diff options
Diffstat (limited to 'ncurses/tinfo/obsolete.c')
| -rw-r--r-- | ncurses/tinfo/obsolete.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/ncurses/tinfo/obsolete.c b/ncurses/tinfo/obsolete.c new file mode 100644 index 0000000..63476dc --- /dev/null +++ b/ncurses/tinfo/obsolete.c @@ -0,0 +1,239 @@ +/**************************************************************************** + * Copyright (c) 2013,2014 Free Software Foundation, Inc. * + * * + * 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, distribute with modifications, 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 COPYRIGHT HOLDERS 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. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Thomas E. Dickey 2013-on * + ****************************************************************************/ + +/* +** Support for obsolete/unusual features. +*/ + +#include <curses.priv.h> + +MODULE_ID("$Id: obsolete.c,v 1.3 2014/10/11 02:39:35 tom Exp $") + +/* + * Obsolete entrypoint retained for binary compatbility. + */ +NCURSES_EXPORT(void) +NCURSES_SP_NAME(_nc_set_buffer) (NCURSES_SP_DCLx FILE *ofp, int buffered) +{ +#if NCURSES_SP_FUNCS + (void) SP_PARM; +#endif + (void) ofp; + (void) buffered; +} + +#if NCURSES_SP_FUNCS +NCURSES_EXPORT(void) +_nc_set_buffer(FILE *ofp, int buffered) +{ + NCURSES_SP_NAME(_nc_set_buffer) (CURRENT_SCREEN, ofp, buffered); +} +#endif + +#if !HAVE_STRDUP +NCURSES_EXPORT(char *) +_nc_strdup(const char *s) +{ + char *result = 0; + if (s != 0) { + size_t need = strlen(s); + result = malloc(need + 1); + if (result != 0) { + strcpy(result, s); + } + } + return result; +} +#endif + +#if USE_MY_MEMMOVE +#define DST ((char *)s1) +#define SRC ((const char *)s2) +NCURSES_EXPORT(void *) +_nc_memmove(void *s1, const void *s2, size_t n) +{ + if (n != 0) { + if ((DST + n > SRC) && (SRC + n > DST)) { + static char *bfr; + static size_t length; + register size_t j; + if (length < n) { + length = (n * 3) / 2; + bfr = typeRealloc(char, length, bfr); + } + for (j = 0; j < n; j++) + bfr[j] = SRC[j]; + s2 = bfr; + } + while (n-- != 0) + DST[n] = SRC[n]; + } + return s1; +} +#endif /* USE_MY_MEMMOVE */ + +#ifdef EXP_XTERM_1005 +NCURSES_EXPORT(int) +_nc_conv_to_utf8(unsigned char *target, unsigned source, unsigned limit) +{ +#define CH(n) UChar((source) >> ((n) * 8)) + int rc = 0; + + if (source <= 0x0000007f) + rc = 1; + else if (source <= 0x000007ff) + rc = 2; + else if (source <= 0x0000ffff) + rc = 3; + else if (source <= 0x001fffff) + rc = 4; + else if (source <= 0x03ffffff) + rc = 5; + else /* (source <= 0x7fffffff) */ + rc = 6; + + if ((unsigned) rc > limit) { /* whatever it is, we cannot decode it */ + rc = 0; + } + + if (target != 0) { + switch (rc) { + case 1: + target[0] = CH(0); + break; + + case 2: + target[1] = UChar(0x80 | (CH(0) & 0x3f)); + target[0] = UChar(0xc0 | (CH(0) >> 6) | ((CH(1) & 0x07) << 2)); + break; + + case 3: + target[2] = UChar(0x80 | (CH(0) & 0x3f)); + target[1] = UChar(0x80 | (CH(0) >> 6) | ((CH(1) & 0x0f) << 2)); + target[0] = UChar(0xe0 | ((int) (CH(1) & 0xf0) >> 4)); + break; + + case 4: + target[3] = UChar(0x80 | (CH(0) & 0x3f)); + target[2] = UChar(0x80 | (CH(0) >> 6) | ((CH(1) & 0x0f) << 2)); + target[1] = UChar(0x80 | + ((int) (CH(1) & 0xf0) >> 4) | + ((int) (CH(2) & 0x03) << 4)); + target[0] = UChar(0xf0 | ((int) (CH(2) & 0x1f) >> 2)); + break; + + case 5: + target[4] = UChar(0x80 | (CH(0) & 0x3f)); + target[3] = UChar(0x80 | (CH(0) >> 6) | ((CH(1) & 0x0f) << 2)); + target[2] = UChar(0x80 | + ((int) (CH(1) & 0xf0) >> 4) | + ((int) (CH(2) & 0x03) << 4)); + target[1] = UChar(0x80 | (CH(2) >> 2)); + target[0] = UChar(0xf8 | (CH(3) & 0x03)); + break; + + case 6: + target[5] = UChar(0x80 | (CH(0) & 0x3f)); + target[4] = UChar(0x80 | (CH(0) >> 6) | ((CH(1) & 0x0f) << 2)); + target[3] = UChar(0x80 | (CH(1) >> 4) | ((CH(2) & 0x03) << 4)); + target[2] = UChar(0x80 | (CH(2) >> 2)); + target[1] = UChar(0x80 | (CH(3) & 0x3f)); + target[0] = UChar(0xfc | ((int) (CH(3) & 0x40) >> 6)); + break; + } + } + + return rc; /* number of bytes needed in target */ +#undef CH +} + +NCURSES_EXPORT(int) +_nc_conv_to_utf32(unsigned *target, const char *source, unsigned limit) +{ +#define CH(n) UChar((*target) >> ((n) * 8)) + int rc = 0; + int j; + unsigned mask = 0; + + /* + * Find the number of bytes we will need from the source. + */ + if ((*source & 0x80) == 0) { + rc = 1; + mask = (unsigned) *source; + } else if ((*source & 0xe0) == 0xc0) { + rc = 2; + mask = (unsigned) (*source & 0x1f); + } else if ((*source & 0xf0) == 0xe0) { + rc = 3; + mask = (unsigned) (*source & 0x0f); + } else if ((*source & 0xf8) == 0xf0) { + rc = 4; + mask = (unsigned) (*source & 0x07); + } else if ((*source & 0xfc) == 0xf8) { + rc = 5; + mask = (unsigned) (*source & 0x03); + } else if ((*source & 0xfe) == 0xfc) { + rc = 6; + mask = (unsigned) (*source & 0x01); + } + + if ((unsigned) rc > limit) { /* whatever it is, we cannot decode it */ + rc = 0; + } + + /* + * sanity-check. + */ + if (rc > 1) { + for (j = 1; j < rc; j++) { + if ((source[j] & 0xc0) != 0x80) + break; + } + if (j != rc) { + rc = 0; + } + } + + if (target != 0) { + int shift = 0; + *target = 0; + for (j = 1; j < rc; j++) { + *target |= (unsigned) (source[rc - j] & 0x3f) << shift; + shift += 6; + } + *target |= mask << shift; + } + return rc; +#undef CH +} +#endif /* EXP_XTERM_1005 */ |