David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /************************************************************************** |
David Lawrence Ramsey | 4005fc6 | 2005-10-08 06:12:41 +0000 | [diff] [blame] | 3 | * text.c * |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 4 | * * |
David Lawrence Ramsey | 315eb32 | 2005-11-28 19:35:29 +0000 | [diff] [blame] | 5 | * Copyright (C) 1999-2004 Chris Allegretta * |
David Lawrence Ramsey | 33f2a08 | 2006-02-07 21:11:49 +0000 | [diff] [blame] | 6 | * Copyright (C) 2005-2006 David Lawrence Ramsey * |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 7 | * This program is free software; you can redistribute it and/or modify * |
| 8 | * it under the terms of the GNU General Public License as published by * |
| 9 | * the Free Software Foundation; either version 2, or (at your option) * |
| 10 | * any later version. * |
| 11 | * * |
| 12 | * This program is distributed in the hope that it will be useful, but * |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * |
| 15 | * General Public License for more details. * |
| 16 | * * |
| 17 | * You should have received a copy of the GNU General Public License * |
| 18 | * along with this program; if not, write to the Free Software * |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * |
| 20 | * 02110-1301, USA. * |
| 21 | * * |
| 22 | **************************************************************************/ |
| 23 | |
David Lawrence Ramsey | 034b994 | 2005-12-08 02:47:10 +0000 | [diff] [blame] | 24 | #include "proto.h" |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 25 | |
David Lawrence Ramsey | ee11c6a | 2005-11-02 19:42:02 +0000 | [diff] [blame] | 26 | #include <stdio.h> |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 27 | #include <signal.h> |
| 28 | #include <unistd.h> |
| 29 | #include <string.h> |
| 30 | #include <fcntl.h> |
| 31 | #include <sys/wait.h> |
| 32 | #include <errno.h> |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 33 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 34 | #ifndef NANO_TINY |
David Lawrence Ramsey | 8779a17 | 2005-11-08 16:45:22 +0000 | [diff] [blame] | 35 | static pid_t pid = -1; |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 36 | /* The PID of the forked process in execute_command(), for use |
| 37 | * with the cancel_command() signal handler. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 38 | #endif |
| 39 | #ifndef DISABLE_WRAPPING |
David Lawrence Ramsey | b4e5c02 | 2005-11-25 13:48:09 +0000 | [diff] [blame] | 40 | static bool prepend_wrap = FALSE; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 41 | /* Should we prepend wrapped text to the next line? */ |
| 42 | #endif |
| 43 | #ifndef DISABLE_JUSTIFY |
| 44 | static filestruct *jusbottom = NULL; |
David Lawrence Ramsey | ae4c3a6 | 2005-09-20 19:46:39 +0000 | [diff] [blame] | 45 | /* Pointer to the end of the justify buffer. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 46 | #endif |
| 47 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 48 | #ifndef NANO_TINY |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 49 | /* Toggle the mark. */ |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 50 | void do_mark(void) |
| 51 | { |
| 52 | openfile->mark_set = !openfile->mark_set; |
| 53 | if (openfile->mark_set) { |
| 54 | statusbar(_("Mark Set")); |
| 55 | openfile->mark_begin = openfile->current; |
| 56 | openfile->mark_begin_x = openfile->current_x; |
| 57 | } else { |
| 58 | statusbar(_("Mark UNset")); |
| 59 | openfile->mark_begin = NULL; |
| 60 | openfile->mark_begin_x = 0; |
| 61 | edit_refresh(); |
| 62 | } |
| 63 | } |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 64 | #endif /* !NANO_TINY */ |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 65 | |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 66 | /* Delete one character. */ |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 67 | void do_delete(void) |
| 68 | { |
| 69 | bool do_refresh = FALSE; |
| 70 | /* Do we have to call edit_refresh(), or can we get away with |
David Lawrence Ramsey | 75e9dfe | 2006-05-18 17:50:08 +0000 | [diff] [blame] | 71 | * just update_line()? */ |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 72 | |
| 73 | assert(openfile->current != NULL && openfile->current->data != NULL && openfile->current_x <= strlen(openfile->current->data)); |
| 74 | |
| 75 | openfile->placewewant = xplustabs(); |
| 76 | |
| 77 | if (openfile->current->data[openfile->current_x] != '\0') { |
| 78 | int char_buf_len = parse_mbchar(openfile->current->data + |
David Lawrence Ramsey | 96452cb | 2005-07-26 06:13:45 +0000 | [diff] [blame] | 79 | openfile->current_x, NULL, NULL); |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 80 | size_t line_len = strlen(openfile->current->data + |
| 81 | openfile->current_x); |
| 82 | |
| 83 | assert(openfile->current_x < strlen(openfile->current->data)); |
| 84 | |
| 85 | /* Let's get dangerous. */ |
| 86 | charmove(&openfile->current->data[openfile->current_x], |
| 87 | &openfile->current->data[openfile->current_x + |
| 88 | char_buf_len], line_len - char_buf_len + 1); |
| 89 | |
| 90 | null_at(&openfile->current->data, openfile->current_x + |
| 91 | line_len - char_buf_len); |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 92 | #ifndef NANO_TINY |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 93 | if (openfile->mark_set && openfile->mark_begin == |
| 94 | openfile->current && openfile->current_x < |
| 95 | openfile->mark_begin_x) |
| 96 | openfile->mark_begin_x -= char_buf_len; |
| 97 | #endif |
| 98 | openfile->totsize--; |
David Lawrence Ramsey | 2ffdea4 | 2005-11-03 21:08:39 +0000 | [diff] [blame] | 99 | } else if (openfile->current != openfile->filebot) { |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 100 | filestruct *foo = openfile->current->next; |
| 101 | |
| 102 | assert(openfile->current_x == strlen(openfile->current->data)); |
| 103 | |
| 104 | /* If we're deleting at the end of a line, we need to call |
| 105 | * edit_refresh(). */ |
| 106 | if (openfile->current->data[openfile->current_x] == '\0') |
| 107 | do_refresh = TRUE; |
| 108 | |
| 109 | openfile->current->data = charealloc(openfile->current->data, |
| 110 | openfile->current_x + strlen(foo->data) + 1); |
| 111 | strcpy(openfile->current->data + openfile->current_x, |
| 112 | foo->data); |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 113 | #ifndef NANO_TINY |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 114 | if (openfile->mark_set && openfile->mark_begin == |
| 115 | openfile->current->next) { |
| 116 | openfile->mark_begin = openfile->current; |
| 117 | openfile->mark_begin_x += openfile->current_x; |
| 118 | } |
| 119 | #endif |
| 120 | if (openfile->filebot == foo) |
| 121 | openfile->filebot = openfile->current; |
| 122 | |
| 123 | unlink_node(foo); |
| 124 | delete_node(foo); |
| 125 | renumber(openfile->current); |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 126 | openfile->totsize--; |
| 127 | #ifndef DISABLE_WRAPPING |
| 128 | wrap_reset(); |
| 129 | #endif |
David Lawrence Ramsey | 2ffdea4 | 2005-11-03 21:08:39 +0000 | [diff] [blame] | 130 | |
David Lawrence Ramsey | a0168ca | 2005-11-05 17:35:44 +0000 | [diff] [blame] | 131 | /* If the NO_NEWLINES flag isn't set, and text has been added to |
| 132 | * the magicline as a result of deleting at the end of the line |
David Lawrence Ramsey | 0f6236f | 2005-11-09 00:08:29 +0000 | [diff] [blame] | 133 | * before filebot, add a new magicline. */ |
David Lawrence Ramsey | a0168ca | 2005-11-05 17:35:44 +0000 | [diff] [blame] | 134 | if (!ISSET(NO_NEWLINES) && openfile->current == |
| 135 | openfile->filebot && openfile->current->data[0] != '\0') |
David Lawrence Ramsey | 2ffdea4 | 2005-11-03 21:08:39 +0000 | [diff] [blame] | 136 | new_magicline(); |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 137 | } else |
| 138 | return; |
| 139 | |
David Lawrence Ramsey | 0f6236f | 2005-11-09 00:08:29 +0000 | [diff] [blame] | 140 | set_modified(); |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 141 | |
| 142 | #ifdef ENABLE_COLOR |
| 143 | /* If color syntaxes are available and turned on, we need to call |
| 144 | * edit_refresh(). */ |
| 145 | if (openfile->colorstrings != NULL && !ISSET(NO_COLOR_SYNTAX)) |
| 146 | do_refresh = TRUE; |
| 147 | #endif |
| 148 | |
| 149 | if (do_refresh) |
| 150 | edit_refresh(); |
| 151 | else |
| 152 | update_line(openfile->current, openfile->current_x); |
| 153 | } |
| 154 | |
David Lawrence Ramsey | 5b7b3e3 | 2005-12-31 21:22:54 +0000 | [diff] [blame] | 155 | /* Backspace over one character. That is, move the cursor left one |
| 156 | * character, and then delete the character there. */ |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 157 | void do_backspace(void) |
| 158 | { |
| 159 | if (openfile->current != openfile->fileage || |
| 160 | openfile->current_x > 0) { |
David Lawrence Ramsey | 1c3bfa9 | 2005-09-13 04:53:44 +0000 | [diff] [blame] | 161 | do_left(); |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 162 | do_delete(); |
| 163 | } |
| 164 | } |
| 165 | |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 166 | /* Insert a tab. If the TABS_TO_SPACES flag is set, insert the number |
| 167 | * of spaces that a tab would normally take up. */ |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 168 | void do_tab(void) |
| 169 | { |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 170 | #ifndef NANO_TINY |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 171 | if (ISSET(TABS_TO_SPACES)) { |
| 172 | char *output; |
David Lawrence Ramsey | 90b07fc | 2005-10-07 15:57:48 +0000 | [diff] [blame] | 173 | size_t output_len = 0, new_pww = xplustabs(); |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 174 | |
| 175 | do { |
| 176 | new_pww++; |
| 177 | output_len++; |
| 178 | } while (new_pww % tabsize != 0); |
| 179 | |
| 180 | output = charalloc(output_len + 1); |
| 181 | |
| 182 | charset(output, ' ', output_len); |
| 183 | output[output_len] = '\0'; |
| 184 | |
| 185 | do_output(output, output_len, TRUE); |
| 186 | |
| 187 | free(output); |
| 188 | } else { |
| 189 | #endif |
| 190 | do_output("\t", 1, TRUE); |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 191 | #ifndef NANO_TINY |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 192 | } |
| 193 | #endif |
| 194 | } |
| 195 | |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 196 | #ifndef NANO_TINY |
David Lawrence Ramsey | af9052d | 2006-05-01 17:14:25 +0000 | [diff] [blame] | 197 | /* Indent or unindent all lines covered by the mark len columns, |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 198 | * depending on whether len is positive or negative. If the |
| 199 | * TABS_TO_SPACES flag is set, indent/unindent by len spaces. |
| 200 | * Otherwise, indent/unindent by (len / tabsize) tabs and (len % |
| 201 | * tabsize) spaces. */ |
David Lawrence Ramsey | af9052d | 2006-05-01 17:14:25 +0000 | [diff] [blame] | 202 | void do_indent_marked(ssize_t cols) |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 203 | { |
| 204 | bool indent_changed = FALSE; |
| 205 | /* Whether any indenting or unindenting was done. */ |
| 206 | bool unindent = FALSE; |
| 207 | /* Whether we're unindenting text. */ |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 208 | char *line_indent = NULL; |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 209 | /* The text added to each line in order to indent it. */ |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 210 | size_t line_indent_len = 0; |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 211 | /* The length of the text added to each line in order to indent |
| 212 | * it. */ |
| 213 | filestruct *top, *bot, *f; |
| 214 | size_t top_x, bot_x; |
| 215 | |
| 216 | assert(openfile->current != NULL && openfile->current->data != NULL); |
| 217 | |
| 218 | check_statusblank(); |
| 219 | |
| 220 | /* If the mark isn't on, indicate it on the statusbar and get |
| 221 | * out. */ |
| 222 | if (!openfile->mark_set) { |
| 223 | statusbar(_("No lines selected, nothing to do!")); |
| 224 | return; |
| 225 | } |
| 226 | |
David Lawrence Ramsey | af9052d | 2006-05-01 17:14:25 +0000 | [diff] [blame] | 227 | /* If cols is zero, get out. */ |
| 228 | if (cols == 0) |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 229 | return; |
| 230 | |
David Lawrence Ramsey | af9052d | 2006-05-01 17:14:25 +0000 | [diff] [blame] | 231 | /* If cols is negative, make it positive and set unindent to |
| 232 | * TRUE. */ |
| 233 | if (cols < 0) { |
| 234 | cols = -cols; |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 235 | unindent = TRUE; |
| 236 | /* Otherwise, we're indenting, in which case the file will always be |
| 237 | * modified, so set indent_changed to TRUE. */ |
| 238 | } else |
| 239 | indent_changed = TRUE; |
| 240 | |
| 241 | /* Get the coordinates of the marked text. */ |
| 242 | mark_order((const filestruct **)&top, &top_x, |
| 243 | (const filestruct **)&bot, &bot_x, NULL); |
| 244 | |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 245 | if (!unindent) { |
| 246 | /* Set up the text we'll be using as indentation. */ |
| 247 | line_indent = charalloc(cols + 1); |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 248 | |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 249 | if (ISSET(TABS_TO_SPACES)) { |
| 250 | /* Set the indentation to cols spaces. */ |
| 251 | charset(line_indent, ' ', cols); |
| 252 | line_indent_len = cols; |
| 253 | } else { |
| 254 | /* Set the indentation to (cols / tabsize) tabs and (cols % |
| 255 | * tabsize) spaces. */ |
| 256 | size_t num_tabs = cols / tabsize; |
| 257 | size_t num_spaces = cols % tabsize; |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 258 | |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 259 | charset(line_indent, '\t', num_tabs); |
| 260 | charset(line_indent + num_tabs, ' ', num_spaces); |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 261 | |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 262 | line_indent_len = num_tabs + num_spaces; |
| 263 | } |
| 264 | |
| 265 | line_indent[line_indent_len] = '\0'; |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 266 | } |
| 267 | |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 268 | /* Go through each line of the marked text. */ |
| 269 | for (f = top; f != bot->next; f = f->next) { |
| 270 | size_t line_len = strlen(f->data); |
David Lawrence Ramsey | 2ca3fc9 | 2006-05-01 16:48:12 +0000 | [diff] [blame] | 271 | size_t indent_len = indent_length(f->data); |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 272 | |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 273 | if (!unindent) { |
| 274 | /* If we're indenting, add the characters in line_indent to |
| 275 | * the beginning of the non-whitespace text of this line. */ |
| 276 | f->data = charealloc(f->data, line_len + |
| 277 | line_indent_len + 1); |
| 278 | charmove(&f->data[indent_len + line_indent_len], |
| 279 | &f->data[indent_len], line_len - indent_len + 1); |
| 280 | strncpy(f->data + indent_len, line_indent, line_indent_len); |
| 281 | openfile->totsize += line_indent_len; |
| 282 | |
| 283 | /* Keep track of the change in the current line. */ |
| 284 | if (f == openfile->mark_begin && openfile->mark_begin_x >= |
| 285 | indent_len) |
| 286 | openfile->mark_begin_x += line_indent_len; |
| 287 | |
| 288 | if (f == openfile->current && openfile->current_x >= |
| 289 | indent_len) |
| 290 | openfile->current_x += line_indent_len; |
| 291 | |
| 292 | /* If the NO_NEWLINES flag isn't set, and this is the |
| 293 | * magicline, add a new magicline. */ |
| 294 | if (!ISSET(NO_NEWLINES) && f == openfile->filebot) |
