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Diffstat (limited to 'ncurses-5.3/ncurses/trace/varargs.c')
| -rw-r--r-- | ncurses-5.3/ncurses/trace/varargs.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/ncurses-5.3/ncurses/trace/varargs.c b/ncurses-5.3/ncurses/trace/varargs.c new file mode 100644 index 0000000..88efc25 --- /dev/null +++ b/ncurses-5.3/ncurses/trace/varargs.c @@ -0,0 +1,182 @@ +/**************************************************************************** + * Copyright (c) 2001,2002 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 2001 * + ****************************************************************************/ + +#include <curses.priv.h> + +#include <ctype.h> + +MODULE_ID("$Id$") + +#ifdef TRACE + +#define MAX_PARMS 10 + +typedef enum { + atUnknown = 0, atInteger, atFloat, atPoint, atString +} ARGTYPE; + +#define VA_INT(type) ival = va_arg(ap, type) +#define VA_FLT(type) fval = va_arg(ap, type) +#define VA_PTR(type) pval = (void *)va_arg(ap, type) +#define VA_STR(type) sval = va_arg(ap, type) + +/* + * Returns a string that represents the parameter list of a printf-style call. + */ +NCURSES_EXPORT(char *) +_nc_varargs(const char *fmt, va_list ap) +{ + static char dummy[] = ""; + static char *result_buf; + static size_t result_len; + + char buffer[BUFSIZ]; + const char *param; + int n; + + if (fmt == 0 || *fmt == '\0') + return dummy; + if (result_len == 0) + result_buf = typeMalloc(char, result_len = BUFSIZ); + if (result_buf == 0) + return dummy; + *result_buf = '\0'; + + while (*fmt != '\0') { + if (*fmt == '%') { + char *pval = 0; /* avoid const-cast */ + const char *sval = ""; + double fval = 0.0; + int done = FALSE; + int ival = 0; + int type = 0; + ARGTYPE parm[MAX_PARMS]; + int parms = 0; + ARGTYPE used = atUnknown; + + while (*++fmt != '\0' && !done) { + + if (*fmt == '*') { + VA_INT(int); + if (parms < MAX_PARMS) + parm[parms++] = atInteger; + } else if (isalpha(UChar(*fmt))) { + done = TRUE; + switch (*fmt) { + case 'Z': /* FALLTHRU */ + case 'h': /* FALLTHRU */ + case 'l': /* FALLTHRU */ + done = FALSE; + type = *fmt; + break; + case 'i': /* FALLTHRU */ + case 'd': /* FALLTHRU */ + case 'u': /* FALLTHRU */ + case 'x': /* FALLTHRU */ + case 'X': /* FALLTHRU */ + if (type == 'l') + VA_INT(long); + else if (type == 'Z') + VA_INT(size_t); + else + VA_INT(int); + used = atInteger; + break; + case 'f': /* FALLTHRU */ + case 'e': /* FALLTHRU */ + case 'E': /* FALLTHRU */ + case 'g': /* FALLTHRU */ + case 'G': /* FALLTHRU */ + VA_FLT(double); + used = atFloat; + break; + case 'c': + VA_INT(int); + used = atInteger; + break; + case 's': + VA_STR(const char *); + used = atString; + break; + case 'p': + VA_PTR(void *); + used = atPoint; + break; + case 'n': + VA_PTR(int *); + used = atPoint; + break; + default: + break; + } + } else if (*fmt == '%') { + done = TRUE; + } + if (used != atUnknown && parms < MAX_PARMS) { + parm[parms++] = used; + for (n = 0; n < parms; ++n) { + used = parm[n]; + param = buffer; + switch (used) { + case atInteger: + sprintf(buffer, "%d", ival); + break; + case atFloat: + sprintf(buffer, "%f", fval); + break; + case atPoint: + sprintf(buffer, "%p", pval); + break; + case atString: + param = _nc_visbuf2(1, sval); + break; + default: + strcpy(buffer, "?"); + break; + } + result_len += strlen(param) + 2; + result_buf = typeRealloc(char, result_len, result_buf); + sprintf(result_buf + strlen(result_buf), ", %s", param); + } + } + used = atUnknown; + } + } else { + fmt++; + } + } + + return (result_buf); +} +#else +empty_module(_nc_varargs) +#endif |