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author Miodrag Milanovic <mmicko@gmail.com>2016-02-27 16:28:05 +0100
committer Miodrag Milanovic <mmicko@gmail.com>2016-02-27 16:53:49 +0100
commitcf6dc7d370407914020f3e623719f09c8668c692 (patch)
tree46b3416d091b4c09b50fba7ffcbd310aed032cc8 /3rdparty/SDL2/src/stdlib/SDL_string.c
parent64135e73f973d9b95beb0c60b65feb34fbfec64a (diff)
Placed SDL2 source since we need it on some platforms (nw)
Diffstat (limited to '3rdparty/SDL2/src/stdlib/SDL_string.c')
-rw-r--r--3rdparty/SDL2/src/stdlib/SDL_string.c1662
1 files changed, 1662 insertions, 0 deletions
diff --git a/3rdparty/SDL2/src/stdlib/SDL_string.c b/3rdparty/SDL2/src/stdlib/SDL_string.c
new file mode 100644
index 00000000000..5debb228507
--- /dev/null
+++ b/3rdparty/SDL2/src/stdlib/SDL_string.c
@@ -0,0 +1,1662 @@
+/*
+ Simple DirectMedia Layer
+ Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+*/
+
+#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
+#define SDL_DISABLE_ANALYZE_MACROS 1
+#endif
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#include "../SDL_internal.h"
+
+/* This file contains portable string manipulation functions for SDL */
+
+#include "SDL_stdinc.h"
+
+
+#define SDL_isupperhex(X) (((X) >= 'A') && ((X) <= 'F'))
+#define SDL_islowerhex(X) (((X) >= 'a') && ((X) <= 'f'))
+
+#define UTF8_IsLeadByte(c) ((c) >= 0xC0 && (c) <= 0xF4)
+#define UTF8_IsTrailingByte(c) ((c) >= 0x80 && (c) <= 0xBF)
+
+static int UTF8_TrailingBytes(unsigned char c)
+{
+ if (c >= 0xC0 && c <= 0xDF)
+ return 1;
+ else if (c >= 0xE0 && c <= 0xEF)
+ return 2;
+ else if (c >= 0xF0 && c <= 0xF4)
+ return 3;
+ else
+ return 0;
+}
+
+#if !defined(HAVE_VSSCANF) || !defined(HAVE_STRTOL)
+static size_t
+SDL_ScanLong(const char *text, int radix, long *valuep)
+{
+ const char *textstart = text;
+ long value = 0;
+ SDL_bool negative = SDL_FALSE;
+
+ if (*text == '-') {
+ negative = SDL_TRUE;
+ ++text;
+ }
+ if (radix == 16 && SDL_strncmp(text, "0x", 2) == 0) {
+ text += 2;
+ }
+ for (;;) {
+ int v;
+ if (SDL_isdigit((unsigned char) *text)) {
+ v = *text - '0';
+ } else if (radix == 16 && SDL_isupperhex(*text)) {
+ v = 10 + (*text - 'A');
+ } else if (radix == 16 && SDL_islowerhex(*text)) {
+ v = 10 + (*text - 'a');
+ } else {
+ break;
+ }
+ value *= radix;
+ value += v;
+ ++text;
+ }
+ if (valuep) {
+ if (negative && value) {
+ *valuep = -value;
+ } else {
+ *valuep = value;
+ }
+ }
+ return (text - textstart);
+}
+#endif
+
+#if !defined(HAVE_VSSCANF) || !defined(HAVE_STRTOUL) || !defined(HAVE_STRTOD)
+static size_t
+SDL_ScanUnsignedLong(const char *text, int radix, unsigned long *valuep)
+{
+ const char *textstart = text;
+ unsigned long value = 0;
+
+ if (radix == 16 && SDL_strncmp(text, "0x", 2) == 0) {
+ text += 2;
+ }
+ for (;;) {
+ int v;
+ if (SDL_isdigit((unsigned char) *text)) {
+ v = *text - '0';
+ } else if (radix == 16 && SDL_isupperhex(*text)) {
+ v = 10 + (*text - 'A');
+ } else if (radix == 16 && SDL_islowerhex(*text)) {
+ v = 10 + (*text - 'a');
+ } else {
+ break;
+ }
+ value *= radix;
+ value += v;
+ ++text;
+ }
+ if (valuep) {
+ *valuep = value;
+ }
+ return (text - textstart);
+}
+#endif
+
+#ifndef HAVE_VSSCANF
+static size_t
+SDL_ScanUintPtrT(const char *text, int radix, uintptr_t * valuep)
+{
+ const char *textstart = text;
+ uintptr_t value = 0;
+
+ if (radix == 16 && SDL_strncmp(text, "0x", 2) == 0) {
+ text += 2;
+ }
+ for (;;) {
+ int v;
+ if (SDL_isdigit((unsigned char) *text)) {
+ v = *text - '0';
+ } else if (radix == 16 && SDL_isupperhex(*text)) {
+ v = 10 + (*text - 'A');
+ } else if (radix == 16 && SDL_islowerhex(*text)) {
+ v = 10 + (*text - 'a');
+ } else {
+ break;
+ }
+ value *= radix;