| 295 | new_magicline(); |
| 296 | } else { |
David Lawrence Ramsey | 2ca3fc9 | 2006-05-01 16:48:12 +0000 | [diff] [blame] | 297 | size_t indent_col = strnlenpt(f->data, indent_len); |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 298 | /* The length in columns of the indentation on this |
| 299 | * line. */ |
David Lawrence Ramsey | 2ca3fc9 | 2006-05-01 16:48:12 +0000 | [diff] [blame] | 300 | |
David Lawrence Ramsey | af9052d | 2006-05-01 17:14:25 +0000 | [diff] [blame] | 301 | if (cols <= indent_col) { |
| 302 | size_t indent_new = actual_x(f->data, indent_col - |
| 303 | cols); |
David Lawrence Ramsey | 5bb7727 | 2006-05-06 14:37:33 +0000 | [diff] [blame] | 304 | /* The length of the indentation remaining on |
| 305 | * this line after we unindent. */ |
David Lawrence Ramsey | 2ca3fc9 | 2006-05-01 16:48:12 +0000 | [diff] [blame] | 306 | size_t indent_shift = indent_len - indent_new; |
David Lawrence Ramsey | 5bb7727 | 2006-05-06 14:37:33 +0000 | [diff] [blame] | 307 | /* The change in the indentation on this line |
| 308 | * after we unindent. */ |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 309 | |
David Lawrence Ramsey | af9052d | 2006-05-01 17:14:25 +0000 | [diff] [blame] | 310 | /* If we're unindenting, and there's at least cols |
David Lawrence Ramsey | 2ca3fc9 | 2006-05-01 16:48:12 +0000 | [diff] [blame] | 311 | * columns' worth of indentation at the beginning of the |
| 312 | * non-whitespace text of this line, remove it. */ |
| 313 | charmove(&f->data[indent_new], &f->data[indent_len], |
| 314 | line_len - indent_shift - indent_new + 1); |
| 315 | null_at(&f->data, line_len - indent_shift + 1); |
| 316 | openfile->totsize -= indent_shift; |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 317 | |
David Lawrence Ramsey | 2e8fac6 | 2006-04-29 15:44:58 +0000 | [diff] [blame] | 318 | /* Keep track of the change in the current line. */ |
David Lawrence Ramsey | 2e8fac6 | 2006-04-29 15:44:58 +0000 | [diff] [blame] | 319 | if (f == openfile->mark_begin && |
David Lawrence Ramsey | eb4f90e | 2006-05-05 14:22:42 +0000 | [diff] [blame] | 320 | openfile->mark_begin_x > indent_new) { |
| 321 | if (openfile->mark_begin_x <= indent_len) |
| 322 | openfile->mark_begin_x = indent_new; |
| 323 | else |
| 324 | openfile->mark_begin_x -= indent_shift; |
| 325 | } |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 326 | |
David Lawrence Ramsey | ac37b04 | 2006-05-03 12:59:05 +0000 | [diff] [blame] | 327 | if (f == openfile->current && openfile->current_x > |
David Lawrence Ramsey | eb4f90e | 2006-05-05 14:22:42 +0000 | [diff] [blame] | 328 | indent_new) { |
| 329 | if (openfile->current_x <= indent_len) |
| 330 | openfile->current_x = indent_new; |
| 331 | else |
| 332 | openfile->current_x -= indent_shift; |
| 333 | } |
David Lawrence Ramsey | 7194a61 | 2006-04-29 16:11:21 +0000 | [diff] [blame] | 334 | |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 335 | /* We've unindented, so set indent_changed to TRUE. */ |
| 336 | if (!indent_changed) |
| 337 | indent_changed = TRUE; |
| 338 | } |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 339 | } |
| 340 | } |
| 341 | |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 342 | if (!unindent) |
David Lawrence Ramsey | 2545686 | 2006-05-05 15:43:52 +0000 | [diff] [blame] | 343 | /* Clean up. */ |
David Lawrence Ramsey | 80669c3 | 2006-05-05 15:41:43 +0000 | [diff] [blame] | 344 | free(line_indent); |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 345 | |
| 346 | if (indent_changed) { |
| 347 | /* Mark the file as modified. */ |
| 348 | set_modified(); |
| 349 | |
| 350 | /* Update the screen. */ |
| 351 | edit_refresh(); |
| 352 | } |
| 353 | } |
| 354 | |
David Lawrence Ramsey | af9052d | 2006-05-01 17:14:25 +0000 | [diff] [blame] | 355 | /* Indent all lines covered by the mark tabsize columns. */ |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 356 | void do_indent_marked_void(void) |
| 357 | { |
| 358 | do_indent_marked(tabsize); |
| 359 | } |
| 360 | |
David Lawrence Ramsey | af9052d | 2006-05-01 17:14:25 +0000 | [diff] [blame] | 361 | /* Unindent all lines covered by the mark tabsize columns. */ |
David Lawrence Ramsey | f85001a | 2006-04-28 13:19:56 +0000 | [diff] [blame] | 362 | void do_unindent_marked_void(void) |
| 363 | { |
| 364 | do_indent_marked(-tabsize); |
| 365 | } |
| 366 | #endif /* !NANO_TINY */ |
| 367 | |
David Lawrence Ramsey | b0e04c0 | 2005-12-08 07:24:54 +0000 | [diff] [blame] | 368 | /* Someone hits Enter *gasp!* */ |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 369 | void do_enter(void) |
| 370 | { |
| 371 | filestruct *newnode = make_new_node(openfile->current); |
| 372 | size_t extra = 0; |
| 373 | |
| 374 | assert(openfile->current != NULL && openfile->current->data != NULL); |
| 375 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 376 | #ifndef NANO_TINY |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 377 | /* Do auto-indenting, like the neolithic Turbo Pascal editor. */ |
| 378 | if (ISSET(AUTOINDENT)) { |
| 379 | /* If we are breaking the line in the indentation, the new |
| 380 | * indentation should have only current_x characters, and |
| 381 | * current_x should not change. */ |
| 382 | extra = indent_length(openfile->current->data); |
| 383 | if (extra > openfile->current_x) |
| 384 | extra = openfile->current_x; |
| 385 | } |
| 386 | #endif |
| 387 | newnode->data = charalloc(strlen(openfile->current->data + |
| 388 | openfile->current_x) + extra + 1); |
| 389 | strcpy(&newnode->data[extra], openfile->current->data + |
| 390 | openfile->current_x); |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 391 | #ifndef NANO_TINY |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 392 | if (ISSET(AUTOINDENT)) { |
| 393 | strncpy(newnode->data, openfile->current->data, extra); |
| 394 | openfile->totsize += mbstrlen(newnode->data); |
| 395 | } |
| 396 | #endif |
| 397 | null_at(&openfile->current->data, openfile->current_x); |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 398 | #ifndef NANO_TINY |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 399 | if (openfile->mark_set && openfile->current == |
| 400 | openfile->mark_begin && openfile->current_x < |
| 401 | openfile->mark_begin_x) { |
| 402 | openfile->mark_begin = newnode; |
| 403 | openfile->mark_begin_x += extra - openfile->current_x; |
| 404 | } |
| 405 | #endif |
| 406 | openfile->current_x = extra; |
| 407 | |
| 408 | if (openfile->current == openfile->filebot) |
| 409 | openfile->filebot = newnode; |
| 410 | splice_node(openfile->current, newnode, |
| 411 | openfile->current->next); |
| 412 | |
| 413 | renumber(openfile->current); |
| 414 | openfile->current = newnode; |
| 415 | |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 416 | openfile->totsize++; |
| 417 | set_modified(); |
David Lawrence Ramsey | feb89db | 2005-09-13 04:45:46 +0000 | [diff] [blame] | 418 | |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 419 | openfile->placewewant = xplustabs(); |
David Lawrence Ramsey | feb89db | 2005-09-13 04:45:46 +0000 | [diff] [blame] | 420 | |
| 421 | edit_refresh(); |
David Lawrence Ramsey | 7ea09e5 | 2005-07-25 02:41:59 +0000 | [diff] [blame] | 422 | } |
| 423 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 424 | #ifndef NANO_TINY |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 425 | /* Send a SIGKILL (unconditional kill) to the forked process in |
| 426 | * execute_command(). */ |
David Lawrence Ramsey | 8befda6 | 2005-12-06 19:39:56 +0000 | [diff] [blame] | 427 | RETSIGTYPE cancel_command(int signal) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 428 | { |
| 429 | if (kill(pid, SIGKILL) == -1) |
| 430 | nperror("kill"); |
| 431 | } |
| 432 | |
David Lawrence Ramsey | 0ed7171 | 2005-11-08 23:09:47 +0000 | [diff] [blame] | 433 | /* Execute command in a shell. Return TRUE on success. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 434 | bool execute_command(const char *command) |
| 435 | { |
| 436 | int fd[2]; |
| 437 | FILE *f; |
David Lawrence Ramsey | eae8571 | 2005-11-29 05:48:06 +0000 | [diff] [blame] | 438 | char *shellenv; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 439 | struct sigaction oldaction, newaction; |
| 440 | /* Original and temporary handlers for SIGINT. */ |
| 441 | bool sig_failed = FALSE; |
| 442 | /* Did sigaction() fail without changing the signal handlers? */ |
| 443 | |
| 444 | /* Make our pipes. */ |
| 445 | if (pipe(fd) == -1) { |
| 446 | statusbar(_("Could not pipe")); |
| 447 | return FALSE; |
| 448 | } |
| 449 | |
David Lawrence Ramsey | eae8571 | 2005-11-29 05:48:06 +0000 | [diff] [blame] | 450 | /* Check $SHELL for the shell to use. If it isn't set, use |
David Lawrence Ramsey | 1932dfb | 2005-11-29 05:52:49 +0000 | [diff] [blame] | 451 | * /bin/sh. Note that $SHELL should contain only a path, with no |
| 452 | * arguments. */ |
David Lawrence Ramsey | eae8571 | 2005-11-29 05:48:06 +0000 | [diff] [blame] | 453 | shellenv = getenv("SHELL"); |
| 454 | if (shellenv == NULL) |
| 455 | shellenv = "/bin/sh"; |
| 456 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 457 | /* Fork a child. */ |
| 458 | if ((pid = fork()) == 0) { |
| 459 | close(fd[0]); |
| 460 | dup2(fd[1], fileno(stdout)); |
| 461 | dup2(fd[1], fileno(stderr)); |
| 462 | |
| 463 | /* If execl() returns at all, there was an error. */ |
David Lawrence Ramsey | 5da68ee | 2005-11-29 05:21:06 +0000 | [diff] [blame] | 464 | execl(shellenv, tail(shellenv), "-c", command, NULL); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 465 | exit(0); |
| 466 | } |
| 467 | |
David Lawrence Ramsey | c838a4c | 2006-04-26 18:33:50 +0000 | [diff] [blame] | 468 | /* Continue as parent. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 469 | close(fd[1]); |
| 470 | |
| 471 | if (pid == -1) { |
| 472 | close(fd[0]); |
| 473 | statusbar(_("Could not fork")); |
| 474 | return FALSE; |
| 475 | } |
| 476 | |
| 477 | /* Before we start reading the forked command's output, we set |
| 478 | * things up so that Ctrl-C will cancel the new process. */ |
| 479 | |
| 480 | /* Enable interpretation of the special control keys so that we get |
| 481 | * SIGINT when Ctrl-C is pressed. */ |
| 482 | enable_signals(); |
| 483 | |
| 484 | if (sigaction(SIGINT, NULL, &newaction) == -1) { |
| 485 | sig_failed = TRUE; |
| 486 | nperror("sigaction"); |
| 487 | } else { |
| 488 | newaction.sa_handler = cancel_command; |
| 489 | if (sigaction(SIGINT, &newaction, &oldaction) == -1) { |
| 490 | sig_failed = TRUE; |
| 491 | nperror("sigaction"); |
| 492 | } |
| 493 | } |
| 494 | |
| 495 | /* Note that now oldaction is the previous SIGINT signal handler, |
| 496 | * to be restored later. */ |
| 497 | |
| 498 | f = fdopen(fd[0], "rb"); |
| 499 | if (f == NULL) |
| 500 | nperror("fdopen"); |
| 501 | |
| 502 | read_file(f, "stdin"); |
| 503 | |
| 504 | /* If multibuffer mode is on, we could be here in view mode. If so, |
| 505 | * don't set the modification flag. */ |
| 506 | if (!ISSET(VIEW_MODE)) |
| 507 | set_modified(); |
| 508 | |
| 509 | if (wait(NULL) == -1) |
| 510 | nperror("wait"); |
| 511 | |
| 512 | if (!sig_failed && sigaction(SIGINT, &oldaction, NULL) == -1) |
| 513 | nperror("sigaction"); |
| 514 | |
| 515 | /* Disable interpretation of the special control keys so that we can |
| 516 | * use Ctrl-C for other things. */ |
| 517 | disable_signals(); |
| 518 | |
| 519 | return TRUE; |
| 520 | } |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 521 | #endif /* !NANO_TINY */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 522 | |
| 523 | #ifndef DISABLE_WRAPPING |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 524 | /* Clear the prepend_wrap flag. We need to do this as soon as we do |
| 525 | * something other than type text. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 526 | void wrap_reset(void) |
| 527 | { |
David Lawrence Ramsey | b4e5c02 | 2005-11-25 13:48:09 +0000 | [diff] [blame] | 528 | prepend_wrap = FALSE; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 529 | } |
| 530 | |
| 531 | /* We wrap the given line. Precondition: we assume the cursor has been |
| 532 | * moved forward since the last typed character. Return value: whether |
| 533 | * we wrapped. */ |
| 534 | bool do_wrap(filestruct *line) |
| 535 | { |
| 536 | size_t line_len; |
David Lawrence Ramsey | 3f12ada | 2005-07-25 22:54:16 +0000 | [diff] [blame] | 537 | /* The length of the line we wrap. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 538 | ssize_t wrap_loc; |
David Lawrence Ramsey | 3f12ada | 2005-07-25 22:54:16 +0000 | [diff] [blame] | 539 | /* The index of line->data where we wrap. */ |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 540 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 541 | const char *indent_string = NULL; |
| 542 | /* Indentation to prepend to the new line. */ |
David Lawrence Ramsey | 3f12ada | 2005-07-25 22:54:16 +0000 | [diff] [blame] | 543 | size_t indent_len = 0; |
| 544 | /* The length of indent_string. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 545 | #endif |
David Lawrence Ramsey | 3f12ada | 2005-07-25 22:54:16 +0000 | [diff] [blame] | 546 | const char *after_break; |
| 547 | /* The text after the wrap point. */ |
| 548 | size_t after_break_len; |
| 549 | /* The length of after_break. */ |
David Lawrence Ramsey | 615f4c7 | 2005-11-22 21:48:24 +0000 | [diff] [blame] | 550 | bool prepending = FALSE; |
David Lawrence Ramsey | 3f12ada | 2005-07-25 22:54:16 +0000 | [diff] [blame] | 551 | /* Do we prepend to the next line? */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 552 | const char *next_line = NULL; |
| 553 | /* The next line, minus indentation. */ |
David Lawrence Ramsey | 3f12ada | 2005-07-25 22:54:16 +0000 | [diff] [blame] | 554 | size_t next_line_len = 0; |
| 555 | /* The length of next_line. */ |
| 556 | char *new_line = NULL; |
| 557 | /* The line we create. */ |
| 558 | size_t new_line_len = 0; |
| 559 | /* The eventual length of new_line. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 560 | |
| 561 | /* There are three steps. First, we decide where to wrap. Then, we |
| 562 | * create the new wrap line. Finally, we clean up. */ |
| 563 | |
| 564 | /* Step 1, finding where to wrap. We are going to add a new line |
| 565 | * after a blank character. In this step, we call break_line() to |
| 566 | * get the location of the last blank we can break the line at, and |
| 567 | * and set wrap_loc to the location of the character after it, so |
| 568 | * that the blank is preserved at the end of the line. |
| 569 | * |
| 570 | * If there is no legal wrap point, or we reach the last character |
| 571 | * of the line while trying to find one, we should return without |
| 572 | * wrapping. Note that if autoindent is turned on, we don't break |
| 573 | * at the end of it! */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 574 | assert(line != NULL && line->data != NULL); |
| 575 | |
| 576 | /* Save the length of the line. */ |
| 577 | line_len = strlen(line->data); |
| 578 | |
| 579 | /* Find the last blank where we can break the line. */ |
David Lawrence Ramsey | b9b2fd5 | 2005-11-22 21:13:36 +0000 | [diff] [blame] | 580 | wrap_loc = break_line(line->data, fill |
| 581 | #ifndef DISABLE_HELP |
| 582 | , FALSE |
| 583 | #endif |
| 584 | ); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 585 | |
| 586 | /* If we couldn't break the line, or we've reached the end of it, we |
| 587 | * don't wrap. */ |
| 588 | if (wrap_loc == -1 || line->data[wrap_loc] == '\0') |
| 589 | return FALSE; |
| 590 | |
| 591 | /* Otherwise, move forward to the character just after the blank. */ |
| 592 | wrap_loc += move_mbright(line->data + wrap_loc, 0); |
| 593 | |
| 594 | /* If we've reached the end of the line, we don't wrap. */ |
