Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | * nano.c * |
| 3 | * * |
| 4 | * Copyright (C) 1999 Chris Allegretta * |
| 5 | * This program is free software; you can redistribute it and/or modify * |
| 6 | * it under the terms of the GNU General Public License as published by * |
| 7 | * the Free Software Foundation; either version 1, or (at your option) * |
| 8 | * any later version. * |
| 9 | * * |
| 10 | * This program is distributed in the hope that it will be useful, * |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 13 | * GNU General Public License for more details. * |
| 14 | * * |
| 15 | * You should have received a copy of the GNU General Public License * |
| 16 | * along with this program; if not, write to the Free Software * |
| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * |
| 18 | * * |
| 19 | **************************************************************************/ |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <stdarg.h> |
| 24 | #include <signal.h> |
| 25 | #include <unistd.h> |
| 26 | #include <string.h> |
| 27 | #include <fcntl.h> |
| 28 | #include <sys/stat.h> |
| 29 | #include <sys/ioctl.h> |
| 30 | #include <sys/param.h> |
| 31 | #include <errno.h> |
| 32 | #include <ctype.h> |
| 33 | #include <locale.h> |
| 34 | #include <limits.h> |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 35 | #include <assert.h> |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 36 | |
| 37 | #include "config.h" |
| 38 | #include "proto.h" |
| 39 | #include "nano.h" |
| 40 | |
| 41 | #ifndef NANO_SMALL |
| 42 | #include <libintl.h> |
| 43 | #define _(string) gettext(string) |
| 44 | #else |
| 45 | #define _(string) (string) |
| 46 | #endif |
| 47 | |
| 48 | #ifdef HAVE_TERMIOS_H |
| 49 | #include <termios.h> |
| 50 | #endif |
| 51 | |
| 52 | #ifdef HAVE_TERMIO_H |
| 53 | #include <termio.h> |
| 54 | #endif |
| 55 | |
| 56 | #ifdef HAVE_GETOPT_H |
| 57 | #include <getopt.h> |
| 58 | #endif |
| 59 | |
| 60 | /* Former globals, now static */ |
| 61 | char *last_search; /* Last string we searched for */ |
| 62 | char *last_replace; /* Last replacement string */ |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 63 | int fill = 0; /* Fill - where to wrap lines, basically */ |
| 64 | static char *alt_speller; /* Alternative spell command */ |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 65 | struct termios oldterm; /* The user's original term settings */ |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 66 | static char *help_text_init = ""; |
| 67 | /* Initial message, not including shortcuts */ |
| 68 | |
| 69 | /* What we do when we're all set to exit */ |
| 70 | RETSIGTYPE finish(int sigage) |
| 71 | { |
| 72 | if (!ISSET(NO_HELP)) { |
| 73 | mvwaddstr(bottomwin, 1, 0, hblank); |
| 74 | mvwaddstr(bottomwin, 2, 0, hblank); |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 75 | } else |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 76 | mvwaddstr(bottomwin, 0, 0, hblank); |
| 77 | |
| 78 | wrefresh(bottomwin); |
| 79 | endwin(); |
| 80 | |
| 81 | /* Restore the old term settings */ |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 82 | tcsetattr(0, TCSANOW, &oldterm); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 83 | |
| 84 | exit(sigage); |
| 85 | } |
| 86 | |
| 87 | /* Die (gracefully?) */ |
| 88 | void die(char *msg, ...) |
| 89 | { |
| 90 | va_list ap; |
| 91 | |
| 92 | va_start(ap, msg); |
| 93 | vfprintf(stderr, msg, ap); |
| 94 | va_end(ap); |
| 95 | |
| 96 | /* if we can't save we have REAL bad problems, |
Robert Siemborski | fcf32bf | 2000-07-17 03:04:54 +0000 | [diff] [blame^] | 97 | * but we might as well TRY. */ |
| 98 | if(filename[0] == '\0') { |
| 99 | write_file("nano.save", 0); |
| 100 | } else { |
| 101 | char buf[BUFSIZ]; |
| 102 | strncpy(buf,filename,BUFSIZ); |
| 103 | strncat(buf,".save",BUFSIZ - strlen(buf)); |
| 104 | write_file(buf, 0); |
| 105 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 106 | /* Restore the old term settings */ |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 107 | tcsetattr(0, TCSANOW, &oldterm); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 108 | |
| 109 | clear(); |
| 110 | refresh(); |
| 111 | resetty(); |
| 112 | endwin(); |
| 113 | |
| 114 | fprintf(stderr, msg); |
| 115 | fprintf(stderr, _("\nBuffer written to 'nano.save'\n")); |
| 116 | |
| 117 | exit(1); /* We have a problem: exit w/ errorlevel(1) */ |
| 118 | } |
| 119 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 120 | void print_view_warning(void) |
| 121 | { |
| 122 | statusbar(_("Key illegal in VIEW mode")); |
| 123 | } |
| 124 | |
| 125 | /* Initialize global variables - no better way for now */ |
| 126 | void global_init(void) |
| 127 | { |
| 128 | int i; |
| 129 | |
| 130 | center_x = COLS / 2; |
| 131 | center_y = LINES / 2; |
| 132 | current_x = 0; |
| 133 | current_y = 0; |
| 134 | editwinrows = LINES - 5 + no_help(); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 135 | fileage = NULL; |
| 136 | cutbuffer = NULL; |
| 137 | current = NULL; |
| 138 | edittop = NULL; |
| 139 | editbot = NULL; |
| 140 | totlines = 0; |
| 141 | placewewant = 0; |
| 142 | if (!fill) |
| 143 | fill = COLS - 8; |
| 144 | hblank = nmalloc(COLS + 1); |
| 145 | |
| 146 | /* Thanks BG for this bit... */ |
| 147 | for (i = 0; i <= COLS - 1; i++) |
| 148 | hblank[i] = ' '; |
| 149 | hblank[i] = 0; |
| 150 | last_search = nmalloc(132); |
| 151 | last_replace = nmalloc(132); |
| 152 | answer = nmalloc(132); |
| 153 | |
| 154 | } |
| 155 | |
| 156 | void init_help_msg(void) |
| 157 | { |
| 158 | |
| 159 | #ifndef NANO_SMALL |
| 160 | |
| 161 | help_text_init = |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 162 | _(" nano help text\n\n " |
| 163 | "The nano editor is designed to emulate the functionality and " |
| 164 | "ease-of-use of the UW Pico text editor. There are four main " |
| 165 | "sections of the editor: The top line shows the program " |
| 166 | "version, the current filename being edited, and whether " |
| 167 | "or not the file has been modified. Next is the main editor " |
| 168 | "window showing the file being edited. The status line is " |
| 169 | "the third line from the bottom and shows important messages. " |
| 170 | "The bottom two lines show the most commonly used shortcuts " |
| 171 | "in the editor.\n\n " |
| 172 | "The notation for shortcuts is as follows: Control-key " |
| 173 | "sequences are notated with a caret (^) symbol. Alt-key " |
| 174 | "sequences are notated with an at (@) symbol. The following " |
| 175 | "keystrokes are available in the main editor window. " |
| 176 | "Optional keys are shown in parentheses:\n\n"); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 177 | #endif |
| 178 | |
| 179 | } |
| 180 | |
| 181 | /* Make a copy of a node to a pointer (space will be malloc()ed) */ |
| 182 | filestruct *copy_node(filestruct * src) |
| 183 | { |
| 184 | filestruct *dst; |
| 185 | |
| 186 | dst = nmalloc(sizeof(filestruct)); |
| 187 | dst->data = nmalloc(strlen(src->data) + 1); |
| 188 | |
| 189 | dst->next = src->next; |
| 190 | dst->prev = src->prev; |
| 191 | |
| 192 | strcpy(dst->data, src->data); |
| 193 | dst->lineno = src->lineno; |
| 194 | |
| 195 | return dst; |
| 196 | } |
| 197 | |
| 198 | /* Unlink a node from the rest of the struct */ |
| 199 | void unlink_node(filestruct * fileptr) |
| 200 | { |
| 201 | if (fileptr->prev != NULL) |
| 202 | fileptr->prev->next = fileptr->next; |
| 203 | |
| 204 | if (fileptr->next != NULL) |
| 205 | fileptr->next->prev = fileptr->prev; |
| 206 | } |
| 207 | |
| 208 | void delete_node(filestruct * fileptr) |
| 209 | { |
| 210 | if (fileptr->data != NULL) |
| 211 | free(fileptr->data); |
| 212 | free(fileptr); |
| 213 | } |
| 214 | |
| 215 | /* Okay, now let's duplicate a whole struct! */ |
| 216 | filestruct *copy_filestruct(filestruct * src) |
| 217 | { |
| 218 | filestruct *dst, *tmp, *head, *prev; |
| 219 | |
| 220 | head = copy_node(src); |
| 221 | dst = head; /* Else we barf on copying just one line */ |
| 222 | head->prev = NULL; |
| 223 | tmp = src->next; |
| 224 | prev = head; |
| 225 | |
| 226 | while (tmp != NULL) { |
| 227 | dst = copy_node(tmp); |
| 228 | dst->prev = prev; |
| 229 | prev->next = dst; |
| 230 | |
| 231 | prev = dst; |
| 232 | tmp = tmp->next; |
| 233 | } |
| 234 | |
| 235 | dst->next = NULL; |
| 236 | return head; |
| 237 | } |
| 238 | |
| 239 | /* Free() a single node */ |
| 240 | int free_node(filestruct * src) |
| 241 | { |
| 242 | if (src == NULL) |
| 243 | return 0; |
| 244 | |
| 245 | if (src->next != NULL) |
| 246 | free(src->data); |
| 247 | free(src); |
| 248 | return 1; |
| 249 | } |
| 250 | |
| 251 | int free_filestruct(filestruct * src) |
| 252 | { |
| 253 | filestruct *fileptr = src; |
| 254 | |
| 255 | if (src == NULL) |
| 256 | return 0; |
| 257 | |
| 258 | while (fileptr->next != NULL) { |
| 259 | fileptr = fileptr->next; |
| 260 | free_node(fileptr->prev); |
| 261 | |
| 262 | #ifdef DEBUG |
| 263 | fprintf(stderr, _("free_node(): free'd a node, YAY!\n")); |
| 264 | #endif |
| 265 | } |
| 266 | free_node(fileptr); |
| 267 | #ifdef DEBUG |
| 268 | fprintf(stderr, _("free_node(): free'd last node.\n")); |
| 269 | #endif |
| 270 | |
| 271 | return 1; |
| 272 | } |
| 273 | |
| 274 | int renumber_all(void) |
| 275 | { |
| 276 | filestruct *temp; |
| 277 | long i = 1; |
| 278 | |
| 279 | for (temp = fileage; temp != NULL; temp = temp->next) { |
| 280 | temp->lineno = i++; |
