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author | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2015-02-02 15:02:49 +0100 |
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committer | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2015-02-02 15:02:49 +0100 |
commit | b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 (patch) | |
tree | 4361edef0d42d5bf5ac984ef72b4fac35426eae7 /nx-X11/programs/xterm/ptydata.c | |
parent | 0d5a83e986f39982c0924652a3662e60b1f23162 (diff) | |
download | nx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.tar.gz nx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.tar.bz2 nx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.zip |
massive reduction of unneeded files
Diffstat (limited to 'nx-X11/programs/xterm/ptydata.c')
-rw-r--r-- | nx-X11/programs/xterm/ptydata.c | 420 |
1 files changed, 0 insertions, 420 deletions
diff --git a/nx-X11/programs/xterm/ptydata.c b/nx-X11/programs/xterm/ptydata.c deleted file mode 100644 index 7d3dae3e1..000000000 --- a/nx-X11/programs/xterm/ptydata.c +++ /dev/null @@ -1,420 +0,0 @@ -/* $XTermId: ptydata.c,v 1.65 2005/04/22 00:21:54 tom Exp $ */ - -/* - * $XFree86: xc/programs/xterm/ptydata.c,v 1.23 2005/04/22 00:21:54 dickey Exp $ - */ - -/************************************************************ - -Copyright 1999-2004,2005 by Thomas E. Dickey - - All Rights Reserved - -Permission is hereby granted, free of charge, to any person obtaining a -copy of this software and associated documentation files (the -"Software"), to deal in the Software without restriction, including -without limitation the rights to use, copy, modify, merge, publish, -distribute, sublicense, and/or sell copies of the Software, and to -permit persons to whom the Software is furnished to do so, subject to -the following conditions: - -The above copyright notice and this permission notice shall be included -in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY -CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, -TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE -SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name(s) of the above copyright -holders shall not be used in advertising or otherwise to promote the -sale, use or other dealings in this Software without prior written -authorization. - -********************************************************/ - -#include <data.h> - -#if OPT_WIDE_CHARS -#include <menu.h> -#endif - -/* - * Check for both EAGAIN and EWOULDBLOCK, because some supposedly POSIX - * systems are broken and return EWOULDBLOCK when they should return EAGAIN. - * Note that this macro may evaluate its argument more than once. - */ -#if defined(EAGAIN) && defined(EWOULDBLOCK) -#define E_TEST(err) ((err) == EAGAIN || (err) == EWOULDBLOCK) -#else -#ifdef EAGAIN -#define E_TEST(err) ((err) == EAGAIN) -#else -#define E_TEST(err) ((err) == EWOULDBLOCK) -#endif -#endif - -#if OPT_WIDE_CHARS -/* - * Convert the 8-bit codes in data->buffer[] into Unicode in data->utf_data. - * The number of bytes converted will be nonzero iff there is data. - */ -static Bool -decodeUtf8(PtyData * data) -{ - int i; - int length = data->last - data->next; - int utf_count = 0; - IChar utf_char = 0; - - data->utf_size = 0; - for (i = 0; i < length; i++) { - unsigned c = data->next[i]; - - /* Combine UTF-8 into Unicode */ - if (c < 0x80) { - /* We received an ASCII character */ - if (utf_count > 0) { - data->utf_data = UCS_REPL; /* prev. sequence incomplete */ - data->utf_size = (i + 1); - } else { - data->utf_data = c; - data->utf_size = 1; - } - break; - } else if (c < 0xc0) { - /* We received a continuation byte */ - if (utf_count < 1) { - /* - * We received a continuation byte before receiving a sequence - * state. Or an attempt to use a C1 control string. Either - * way, it is mapped to the replacement character. - */ - data->utf_data = UCS_REPL; /* ... unexpectedly */ - data->utf_size = (i + 1); - break; - } else { - /* Check for overlong UTF-8 sequences for which a shorter - * encoding would exist and replace them with UCS_REPL. - * An overlong UTF-8 sequence can have any of the following - * forms: - * 1100000x 10xxxxxx - * 11100000 100xxxxx 10xxxxxx - * 11110000 1000xxxx 10xxxxxx 10xxxxxx - * 11111000 10000xxx 10xxxxxx 10xxxxxx 10xxxxxx - * 11111100 100000xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx - */ - if (!utf_char && !((c & 0x7f) >> (7 - utf_count))) { - utf_char = UCS_REPL; - } - /* characters outside UCS-2 become UCS_REPL */ - if (utf_char > 0x03ff) { - /* value would be >0xffff */ - utf_char = UCS_REPL; - } else { - utf_char <<= 6; - utf_char |= (c & 0x3f); - } - if ((utf_char >= 0xd800 && - utf_char <= 0xdfff) || - (utf_char == 0xfffe) || - (utf_char == 0xffff)) { - utf_char = UCS_REPL; - } - utf_count--; - if (utf_count == 0) { - data->utf_data = utf_char; - data->utf_size = (i + 1); - break; - } - } - } else { - /* We received a sequence start byte */ - if (utf_count > 0) { - data->utf_data = UCS_REPL; /* prev. sequence incomplete */ - data->utf_size = (i + 1); - break; - } - if (c < 0xe0) { - utf_count = 1; - utf_char = (c & 0x1f); - if (!(c & 0x1e)) - utf_char = UCS_REPL; /* overlong sequence */ - } else if (c < 0xf0) { - utf_count = 2; - utf_char = (c & 0x0f); - } else if (c < 0xf8) { - utf_count = 3; - utf_char = (c & 0x07); - } else if (c < 0xfc) { - utf_count = 4; - utf_char = (c & 0x03); - } else if (c < 0xfe) { - utf_count = 5; - utf_char = (c & 0x01); - } else { - data->utf_data = UCS_REPL; - data->utf_size = (i + 1); - break; - } - } - } -#if OPT_TRACE > 1 - TRACE(("UTF-8 char %04X [%d..%d]\n", - data->utf_data, - data->next - data->buffer, - data->next - data->buffer + data->utf_size - 1)); -#endif - - return (data->utf_size != 0); -} -#endif - -int -readPtyData(TScreen * screen, PtySelect * select_mask, PtyData * data) -{ - int size = 0; - -#ifdef VMS - if (*select_mask & pty_mask) { - trimPtyData(screen, data); - if (read_queue.flink != 0) { - size = tt_read(data->next); - if (size == 0) { - Panic("input: read returned zero\n", 0); - } - } else { - sys$hiber(); - } - } -#else /* !VMS */ - if (FD_ISSET(screen->respond, select_mask)) { - trimPtyData(screen, data); - - size = read(screen->respond, (char *) data->last, FRG_SIZE); - if (size <= 0) { - /* - * Yes, I know this is a majorly f*ugly hack, however it seems to - * be necessary for Solaris x86. DWH 11/15/94 - * Dunno why though.. - * (and now CYGWIN, alanh@xfree86.org 08/15/01 - */ -#if (defined(i386) && defined(SVR4) && defined(sun)) || defined(__CYGWIN__) - if (errno == EIO || errno == 0) -#else - if (errno == EIO) -#endif - Cleanup(0); - else if (!E_TEST(errno)) - Panic("input: read returned unexpected error (%d)\n", errno); - size = 0; - } else if (size == 0) { -#if defined(__UNIXOS2__) - Cleanup(0); -#else - Panic("input: read returned zero\n", 0); -#endif - } - } -#endif /* VMS */ - - if (size) { -#if OPT_TRACE - int i; - - TRACE(("read %d bytes from pty\n", size)); - for (i = 0; i < size; i++) { - if (!