diff options
Diffstat (limited to 'lib/libcurses/tinfo/lib_tgoto.c')
| -rw-r--r-- | lib/libcurses/tinfo/lib_tgoto.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/lib/libcurses/tinfo/lib_tgoto.c b/lib/libcurses/tinfo/lib_tgoto.c new file mode 100644 index 00000000000..b305935cdee --- /dev/null +++ b/lib/libcurses/tinfo/lib_tgoto.c @@ -0,0 +1,199 @@ +/* $OpenBSD: lib_tgoto.c,v 1.1 2000/10/08 22:47:02 millert Exp $ */ + +/**************************************************************************** + * Copyright (c) 2000 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 * + ****************************************************************************/ + +#include <curses.priv.h> + +#include <ctype.h> +#include <termcap.h> + +MODULE_ID("$From: lib_tgoto.c,v 1.2 2000/09/24 00:19:14 tom Exp $") + +#if !PURE_TERMINFO +static bool +is_termcap(const char *string) +{ + bool result = TRUE; + + while ((*string != '\0') && result) { + if (*string == '%') { + switch (*++string) { + case 'p': + result = FALSE; + break; + case '\0': + string--; + break; + } + } else if (string[0] == '$' && string[1] == '<') { + result = FALSE; + } + string++; + } + return result; +} + +static char * +tgoto_internal(const char *string, int x, int y) +{ + static char *result; + static size_t length; + + int swap_arg; + int param[3]; + size_t used = 0; + size_t need = 10; + int *value = param; + bool need_BC = FALSE; + + if (BC) + need += strlen(BC); + + param[0] = y; + param[1] = x; + param[2] = 0; + + while (*string != 0) { + if ((used + need) > length) { + length += (used + need); + if ((result = _nc_doalloc(result, length)) == 0) { + length = 0; + break; + } + } + if (*string == '%') { + char *fmt = 0; + + switch (*++string) { + case '\0': + string--; + break; + case 'd': + fmt = "%d"; + break; + case '2': + fmt = "%02d"; + *value %= 100; + break; + case '3': + fmt = "%03d"; + *value %= 1000; + break; + case '+': + *value += (*++string & 0xff); + /* FALLTHRU */ + case '.': + /* + * Guard against tputs() seeing a truncated string. The + * termcap documentation refers to a similar fixup for \n + * and \r, but I don't see that it could work -TD + */ + if (*value == 0) { + if (BC != 0) { + *value += 1; + need_BC = TRUE; + } else { + *value = 0200; /* tputs will treat this as \0 */ + } + } + result[used++] = *value++; + break; + case '%': + result[used++] = *string; + break; + case 'r': + swap_arg = param[0]; + param[0] = param[1]; + param[1] = swap_arg; + break; + case 'i': + param[0] += 1; + param[1] += 1; + break; + case '>': + if (*value > string[1]) + *value += string[2]; + string += 2; + break; + case 'n': /* Datamedia 2500 */ + param[0] ^= 0140; + param[1] ^= 0140; + break; + case 'B': /* BCD */ + *value = 16 * (*value / 10) + (*value % 10); + break; + case 'D': /* Reverse coding (Delta Data) */ + *value -= 2 * (*value / 16); + break; + } + if (fmt != 0) { + sprintf(result + used, fmt, *value++); + used += strlen(result + used); + fmt = 0; + } + if (value - param > 2) { + value = param + 2; + *value = 0; + } + } else { + result[used++] = *string; + } + string++; + } + if (need_BC) { + strcpy(result + used, BC); + used += strlen(BC); + } + result[used] = '\0'; + return result; +} +#endif + +/* + * Retained solely for upward compatibility. Note the intentional reversing of + * the last two arguments when invoking tparm(). + */ +char * +tgoto(const char *string, int x, int y) +{ + char *result; + + T((T_CALLED("tgoto(%s, %d, %d)"), _nc_visbuf(string), x, y)); +#if !PURE_TERMINFO + if (is_termcap(string)) + result = tgoto_internal(string, x, y); + else +#endif + result = tparm((NCURSES_CONST char *) string, y, x); + returnPtr(result); +} |