| 281 | } |
| 282 | |
| 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | int renumber(filestruct * fileptr) |
| 287 | { |
| 288 | filestruct *temp; |
| 289 | |
| 290 | if (fileptr == NULL || fileptr->prev == NULL || fileptr == fileage) { |
| 291 | renumber_all(); |
| 292 | return 0; |
| 293 | } |
| 294 | for (temp = fileptr; temp != NULL; temp = temp->next) { |
| 295 | temp->lineno = temp->prev->lineno + 1; |
| 296 | } |
| 297 | |
| 298 | return 0; |
| 299 | } |
| 300 | |
| 301 | /* Fix the memory allocation for a string */ |
| 302 | void align(char **strp) |
| 303 | { |
| 304 | /* There was a serious bug here: the new address was never |
| 305 | stored anywhere... */ |
| 306 | |
| 307 | *strp = nrealloc(*strp, strlen(*strp) + 1); |
| 308 | } |
| 309 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 310 | void usage(void) |
| 311 | { |
| 312 | #ifdef HAVE_GETOPT_LONG |
| 313 | printf(_("Usage: nano [GNU long option] [option] +LINE <file>\n\n")); |
| 314 | printf(_("Option Long option Meaning\n")); |
Chris Allegretta | 6724a7e | 2000-06-19 23:19:07 +0000 | [diff] [blame] | 315 | #ifdef HAVE_TABSIZE |
| 316 | printf(_ |
| 317 | (" -T --tabsize=[num] Set width of a tab to num\n")); |
| 318 | #endif |
Chris Allegretta | 4780561 | 2000-07-07 02:35:34 +0000 | [diff] [blame] | 319 | #ifdef _POSIX_VERSION |
Chris Allegretta | 9fc8d43 | 2000-07-07 01:49:52 +0000 | [diff] [blame] | 320 | printf(_ |
| 321 | (" -R --regexp Use regular expressions for search\n")); |
Chris Allegretta | 4780561 | 2000-07-07 02:35:34 +0000 | [diff] [blame] | 322 | #endif |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 323 | printf |
| 324 | (_ |
| 325 | (" -V --version Print version information and exit\n")); |
| 326 | printf(_ |
| 327 | (" -c --const Constantly show cursor position\n")); |
| 328 | printf(_ |
| 329 | (" -h --help Show this message\n")); |
Chris Allegretta | d19e991 | 2000-07-12 18:14:51 +0000 | [diff] [blame] | 330 | #ifndef NANO_SMALL |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 331 | printf(_ |
Chris Allegretta | 627de19 | 2000-07-12 02:09:17 +0000 | [diff] [blame] | 332 | (" -k --cut Let ^K cut from cursor to end of line\n")); |
Chris Allegretta | d19e991 | 2000-07-12 18:14:51 +0000 | [diff] [blame] | 333 | #endif |
Chris Allegretta | 627de19 | 2000-07-12 02:09:17 +0000 | [diff] [blame] | 334 | printf(_ |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 335 | (" -i --autoindent Automatically indent new lines\n")); |
| 336 | printf(_ |
| 337 | (" -l --nofollow Don't follow symbolic links, overwrite.\n")); |
| 338 | #ifndef NANO_SMALL |
| 339 | #ifdef NCURSES_MOUSE_VERSION |
| 340 | printf(_(" -m --mouse Enable mouse\n")); |
| 341 | #endif |
| 342 | #endif |
| 343 | printf |
| 344 | (_ |
| 345 | (" -r [#cols] --fill=[#cols] Set fill cols to (wrap lines at) #cols\n")); |
| 346 | printf(_ |
| 347 | (" -p --pico Make bottom 2 lines more Pico-like\n")); |
| 348 | printf(_ |
| 349 | (" -s [prog] --speller=[prog] Enable alternate speller\n")); |
| 350 | printf(_ |
| 351 | (" -t --tempfile Auto save on exit, don't prompt\n")); |
| 352 | printf(_ |
| 353 | (" -v --view View (read only) mode\n")); |
| 354 | printf(_ |
| 355 | (" -w --nowrap Don't wrap long lines\n")); |
| 356 | printf(_ |
| 357 | (" -x --nohelp Don't show help window\n")); |
| 358 | printf(_ |
| 359 | (" -z --suspend Enable suspend\n")); |
| 360 | printf(_ |
| 361 | (" +LINE Start at line number LINE\n")); |
| 362 | #else |
| 363 | printf(_("Usage: nano [option] +LINE <file>\n\n")); |
| 364 | printf(_("Option Meaning\n")); |
Chris Allegretta | 6724a7e | 2000-06-19 23:19:07 +0000 | [diff] [blame] | 365 | #ifdef HAVE_TABSIZE |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 366 | printf(_(" -T [num] Set width of a tab to num\n")); |
Chris Allegretta | 6724a7e | 2000-06-19 23:19:07 +0000 | [diff] [blame] | 367 | #endif |
Chris Allegretta | 9fc8d43 | 2000-07-07 01:49:52 +0000 | [diff] [blame] | 368 | printf(_(" -R Use regular expressions for search\n")); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 369 | printf(_(" -V Print version information and exit\n")); |
| 370 | printf(_(" -c Constantly show cursor position\n")); |
| 371 | printf(_(" -h Show this message\n")); |
Chris Allegretta | d19e991 | 2000-07-12 18:14:51 +0000 | [diff] [blame] | 372 | #ifndef NANO_SMALL |
Chris Allegretta | 627de19 | 2000-07-12 02:09:17 +0000 | [diff] [blame] | 373 | printf(_(" -k Let ^K cut from cursor to end of line\n")); |
Chris Allegretta | d19e991 | 2000-07-12 18:14:51 +0000 | [diff] [blame] | 374 | #endif |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 375 | printf(_(" -i Automatically indent new lines\n")); |
| 376 | printf(_ |
| 377 | (" -l Don't follow symbolic links, overwrite.\n")); |
| 378 | #ifndef NANO_SMALL |
| 379 | #ifdef NCURSES_MOUSE_VERSION |
| 380 | printf(_(" -m Enable mouse\n")); |
| 381 | #endif |
| 382 | #endif |
| 383 | printf(_ |
| 384 | (" -r [#cols] Set fill cols to (wrap lines at) #cols\n")); |
| 385 | printf(_(" -s [prog] Enable alternate speller\n")); |
| 386 | printf(_(" -p Make bottom 2 lines more Pico-like\n")); |
| 387 | printf(_(" -t Auto save on exit, don't prompt\n")); |
| 388 | printf(_(" -v View (read only) mode\n")); |
| 389 | printf(_(" -w Don't wrap long lines\n")); |
| 390 | printf(_(" -x Don't show help window\n")); |
| 391 | printf(_(" -z Enable suspend\n")); |
| 392 | printf(_(" +LINE Start at line number LINE\n")); |
| 393 | #endif |
| 394 | exit(0); |
| 395 | } |
| 396 | |
| 397 | void version(void) |
| 398 | { |
| 399 | printf(_(" nano version %s by Chris Allegretta (compiled %s, %s)\n"), |
| 400 | VERSION, __TIME__, __DATE__); |
| 401 | printf(_(" Email: nano@asty.org Web: http://www.asty.org/nano\n")); |
| 402 | } |
| 403 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 404 | filestruct *make_new_node(filestruct * prevnode) |
| 405 | { |
| 406 | filestruct *newnode; |
| 407 | |
| 408 | newnode = nmalloc(sizeof(filestruct)); |
| 409 | newnode->data = NULL; |
| 410 | |
| 411 | newnode->prev = prevnode; |
| 412 | newnode->next = NULL; |
| 413 | |
| 414 | if (prevnode != NULL) |
| 415 | newnode->lineno = prevnode->lineno + 1; |
| 416 | |
| 417 | return newnode; |
| 418 | } |
| 419 | |
| 420 | int do_mark() |
| 421 | { |
| 422 | #ifdef NANO_SMALL |
| 423 | nano_small_msg(); |
| 424 | #else |
| 425 | if (!ISSET(MARK_ISSET)) { |
| 426 | statusbar(_("Mark Set")); |
| 427 | SET(MARK_ISSET); |
| 428 | mark_beginbuf = current; |
| 429 | mark_beginx = current_x; |
| 430 | } else { |
| 431 | statusbar(_("Mark UNset")); |
| 432 | UNSET(MARK_ISSET); |
| 433 | mark_beginbuf = NULL; |
| 434 | mark_beginx = 0; |
| 435 | |
| 436 | edit_refresh(); |
| 437 | } |
| 438 | #endif |
| 439 | return 1; |
| 440 | } |
| 441 | |
| 442 | int no_help(void) |
| 443 | { |
| 444 | if ISSET |
| 445 | (NO_HELP) |
| 446 | return 2; |
| 447 | else |
| 448 | return 0; |
| 449 | } |
| 450 | |
| 451 | void nano_small_msg(void) |
| 452 | { |
| 453 | statusbar("Sorry, this function not available with nano-tiny option"); |
| 454 | } |
| 455 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 456 | /* The user typed a printable character; add it to the edit buffer */ |
| 457 | void do_char(char ch) |
| 458 | { |
Robert Siemborski | 63b3d7e | 2000-07-04 22:15:39 +0000 | [diff] [blame] | 459 | /* magic-line: when a character is inserted on the current magic line, |
| 460 | * it means we need a new one! */ |
| 461 | if(filebot == current && current->data[0] == '\0') { |
| 462 | new_magicline(); |
Chris Allegretta | 28a0f89 | 2000-07-05 22:47:54 +0000 | [diff] [blame] | 463 | fix_editbot(); |
Robert Siemborski | 63b3d7e | 2000-07-04 22:15:39 +0000 | [diff] [blame] | 464 | } |
| 465 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 466 | /* More dangerousness fun =) */ |
| 467 | current->data = nrealloc(current->data, strlen(current->data) + 2); |
| 468 | memmove(¤t->data[current_x + 1], |
| 469 | ¤t->data[current_x], |
| 470 | strlen(current->data) - current_x + 1); |
| 471 | current->data[current_x] = ch; |
| 472 | do_right(); |
| 473 | |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 474 | if (!ISSET(NO_WRAP) && (ch != '\t')) |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 475 | check_wrap(current, ch); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 476 | set_modified(); |
| 477 | check_statblank(); |
| 478 | UNSET(KEEP_CUTBUFFER); |
| 479 | totsize++; |
| 480 | |
| 481 | } |
| 482 | |
| 483 | /* Someone hits return *gasp!* */ |
| 484 | int do_enter(filestruct * inptr) |
| 485 | { |
| 486 | filestruct *new; |
| 487 | char *tmp, *spc; |
| 488 | int extra = 0; |
| 489 | |
| 490 | new = make_new_node(inptr); |
| 491 | tmp = ¤t->data[current_x]; |
| 492 | current_x = 0; |
| 493 | |
| 494 | /* Do auto-indenting, like the neolithic Turbo Pascal editor */ |
| 495 | if (ISSET(AUTOINDENT)) { |
| 496 | spc = current->data; |
| 497 | if (spc) { |
| 498 | while ((*spc == ' ') || (*spc == '\t')) { |
| 499 | extra++; |
| 500 | spc++; |
| 501 | current_x++; |
| 502 | } |
| 503 | new->data = nmalloc(strlen(tmp) + extra + 1); |
| 504 | strncpy(new->data, current->data, extra); |
| 505 | strcpy(&new->data[extra], tmp); |
| 506 | } |
| 507 | } else { |
| 508 | new->data = nmalloc(strlen(tmp) + 1); |
| 509 | strcpy(new->data, tmp); |
| 510 | } |
| 511 | *tmp = 0; |
| 512 | |
| 513 | new->next = inptr->next; |
| 514 | new->prev = inptr; |
| 515 | inptr->next = new; |
| 516 | if (new->next != NULL) |