+ value += v;
+ ++text;
+ }
+ if (valuep) {
+ *valuep = value;
+ }
+ return (text - textstart);
+}
+#endif
+
+#if !defined(HAVE_VSSCANF) || !defined(HAVE_STRTOLL)
+static size_t
+SDL_ScanLongLong(const char *text, int radix, Sint64 * valuep)
+{
+ const char *textstart = text;
+ Sint64 value = 0;
+ SDL_bool negative = SDL_FALSE;
+
+ if (*text == '-') {
+ negative = SDL_TRUE;
+ ++text;
+ }
+ if (radix == 16 && SDL_strncmp(text, "0x", 2) == 0) {
+ text += 2;
+ }
+ for (;;) {
+ int v;
+ if (SDL_isdigit((unsigned char) *text)) {
+ v = *text - '0';
+ } else if (radix == 16 && SDL_isupperhex(*text)) {
+ v = 10 + (*text - 'A');
+ } else if (radix == 16 && SDL_islowerhex(*text)) {
+ v = 10 + (*text - 'a');
+ } else {
+ break;
+ }
+ value *= radix;
+ value += v;
+ ++text;
+ }
+ if (valuep) {
+ if (negative && value) {
+ *valuep = -value;
+ } else {
+ *valuep = value;
+ }
+ }
+ return (text - textstart);
+}
+#endif
+
+#if !defined(HAVE_VSSCANF) || !defined(HAVE_STRTOULL)
+static size_t
+SDL_ScanUnsignedLongLong(const char *text, int radix, Uint64 * valuep)
+{
+ const char *textstart = text;
+ Uint64 value = 0;
+
+ if (radix == 16 && SDL_strncmp(text, "0x", 2) == 0) {
+ text += 2;
+ }
+ for (;;) {
+ int v;
+ if (SDL_isdigit((unsigned char) *text)) {
+ v = *text - '0';
+ } else if (radix == 16 && SDL_isupperhex(*text)) {
+ v = 10 + (*text - 'A');
+ } else if (radix == 16 && SDL_islowerhex(*text)) {
+ v = 10 + (*text - 'a');
+ } else {
+ break;
+ }
+ value *= radix;
+ value += v;
+ ++text;
+ }
+ if (valuep) {
+ *valuep = value;
+ }
+ return (text - textstart);
+}
+#endif
+
+#if !defined(HAVE_VSSCANF) || !defined(HAVE_STRTOD)
+static size_t
+SDL_ScanFloat(const char *text, double *valuep)
+{
+ const char *textstart = text;
+ unsigned long lvalue = 0;
+ double value = 0.0;
+ SDL_bool negative = SDL_FALSE;
+
+ if (*text == '-') {
+ negative = SDL_TRUE;
+ ++text;
+ }
+ text += SDL_ScanUnsignedLong(text, 10, &lvalue);
+ value += lvalue;
+ if (*text == '.') {
+ int mult = 10;
+ ++text;
+ while (SDL_isdigit((unsigned char) *text)) {
+ lvalue = *text - '0';
+ value += (double) lvalue / mult;
+ mult *= 10;
+ ++text;
+ }
+ }
+ if (valuep) {
+ if (negative && value) {
+ *valuep = -value;
+ } else {
+ *valuep = value;
+ }
+ }
+ return (text - textstart);
+}
+#endif
+
+void *
+SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len)
+{
+#if defined(HAVE_MEMSET)
+ return memset(dst, c, len);
+#else
+ size_t left;
+ Uint32 *dstp4;
+ Uint8 *dstp1 = (Uint8 *) dst;
+ Uint32 value4 = (c | (c << 8) | (c << 16) | (c << 24));
+ Uint8 value1 = (Uint8) c;
+
+ /* The destination pointer needs to be aligned on a 4-byte boundary to
+ * execute a 32-bit set. Set first bytes manually if needed until it is
+ * aligned. */
+ while ((intptr_t)dstp1 & 0x3) {
+ if (len--) {
+ *dstp1++ = value1;
+ } else {
+ return dst;
+ }
+ }
+
+ dstp4 = (Uint32 *) dstp1;
+ left = (len % 4);
+ len /= 4;
+ while (len--) {
+ *dstp4++ = value4;
+ }
+
+ dstp1 = (Uint8 *) dstp4;
+ switch (left) {
+ case 3:
+ *dstp1++ = value1;
+ case 2:
+ *dstp1++ = value1;
+ case 1:
+ *dstp1++ = value1;
+ }
+
+ return dst;
+#endif /* HAVE_MEMSET */
+}
+
+void *
+SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len)
+{
+#ifdef __GNUC__
+ /* Presumably this is well tuned for speed.
+ On my machine this is twice as fast as the C code below.
+ */
+ return __builtin_memcpy(dst, src, len);
+#elif defined(HAVE_MEMCPY)
+ return memcpy(dst, src, len);
+#elif defined(HAVE_BCOPY)
+ bcopy(src, dst, len);
+ return dst;
+#else
+ /* GCC 4.9.0 with -O3 will generate movaps instructions with the loop
+ using Uint32* pointers, so we need to make sure the pointers are
+ aligned before we loop using them.
