4.3BSD - /usr/src/new/jove/jove.h

   1: /*************************************************************************
   2:  * This program is copyright (C) 1985, 1986 by Jonathan Payne.  It is    *
   3:  * provided to you without charge for use only on a licensed Unix        *
   4:  * system.  You may copy JOVE provided that this notice is included with *
   5:  * the copy.  You may not sell copies of this program or versions        *
   6:  * modified for use on microcomputer systems, unless the copies are      *
   7:  * included with a Unix system distribution and the source is provided.  *
   8:  *************************************************************************/
   9: 
  10: /* jove.h header file to be included by EVERYONE */
  11: 
  12: #include <setjmp.h>
  13: #include <sys/types.h>
  14: 
  15: #ifndef TUNED
  16: #   include "tune.h"
  17: #endif
  18: 
  19: #define private static
  20: 
  21: #ifndef BSD4_2
  22: #   ifdef MENLO_JCL
  23: #	ifndef EUNICE
  24: #		define signal    sigset
  25: #	endif
  26: #   endif MENLO_JCL
  27: #endif
  28: 
  29: #define EOF -1
  30: #define NULL    0
  31: #define NIL 0
  32: 
  33: /* kinds of regular expression compiles */
  34: #define NORM    0   /* nothing special */
  35: #define OKAY_RE 1   /* allow regular expressions */
  36: #define IN_CB   2   /* in curly brace; implies OKAY_RE */
  37: 
  38: /* return codes for command completion (all < 0 because >= 0 are
  39:    legitimate offsets into array of strings */
  40: 
  41: #define AMBIGUOUS   -2  /* matches more than one at this point */
  42: #define UNIQUE      -3  /* matches only one string */
  43: #define ORIGINAL    -4  /* matches no strings at all! */
  44: #define NULLSTRING  -5  /* just hit return without typing anything */
  45: 
  46: /* values for the `flags' argument to complete */
  47: #define NOTHING     0   /* opposite of RET_STATE */
  48: #define RET_STATE   1   /* return state when we hit return */
  49: #define RCOMMAND    2   /* we are reading a joverc file */
  50: 
  51: #define DEFINE      01  /* defining this macro */
  52: #define EXECUTE     02  /* executing this macro */
  53: #define SAVE        04  /* this macro needs saving to a file */
  54: 
  55: #define LBSIZE      BUFSIZ  /* same as a logical disk block */
  56: #define FILESIZE    256
  57: 
  58: #define FORWARD     1
  59: #define BACKWARD    -1
  60: 
  61: #define CTL(c)      ('c' & 037)
  62: #define META(c)     ('c' | 0200)
  63: #define RUBOUT      '\177'
  64: #define LF      CTL(J)
  65: #define CR      CTL(M)
  66: #define BS      CTL(H)
  67: #define ESC     `\033'
  68: 
  69: #define DoTimes(f, n)   exp_p = 1, exp = n, f
  70: #define HALF(wp)    ((wp->w_height - 1) / 2)
  71: #define IsModified(b)   (b->b_modified)
  72: #define SIZE(wp)    (wp->w_height - 1)
  73: #define SavLine(a, b)   (a->l_dline = putline(b))
  74: #define SetLine(line)   DotTo(line, 0)
  75: #define bobp()      (firstp(curline) && bolp())
  76: #define bolp()      (curchar == 0)
  77: #define eobp()      (lastp(curline) && eolp())
  78: #define eolp()      (linebuf[curchar] == '\0')
  79: #define firstp(line)    (line == curbuf->b_first)
  80: #define getDOT()    getline(curline->l_dline, linebuf)
  81: #define isdirty(line)   (line->l_dline & DIRTY)
  82: #define lastp(line) (line == curbuf->b_last)
  83: #define makedirty(line) line->l_dline |= DIRTY
  84: #define one_windp() (fwind->w_next == fwind)
  85: 
  86: extern int  OkayAbort,  /* okay to abort redisplay */
  87:         BufSize;
  88: 
  89: #define ARG_CMD     1
  90: #define LINECMD     2
  91: #define KILLCMD     3   /* so we can merge kills */
  92: #define YANKCMD     4   /* so we can do ESC Y (yank-pop) */
  93: 
  94: /* Buffer type */
  95: 
  96: #define B_SCRATCH   1   /* for internal things, e.g. minibuffer ... */
  97: #define B_FILE      2   /* normal file (We Auto-save these.) */
  98: #define B_PROCESS   3   /* process output in this buffer */
  99: #define B_IPROCESS  4   /* interactive process attached to this buffer */
 100: 
 101: /* Major modes */
 102: #define FUNDAMENTAL 0   /* Fundamental mode */