| 517 | new->next->prev = new; |
| 518 | else { |
| 519 | filebot = new; |
| 520 | editbot = new; |
| 521 | } |
| 522 | |
| 523 | totsize++; |
| 524 | renumber(current); |
| 525 | current = new; |
| 526 | align(¤t->data); |
| 527 | |
Robert Siemborski | dd53ec2 | 2000-07-04 02:35:19 +0000 | [diff] [blame] | 528 | /* The logic here is as follows: |
| 529 | * -> If we are at the bottom of the buffer, we want to recenter |
| 530 | * (read: rebuild) the screen and forcably move the cursor. |
| 531 | * -> otherwise, we want simply to redraw the screen and update |
| 532 | * where we think the cursor is. |
| 533 | */ |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 534 | if (current_y == editwinrows - 1) { |
| 535 | edit_update(current); |
Robert Siemborski | dd53ec2 | 2000-07-04 02:35:19 +0000 | [diff] [blame] | 536 | reset_cursor(); |
| 537 | } else { |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 538 | current_y++; |
Robert Siemborski | dd53ec2 | 2000-07-04 02:35:19 +0000 | [diff] [blame] | 539 | edit_refresh(); |
| 540 | update_cursor(); |
| 541 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 542 | |
| 543 | totlines++; |
| 544 | set_modified(); |
| 545 | |
Chris Allegretta | b0ae393 | 2000-06-15 23:39:14 +0000 | [diff] [blame] | 546 | placewewant = xplustabs(); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 547 | return 1; |
| 548 | } |
| 549 | |
| 550 | int do_enter_void(void) |
| 551 | { |
| 552 | return do_enter(current); |
| 553 | } |
| 554 | |
| 555 | void do_next_word(void) |
| 556 | { |
| 557 | filestruct *fileptr; |
| 558 | int i; |
| 559 | |
| 560 | if (current == NULL) |
| 561 | return; |
| 562 | |
| 563 | i = current_x; |
| 564 | for (fileptr = current; fileptr != NULL; fileptr = fileptr->next) { |
| 565 | if (fileptr == current) { |
| 566 | while (isalnum((int) fileptr->data[i]) |
| 567 | && fileptr->data[i] != 0) |
| 568 | i++; |
| 569 | |
| 570 | if (fileptr->data[i] == 0) { |
| 571 | i = 0; |
| 572 | continue; |
| 573 | } |
| 574 | } |
| 575 | while (!isalnum((int) fileptr->data[i]) && fileptr->data[i] != 0) |
| 576 | i++; |
| 577 | |
| 578 | if (fileptr->data[i] != 0) |
| 579 | break; |
| 580 | |
| 581 | i = 0; |
| 582 | } |
| 583 | if (fileptr == NULL) |
| 584 | current = filebot; |
| 585 | else |
| 586 | current = fileptr; |
| 587 | |
| 588 | current_x = i; |
| 589 | placewewant = xplustabs(); |
| 590 | if (current->lineno >= editbot->lineno) |
| 591 | edit_update(current); |
| 592 | |
| 593 | } |
| 594 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 595 | void do_wrap(filestruct * inptr, char input_char) |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 596 | { |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 597 | int i = 0; /* Index into ->data for line. */ |
| 598 | int i_tabs = 0; /* Screen position of ->data[i]. */ |
| 599 | int last_word_end = -1; /* Location of end of last word found. */ |
| 600 | int current_word_start = -1; /* Location of start of current word. */ |
| 601 | int current_word_start_t = -1; /* Location of start of current word screen position. */ |
| 602 | int current_word_end = -1; /* Location of end of current word */ |
| 603 | int current_word_end_t = -1; /* Location of end of current word screen position. */ |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 604 | int len = strlen(inptr->data); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 605 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 606 | int down = 0; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 607 | int right = 0; |
| 608 | struct filestruct *temp = NULL; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 609 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 610 | assert(strlenpt(inptr->data) > fill); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 611 | |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 612 | for (i = 0, i_tabs = 0; i < len; i++, i_tabs++) { |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 613 | if (!isspace(inptr->data[i])) { |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 614 | last_word_end = current_word_end; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 615 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 616 | current_word_start = i; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 617 | current_word_start_t = i_tabs; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 618 | |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 619 | while (!isspace(inptr->data[i]) && inptr->data[i]) { |
| 620 | i++; |
| 621 | i_tabs++; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 622 | if (inptr->data[i] < 32) |
| 623 | i_tabs++; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 624 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 625 | |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 626 | if (inptr->data[i]) { |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 627 | current_word_end = i; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 628 | current_word_end_t = i_tabs; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 629 | } else { |
| 630 | current_word_end = i - 1; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 631 | current_word_end_t = i_tabs - 1; |
| 632 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 633 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 634 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 635 | if (inptr->data[i] == NANO_CONTROL_I) { |
| 636 | if (i_tabs % TABSIZE != 0); |
| 637 | i_tabs += TABSIZE - (i_tabs % TABSIZE); |
| 638 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 639 | |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 640 | if (current_word_end_t > fill) |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 641 | break; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 642 | } |
| 643 | |
Adam Rogoyski | 3d449b4 | 2000-06-19 17:30:14 +0000 | [diff] [blame] | 644 | /* There are a few (ever changing) cases of what the line could look like. |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 645 | * 1) only one word on the line before wrap point. |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 646 | * a) one word takes up the whole line with no starting spaces. |
| 647 | * - do nothing and return. |
| 648 | * b) cursor is on word or before word at wrap point and there are spaces at beginning. |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 649 | * - word starts new line. |
| 650 | * - keep white space on original line up to the cursor. |
| 651 | * *) cursor is after word at wrap point |
| 652 | * - either it's all white space after word, and this routine isn't called. |
| 653 | * - or we are actually in case 2 (2 words). |
| 654 | * 2) Two or more words on the line before wrap point. |
Adam Rogoyski | 3d449b4 | 2000-06-19 17:30:14 +0000 | [diff] [blame] | 655 | * a) cursor is at a word or space before wrap point |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 656 | * - word at wrap point starts a new line. |
Adam Rogoyski | 3d449b4 | 2000-06-19 17:30:14 +0000 | [diff] [blame] | 657 | * - white space at end of original line is cleared, unless |
| 658 | * it is all spaces between previous word and next word which appears after fill. |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 659 | * b) cursor is at the word at the wrap point. |
| 660 | * - word at wrap point starts a new line. |
Adam Rogoyski | 3d449b4 | 2000-06-19 17:30:14 +0000 | [diff] [blame] | 661 | * 1. pressed a space and at first character of wrap point word. |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 662 | * - white space on original line is kept to where cursor was. |
Adam Rogoyski | 3d449b4 | 2000-06-19 17:30:14 +0000 | [diff] [blame] | 663 | * 2. pressed non space (or space elsewhere). |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 664 | * - white space at end of original line is cleared. |
| 665 | * c) cursor is past the word at the wrap point. |
| 666 | * - word at wrap point starts a new line. |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 667 | * - white space at end of original line is cleared |
| 668 | */ |
| 669 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 670 | temp = nmalloc(sizeof(filestruct)); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 671 | |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 672 | /* Category 1a: one word taking up the whole line with no beginning spaces. */ |
| 673 | if ((last_word_end == -1) && (!isspace(inptr->data[0]))) { |
| 674 | for (i = current_word_end; i < len; i++) { |
| 675 | if (!isspace(inptr->data[i]) && i < len) { |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 676 | current_word_start = i; |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 677 | while (!isspace(inptr->data[i]) && (i < len)) { |
| 678 | i++; |
| 679 | } |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 680 | last_word_end = current_word_end; |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 681 | current_word_end = i; |
| 682 | break; |
| 683 | } |
| 684 | } |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 685 | |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 686 | if (last_word_end == -1) { |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 687 | free(temp); |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 688 | return; |
| 689 | } |
| 690 | if (current_x >= last_word_end) { |
| 691 | right = (current_x - current_word_start) + 1; |