+ */
+ if (((intptr_t)src & 0x3) || ((intptr_t)dst & 0x3)) {
+ /* Do an unaligned byte copy */
+ Uint8 *srcp1 = (Uint8 *)src;
+ Uint8 *dstp1 = (Uint8 *)dst;
+
+ while (len--) {
+ *dstp1++ = *srcp1++;
+ }
+ } else {
+ size_t left = (len % 4);
+ Uint32 *srcp4, *dstp4;
+ Uint8 *srcp1, *dstp1;
+
+ srcp4 = (Uint32 *) src;
+ dstp4 = (Uint32 *) dst;
+ len /= 4;
+ while (len--) {
+ *dstp4++ = *srcp4++;
+ }
+
+ srcp1 = (Uint8 *) srcp4;
+ dstp1 = (Uint8 *) dstp4;
+ switch (left) {
+ case 3:
+ *dstp1++ = *srcp1++;
+ case 2:
+ *dstp1++ = *srcp1++;
+ case 1:
+ *dstp1++ = *srcp1++;
+ }
+ }
+ return dst;
+#endif /* __GNUC__ */
+}
+
+void *
+SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len)
+{
+#if defined(HAVE_MEMMOVE)
+ return memmove(dst, src, len);
+#else
+ char *srcp = (char *) src;
+ char *dstp = (char *) dst;
+
+ if (src < dst) {
+ srcp += len - 1;
+ dstp += len - 1;
+ while (len--) {
+ *dstp-- = *srcp--;
+ }
+ } else {
+ while (len--) {
+ *dstp++ = *srcp++;
+ }
+ }
+ return dst;
+#endif /* HAVE_MEMMOVE */
+}
+
+int
+SDL_memcmp(const void *s1, const void *s2, size_t len)
+{
+#if defined(HAVE_MEMCMP)
+ return memcmp(s1, s2, len);
+#else
+ char *s1p = (char *) s1;
+ char *s2p = (char *) s2;
+ while (len--) {
+ if (*s1p != *s2p) {
+ return (*s1p - *s2p);
+ }
+ ++s1p;
+ ++s2p;
+ }
+ return 0;
+#endif /* HAVE_MEMCMP */
+}
+
+size_t
+SDL_strlen(const char *string)
+{
+#if defined(HAVE_STRLEN)
+ return strlen(string);
+#else
+ size_t len = 0;
+ while (*string++) {
+ ++len;
+ }
+ return len;
+#endif /* HAVE_STRLEN */
+}
+
+size_t
+SDL_wcslen(const wchar_t * string)
+{
+#if defined(HAVE_WCSLEN)
+ return wcslen(string);
+#else
+ size_t len = 0;
+ while (*string++) {
+ ++len;
+ }
+ return len;
+#endif /* HAVE_WCSLEN */
+}
+
+size_t
+SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
+{
+#if defined(HAVE_WCSLCPY)
+ return wcslcpy(dst, src, maxlen);
+#else
+ size_t srclen = SDL_wcslen(src);
+ if (maxlen > 0) {
+ size_t len = SDL_min(srclen, maxlen - 1);
+ SDL_memcpy(dst, src, len * sizeof(wchar_t));
+ dst[len] = '\0';
+ }
+ return srclen;
+#endif /* HAVE_WCSLCPY */
+}
+
+size_t
+SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
+{
+#if defined(HAVE_WCSLCAT)
+ return wcslcat(dst, src, maxlen);
+#else
+ size_t dstlen = SDL_wcslen(dst);
+ size_t srclen = SDL_wcslen(src);
+ if (dstlen < maxlen) {
+ SDL_wcslcpy(dst + dstlen, src, maxlen - dstlen);
+ }
+ return dstlen + srclen;
+#endif /* HAVE_WCSLCAT */
+}
+
+size_t
+SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
+{
+#if defined(HAVE_STRLCPY)
+ return strlcpy(dst, src, maxlen);
+#else
+ size_t srclen = SDL_strlen(src);
+ if (maxlen > 0) {
+ size_t len = SDL_min(srclen, maxlen - 1);
+ SDL_memcpy(dst, src, len);
+ dst[len] = '\0';
+ }
+ return srclen;
+#endif /* HAVE_STRLCPY */
+}
+
+size_t SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes)
+{
+ size_t src_bytes = SDL_strlen(src);
+ size_t bytes = SDL_min(src_bytes, dst_bytes - 1);
+ size_t i = 0;
+ char trailing_bytes = 0;
+ if (bytes)
+ {
+ unsigned char c = (unsigned char)src[bytes - 1];
+ if (UTF8_IsLeadByte(c))
+ --bytes;
+ else if (UTF8_IsTrailingByte(c))
+ {
+ for (i = bytes - 1; i != 0; --i)
+ {
+ c = (unsigned char)src[i];
+ trailing_bytes = UTF8_TrailingBytes(c);
+ if (trailing_bytes)
+ {
+ if (bytes - i != trailing_bytes + 1)
+ bytes = i;
+
+ break;
+ }
+ }
+ }
+ SDL_memcpy(dst, src, bytes);
+ }
+ dst[bytes] = '\0';
+ return bytes;
+}
+
+size_t
+SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
+{
+#if defined(HAVE_STRLCAT)
+ return strlcat(dst, src, maxlen);
+#else
+ size_t dstlen = SDL_strlen(dst);
+ size_t srclen = SDL_strlen(src);
+ if (dstlen < maxlen) {
+ SDL_strlcpy(dst + dstlen, src, maxlen - dstlen);
+ }
+ return dstlen + srclen;
+#endif /* HAVE_STRLCAT */
+}
+
+char *
+SDL_strdup(const char *string)
+{
+#if defined(HAVE_STRDUP)
+ return strdup(string);
+#else
+ size_t len = SDL_strlen(string) + 1;
+ char *newstr = SDL_malloc(len);
+ if (newstr) {
+ SDL_strlcpy(newstr, string, len);
+ }
+ return newstr;
+#endif /* HAVE_STRDUP */
+}
+
+char *
+SDL_strrev(char *string)
+{
+#if defined(HAVE__STRREV)
+ return _strrev(string);
+#else
+ size_t len = SDL_strlen(string);