(i % 16)) - TRACE(("%s", i ? "\n " : "READ")); - TRACE((" %02X", data->last[i])); - } - TRACE(("\n")); -#endif - data->last += size; -#ifdef ALLOWLOGGING - term->screen.logstart = VTbuffer->next; -#endif - } - - return (size); -} - -/* - * Check if there is more data in the input buffer which can be returned by - * nextPtyData(). If there is insufficient data to return a completed UTF-8 - * value, return false anyway. - */ -#if OPT_WIDE_CHARS -Bool -morePtyData(TScreen * screen GCC_UNUSED, PtyData * data) -{ - Bool result = (data->last > data->next); - if (result && screen->utf8_inparse) { - if (!data->utf_size) - result = decodeUtf8(data); - } - TRACE2(("morePtyData returns %d\n", result)); - return result; -} -#endif - -/* - * Return the next value from the input buffer. Note that morePtyData() is - * always called before this function, so we can do the UTF-8 input conversion - * in that function and simply return the result here. - */ -#if OPT_WIDE_CHARS -IChar -nextPtyData(TScreen * screen, PtyData * data) -{ - IChar result; - if (screen->utf8_inparse) { - result = data->utf_data; - data->next += data->utf_size; - data->utf_size = 0; - } else { - result = *((data)->next++); - if (!screen->output_eight_bits) - result &= 0x7f; - } - TRACE2(("nextPtyData returns %#x\n", result)); - return result; -} -#endif - -#if OPT_WIDE_CHARS -/* - * Called when UTF-8 mode has been turned on/off. - */ -void -switchPtyData(TScreen * screen, int flag) -{ - if (screen->utf8_mode != flag) { - screen->utf8_mode = flag; - screen->utf8_inparse = (flag != 0); - - TRACE(("turning UTF-8 mode %s\n", BtoS(flag))); - update_font_utf8_mode(); - } -} -#endif - -void -initPtyData(PtyData ** result) -{ - PtyData *data; - - TRACE(("initPtyData given minBufSize %d, maxBufSize %d\n", - FRG_SIZE, BUF_SIZE)); - - if (FRG_SIZE < 64) - FRG_SIZE = 64; - if (BUF_SIZE < FRG_SIZE) - BUF_SIZE = FRG_SIZE; - if (BUF_SIZE % FRG_SIZE) - BUF_SIZE = BUF_SIZE + FRG_SIZE - (BUF_SIZE % FRG_SIZE); - - TRACE(("initPtyData using minBufSize %d, maxBufSize %d\n", - FRG_SIZE, BUF_SIZE)); - - data = (PtyData *) XtMalloc(sizeof(*data) + BUF_SIZE + FRG_SIZE); - - memset(data, 0, sizeof(*data)); - data->next = data->buffer; - data->last = data->buffer; - *result = data; -} - -/* - * Remove used data by shifting the buffer down, to make room for more data, - * e.g., a continuation-read. - */ -void -trimPtyData(TScreen * screen GCC_UNUSED, PtyData * data) -{ - int i; - - FlushLog(screen); - - if (data->next != data->buffer) { - int n = (data->last - data->next); - - TRACE(("shifting buffer down by %d\n", n)); - for (i = 0; i < n; ++i) { - data->buffer[i] = data->next[i]; - } - data->next = data->buffer; - data->last = data->next + n; - } - -} - -/* - * Insert new data into the input buffer so the next calls to morePtyData() - * and nextPtyData() will return that. - */ -void -fillPtyData(TScreen * screen, PtyData * data, char *value, int length) -{ - int size; - int n; - - /* remove the used portion of the buffer */ - trimPtyData(screen, data); - - VTbuffer->last += length; - size = VTbuffer->last - VTbuffer->next; - - /* shift the unused portion up to make room */ - for (n = size; n >= length; --n) - VTbuffer->next[n] = VTbuffer->next[n - length]; - - /* insert the new bytes to interpret */ - for (n = 0; n < length; n++) - VTbuffer->next[n] = CharOf(value[n]); -} - -#if OPT_WIDE_CHARS -Char * -convertToUTF8(Char * lp, unsigned c) -{ - if (c < 0x80) { /* 0******* */ - *lp++ = (c); - } else if (c < 0x800) { /* 110***** 10****** */ - *lp++ = (0xc0 | (c >> 6)); - *lp++ = (0x80 | (c & 0x3f)); - } else { /* 1110**** 10****** 10****** */ - *lp++ = (0xe0 | (c >> 12)); - *lp++ = (0x80 | ((c >> 6) & 0x3f)); - *lp++ = (0x80 | (c & 0x3f)); - } - /* - * UTF-8 is defined for words of up to 31 bits, but we need only 16 - * bits here, since that's all that X11R6 supports. - */ - return lp; -} - -/* - * Write data back to the PTY - */ -void -writePtyData(int f, IChar * d, unsigned len) -{ - static Char *dbuf; - static unsigned dlen; - unsigned n = (len << 1); - - if (dlen <= len) { - dlen = n; - dbuf = (Char *) XtRealloc((char *) dbuf, dlen); - } - - for (n = 0; n < len; n++) - dbuf[n] = d[n]; - v_write(f, dbuf, n); -} -#endif |