| 692 | current_x = last_word_end; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 693 | down = 1; |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 694 | } |
| 695 | |
| 696 | temp->data = nmalloc(strlen(&inptr->data[current_word_start]) + 1); |
| 697 | strcpy(temp->data, &inptr->data[current_word_start]); |
| 698 | inptr->data = nrealloc(inptr->data, last_word_end + 2); |
| 699 | inptr->data[last_word_end + 1] = 0; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 700 | } else |
| 701 | /* Category 1b: one word on the line and word not taking up whole line |
| 702 | (i.e. there are spaces at the beginning of the line) */ |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 703 | if (last_word_end == -1) { |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 704 | temp->data = nmalloc(strlen(&inptr->data[current_word_start]) + 1); |
| 705 | strcpy(temp->data, &inptr->data[current_word_start]); |
| 706 | |
| 707 | /* Inside word, remove it from original, and move cursor to right spot. */ |
| 708 | if (current_x >= current_word_start) { |
| 709 | right = current_x - current_word_start; |
| 710 | current_x = 0; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 711 | down = 1; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 712 | } |
| 713 | |
| 714 | inptr->data = nrealloc(inptr->data, current_x + 1); |
| 715 | inptr->data[current_x] = 0; |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 716 | |
| 717 | if (ISSET(MARK_ISSET) && (mark_beginbuf == inptr)) { |
| 718 | mark_beginbuf = temp; |
| 719 | mark_beginx = 0; |
| 720 | } |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | /* Category 2: two or more words on the line. */ |
| 724 | else { |
| 725 | |
| 726 | /* Case 2a: cursor before word at wrap point. */ |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 727 | if (current_x < current_word_start) { |
| 728 | temp->data = |
| 729 | nmalloc(strlen(&inptr->data[current_word_start]) + 1); |
| 730 | strcpy(temp->data, &inptr->data[current_word_start]); |
| 731 | |
| 732 | if (!isspace(input_char)) { |
| 733 | i = current_word_start - 1; |
| 734 | while (isspace(inptr->data[i])) { |
| 735 | i--; |
| 736 | assert(i >= 0); |
| 737 | } |
| 738 | } else if (current_x <= last_word_end) |
| 739 | i = last_word_end - 1; |
| 740 | else |
| 741 | i = current_x; |
| 742 | |
| 743 | inptr->data = nrealloc(inptr->data, i + 2); |
| 744 | inptr->data[i + 1] = 0; |
| 745 | } |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 746 | |
| 747 | |
| 748 | /* Case 2b: cursor at word at wrap point. */ |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 749 | else if ((current_x >= current_word_start) |
| 750 | && (current_x <= (current_word_end + 1))) { |
| 751 | temp->data = |
| 752 | nmalloc(strlen(&inptr->data[current_word_start]) + 1); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 753 | strcpy(temp->data, &inptr->data[current_word_start]); |
| 754 | |
| 755 | down = 1; |
| 756 | |
| 757 | right = current_x - current_word_start; |
| 758 | i = current_word_start - 1; |
Adam Rogoyski | 3d449b4 | 2000-06-19 17:30:14 +0000 | [diff] [blame] | 759 | if (isspace(input_char) && (current_x == current_word_start)) { |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 760 | current_x = current_word_start; |
| 761 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 762 | inptr->data = |
| 763 | nrealloc(inptr->data, current_word_start + 1); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 764 | inptr->data[current_word_start] = 0; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 765 | } else { |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 766 | |
| 767 | while (isspace(inptr->data[i])) { |
| 768 | i--; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 769 | assert(i >= 0); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 770 | } |
| 771 | inptr->data = nrealloc(inptr->data, i + 2); |
| 772 | inptr->data[i + 1] = 0; |
| 773 | } |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 774 | } |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 775 | |
| 776 | |
| 777 | /* Case 2c: cursor past word at wrap point. */ |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 778 | else { |
| 779 | temp->data = |
| 780 | nmalloc(strlen(&inptr->data[current_word_start]) + 1); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 781 | strcpy(temp->data, &inptr->data[current_word_start]); |
| 782 | |
| 783 | down = 1; |
| 784 | right = current_x - current_word_start; |
| 785 | |
| 786 | current_x = current_word_start; |
| 787 | i = current_word_start - 1; |
| 788 | |
Adam Rogoyski | 3d449b4 | 2000-06-19 17:30:14 +0000 | [diff] [blame] | 789 | while (isspace(inptr->data[i])) { |
| 790 | i--; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 791 | assert(i >= 0); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 792 | inptr->data = nrealloc(inptr->data, i + 2); |
| 793 | inptr->data[i + 1] = 0; |
| 794 | } |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 795 | } |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 796 | } |
| 797 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 798 | /* We pre-pend wrapped part to next line. */ |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 799 | if (ISSET(SAMELINEWRAP) && inptr->next) { |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 800 | /* Plus one for the space which concatenates the two lines together plus 1 for \0. */ |
| 801 | char *p = |
| 802 | nmalloc(strlen(temp->data) + strlen(inptr->next->data) + 2); |
Adam Rogoyski | 9aeb9da | 2000-06-16 01:19:31 +0000 | [diff] [blame] | 803 | int old_x = current_x, old_y = current_y; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 804 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 805 | strcpy(p, temp->data); |
| 806 | strcat(p, " "); |
| 807 | strcat(p, inptr->next->data); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 808 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 809 | free(inptr->next->data); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 810 | inptr->next->data = p; |
| 811 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 812 | free(temp->data); |
| 813 | free(temp); |
Adam Rogoyski | 9aeb9da | 2000-06-16 01:19:31 +0000 | [diff] [blame] | 814 | |
| 815 | |
| 816 | /* The next line line may need to be wrapped as well. */ |
| 817 | current_y = old_y + 1; |
| 818 | current_x = strlen(inptr->next->data); |
| 819 | while (current_x >= 0) { |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 820 | if (isspace(inptr->next->data[current_x]) |
| 821 | && (current_x < fill)) break; |
Adam Rogoyski | 9aeb9da | 2000-06-16 01:19:31 +0000 | [diff] [blame] | 822 | current_x--; |
| 823 | } |
| 824 | if (current_x >= 0) |
| 825 | check_wrap(inptr->next, ' '); |
| 826 | |
| 827 | current_x = old_x; |
| 828 | current_y = old_y; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 829 | } |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 830 | /* Else we start a new line. */ |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 831 | else { |
| 832 | temp->prev = inptr; |
| 833 | temp->next = inptr->next; |
| 834 | |
| 835 | if (inptr->next) |
| 836 | inptr->next->prev = temp; |
| 837 | inptr->next = temp; |
| 838 | |
| 839 | if (!temp->next) |
| 840 | filebot = temp; |
| 841 | |
| 842 | SET(SAMELINEWRAP); |
| 843 | } |
| 844 | |
| 845 | |
| 846 | totlines++; |
| 847 | totsize++; |
| 848 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 849 | renumber(inptr); |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 850 | edit_update_top(edittop); |
| 851 | |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 852 | |
| 853 | /* Move the cursor to the new line if appropriate. */ |
| 854 | if (down) { |
| 855 | do_right(); |
| 856 | } |
| 857 | |
| 858 | /* Move the cursor to the correct spot in the line if appropriate. */ |
| 859 | while (right--) { |
| 860 | do_right(); |
| 861 | } |
| 862 | |
Adam Rogoyski | 0223d6f | 2000-06-17 20:36:35 +0000 | [diff] [blame] | 863 | edit_update_top(edittop); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 864 | reset_cursor(); |
| 865 | edit_refresh(); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 866 | } |
| 867 | |
| 868 | /* Check to see if we've just caused the line to wrap to a new line */ |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 869 | void check_wrap(filestruct * inptr, char ch) |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 870 | { |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 871 | int len = strlenpt(inptr->data); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 872 | #ifdef DEBUG |
| 873 | fprintf(stderr, _("check_wrap called with inptr->data=\"%s\"\n"), |
| 874 | inptr->data); |
| 875 | #endif |
| 876 | |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 877 | if (len <= fill) |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 878 | return; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 879 | else { |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 880 | int i = actual_x(inptr, fill); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 881 | |
| 882 | /* Do not wrap if there are no words on or after wrap point. */ |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 883 | int char_found = 0; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 884 | |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 885 | while (isspace(inptr->data[i]) && inptr->data[i]) |