+ char *a = &string[0];
+ char *b = &string[len - 1];
+ len /= 2;
+ while (len--) {
+ char c = *a;
+ *a++ = *b;
+ *b-- = c;
+ }
+ return string;
+#endif /* HAVE__STRREV */
+}
+
+char *
+SDL_strupr(char *string)
+{
+#if defined(HAVE__STRUPR)
+ return _strupr(string);
+#else
+ char *bufp = string;
+ while (*bufp) {
+ *bufp = SDL_toupper((unsigned char) *bufp);
+ ++bufp;
+ }
+ return string;
+#endif /* HAVE__STRUPR */
+}
+
+char *
+SDL_strlwr(char *string)
+{
+#if defined(HAVE__STRLWR)
+ return _strlwr(string);
+#else
+ char *bufp = string;
+ while (*bufp) {
+ *bufp = SDL_tolower((unsigned char) *bufp);
+ ++bufp;
+ }
+ return string;
+#endif /* HAVE__STRLWR */
+}
+
+char *
+SDL_strchr(const char *string, int c)
+{
+#ifdef HAVE_STRCHR
+ return SDL_const_cast(char*,strchr(string, c));
+#elif defined(HAVE_INDEX)
+ return SDL_const_cast(char*,index(string, c));
+#else
+ while (*string) {
+ if (*string == c) {
+ return (char *) string;
+ }
+ ++string;
+ }
+ return NULL;
+#endif /* HAVE_STRCHR */
+}
+
+char *
+SDL_strrchr(const char *string, int c)
+{
+#ifdef HAVE_STRRCHR
+ return SDL_const_cast(char*,strrchr(string, c));
+#elif defined(HAVE_RINDEX)
+ return SDL_const_cast(char*,rindex(string, c));
+#else
+ const char *bufp = string + SDL_strlen(string) - 1;
+ while (bufp >= string) {
+ if (*bufp == c) {
+ return (char *) bufp;
+ }
+ --bufp;
+ }
+ return NULL;
+#endif /* HAVE_STRRCHR */
+}
+
+char *
+SDL_strstr(const char *haystack, const char *needle)
+{
+#if defined(HAVE_STRSTR)
+ return SDL_const_cast(char*,strstr(haystack, needle));
+#else
+ size_t length = SDL_strlen(needle);
+ while (*haystack) {
+ if (SDL_strncmp(haystack, needle, length) == 0) {
+ return (char *) haystack;
+ }
+ ++haystack;
+ }
+ return NULL;
+#endif /* HAVE_STRSTR */
+}
+
+#if !defined(HAVE__LTOA) || !defined(HAVE__I64TOA) || \
+ !defined(HAVE__ULTOA) || !defined(HAVE__UI64TOA)
+static const char ntoa_table[] = {
+ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
+ 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
+ 'U', 'V', 'W', 'X', 'Y', 'Z'
+};
+#endif /* ntoa() conversion table */
+
+char *
+SDL_itoa(int value, char *string, int radix)
+{
+#ifdef HAVE_ITOA
+ return itoa(value, string, radix);
+#else
+ return SDL_ltoa((long)value, string, radix);
+#endif /* HAVE_ITOA */
+}
+
+char *
+SDL_uitoa(unsigned int value, char *string, int radix)
+{
+#ifdef HAVE__UITOA
+ return _uitoa(value, string, radix);
+#else
+ return SDL_ultoa((unsigned long)value, string, radix);
+#endif /* HAVE__UITOA */
+}
+
+char *
+SDL_ltoa(long value, char *string, int radix)
+{
+#if defined(HAVE__LTOA)
+ return _ltoa(value, string, radix);
+#else
+ char *bufp = string;
+
+ if (value < 0) {
+ *bufp++ = '-';
+ SDL_ultoa(-value, bufp, radix);
+ } else {
+ SDL_ultoa(value, bufp, radix);
+ }
+
+ return string;
+#endif /* HAVE__LTOA */
+}
+
+char *
+SDL_ultoa(unsigned long value, char *string, int radix)
+{
+#if defined(HAVE__ULTOA)
+ return _ultoa(value, string, radix);
+#else
+ char *bufp = string;
+
+ if (value) {
+ while (value > 0) {
+ *bufp++ = ntoa_table[value % radix];
+ value /= radix;
+ }
+ } else {
+ *bufp++ = '0';
+ }
+ *bufp = '\0';
+
+ /* The numbers went into the string backwards. :) */
+ SDL_strrev(string);
+
+ return string;
+#endif /* HAVE__ULTOA */
+}
+
+char *
+SDL_lltoa(Sint64 value, char *string, int radix)
+{
+#if defined(HAVE__I64TOA)
+ return _i64toa(value, string, radix);
+#else
+ char *bufp = string;
+
+ if (value < 0) {
+ *bufp++ = '-';
+ SDL_ulltoa(-value, bufp, radix);
+ } else {
+ SDL_ulltoa(value, bufp, radix);
+ }
+
+ return string;
+#endif /* HAVE__I64TOA */
+}
+
+char *
+SDL_ulltoa(Uint64 value, char *string, int radix)
+{
+#if defined(HAVE__UI64TOA)
+ return _ui64toa(value, string, radix);
+#else
+ char *bufp = string;
+
+ if (value) {
+ while (value > 0) {
+ *bufp++ = ntoa_table[value % radix];
+ value /= radix;
+ }
+ } else {
+ *bufp++ = '0';
+ }
+ *bufp = '\0';
+
+ /* The numbers went into the string backwards. :) */
+ SDL_strrev(string);
+
+ return string;
+#endif /* HAVE__UI64TOA */
+}
+
+int SDL_atoi(const char *string)
+{
+#ifdef HAVE_ATOI
+ return atoi(string);
+#else
+ return SDL_strtol(string, NULL, 0);
+#endif /* HAVE_ATOI */
