1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1982-2008 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * David Korn <dgk@research.att.com> * 18 * * 19 ***********************************************************************/ 20 #pragma prototyped 21 #ifndef SEARCHSIZE 22 /* 23 * edit.h - common data structure for vi and emacs edit options 24 * 25 * David Korn 26 * AT&T Labs 27 * 28 */ 29 30 #define SEARCHSIZE 80 31 32 #include "FEATURE/options" 33 #include "FEATURE/locale" 34 #if !SHOPT_VSH && !SHOPT_ESH 35 # define ed_winsize() (SEARCHSIZE) 36 #else 37 38 #if !KSHELL 39 # include <setjmp.h> 40 # include <sig.h> 41 # include <ctype.h> 42 #endif /* KSHELL */ 43 44 #include "FEATURE/setjmp" 45 #include "terminal.h" 46 47 #define STRIP 0377 48 #define LOOKAHEAD 80 49 50 #if SHOPT_MULTIBYTE 51 # ifndef ESS_MAXCHAR 52 # include "national.h" 53 # endif /* ESS_MAXCHAR */ 54 typedef wchar_t genchar; 55 # define CHARSIZE (sizeof(wchar_t)<=2?3:sizeof(wchar_t)) 56 #else 57 typedef char genchar; 58 # define CHARSIZE 1 59 #endif /* SHOPT_MULTIBYTE */ 60 61 #define TABSIZE 8 62 #define PRSIZE 160 63 #define MAXLINE 1024 /* longest edit line permitted */ 64 65 typedef struct _edit_pos 66 { 67 unsigned short line; 68 unsigned short col; 69 } Edpos_t; 70 71 typedef struct edit 72 { 73 sigjmp_buf e_env; 74 int e_kill; 75 int e_erase; 76 int e_werase; 77 int e_eof; 78 int e_lnext; 79 int e_fchar; 80 int e_plen; /* length of prompt string */ 81 char e_crlf; /* zero if cannot return to beginning of line */ 82 char e_nocrnl; /* don't put a new-line with ^L */ 83 int e_llimit; /* line length limit */ 84 int e_hline; /* current history line number */ 85 int e_hloff; /* line number offset for command */ 86 int e_hismin; /* minimum history line number */ 87 int e_hismax; /* maximum history line number */ 88 int e_raw; /* set when in raw mode or alt mode */ 89 int e_cur; /* current line position */ 90 int e_eol; /* end-of-line position */ 91 int e_pcur; /* current physical line position */ 92 int e_peol; /* end of physical line position */ 93 int e_mode; /* edit mode */ 94 int e_lookahead; /* index in look-ahead buffer */ 95 int e_repeat; 96 int e_saved; 97 int e_fcol; /* first column */ 98 int e_ucol; /* column for undo */ 99 int e_wsize; /* width of display window */ 100 char *e_outbase; /* pointer to start of output buffer */ 101 char *e_outptr; /* pointer to position in output buffer */ 102 char *e_outlast; /* pointer to end of output buffer */ 103 genchar *e_inbuf; /* pointer to input buffer */ 104 char *e_prompt; /* pointer to buffer containing the prompt */ 105 genchar *e_ubuf; /* pointer to the undo buffer */ 106 genchar *e_killbuf; /* pointer to delete buffer */ 107 char e_search[SEARCHSIZE]; /* search string */ 108 genchar *e_Ubuf; /* temporary workspace buffer */ 109 genchar *e_physbuf; /* temporary workspace buffer */ 110 int e_lbuf[LOOKAHEAD];/* pointer to look-ahead buffer */ 111 int e_fd; /* file descriptor */ 112 int e_ttyspeed; /* line speed, also indicates tty parms are valid */ 113 int e_tabcount; 114 #ifdef _hdr_utime 115 ino_t e_tty_ino; 116 dev_t e_tty_dev; 117 char *e_tty; 118 #endif 119 #if SHOPT_OLDTERMIO 120 char e_echoctl; 121 char e_tcgeta; 122 struct termio e_ott; 123 #endif 124 #if SHOPT_MULTIBYTE 125 int e_curchar; 126 int e_cursize; 127 #endif 128 int *e_globals; /* global variables */ 129 genchar *e_window; /* display window image */ 130 char e_inmacro; /* processing macro expansion */ 131 #if KSHELL 132 char e_vi_insert[2]; /* for sh_keytrap */ 133 int32_t e_col; /* for sh_keytrap */ 134 #else 135 char e_prbuff[PRSIZE]; /* prompt buffer */ 136 #endif /* KSHELL */ 137 struct termios e_ttyparm; /* initial tty parameters */ 138 struct termios e_nttyparm; /* raw tty parameters */ 139 struct termios e_savetty; /* saved terminal state */ 140 int e_savefd; /* file descriptor for saved terminal state */ 141 char e_macro[4]; /* macro buffer */ 142 void *e_vi; /* vi specific data */ 143 void *e_emacs; /* emacs specific data */ 144 Shell_t *sh; /* interpreter pointer */ 145 char *e_stkptr; /* saved stack