| 886 | i++; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 887 | |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 888 | if (!inptr->data[i]) |
| 889 | return; |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 890 | |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 891 | /* String must be at least 1 character long. */ |
| 892 | for (i = strlen(inptr->data) - 1; i >= 0; i--) { |
| 893 | if (isspace(inptr->data[i])) { |
| 894 | if (!char_found) |
| 895 | continue; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 896 | char_found = 2; /* 2 for yes do wrap. */ |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 897 | break; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 898 | } else |
| 899 | char_found = 1; /* 1 for yes found a word, but must check further. */ |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 900 | } |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 901 | |
| 902 | if (char_found == 2) |
| 903 | do_wrap(inptr, ch); |
Adam Rogoyski | 77f36de | 2000-06-07 03:56:54 +0000 | [diff] [blame] | 904 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 905 | } |
| 906 | |
| 907 | /* Stuff we do when we abort from programs and want to clean up the |
| 908 | * screen. This doesnt do much right now. |
| 909 | */ |
| 910 | void do_early_abort(void) |
| 911 | { |
| 912 | blank_statusbar_refresh(); |
| 913 | } |
| 914 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 915 | void delete_buffer(filestruct * inptr) |
| 916 | { |
| 917 | if (inptr != NULL) { |
| 918 | delete_buffer(inptr->next); |
| 919 | free(inptr->data); |
| 920 | free(inptr); |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | int do_backspace(void) |
| 925 | { |
| 926 | filestruct *previous, *tmp; |
| 927 | |
| 928 | if (current_x != 0) { |
| 929 | /* Let's get dangerous */ |
| 930 | memmove(¤t->data[current_x - 1], ¤t->data[current_x], |
| 931 | strlen(current->data) - current_x + 1); |
| 932 | #ifdef DEBUG |
| 933 | fprintf(stderr, _("current->data now = \"%s\"\n"), current->data); |
| 934 | #endif |
| 935 | align(¤t->data); |
| 936 | do_left(); |
| 937 | } else { |
| 938 | if (current == fileage) |
| 939 | return 0; /* Can't delete past top of file */ |
| 940 | |
| 941 | previous = current->prev; |
| 942 | current_x = strlen(previous->data); |
| 943 | previous->data = nrealloc(previous->data, |
| 944 | strlen(previous->data) + |
| 945 | strlen(current->data) + 1); |
| 946 | strcat(previous->data, current->data); |
| 947 | |
| 948 | tmp = current; |
| 949 | unlink_node(current); |
| 950 | delete_node(current); |
| 951 | if (current == edittop) { |
| 952 | if (previous->next) |
| 953 | current = previous->next; |
| 954 | else |
| 955 | current = previous; |
| 956 | page_up(); |
| 957 | } else { |
| 958 | if (previous->next) |
| 959 | current = previous->next; |
| 960 | else |
| 961 | current = previous; |
| 962 | update_line(current, current_x); |
| 963 | } |
| 964 | |
| 965 | /* Ooops, sanity check */ |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 966 | if (tmp == filebot) { |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 967 | filebot = current; |
| 968 | editbot = current; |
Chris Allegretta | 28a0f89 | 2000-07-05 22:47:54 +0000 | [diff] [blame] | 969 | |
| 970 | /* Recreate the magic line if we're deleting it AND if the |
| 971 | line we're on now is NOT blank. if it is blank we |
| 972 | can just use IT for the magic line. This is how Pico |
| 973 | appears to do it, in any case */ |
| 974 | if (strcmp(current->data, "")) { |
| 975 | new_magicline(); |
| 976 | fix_editbot(); |
Chris Allegretta | 5537387 | 2000-07-06 22:38:37 +0000 | [diff] [blame] | 977 | totsize++; |
Chris Allegretta | 28a0f89 | 2000-07-05 22:47:54 +0000 | [diff] [blame] | 978 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 979 | } |
| 980 | |
| 981 | current = previous; |
| 982 | renumber(current); |
| 983 | previous_line(); |
| 984 | totlines--; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 985 | #ifdef DEBUG |
| 986 | fprintf(stderr, _("After, data = \"%s\"\n"), current->data); |
| 987 | #endif |
| 988 | |
| 989 | } |
| 990 | |
| 991 | totsize--; |
| 992 | set_modified(); |
| 993 | UNSET(KEEP_CUTBUFFER); |
| 994 | edit_refresh(); |
| 995 | return 1; |
| 996 | } |
| 997 | |
| 998 | int do_delete(void) |
| 999 | { |
| 1000 | filestruct *foo; |
| 1001 | |
| 1002 | if (current_x != strlen(current->data)) { |
| 1003 | /* Let's get dangerous */ |
| 1004 | memmove(¤t->data[current_x], ¤t->data[current_x + 1], |
| 1005 | strlen(current->data) - current_x); |
| 1006 | |
| 1007 | align(¤t->data); |
| 1008 | |
| 1009 | } else if (current->next != NULL) { |
| 1010 | current->data = nrealloc(current->data, |
| 1011 | strlen(current->data) + |
| 1012 | strlen(current->next->data) + 1); |
| 1013 | strcat(current->data, current->next->data); |
| 1014 | |
| 1015 | foo = current->next; |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1016 | if (filebot == foo) { |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1017 | filebot = current; |
| 1018 | editbot = current; |
| 1019 | } |
| 1020 | |
| 1021 | unlink_node(foo); |
| 1022 | delete_node(foo); |
| 1023 | update_line(current, current_x); |
| 1024 | |
Chris Allegretta | 28a0f89 | 2000-07-05 22:47:54 +0000 | [diff] [blame] | 1025 | /* Please see the comment in do_basckspace if you don't understand |
| 1026 | this test */ |
| 1027 | if (current == filebot && strcmp(current->data, "")) |
| 1028 | { |
| 1029 | new_magicline(); |
| 1030 | fix_editbot(); |
Chris Allegretta | 5537387 | 2000-07-06 22:38:37 +0000 | [diff] [blame] | 1031 | totsize++; |
Chris Allegretta | 28a0f89 | 2000-07-05 22:47:54 +0000 | [diff] [blame] | 1032 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1033 | renumber(current); |
| 1034 | totlines--; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1035 | } else |
| 1036 | return 0; |
| 1037 | |
| 1038 | totsize--; |
| 1039 | set_modified(); |
| 1040 | UNSET(KEEP_CUTBUFFER); |
| 1041 | edit_refresh(); |
| 1042 | return 1; |
| 1043 | } |
| 1044 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1045 | void wrap_reset(void) |
| 1046 | { |
| 1047 | UNSET(SAMELINEWRAP); |
| 1048 | } |
| 1049 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1050 | /* Stuff we want to do when we exit the spell program one of its many ways */ |
| 1051 | void exit_spell(char *tmpfilename, char *foo) |
| 1052 | { |
| 1053 | free(foo); |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1054 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1055 | if (remove(tmpfilename) == -1) |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1056 | statusbar(_("Error deleting tempfile, ack!")); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1057 | } |
| 1058 | |
| 1059 | /* |
| 1060 | * This is Chris' very ugly spell function. Someone please make this |
| 1061 | * better =-) |
| 1062 | */ |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1063 | int do_spell(void) |
| 1064 | { |
Chris Allegretta | 67105eb | 2000-07-03 03:18:32 +0000 | [diff] [blame] | 1065 | #ifdef NANO_SMALL |
| 1066 | nano_small_msg(); |
| 1067 | return 1; |
| 1068 | #else |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1069 | char *temp, *foo; |
Robert Siemborski | 6af1431 | 2000-07-01 21:34:26 +0000 | [diff] [blame] | 1070 | int i, size; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1071 | |
| 1072 | if ((temp = tempnam(0, "nano.")) == NULL) { |
| 1073 | statusbar(_("Could not create a temporary filename: %s"), |
| 1074 | strerror(errno)); |
| 1075 | return 0; |
| 1076 | } |
| 1077 | if (write_file(temp, 1) == -1) |
| 1078 | return 0; |
| 1079 | |
| 1080 | if (alt_speller) { |
Robert Siemborski | 6af1431 | 2000-07-01 21:34:26 +0000 | [diff] [blame] | 1081 | size = strlen(temp) + strlen(alt_speller) + 2; |
| 1082 | foo = nmalloc(size); |
| 1083 | snprintf(foo, size, "%s %s", alt_speller, temp); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1084 | } else { |
| 1085 | |
| 1086 | /* For now, we only try ispell because we're not capable of |
| 1087 | handling the normal spell program (yet...) */ |
Robert Siemborski | 6af1431 | 2000-07-01 21:34:26 +0000 | [diff] [blame] | 1088 | size = strlen(temp) + 8; |
| 1089 | foo = nmalloc(size); |
| 1090 | snprintf(foo, size, "ispell %s", temp); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1091 | } |
| 1092 | |
| 1093 | endwin(); |
| 1094 | resetty(); |
| 1095 | if (alt_speller) { |
| 1096 | if ((i = system(foo)) == -1 || i == 32512) { |
| 1097 | statusbar(_("Could not invoke spell program \"%s\""), |
| 1098 | alt_speller); |
| 1099 | exit_spell(temp, foo); |
| 1100 | return 0; |
| 1101 | } |
| 1102 | } else if ((i = system(foo)) == -1 || i == 32512) { /* Why 32512? I dont know! */ |
| 1103 | statusbar(_("Could not invoke \"ispell\"")); |
| 1104 | exit_spell(temp, foo); |
| 1105 | return 0; |
| 1106 | } |
| 1107 | initscr(); |
| 1108 | |
| 1109 | free_filestruct(fileage); |
| 1110 | global_init(); |
| 1111 | open_file(temp, 0, 1); |
| 1112 | edit_update(fileage); |
| 1113 | set_modified(); |
| 1114 | exit_spell(temp, foo); |
| 1115 | statusbar(_("Finished checking spelling")); |
| 1116 | return 1; |
Chris Allegretta | dbc12b2 | 2000-07-03 03:10:14 +0000 | [diff] [blame] | 1117 | #endif |
Chris Allegretta | 67105eb | 2000-07-03 03:18:32 +0000 | [diff] [blame] | 1118 | } |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1119 | |
| 1120 | int do_exit(void) |
| 1121 | { |
| 1122 | int i; |
| 1123 | |
| 1124 | if (!ISSET(MODIFIED)) |
| 1125 | finish(0); |