+}
+
+double SDL_atof(const char *string)
+{
+#ifdef HAVE_ATOF
+ return (double) atof(string);
+#else
+ return SDL_strtod(string, NULL);
+#endif /* HAVE_ATOF */
+}
+
+long
+SDL_strtol(const char *string, char **endp, int base)
+{
+#if defined(HAVE_STRTOL)
+ return strtol(string, endp, base);
+#else
+ size_t len;
+ long value;
+
+ if (!base) {
+ if ((SDL_strlen(string) > 2) && (SDL_strncmp(string, "0x", 2) == 0)) {
+ base = 16;
+ } else {
+ base = 10;
+ }
+ }
+
+ len = SDL_ScanLong(string, base, &value);
+ if (endp) {
+ *endp = (char *) string + len;
+ }
+ return value;
+#endif /* HAVE_STRTOL */
+}
+
+unsigned long
+SDL_strtoul(const char *string, char **endp, int base)
+{
+#if defined(HAVE_STRTOUL)
+ return strtoul(string, endp, base);
+#else
+ size_t len;
+ unsigned long value;
+
+ if (!base) {
+ if ((SDL_strlen(string) > 2) && (SDL_strncmp(string, "0x", 2) == 0)) {
+ base = 16;
+ } else {
+ base = 10;
+ }
+ }
+
+ len = SDL_ScanUnsignedLong(string, base, &value);
+ if (endp) {
+ *endp = (char *) string + len;
+ }
+ return value;
+#endif /* HAVE_STRTOUL */
+}
+
+Sint64
+SDL_strtoll(const char *string, char **endp, int base)
+{
+#if defined(HAVE_STRTOLL)
+ return strtoll(string, endp, base);
+#else
+ size_t len;
+ Sint64 value;
+
+ if (!base) {
+ if ((SDL_strlen(string) > 2) && (SDL_strncmp(string, "0x", 2) == 0)) {
+ base = 16;
+ } else {
+ base = 10;
+ }
+ }
+
+ len = SDL_ScanLongLong(string, base, &value);
+ if (endp) {
+ *endp = (char *) string + len;
+ }
+ return value;
+#endif /* HAVE_STRTOLL */
+}
+
+Uint64
+SDL_strtoull(const char *string, char **endp, int base)
+{
+#if defined(HAVE_STRTOULL)
+ return strtoull(string, endp, base);
+#else
+ size_t len;
+ Uint64 value;
+
+ if (!base) {
+ if ((SDL_strlen(string) > 2) && (SDL_strncmp(string, "0x", 2) == 0)) {
+ base = 16;
+ } else {
+ base = 10;
+ }
+ }
+
+ len = SDL_ScanUnsignedLongLong(string, base, &value);
+ if (endp) {
+ *endp = (char *) string + len;
+ }
+ return value;
+#endif /* HAVE_STRTOULL */
+}
+
+double
+SDL_strtod(const char *string, char **endp)
+{
+#if defined(HAVE_STRTOD)
+ return strtod(string, endp);
+#else
+ size_t len;
+ double value;
+
+ len = SDL_ScanFloat(string, &value);
+ if (endp) {
+ *endp = (char *) string + len;
+ }
+ return value;
+#endif /* HAVE_STRTOD */
+}
+
+int
+SDL_strcmp(const char *str1, const char *str2)
+{
+#if defined(HAVE_STRCMP)
+ return strcmp(str1, str2);
+#else
+ while (*str1 && *str2) {
+ if (*str1 != *str2)
+ break;
+ ++str1;
+ ++str2;
+ }
+ return (int) ((unsigned char) *str1 - (unsigned char) *str2);
+#endif /* HAVE_STRCMP */
+}
+
+int
+SDL_strncmp(const char *str1, const char *str2, size_t maxlen)
+{
+#if defined(HAVE_STRNCMP)
+ return strncmp(str1, str2, maxlen);
+#else
+ while (*str1 && *str2 && maxlen) {
+ if (*str1 != *str2)
+ break;
+ ++str1;
+ ++str2;
+ --maxlen;
+ }
+ if (!maxlen) {
+ return 0;
+ }
+ return (int) ((unsigned char) *str1 - (unsigned char) *str2);
+#endif /* HAVE_STRNCMP */
+}
+
+int
+SDL_strcasecmp(const char *str1, const char *str2)
+{
+#ifdef HAVE_STRCASECMP
+ return strcasecmp(str1, str2);
+#elif defined(HAVE__STRICMP)
+ return _stricmp(str1, str2);
+#else
+ char a = 0;
+ char b = 0;
+ while (*str1 && *str2) {
+ a = SDL_toupper((unsigned char) *str1);
+ b = SDL_toupper((unsigned char) *str2);
+ if (a != b)
+ break;
+ ++str1;
+ ++str2;
+ }
+ a = SDL_toupper(*str1);
+ b = SDL_toupper(*str2);
+ return (int) ((unsigned char) a - (unsigned char) b);
+#endif /* HAVE_STRCASECMP */
+}
+
+int
+SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen)
+{
+#ifdef HAVE_STRNCASECMP
+ return strncasecmp(str1, str2, maxlen);
+#elif defined(HAVE__STRNICMP)
+ return _strnicmp(str1, str2, maxlen);
+#else
+ char a = 0;
+ char b = 0;
+ while (*str1 && *str2 && maxlen) {
+ a = SDL_tolower((unsigned char) *str1);
+ b = SDL_tolower((unsigned char) *str2);
+ if (a != b)
+ break;
+ ++str1;
+ ++str2;
+ --maxlen;
+ }
+ if (maxlen == 0) {
+ return 0;
+ } else {
+ a = SDL_tolower((unsigned char) *str1);
+ b = SDL_tolower((unsigned char) *str2);
+ return (int) ((unsigned char) a - (unsigned char) b);
+ }
+#endif /* HAVE_STRNCASECMP */
+}
+
+int
+SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...)