| 595 | if (line->data[wrap_loc] == '\0') |
| 596 | return FALSE; |
| 597 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 598 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 599 | /* If autoindent is turned on, and we're on the character just after |
| 600 | * the indentation, we don't wrap. */ |
| 601 | if (ISSET(AUTOINDENT)) { |
| 602 | /* Get the indentation of this line. */ |
| 603 | indent_string = line->data; |
| 604 | indent_len = indent_length(indent_string); |
| 605 | |
| 606 | if (wrap_loc == indent_len) |
| 607 | return FALSE; |
| 608 | } |
| 609 | #endif |
| 610 | |
| 611 | /* Step 2, making the new wrap line. It will consist of indentation |
| 612 | * followed by the text after the wrap point, optionally followed by |
| 613 | * a space (if the text after the wrap point doesn't end in a blank) |
| 614 | * and the text of the next line, if they can fit without |
David Lawrence Ramsey | b4e5c02 | 2005-11-25 13:48:09 +0000 | [diff] [blame] | 615 | * wrapping, the next line exists, and the prepend_wrap flag is |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 616 | * set. */ |
| 617 | |
| 618 | /* after_break is the text that will be wrapped to the next line. */ |
| 619 | after_break = line->data + wrap_loc; |
| 620 | after_break_len = line_len - wrap_loc; |
| 621 | |
| 622 | assert(strlen(after_break) == after_break_len); |
| 623 | |
David Lawrence Ramsey | b4e5c02 | 2005-11-25 13:48:09 +0000 | [diff] [blame] | 624 | /* We prepend the wrapped text to the next line, if the prepend_wrap |
| 625 | * flag is set, there is a next line, and prepending would not make |
| 626 | * the line too long. */ |
| 627 | if (prepend_wrap && line != openfile->filebot) { |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 628 | const char *end = after_break + move_mbleft(after_break, |
| 629 | after_break_len); |
| 630 | |
| 631 | /* If after_break doesn't end in a blank, make sure it ends in a |
| 632 | * space. */ |
| 633 | if (!is_blank_mbchar(end)) { |
| 634 | line_len++; |
| 635 | line->data = charealloc(line->data, line_len + 1); |
| 636 | line->data[line_len - 1] = ' '; |
| 637 | line->data[line_len] = '\0'; |
| 638 | after_break = line->data + wrap_loc; |
| 639 | after_break_len++; |
| 640 | openfile->totsize++; |
| 641 | } |
| 642 | |
| 643 | next_line = line->next->data; |
| 644 | next_line_len = strlen(next_line); |
| 645 | |
| 646 | if (after_break_len + next_line_len <= fill) { |
David Lawrence Ramsey | 615f4c7 | 2005-11-22 21:48:24 +0000 | [diff] [blame] | 647 | prepending = TRUE; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 648 | new_line_len += next_line_len; |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | /* new_line_len is now the length of the text that will be wrapped |
| 653 | * to the next line, plus (if we're prepending to it) the length of |
| 654 | * the text of the next line. */ |
| 655 | new_line_len += after_break_len; |
| 656 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 657 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 658 | if (ISSET(AUTOINDENT)) { |
David Lawrence Ramsey | 615f4c7 | 2005-11-22 21:48:24 +0000 | [diff] [blame] | 659 | if (prepending) { |
| 660 | /* If we're prepending, the indentation will come from the |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 661 | * next line. */ |
| 662 | indent_string = next_line; |
| 663 | indent_len = indent_length(indent_string); |
| 664 | next_line += indent_len; |
| 665 | } else { |
| 666 | /* Otherwise, it will come from this line, in which case |
| 667 | * we should increase new_line_len to make room for it. */ |
| 668 | new_line_len += indent_len; |
| 669 | openfile->totsize += mbstrnlen(indent_string, indent_len); |
| 670 | } |
| 671 | } |
| 672 | #endif |
| 673 | |
| 674 | /* Now we allocate the new line and copy the text into it. */ |
| 675 | new_line = charalloc(new_line_len + 1); |
| 676 | new_line[0] = '\0'; |
| 677 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 678 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 679 | if (ISSET(AUTOINDENT)) { |
| 680 | /* Copy the indentation. */ |
| 681 | strncpy(new_line, indent_string, indent_len); |
| 682 | new_line[indent_len] = '\0'; |
| 683 | new_line_len += indent_len; |
| 684 | } |
| 685 | #endif |
| 686 | |
| 687 | /* Copy all the text after the wrap point of the current line. */ |
| 688 | strcat(new_line, after_break); |
| 689 | |
| 690 | /* Break the current line at the wrap point. */ |
| 691 | null_at(&line->data, wrap_loc); |
| 692 | |
David Lawrence Ramsey | 615f4c7 | 2005-11-22 21:48:24 +0000 | [diff] [blame] | 693 | if (prepending) { |
| 694 | /* If we're prepending, copy the text from the next line, minus |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 695 | * the indentation that we already copied above. */ |
| 696 | strcat(new_line, next_line); |
| 697 | |
| 698 | free(line->next->data); |
| 699 | line->next->data = new_line; |
David Lawrence Ramsey | b4e5c02 | 2005-11-25 13:48:09 +0000 | [diff] [blame] | 700 | |
| 701 | /* If the NO_NEWLINES flag isn't set, and text has been added to |
| 702 | * the magicline, make a new magicline. */ |
| 703 | if (!ISSET(NO_NEWLINES) && openfile->filebot->data[0] != '\0') |
| 704 | new_magicline(); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 705 | } else { |
| 706 | /* Otherwise, make a new line and copy the text after where we |
| 707 | * broke this line to the beginning of the new line. */ |
| 708 | splice_node(openfile->current, make_new_node(openfile->current), |
| 709 | openfile->current->next); |
| 710 | |
David Lawrence Ramsey | 219a814 | 2005-11-22 22:08:01 +0000 | [diff] [blame] | 711 | /* If the current line is the last line of the file, move the |
| 712 | * last line of the file down to the next line. */ |
David Lawrence Ramsey | 615f4c7 | 2005-11-22 21:48:24 +0000 | [diff] [blame] | 713 | if (openfile->filebot == openfile->current) |
| 714 | openfile->filebot = openfile->current->next; |
| 715 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 716 | openfile->current->next->data = new_line; |
| 717 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 718 | openfile->totsize++; |
| 719 | } |
| 720 | |
| 721 | /* Step 3, clean up. Reposition the cursor and mark, and do some |
| 722 | * other sundry things. */ |
| 723 | |
David Lawrence Ramsey | b4e5c02 | 2005-11-25 13:48:09 +0000 | [diff] [blame] | 724 | /* Set the prepend_wrap flag, so that later wraps of this line will |
| 725 | * be prepended to the next line. */ |
| 726 | prepend_wrap = TRUE; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 727 | |
| 728 | /* Each line knows its line number. We recalculate these if we |
| 729 | * inserted a new line. */ |
David Lawrence Ramsey | 615f4c7 | 2005-11-22 21:48:24 +0000 | [diff] [blame] | 730 | if (!prepending) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 731 | renumber(line); |
| 732 | |
| 733 | /* If the cursor was after the break point, we must move it. We |
David Lawrence Ramsey | b4e5c02 | 2005-11-25 13:48:09 +0000 | [diff] [blame] | 734 | * also clear the prepend_wrap flag in this case. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 735 | if (openfile->current_x > wrap_loc) { |
David Lawrence Ramsey | b4e5c02 | 2005-11-25 13:48:09 +0000 | [diff] [blame] | 736 | prepend_wrap = FALSE; |
David Lawrence Ramsey | 615f4c7 | 2005-11-22 21:48:24 +0000 | [diff] [blame] | 737 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 738 | openfile->current = openfile->current->next; |
| 739 | openfile->current_x -= wrap_loc |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 740 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 741 | - indent_len |
| 742 | #endif |
| 743 | ; |
| 744 | openfile->placewewant = xplustabs(); |
| 745 | } |
| 746 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 747 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 748 | /* If the mark was on this line after the wrap point, we move it |
David Lawrence Ramsey | 615f4c7 | 2005-11-22 21:48:24 +0000 | [diff] [blame] | 749 | * down. If it was on the next line and we prepended to that line, |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 750 | * we move it right. */ |
| 751 | if (openfile->mark_set) { |
| 752 | if (openfile->mark_begin == line && openfile->mark_begin_x > |
| 753 | wrap_loc) { |
| 754 | openfile->mark_begin = line->next; |
| 755 | openfile->mark_begin_x -= wrap_loc - indent_len + 1; |
David Lawrence Ramsey | 615f4c7 | 2005-11-22 21:48:24 +0000 | [diff] [blame] | 756 | } else if (prepending && openfile->mark_begin == line->next) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 757 | openfile->mark_begin_x += after_break_len; |
| 758 | } |
| 759 | #endif |
| 760 | |
| 761 | return TRUE; |
| 762 | } |
| 763 | #endif /* !DISABLE_WRAPPING */ |
| 764 | |
David Lawrence Ramsey | c7c04bb | 2005-11-29 21:30:00 +0000 | [diff] [blame] | 765 | #if !defined(DISABLE_HELP) || !defined(DISABLE_WRAPJUSTIFY) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 766 | /* We are trying to break a chunk off line. We find the last blank such |
David Lawrence Ramsey | cd9a5f0 | 2005-09-20 06:12:54 +0000 | [diff] [blame] | 767 | * that the display length to there is at most (goal + 1). If there is |
| 768 | * no such blank, then we find the first blank. We then take the last |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 769 | * blank in that group of blanks. The terminating '\0' counts as a |
| 770 | * blank, as does a '\n' if newline is TRUE. */ |
David Lawrence Ramsey | b9b2fd5 | 2005-11-22 21:13:36 +0000 | [diff] [blame] | 771 | ssize_t break_line(const char *line, ssize_t goal |
| 772 | #ifndef DISABLE_HELP |
| 773 | , bool newline |
| 774 | #endif |
| 775 | ) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 776 | { |
| 777 | ssize_t blank_loc = -1; |
| 778 | /* Current tentative return value. Index of the last blank we |
| 779 | * found with short enough display width. */ |
| 780 | ssize_t cur_loc = 0; |
| 781 | /* Current index in line. */ |
David Lawrence Ramsey | 2d3d1e9 | 2006-05-18 17:28:16 +0000 | [diff] [blame] | 782 | size_t cur_pos = 0; |
| 783 | /* Current column position in line. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 784 | int line_len; |
| 785 | |
| 786 | assert(line != NULL); |
| 787 | |
David Lawrence Ramsey | 2d3d1e9 | 2006-05-18 17:28:16 +0000 | [diff] [blame] | 788 | while (*line != '\0' && goal >= cur_pos) { |
| 789 | line_len = parse_mbchar(line, NULL, &cur_pos); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 790 | |
David Lawrence Ramsey | b9b2fd5 | 2005-11-22 21:13:36 +0000 | [diff] [blame] | 791 | if (is_blank_mbchar(line) |
| 792 | #ifndef DISABLE_HELP |
| 793 | || (newline && *line == '\n') |
| 794 | #endif |
| 795 | ) { |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 796 | blank_loc = cur_loc; |
| 797 | |
David Lawrence Ramsey | b9b2fd5 | 2005-11-22 21:13:36 +0000 | [diff] [blame] | 798 | #ifndef DISABLE_HELP |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 799 | if (newline && *line == '\n') |
| 800 | break; |
David Lawrence Ramsey | b9b2fd5 | 2005-11-22 21:13:36 +0000 | [diff] [blame] | 801 | #endif |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 802 | } |
| 803 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 804 | line += line_len; |
| 805 | cur_loc += line_len; |
| 806 | } |
| 807 | |
David Lawrence Ramsey | 2d3d1e9 | 2006-05-18 17:28:16 +0000 | [diff] [blame] | 808 | if (goal >= cur_pos) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 809 | /* In fact, the whole line displays shorter than goal. */ |
| 810 | return cur_loc; |
| 811 | |
| 812 | if (blank_loc == -1) { |
| 813 | /* No blank was found that was short enough. */ |
| 814 | bool found_blank = FALSE; |
David Lawrence Ramsey | 5ab12ca | 2005-09-20 17:52:52 +0000 | [diff] [blame] | 815 | ssize_t found_blank_loc = 0; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 816 | |
| 817 | while (*line != '\0') { |
David Lawrence Ramsey | 96452cb | 2005-07-26 06:13:45 +0000 | [diff] [blame] | 818 | line_len = parse_mbchar(line, NULL, NULL); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 819 | |
David Lawrence Ramsey | b9b2fd5 | 2005-11-22 21:13:36 +0000 | [diff] [blame] | 820 | if (is_blank_mbchar(line) |
| 821 | #ifndef DISABLE_HELP |
| 822 | || (newline && *line == '\n') |
| 823 | #endif |
| 824 | ) { |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 825 | if (!found_blank) |
| 826 | found_blank = TRUE; |
David Lawrence Ramsey | bdc1b9b | 2005-09-20 16:36:08 +0000 | [diff] [blame] | 827 | found_blank_loc = cur_loc; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 828 | } else if (found_blank) |
David Lawrence Ramsey | bdc1b9b | 2005-09-20 16:36:08 +0000 | [diff] [blame] | 829 | return found_blank_loc; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 830 | |
| 831 | line += line_len; |
| 832 | cur_loc += line_len; |
| 833 | } |
| 834 | |
| 835 | return -1; |
| 836 | } |
| 837 | |
| 838 | /* Move to the last blank after blank_loc, if there is one. */ |
| 839 | line -= cur_loc; |
| 840 | line += blank_loc; |
David Lawrence Ramsey | 96452cb | 2005-07-26 06:13:45 +0000 | [diff] [blame] | 841 | line_len = parse_mbchar(line, NULL, NULL); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 842 | line += line_len; |
| 843 | |
David Lawrence Ramsey | b9b2fd5 | 2005-11-22 21:13:36 +0000 | [diff] [blame] | 844 | while (*line != '\0' && (is_blank_mbchar(line) |
| 845 | #ifndef DISABLE_HELP |
| 846 | || (newline && *line == '\n') |
| 847 | #endif |
| 848 | )) { |
David Lawrence Ramsey | cd243f5 | 2006-05-19 23:27:16 +0000 | [diff] [blame] | 849 | #ifndef DISABLE_HELP |
| 850 | if (newline && *line == '\n') |
| 851 | break; |
| 852 | #endif |
| 853 | |
David Lawrence Ramsey | 39bd1b3 | 2006-05-20 13:11:56 +0000 | [diff] [blame^] | 854 | line_len = parse_mbchar(line, NULL, NULL); |
| 855 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 856 | line += line_len; |
| 857 | blank_loc += line_len; |
| 858 | } |
| 859 | |
| 860 | return blank_loc; |
| 861 | } |
David Lawrence Ramsey | c7c04bb | 2005-11-29 21:30:00 +0000 | [diff] [blame] | 862 | #endif /* !DISABLE_HELP || !DISABLE_WRAPJUSTIFY */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 863 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 864 | #if !defined(NANO_TINY) || !defined(DISABLE_JUSTIFY) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 865 | /* The "indentation" of a line is the whitespace between the quote part |
| 866 | * and the non-whitespace of the line. */ |
| 867 | size_t indent_length(const char *line) |
| 868 | { |
| 869 | size_t len = 0; |
| 870 | char *blank_mb; |
| 871 | int blank_mb_len; |
| 872 | |
| 873 | assert(line != NULL); |
| 874 | |
| 875 | blank_mb = charalloc(mb_cur_max()); |
| 876 | |
| 877 | while (*line != '\0') { |
David Lawrence Ramsey | 96452cb | 2005-07-26 06:13:45 +0000 | [diff] [blame] | 878 | blank_mb_len = parse_mbchar(line, blank_mb, NULL); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 879 | |
| 880 | if (!is_blank_mbchar(blank_mb)) |
| 881 | break; |
| 882 | |
| 883 | line += blank_mb_len; |
| 884 | len += blank_mb_len; |
| 885 | } |
| 886 | |
| 887 | free(blank_mb); |
| 888 | |
| 889 | return len; |
| 890 | } |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 891 | #endif /* !NANO_TINY || !DISABLE_JUSTIFY */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 892 | |
| 893 | #ifndef DISABLE_JUSTIFY |
| 894 | /* justify_format() replaces blanks with spaces and multiple spaces by 1 |
| 895 | * (except it maintains up to 2 after a character in punct optionally |
| 896 | * followed by a character in brackets, and removes all from the end). |
| 897 | * |
| 898 | * justify_format() might make paragraph->data shorter, and change the |
