Annotation of src/usr.bin/mg/def.h, Revision 1.4
1.1 deraadt 1: /*
2: * This file is the general header file for all parts
1.4 ! millert 3: * of the Mg display editor. It contains all of the
1.1 deraadt 4: * general definitions and macros. It also contains some
5: * conditional compilation flags. All of the per-system and
6: * per-terminal definitions are in special header files.
7: * The most common reason to edit this file would be to zap
8: * the definition of CVMVAS or BACKUP.
9: */
1.4 ! millert 10: #include "sysdef.h" /* Order is critical. */
1.1 deraadt 11: #include "ttydef.h"
12: #include "chrdef.h"
13:
14: /*
15: * If your system and/or compiler does not support the "void" type
16: * then define NO_VOID_TYPE in sysdef.h. In the absence of some
17: * other definition for VOID, the default in that case will be to
18: * turn it into an int, which works with most compilers that don't
19: * support void. In the absence of any definition of VOID or
20: * NO_VOID_TYPE, the default is to assume void is supported, which
21: * should be the case for most modern C compilers.
22: */
23:
24: #ifdef NO_VOID_TYPE
1.4 ! millert 25: #undef VOID
! 26: #define VOID int /* Default for no void is int */
1.1 deraadt 27: #else
28: #ifndef VOID
1.4 ! millert 29: #define VOID void /* Just use normal void */
! 30: #endif /* VOID */
! 31: #endif /* NO_VOID_TYPE */
1.1 deraadt 32:
33: #ifdef NO_MACRO
34: #ifndef NO_STARTUP
1.4 ! millert 35: #define NO_STARTUP /* NO_MACRO implies NO_STARTUP */
1.1 deraadt 36: #endif
37: #endif
38:
1.4 ! millert 39: typedef int (*PF) (); /* generaly useful type */
1.1 deraadt 40:
41: /*
42: * Table sizes, etc.
43: */
1.4 ! millert 44: #define NFILEN 80 /* Length, file name. */
! 45: #define NBUFN 24 /* Length, buffer name. */
! 46: #define NLINE 256 /* Length, line. */
! 47: #define PBMODES 4 /* modes per buffer */
! 48: #define NKBDM 256 /* Length, keyboard macro. */
! 49: #define NPAT 80 /* Length, pattern. */
! 50: #define HUGE 1000 /* A rather large number. */
! 51: #define NSRCH 128 /* Undoable search commands. */
! 52: #define NXNAME 64 /* Length, extended command. */
! 53: #define NKNAME 20 /* Length, key names */
1.1 deraadt 54: /*
55: * Universal.
56: */
1.4 ! millert 57: #define FALSE 0 /* False, no, bad, etc. */
! 58: #define TRUE 1 /* True, yes, good, etc. */
! 59: #define ABORT 2 /* Death, ^G, abort, etc. */
1.1 deraadt 60:
1.4 ! millert 61: #define KPROMPT 2 /* keyboard prompt */
1.1 deraadt 62:
63: /*
64: * These flag bits keep track of
65: * some aspects of the last command. The CFCPCN
66: * flag controls goal column setting. The CFKILL
67: * flag controls the clearing versus appending
68: * of data in the kill buffer.
69: */
1.4 ! millert 70: #define CFCPCN 0x0001 /* Last command was C-P, C-N */
! 71: #define CFKILL 0x0002 /* Last command was a kill */
! 72: #define CFINS 0x0004 /* Last command was self-insert */
1.1 deraadt 73:
74: /*
75: * File I/O.
76: */
1.4 ! millert 77: #define FIOSUC 0 /* Success. */
! 78: #define FIOFNF 1 /* File not found. */
! 79: #define FIOEOF 2 /* End of file. */
! 80: #define FIOERR 3 /* Error. */
! 81: #define FIOLONG 4 /* long line partially read */
1.1 deraadt 82:
83: /*
84: * Directory I/O.
85: */
1.4 ! millert 86: #define DIOSUC 0 /* Success. */
! 87: #define DIOEOF 1 /* End of file. */
! 88: #define DIOERR 2 /* Error. */
1.1 deraadt 89:
90: /*
91: * Display colors.