+{
+ int rc;
+ va_list ap;
+ va_start(ap, fmt);
+ rc = SDL_vsscanf(text, fmt, ap);
+ va_end(ap);
+ return rc;
+}
+
+#ifdef HAVE_VSSCANF
+int
+SDL_vsscanf(const char *text, const char *fmt, va_list ap)
+{
+ return vsscanf(text, fmt, ap);
+}
+#else
+int
+SDL_vsscanf(const char *text, const char *fmt, va_list ap)
+{
+ int retval = 0;
+
+ while (*fmt) {
+ if (*fmt == ' ') {
+ while (SDL_isspace((unsigned char) *text)) {
+ ++text;
+ }
+ ++fmt;
+ continue;
+ }
+ if (*fmt == '%') {
+ SDL_bool done = SDL_FALSE;
+ long count = 0;
+ int radix = 10;
+ enum
+ {
+ DO_SHORT,
+ DO_INT,
+ DO_LONG,
+ DO_LONGLONG
+ } inttype = DO_INT;
+ SDL_bool suppress = SDL_FALSE;
+
+ ++fmt;
+ if (*fmt == '%') {
+ if (*text == '%') {
+ ++text;
+ ++fmt;
+ continue;
+ }
+ break;
+ }
+ if (*fmt == '*') {
+ suppress = SDL_TRUE;
+ ++fmt;
+ }
+ fmt += SDL_ScanLong(fmt, 10, &count);
+
+ if (*fmt == 'c') {
+ if (!count) {
+ count = 1;
+ }
+ if (suppress) {
+ while (count--) {
+ ++text;
+ }
+ } else {
+ char *valuep = va_arg(ap, char *);
+ while (count--) {
+ *valuep++ = *text++;
+ }
+ ++retval;
+ }
+ continue;
+ }
+
+ while (SDL_isspace((unsigned char) *text)) {
+ ++text;
+ }
+
+ /* FIXME: implement more of the format specifiers */
+ while (!done) {
+ switch (*fmt) {
+ case '*':
+ suppress = SDL_TRUE;
+ break;
+ case 'h':
+ if (inttype > DO_SHORT) {
+ ++inttype;
+ }
+ break;
+ case 'l':
+ if (inttype < DO_LONGLONG) {
+ ++inttype;
+ }
+ break;
+ case 'I':
+ if (SDL_strncmp(fmt, "I64", 3) == 0) {
+ fmt += 2;
+ inttype = DO_LONGLONG;
+ }
+ break;
+ case 'i':
+ {
+ int index = 0;
+ if (text[index] == '-') {
+ ++index;
+ }
+ if (text[index] == '0') {
+ if (SDL_tolower((unsigned char) text[index + 1]) == 'x') {
+ radix = 16;
+ } else {
+ radix = 8;
+ }
+ }
+ }
+ /* Fall through to %d handling */
+ case 'd':
+ if (inttype == DO_LONGLONG) {
+ Sint64 value;
+ text += SDL_ScanLongLong(text, radix, &value);
+ if (!suppress) {
+ Sint64 *valuep = va_arg(ap, Sint64 *);
+ *valuep = value;
+ ++retval;
+ }
+ } else {
+ long value;
+ text += SDL_ScanLong(text, radix, &value);
+ if (!suppress) {
+ switch (inttype) {
+ case DO_SHORT:
+ {
+ short *valuep = va_arg(ap, short *);
+ *valuep = (short) value;
+ }
+ break;
+ case DO_INT:
+ {
+ int *valuep = va_arg(ap, int *);
+ *valuep = (int) value;
+ }
+ break;
+ case DO_LONG:
+ {
+ long *valuep = va_arg(ap, long *);
+ *valuep = value;
+ }
+ break;
+ case DO_LONGLONG:
+ /* Handled above */
+ break;
+ }
+ ++retval;
+ }
+ }
+ done = SDL_TRUE;
+ break;
+ case 'o':
+ if (radix == 10) {
+ radix = 8;
+ }
+ /* Fall through to unsigned handling */
+ case 'x':
+ case 'X':
+ if (radix == 10) {
+ radix = 16;
+ }
+ /* Fall through to unsigned handling */
+ case 'u':
+ if (inttype == DO_LONGLONG) {
+ Uint64 value;
+ text += SDL_ScanUnsignedLongLong(text, radix, &value);
+ if (!suppress) {
+ Uint64 *valuep = va_arg(ap, Uint64 *);
+ *valuep = value;
+ ++retval;
+ }
+ } else {
+ unsigned long value;
+ text += SDL_ScanUnsignedLong(text, radix, &value);
+ if (!suppress) {
+ switch (inttype) {
+ case DO_SHORT:
+ {
+ short *valuep = va_arg(ap, short *);
+ *valuep = (short) value;
+ }
+ break;
+ case DO_INT:
+ {
+ int *valuep = va_arg(ap, int *);
+ *valuep = (int) value;
+ }
+ break;
+ case DO_LONG:
+ {
+ long *valuep = va_arg(ap, long *);
+ *valuep = value;
+ }
+ break;
+ case DO_LONGLONG:
+ /* Handled above */
+ break;
+ }
+ ++retval;
+ }
+ }
+ done = SDL_TRUE;
+ break;
+ case 'p':
+ {
+ uintptr_t value;
+ text += SDL_ScanUintPtrT(text, 16, &value);
+ if (!suppress) {
+ void **valuep = va_arg(ap, void **);
+ *valuep = (void *) value;
+ ++retval;
+ }
+ }
+ done = SDL_TRUE;
+ break;
+ case 'f':
+ {
+ double value;
+ text += SDL_ScanFloat(text, &value);
+ if (!suppress) {
+ float *valuep = va_arg(ap, float *);
+ *valuep = (float) value;
+ ++retval;
+ }
+ }
+ done = SDL_TRUE;
+ break;
+ case 's':
+ if (suppress) {
+ while (!SDL_isspace((unsigned char) *text)) {
+ ++text;
+ if (count) {
+ if (--count == 0) {
+ break;
+ }
+ }
+ }
+ } else {
+ char *valuep = va_arg(ap, char *);
+ while (!SDL_isspace((unsigned char) *text)) {
+ *valuep++ = *text++;
+ if (count) {
+ if (--count == 0) {
+ break;
+ }
+ }
+ }
+ *valuep = '\0';
+ ++retval;
+ }
+ done = SDL_TRUE;
+ break;
+ default:
+ done = SDL_TRUE;
+ break;
+ }
+ ++fmt;
+ }
+ continue;
+ }
+ if (*text == *fmt) {
+ ++text;
+ ++fmt;
+ continue;
+ }
+ /* Text didn't match format specifier */
+ break;
+ }
+
+ return retval;
+}
+#endif /* HAVE_VSSCANF */
+
+int
+SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, ...)