| 899 | * actual pointer with null_at(). |
| 900 | * |
| 901 | * justify_format() will not look at the first skip characters of |
| 902 | * paragraph. skip should be at most strlen(paragraph->data). The |
| 903 | * character at paragraph[skip + 1] must not be blank. */ |
| 904 | void justify_format(filestruct *paragraph, size_t skip) |
| 905 | { |
| 906 | char *end, *new_end, *new_paragraph_data; |
| 907 | size_t shift = 0; |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 908 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 909 | size_t mark_shift = 0; |
| 910 | #endif |
| 911 | |
| 912 | /* These four asserts are assumptions about the input data. */ |
| 913 | assert(paragraph != NULL); |
| 914 | assert(paragraph->data != NULL); |
| 915 | assert(skip < strlen(paragraph->data)); |
| 916 | assert(!is_blank_mbchar(paragraph->data + skip)); |
| 917 | |
| 918 | end = paragraph->data + skip; |
| 919 | new_paragraph_data = charalloc(strlen(paragraph->data) + 1); |
| 920 | strncpy(new_paragraph_data, paragraph->data, skip); |
| 921 | new_end = new_paragraph_data + skip; |
| 922 | |
| 923 | while (*end != '\0') { |
David Lawrence Ramsey | 30bdadd | 2005-12-31 21:08:10 +0000 | [diff] [blame] | 924 | int end_len; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 925 | |
David Lawrence Ramsey | 30bdadd | 2005-12-31 21:08:10 +0000 | [diff] [blame] | 926 | /* If this character is blank, change it to a space if |
| 927 | * necessary, and skip over all blanks after it. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 928 | if (is_blank_mbchar(end)) { |
David Lawrence Ramsey | 30bdadd | 2005-12-31 21:08:10 +0000 | [diff] [blame] | 929 | end_len = parse_mbchar(end, NULL, NULL); |
| 930 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 931 | *new_end = ' '; |
| 932 | new_end++; |
| 933 | end += end_len; |
| 934 | |
| 935 | while (*end != '\0' && is_blank_mbchar(end)) { |
David Lawrence Ramsey | 96452cb | 2005-07-26 06:13:45 +0000 | [diff] [blame] | 936 | end_len = parse_mbchar(end, NULL, NULL); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 937 | |
| 938 | end += end_len; |
| 939 | shift += end_len; |
| 940 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 941 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 942 | /* Keep track of the change in the current line. */ |
| 943 | if (openfile->mark_set && openfile->mark_begin == |
| 944 | paragraph && openfile->mark_begin_x >= end - |
| 945 | paragraph->data) |
| 946 | mark_shift += end_len; |
| 947 | #endif |
| 948 | } |
| 949 | /* If this character is punctuation optionally followed by a |
David Lawrence Ramsey | 30bdadd | 2005-12-31 21:08:10 +0000 | [diff] [blame] | 950 | * bracket and then followed by blanks, change no more than two |
| 951 | * of the blanks to spaces if necessary, and skip over all |
| 952 | * blanks after them. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 953 | } else if (mbstrchr(punct, end) != NULL) { |
David Lawrence Ramsey | 30bdadd | 2005-12-31 21:08:10 +0000 | [diff] [blame] | 954 | end_len = parse_mbchar(end, NULL, NULL); |
| 955 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 956 | while (end_len > 0) { |
| 957 | *new_end = *end; |
| 958 | new_end++; |
| 959 | end++; |
| 960 | end_len--; |
| 961 | } |
| 962 | |
| 963 | if (*end != '\0' && mbstrchr(brackets, end) != NULL) { |
David Lawrence Ramsey | 96452cb | 2005-07-26 06:13:45 +0000 | [diff] [blame] | 964 | end_len = parse_mbchar(end, NULL, NULL); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 965 | |
| 966 | while (end_len > 0) { |
| 967 | *new_end = *end; |
| 968 | new_end++; |
| 969 | end++; |
| 970 | end_len--; |
| 971 | } |
| 972 | } |
| 973 | |
| 974 | if (*end != '\0' && is_blank_mbchar(end)) { |
David Lawrence Ramsey | 96452cb | 2005-07-26 06:13:45 +0000 | [diff] [blame] | 975 | end_len = parse_mbchar(end, NULL, NULL); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 976 | |
| 977 | *new_end = ' '; |
| 978 | new_end++; |
| 979 | end += end_len; |
| 980 | } |
| 981 | |
| 982 | if (*end != '\0' && is_blank_mbchar(end)) { |
David Lawrence Ramsey | 96452cb | 2005-07-26 06:13:45 +0000 | [diff] [blame] | 983 | end_len = parse_mbchar(end, NULL, NULL); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 984 | |
| 985 | *new_end = ' '; |
| 986 | new_end++; |
| 987 | end += end_len; |
| 988 | } |
| 989 | |
| 990 | while (*end != '\0' && is_blank_mbchar(end)) { |
David Lawrence Ramsey | 96452cb | 2005-07-26 06:13:45 +0000 | [diff] [blame] | 991 | end_len = parse_mbchar(end, NULL, NULL); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 992 | |
| 993 | end += end_len; |
| 994 | shift += end_len; |
| 995 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 996 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 997 | /* Keep track of the change in the current line. */ |
| 998 | if (openfile->mark_set && openfile->mark_begin == |
| 999 | paragraph && openfile->mark_begin_x >= end - |
| 1000 | paragraph->data) |
| 1001 | mark_shift += end_len; |
| 1002 | #endif |
| 1003 | } |
| 1004 | /* If this character is neither blank nor punctuation, leave it |
David Lawrence Ramsey | 30bdadd | 2005-12-31 21:08:10 +0000 | [diff] [blame] | 1005 | * unchanged. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1006 | } else { |
David Lawrence Ramsey | 30bdadd | 2005-12-31 21:08:10 +0000 | [diff] [blame] | 1007 | end_len = parse_mbchar(end, NULL, NULL); |
| 1008 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1009 | while (end_len > 0) { |
| 1010 | *new_end = *end; |
| 1011 | new_end++; |
| 1012 | end++; |
| 1013 | end_len--; |
| 1014 | } |
| 1015 | } |
| 1016 | } |
| 1017 | |
| 1018 | assert(*end == '\0'); |
| 1019 | |
| 1020 | *new_end = *end; |
| 1021 | |
David Lawrence Ramsey | 30bdadd | 2005-12-31 21:08:10 +0000 | [diff] [blame] | 1022 | /* If there are spaces at the end of the line, remove them. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1023 | while (new_end > new_paragraph_data + skip && |
| 1024 | *(new_end - 1) == ' ') { |
| 1025 | new_end--; |
| 1026 | shift++; |
| 1027 | } |
| 1028 | |
| 1029 | if (shift > 0) { |
| 1030 | openfile->totsize -= shift; |
| 1031 | null_at(&new_paragraph_data, new_end - new_paragraph_data); |
| 1032 | free(paragraph->data); |
| 1033 | paragraph->data = new_paragraph_data; |
| 1034 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1035 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1036 | /* Adjust the mark coordinates to compensate for the change in |
| 1037 | * the current line. */ |
| 1038 | if (openfile->mark_set && openfile->mark_begin == paragraph) { |
| 1039 | openfile->mark_begin_x -= mark_shift; |
| 1040 | if (openfile->mark_begin_x > new_end - new_paragraph_data) |
| 1041 | openfile->mark_begin_x = new_end - new_paragraph_data; |
| 1042 | } |
| 1043 | #endif |
| 1044 | } else |
| 1045 | free(new_paragraph_data); |
| 1046 | } |
| 1047 | |
| 1048 | /* The "quote part" of a line is the largest initial substring matching |
| 1049 | * the quote string. This function returns the length of the quote part |
| 1050 | * of the given line. |
| 1051 | * |
| 1052 | * Note that if !HAVE_REGEX_H then we match concatenated copies of |
| 1053 | * quotestr. */ |
| 1054 | size_t quote_length(const char *line) |
| 1055 | { |
| 1056 | #ifdef HAVE_REGEX_H |
| 1057 | regmatch_t matches; |
| 1058 | int rc = regexec("ereg, line, 1, &matches, 0); |
| 1059 | |
| 1060 | if (rc == REG_NOMATCH || matches.rm_so == (regoff_t)-1) |
| 1061 | return 0; |
| 1062 | /* matches.rm_so should be 0, since the quote string should start |
| 1063 | * with the caret ^. */ |
| 1064 | return matches.rm_eo; |
| 1065 | #else /* !HAVE_REGEX_H */ |
| 1066 | size_t qdepth = 0; |
| 1067 | |
| 1068 | /* Compute quote depth level. */ |
| 1069 | while (strncmp(line + qdepth, quotestr, quotelen) == 0) |
| 1070 | qdepth += quotelen; |
| 1071 | return qdepth; |
| 1072 | #endif /* !HAVE_REGEX_H */ |
| 1073 | } |
| 1074 | |
| 1075 | /* a_line and b_line are lines of text. The quotation part of a_line is |
| 1076 | * the first a_quote characters. Check that the quotation part of |
| 1077 | * b_line is the same. */ |
| 1078 | bool quotes_match(const char *a_line, size_t a_quote, const char |
| 1079 | *b_line) |
| 1080 | { |
| 1081 | /* Here is the assumption about a_quote. */ |
| 1082 | assert(a_quote == quote_length(a_line)); |
| 1083 | |
| 1084 | return (a_quote == quote_length(b_line) && |
| 1085 | strncmp(a_line, b_line, a_quote) == 0); |
| 1086 | } |
| 1087 | |
| 1088 | /* We assume a_line and b_line have no quote part. Then, we return |
| 1089 | * whether b_line could follow a_line in a paragraph. */ |
| 1090 | bool indents_match(const char *a_line, size_t a_indent, const char |
| 1091 | *b_line, size_t b_indent) |
| 1092 | { |
| 1093 | assert(a_indent == indent_length(a_line)); |
| 1094 | assert(b_indent == indent_length(b_line)); |
| 1095 | |
| 1096 | return (b_indent <= a_indent && |
| 1097 | strncmp(a_line, b_line, b_indent) == 0); |
| 1098 | } |
| 1099 | |
| 1100 | /* Is foo the beginning of a paragraph? |
| 1101 | * |
| 1102 | * A line of text consists of a "quote part", followed by an |
| 1103 | * "indentation part", followed by text. The functions quote_length() |
| 1104 | * and indent_length() calculate these parts. |
| 1105 | * |
| 1106 | * A line is "part of a paragraph" if it has a part not in the quote |
| 1107 | * part or the indentation. |
| 1108 | * |
| 1109 | * A line is "the beginning of a paragraph" if it is part of a |
| 1110 | * paragraph and |
| 1111 | * 1) it is the top line of the file, or |
| 1112 | * 2) the line above it is not part of a paragraph, or |
| 1113 | * 3) the line above it does not have precisely the same quote |
| 1114 | * part, or |
| 1115 | * 4) the indentation of this line is not an initial substring of |
| 1116 | * the indentation of the previous line, or |
| 1117 | * 5) this line has no quote part and some indentation, and |
| 1118 | * autoindent isn't turned on. |
| 1119 | * The reason for number 5) is that if autoindent isn't turned on, |
| 1120 | * then an indented line is expected to start a paragraph, as in |
| 1121 | * books. Thus, nano can justify an indented paragraph only if |
| 1122 | * autoindent is turned on. */ |
| 1123 | bool begpar(const filestruct *const foo) |
| 1124 | { |
David Lawrence Ramsey | 0083bd2 | 2005-11-09 18:26:44 +0000 | [diff] [blame] | 1125 | size_t quote_len, indent_len, temp_id_len; |
| 1126 | |
| 1127 | if (foo == NULL) |
| 1128 | return FALSE; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1129 | |
| 1130 | /* Case 1). */ |
David Lawrence Ramsey | 0083bd2 | 2005-11-09 18:26:44 +0000 | [diff] [blame] | 1131 | if (foo == openfile->fileage) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1132 | return TRUE; |
| 1133 | |
| 1134 | quote_len = quote_length(foo->data); |
| 1135 | indent_len = indent_length(foo->data + quote_len); |
| 1136 | |
| 1137 | /* Not part of a paragraph. */ |
| 1138 | if (foo->data[quote_len + indent_len] == '\0') |
| 1139 | return FALSE; |
| 1140 | |
| 1141 | /* Case 3). */ |
| 1142 | if (!quotes_match(foo->data, quote_len, foo->prev->data)) |
| 1143 | return TRUE; |
| 1144 | |
| 1145 | temp_id_len = indent_length(foo->prev->data + quote_len); |
| 1146 | |
| 1147 | /* Case 2) or 5) or 4). */ |
| 1148 | if (foo->prev->data[quote_len + temp_id_len] == '\0' || |
| 1149 | (quote_len == 0 && indent_len > 0 |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1150 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1151 | && !ISSET(AUTOINDENT) |
| 1152 | #endif |
| 1153 | ) || !indents_match(foo->prev->data + quote_len, temp_id_len, |
| 1154 | foo->data + quote_len, indent_len)) |
| 1155 | return TRUE; |
| 1156 | |
| 1157 | return FALSE; |
| 1158 | } |
| 1159 | |
| 1160 | /* Is foo inside a paragraph? */ |
| 1161 | bool inpar(const filestruct *const foo) |
| 1162 | { |
| 1163 | size_t quote_len; |
| 1164 | |
| 1165 | if (foo == NULL) |
| 1166 | return FALSE; |
| 1167 | |
| 1168 | quote_len = quote_length(foo->data); |
| 1169 | |
David Lawrence Ramsey | 2101403 | 2005-11-09 20:33:42 +0000 | [diff] [blame] | 1170 | return (foo->data[quote_len + indent_length(foo->data + |
| 1171 | quote_len)] != '\0'); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1172 | } |
| 1173 | |
David Lawrence Ramsey | af5a999 | 2005-11-09 23:06:44 +0000 | [diff] [blame] | 1174 | /* Move the next par_len lines, starting with first_line, into the |
David Lawrence Ramsey | 8bd960b | 2005-11-09 18:49:16 +0000 | [diff] [blame] | 1175 | * justify buffer, leaving copies of those lines in place. Assume that |
| 1176 | * par_len is greater than zero, and that there are enough lines after |
David Lawrence Ramsey | cd8f735 | 2005-11-10 21:20:32 +0000 | [diff] [blame] | 1177 | * first_line. */ |
| 1178 | void backup_lines(filestruct *first_line, size_t par_len) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1179 | { |
| 1180 | filestruct *top = first_line; |
| 1181 | /* The top of the paragraph we're backing up. */ |
| 1182 | filestruct *bot = first_line; |
| 1183 | /* The bottom of the paragraph we're backing up. */ |
| 1184 | size_t i; |
| 1185 | /* Generic loop variable. */ |
| 1186 | size_t current_x_save = openfile->current_x; |
| 1187 | ssize_t fl_lineno_save = first_line->lineno; |
| 1188 | ssize_t edittop_lineno_save = openfile->edittop->lineno; |
| 1189 | ssize_t current_lineno_save = openfile->current->lineno; |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1190 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1191 | bool old_mark_set = openfile->mark_set; |
| 1192 | ssize_t mb_lineno_save = 0; |
| 1193 | size_t mark_begin_x_save = 0; |
| 1194 | |
| 1195 | if (old_mark_set) { |
| 1196 | mb_lineno_save = openfile->mark_begin->lineno; |
| 1197 | mark_begin_x_save = openfile->mark_begin_x; |
| 1198 | } |
| 1199 | #endif |
| 1200 | |
David Lawrence Ramsey | b2d1c5f | 2005-11-10 06:01:41 +0000 | [diff] [blame] | 1201 | /* par_len will be one greater than the number of lines between |
| 1202 | * current and filebot if filebot is the last line in the |
| 1203 | * paragraph. */ |
David Lawrence Ramsey | 8bd960b | 2005-11-09 18:49:16 +0000 | [diff] [blame] | 1204 | assert(par_len > 0 && openfile->current->lineno + par_len <= |
David Lawrence Ramsey | 24777c0 | 2005-12-01 05:49:08 +0000 | [diff] [blame] | 1205 | openfile->filebot->lineno + 1); |
David Lawrence Ramsey | 8bd960b | 2005-11-09 18:49:16 +0000 | [diff] [blame] | 1206 | |
David Lawrence Ramsey | 5c33e88 | 2005-11-09 18:58:04 +0000 | [diff] [blame] | 1207 | /* Move bot down par_len lines to the line after the last line of |
| 1208 | * the paragraph, if there is one. */ |
| 1209 | for (i = par_len; i > 0 && bot != openfile->filebot; i--) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1210 | bot = bot->next; |
| 1211 | |
| 1212 | /* Move the paragraph from the current buffer's filestruct to the |
| 1213 | * justify buffer. */ |
David Lawrence Ramsey | 5c33e88 | 2005-11-09 18:58:04 +0000 | [diff] [blame] | 1214 | move_to_filestruct(&jusbuffer, &jusbottom, top, 0, bot, |
David Lawrence Ramsey | f0575cf | 2005-11-09 23:27:51 +0000 | [diff] [blame] | 1215 | (i == 1 && bot == openfile->filebot) ? strlen(bot->data) : 0); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1216 | |
| 1217 | /* Copy the paragraph back to the current buffer's filestruct from |
| 1218 | * the justify buffer. */ |
| 1219 | copy_from_filestruct(jusbuffer, jusbottom); |
| 1220 | |
| 1221 | /* Move upward from the last line of the paragraph to the first |
| 1222 | * line, putting first_line, edittop, current, and mark_begin at the |
| 1223 | * same lines in the copied paragraph that they had in the original |
| 1224 | * paragraph. */ |
