lsystem.c (6f26c71d76bb795b30684affb3b57870a7926b26) lsystem.c (2235c7feac959bcc9ddfd6a2bc6be32102b1f84c)
1/*
1/*
2 * Copyright (C) 1984-2020 Mark Nudelman
2 * Copyright (C) 1984-2021 Mark Nudelman
3 *
4 * You may distribute under the terms of either the GNU General Public
5 * License or the Less License, as specified in the README file.
6 *
7 * For more information, see the README file.
8 */
9
10

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92 */
93 save_ifile = save_curr_ifile();
94 (void) edit_ifile(NULL_IFILE);
95
96 /*
97 * De-initialize the terminal and take out of raw mode.
98 */
99 deinit();
3 *
4 * You may distribute under the terms of either the GNU General Public
5 * License or the Less License, as specified in the README file.
6 *
7 * For more information, see the README file.
8 */
9
10

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92 */
93 save_ifile = save_curr_ifile();
94 (void) edit_ifile(NULL_IFILE);
95
96 /*
97 * De-initialize the terminal and take out of raw mode.
98 */
99 deinit();
100 flush(); /* Make sure the deinit chars get out */
100 flush(); /* Make sure the deinit chars get out */
101 raw_mode(0);
102#if MSDOS_COMPILER==WIN32C
103 close_getchr();
104#endif
105
106 /*
107 * Restore signals to their defaults.
108 */
109 init_signals(0);
110
111#if HAVE_DUP
112 /*
113 * Force standard input to be the user's terminal
114 * (the normal standard input), even if less's standard input
115 * is coming from a pipe.
116 */
117 inp = dup(0);
118 close(0);
101 raw_mode(0);
102#if MSDOS_COMPILER==WIN32C
103 close_getchr();
104#endif
105
106 /*
107 * Restore signals to their defaults.
108 */
109 init_signals(0);
110
111#if HAVE_DUP
112 /*
113 * Force standard input to be the user's terminal
114 * (the normal standard input), even if less's standard input
115 * is coming from a pipe.
116 */
117 inp = dup(0);
118 close(0);
119#if !MSDOS_COMPILER
119#if OS2
120 /* The __open() system call translates "/dev/tty" to "con". */
120#if OS2
121 /* The __open() system call translates "/dev/tty" to "con". */
121 if (__open("/dev/tty", OPEN_READ) < 0)
122 if (__open(tty_device(), OPEN_READ) < 0)
122#else
123#else
123 if (open("/dev/tty", OPEN_READ) < 0)
124 if (open(tty_device(), OPEN_READ) < 0)
124#endif
125#endif
126#endif
125 dup(inp);
126#endif
127
128 /*
129 * Pass the command to the system to be executed.
130 * If we have a SHELL environment variable, use
131 * <$SHELL -c "command"> instead of just <command>.
132 * If the command is empty, just invoke a shell.

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164 * Make stdin of the child be in cooked mode.
165 */
166 setmode(0, O_TEXT);
167 /*
168 * We don't need to catch signals of the child (it
169 * also makes trouble with some DPMI servers).
170 */
171 __djgpp_exception_toggle();
127 dup(inp);
128#endif
129
130 /*
131 * Pass the command to the system to be executed.
132 * If we have a SHELL environment variable, use
133 * <$SHELL -c "command"> instead of just <command>.
134 * If the command is empty, just invoke a shell.

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166 * Make stdin of the child be in cooked mode.
167 */
168 setmode(0, O_TEXT);
169 /*
170 * We don't need to catch signals of the child (it
171 * also makes trouble with some DPMI servers).
172 */
173 __djgpp_exception_toggle();
172 system(cmd);
174 system(cmd);
173 __djgpp_exception_toggle();
174#else
175 system(cmd);
176#endif
177#endif
178
179#if HAVE_DUP
180 /*

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269 mpos = markpos(c);
270 if (mpos == NULL_POSITION)
271 return (-1);
272 tpos = position(TOP);
273 if (tpos == NULL_POSITION)
274 tpos = ch_zero();
275 bpos = position(BOTTOM);
276
175 __djgpp_exception_toggle();
176#else
177 system(cmd);
178#endif
179#endif
180
181#if HAVE_DUP
182 /*

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271 mpos = markpos(c);
272 if (mpos == NULL_POSITION)
273 return (-1);
274 tpos = position(TOP);
275 if (tpos == NULL_POSITION)
276 tpos = ch_zero();
277 bpos = position(BOTTOM);
278
277 if (c == '.')
278 return (pipe_data(cmd, tpos, bpos));
279 else if (mpos <= tpos)
280 return (pipe_data(cmd, mpos, bpos));
281 else if (bpos == NULL_POSITION)
282 return (pipe_data(cmd, tpos, bpos));
283 else
284 return (pipe_data(cmd, tpos, mpos));
279 if (c == '.')
280 return (pipe_data(cmd, tpos, bpos));
281 else if (mpos <= tpos)
282 return (pipe_data(cmd, mpos, bpos));
283 else if (bpos == NULL_POSITION)
284 return (pipe_data(cmd, tpos, bpos));
285 else
286 return (pipe_data(cmd, tpos, mpos));
285}
286
287/*
288 * Create a pipe to the given shell command.
289 * Feed it the file contents between the positions spos and epos.
290 */
291 public int
292pipe_data(cmd, spos, epos)

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341 break;
342 if (putc(c, f) == EOF)
343 break;
344 }
345
346 /*
347 * Finish up the last line.
348 */
287}
288
289/*
290 * Create a pipe to the given shell command.
291 * Feed it the file contents between the positions spos and epos.
292 */
293 public int
294pipe_data(cmd, spos, epos)

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343 break;
344 if (putc(c, f) == EOF)
345 break;
346 }
347
348 /*
349 * Finish up the last line.
350 */
349 while (c != '\n' && c != EOI )
350 {
351 c = ch_forw_get();
352 if (c == EOI)
353 break;
354 if (putc(c, f) == EOF)
355 break;
356 }
351 while (c != '\n' && c != EOI )
352 {
353 c = ch_forw_get();
354 if (c == EOI)
355 break;
356 if (putc(c, f) == EOF)
357 break;
358 }
357
358 pclose(f);
359
360#ifdef SIGPIPE
361 LSIGNAL(SIGPIPE, SIG_DFL);
362#endif
363#if MSDOS_COMPILER==WIN32C
364 open_getchr();

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360 pclose(f);
361
362#ifdef SIGPIPE
363 LSIGNAL(SIGPIPE, SIG_DFL);
364#endif
365#if MSDOS_COMPILER==WIN32C
366 open_getchr();

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