+{
+ va_list ap;
+ int retval;
+
+ va_start(ap, fmt);
+ retval = SDL_vsnprintf(text, maxlen, fmt, ap);
+ va_end(ap);
+
+ return retval;
+}
+
+#ifdef HAVE_VSNPRINTF
+int SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap)
+{
+ if (!fmt) {
+ fmt = "";
+ }
+ return vsnprintf(text, maxlen, fmt, ap);
+}
+#else
+ /* FIXME: implement more of the format specifiers */
+typedef enum
+{
+ SDL_CASE_NOCHANGE,
+ SDL_CASE_LOWER,
+ SDL_CASE_UPPER
+} SDL_letter_case;
+
+typedef struct
+{
+ SDL_bool left_justify;
+ SDL_bool force_sign;
+ SDL_bool force_type;
+ SDL_bool pad_zeroes;
+ SDL_letter_case force_case;
+ int width;
+ int radix;
+ int precision;
+} SDL_FormatInfo;
+
+static size_t
+SDL_PrintString(char *text, size_t maxlen, SDL_FormatInfo *info, const char *string)
+{
+ size_t length = 0;
+
+ if (info && info->width && (size_t)info->width > SDL_strlen(string)) {
+ char fill = info->pad_zeroes ? '0' : ' ';
+ size_t width = info->width - SDL_strlen(string);
+ while (width-- > 0 && maxlen > 0) {
+ *text++ = fill;
+ ++length;
+ --maxlen;
+ }
+ }
+
+ length += SDL_strlcpy(text, string, maxlen);
+
+ if (info) {
+ if (info->force_case == SDL_CASE_LOWER) {
+ SDL_strlwr(text);
+ } else if (info->force_case == SDL_CASE_UPPER) {
+ SDL_strupr(text);
+ }
+ }
+ return length;
+}
+
+static size_t
+SDL_PrintLong(char *text, size_t maxlen, SDL_FormatInfo *info, long value)
+{
+ char num[130];
+
+ SDL_ltoa(value, num, info ? info->radix : 10);
+ return SDL_PrintString(text, maxlen, info, num);
+}
+
+static size_t
+SDL_PrintUnsignedLong(char *text, size_t maxlen, SDL_FormatInfo *info, unsigned long value)
+{
+ char num[130];
+
+ SDL_ultoa(value, num, info ? info->radix : 10);
+ return SDL_PrintString(text, maxlen, info, num);
+}
+
+static size_t
+SDL_PrintLongLong(char *text, size_t maxlen, SDL_FormatInfo *info, Sint64 value)
+{
+ char num[130];
+
+ SDL_lltoa(value, num, info ? info->radix : 10);
+ return SDL_PrintString(text, maxlen, info, num);
+}
+
+static size_t
+SDL_PrintUnsignedLongLong(char *text, size_t maxlen, SDL_FormatInfo *info, Uint64 value)
+{
+ char num[130];
+
+ SDL_ulltoa(value, num, info ? info->radix : 10);
+ return SDL_PrintString(text, maxlen, info, num);
+}
+
+static size_t
+SDL_PrintFloat(char *text, size_t maxlen, SDL_FormatInfo *info, double arg)
+{
+ int width;
+ size_t len;
+ size_t left = maxlen;
+ char *textstart = text;
+
+ if (arg) {
+ /* This isn't especially accurate, but hey, it's easy. :) */
+ unsigned long value;
+
+ if (arg < 0) {
+ if (left > 1) {
+ *text = '-';
+ --left;
+ }
+ ++text;
+ arg = -arg;
+ } else if (info->force_sign) {
+ if (left > 1) {
+ *text = '+';
+ --left;
+ }
+ ++text;
+ }
+ value = (unsigned long) arg;
+ len = SDL_PrintUnsignedLong(text, left, NULL, value);
+ text += len;
+ if (len >= left) {
+ left = SDL_min(left, 1);
+ } else {
+ left -= len;
+ }
+ arg -= value;
+ if (info->precision < 0) {
+ info->precision = 6;
+ }
+ if (info->force_type || info->precision > 0) {
+ int mult = 10;
+ if (left > 1) {
+ *text = '.';
+ --left;
+ }
+ ++text;
+ while (info->precision-- > 0) {
+ value = (unsigned long) (arg * mult);
+ len = SDL_PrintUnsignedLong(text, left, NULL, value);
+ text += len;
+ if (len >= left) {
+ left = SDL_min(left, 1);
+ } else {
+ left -= len;
+ }
+ arg -= (double) value / mult;
+ mult *= 10;
+ }
+ }
+ } else {
+ if (left > 1) {
+ *text = '0';
+ --left;
+ }
+ ++text;
+ if (info->force_type) {
+ if (left > 1) {
+ *text = '.';
+ --left;
+ }
+ ++text;
+ }
+ }
+
+ width = info->width - (int)(text - textstart);
+ if (width > 0) {
+ char fill = info->pad_zeroes ? '0' : ' ';
+ char *end = text+left-1;
+ len = (text - textstart);
+ for (len = (text - textstart); len--; ) {