David Lawrence Ramsey | 5d6f127 | 2005-11-10 03:32:59 +0000 | [diff] [blame] | 1225 | if (openfile->current != openfile->fileage) |
David Lawrence Ramsey | 5c33e88 | 2005-11-09 18:58:04 +0000 | [diff] [blame] | 1226 | top = openfile->current->prev; |
| 1227 | else |
| 1228 | top = openfile->current; |
David Lawrence Ramsey | e8d505b | 2005-11-10 03:40:45 +0000 | [diff] [blame] | 1229 | for (i = par_len; i > 0 && top != NULL; i--) { |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1230 | if (top->lineno == fl_lineno_save) |
| 1231 | first_line = top; |
| 1232 | if (top->lineno == edittop_lineno_save) |
| 1233 | openfile->edittop = top; |
| 1234 | if (top->lineno == current_lineno_save) |
| 1235 | openfile->current = top; |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1236 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1237 | if (old_mark_set && top->lineno == mb_lineno_save) { |
| 1238 | openfile->mark_begin = top; |
| 1239 | openfile->mark_begin_x = mark_begin_x_save; |
| 1240 | } |
| 1241 | #endif |
| 1242 | top = top->prev; |
| 1243 | } |
| 1244 | |
| 1245 | /* Put current_x at the same place in the copied paragraph that it |
| 1246 | * had in the original paragraph. */ |
| 1247 | openfile->current_x = current_x_save; |
| 1248 | |
| 1249 | set_modified(); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1250 | } |
| 1251 | |
David Lawrence Ramsey | 79383be | 2005-11-29 18:34:45 +0000 | [diff] [blame] | 1252 | /* Find the beginning of the current paragraph if we're in one, or the |
| 1253 | * beginning of the next paragraph if we're not. Afterwards, save the |
| 1254 | * quote length and paragraph length in *quote and *par. Return TRUE if |
| 1255 | * we found a paragraph, or FALSE if there was an error or we didn't |
| 1256 | * find a paragraph. |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1257 | * |
| 1258 | * See the comment at begpar() for more about when a line is the |
| 1259 | * beginning of a paragraph. */ |
David Lawrence Ramsey | 79383be | 2005-11-29 18:34:45 +0000 | [diff] [blame] | 1260 | bool find_paragraph(size_t *const quote, size_t *const par) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1261 | { |
| 1262 | size_t quote_len; |
| 1263 | /* Length of the initial quotation of the paragraph we search |
| 1264 | * for. */ |
| 1265 | size_t par_len; |
| 1266 | /* Number of lines in the paragraph we search for. */ |
| 1267 | filestruct *current_save; |
| 1268 | /* The line at the beginning of the paragraph we search for. */ |
| 1269 | ssize_t current_y_save; |
| 1270 | /* The y-coordinate at the beginning of the paragraph we search |
| 1271 | * for. */ |
| 1272 | |
| 1273 | #ifdef HAVE_REGEX_H |
| 1274 | if (quoterc != 0) { |
| 1275 | statusbar(_("Bad quote string %s: %s"), quotestr, quoteerr); |
| 1276 | return FALSE; |
| 1277 | } |
| 1278 | #endif |
| 1279 | |
| 1280 | assert(openfile->current != NULL); |
| 1281 | |
David Lawrence Ramsey | 1be131a | 2005-11-11 03:55:52 +0000 | [diff] [blame] | 1282 | /* If we're at the end of the last line of the file, it means that |
| 1283 | * there aren't any paragraphs left, so get out. */ |
| 1284 | if (openfile->current == openfile->filebot && openfile->current_x == |
| 1285 | strlen(openfile->filebot->data)) |
| 1286 | return FALSE; |
| 1287 | |
| 1288 | /* If the current line isn't in a paragraph, move forward to the |
David Lawrence Ramsey | d82dae0 | 2005-11-11 05:13:28 +0000 | [diff] [blame] | 1289 | * last line of the next paragraph, if any. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1290 | if (!inpar(openfile->current)) { |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1291 | do_para_end(FALSE); |
David Lawrence Ramsey | 9a065c0 | 2005-11-29 18:25:53 +0000 | [diff] [blame] | 1292 | |
David Lawrence Ramsey | d82dae0 | 2005-11-11 05:13:28 +0000 | [diff] [blame] | 1293 | /* If we end up past the beginning of the line, it means that |
| 1294 | * we're at the end of the last line of the file, and the line |
| 1295 | * isn't blank, in which case the last line of the file is the |
| 1296 | * last line of the next paragraph. |
| 1297 | * |
| 1298 | * Otherwise, if we end up on a line that's in a paragraph, it |
| 1299 | * means that we're on the line after the last line of the next |
| 1300 | * paragraph, in which case we should move back to the last line |
| 1301 | * of the next paragraph. */ |
| 1302 | if (openfile->current_x == 0) { |
| 1303 | if (!inpar(openfile->current->prev)) |
| 1304 | return FALSE; |
| 1305 | if (openfile->current != openfile->fileage) |
| 1306 | openfile->current = openfile->current->prev; |
| 1307 | } |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1308 | } |
David Lawrence Ramsey | 9a065c0 | 2005-11-29 18:25:53 +0000 | [diff] [blame] | 1309 | |
David Lawrence Ramsey | d82dae0 | 2005-11-11 05:13:28 +0000 | [diff] [blame] | 1310 | /* If the current line isn't the first line of the paragraph, move |
David Lawrence Ramsey | 79383be | 2005-11-29 18:34:45 +0000 | [diff] [blame] | 1311 | * back to the first line of the paragraph. */ |
| 1312 | if (!begpar(openfile->current)) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1313 | do_para_begin(FALSE); |
| 1314 | |
| 1315 | /* Now current is the first line of the paragraph. Set quote_len to |
| 1316 | * the quotation length of that line, and set par_len to the number |
David Lawrence Ramsey | d82dae0 | 2005-11-11 05:13:28 +0000 | [diff] [blame] | 1317 | * of lines in this paragraph. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1318 | quote_len = quote_length(openfile->current->data); |
| 1319 | current_save = openfile->current; |
| 1320 | current_y_save = openfile->current_y; |
| 1321 | do_para_end(FALSE); |
| 1322 | par_len = openfile->current->lineno - current_save->lineno; |
David Lawrence Ramsey | 9a065c0 | 2005-11-29 18:25:53 +0000 | [diff] [blame] | 1323 | |
David Lawrence Ramsey | d82dae0 | 2005-11-11 05:13:28 +0000 | [diff] [blame] | 1324 | /* If we end up past the beginning of the line, it means that we're |
| 1325 | * at the end of the last line of the file, and the line isn't |
| 1326 | * blank, in which case the last line of the file is part of the |
| 1327 | * paragraph. */ |
David Lawrence Ramsey | bdff665 | 2005-11-11 04:14:33 +0000 | [diff] [blame] | 1328 | if (openfile->current_x > 0) |
| 1329 | par_len++; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1330 | openfile->current = current_save; |
| 1331 | openfile->current_y = current_y_save; |
| 1332 | |
| 1333 | /* Save the values of quote_len and par_len. */ |
| 1334 | assert(quote != NULL && par != NULL); |
| 1335 | |
| 1336 | *quote = quote_len; |
| 1337 | *par = par_len; |
| 1338 | |
| 1339 | return TRUE; |
| 1340 | } |
| 1341 | |
| 1342 | /* If full_justify is TRUE, justify the entire file. Otherwise, justify |
| 1343 | * the current paragraph. */ |
| 1344 | void do_justify(bool full_justify) |
| 1345 | { |
| 1346 | filestruct *first_par_line = NULL; |
David Lawrence Ramsey | a685468 | 2005-11-30 21:19:42 +0000 | [diff] [blame] | 1347 | /* Will be the first line of the justified paragraph(s), if any. |
| 1348 | * For restoring after unjustify. */ |
David Lawrence Ramsey | 874ec8f | 2005-11-10 19:28:27 +0000 | [diff] [blame] | 1349 | filestruct *last_par_line = NULL; |
David Lawrence Ramsey | 2c5d0ec | 2005-11-09 19:06:01 +0000 | [diff] [blame] | 1350 | /* Will be the line after the last line of the justified |
David Lawrence Ramsey | a685468 | 2005-11-30 21:19:42 +0000 | [diff] [blame] | 1351 | * paragraph(s), if any. Also for restoring after unjustify. */ |
David Lawrence Ramsey | 82b5deb | 2005-11-10 06:07:57 +0000 | [diff] [blame] | 1352 | bool filebot_inpar = FALSE; |
David Lawrence Ramsey | b2d1c5f | 2005-11-10 06:01:41 +0000 | [diff] [blame] | 1353 | /* Whether the text at filebot is part of the current |
| 1354 | * paragraph. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1355 | |
David Lawrence Ramsey | 520a90c | 2005-07-25 21:23:11 +0000 | [diff] [blame] | 1356 | /* We save these variables to be restored if the user |
| 1357 | * unjustifies. */ |
David Lawrence Ramsey | 52161ee | 2005-11-10 19:56:26 +0000 | [diff] [blame] | 1358 | filestruct *edittop_save = openfile->edittop; |
| 1359 | filestruct *current_save = openfile->current; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1360 | size_t current_x_save = openfile->current_x; |
| 1361 | size_t pww_save = openfile->placewewant; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1362 | size_t totsize_save = openfile->totsize; |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1363 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1364 | filestruct *mark_begin_save = openfile->mark_begin; |
| 1365 | size_t mark_begin_x_save = openfile->mark_begin_x; |
| 1366 | #endif |
David Lawrence Ramsey | 52161ee | 2005-11-10 19:56:26 +0000 | [diff] [blame] | 1367 | bool modified_save = openfile->modified; |
| 1368 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1369 | int kbinput; |
| 1370 | bool meta_key, func_key, s_or_t, ran_func, finished; |
| 1371 | |
David Lawrence Ramsey | 2c5d0ec | 2005-11-09 19:06:01 +0000 | [diff] [blame] | 1372 | /* Move to the beginning of the current line, so that justifying at |
David Lawrence Ramsey | bdff665 | 2005-11-11 04:14:33 +0000 | [diff] [blame] | 1373 | * the end of the last line of the file, if that line isn't blank, |
| 1374 | * will work the first time through. */ |
David Lawrence Ramsey | 2c5d0ec | 2005-11-09 19:06:01 +0000 | [diff] [blame] | 1375 | openfile->current_x = 0; |
| 1376 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1377 | /* If we're justifying the entire file, start at the beginning. */ |
| 1378 | if (full_justify) |
| 1379 | openfile->current = openfile->fileage; |
| 1380 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1381 | while (TRUE) { |
| 1382 | size_t i; |
| 1383 | /* Generic loop variable. */ |
David Lawrence Ramsey | a685468 | 2005-11-30 21:19:42 +0000 | [diff] [blame] | 1384 | filestruct *curr_first_par_line; |
| 1385 | /* The first line of the current paragraph. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1386 | size_t quote_len; |
David Lawrence Ramsey | a685468 | 2005-11-30 21:19:42 +0000 | [diff] [blame] | 1387 | /* Length of the initial quotation of the current |
| 1388 | * paragraph. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1389 | size_t indent_len; |
David Lawrence Ramsey | a685468 | 2005-11-30 21:19:42 +0000 | [diff] [blame] | 1390 | /* Length of the initial indentation of the current |
| 1391 | * paragraph. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1392 | size_t par_len; |
David Lawrence Ramsey | a685468 | 2005-11-30 21:19:42 +0000 | [diff] [blame] | 1393 | /* Number of lines in the current paragraph. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1394 | ssize_t break_pos; |
| 1395 | /* Where we will break lines. */ |
| 1396 | char *indent_string; |
| 1397 | /* The first indentation that doesn't match the initial |
David Lawrence Ramsey | a685468 | 2005-11-30 21:19:42 +0000 | [diff] [blame] | 1398 | * indentation of the current paragraph. This is put at the |
| 1399 | * beginning of every line broken off the first justified |
| 1400 | * line of the paragraph. Note that this works because a |
| 1401 | * paragraph can only contain two indentations at most: the |
| 1402 | * initial one, and a different one starting on a line after |
| 1403 | * the first. See the comment at begpar() for more about |
| 1404 | * when a line is part of a paragraph. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1405 | |
| 1406 | /* Find the first line of the paragraph to be justified. That |
| 1407 | * is the start of this paragraph if we're in one, or the start |
| 1408 | * of the next otherwise. Save the quote length and paragraph |
| 1409 | * length (number of lines). Don't refresh the screen yet, |
| 1410 | * since we'll do that after we justify. |
| 1411 | * |
| 1412 | * If the search failed, we do one of two things. If we're |
David Lawrence Ramsey | 8b203d6 | 2005-11-11 03:17:44 +0000 | [diff] [blame] | 1413 | * justifying the whole file, and we've found at least one |
| 1414 | * paragraph, it means that we should justify all the way to the |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1415 | * last line of the file, so set the last line of the text to be |
| 1416 | * justified to the last line of the file and break out of the |
| 1417 | * loop. Otherwise, it means that there are no paragraph(s) to |
| 1418 | * justify, so refresh the screen and get out. */ |
David Lawrence Ramsey | 79383be | 2005-11-29 18:34:45 +0000 | [diff] [blame] | 1419 | if (!find_paragraph("e_len, &par_len)) { |
David Lawrence Ramsey | 8b203d6 | 2005-11-11 03:17:44 +0000 | [diff] [blame] | 1420 | if (full_justify && first_par_line != NULL) { |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1421 | last_par_line = openfile->filebot; |
| 1422 | break; |
| 1423 | } else { |
| 1424 | edit_refresh(); |
| 1425 | return; |
| 1426 | } |
| 1427 | } |
| 1428 | |
David Lawrence Ramsey | b2d1c5f | 2005-11-10 06:01:41 +0000 | [diff] [blame] | 1429 | /* par_len will be one greater than the number of lines between |
| 1430 | * current and filebot if filebot is the last line in the |
| 1431 | * paragraph. Set filebot_inpar to TRUE if this is the case. */ |
| 1432 | filebot_inpar = (openfile->current->lineno + par_len == |
| 1433 | openfile->filebot->lineno + 1); |
| 1434 | |
David Lawrence Ramsey | cd8f735 | 2005-11-10 21:20:32 +0000 | [diff] [blame] | 1435 | /* If we haven't already done it, move the original paragraph(s) |
| 1436 | * to the justify buffer, splice a copy of the original |
| 1437 | * paragraph(s) into the file in the same place, and set |
| 1438 | * first_par_line to the first line of the copy. */ |
| 1439 | if (first_par_line == NULL) { |
| 1440 | backup_lines(openfile->current, full_justify ? |
David Lawrence Ramsey | 53f641f | 2005-11-10 21:57:56 +0000 | [diff] [blame] | 1441 | openfile->filebot->lineno - openfile->current->lineno + |
| 1442 | ((openfile->filebot->data[0] != '\0') ? 1 : 0) : |
David Lawrence Ramsey | af5a999 | 2005-11-09 23:06:44 +0000 | [diff] [blame] | 1443 | par_len); |
David Lawrence Ramsey | cd8f735 | 2005-11-10 21:20:32 +0000 | [diff] [blame] | 1444 | first_par_line = openfile->current; |
| 1445 | } |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1446 | |
David Lawrence Ramsey | a685468 | 2005-11-30 21:19:42 +0000 | [diff] [blame] | 1447 | /* Set curr_first_par_line to the first line of the current |
| 1448 | * paragraph. */ |
| 1449 | curr_first_par_line = openfile->current; |
| 1450 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1451 | /* Initialize indent_string to a blank string. */ |
| 1452 | indent_string = mallocstrcpy(NULL, ""); |
| 1453 | |
| 1454 | /* Find the first indentation in the paragraph that doesn't |
| 1455 | * match the indentation of the first line, and save it in |
| 1456 | * indent_string. If all the indentations are the same, save |
| 1457 | * the indentation of the first line in indent_string. */ |
| 1458 | { |
| 1459 | const filestruct *indent_line = openfile->current; |
| 1460 | bool past_first_line = FALSE; |
| 1461 | |
| 1462 | for (i = 0; i < par_len; i++) { |
| 1463 | indent_len = quote_len + |
| 1464 | indent_length(indent_line->data + quote_len); |
| 1465 | |
| 1466 | if (indent_len != strlen(indent_string)) { |
| 1467 | indent_string = mallocstrncpy(indent_string, |
| 1468 | indent_line->data, indent_len + 1); |
| 1469 | indent_string[indent_len] = '\0'; |
| 1470 | |
| 1471 | if (past_first_line) |
| 1472 | break; |
| 1473 | } |
| 1474 | |
| 1475 | if (indent_line == openfile->current) |
| 1476 | past_first_line = TRUE; |
| 1477 | |