 103: #define TEXT        1   /* Text mode */
 104: #define CMODE       2   /* C mode */
 105: #ifdef LISP
 106: #	define LISPMODE       3   /* Lisp mode */
 107: #	define NMAJORS        4
 108: #else
 109: #	define NMAJORS    3
 110: #endif
 111: 
 112: /* Minor Modes */
 113: #define Indent      (1 << 0)    /* indent same as previous line after return */
 114: #define ShowMatch   (1 << 1)    /* paren flash mode */
 115: #define Fill        (1 << 2)    /* text fill mode */
 116: #define OverWrite   (1 << 3)    /* over write mode */
 117: #define Abbrev      (1 << 4)    /* abbrev mode */
 118: 
 119: #define BufMinorMode(b, x)  (b->b_minor & x)
 120: 
 121: #define MinorMode(x)    BufMinorMode(curbuf, x)
 122: #define MajorMode(x)    (curbuf->b_major == x)
 123: #define SetMajor(x) ((curbuf->b_major = x), UpdModLine++)
 124: 
 125: extern char CharTable[NMAJORS][128];
 126: 
 127: /* setjmp/longjmp args for DoKeys() mainjmp */
 128: #define FIRSTCALL   0
 129: #define ERROR       1
 130: #define COMPLAIN    2   /* do the error without a getDOT */
 131: #define QUIT        3   /* leave this level of recusion */
 132: 
 133: #define QUIET       1   /* sure, why not? */
 134: 
 135: #define YES     1
 136: #define NO      0
 137: #define TRUE        1
 138: #define FALSE       0
 139: #define ON      1
 140: #define OFF     0
 141: 
 142: extern char *Mainbuf,
 143:         *HomeDir,   /* home directory */
 144:         key_strokes[],  /* strokes that make up current command */
 145:         *Inputp;
 146: 
 147: extern int  HomeLen;    /* length of home directory */
 148: 
 149: extern char NullStr[];
 150: 
 151: #ifdef VMUNIX
 152: extern char genbuf[LBSIZE],
 153:         linebuf[LBSIZE],
 154:         iobuff[LBSIZE];
 155: #else
 156: extern char *genbuf,    /* scratch pad points at s_genbuf (see main()) */
 157:         *linebuf,   /* points at s_linebuf */
 158:         *iobuff;    /* for file reading ... points at s_iobuff */
 159: #endif
 160: 
 161: extern int  InJoverc,
 162:         Interactive;
 163: 
 164: #define READ    0
 165: #define WRITE   1
 166: extern int  errno;
 167: 
 168: extern jmp_buf  mainjmp;
 169: 
 170: typedef struct window   Window;
 171: typedef struct position Bufpos;
 172: typedef struct mark Mark;
 173: typedef struct buffer   Buffer;
 174: typedef struct line Line;
 175: typedef struct iobuf    IOBUF;
 176: 
 177: struct line {
 178:     Line    *l_prev,        /* pointer to prev */
 179:         *l_next;        /* pointer to next */
 180:     disk_line   l_dline;    /* pointer to disk location */
 181: };
 182: 
 183: struct window {
 184:     Window  *w_prev,    /* circular list */
 185:         *w_next;
 186:     Buffer  *w_bufp;    /* buffer associated with this window */
 187:     Line    *w_top,     /* top line */
 188:         *w_line;    /* current line */
 189:     int w_char,
 190:         w_height,   /* window height */
 191:         w_topnum,   /* line number of the topline */
 192:         w_offset,   /* currently unused */
 193:         w_numlines, /* display line numbervs in this window? */
 194:         w_visspace, /* display whitespace visibly? */
 195:         w_dotcol,   /* UpdWindow sets this ... */
 196:         w_dotline,  /* ... and this */
 197:         w_flags;
 198: #define TOPGONE 01
 199: #define CURGONE 02  /* topline (curline) of window has been deleted
 200: 			   since the last time a redisplay was called */
 201: };
 202: 
 203: extern Window   *fwind,     /* first window in list */
 204:         *curwind;   /* current window */
 205: 
 206: struct position {
 207:     Line    *p_line;
 208:     int p_char;
 209: };
 210: 
 211: struct mark {
 212:     Line    *m_line;
 213:     int m_char;
 214:     Mark    *m_next;    /* list of marks */
 215: #define FLOATER 1
 216:     char    m_floater;  /* FLOATERing mark? */
 217: };
 218: 
 219: struct buffer {
 220:     Buffer  *b_next;        /* next buffer in chain */
 221:     char    *b_name,        /* buffer name */
 222:         *b_fname;       /* file name associated with buffer */
 223:     ino_t   b_ino;          /* inode of file name */
 224:     time_t  b_mtime;        /* last modify time ...