+ if ((textstart+len+width) < end) {
+ *(textstart+len+width) = *(textstart+len);
+ }
+ }
+ len = (size_t)width;
+ text += len;
+ if (len >= left) {
+ left = SDL_min(left, 1);
+ } else {
+ left -= len;
+ }
+ while (len--) {
+ if (textstart+len < end) {
+ textstart[len] = fill;
+ }
+ }
+ }
+
+ return (text - textstart);
+}
+
+int
+SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap)
+{
+ size_t left = maxlen;
+ char *textstart = text;
+
+ if (!fmt) {
+ fmt = "";
+ }
+ while (*fmt) {
+ if (*fmt == '%') {
+ SDL_bool done = SDL_FALSE;
+ size_t len = 0;
+ SDL_bool check_flag;
+ SDL_FormatInfo info;
+ enum
+ {
+ DO_INT,
+ DO_LONG,
+ DO_LONGLONG
+ } inttype = DO_INT;
+
+ SDL_zero(info);
+ info.radix = 10;
+ info.precision = -1;
+
+ check_flag = SDL_TRUE;
+ while (check_flag) {
+ ++fmt;
+ switch (*fmt) {
+ case '-':
+ info.left_justify = SDL_TRUE;
+ break;
+ case '+':
+ info.force_sign = SDL_TRUE;
+ break;
+ case '#':
+ info.force_type = SDL_TRUE;
+ break;
+ case '0':
+ info.pad_zeroes = SDL_TRUE;
+ break;
+ default:
+ check_flag = SDL_FALSE;
+ break;
+ }
+ }
+
+ if (*fmt >= '0' && *fmt <= '9') {
+ info.width = SDL_strtol(fmt, (char **)&fmt, 0);
+ }
+
+ if (*fmt == '.') {
+ ++fmt;
+ if (*fmt >= '0' && *fmt <= '9') {
+ info.precision = SDL_strtol(fmt, (char **)&fmt, 0);
+ } else {
+ info.precision = 0;
+ }
+ }
+
+ while (!done) {
+ switch (*fmt) {
+ case '%':
+ if (left > 1) {
+ *text = '%';
+ }
+ len = 1;
+ done = SDL_TRUE;
+ break;
+ case 'c':
+ /* char is promoted to int when passed through (...) */
+ if (left > 1) {
+ *text = (char) va_arg(ap, int);
+ }
+ len = 1;
+ done = SDL_TRUE;
+ break;
+ case 'h':
+ /* short is promoted to int when passed through (...) */
+ break;
+ case 'l':
+ if (inttype < DO_LONGLONG) {
+ ++inttype;
+ }
+ break;
+ case 'I':
+ if (SDL_strncmp(fmt, "I64", 3) == 0) {
+ fmt += 2;
+ inttype = DO_LONGLONG;
+ }
+ break;
+ case 'i':
+ case 'd':
+ switch (inttype) {
+ case DO_INT:
+ len = SDL_PrintLong(text, left, &info,
+ (long) va_arg(ap, int));
+ break;
+ case DO_LONG:
+ len = SDL_PrintLong(text, left, &info,
+ va_arg(ap, long));
+ break;
+ case DO_LONGLONG:
+ len = SDL_PrintLongLong(text, left, &info,
+ va_arg(ap, Sint64));
+ break;
+ }
+ done = SDL_TRUE;
+ break;
+ case 'p':
+ case 'x':
+ info.force_case = SDL_CASE_LOWER;
+ /* Fall through to 'X' handling */
+ case 'X':
+ if (info.force_case == SDL_CASE_NOCHANGE) {
+ info.force_case = SDL_CASE_UPPER;
+ }
+ if (info.radix == 10) {
+ info.radix = 16;
+ }
+ if (*fmt == 'p') {
+ inttype = DO_LONG;
+ }
+ /* Fall through to unsigned handling */
+ case 'o':
+ if (info.radix == 10) {
+ info.radix = 8;
+ }
+ /* Fall through to unsigned handling */
+ case 'u':
+ info.pad_zeroes = SDL_TRUE;
+ switch (inttype) {
+ case DO_INT:
+ len = SDL_PrintUnsignedLong(text, left, &info,
+ (unsigned long)
+ va_arg(ap, unsigned int));
+ break;
+ case DO_LONG:
+ len = SDL_PrintUnsignedLong(text, left, &info,
+ va_arg(ap, unsigned long));
+ break;
+ case DO_LONGLONG:
+ len = SDL_PrintUnsignedLongLong(text, left, &info,
+ va_arg(ap, Uint64));
+ break;
+ }
+ done = SDL_TRUE;
+ break;
+ case 'f':
+ len = SDL_PrintFloat(text, left, &info, va_arg(ap, double));
+ done = SDL_TRUE;
+ break;
+ case 's':
+ len = SDL_PrintString(text, left, &info, va_arg(ap, char *));
+ done = SDL_TRUE;
+ break;
+ default:
+ done = SDL_TRUE;
+ break;
+ }
+ ++fmt;
+ }
+ text += len;
+ if (len >= left) {
+ left = SDL_min(left, 1);
+ } else {
+ left -= len;
+ }
+ } else {
+ if (left > 1) {
+ *text = *fmt;
+ --left;
+ }
+ ++fmt;
+ ++text;
+ }
+ }
+ if (left > 0) {
+ *text = '\0';
+ }
+ return (int)(text - textstart);
+}
+#endif /* HAVE_VSNPRINTF */
+
+/* vi: set ts=4 sw=4 expandtab: */