| 1478 | indent_line = indent_line->next; |
| 1479 | } |
| 1480 | } |
| 1481 | |
| 1482 | /* Now tack all the lines of the paragraph together, skipping |
| 1483 | * the quoting and indentation on all lines after the first. */ |
| 1484 | for (i = 0; i < par_len - 1; i++) { |
| 1485 | filestruct *next_line = openfile->current->next; |
| 1486 | size_t line_len = strlen(openfile->current->data); |
| 1487 | size_t next_line_len = |
| 1488 | strlen(openfile->current->next->data); |
| 1489 | |
| 1490 | indent_len = quote_len + |
| 1491 | indent_length(openfile->current->next->data + |
| 1492 | quote_len); |
| 1493 | |
| 1494 | next_line_len -= indent_len; |
| 1495 | openfile->totsize -= indent_len; |
| 1496 | |
| 1497 | /* We're just about to tack the next line onto this one. If |
| 1498 | * this line isn't empty, make sure it ends in a space. */ |
| 1499 | if (line_len > 0 && |
| 1500 | openfile->current->data[line_len - 1] != ' ') { |
| 1501 | line_len++; |
| 1502 | openfile->current->data = |
| 1503 | charealloc(openfile->current->data, |
| 1504 | line_len + 1); |
| 1505 | openfile->current->data[line_len - 1] = ' '; |
| 1506 | openfile->current->data[line_len] = '\0'; |
| 1507 | openfile->totsize++; |
| 1508 | } |
| 1509 | |
| 1510 | openfile->current->data = |
| 1511 | charealloc(openfile->current->data, line_len + |
| 1512 | next_line_len + 1); |
| 1513 | strcat(openfile->current->data, next_line->data + |
| 1514 | indent_len); |
| 1515 | |
David Lawrence Ramsey | 9bedc4b | 2005-11-09 19:51:48 +0000 | [diff] [blame] | 1516 | /* Don't destroy edittop or filebot! */ |
David Lawrence Ramsey | 32bd29e | 2005-11-09 03:44:23 +0000 | [diff] [blame] | 1517 | if (next_line == openfile->edittop) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1518 | openfile->edittop = openfile->current; |
David Lawrence Ramsey | 9bedc4b | 2005-11-09 19:51:48 +0000 | [diff] [blame] | 1519 | if (next_line == openfile->filebot) |
| 1520 | openfile->filebot = openfile->current; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1521 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1522 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1523 | /* Adjust the mark coordinates to compensate for the change |
| 1524 | * in the next line. */ |
| 1525 | if (openfile->mark_set && openfile->mark_begin == |
| 1526 | next_line) { |
| 1527 | openfile->mark_begin = openfile->current; |
| 1528 | openfile->mark_begin_x += line_len - indent_len; |
| 1529 | } |
| 1530 | #endif |
| 1531 | |
| 1532 | unlink_node(next_line); |
| 1533 | delete_node(next_line); |
| 1534 | |
| 1535 | /* If we've removed the next line, we need to go through |
| 1536 | * this line again. */ |
| 1537 | i--; |
| 1538 | |
| 1539 | par_len--; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1540 | openfile->totsize--; |
| 1541 | } |
| 1542 | |
| 1543 | /* Call justify_format() on the paragraph, which will remove |
| 1544 | * excess spaces from it and change all blank characters to |
| 1545 | * spaces. */ |
| 1546 | justify_format(openfile->current, quote_len + |
| 1547 | indent_length(openfile->current->data + quote_len)); |
| 1548 | |
David Lawrence Ramsey | 3f12ada | 2005-07-25 22:54:16 +0000 | [diff] [blame] | 1549 | while (par_len > 0 && strlenpt(openfile->current->data) > |
| 1550 | fill) { |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1551 | size_t line_len = strlen(openfile->current->data); |
| 1552 | |
| 1553 | indent_len = strlen(indent_string); |
| 1554 | |
| 1555 | /* If this line is too long, try to wrap it to the next line |
| 1556 | * to make it short enough. */ |
David Lawrence Ramsey | 3f12ada | 2005-07-25 22:54:16 +0000 | [diff] [blame] | 1557 | break_pos = break_line(openfile->current->data + indent_len, |
David Lawrence Ramsey | b9b2fd5 | 2005-11-22 21:13:36 +0000 | [diff] [blame] | 1558 | fill - strnlenpt(openfile->current->data, indent_len) |
| 1559 | #ifndef DISABLE_HELP |
| 1560 | , FALSE |
| 1561 | #endif |
| 1562 | ); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1563 | |
| 1564 | /* We can't break the line, or don't need to, so get out. */ |
| 1565 | if (break_pos == -1 || break_pos + indent_len == line_len) |
| 1566 | break; |
| 1567 | |
| 1568 | /* Move forward to the character after the indentation and |
| 1569 | * just after the space. */ |
| 1570 | break_pos += indent_len + 1; |
| 1571 | |
| 1572 | assert(break_pos <= line_len); |
| 1573 | |
| 1574 | /* Make a new line, and copy the text after where we're |
| 1575 | * going to break this line to the beginning of the new |
| 1576 | * line. */ |
| 1577 | splice_node(openfile->current, |
| 1578 | make_new_node(openfile->current), |
| 1579 | openfile->current->next); |
| 1580 | |
| 1581 | /* If this paragraph is non-quoted, and autoindent isn't |
| 1582 | * turned on, set the indentation length to zero so that the |
| 1583 | * indentation is treated as part of the line. */ |
| 1584 | if (quote_len == 0 |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1585 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1586 | && !ISSET(AUTOINDENT) |
| 1587 | #endif |
| 1588 | ) |
| 1589 | indent_len = 0; |
| 1590 | |
| 1591 | /* Copy the text after where we're going to break the |
| 1592 | * current line to the next line. */ |
| 1593 | openfile->current->next->data = charalloc(indent_len + 1 + |
| 1594 | line_len - break_pos); |
| 1595 | strncpy(openfile->current->next->data, indent_string, |
| 1596 | indent_len); |
| 1597 | strcpy(openfile->current->next->data + indent_len, |
| 1598 | openfile->current->data + break_pos); |
| 1599 | |
| 1600 | par_len++; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1601 | openfile->totsize += indent_len + 1; |
| 1602 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1603 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1604 | /* Adjust the mark coordinates to compensate for the change |
| 1605 | * in the current line. */ |
| 1606 | if (openfile->mark_set && openfile->mark_begin == |
| 1607 | openfile->current && openfile->mark_begin_x > |
| 1608 | break_pos) { |
| 1609 | openfile->mark_begin = openfile->current->next; |
| 1610 | openfile->mark_begin_x -= break_pos - indent_len; |
| 1611 | } |
| 1612 | #endif |
| 1613 | |
| 1614 | /* Break the current line. */ |
| 1615 | null_at(&openfile->current->data, break_pos); |
| 1616 | |
David Lawrence Ramsey | 5455b6a | 2005-11-09 20:17:12 +0000 | [diff] [blame] | 1617 | /* If the current line is the last line of the file, move |
David Lawrence Ramsey | b885c9c | 2005-11-10 05:20:25 +0000 | [diff] [blame] | 1618 | * the last line of the file down to the next line. */ |
David Lawrence Ramsey | 5455b6a | 2005-11-09 20:17:12 +0000 | [diff] [blame] | 1619 | if (openfile->filebot == openfile->current) |
| 1620 | openfile->filebot = openfile->filebot->next; |
| 1621 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1622 | /* Go to the next line. */ |
| 1623 | par_len--; |
David Lawrence Ramsey | 5455b6a | 2005-11-09 20:17:12 +0000 | [diff] [blame] | 1624 | openfile->current_y++; |
| 1625 | openfile->current = openfile->current->next; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1626 | } |
| 1627 | |
| 1628 | /* We're done breaking lines, so we don't need indent_string |
| 1629 | * anymore. */ |
| 1630 | free(indent_string); |
| 1631 | |
David Lawrence Ramsey | 5455b6a | 2005-11-09 20:17:12 +0000 | [diff] [blame] | 1632 | /* Go to the next line, if possible. If there is no next line, |
| 1633 | * move to the end of the current line. */ |
David Lawrence Ramsey | 2c5d0ec | 2005-11-09 19:06:01 +0000 | [diff] [blame] | 1634 | if (openfile->current != openfile->filebot) { |
| 1635 | openfile->current_y++; |
| 1636 | openfile->current = openfile->current->next; |
| 1637 | } else |
| 1638 | openfile->current_x = strlen(openfile->current->data); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1639 | |
David Lawrence Ramsey | a685468 | 2005-11-30 21:19:42 +0000 | [diff] [blame] | 1640 | /* Renumber the lines of the now-justified current paragraph, |
| 1641 | * since both find_paragraph() and edit_refresh() need the line |
| 1642 | * numbers to be right. */ |
| 1643 | renumber(curr_first_par_line); |
David Lawrence Ramsey | ad1b64c | 2005-11-29 19:00:09 +0000 | [diff] [blame] | 1644 | |
| 1645 | /* We've just finished justifying the paragraph. If we're not |
| 1646 | * justifying the entire file, break out of the loop. |
| 1647 | * Otherwise, continue the loop so that we justify all the |
| 1648 | * paragraphs in the file. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1649 | if (!full_justify) |
| 1650 | break; |
| 1651 | } |
| 1652 | |
| 1653 | /* We are now done justifying the paragraph or the file, so clean |
David Lawrence Ramsey | 874ec8f | 2005-11-10 19:28:27 +0000 | [diff] [blame] | 1654 | * up. current_y and totsize have been maintained above. If we |
David Lawrence Ramsey | ad1b64c | 2005-11-29 19:00:09 +0000 | [diff] [blame] | 1655 | * actually justified something, set last_par_line to the new end of |
| 1656 | * the paragraph. */ |
| 1657 | if (first_par_line != NULL) |
David Lawrence Ramsey | 874ec8f | 2005-11-10 19:28:27 +0000 | [diff] [blame] | 1658 | last_par_line = openfile->current; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1659 | |
| 1660 | edit_refresh(); |
| 1661 | |
David Lawrence Ramsey | fc0f8f8 | 2006-05-10 13:41:53 +0000 | [diff] [blame] | 1662 | #ifndef NANO_TINY |
David Lawrence Ramsey | 1c5af64 | 2006-05-10 15:15:06 +0000 | [diff] [blame] | 1663 | /* We're going to set jump_buf so that we return here after a |
| 1664 | * SIGWINCH instead of to main(). Indicate this. */ |
| 1665 | jump_buf_main = FALSE; |
| 1666 | |
David Lawrence Ramsey | fc0f8f8 | 2006-05-10 13:41:53 +0000 | [diff] [blame] | 1667 | /* Return here after a SIGWINCH. */ |
David Lawrence Ramsey | 1c5af64 | 2006-05-10 15:15:06 +0000 | [diff] [blame] | 1668 | sigsetjmp(jump_buf, 1); |
David Lawrence Ramsey | fc0f8f8 | 2006-05-10 13:41:53 +0000 | [diff] [blame] | 1669 | #endif |
| 1670 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1671 | statusbar(_("Can now UnJustify!")); |
| 1672 | |
| 1673 | /* If constant cursor position display is on, make sure the current |
| 1674 | * cursor position will be properly displayed on the statusbar. */ |
| 1675 | if (ISSET(CONST_UPDATE)) |
| 1676 | do_cursorpos(TRUE); |
| 1677 | |
| 1678 | /* Display the shortcut list with UnJustify. */ |
| 1679 | shortcut_init(TRUE); |
| 1680 | display_main_list(); |
| 1681 | |
| 1682 | /* Now get a keystroke and see if it's unjustify. If not, put back |
| 1683 | * the keystroke and return. */ |
| 1684 | kbinput = do_input(&meta_key, &func_key, &s_or_t, &ran_func, |
| 1685 | &finished, FALSE); |
| 1686 | |
David Lawrence Ramsey | b22c80a | 2006-05-06 13:41:59 +0000 | [diff] [blame] | 1687 | if (s_or_t && kbinput == NANO_UNJUSTIFY_KEY) { |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1688 | /* Splice the justify buffer back into the file, but only if we |
| 1689 | * actually justified something. */ |
| 1690 | if (first_par_line != NULL) { |
| 1691 | filestruct *top_save; |
| 1692 | |
| 1693 | /* Partition the filestruct so that it contains only the |
| 1694 | * text of the justified paragraph. */ |
| 1695 | filepart = partition_filestruct(first_par_line, 0, |
David Lawrence Ramsey | ccd1b7b | 2005-11-18 20:21:48 +0000 | [diff] [blame] | 1696 | last_par_line, filebot_inpar ? |
| 1697 | strlen(last_par_line->data) : 0); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1698 | |
| 1699 | /* Remove the text of the justified paragraph, and |
David Lawrence Ramsey | af5a999 | 2005-11-09 23:06:44 +0000 | [diff] [blame] | 1700 | * replace it with the text in the justify buffer. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1701 | free_filestruct(openfile->fileage); |
| 1702 | openfile->fileage = jusbuffer; |
| 1703 | openfile->filebot = jusbottom; |
| 1704 | |
| 1705 | top_save = openfile->fileage; |
| 1706 | |
| 1707 | /* Unpartition the filestruct so that it contains all the |
| 1708 | * text again. Note that the justified paragraph has been |
| 1709 | * replaced with the unjustified paragraph. */ |
| 1710 | unpartition_filestruct(&filepart); |
| 1711 | |
| 1712 | /* Renumber starting with the beginning line of the old |
| 1713 | * partition. */ |
| 1714 | renumber(top_save); |
| 1715 | |
David Lawrence Ramsey | 874ec8f | 2005-11-10 19:28:27 +0000 | [diff] [blame] | 1716 | /* Restore the justify we just did (ungrateful user!). */ |
| 1717 | openfile->edittop = edittop_save; |
| 1718 | openfile->current = current_save; |
| 1719 | openfile->current_x = current_x_save; |
| 1720 | openfile->placewewant = pww_save; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1721 | openfile->totsize = totsize_save; |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1722 | #ifndef NANO_TINY |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1723 | if (openfile->mark_set) { |
| 1724 | openfile->mark_begin = mark_begin_save; |
| 1725 | openfile->mark_begin_x = mark_begin_x_save; |
| 1726 | } |
| 1727 | #endif |
| 1728 | openfile->modified = modified_save; |
| 1729 | |
| 1730 | /* Clear the justify buffer. */ |
| 1731 | jusbuffer = NULL; |
| 1732 | |
| 1733 | if (!openfile->modified) |
| 1734 | titlebar(NULL); |
| 1735 | edit_refresh(); |
| 1736 | } |
| 1737 | } else { |
| 1738 | unget_kbinput(kbinput, meta_key, func_key); |
| 1739 | |
| 1740 | /* Blow away the text in the justify buffer. */ |
| 1741 | free_filestruct(jusbuffer); |
| 1742 | jusbuffer = NULL; |
| 1743 | } |
| 1744 | |
| 1745 | blank_statusbar(); |
| 1746 | |
| 1747 | /* Display the shortcut list with UnCut. */ |
| 1748 | shortcut_init(FALSE); |
| 1749 | display_main_list(); |
| 1750 | } |
| 1751 | |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 1752 | /* Justify the current paragraph. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1753 | void do_justify_void(void) |
| 1754 | { |
| 1755 | do_justify(FALSE); |
| 1756 | } |
| 1757 | |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 1758 | /* Justify the entire file. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 1759 | void do_full_justify(void) |
| 1760 | { |
| 1761 | do_justify(TRUE); |
| 1762 | } |
| 1763 | #endif /* !DISABLE_JUSTIFY */ |
| 1764 | |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1765 | #ifndef DISABLE_SPELLER |
| 1766 | /* A word is misspelled in the file. Let the user replace it. We |
| 1767 | * return FALSE if the user cancels. */ |
| 1768 | bool do_int_spell_fix(const char *word) |
| 1769 | { |
| 1770 | char *save_search, *save_replace; |
| 1771 | size_t match_len, current_x_save = openfile->current_x; |
| 1772 | size_t pww_save = openfile->placewewant; |
| 1773 | filestruct *edittop_save = openfile->edittop; |
| 1774 | filestruct *current_save = openfile->current; |
| 1775 | /* Save where we are. */ |
| 1776 | bool canceled = FALSE; |
| 1777 | /* The return value. */ |
| 1778 | bool case_sens_set = ISSET(CASE_SENSITIVE); |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1779 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1780 | bool backwards_search_set = ISSET(BACKWARDS_SEARCH); |
| 1781 | #endif |
| 1782 | #ifdef HAVE_REGEX_H |
| 1783 | bool regexp_set = ISSET(USE_REGEXP); |
| 1784 | #endif |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1785 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1786 | bool old_mark_set = openfile->mark_set; |
| 1787 | bool added_magicline = FALSE; |
| 1788 | /* Whether we added a magicline after filebot. */ |
| 1789 | bool right_side_up = FALSE; |
| 1790 | /* TRUE if (mark_begin, mark_begin_x) is the top of the mark, |
| 1791 | * FALSE if (current, current_x) is. */ |
| 1792 | filestruct *top, *bot; |
| 1793 | size_t top_x, bot_x; |
| 1794 | #endif |
| 1795 | |