| 1126 | |
Chris Allegretta | 3088555 | 2000-07-14 01:20:12 +0000 | [diff] [blame] | 1127 | if (ISSET(TEMP_OPT)) { |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1128 | i = 1; |
| 1129 | } else { |
| 1130 | i = |
| 1131 | do_yesno(0, 0, |
| 1132 | _ |
| 1133 | ("Save modified buffer (ANSWERING \"No\" WILL DESTROY CHANGES) ? ")); |
| 1134 | } |
| 1135 | |
| 1136 | #ifdef DEBUG |
| 1137 | dump_buffer(fileage); |
| 1138 | #endif |
| 1139 | |
| 1140 | if (i == 1) { |
| 1141 | if (do_writeout(1) > 0) |
| 1142 | finish(0); |
| 1143 | } else if (i == 0) |
| 1144 | finish(0); |
| 1145 | else |
| 1146 | statusbar(_("Cancelled")); |
| 1147 | |
| 1148 | display_main_list(); |
| 1149 | return 1; |
| 1150 | } |
| 1151 | |
| 1152 | #ifndef NANO_SMALL |
| 1153 | #ifdef NCURSES_MOUSE_VERSION |
| 1154 | void do_mouse(void) |
| 1155 | { |
| 1156 | MEVENT mevent; |
| 1157 | |
| 1158 | if (getmouse(&mevent) == ERR) |
| 1159 | return; |
| 1160 | |
| 1161 | /* If mouse not in edit window, return (add help selection later). */ |
| 1162 | if (!wenclose(edit, mevent.y, mevent.x)) |
| 1163 | return; |
| 1164 | |
| 1165 | /* Subtract out size of topwin. Perhaps we need a constant somewhere? */ |
| 1166 | mevent.y -= 2; |
| 1167 | |
| 1168 | /* Selecting where the cursor is sets the mark. |
| 1169 | * Selecting beyond the line length with the cursor at the end of the |
| 1170 | * line sets the mark as well. |
| 1171 | */ |
| 1172 | if ((mevent.y == current_y) && |
| 1173 | ((mevent.x == current_x) || (current_x == strlen(current->data) |
| 1174 | && (mevent.x > |
| 1175 | strlen(current->data))))) { |
| 1176 | if (ISSET(VIEW_MODE)) { |
| 1177 | print_view_warning(); |
| 1178 | return; |
| 1179 | } |
| 1180 | do_mark(); |
| 1181 | } else if (mevent.y > current_y) { |
| 1182 | while (mevent.y > current_y) { |
| 1183 | if (current->next != NULL) |
| 1184 | current = current->next; |
| 1185 | else |
| 1186 | break; |
| 1187 | current_y++; |
| 1188 | } |
| 1189 | } else if (mevent.y < current_y) { |
| 1190 | while (mevent.y < current_y) { |
| 1191 | if (current->prev != NULL) |
| 1192 | current = current->prev; |
| 1193 | else |
| 1194 | break; |
| 1195 | current_y--; |
| 1196 | } |
| 1197 | } |
| 1198 | current_x = mevent.x; |
| 1199 | if (current_x > strlen(current->data)) |
| 1200 | current_x = strlen(current->data); |
| 1201 | |
| 1202 | update_cursor(); |
| 1203 | edit_refresh(); |
| 1204 | |
| 1205 | } |
| 1206 | #endif |
| 1207 | #endif |
| 1208 | |
| 1209 | /* Handler for SIGHUP */ |
| 1210 | RETSIGTYPE handle_hup(int signal) |
| 1211 | { |
| 1212 | write_file("nano.save", 0); |
| 1213 | finish(1); |
| 1214 | } |
| 1215 | |
| 1216 | |
| 1217 | void handle_sigwinch(int s) |
| 1218 | { |
| 1219 | #ifndef NANO_SMALL |
| 1220 | char *tty = NULL; |
| 1221 | int fd = 0; |
| 1222 | int result = 0; |
| 1223 | int i = 0; |
| 1224 | struct winsize win; |
| 1225 | |
| 1226 | tty = ttyname(0); |
| 1227 | if (!tty) |
| 1228 | return; |
| 1229 | fd = open(tty, O_RDWR); |
| 1230 | if (fd == -1) |
| 1231 | return; |
| 1232 | result = ioctl(fd, TIOCGWINSZ, &win); |
| 1233 | if (result == -1) |
| 1234 | return; |
| 1235 | |
| 1236 | |
| 1237 | COLS = win.ws_col; |
| 1238 | LINES = win.ws_row; |
| 1239 | |
| 1240 | center_x = COLS / 2; |
| 1241 | center_y = LINES / 2; |
| 1242 | editwinrows = LINES - 5 + no_help(); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1243 | fill = COLS - 8; |
| 1244 | |
| 1245 | free(hblank); |
| 1246 | hblank = nmalloc(COLS + 1); |
| 1247 | |
| 1248 | for (i = 0; i <= COLS - 1; i++) |
| 1249 | hblank[i] = ' '; |
| 1250 | hblank[i] = 0; |
| 1251 | |
| 1252 | #ifdef HAVE_NCURSES_H |
| 1253 | resizeterm(LINES, COLS); |
| 1254 | #ifdef HAVE_WRESIZE |
| 1255 | if (wresize(topwin, 2, COLS) == ERR) |
| 1256 | die(_("Cannot resize top win")); |
| 1257 | if (mvwin(topwin, 0, 0) == ERR) |
| 1258 | die(_("Cannot move top win")); |
| 1259 | if (wresize(edit, editwinrows, COLS) == ERR) |
| 1260 | die(_("Cannot resize edit win")); |
| 1261 | if (mvwin(edit, 2, 0) == ERR) |
| 1262 | die(_("Cannot move edit win")); |
| 1263 | if (wresize(bottomwin, 3 - no_help(), COLS) == ERR) |
| 1264 | die(_("Cannot resize bottom win")); |
| 1265 | if (mvwin(bottomwin, LINES - 3 + no_help(), 0) == ERR) |
| 1266 | die(_("Cannot move bottom win")); |
| 1267 | #endif /* HAVE_WRESIZE */ |
| 1268 | #endif /* HAVE_NCURSES_H */ |
| 1269 | |
Robert Siemborski | dd53ec2 | 2000-07-04 02:35:19 +0000 | [diff] [blame] | 1270 | fix_editbot(); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1271 | |
Chris Allegretta | bceb1b2 | 2000-06-19 04:22:15 +0000 | [diff] [blame] | 1272 | if (current_y > editwinrows - 1) { |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1273 | edit_update(editbot); |
| 1274 | } |
| 1275 | erase(); |
Chris Allegretta | 97accc6 | 2000-06-19 05:45:52 +0000 | [diff] [blame] | 1276 | |
| 1277 | /* Do these b/c width may have changed... */ |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1278 | refresh(); |
Chris Allegretta | 97accc6 | 2000-06-19 05:45:52 +0000 | [diff] [blame] | 1279 | titlebar(); |
| 1280 | edit_refresh(); |
| 1281 | display_main_list(); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1282 | total_refresh(); |
| 1283 | #endif |
| 1284 | } |
| 1285 | |
| 1286 | int do_tab(void) |
| 1287 | { |
| 1288 | do_char('\t'); |
| 1289 | return 1; |
| 1290 | } |
| 1291 | |
| 1292 | #ifndef NANO_SMALL |
| 1293 | int empty_line(const char *data) |
| 1294 | { |
| 1295 | while (*data) { |
| 1296 | if (!isspace(*data)) |
| 1297 | return 0; |
| 1298 | |
| 1299 | data++; |
| 1300 | } |
| 1301 | |
| 1302 | return 1; |
| 1303 | } |
| 1304 | |
| 1305 | int no_spaces(const char *data) |
| 1306 | { |
| 1307 | while (*data) { |
| 1308 | if (isspace(*data)) |
| 1309 | return 0; |
| 1310 | |
| 1311 | data++; |
| 1312 | } |
| 1313 | |
| 1314 | return 1; |
| 1315 | } |
| 1316 | |
| 1317 | void justify_format(char *data) |
| 1318 | { |
| 1319 | int i = 0; |
| 1320 | int len = strlen(data); |
| 1321 | |
| 1322 | /* Skip first character regardless and leading whitespace. */ |
| 1323 | for (i = 1; i < len; i++) { |
| 1324 | if (!isspace(data[i])) |
| 1325 | break; |
| 1326 | } |
| 1327 | |
| 1328 | i++; /* (i) is now at least 2. */ |
| 1329 | |
| 1330 | /* No double spaces allowed unless following a period. Tabs -> space. No double tabs. */ |
| 1331 | for (; i < len; i++) { |
| 1332 | if (isspace(data[i]) && isspace(data[i - 1]) |
| 1333 | && (data[i - 2] != '.')) { |
| 1334 | memmove(data + i, data + i + 1, len - i); |
| 1335 | len--; |
| 1336 | i--; |
| 1337 | } |
| 1338 | } |
| 1339 | } |
| 1340 | #endif |
| 1341 | |
| 1342 | int do_justify(void) |
| 1343 | { |
| 1344 | #ifndef NANO_SMALL |
| 1345 | int slen = 0; /* length of combined lines on one line. */ |
| 1346 | int initial_y; |
| 1347 | filestruct *initial = NULL; |
| 1348 | |
| 1349 | if (empty_line(current->data)) { |
| 1350 | /* Justify starting at first non-empty line. */ |
| 1351 | do { |
| 1352 | if (!current->next) |
| 1353 | return 1; |
| 1354 | |
| 1355 | current = current->next; |
| 1356 | current_y++; |
| 1357 | } |
| 1358 | while (empty_line(current->data)); |
| 1359 | } else { |
| 1360 | /* Search back for the beginning of the paragraph, where |
| 1361 | * Paragraph is 1) A line with leading whitespace |
| 1362 | * or 2) A line following an empty line. |
| 1363 | */ |
| 1364 | while (current->prev != NULL) { |
| 1365 | if (isspace(current->data[0]) || !current->data[0]) |
| 1366 | break; |
| 1367 | |
| 1368 | current = current->prev; |
| 1369 | current_y--; |
| 1370 | } |
| 1371 | |
| 1372 | /* First line with leading whitespace may be empty. */ |
| 1373 | if (empty_line(current->data)) { |
| 1374 | if (current->next) { |
| 1375 | current = current->next; |
| 1376 | current_y++; |
| 1377 | } else |
| 1378 | return 1; |
| 1379 | } |
| 1380 | } |
| 1381 | initial = current; |
| 1382 | initial_y = current_y; |
| 1383 | |
| 1384 | set_modified(); |
| 1385 | /* Put the whole paragraph into one big line. */ |
| 1386 | while (current->next && !isspace(current->next->data[0]) |
| 1387 | && current->next->data[0]) { |
| 1388 | filestruct *tmpnode = current->next; |
| 1389 | int len = strlen(current->data); |
| 1390 | int len2 = strlen(current->next->data); |
| 1391 | |
| 1392 | /* length of both strings plus space between strings and ending \0. */ |
| 1393 | current->data = nrealloc(current->data, len + len2 + 2); |
| 1394 | current->data[len++] = ' '; |
| 1395 | current->data[len] = '\0'; |
| 1396 | |
| 1397 | strncat(current->data, current->next->data, len2); |
| 1398 | |
| 1399 | unlink_node(tmpnode); |
| 1400 | delete_node(tmpnode); |
| 1401 | |
| 1402 | } |
| 1403 | |
| 1404 | justify_format(current->data); |
| 1405 | |
| 1406 | slen = strlen(current->data); |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 1407 | while ((strlenpt(current->data) > (fill)) |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1408 | && !no_spaces(current->data)) { |
| 1409 | int i = 0; |
| 1410 | int len2 = 0; |
| 1411 | filestruct *tmpline = nmalloc(sizeof(filestruct)); |
| 1412 | |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 1413 | /* Start at fill , unless line isn't that long (but it appears at least |
| 1414 | * fill long with tabs. |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1415 | */ |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 1416 | if (slen > fill) |
| 1417 | i = fill; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1418 | else |