 225: 					   to detect two people writing
 226: 					   to the same file */
 227:     Line    *b_first,       /* pointer to first line in list */
 228:         *b_dot,         /* current line */
 229:         *b_last;        /* last line in list */
 230:     int b_char;         /* current character in line */
 231: 
 232: #define NMARKS  16          /* number of marks in the ring */
 233: 
 234:     Mark    *b_markring[NMARKS],    /* new marks are pushed saved here */
 235:         *b_marks;       /* all the marks for this buffer */
 236:     int b_themark;      /* current mark */
 237:     char    b_type,         /* file, scratch, process, iprocess */
 238:         b_ntbf,         /* needs to be found when we
 239: 					   first select? */
 240:         b_modified;     /* is the buffer modified? */
 241:     int b_major,        /* major mode */
 242:         b_minor;        /* and minor mode */
 243: };
 244: 
 245: struct macro {
 246:     int Type;       /* in this case a macro */
 247:     char    *Name;      /* name is always second ... */
 248:     int m_len,      /* length of macro so we can use ^@ */
 249:         m_buflen,   /* memory allocated for it */
 250:         m_offset,   /* index into body for defining and running */
 251:         m_flags,    /* defining/running this macro? */
 252:         m_ntimes;   /* number of times to run this macro */
 253:     char    *m_body;    /* actual body of the macro */
 254:     struct macro
 255:         *m_nextm;
 256: };
 257: 
 258: struct variable {
 259:     int Type;       /* in this case a variable */
 260:     char    *Name;      /* name is always second */
 261:     int *v_value,
 262:         v_flags;
 263: };
 264: 
 265: struct cmd {
 266:     int Type;
 267:     char    *Name;
 268:     int (*c_proc)();
 269: };
 270: 
 271: typedef struct data_obj {
 272:     int Type;
 273:     char    *Name;
 274: } data_obj; /* points to cmd, macro, or variable */
 275: 
 276: extern data_obj
 277:     *mainmap[], /* various key maps */
 278:     *pref1map[],
 279:     *pref2map[],
 280:     *miscmap[],
 281:     *LastCmd;   /* Last command invoked */
 282: 
 283: extern char *ProcFmt;
 284: 
 285: extern struct cmd   commands[];
 286: extern struct macro *macros;
 287: extern struct variable  variables[];
 288: 
 289: extern struct macro
 290:     *macstack[],
 291:     KeyMacro;
 292: 
 293: #define FUNCTION    1
 294: #define VARIABLE    2
 295: #define MACRO       3
 296: #define TYPEMASK    07
 297: #define MAJOR_MODE  010
 298: #define MINOR_MODE  020
 299: #define DefMajor(x) (FUNCTION|MAJOR_MODE|(x << 8))
 300: #define DefMinor(x) (FUNCTION|MINOR_MODE|(x << 8))
 301: 
 302: extern Buffer   *world,         /* first buffer */
 303:         *curbuf;        /* pointer into world for current buffer */
 304: 
 305: #define NUMKILLS    10  /* number of kills saved in the kill ring */
 306: 
 307: #define DIRTY       01  /* just needs updating for some reason */
 308: #define MODELINE    02  /* this is a modeline */
 309: #define L_MOD       04  /* this line has been modified internally */
 310: 
 311: struct scrimage {
 312:     int s_offset,   /* offset to start printing at */
 313:         s_flags,    /* various flags */
 314:         s_id,       /* which buffer line */
 315:         s_vln;      /* Visible Line Number */
 316:     Line    *s_lp;      /* so we can turn off red bit */
 317:     Window  *s_window;  /* window that contains this line */
 318: };
 319: 
 320: extern struct scrimage
 321:     *DesiredScreen,     /* what we want */