| 1796 | /* Make sure spell-check is case sensitive. */ |
| 1797 | SET(CASE_SENSITIVE); |
| 1798 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1799 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1800 | /* Make sure spell-check goes forward only. */ |
| 1801 | UNSET(BACKWARDS_SEARCH); |
| 1802 | #endif |
| 1803 | #ifdef HAVE_REGEX_H |
| 1804 | /* Make sure spell-check doesn't use regular expressions. */ |
| 1805 | UNSET(USE_REGEXP); |
| 1806 | #endif |
| 1807 | |
| 1808 | /* Save the current search/replace strings. */ |
| 1809 | search_init_globals(); |
| 1810 | save_search = last_search; |
| 1811 | save_replace = last_replace; |
| 1812 | |
| 1813 | /* Set the search/replace strings to the misspelled word. */ |
| 1814 | last_search = mallocstrcpy(NULL, word); |
| 1815 | last_replace = mallocstrcpy(NULL, word); |
| 1816 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1817 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1818 | if (old_mark_set) { |
| 1819 | /* If the mark is on, partition the filestruct so that it |
David Lawrence Ramsey | 1e0e235 | 2005-11-08 18:34:12 +0000 | [diff] [blame] | 1820 | * contains only the marked text; if the NO_NEWLINES flag isn't |
| 1821 | * set, keep track of whether the text will have a magicline |
| 1822 | * added when we're done correcting misspelled words; and |
| 1823 | * turn the mark off. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1824 | mark_order((const filestruct **)&top, &top_x, |
| 1825 | (const filestruct **)&bot, &bot_x, &right_side_up); |
| 1826 | filepart = partition_filestruct(top, top_x, bot, bot_x); |
David Lawrence Ramsey | 1e0e235 | 2005-11-08 18:34:12 +0000 | [diff] [blame] | 1827 | if (!ISSET(NO_NEWLINES)) |
| 1828 | added_magicline = (openfile->filebot->data[0] != '\0'); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1829 | openfile->mark_set = FALSE; |
| 1830 | } |
| 1831 | #endif |
| 1832 | |
| 1833 | /* Start from the top of the file. */ |
| 1834 | openfile->edittop = openfile->fileage; |
| 1835 | openfile->current = openfile->fileage; |
| 1836 | openfile->current_x = (size_t)-1; |
| 1837 | openfile->placewewant = 0; |
| 1838 | |
David Lawrence Ramsey | c5c5230 | 2005-11-15 23:45:29 +0000 | [diff] [blame] | 1839 | /* Find the first whole occurrence of word. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1840 | findnextstr_wrap_reset(); |
David Lawrence Ramsey | c5c5230 | 2005-11-15 23:45:29 +0000 | [diff] [blame] | 1841 | while (findnextstr(TRUE, FALSE, openfile->fileage, 0, word, |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1842 | &match_len)) { |
| 1843 | if (is_whole_word(openfile->current_x, openfile->current->data, |
| 1844 | word)) { |
| 1845 | size_t xpt = xplustabs(); |
| 1846 | char *exp_word = display_string(openfile->current->data, |
| 1847 | xpt, strnlenpt(openfile->current->data, |
| 1848 | openfile->current_x + match_len) - xpt, FALSE); |
| 1849 | |
| 1850 | edit_refresh(); |
| 1851 | |
| 1852 | do_replace_highlight(TRUE, exp_word); |
| 1853 | |
| 1854 | /* Allow all instances of the word to be corrected. */ |
David Lawrence Ramsey | 9d8c284 | 2006-02-07 21:11:05 +0000 | [diff] [blame] | 1855 | canceled = (do_prompt(FALSE, |
| 1856 | #ifndef DISABLE_TABCOMP |
| 1857 | TRUE, |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1858 | #endif |
David Lawrence Ramsey | 9d8c284 | 2006-02-07 21:11:05 +0000 | [diff] [blame] | 1859 | spell_list, word, |
| 1860 | #ifndef NANO_TINY |
| 1861 | NULL, |
| 1862 | #endif |
David Lawrence Ramsey | 6816007 | 2006-02-18 21:32:29 +0000 | [diff] [blame] | 1863 | edit_refresh, _("Edit a replacement")) == -1); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1864 | |
| 1865 | do_replace_highlight(FALSE, exp_word); |
| 1866 | |
| 1867 | free(exp_word); |
| 1868 | |
| 1869 | if (!canceled && strcmp(word, answer) != 0) { |
| 1870 | openfile->current_x--; |
David Lawrence Ramsey | c5c5230 | 2005-11-15 23:45:29 +0000 | [diff] [blame] | 1871 | do_replace_loop(TRUE, &canceled, openfile->current, |
| 1872 | &openfile->current_x, word); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1873 | } |
| 1874 | |
| 1875 | break; |
| 1876 | } |
| 1877 | } |
| 1878 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1879 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1880 | if (old_mark_set) { |
David Lawrence Ramsey | 1e0e235 | 2005-11-08 18:34:12 +0000 | [diff] [blame] | 1881 | /* If the mark was on, the NO_NEWLINES flag isn't set, and we |
| 1882 | * added a magicline, remove it now. */ |
| 1883 | if (!ISSET(NO_NEWLINES) && added_magicline) |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1884 | remove_magicline(); |
| 1885 | |
| 1886 | /* Put the beginning and the end of the mark at the beginning |
| 1887 | * and the end of the spell-checked text. */ |
| 1888 | if (openfile->fileage == openfile->filebot) |
| 1889 | bot_x += top_x; |
| 1890 | if (right_side_up) { |
| 1891 | openfile->mark_begin_x = top_x; |
| 1892 | current_x_save = bot_x; |
| 1893 | } else { |
| 1894 | current_x_save = top_x; |
| 1895 | openfile->mark_begin_x = bot_x; |
| 1896 | } |
| 1897 | |
| 1898 | /* Unpartition the filestruct so that it contains all the text |
| 1899 | * again, and turn the mark back on. */ |
| 1900 | unpartition_filestruct(&filepart); |
| 1901 | openfile->mark_set = TRUE; |
| 1902 | } |
| 1903 | #endif |
| 1904 | |
| 1905 | /* Restore the search/replace strings. */ |
| 1906 | free(last_search); |
| 1907 | last_search = save_search; |
| 1908 | free(last_replace); |
| 1909 | last_replace = save_replace; |
| 1910 | |
| 1911 | /* Restore where we were. */ |
| 1912 | openfile->edittop = edittop_save; |
| 1913 | openfile->current = current_save; |
| 1914 | openfile->current_x = current_x_save; |
| 1915 | openfile->placewewant = pww_save; |
| 1916 | |
| 1917 | /* Restore case sensitivity setting. */ |
| 1918 | if (!case_sens_set) |
| 1919 | UNSET(CASE_SENSITIVE); |
| 1920 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 1921 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1922 | /* Restore search/replace direction. */ |
| 1923 | if (backwards_search_set) |
| 1924 | SET(BACKWARDS_SEARCH); |
| 1925 | #endif |
| 1926 | #ifdef HAVE_REGEX_H |
| 1927 | /* Restore regular expression usage setting. */ |
| 1928 | if (regexp_set) |
| 1929 | SET(USE_REGEXP); |
| 1930 | #endif |
| 1931 | |
| 1932 | return !canceled; |
| 1933 | } |
| 1934 | |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 1935 | /* Internal (integrated) spell checking using the spell program, |
| 1936 | * filtered through the sort and uniq programs. Return NULL for normal |
| 1937 | * termination, and the error string otherwise. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1938 | const char *do_int_speller(const char *tempfile_name) |
| 1939 | { |
| 1940 | char *read_buff, *read_buff_ptr, *read_buff_word; |
| 1941 | size_t pipe_buff_size, read_buff_size, read_buff_read, bytesread; |
| 1942 | int spell_fd[2], sort_fd[2], uniq_fd[2], tempfile_fd = -1; |
| 1943 | pid_t pid_spell, pid_sort, pid_uniq; |
| 1944 | int spell_status, sort_status, uniq_status; |
| 1945 | |
| 1946 | /* Create all three pipes up front. */ |
| 1947 | if (pipe(spell_fd) == -1 || pipe(sort_fd) == -1 || |
| 1948 | pipe(uniq_fd) == -1) |
| 1949 | return _("Could not create pipe"); |
| 1950 | |
| 1951 | statusbar(_("Creating misspelled word list, please wait...")); |
| 1952 | |
| 1953 | /* A new process to run spell in. */ |
| 1954 | if ((pid_spell = fork()) == 0) { |
| 1955 | /* Child continues (i.e, future spell process). */ |
| 1956 | close(spell_fd[0]); |
| 1957 | |
| 1958 | /* Replace the standard input with the temp file. */ |
| 1959 | if ((tempfile_fd = open(tempfile_name, O_RDONLY)) == -1) |
| 1960 | goto close_pipes_and_exit; |
| 1961 | |
| 1962 | if (dup2(tempfile_fd, STDIN_FILENO) != STDIN_FILENO) |
| 1963 | goto close_pipes_and_exit; |
| 1964 | |
| 1965 | close(tempfile_fd); |
| 1966 | |
| 1967 | /* Send spell's standard output to the pipe. */ |
| 1968 | if (dup2(spell_fd[1], STDOUT_FILENO) != STDOUT_FILENO) |
| 1969 | goto close_pipes_and_exit; |
| 1970 | |
| 1971 | close(spell_fd[1]); |
| 1972 | |
David Lawrence Ramsey | 3239ff2 | 2005-11-29 20:01:06 +0000 | [diff] [blame] | 1973 | /* Start the spell program; we are using $PATH. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 1974 | execlp("spell", "spell", NULL); |
| 1975 | |
| 1976 | /* This should not be reached if spell is found. */ |
| 1977 | exit(1); |
| 1978 | } |
| 1979 | |
| 1980 | /* Parent continues here. */ |
| 1981 | close(spell_fd[1]); |
| 1982 | |
| 1983 | /* A new process to run sort in. */ |
| 1984 | if ((pid_sort = fork()) == 0) { |
| 1985 | /* Child continues (i.e, future spell process). Replace the |
| 1986 | * standard input with the standard output of the old pipe. */ |
| 1987 | if (dup2(spell_fd[0], STDIN_FILENO) != STDIN_FILENO) |
| 1988 | goto close_pipes_and_exit; |
| 1989 | |
| 1990 | close(spell_fd[0]); |
| 1991 | |
| 1992 | /* Send sort's standard output to the new pipe. */ |
| 1993 | if (dup2(sort_fd[1], STDOUT_FILENO) != STDOUT_FILENO) |
| 1994 | goto close_pipes_and_exit; |
| 1995 | |
| 1996 | close(sort_fd[1]); |
| 1997 | |
| 1998 | /* Start the sort program. Use -f to remove mixed case. If |
| 1999 | * this isn't portable, let me know. */ |
| 2000 | execlp("sort", "sort", "-f", NULL); |
| 2001 | |
| 2002 | /* This should not be reached if sort is found. */ |
| 2003 | exit(1); |
| 2004 | } |
| 2005 | |
| 2006 | close(spell_fd[0]); |
| 2007 | close(sort_fd[1]); |
| 2008 | |
| 2009 | /* A new process to run uniq in. */ |
| 2010 | if ((pid_uniq = fork()) == 0) { |
| 2011 | /* Child continues (i.e, future uniq process). Replace the |
| 2012 | * standard input with the standard output of the old pipe. */ |
| 2013 | if (dup2(sort_fd[0], STDIN_FILENO) != STDIN_FILENO) |
| 2014 | goto close_pipes_and_exit; |
| 2015 | |
| 2016 | close(sort_fd[0]); |
| 2017 | |
| 2018 | /* Send uniq's standard output to the new pipe. */ |
| 2019 | if (dup2(uniq_fd[1], STDOUT_FILENO) != STDOUT_FILENO) |
| 2020 | goto close_pipes_and_exit; |
| 2021 | |
| 2022 | close(uniq_fd[1]); |
| 2023 | |
| 2024 | /* Start the uniq program; we are using PATH. */ |
| 2025 | execlp("uniq", "uniq", NULL); |
| 2026 | |
| 2027 | /* This should not be reached if uniq is found. */ |
| 2028 | exit(1); |
| 2029 | } |
| 2030 | |
| 2031 | close(sort_fd[0]); |
| 2032 | close(uniq_fd[1]); |
| 2033 | |
| 2034 | /* The child process was not forked successfully. */ |
| 2035 | if (pid_spell < 0 || pid_sort < 0 || pid_uniq < 0) { |
| 2036 | close(uniq_fd[0]); |
| 2037 | return _("Could not fork"); |
| 2038 | } |
| 2039 | |
| 2040 | /* Get the system pipe buffer size. */ |
| 2041 | if ((pipe_buff_size = fpathconf(uniq_fd[0], _PC_PIPE_BUF)) < 1) { |
| 2042 | close(uniq_fd[0]); |
| 2043 | return _("Could not get size of pipe buffer"); |
| 2044 | } |
| 2045 | |
| 2046 | /* Read in the returned spelling errors. */ |
| 2047 | read_buff_read = 0; |
| 2048 | read_buff_size = pipe_buff_size + 1; |
| 2049 | read_buff = read_buff_ptr = charalloc(read_buff_size); |
| 2050 | |
| 2051 | while ((bytesread = read(uniq_fd[0], read_buff_ptr, |
| 2052 | pipe_buff_size)) > 0) { |
| 2053 | read_buff_read += bytesread; |
| 2054 | read_buff_size += pipe_buff_size; |
| 2055 | read_buff = read_buff_ptr = charealloc(read_buff, |
| 2056 | read_buff_size); |
| 2057 | read_buff_ptr += read_buff_read; |
| 2058 | } |
| 2059 | |
| 2060 | *read_buff_ptr = '\0'; |
| 2061 | close(uniq_fd[0]); |
| 2062 | |
| 2063 | /* Process the spelling errors. */ |
| 2064 | read_buff_word = read_buff_ptr = read_buff; |
| 2065 | |
| 2066 | while (*read_buff_ptr != '\0') { |
| 2067 | if ((*read_buff_ptr == '\r') || (*read_buff_ptr == '\n')) { |
| 2068 | *read_buff_ptr = '\0'; |
| 2069 | if (read_buff_word != read_buff_ptr) { |
| 2070 | if (!do_int_spell_fix(read_buff_word)) { |
| 2071 | read_buff_word = read_buff_ptr; |
| 2072 | break; |
| 2073 | } |
| 2074 | } |
| 2075 | read_buff_word = read_buff_ptr + 1; |
| 2076 | } |
| 2077 | read_buff_ptr++; |
| 2078 | } |
| 2079 | |
| 2080 | /* Special case: the last word doesn't end with '\r' or '\n'. */ |
| 2081 | if (read_buff_word != read_buff_ptr) |
| 2082 | do_int_spell_fix(read_buff_word); |
| 2083 | |
| 2084 | free(read_buff); |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 2085 | search_replace_abort(); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2086 | edit_refresh(); |
| 2087 | |
| 2088 | /* Process the end of the spell process. */ |
| 2089 | waitpid(pid_spell, &spell_status, 0); |
| 2090 | waitpid(pid_sort, &sort_status, 0); |
| 2091 | waitpid(pid_uniq, &uniq_status, 0); |
| 2092 | |
| 2093 | if (WIFEXITED(spell_status) == 0 || WEXITSTATUS(spell_status)) |
| 2094 | return _("Error invoking \"spell\""); |
| 2095 | |
| 2096 | if (WIFEXITED(sort_status) == 0 || WEXITSTATUS(sort_status)) |
| 2097 | return _("Error invoking \"sort -f\""); |
| 2098 | |
| 2099 | if (WIFEXITED(uniq_status) == 0 || WEXITSTATUS(uniq_status)) |
| 2100 | return _("Error invoking \"uniq\""); |
| 2101 | |
| 2102 | /* Otherwise... */ |
| 2103 | return NULL; |
| 2104 | |
| 2105 | close_pipes_and_exit: |
| 2106 | /* Don't leak any handles. */ |
| 2107 | close(tempfile_fd); |
| 2108 | close(spell_fd[0]); |
| 2109 | close(spell_fd[1]); |
| 2110 | close(sort_fd[0]); |
| 2111 | close(sort_fd[1]); |
| 2112 | close(uniq_fd[0]); |
| 2113 | close(uniq_fd[1]); |
| 2114 | exit(1); |
| 2115 | } |
| 2116 | |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 2117 | /* External (alternate) spell checking. Return NULL for normal |
| 2118 | * termination, and the error string otherwise. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2119 | const char *do_alt_speller(char *tempfile_name) |
| 2120 | { |
| 2121 | int alt_spell_status; |
| 2122 | size_t current_x_save = openfile->current_x; |
| 2123 | size_t pww_save = openfile->placewewant; |
| 2124 | ssize_t current_y_save = openfile->current_y; |
| 2125 | ssize_t lineno_save = openfile->current->lineno; |
| 2126 | pid_t pid_spell; |
| 2127 | char *ptr; |
| 2128 | static int arglen = 3; |
| 2129 | static char **spellargs = NULL; |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 2130 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2131 | bool old_mark_set = openfile->mark_set; |
| 2132 | bool added_magicline = FALSE; |
| 2133 | /* Whether we added a magicline after filebot. */ |
| 2134 | bool right_side_up = FALSE; |
| 2135 | /* TRUE if (mark_begin, mark_begin_x) is the top of the mark, |
| 2136 | * FALSE if (current, current_x) is. */ |
| 2137 | filestruct *top, *bot; |
| 2138 | size_t top_x, bot_x; |
| 2139 | ssize_t mb_lineno_save = 0; |
| 2140 | /* We're going to close the current file, and open the output of |
| 2141 | * the alternate spell command. The line that mark_begin points |
| 2142 | * to will be freed, so we save the line number and restore it |
| 2143 | * afterwards. */ |
| 2144 | size_t totsize_save = openfile->totsize; |
| 2145 | /* Our saved value of totsize, used when we spell-check a marked |
| 2146 | * selection. */ |
| 2147 | |
| 2148 | if (old_mark_set) { |
| 2149 | /* If the mark is on, save the number of the line it starts on, |
| 2150 | * and then turn the mark off. */ |
| 2151 | mb_lineno_save = openfile->mark_begin->lineno; |
| 2152 | openfile->mark_set = FALSE; |
| 2153 | } |
| 2154 | #endif |
| 2155 | |
| 2156 | endwin(); |
| 2157 | |
| 2158 | /* Set up an argument list to pass execvp(). */ |
| 2159 | if (spellargs == NULL) { |
| 2160 | spellargs = (char **)nmalloc(arglen * sizeof(char *)); |
| 2161 | |
| 2162 | spellargs[0] = strtok(alt_speller, " "); |
| 2163 | while ((ptr = strtok(NULL, " ")) != NULL) { |
| 2164 | arglen++; |
| 2165 | spellargs = (char **)nrealloc(spellargs, arglen * |