92: */
1.4 ! millert 93: #define CNONE 0 /* Unknown color. */
! 94: #define CTEXT 1 /* Text color. */
! 95: #define CMODE 2 /* Mode line color. */
! 96:
! 97: /*
! 98: * Flags for keyboard involked functions.
! 99: */
! 100: #define FFUNIV 1 /* universal argument */
! 101: #define FFNEGARG 2 /* negitive only argument */
! 102: #define FFOTHARG 4 /* other argument */
! 103: #define FFARG 7 /* any argument */
! 104: #define FFRAND 8 /* Called by other function */
1.1 deraadt 105:
106: /*
107: * Flags for "eread".
108: */
1.4 ! millert 109: #define EFFUNC 0x0001 /* Autocomplete functions. */
! 110: #define EFBUF 0x0002 /* Autocomplete buffers. */
! 111: #define EFFILE 0x0004 /* " files (maybe someday) */
! 112: #define EFAUTO 0x0007 /* Some autocompleteion on */
! 113: #define EFNEW 0x0008 /* New prompt. */
! 114: #define EFCR 0x0010 /* Echo CR at end; last read. */
1.1 deraadt 115:
116: /*
117: * Flags for "ldelete"/"kinsert"
118: */
119: #define KNONE 0
120: #define KFORW 1
121: #define KBACK 2
122:
123: /*
124: * All text is kept in circularly linked
125: * lists of "LINE" structures. These begin at the
126: * header line (which is the blank line beyond the
127: * end of the buffer). This line is pointed to by
128: * the "BUFFER". Each line contains a the number of
129: * bytes in the line (the "used" size), the size
130: * of the text array, and the text. The end of line
131: * is not stored as a byte; it's implied. Future
132: * additions will include update hints, and a
133: * list of marks into the line.
134: */
1.4 ! millert 135: typedef struct LINE {
! 136: struct LINE *l_fp; /* Link to the next line */
! 137: struct LINE *l_bp; /* Link to the previous line */
! 138: int l_size; /* Allocated size */
! 139: int l_used; /* Used size */
1.1 deraadt 140: #ifndef ZEROARRAY
1.4 ! millert 141: char l_text[1]; /* A bunch of chars. */
1.1 deraadt 142: #else
1.4 ! millert 143: char l_text[]; /* A bunch of chars. */
1.1 deraadt 144: #endif
1.4 ! millert 145: } LINE;
1.1 deraadt 146:
147: /*
148: * The rationale behind these macros is that you
149: * could (with some editing, like changing the type of a line
150: * link from a "LINE *" to a "REFLINE", and fixing the commands
151: * like file reading that break the rules) change the actual
152: * storage representation of lines to use something fancy on
153: * machines with small address spaces.
154: */
155: #define lforw(lp) ((lp)->l_fp)
156: #define lback(lp) ((lp)->l_bp)
157: #define lgetc(lp, n) (CHARMASK((lp)->l_text[(n)]))
158: #define lputc(lp, n, c) ((lp)->l_text[(n)]=(c))
159: #define llength(lp) ((lp)->l_used)
160: #define ltext(lp) ((lp)->l_text)
161:
162: /*
163: * All repeated structures are kept as linked lists of structures.
164: * All of these start with a LIST structure (except lines, which
165: * have their own abstraction). This will allow for
166: * later conversion to generic list manipulation routines should
167: * I decide to do that. it does mean that there are four extra
168: * bytes per window. I feel that this is an acceptable price,
169: * considering that there are usually only one or two windows.
170: */
171: typedef struct LIST {
172: union {
1.4 ! millert 173: struct MGWIN *l_wp;
! 174: struct BUFFER *x_bp; /* l_bp is used by LINE */
! 175: struct LIST *l_nxt;
1.1 deraadt 176: } l_p;
1.4 ! millert 177: char *l_name;
1.1 deraadt 178: } LIST;
1.4 ! millert 179:
1.1 deraadt 180: /*
181: * Usual hack - to keep from uglifying the code with lotsa
182: * references through the union, we #define something for it.
183: */
184: #define l_next l_p.l_nxt
185:
186: /*
187: * There is a window structure allocated for
188: * every active display window. The windows are kept in a
189: * big list, in top to bottom screen order, with the listhead at
190: * "wheadp". Each window contains its own values of dot and mark.
