text blocks */
67 unsigned short n[MAXBLKS]; /* for the header block */
71 /*------------------------------------------------------------------------*/
72 /* These are used manipulate BLK buffers. */
74 extern BLK hdr; /* buffer for the header block */
75 extern BLK *blkget(); /* given index into hdr.c[], reads block */
76 extern BLK *blkadd(); /* inserts a new block into hdr.c[] */
78 /*------------------------------------------------------------------------*/
79 /* These are used to keep track of various flags */
80 extern struct _viflags
82 short file; /* file flags */
87 #define NEWFILE 0x0001 /* the file was just created */
88 #define READONLY 0x0002 /* the file is read-only */
89 #define HADNUL 0x0004 /* the file contained NUL characters */
90 #define MODIFIED 0x0008 /* the file has been modified */
91 #define NOFILE 0x0010 /* no name is known for the current text */
92 #define ADDEDNL 0x0020 /* newlines were added to the file */
94 /* macros used to set/clear/test flags */
95 #define setflag(x,y) viflags.x |= y
96 #define clrflag(x,y) viflags.x &= ~y
97 #define tstflag(x,y) (viflags.x & y)
98 #define initflags() viflags.file = 0;
101 extern char o_autoindent[1];
102 extern char o_autoprint[1];
103 extern char o_autowrite[1];
105 extern char o_cc[30];
108 extern char o_charattr[1];
110 extern char o_columns[3];
111 extern char o_digraph[1];
112 extern char o_directory[30];
113 extern char o_edcompatible[1];
114 extern char o_errorbells[1];
115 extern char o_exrefresh[1];
117 extern char o_flipcase[80];
120 extern char o_hideformat[1];
122 extern char o_ignorecase[1];
123 #ifndef NO_EXTENSIONS
124 extern char o_inputmode[1];
126 extern char o_keytime[3];
127 extern char o_keywordprg[80];
128 extern char o_lines[3];
129 extern char o_list[1];
131 extern char o_magic[1];
134 extern char o_make[30];
137 extern char o_modeline[1];
140 extern char o_paragraphs[30];
143 extern char o_pcbios[1];
145 extern char o_readonly[1];
146 extern char o_report[3];
147 extern char o_scroll[3];
149 extern char o_sections[30];
151 extern char o_shell[60];
153 extern char o_showmatch[1];
156 extern char o_smd[1];
158 extern char o_shiftwidth[3];
159 extern char o_sidescroll[3];
160 extern char o_sync[1];
161 extern char o_tabstop[3];
162 extern char o_term[30];
163 extern char o_vbell[1];
164 extern char o_warn[1];
165 extern char o_wrapmargin[3];
166 extern char o_wrapscan[1];
168 /*------------------------------------------------------------------------*/
169 /* These help support the single-line multi-change "undo" -- shift-U */
171 extern char U_text[BLKSIZE];
174 /*------------------------------------------------------------------------*/
175 /* These are used to refer to places in the text */
178 #define markline(x) (long)((x) / BLKSIZE)
179 #define markidx(x) (int)((x) & (BLKSIZE - 1))
180 #define MARK_UNSET ((MARK)0)
181 #define MARK_FIRST ((MARK)BLKSIZE)
182 #define MARK_LAST ((MARK)(nlines * BLKSIZE))
183 #define MARK_AT_LINE(x) ((MARK)((x) * BLKSIZE))
186 extern MARK mark[NMARKS]; /* marks a-z, plus mark ' and two temps */
187 extern MARK cursor; /* mark where line is */
189 /*------------------------------------------------------------------------*/
190 /* These are used to keep track of the current & previous files. */
192 extern long origtime; /* modification date&time of the current file */
193 extern char origname[256]; /* name of the current file */
194 extern char prevorig[256]; /* name of the preceding file */
195 extern long prevline; /* line number from preceding file */
197 /*------------------------------------------------------------------------*/
198 /* misc housekeeping variables & functions */
200 extern int tmpfd; /* fd used to access the tmp file */
201 extern long lnum[MAXBLKS]; /* last line# of each block */
202 extern long nlines; /* number of lines in the file */
203 extern char args[BLKSIZE]; /* file names given on the command line */
204 extern int argno; /* the current element of args[] */
205 extern int nargs; /* number of filenames in args */
206 extern long changes; /* counts changes, to prohibit short-cuts */
207 extern int significant; /* boolean: was a *REAL* change made? */
208 extern int mustredraw; /* boolean: force total redraw of screen? */
209 extern BLK tmpblk; /* a block used to accumulate changes */
210 extern long topline; /* file line number of top line */
211 extern int leftcol; /* column number of left col */
212 #define botline (topline + LINES - 2)
213 #define rightcol (leftcol + COLS - 1)
214 extern int physcol; /* physical column number that cursor is on */
215 extern int physrow; /* physical row number that cursor is on */
216 extern int exwrote; /* used to detect verbose ex commands */
217 extern int doingdot; /* boolean: are we doing the "." command? */
218 extern int doingglobal; /* boolean: are doing a ":g" command? */
219 extern long rptlines; /* number of lines affected by a command */
220 extern char *rptlabel; /* description of how lines were affected */
221 extern char *fetchline(); /* read a given line from tmp file */