| 2166 | sizeof(char *)); |
| 2167 | spellargs[arglen - 3] = ptr; |
| 2168 | } |
| 2169 | spellargs[arglen - 1] = NULL; |
| 2170 | } |
| 2171 | spellargs[arglen - 2] = tempfile_name; |
| 2172 | |
| 2173 | /* Start a new process for the alternate speller. */ |
| 2174 | if ((pid_spell = fork()) == 0) { |
David Lawrence Ramsey | 2e2112c | 2005-11-29 05:39:31 +0000 | [diff] [blame] | 2175 | /* Start alternate spell program; we are using $PATH. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2176 | execvp(spellargs[0], spellargs); |
| 2177 | |
| 2178 | /* Should not be reached, if alternate speller is found!!! */ |
| 2179 | exit(1); |
| 2180 | } |
| 2181 | |
| 2182 | /* If we couldn't fork, get out. */ |
| 2183 | if (pid_spell < 0) |
| 2184 | return _("Could not fork"); |
| 2185 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 2186 | #ifndef NANO_TINY |
David Lawrence Ramsey | b18482e | 2005-07-26 00:06:34 +0000 | [diff] [blame] | 2187 | /* Don't handle a pending SIGWINCH until the alternate spell checker |
David Lawrence Ramsey | 3fe08ac | 2005-07-26 01:17:16 +0000 | [diff] [blame] | 2188 | * is finished and we've loaded the spell-checked file back in. */ |
David Lawrence Ramsey | b18482e | 2005-07-26 00:06:34 +0000 | [diff] [blame] | 2189 | allow_pending_sigwinch(FALSE); |
| 2190 | #endif |
| 2191 | |
| 2192 | /* Wait for the alternate spell checker to finish. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2193 | wait(&alt_spell_status); |
| 2194 | |
David Lawrence Ramsey | 84fdb90 | 2005-08-14 20:08:49 +0000 | [diff] [blame] | 2195 | /* Reenter curses mode. */ |
| 2196 | doupdate(); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2197 | |
| 2198 | /* Restore the terminal to its previous state. */ |
| 2199 | terminal_init(); |
| 2200 | |
| 2201 | /* Turn the cursor back on for sure. */ |
| 2202 | curs_set(1); |
| 2203 | |
David Lawrence Ramsey | 3fe08ac | 2005-07-26 01:17:16 +0000 | [diff] [blame] | 2204 | /* The screen might have been resized. If it has, reinitialize all |
| 2205 | * the windows based on the new screen dimensions. */ |
| 2206 | window_init(); |
| 2207 | |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2208 | if (!WIFEXITED(alt_spell_status) || |
| 2209 | WEXITSTATUS(alt_spell_status) != 0) { |
| 2210 | char *altspell_error; |
| 2211 | char *invoke_error = _("Error invoking \"%s\""); |
| 2212 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 2213 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2214 | /* Turn the mark back on if it was on before. */ |
| 2215 | openfile->mark_set = old_mark_set; |
| 2216 | #endif |
| 2217 | |
| 2218 | altspell_error = |
| 2219 | charalloc(strlen(invoke_error) + |
| 2220 | strlen(alt_speller) + 1); |
| 2221 | sprintf(altspell_error, invoke_error, alt_speller); |
| 2222 | return altspell_error; |
| 2223 | } |
| 2224 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 2225 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2226 | if (old_mark_set) { |
David Lawrence Ramsey | 1e0e235 | 2005-11-08 18:34:12 +0000 | [diff] [blame] | 2227 | /* If the mark is on, partition the filestruct so that it |
| 2228 | * contains only the marked text; if the NO_NEWLINES flag isn't |
| 2229 | * set, keep track of whether the text will have a magicline |
| 2230 | * added when we're done correcting misspelled words; and |
| 2231 | * turn the mark off. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2232 | mark_order((const filestruct **)&top, &top_x, |
| 2233 | (const filestruct **)&bot, &bot_x, &right_side_up); |
| 2234 | filepart = partition_filestruct(top, top_x, bot, bot_x); |
David Lawrence Ramsey | 1e0e235 | 2005-11-08 18:34:12 +0000 | [diff] [blame] | 2235 | if (!ISSET(NO_NEWLINES)) |
| 2236 | added_magicline = (openfile->filebot->data[0] != '\0'); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2237 | |
| 2238 | /* Get the number of characters in the marked text, and subtract |
| 2239 | * it from the saved value of totsize. */ |
| 2240 | totsize_save -= get_totsize(top, bot); |
| 2241 | } |
| 2242 | #endif |
| 2243 | |
David Lawrence Ramsey | 9c984e8 | 2005-11-08 19:15:58 +0000 | [diff] [blame] | 2244 | /* Replace the text of the current buffer with the spell-checked |
| 2245 | * text. */ |
| 2246 | replace_buffer(tempfile_name); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2247 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 2248 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2249 | if (old_mark_set) { |
| 2250 | filestruct *top_save = openfile->fileage; |
| 2251 | |
David Lawrence Ramsey | 1e0e235 | 2005-11-08 18:34:12 +0000 | [diff] [blame] | 2252 | /* If the mark was on, the NO_NEWLINES flag isn't set, and we |
| 2253 | * added a magicline, remove it now. */ |
| 2254 | if (!ISSET(NO_NEWLINES) && added_magicline) |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2255 | remove_magicline(); |
| 2256 | |
| 2257 | /* Put the beginning and the end of the mark at the beginning |
| 2258 | * and the end of the spell-checked text. */ |
| 2259 | if (openfile->fileage == openfile->filebot) |
| 2260 | bot_x += top_x; |
| 2261 | if (right_side_up) { |
| 2262 | openfile->mark_begin_x = top_x; |
| 2263 | current_x_save = bot_x; |
| 2264 | } else { |
| 2265 | current_x_save = top_x; |
| 2266 | openfile->mark_begin_x = bot_x; |
| 2267 | } |
| 2268 | |
| 2269 | /* Unpartition the filestruct so that it contains all the text |
| 2270 | * again. Note that we've replaced the marked text originally |
| 2271 | * in the partition with the spell-checked marked text in the |
| 2272 | * temp file. */ |
| 2273 | unpartition_filestruct(&filepart); |
| 2274 | |
| 2275 | /* Renumber starting with the beginning line of the old |
David Lawrence Ramsey | 520a90c | 2005-07-25 21:23:11 +0000 | [diff] [blame] | 2276 | * partition. Also add the number of characters in the |
| 2277 | * spell-checked marked text to the saved value of totsize, and |
| 2278 | * then make that saved value the actual value. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2279 | renumber(top_save); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2280 | totsize_save += openfile->totsize; |
| 2281 | openfile->totsize = totsize_save; |
| 2282 | |
| 2283 | /* Assign mark_begin to the line where the mark began before. */ |
| 2284 | do_gotopos(mb_lineno_save, openfile->mark_begin_x, |
| 2285 | current_y_save, 0); |
| 2286 | openfile->mark_begin = openfile->current; |
| 2287 | |
| 2288 | /* Assign mark_begin_x to the location in mark_begin where the |
| 2289 | * mark began before, adjusted for any shortening of the |
| 2290 | * line. */ |
| 2291 | openfile->mark_begin_x = openfile->current_x; |
| 2292 | |
| 2293 | /* Turn the mark back on. */ |
| 2294 | openfile->mark_set = TRUE; |
| 2295 | } |
| 2296 | #endif |
| 2297 | |
| 2298 | /* Go back to the old position, and mark the file as modified. */ |
| 2299 | do_gotopos(lineno_save, current_x_save, current_y_save, pww_save); |
| 2300 | set_modified(); |
| 2301 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 2302 | #ifndef NANO_TINY |
David Lawrence Ramsey | 3fe08ac | 2005-07-26 01:17:16 +0000 | [diff] [blame] | 2303 | /* Handle a pending SIGWINCH again. */ |
| 2304 | allow_pending_sigwinch(TRUE); |
| 2305 | #endif |
| 2306 | |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2307 | return NULL; |
| 2308 | } |
| 2309 | |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 2310 | /* Spell check the current file. If an alternate spell checker is |
| 2311 | * specified, use it. Otherwise, use the internal spell checker. */ |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2312 | void do_spell(void) |
| 2313 | { |
| 2314 | int i; |
| 2315 | FILE *temp_file; |
| 2316 | char *temp = safe_tempfile(&temp_file); |
| 2317 | const char *spell_msg; |
| 2318 | |
| 2319 | if (temp == NULL) { |
David Lawrence Ramsey | f0e3ca6 | 2006-05-03 13:11:00 +0000 | [diff] [blame] | 2320 | statusbar(_("Error writing temp file: %s"), strerror(errno)); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2321 | return; |
| 2322 | } |
| 2323 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 2324 | #ifndef NANO_TINY |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2325 | if (openfile->mark_set) |
David Lawrence Ramsey | e014fbd | 2005-08-29 19:11:26 +0000 | [diff] [blame] | 2326 | i = write_marked_file(temp, temp_file, TRUE, OVERWRITE); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2327 | else |
| 2328 | #endif |
David Lawrence Ramsey | e014fbd | 2005-08-29 19:11:26 +0000 | [diff] [blame] | 2329 | i = write_file(temp, temp_file, TRUE, OVERWRITE, FALSE); |
David Lawrence Ramsey | cc8185f | 2005-07-25 02:33:45 +0000 | [diff] [blame] | 2330 | |
| 2331 | if (i == -1) { |
| 2332 | statusbar(_("Error writing temp file: %s"), strerror(errno)); |
| 2333 | free(temp); |
| 2334 | return; |
| 2335 | } |
| 2336 | |
| 2337 | spell_msg = (alt_speller != NULL) ? do_alt_speller(temp) : |
| 2338 | do_int_speller(temp); |
| 2339 | unlink(temp); |
| 2340 | free(temp); |
| 2341 | |
| 2342 | /* If the spell-checker printed any error messages onscreen, make |
| 2343 | * sure that they're cleared off. */ |
| 2344 | total_refresh(); |
| 2345 | |
| 2346 | if (spell_msg != NULL) { |
| 2347 | if (errno == 0) |
| 2348 | /* Don't display an error message of "Success". */ |
| 2349 | statusbar(_("Spell checking failed: %s"), spell_msg); |
| 2350 | else |
| 2351 | statusbar(_("Spell checking failed: %s: %s"), spell_msg, |
| 2352 | strerror(errno)); |
| 2353 | } else |
| 2354 | statusbar(_("Finished checking spelling")); |
| 2355 | } |
| 2356 | #endif /* !DISABLE_SPELLER */ |
| 2357 | |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 2358 | #ifndef NANO_TINY |
David Lawrence Ramsey | d7f0fe9 | 2005-08-10 22:51:49 +0000 | [diff] [blame] | 2359 | /* Our own version of "wc". Note that its character counts are in |
| 2360 | * multibyte characters instead of single-byte characters. */ |
David Lawrence Ramsey | 8e94234 | 2005-07-25 04:21:46 +0000 | [diff] [blame] | 2361 | void do_wordlinechar_count(void) |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2362 | { |
David Lawrence Ramsey | 520a90c | 2005-07-25 21:23:11 +0000 | [diff] [blame] | 2363 | size_t words = 0, chars = 0; |
| 2364 | ssize_t lines = 0; |
David Lawrence Ramsey | 7293685 | 2005-07-25 03:47:08 +0000 | [diff] [blame] | 2365 | size_t current_x_save = openfile->current_x; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2366 | size_t pww_save = openfile->placewewant; |
| 2367 | filestruct *current_save = openfile->current; |
| 2368 | bool old_mark_set = openfile->mark_set; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2369 | filestruct *top, *bot; |
| 2370 | size_t top_x, bot_x; |
| 2371 | |
| 2372 | if (old_mark_set) { |
| 2373 | /* If the mark is on, partition the filestruct so that it |
David Lawrence Ramsey | 2ffdea4 | 2005-11-03 21:08:39 +0000 | [diff] [blame] | 2374 | * contains only the marked text, and turn the mark off. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2375 | mark_order((const filestruct **)&top, &top_x, |
| 2376 | (const filestruct **)&bot, &bot_x, NULL); |
| 2377 | filepart = partition_filestruct(top, top_x, bot, bot_x); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2378 | openfile->mark_set = FALSE; |
| 2379 | } |
| 2380 | |
| 2381 | /* Start at the top of the file. */ |
| 2382 | openfile->current = openfile->fileage; |
| 2383 | openfile->current_x = 0; |
| 2384 | openfile->placewewant = 0; |
| 2385 | |
| 2386 | /* Keep moving to the next word (counting punctuation characters as |
David Lawrence Ramsey | 7293685 | 2005-07-25 03:47:08 +0000 | [diff] [blame] | 2387 | * part of a word, as "wc -w" does), without updating the screen, |
| 2388 | * until we reach the end of the file, incrementing the total word |
| 2389 | * count whenever we're on a word just before moving. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2390 | while (openfile->current != openfile->filebot || |
David Lawrence Ramsey | 2ffdea4 | 2005-11-03 21:08:39 +0000 | [diff] [blame] | 2391 | openfile->current->data[openfile->current_x] != '\0') { |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2392 | if (do_next_word(TRUE, FALSE)) |
| 2393 | words++; |
| 2394 | } |
| 2395 | |
David Lawrence Ramsey | 7293685 | 2005-07-25 03:47:08 +0000 | [diff] [blame] | 2396 | /* Get the total line and character counts, as "wc -l" and "wc -c" |
| 2397 | * do, but get the latter in multibyte characters. */ |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2398 | if (old_mark_set) { |
David Lawrence Ramsey | 78a81b2 | 2005-07-25 18:59:24 +0000 | [diff] [blame] | 2399 | lines = openfile->filebot->lineno - |
| 2400 | openfile->fileage->lineno + 1; |
David Lawrence Ramsey | 7293685 | 2005-07-25 03:47:08 +0000 | [diff] [blame] | 2401 | chars = get_totsize(openfile->fileage, openfile->filebot); |
| 2402 | |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2403 | /* Unpartition the filestruct so that it contains all the text |
| 2404 | * again, and turn the mark back on. */ |
| 2405 | unpartition_filestruct(&filepart); |
| 2406 | openfile->mark_set = TRUE; |
David Lawrence Ramsey | 7293685 | 2005-07-25 03:47:08 +0000 | [diff] [blame] | 2407 | } else { |
David Lawrence Ramsey | 520a90c | 2005-07-25 21:23:11 +0000 | [diff] [blame] | 2408 | lines = openfile->filebot->lineno; |
David Lawrence Ramsey | 7293685 | 2005-07-25 03:47:08 +0000 | [diff] [blame] | 2409 | chars = openfile->totsize; |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2410 | } |
| 2411 | |
| 2412 | /* Restore where we were. */ |
| 2413 | openfile->current = current_save; |
| 2414 | openfile->current_x = current_x_save; |
| 2415 | openfile->placewewant = pww_save; |
| 2416 | |
David Lawrence Ramsey | 7293685 | 2005-07-25 03:47:08 +0000 | [diff] [blame] | 2417 | /* Display the total word, line, and character counts on the |
| 2418 | * statusbar. */ |
David Lawrence Ramsey | 7b71f57 | 2005-10-06 20:46:11 +0000 | [diff] [blame] | 2419 | statusbar(_("%sWords: %lu Lines: %ld Chars: %lu"), old_mark_set ? |
David Lawrence Ramsey | 815fb0a | 2005-08-05 19:38:11 +0000 | [diff] [blame] | 2420 | _("In Selection: ") : "", (unsigned long)words, (long)lines, |
David Lawrence Ramsey | 520a90c | 2005-07-25 21:23:11 +0000 | [diff] [blame] | 2421 | (unsigned long)chars); |
David Lawrence Ramsey | 691698a | 2005-07-24 19:57:51 +0000 | [diff] [blame] | 2422 | } |
David Lawrence Ramsey | ebe3425 | 2005-11-15 03:17:35 +0000 | [diff] [blame] | 2423 | #endif /* !NANO_TINY */ |
David Lawrence Ramsey | 37ddfa9 | 2005-11-07 06:06:05 +0000 | [diff] [blame] | 2424 | |
David Lawrence Ramsey | 6d6a36c | 2005-12-08 07:09:08 +0000 | [diff] [blame] | 2425 | /* Get verbatim input. */ |
David Lawrence Ramsey | 37ddfa9 | 2005-11-07 06:06:05 +0000 | [diff] [blame] | 2426 | void do_verbatim_input(void) |
| 2427 | { |
| 2428 | int *kbinput; |
| 2429 | size_t kbinput_len, i; |
| 2430 | char *output; |
| 2431 | |
| 2432 | statusbar(_("Verbatim Input")); |
| 2433 | |
| 2434 | /* If constant cursor position display is on, make sure the current |
| 2435 | * cursor position will be properly displayed on the statusbar. */ |
| 2436 | if (ISSET(CONST_UPDATE)) |
| 2437 | do_cursorpos(TRUE); |
| 2438 | |
| 2439 | /* Read in all the verbatim characters. */ |
| 2440 | kbinput = get_verbatim_kbinput(edit, &kbinput_len); |
| 2441 | |
| 2442 | /* Display all the verbatim characters at once, not filtering out |
| 2443 | * control characters. */ |
| 2444 | output = charalloc(kbinput_len + 1); |
| 2445 | |
| 2446 | for (i = 0; i < kbinput_len; i++) |
| 2447 | output[i] = (char)kbinput[i]; |
| 2448 | output[i] = '\0'; |
| 2449 | |
| 2450 | do_output(output, kbinput_len, TRUE); |
| 2451 | |
| 2452 | free(output); |
| 2453 | } |