 322:     *PhysScreen;        /* what we got */
 323: 
 324: /* Variable flags (that can be set). */
 325: #define V_BASE10    01  /* is integer in base 10 */
 326: #define V_BASE8     02  /* is integer in base 8 */
 327: #define V_BOOL      04  /* is a boolean */
 328: #define V_STRING    010 /* is a string */
 329: #define V_CHAR      020 /* is a character */
 330: #define V_TYPEMASK  037 /* mask off the display bits */
 331: #define V_MODELINE  040 /* update modeline */
 332: #define V_CLRSCREEN 0100    /* clear and redraw screen */
 333: #define V_TTY_RESET 0200    /* redo the tty modes because we may want
 334: 				   to change some things */
 335: 
 336: extern int
 337:     OKXonXoff,      /* disable start/stop characters */
 338:     MetaKey,        /* this terminal has a meta key */
 339:     VisBell,        /* use visible bell (if possible) */
 340:     WrapScan,       /* make searches wrap */
 341:     phystab,        /* terminal's tabstop settings */
 342:     tabstop,        /* expand tabs to this number of spaces */
 343: #ifdef BACKUPFILES
 344:     BkupOnWrite,        /* make backup files when writing */
 345: #endif
 346:     RMargin,        /* right margin */
 347:     LMargin,        /* left margin */
 348:     ScrollStep,     /* how should we scroll */
 349:     WtOnMk,         /* write files on compile-it command */
 350:     EndWNewline,        /* end files with a blank line */
 351:     MarkThresh,     /* moves greater than MarkThresh
 352: 				   will SetMark */
 353:     PDelay,         /* paren flash delay in tenths of a second */
 354:     CIndIncrmt,     /* how much each indentation level pushes
 355: 				   over in C mode */
 356:     CreatMode,      /* default mode for creat'ing files */
 357:     CaseIgnore,     /* case ignore search */
 358: #ifdef ABBREV
 359:     AutoCaseAbbrev,     /* automatically do case on abbreviations */
 360: #endif
 361:     MarksShouldFloat,   /* adjust marks on insertion/deletion */
 362:     UseRE,          /* use regular expressions in search */
 363:     SyncFreq,       /* how often to sync the file pointers */
 364:     BriteMode,      /* make the mode line inverse? */
 365:     OkayBadChars,       /* allow bad characters in files created
 366: 				   by JOVE */
 367:     UpdFreq,        /* how often to update modeline */
 368:     UseBuffers,     /* use buffers with Typeout() */
 369: #ifdef BIFF
 370:     BiffChk,        /* turn off/on biff with entering/exiting jove */
 371: #endif
 372:     MailInt,        /* mail check interval */
 373: #ifdef ID_CHAR
 374:     UseIC,          /* whether or not to use i/d char
 375: 				   processesing */
 376:     SExitChar,      /* type this to stop i-search */
 377: #endif
 378:     EWSize;         /* size to make the error window */
 379: 
 380: extern char
 381: #ifdef IPROCS
 382:     proc_prompt[80],    /* process prompt */
 383: #endif
 384: #ifdef F_COMPLETION
 385:     BadExtensions[128], /* extensions (e.g., ".o" to ignore) */
 386: #endif
 387: #ifdef CMT_FMT
 388:     CmtFmt[80],
 389: #endif
 390:     ModeFmt[120],       /* mode line format string */
 391:     Mailbox[128],       /* mailbox name */
 392:     TagFile[128],       /* default tag file */
 393:     Shell[40];      /* shell to use */
 394: 
 395: extern int
 396:     exp,        /* argument count */
 397:     exp_p,      /* argument count is supplied */
 398: 
 399:     TOabort,    /* flag set by Typeout() */
 400:     io,     /* file descriptor for reading and writing files */