222 extern char *parseptrn(); /* isolate a regexp in a line */
223 extern MARK paste(); /* paste from cut buffer to a given point */
224 extern char *wildcard(); /* expand wildcards in filenames */
225 extern MARK input(); /* inserts characters from keyboard */
226 extern char *linespec(); /* finds the end of a /regexp/ string */
227 #define ctrl(ch) ((ch)&037)
229 extern long allocate(); /* allocate a free block of the tmp file */
231 extern int trapint(); /* trap handler for SIGINT */
232 extern void blkdirty(); /* marks a block as being "dirty" */
233 extern void blkflush(); /* writes a single dirty block to the disk */
234 extern void blksync(); /* forces all "dirty" blocks to disk */
235 extern void blkinit(); /* resets the block cache to "empty" state */
236 extern void beep(); /* rings the terminal's bell */
237 extern void exrefresh(); /* writes text to the screen */
238 extern void msg(); /* writes a printf-style message to the screen */
239 extern void reset_msg(); /* resets the "manymsgs" flag */
240 extern void endmsgs(); /* if "manymsgs" is set, then scroll up 1 line */
241 extern void garbage(); /* reclaims any garbage blocks */
242 extern void redraw(); /* updates the screen after a change */
243 extern void resume_curses();/* puts the terminal in "cbreak" mode */
244 extern void beforedo(); /* saves current revision before a new change */
245 extern void afterdo(); /* marks end of a beforedo() change */
246 extern void abortdo(); /* like "afterdo()" followed by "undo()" */
247 extern int undo(); /* restores file to previous undo() */
248 extern void dumpkey(); /* lists key mappings to the screen */
249 extern void mapkey(); /* defines a new key mapping */
250 extern void savekeys(); /* lists key mappings to a file */
251 extern void redrawrange(); /* records clues from modify.c */
252 extern void cut(); /* saves text in a cut buffer */
253 extern void delete(); /* deletes text */
254 extern void add(); /* adds text */
255 extern void change(); /* deletes text, and then adds other text */
256 extern void cutswitch(); /* updates cut buffers when we switch files */
257 extern void do_abbr(); /* defines or lists abbreviations */
258 extern void do_digraph(); /* defines or lists digraphs */
259 extern void exstring(); /* execute a string as EX commands */
260 extern void dumpopts();
261 extern void setopts();
262 extern void saveopts();
264 extern void savedigs();
267 extern void saveabbr();
269 extern void cutname();
270 extern void cutname();
271 extern void initopts();
272 extern void cutend();
274 /*------------------------------------------------------------------------*/
275 /* macros that are used as control structures */
277 #define BeforeAfter(before, after) for((before),bavar=1;bavar;(after),bavar=0)
278 #define ChangeText BeforeAfter(beforedo(FALSE),afterdo())
280 extern int bavar; /* used only in BeforeAfter macros */
282 /*------------------------------------------------------------------------*/
283 /* These are the movement commands. Each accepts a mark for the starting */
284 /* location & number and returns a mark for the destination. */
286 extern MARK m_updnto(); /* k j G */
287 extern MARK m_right(); /* h */
288 extern MARK m_left(); /* l */
289 extern MARK m_tocol(); /* | */
290 extern MARK m_front(); /* ^ */
291 extern MARK m_rear(); /* $ */
292 extern MARK m_fword(); /* w */
293 extern MARK m_bword(); /* b */
294 extern MARK m_eword(); /* e */
295 extern MARK m_fWord(); /* W */
296 extern MARK m_bWord(); /* B */
297 extern MARK m_eWord(); /* E */
298 extern MARK m_fparagraph(); /* } */
299 extern MARK m_bparagraph(); /* { */
300 extern MARK m_fsection(); /* ]] */
301 extern MARK m_bsection(); /* [[ */
302 extern MARK m_match(); /* % */
304 extern MARK m_fsentence(); /* ) */
305 extern MARK m_bsentence(); /* ( */
307 extern MARK m_tomark(); /* 'm */
308 extern MARK m_nsrch(); /* n */
309 extern MARK m_Nsrch(); /* N */
310 extern MARK m_fsrch(); /* /regexp */
311 extern MARK m_bsrch(); /* ?regexp */
312 #ifndef NO_CHARSEARCH
313 extern MARK m__ch(); /* ; , */
314 extern MARK m_fch(); /* f */
315 extern MARK m_tch(); /* t */
316 extern MARK m_Fch(); /* F */
317 extern MARK m_Tch(); /* T */
319 extern MARK m_row(); /* H L M */
320 extern MARK m_z(); /* z */
321 extern MARK m_scroll(); /* ^B ^F ^E ^Y ^U ^D */
323 /* Some stuff that is used by movement functions... */
325 extern MARK adjmove(); /* a helper fn, used by move fns */
327 /* This macro is used to set the default value of cnt */
328 #define DEFAULT(val) if (cnt < 1) cnt = (val)
330 /* These are used to minimize calls to fetchline() */
331 extern int plen; /* length of the line */
332 extern long pline; /* line number that len refers to */
333 extern long pchgs; /* "changes" level that len refers to */
334 extern char *ptext; /* text of previous line, if valid */
335 extern void pfetch();
336 extern char digraph();
338 /* This is used to build a MARK that corresponds to a specific point in the
339 * line that was most recently pfetch'ed.