191: * The flag field contains some bits that are set by commands
192: * to guide redisplay; although this is a bit of a compromise in
193: * terms of decoupling, the full blown redisplay is just too
194: * expensive to run for every input character.
195: */
1.4 ! millert 196: typedef struct MGWIN {
! 197: LIST w_list; /* List header */
! 198: struct BUFFER *w_bufp; /* Buffer displayed in window */
! 199: struct LINE *w_linep; /* Top line in the window */
! 200: struct LINE *w_dotp; /* Line containing "." */
! 201: struct LINE *w_markp; /* Line containing "mark" */
! 202: int w_doto; /* Byte offset for "." */
! 203: int w_marko; /* Byte offset for "mark" */
! 204: char w_toprow; /* Origin 0 top row of window */
! 205: char w_ntrows; /* # of rows of text in window */
! 206: char w_force; /* If NZ, forcing row. */
! 207: char w_flag; /* Flags. */
! 208: } MGWIN;
1.1 deraadt 209: #define w_wndp w_list.l_p.l_wp
210: #define w_name w_list.l_name
211:
212: /*
213: * Window flags are set by command processors to
214: * tell the display system what has happened to the buffer
215: * mapped by the window. Setting "WFHARD" is always a safe thing
216: * to do, but it may do more work than is necessary. Always try
217: * to set the simplest action that achieves the required update.
218: * Because commands set bits in the "w_flag", update will see
219: * all change flags, and do the most general one.
220: */
1.4 ! millert 221: #define WFFORCE 0x01 /* Force reframe. */
! 222: #define WFMOVE 0x02 /* Movement from line to line. */
! 223: #define WFEDIT 0x04 /* Editing within a line. */
! 224: #define WFHARD 0x08 /* Better to a full display. */
! 225: #define WFMODE 0x10 /* Update mode line. */
1.1 deraadt 226:
227: /*
228: * Text is kept in buffers. A buffer header, described
229: * below, exists for every buffer in the system. The buffers are
230: * kept in a big list, so that commands that search for a buffer by
231: * name can find the buffer header. There is a safe store for the
232: * dot and mark in the header, but this is only valid if the buffer
233: * is not being displayed (that is, if "b_nwnd" is 0). The text for
234: * the buffer is kept in a circularly linked list of lines, with
235: * a pointer to the header line in "b_linep".
236: */
1.4 ! millert 237: typedef struct BUFFER {
! 238: LIST b_list; /* buffer list pointer */
! 239: struct BUFFER *b_altb; /* Link to alternate buffer */
! 240: struct LINE *b_dotp; /* Link to "." LINE structure */
! 241: struct LINE *b_markp; /* ditto for mark */
! 242: struct LINE *b_linep; /* Link to the header LINE */
! 243: struct MAPS_S *b_modes[PBMODES]; /* buffer modes */
! 244: int b_doto; /* Offset of "." in above LINE */
! 245: int b_marko; /* ditto for the "mark" */
! 246: short b_nmodes; /* number of non-fundamental modes */
! 247: char b_nwnd; /* Count of windows on buffer */
! 248: char b_flag; /* Flags */
! 249: char b_fname[NFILEN];/* File name */
! 250: struct fileinfo b_fi; /* File attributes */
! 251: } BUFFER;
1.1 deraadt 252: #define b_bufp b_list.l_p.x_bp
253: #define b_bname b_list.l_name
254:
1.4 ! millert 255: #define BFCHG 0x01 /* Changed. */
! 256: #define BFBAK 0x02 /* Need to make a backup. */
1.1 deraadt 257: #ifdef NOTAB
1.4 ! millert 258: #define BFNOTAB 0x04 /* no tab mode */
1.1 deraadt 259: #endif
1.4 ! millert 260: #define BFOVERWRITE 0x08 /* overwrite mode */
1.1 deraadt 261:
262: /*
263: * This structure holds the starting position
264: * (as a line/offset pair) and the number of characters in a
265: * region of a buffer. This makes passing the specification
266: * of a region around a little bit easier.
267: */
1.4 ! millert 268: typedef struct {
! 269: struct LINE *r_linep; /* Origin LINE address. */
! 270: int r_offset; /* Origin LINE offset. */
! 271: RSIZE r_size; /* Length in characters. */
! 272: } REGION;
! 273:
! 274: /*
! 275: * Prototypes.