 401:     errormsg,   /* last message was an error message
 402: 			   so don't erase the error before it
 403: 			   has been read */
 404:     this_cmd,   /* ... */
 405:     last_cmd,   /* last command ... to implement appending
 406: 			   to kill buffer */
 407:     RecDepth,   /* recursion depth */
 408:     InputPending,   /* nonzero if there is input waiting to
 409: 			   be processed */
 410:     killptr,    /* index into killbuf */
 411:     CanScroll,  /* can this terminal scroll? */
 412:     Crashing,   /* we are in the middle of crashing */
 413:     Asking,     /* are we on read a string from the terminal? */
 414:     inIOread;   /* so we know whether we can do a redisplay. */
 415: 
 416: extern char Minibuf[LBSIZE];
 417: 
 418: #define curline curbuf->b_dot
 419: #define curchar curbuf->b_char
 420: 
 421: #define curmark     (curbuf->b_markring[curbuf->b_themark])
 422: #define b_curmark(b)    (b->b_markring[b->b_themark])
 423: 
 424: extern Line *killbuf[NUMKILLS]; /* array of pointers to killed stuff */
 425: 
 426: #define MESG_SIZE 128
 427: extern char mesgbuf[MESG_SIZE];
 428: 
 429: struct screenline {
 430:     char    *s_line,
 431:         *s_length;
 432: };
 433: 
 434: extern int
 435:     LastKeyStruck;
 436: 
 437: extern int
 438:     stackp,
 439: 
 440:     CapLine,    /* cursor line and cursor column */
 441:     CapCol,
 442: 
 443:     UpdModLine, /* whether we want to update the mode line */
 444:     UpdMesg;    /* update the message line */
 445: 
 446: #define CATCH \
 447: {\
 448:     jmp_buf sav_jmp; \
 449: \
 450:     push_env(sav_jmp); \
 451:     if (setjmp(mainjmp) == 0) {
 452: 
 453: #define ONERROR \
 454:     } else { \
 455: 
 456: #define ENDCATCH \
 457:     } \
 458:     pop_env(sav_jmp); \
 459: }
 460: 
 461: extern int
 462:     read(),
 463:     write();
 464:     getch();
 465: 
 466: extern time_t   time();
 467: extern long lseek();
 468: 
 469: extern disk_line
 470:     putline();
 471: 
 472: extern data_obj
 473:     *findcom(),
 474:     *findvar(),
 475:     *findmac();
 476: 
 477: extern Line
 478:     *next_line(),
 479:     *prev_line(),
 480:     *nbufline(),
 481:     *reg_delete(),
 482:     *lastline(),
 483:     *listput();
 484: 
 485: extern char
 486:     *getsearch(),
 487:     *pwd(),
 488:     *itoa(),
 489:     *get_time(),
 490:     *copystr(),
 491:     *basename(),
 492:     *filename(),
 493:     *getblock(),
 494:     *IOerr(),
 495:     *index(),
 496:     *ask(),
 497:     *do_ask(),
 498:     *ask_buf(),
 499:     *ask_file(),
 500:     *getline(),
 501:     *lcontents(),
 502:     *getblock(),
 503:     *malloc(),
 504:     *emalloc(),
 505:     *mktemp(),
 506:     *realloc(),
 507:     *ltobuf(),
 508:     *lbptr(),
 509:     *rindex(),
 510:     *getenv(),
 511:     *tgoto(),
 512:     *pr_name(),
 513:     *sprint(),
 514:     *StrIndex();
 515: 
 516: extern Bufpos
 517:     *docompiled(),
 518:     *dosearch(),
 519:     *DoYank(),
 520:     *c_indent(),
 521: #ifdef LISP
 522:     *lisp_indent(),
 523: #endif
 524:     *m_paren();
 525: 
 526: extern Mark
 527:     *CurMark(),
 528:     *MakeMark();
 529: 
 530: extern Window
 531:     *windlook(),
 532:     *windbp(),
 533:     *div_wind();
 534: 
 535: extern data_obj
 536:     **IsPrefix();
 537: 
 538: extern Buffer
 539:     *do_find(),
 540:     *do_select(),
 541:     *mak_buf(),
 542:     *buf_exists(),
 543:     *file_exists();
 544: 
 545: struct cmd *
 546:     FindCmd();

Defined struct's

Defined typedef's

Defined macros

Usage of this include