341 #define buildmark(text) (MARK)(BLKSIZE * pline + (int)((text) - ptext))
344 /*------------------------------------------------------------------------*/
345 /* These are used to handle EX commands. */
347 #define CMD_NULL 0 /* NOT A VALID COMMAND */
348 #define CMD_ABBR 1 /* "define an abbreviation" */
349 #define CMD_ARGS 2 /* "show me the args" */
350 #define CMD_APPEND 3 /* "insert lines after this line" */
351 #define CMD_AT 4 /* "execute a cut buffer's contents via EX" */
352 #define CMD_BANG 5 /* "run a single shell command" */
353 #define CMD_CC 6 /* "run `cc` and then do CMD_ERRLIST" */
354 #define CMD_CD 7 /* "change directories" */
355 #define CMD_CHANGE 8 /* "change some lines" */
356 #define CMD_COPY 9 /* "copy the selected text to a given place" */
357 #define CMD_DELETE 10 /* "delete the selected text" */
358 #define CMD_DIGRAPH 11 /* "add a digraph, or display them all" */
359 #define CMD_EDIT 12 /* "switch to a different file" */
360 #define CMD_EQUAL 13 /* "display a line number" */
361 #define CMD_ERRLIST 14 /* "locate the next error in a list" */
362 #define CMD_FILE 15 /* "show the file's status" */
363 #define CMD_GLOBAL 16 /* "globally search & do a command" */
364 #define CMD_INSERT 17 /* "insert lines before the current line" */
365 #define CMD_JOIN 18 /* "join the selected line & the one after" */
366 #define CMD_LIST 19 /* "print lines, making control chars visible" */
367 #define CMD_MAKE 20 /* "run `make` and then do CMD_ERRLIST" */
368 #define CMD_MAP 21 /* "adjust the keyboard map" */
369 #define CMD_MARK 22 /* "mark this line" */
370 #define CMD_MKEXRC 23 /* "make a .exrc file" */
371 #define CMD_MOVE 24 /* "move the selected text to a given place" */
372 #define CMD_NEXT 25 /* "switch to next file in args" */
373 #define CMD_NUMBER 26 /* "print lines from the file w/ line numbers" */
374 #define CMD_PRESERVE 27 /* "act as though vi crashed" */
375 #define CMD_PREVIOUS 28 /* "switch to the previous file in args" */
376 #define CMD_PRINT 29 /* "print the selected text" */
377 #define CMD_PUT 30 /* "insert any cut lines before this line" */
378 #define CMD_QUIT 31 /* "quit without writing the file" */
379 #define CMD_READ 32 /* "append the given file after this line */
380 #define CMD_RECOVER 33 /* "recover file after vi crashes" - USE -r FLAG */
381 #define CMD_REWIND 34 /* "rewind to first file" */
382 #define CMD_SET 35 /* "set a variable's value" */
383 #define CMD_SHELL 36 /* "run some lines through a command" */
384 #define CMD_SHIFTL 37 /* "shift lines left" */
385 #define CMD_SHIFTR 38 /* "shift lines right" */
386 #define CMD_SOURCE 39 /* "interpret a file's contents as ex commands" */
387 #define CMD_STOP 40 /* same as CMD_SUSPEND */
388 #define CMD_SUBAGAIN 41 /* "repeat the previous substitution" */
389 #define CMD_SUBSTITUTE 42 /* "substitute text in this line" */
390 #define CMD_SUSPEND 43 /* "suspend the vi session" */
391 #define CMD_TR 44 /* "transliterate chars in the selected lines" */
392 #define CMD_TAG 45 /* "go to a particular tag" */
393 #define CMD_UNABBR 46 /* "remove an abbreviation definition" */
394 #define CMD_UNDO 47 /* "undo the previous command" */
395 #define CMD_UNMAP 48 /* "remove a key sequence map */
396 #define CMD_VERSION 49 /* "describe which version this is" */
397 #define CMD_VGLOBAL 50 /* "apply a cmd to lines NOT containing an RE" */
398 #define CMD_VISUAL 51 /* "go into visual mode" */