! 276: */
! 277:
! 278: /* tty.c */
! 279: VOID ttinit __P((void));
! 280: VOID ttreinit __P((void));
! 281: VOID tttidy __P((void));
! 282: VOID ttmove __P((int, int));
! 283: VOID tteeol __P((void));
! 284: VOID tteeop __P((void));
! 285: VOID ttbeep __P((void));
! 286: VOID ttinsl __P((int, int, int));
! 287: VOID ttdell __P((int, int, int));
! 288: VOID ttwindow __P((int, int));
! 289: VOID ttnowindow __P((void));
! 290: VOID ttcolor __P((int));
! 291: VOID ttresize __P((void));
! 292:
! 293: /* ttyio.c */
! 294: VOID ttopen __P((void));
! 295: int ttraw __P((void));
! 296: VOID ttclose __P((void));
! 297: int ttcooked __P((void));
! 298: int ttputc __P((int));
! 299: VOID ttflush __P((void));
! 300: int ttgetc __P((void));
! 301: int ttwait __P((void));
! 302: VOID setttysize __P((void));
! 303: int typeahead __P((void));
! 304:
! 305: /* dir.c */
! 306: VOID dirinit __P((VOID));
! 307: int changedir __P((int, int));
! 308: int showcwdir __P((int, int));
! 309:
! 310: /* dired.c */
! 311: int dired __P((int, int));
! 312: int d_otherwindow __P((int, int));
! 313: int d_undel __P((int, int));
! 314: int d_undelbak __P((int, int));
! 315: int d_findfile __P((int, int));
! 316: int d_ffotherwindow __P((int, int));
! 317: int d_expunge __P((int, int));
! 318: int d_copy __P((int, int));
! 319: int d_del __P((int, int));
! 320: int d_rename __P((int, int));
! 321:
! 322: /* file.c */
! 323: int fileinsert __P((int, int));
! 324: int filevisit __P((int, int));
! 325: int poptofile __P((int, int));
! 326: BUFFER *findbuffer __P((char *));
! 327: int readin __P((char *));
! 328: int insertfile __P((char *, char *, int));
! 329: VOID makename __P((char *, char *));
! 330: int filewrite __P((int, int));
! 331: int filesave __P((int, int));
! 332: int buffsave __P((BUFFER *));
! 333: int makebkfile __P((int, int));
! 334: int writeout __P((BUFFER *, char *));
! 335: VOID upmodes __P((BUFFER *));
! 336:
! 337: /* line.c */
! 338: LINE *lalloc __P((int));
! 339: LINE *lallocx __P((int));
! 340: int lnewline __P((void));
! 341: VOID lfree __P((LINE *));
! 342: VOID lchange __P((int));
! 343: VOID kdelete __P((void));
! 344: int ldelnewline __P((void));
! 345: int linsert __P((int, int));
! 346:
! 347: /* window.c */
! 348: MGWIN *wpopup __P((void));
! 349: int nextwind __P((int, int));
! 350:
! 351: /* buffer.c */
! 352: BUFFER *bfind __P((char *, int));
! 353: int poptobuffer __P((int, int));
! 354: int killbuffer __P((int, int));
! 355: int savebuffers __P((int, int));
! 356: int listbuffers __P((int, int));
! 357: int addline __P((BUFFER *, char *));
! 358: int anycb __P((int));
! 359: int bclear __P((BUFFER *));
! 360: int showbuffer __P((BUFFER *, MGWIN *, int));
! 361: MGWIN *popbuf __P((BUFFER *));
! 362: int bufferinsert __P((int, int));
! 363: int usebuffer __P((int, int));
! 364: int notmodified __P((int, int));
! 365: int popbuftop __P((BUFFER *));
! 366:
! 367: /* display.c */
! 368: VOID vtinit __P((void));
! 369: VOID vttidy __P((void));
! 370: VOID update __P((void));
! 371:
! 372: /* echo.c */
! 373: int eyorn __P((char *));
! 374: int eyesno __P((char *));
! 375: VOID ewprintf __P((const char *fmt, ...));
! 376: int ereply __P((const char *, char *, int, ...));
! 377: int eread __P((const char *, char *, int, int, ...));
! 378: int getxtra __P((LIST *, LIST *, int, int));
! 379:
! 380: /* fileio.c */