| 1419 | i = slen; |
| 1420 | for (; i > 0; i--) { |
| 1421 | if (isspace(current->data[i]) && |
| 1422 | ((strlenpt(current->data) - strlen(current->data + i)) <= |
| 1423 | fill)) break; |
| 1424 | } |
| 1425 | if (!i) |
| 1426 | break; |
| 1427 | |
| 1428 | current->data[i] = '\0'; |
| 1429 | |
| 1430 | len2 = strlen(current->data + i + 1); |
| 1431 | tmpline->data = nmalloc(len2 + 1); |
| 1432 | |
| 1433 | /* Skip the white space in current. */ |
| 1434 | memcpy(tmpline->data, current->data + i + 1, len2); |
| 1435 | tmpline->data[len2] = '\0'; |
| 1436 | |
| 1437 | current->data = nrealloc(current->data, i + 1); |
| 1438 | |
| 1439 | tmpline->prev = current; |
| 1440 | tmpline->next = current->next; |
| 1441 | if (current->next != NULL) |
| 1442 | current->next->prev = tmpline; |
| 1443 | |
| 1444 | current->next = tmpline; |
| 1445 | current = tmpline; |
| 1446 | slen -= i + 1; |
| 1447 | current_y++; |
| 1448 | } |
| 1449 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1450 | |
| 1451 | if (current->next) |
| 1452 | current = current->next; |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 1453 | else |
| 1454 | filebot = current; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1455 | current_x = 0; |
| 1456 | placewewant = 0; |
| 1457 | |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 1458 | renumber(initial); |
| 1459 | totlines = filebot->lineno; |
| 1460 | |
| 1461 | werase(edit); |
| 1462 | |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1463 | if ((current_y < 0) || (current_y >= editwinrows - 1) |
| 1464 | || (initial_y <= 0)) { |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1465 | edit_update(current); |
| 1466 | center_cursor(); |
| 1467 | } else { |
Robert Siemborski | dd53ec2 | 2000-07-04 02:35:19 +0000 | [diff] [blame] | 1468 | fix_editbot(); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1469 | } |
| 1470 | |
Adam Rogoyski | 09f9796 | 2000-06-20 02:50:33 +0000 | [diff] [blame] | 1471 | |
| 1472 | edit_refresh(); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1473 | statusbar("Justify Complete"); |
| 1474 | return 1; |
| 1475 | #else |
| 1476 | nano_small_msg(); |
| 1477 | return 1; |
| 1478 | #endif |
| 1479 | } |
| 1480 | |
| 1481 | |
| 1482 | void help_init(void) |
| 1483 | { |
| 1484 | int i, sofar = 0; |
| 1485 | long allocsize = 1; /* How much space we're gonna need for the help text */ |
| 1486 | char buf[BUFSIZ]; |
| 1487 | |
| 1488 | /* Compute the space needed for the shortcut lists - we add 15 to |
| 1489 | have room for the shortcut abbrev and its possible alternate keys */ |
| 1490 | for (i = 0; i < MAIN_LIST_LEN; i++) |
| 1491 | if (main_list[i].help != NULL) |
| 1492 | allocsize += strlen(main_list[i].help) + 15; |
| 1493 | |
| 1494 | allocsize += strlen(help_text_init); |
| 1495 | |
| 1496 | if (help_text != NULL) |
| 1497 | free(help_text); |
| 1498 | |
| 1499 | /* Allocate space for the help text */ |
| 1500 | help_text = nmalloc(allocsize); |
| 1501 | |
| 1502 | /* Now add the text we want */ |
| 1503 | strcpy(help_text, help_text_init); |
| 1504 | |
| 1505 | /* Now add our shortcut info */ |
| 1506 | for (i = 0; i < MAIN_LIST_LEN; i++) { |
Robert Siemborski | 6af1431 | 2000-07-01 21:34:26 +0000 | [diff] [blame] | 1507 | sofar = snprintf(buf, BUFSIZ, "^%c ", main_list[i].val + 64); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1508 | |
| 1509 | if (main_list[i].misc1 > KEY_F0 && main_list[i].misc1 <= KEY_F(64)) |
Robert Siemborski | 6af1431 | 2000-07-01 21:34:26 +0000 | [diff] [blame] | 1510 | sofar += snprintf(&buf[sofar], BUFSIZ - sofar, "(F%d) ", |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1511 | main_list[i].misc1 - KEY_F0); |
| 1512 | else |
Robert Siemborski | 6af1431 | 2000-07-01 21:34:26 +0000 | [diff] [blame] | 1513 | sofar += snprintf(&buf[sofar], BUFSIZ - sofar, " "); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1514 | |
| 1515 | if (main_list[i].altval > 0) |
Robert Siemborski | 6af1431 | 2000-07-01 21:34:26 +0000 | [diff] [blame] | 1516 | sofar += snprintf(&buf[sofar], BUFSIZ - sofar, "(@%c) ", |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1517 | main_list[i].altval - 32); |
| 1518 | else |
Robert Siemborski | 6af1431 | 2000-07-01 21:34:26 +0000 | [diff] [blame] | 1519 | sofar += snprintf(&buf[sofar], BUFSIZ - sofar, " "); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1520 | |
| 1521 | if (main_list[i].help != NULL) |
Robert Siemborski | 976847c | 2000-07-06 03:43:05 +0000 | [diff] [blame] | 1522 | snprintf(&buf[sofar], BUFSIZ - sofar, "%s", main_list[i].help); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1523 | |
| 1524 | strcat(help_text, buf); |
Robert Siemborski | 976847c | 2000-07-06 03:43:05 +0000 | [diff] [blame] | 1525 | strcat(help_text, "\n"); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1526 | } |
| 1527 | |
| 1528 | } |
| 1529 | |
| 1530 | int main(int argc, char *argv[]) |
| 1531 | { |
| 1532 | int optchr; |
| 1533 | int kbinput; /* Input from keyboard */ |
| 1534 | long startline = 0; /* Line to try and start at */ |
| 1535 | struct sigaction act; /* For our lovely signals */ |
| 1536 | int keyhandled = 0; /* Have we handled the keystroke yet? */ |
| 1537 | int tmpkey = 0, i; |
Chris Allegretta | 6724a7e | 2000-06-19 23:19:07 +0000 | [diff] [blame] | 1538 | #ifdef HAVE_TABSIZE |
| 1539 | int usrtabsize = 0; /* User defined tab size */ |
| 1540 | #endif |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1541 | char *argv0; |
| 1542 | struct termios term; |
| 1543 | |
| 1544 | #ifdef HAVE_GETOPT_LONG |
| 1545 | int option_index = 0; |
| 1546 | struct option long_options[] = { |
Chris Allegretta | 4780561 | 2000-07-07 02:35:34 +0000 | [diff] [blame] | 1547 | #ifdef _POSIX_VERSION |
Chris Allegretta | 9fc8d43 | 2000-07-07 01:49:52 +0000 | [diff] [blame] | 1548 | {"regexp", 0, 0, 'R'}, |
Chris Allegretta | 4780561 | 2000-07-07 02:35:34 +0000 | [diff] [blame] | 1549 | #endif |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1550 | {"version", 0, 0, 'V'}, |
| 1551 | {"const", 0, 0, 'c'}, |
| 1552 | {"suspend", 0, 0, 'z'}, |
| 1553 | {"nowrap", 0, 0, 'w'}, |
| 1554 | {"nohelp", 0, 0, 'x'}, |
| 1555 | {"help", 0, 0, 'h'}, |
Chris Allegretta | d19e991 | 2000-07-12 18:14:51 +0000 | [diff] [blame] | 1556 | #ifndef NANO_SMALL |
Chris Allegretta | 627de19 | 2000-07-12 02:09:17 +0000 | [diff] [blame] | 1557 | {"cut", 0, 0, 'k'}, |
Chris Allegretta | d19e991 | 2000-07-12 18:14:51 +0000 | [diff] [blame] | 1558 | #endif |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1559 | {"autoindent", 0, 0, 'i'}, |
| 1560 | {"tempfile", 0, 0, 't'}, |
| 1561 | {"speller", 1, 0, 's'}, |
| 1562 | {"fill", 1, 0, 'r'}, |
| 1563 | {"mouse", 0, 0, 'm'}, |
| 1564 | {"pico", 0, 0, 'p'}, |
| 1565 | {"nofollow", 0, 0, 'l'}, |
Chris Allegretta | 6724a7e | 2000-06-19 23:19:07 +0000 | [diff] [blame] | 1566 | #ifdef HAVE_TABSIZE |
| 1567 | {"tabsize", 0, 0, 'T'}, |
| 1568 | #endif |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1569 | {0, 0, 0, 0} |
| 1570 | }; |
| 1571 | #endif |
| 1572 | |
| 1573 | /* Flag inits... */ |
| 1574 | SET(FOLLOW_SYMLINKS); |
| 1575 | |
| 1576 | #ifndef NANO_SMALL |
| 1577 | setlocale(LC_ALL, ""); |
| 1578 | bindtextdomain(PACKAGE, LOCALEDIR); |
| 1579 | textdomain(PACKAGE); |
| 1580 | #endif |
| 1581 | |
| 1582 | #ifdef HAVE_GETOPT_LONG |
Chris Allegretta | 627de19 | 2000-07-12 02:09:17 +0000 | [diff] [blame] | 1583 | while ((optchr = getopt_long(argc, argv, "?T:RVchiklmpr:s:tvwxz", |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1584 | long_options, &option_index)) != EOF) { |
| 1585 | #else |
Chris Allegretta | 627de19 | 2000-07-12 02:09:17 +0000 | [diff] [blame] | 1586 | while ((optchr = getopt(argc, argv, "h?T:RVciklmpr:s:tvwxz")) != EOF) { |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1587 | #endif |
| 1588 | |
| 1589 | switch (optchr) { |
Chris Allegretta | 6724a7e | 2000-06-19 23:19:07 +0000 | [diff] [blame] | 1590 | #ifdef HAVE_TABSIZE |
| 1591 | case 'T': |
| 1592 | usrtabsize = atoi(optarg); |
| 1593 | if (usrtabsize <= 0) { |
| 1594 | usage(); /* To stop bogus data for tab width */ |
| 1595 | finish(1); |
| 1596 | } |
| 1597 | break; |
| 1598 | #else |
| 1599 | case 'T': |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1600 | usage(); /* Oops! You dont really have that option */ |
Chris Allegretta | 6724a7e | 2000-06-19 23:19:07 +0000 | [diff] [blame] | 1601 | finish(1); |
| 1602 | #endif |
Chris Allegretta | 4780561 | 2000-07-07 02:35:34 +0000 | [diff] [blame] | 1603 | #ifdef _POSIX_VERSION |
Chris Allegretta | 9fc8d43 | 2000-07-07 01:49:52 +0000 | [diff] [blame] | 1604 | case 'R': |
| 1605 | SET(USE_REGEXP); |
| 1606 | break; |
Chris Allegretta | 4780561 | 2000-07-07 02:35:34 +0000 | [diff] [blame] | 1607 | #endif |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1608 | case 'V': |
| 1609 | version(); |
| 1610 | exit(0); |
| 1611 | case 'c': |
| 1612 | SET(CONSTUPDATE); |
| 1613 | break; |
| 1614 | case 'h': |
| 1615 | case '?': |
| 1616 | usage(); |
| 1617 | exit(0); |
| 1618 | case 'i': |
| 1619 | SET(AUTOINDENT); |
| 1620 | break; |
Chris Allegretta | d19e991 | 2000-07-12 18:14:51 +0000 | [diff] [blame] | 1621 | #ifndef NANO_SMALL |
Chris Allegretta | 627de19 | 2000-07-12 02:09:17 +0000 | [diff] [blame] | 1622 | case 'k': |
| 1623 | SET(CUT_TO_END); |
| 1624 | break; |
Chris Allegretta | d19e991 | 2000-07-12 18:14:51 +0000 | [diff] [blame] | 1625 | #endif |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1626 | case 'l': |