399 #define CMD_WQUIT 52 /* "write this file out (any case) & quit" */
400 #define CMD_WRITE 53 /* "write the selected(?) text to a given file" */
401 #define CMD_XIT 54 /* "write this file out (if modified) & quit" */
402 #define CMD_YANK 55 /* "copy the selected text into the cut buffer" */
404 # define CMD_DEBUG 56 /* access to internal data structures */
405 # define CMD_VALIDATE 57 /* check for internal consistency */
411 extern void doexcmd();
414 extern void cmd_abbr();
416 extern void cmd_append();
417 extern void cmd_args();
419 extern void cmd_at();
421 extern void cmd_cd();
422 extern void cmd_delete();
424 extern void cmd_digraph();
426 extern void cmd_edit();
428 extern void cmd_errlist();
430 extern void cmd_file();
431 extern void cmd_global();
432 extern void cmd_join();
433 extern void cmd_mark();
435 extern void cmd_make();
437 extern void cmd_map();
439 extern void cmd_mkexrc();
441 extern void cmd_next();
442 extern void cmd_print();
443 extern void cmd_put();
444 extern void cmd_read();
445 extern void cmd_set();
446 extern void cmd_shell();
447 extern void cmd_shift();
448 extern void cmd_source();
449 extern void cmd_substitute();
450 extern void cmd_tag();
451 extern void cmd_undo();
452 extern void cmd_version();
453 extern void cmd_visual();
454 extern void cmd_write();
455 extern void cmd_xit();
456 extern void cmd_move();
458 extern void cmd_debug();
459 extern void cmd_validate();
462 /*----------------------------------------------------------------------*/
463 /* These are used to handle VI commands */
465 extern MARK v_1ex(); /* : */
466 extern MARK v_mark(); /* m */
467 extern MARK v_quit(); /* Q */
468 extern MARK v_redraw(); /* ^L ^R */
469 extern MARK v_ulcase(); /* ~ */
470 extern MARK v_undo(); /* u */
471 extern MARK v_xchar(); /* x */
472 extern MARK v_Xchar(); /* X */
473 extern MARK v_replace(); /* r */
474 extern MARK v_overtype(); /* R */
475 extern MARK v_selcut(); /* " */
476 extern MARK v_paste(); /* p P */
477 extern MARK v_yank(); /* y Y */
478 extern MARK v_delete(); /* d D */
479 extern MARK v_join(); /* J */
480 extern MARK v_insert(); /* a A i I o O */
481 extern MARK v_change(); /* c C */
482 extern MARK v_subst(); /* s */
483 extern MARK v_lshift(); /* < */
484 extern MARK v_rshift(); /* > */
485 extern MARK v_filter(); /* ! */
486 extern MARK v_status(); /* ^G */
487 extern MARK v_switch(); /* ^^ */
488 extern MARK v_tag(); /* ^] */
489 extern MARK v_xit(); /* ZZ */
490 extern MARK v_undoline(); /* U */
491 extern MARK v_again(); /* & */
492 #ifndef NO_EXTENSIONS
493 extern MARK v_keyword(); /* ^K */
494 extern MARK v_increment(); /* * */
497 extern MARK v_errlist(); /* * */
500 extern MARK v_at(); /* @ */
503 /*----------------------------------------------------------------------*/
504 /* These describe what mode we're in */
506 #define MODE_EX 1 /* executing ex commands */
507 #define MODE_VI 2 /* executing vi commands */
508 #define MODE_COLON 3 /* executing an ex command from vi mode */
512 #define WHEN_VICMD 1 /* getkey: we're reading a VI command */
513 #define WHEN_VIINP 2 /* getkey: we're in VI's INPUT mode */
514 #define WHEN_VIREP 4 /* getkey: we're in VI's REPLACE mode */
515 #define WHEN_EX 8 /* getkey: we're in EX mode */
516 #define WHEN_MSG 16 /* getkey: we're at a "more" prompt */
517 #define WHEN_INMV 256 /* in input mode, interpret the key in VICMD mode */