! 381: int ffropen __P((char *, BUFFER *));
! 382: int ffwopen __P((char *, BUFFER *));
! 383: int ffclose __P((BUFFER *));
! 384: int ffputbuf __P((BUFFER *));
! 385: int ffgetline __P((char *, int, int *));
! 386: int fbackupfile __P((char *));
! 387: char *adjustname __P((char *));
! 388: char *startupfile __P((char *));
! 389: int copy __P((char *, char *));
! 390: BUFFER *dired_ __P((char *));
! 391: int d_makename __P((LINE *, char *));
! 392: LIST *make_file_list __P((char *, int));
! 393:
! 394: /* keymap.c */
! 395: LIST *complete_function_list __P((char *, int));
! 396: int complete_function __P((char *, int));
! 397:
! 398: /* kbd.c */
! 399: int do_meta __P((int, int));
! 400: int bsmap __P((int, int));
! 401: VOID ungetkey __P((int));
! 402: int getkey __P((int));
! 403: int doin __P((void));
! 404: int rescan __P((int, int));
! 405: int universal_argument __P((int, int));
! 406: int digit_argument __P((int, int));
! 407: int negative_argument __P((int, int));
! 408: int selfinsert __P((int, int));
! 409: int quote __P((int, int));
! 410:
! 411: /* main.c */
! 412: int ctrlg __P((int, int));
! 413:
! 414: /* ttyio.c */
! 415: VOID panic __P((char *));
! 416:
! 417: /* cinfo.c */
! 418: char *keyname __P((char *, int));
! 419:
! 420: /* basic.c */
! 421: int gotobol __P((int, int));
! 422: int backchar __P((int, int));
! 423: int gotoeol __P((int, int));
! 424: int forwchar __P((int, int));
! 425: int gotobob __P((int, int));
! 426: int gotoeob __P((int, int));
! 427: int forwline __P((int, int));
! 428: int backline __P((int, int));
! 429: VOID setgoal __P((void));
! 430: int getgoal __P((LINE *));
! 431: int forwpage __P((int, int));
! 432: int backpage __P((int, int));
! 433: int forw1page __P((int, int));
! 434: int back1page __P((int, int));
! 435: int pagenext __P((int, int));
! 436: VOID isetmark __P((VOID));
! 437: int setmark __P((int, int));
! 438: int swapmark __P((int, int));
! 439: int gotoline __P((int, int));
! 440:
! 441: /* random.c */
! 442: int getcolpos __P((void));
! 443: int newline __P((int, int));
! 444:
! 445: /* extend.c */
! 446: int insert __P((int, int));
! 447: int bindtokey __P((int, int));
! 448: int localbind __P((int, int));
! 449: int define_key __P((int, int));
! 450: int unbindtokey __P((int, int));
! 451: int localunbind __P((int, int));
! 452: int extend __P((int, int));
! 453: int evalexpr __P((int, int));
! 454: int evalbuffer __P((int, int));
! 455: int evalfile __P((int, int));
! 456: int load __P((char *));
! 457: int excline __P((char *));
! 458:
! 459: /* help.c */
! 460: int desckey __P((int, int));
! 461: int wallchart __P((int, int));
! 462: int help_help __P((int, int));
! 463: int apropos_command __P((int, int));
1.1 deraadt 464:
465: /*
466: * Externals.
467: */
1.4 ! millert 468: extern int thisflag;
! 469: extern int lastflag;
! 470: extern int curgoal;
! 471: extern int epresf;
! 472: extern int sgarbf;
! 473: extern int mode;
! 474: extern MGWIN *curwp;
! 475: extern BUFFER *curbp;
! 476: extern MGWIN *wheadp;
! 477: extern BUFFER *bheadp;
! 478: extern char pat[];
! 479: extern int nrow;
! 480: extern int ncol;
! 481: extern int ttrow;
! 482: extern int ttcol;
! 483: extern int tthue;
! 484: extern int tceeol;
! 485: extern int tcinsl;
! 486: extern int tcdell;
! 487: extern char cinfo[];
! 488: extern char *keystrings[];
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