pointer */ 146 int e_stkoff; /* saved stack offset */ 147 char **e_clist; /* completion list after <ESC>= */ 148 int e_nlist; /* number of elements on completion list */ 149 int e_multiline; /* allow multiple lines for editing */ 150 int e_winsz; /* columns in window */ 151 Edpos_t e_curpos; /* cursor line and column */ 152 Namval_t *e_default; /* variable containing default value */ 153 Namval_t *e_term; /* TERM variable */ 154 char e_termname[80]; /* terminal name */ 155 } Edit_t; 156 157 #undef MAXWINDOW 158 #define MAXWINDOW 300 /* maximum width window */ 159 #define FAST 2 160 #define SLOW 1 161 #define ESC cntl('[') 162 #define UEOF -2 /* user eof char synonym */ 163 #define UINTR -3 /* user intr char synonym */ 164 #define UERASE -4 /* user erase char synonym */ 165 #define UKILL -5 /* user kill char synonym */ 166 #define UWERASE -6 /* user word erase char synonym */ 167 #define ULNEXT -7 /* user next literal char synonym */ 168 169 #if ( 'a' == 97) /* ASCII? */ 170 # define cntl(x) (x&037) 171 #else 172 # define cntl(c) (c=='D'?55:(c=='E'?45:(c=='F'?46:(c=='G'?'\a':(c=='H'?'\b': \ 173 (c=='I'?'\t':(c=='J'?'\n':(c=='T'?60:(c=='U'?61:(c=='V'?50: \ 174 (c=='W'?38:(c=='Z'?63:(c=='['?39:(c==']'?29: \ 175 (c<'J'?c+1-'A':(c+10-'J')))))))))))))))) 176 #endif 177 178 #if !KSHELL 179 # define STRIP 0377 180 # define GMACS 1 181 # define EMACS 2 182 # define VIRAW 4 183 # define EDITVI 8 184 # define NOHIST 16 185 # define EDITMASK 15 186 # define is_option(m) (opt_flag&(m)) 187 extern char opt_flag; 188 # ifdef SYSCALL 189 # define read(fd,buff,n) syscall(3,fd,buff,n) 190 # else 191 # define read(fd,buff,n) rEAd(fd,buff,n) 192 # endif /* SYSCALL */ 193 #endif /* KSHELL */ 194 195 extern void ed_crlf(Edit_t*); 196 extern void ed_putchar(Edit_t*, int); 197 extern void ed_ringbell(void); 198 extern void ed_setup(Edit_t*,int, int); 199 extern void ed_flush(Edit_t*); 200 extern int ed_getchar(Edit_t*,int); 201 extern int ed_virt_to_phys(Edit_t*,genchar*,genchar*,int,int,int); 202 extern int ed_window(void); 203 extern void ed_ungetchar(Edit_t*,int); 204 extern int ed_viread(void*, int, char*, int, int); 205 extern int ed_read(void*, int, char*, int, int); 206 extern int ed_emacsread(void*, int, char*, int, int); 207 extern Edpos_t ed_curpos(Edit_t*, genchar*, int, int, Edpos_t); 208 extern int ed_setcursor(Edit_t*, genchar*, int, int, int); 209 #if KSHELL 210 extern int ed_macro(Edit_t*,int); 211 extern int ed_expand(Edit_t*, char[],int*,int*,int,int); 212 extern int ed_fulledit(Edit_t*); 213 extern void *ed_open(Shell_t*); 214 #endif /* KSHELL */ 215 # if SHOPT_MULTIBYTE 216 extern int ed_internal(const char*, genchar*); 217 extern int ed_external(const genchar*, char*); 218 extern void ed_gencpy(genchar*,const genchar*); 219 extern void ed_genncpy(genchar*,const genchar*,int); 220 extern int ed_genlen(const genchar*); 221 extern int ed_setwidth(const char*); 222 # endif /* SHOPT_MULTIBYTE */ 223 224 extern const char e_runvi[]; 225 #if !KSHELL 226 extern const char e_version[]; 227 #endif /* KSHELL */ 228 229 #if SHOPT_HISTEXPAND 230 231 /* flags */ 232 233 #define HIST_EVENT 0x1 /* event designator seen */ 234 #define HIST_QUESTION 0x2 /* question mark event designator */ 235 #define HIST_HASH 0x4 /* hash event designator */ 236 #define HIST_WORDDSGN 0x8 /* word designator seen */ 237 #define HIST_QUICKSUBST 0x10 /* quick substition designator seen */ 238 #define HIST_SUBSTITUTE 0x20 /* for substition loop */ 239 #define HIST_NEWLINE 0x40 /* newline in squashed white space */ 240 241 /* modifier flags */ 242 243 #define HIST_PRINT 0x100 /* print new command */ 244 #define HIST_QUOTE 0x200 /* quote resulting history line */ 245 #define HIST_QUOTE_BR 0x400 /* quote every word on space break */ 246 #define HIST_GLOBALSUBST 0x800 /* apply substition globally */ 247 248 #define HIST_ERROR 0x1000 /* an error ocurred */ 249 250 /* flags to be returned */ 251 252 #define HIST_FLAG_RETURN_MASK (HIST_EVENT|HIST_PRINT|HIST_ERROR) 253 254 extern int hist_expand(const char *, char **); 255 #endif 256 257 #endif 258 #endif 259