| 1627 | UNSET(FOLLOW_SYMLINKS); |
| 1628 | break; |
| 1629 | case 'm': |
| 1630 | SET(USE_MOUSE); |
| 1631 | break; |
| 1632 | case 'p': |
| 1633 | SET(PICO_MSGS); |
| 1634 | break; |
| 1635 | case 'r': |
| 1636 | fill = atoi(optarg); |
| 1637 | if (fill <= 0) { |
| 1638 | usage(); /* To stop bogus data (like a string) */ |
| 1639 | finish(1); |
| 1640 | } |
| 1641 | break; |
| 1642 | case 's': |
| 1643 | alt_speller = nmalloc(strlen(optarg) + 1); |
| 1644 | strcpy(alt_speller, optarg); |
| 1645 | break; |
| 1646 | case 't': |
Chris Allegretta | 3088555 | 2000-07-14 01:20:12 +0000 | [diff] [blame] | 1647 | SET(TEMP_OPT); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1648 | break; |
| 1649 | case 'v': |
| 1650 | SET(VIEW_MODE); |
| 1651 | break; |
| 1652 | case 'w': |
| 1653 | SET(NO_WRAP); |
| 1654 | break; |
| 1655 | case 'x': |
| 1656 | SET(NO_HELP); |
| 1657 | break; |
| 1658 | case 'z': |
| 1659 | SET(SUSPEND); |
| 1660 | break; |
| 1661 | default: |
| 1662 | usage(); |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1663 | exit(0); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1664 | } |
| 1665 | |
| 1666 | } |
| 1667 | |
| 1668 | argv0 = strrchr(argv[0], '/'); |
| 1669 | if ((argv0 && strstr(argv0, "pico")) |
| 1670 | || (!argv0 && strstr(argv[0], "pico"))) |
| 1671 | SET(PICO_MSGS); |
| 1672 | |
| 1673 | filename = nmalloc(PATH_MAX); |
| 1674 | strcpy(filename, ""); |
| 1675 | |
| 1676 | /* See if there's a non-option in argv (first non-option is the |
| 1677 | filename, if +LINE is not given) */ |
| 1678 | if (argc == 1 || argc <= optind) |
| 1679 | strcpy(filename, ""); |
| 1680 | else { |
| 1681 | /* Look for the +line flag... */ |
| 1682 | if (argv[optind][0] == '+') { |
| 1683 | startline = atoi(&argv[optind][1]); |
| 1684 | optind++; |
| 1685 | if (argc == 1 || argc <= optind) |
| 1686 | strcpy(filename, ""); |
| 1687 | else |
| 1688 | strncpy(filename, argv[optind], 132); |
| 1689 | } else |
| 1690 | strncpy(filename, argv[optind], 132); |
| 1691 | |
| 1692 | } |
| 1693 | |
| 1694 | |
| 1695 | /* First back up the old settings so they can be restored, duh */ |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1696 | tcgetattr(0, &oldterm); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1697 | |
| 1698 | /* Adam's code to blow away intr character so ^C can show cursor pos */ |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1699 | tcgetattr(0, &term); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1700 | for (i = 0; i < NCCS; i++) { |
| 1701 | if (term.c_cc[i] == CINTR || term.c_cc[i] == CQUIT) |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1702 | term.c_cc[i] = 0; |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1703 | } |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1704 | tcsetattr(0, TCSANOW, &term); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1705 | |
| 1706 | /* now ncurses init stuff... */ |
| 1707 | initscr(); |
| 1708 | savetty(); |
| 1709 | nonl(); |
| 1710 | cbreak(); |
| 1711 | noecho(); |
| 1712 | timeout(0); |
| 1713 | |
| 1714 | /* Set up some global variables */ |
| 1715 | global_init(); |
| 1716 | shortcut_init(); |
| 1717 | init_help_msg(); |
| 1718 | help_init(); |
| 1719 | |
| 1720 | /* Trap SIGINT and SIGQUIT cuz we want them to do useful things. */ |
Chris Allegretta | 4da1fc6 | 2000-06-21 03:00:43 +0000 | [diff] [blame] | 1721 | memset(&act, 0, sizeof(struct sigaction)); |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1722 | act.sa_handler = SIG_IGN; |
| 1723 | sigaction(SIGINT, &act, NULL); |
| 1724 | sigaction(SIGQUIT, &act, NULL); |
| 1725 | |
| 1726 | if (!ISSET(SUSPEND)) |
| 1727 | sigaction(SIGTSTP, &act, NULL); |
| 1728 | |
| 1729 | /* Trap SIGHUP cuz we want to write the file out. */ |
| 1730 | act.sa_handler = handle_hup; |
| 1731 | sigaction(SIGHUP, &act, NULL); |
| 1732 | |
| 1733 | act.sa_handler = handle_sigwinch; |
| 1734 | sigaction(SIGWINCH, &act, NULL); |
| 1735 | |
| 1736 | #ifdef DEBUG |
| 1737 | fprintf(stderr, _("Main: set up windows\n")); |
| 1738 | #endif |
| 1739 | |
| 1740 | /* Setup up the main text window */ |
| 1741 | edit = newwin(editwinrows, COLS, 2, 0); |
| 1742 | keypad(edit, TRUE); |
| 1743 | |
| 1744 | #ifndef NANO_SMALL |
| 1745 | #ifdef NCURSES_MOUSE_VERSION |
| 1746 | if (ISSET(USE_MOUSE)) { |
| 1747 | mousemask(BUTTON1_RELEASED, NULL); |
| 1748 | mouseinterval(50); |
| 1749 | } |
| 1750 | #endif |
| 1751 | #endif |
| 1752 | |
| 1753 | /* And the other windows */ |
| 1754 | topwin = newwin(2, COLS, 0, 0); |
| 1755 | bottomwin = newwin(3 - no_help(), COLS, LINES - 3 + no_help(), 0); |
| 1756 | keypad(bottomwin, TRUE); |
| 1757 | |
| 1758 | #ifdef DEBUG |
| 1759 | fprintf(stderr, _("Main: bottom win\n")); |
| 1760 | #endif |
| 1761 | /* Set up up bottom of window */ |
| 1762 | display_main_list(); |
| 1763 | |
| 1764 | #ifdef DEBUG |
| 1765 | fprintf(stderr, _("Main: open file\n")); |
| 1766 | #endif |
| 1767 | |
| 1768 | titlebar(); |
| 1769 | if (argc == 1) |
| 1770 | new_file(); |
| 1771 | else |
| 1772 | open_file(filename, 0, 0); |
| 1773 | |
| 1774 | if (startline > 0) |
| 1775 | do_gotoline(startline); |
| 1776 | else |
| 1777 | edit_update(fileage); |
| 1778 | |
Chris Allegretta | 6724a7e | 2000-06-19 23:19:07 +0000 | [diff] [blame] | 1779 | #ifdef HAVE_TABSIZE |
| 1780 | if (usrtabsize > 0) |
| 1781 | TABSIZE = usrtabsize; |
| 1782 | #endif |
| 1783 | |
Robert Siemborski | 6967eec | 2000-07-08 14:23:32 +0000 | [diff] [blame] | 1784 | edit_refresh(); |
| 1785 | reset_cursor(); |
| 1786 | |
Chris Allegretta | a2ea193 | 2000-06-06 05:53:49 +0000 | [diff] [blame] | 1787 | while (1) { |
| 1788 | kbinput = wgetch(edit); |
| 1789 | if (kbinput == 27) { /* Grab Alt-key stuff first */ |
| 1790 | switch (kbinput = wgetch(edit)) { |
| 1791 | case 91: |
| 1792 | |
| 1793 | switch (kbinput = wgetch(edit)) { |
| 1794 | case 'A': |
| 1795 | kbinput = KEY_UP; |
| 1796 | break; |
| 1797 | case 'B': |
| 1798 | kbinput = KEY_DOWN; |
| 1799 | break; |
| 1800 | case 'C': |
| 1801 | kbinput = KEY_RIGHT; |
| 1802 | break; |
| 1803 | case 'D': |
| 1804 | kbinput = KEY_LEFT; |
| 1805 | break; |
| 1806 | case 'H': |
| 1807 | kbinput = KEY_HOME; |
| 1808 | break; |
| 1809 | case 'F': |
| 1810 | kbinput = KEY_END; |
| 1811 | break; |
| 1812 | case 49: /* X window F-keys */ |
| 1813 | tmpkey = wgetch(edit); |
| 1814 | kbinput = KEY_F(tmpkey) - 48; |
| 1815 | wgetch(edit); /* Junk character */ |
| 1816 | break; |
| 1817 | case 53: /* page up */ |
| 1818 | kbinput = KEY_PPAGE; |
| 1819 | if ((kbinput = wgetch(edit)) == 126) |
| 1820 | kbinput = KEY_PPAGE; /* Ignore extra tilde */ |
| 1821 | else { /* I guess this could happen ;-) */ |
| 1822 | ungetch(kbinput); |
| 1823 | continue; |
| 1824 | } |
| 1825 | break; |
| 1826 | case 54: /* page down */ |
| 1827 | kbinput = KEY_NPAGE; |
| 1828 | if ((kbinput = wgetch(edit)) == 126) |
| 1829 | kbinput = KEY_NPAGE; /* Same thing here */ |
| 1830 | else { |
| 1831 | ungetch(kbinput); |
| 1832 | continue; |
| 1833 | } |
| 1834 | break; |
| 1835 | |
| 1836 | default: |
| 1837 | #ifdef DEBUG |
| 1838 | fprintf(stderr, _("I got Alt-[-%c! (%d)\n"), |
| 1839 | kbinput, kbinput); |
| 1840 | #endif |
| 1841 | break; |
| 1842 | } |
| 1843 | break; |
| 1844 | default: |
| 1845 | |
| 1846 | /* Check for the altkey defs.... */ |
| 1847 | for (i = 0; i <= MAIN_LIST_LEN - 1; i++) |
| 1848 | if (kbinput == main_list[i].altval || |
| 1849 | kbinput == main_list[i].altval - 32) { |
| 1850 | kbinput = main_list[i].val; |
| 1851 | break; |
| 1852 | } |
| 1853 | #ifdef DEBUG |
| 1854 | fprintf(stderr, _("I got Alt-%c! (%d)\n"), kbinput, |
| 1855 | kbinput); |
| 1856 | #endif |
| 1857 | break; |
| 1858 | } |
| 1859 | } |
| 1860 | /* Look through the main shortcut list to see if we've hit a |
| 1861 | shortcut key */ |
| 1862 | for (i = 0; i < MAIN_LIST_LEN; i++) { |
| 1863 | if (kbinput == main_list[i].val || |
| 1864 | (main_list[i].misc1 && kbinput == main_list[i].misc1) || |
| 1865 | (main_list[i].misc2 && kbinput == main_list[i].misc2)) { |
| 1866 | if (ISSET(VIEW_MODE) && !main_list[i].viewok) |
| 1867 | print_view_warning(); |
| 1868 | else |
| 1869 | main_list[i].func(); |
| 1870 | keyhandled = 1; |
| 1871 | } |
| 1872 | } |
| 1873 | /* Last gasp, stuff that's not in the main lists */ |
| 1874 | if (!keyhandled) |
| 1875 | switch (kbinput) { |
| 1876 | #ifndef NANO_SMALL |
| 1877 | #ifdef NCURSES_MOUSE_VERSION |
| 1878 | case KEY_MOUSE: |
| 1879 | do_mouse(); |
| 1880 | break; |
| 1881 | #endif |
| 1882 | #endif |
| 1883 | case 0: /* Erg */ |
| 1884 | do_next_word(); |
| 1885 | break; |
| 1886 | case 331: /* Stuff that we don't want to do squat */ |
| 1887 | case -1: |
| 1888 | case 410: /* Must ignore this, it gets sent when we resize */ |
| 1889 | break; |
| 1890 | default: |
| 1891 | #ifdef DEBUG |
| 1892 | fprintf(stderr, "I got %c (%d)!\n", kbinput, kbinput); |
| 1893 | #endif |
| 1894 | /* We no longer stop unhandled sequences so that people with |
| 1895 | odd character sets can type... */ |
| 1896 | |
| 1897 | if (ISSET(VIEW_MODE)) { |
| 1898 | print_view_warning(); |
| 1899 | break; |
| 1900 | } |
| 1901 | do_char(kbinput); |
| 1902 | } |
| 1903 | if (ISSET(CONSTUPDATE)) |
| 1904 | do_cursorpos(); |
| 1905 | |
| 1906 | reset_cursor(); |
| 1907 | wrefresh(edit); |
| 1908 | keyhandled = 0; |
| 1909 | } |
| 1910 | |
| 1911 | getchar(); |
| 1912 | finish(0); |
| 1913 | |
| 1914 | } |