return current_ms - base_ms;
}
-void InitCounter() // set counter back to zero
+void InitCounter(void) // set counter back to zero
{
mainCounter(INIT_COUNTER);
}
-unsigned int Counter() // get milliseconds since last call of InitCounter()
+unsigned int Counter(void) // get milliseconds since last call of InitCounter()
{
return mainCounter(READ_COUNTER);
}
// various string functions
// ----------------------------------------------------------------------------
-char *getStringCat2WithSeparator(char *s1, char *s2, char *sep)
+char *getStringCat2WithSeparator(const char *s1,
+ const char *s2,
+ const char *sep)
{
if (s1 == NULL || s2 == NULL || sep == NULL)
return NULL;
return complete_string;
}
-char *getStringCat3WithSeparator(char *s1, char *s2, char *s3, char *sep)
+char *getStringCat3WithSeparator(const char *s1,
+ const char *s2,
+ const char *s3,
+ const char *sep)
{
if (s1 == NULL || s2 == NULL || s3 == NULL || sep == NULL)
return NULL;
return complete_string;
}
-char *getStringCat2(char *s1, char *s2)
+char *getStringCat2(const char *s1, const char *s2)
{
return getStringCat2WithSeparator(s1, s2, "");
}
-char *getStringCat3(char *s1, char *s2, char *s3)
+char *getStringCat3(const char *s1, const char *s2, const char *s3)
{
return getStringCat3WithSeparator(s1, s2, s3, "");
}
-char *getPath2(char *path1, char *path2)
+char *getPath2(const char *path1, const char *path2)
{
#if defined(PLATFORM_ANDROID)
// workaround for reading from assets directory -- skip "." subdirs in path
return getStringCat2WithSeparator(path1, path2, STRING_PATH_SEPARATOR);
}
-char *getPath3(char *path1, char *path2, char *path3)
+char *getPath3(const char *path1, const char *path2, const char *path3)
{
#if defined(PLATFORM_ANDROID)
// workaround for reading from assets directory -- skip "." subdirs in path
return filename;
}
-char *getImg2(char *path1, char *path2)
+char *getImg2(const char *path1, const char *path2)
{
return getPngOrPcxIfNotExists(getPath2(path1, path2));
}
-char *getImg3(char *path1, char *path2, char *path3)
+char *getImg3(const char *path1, const char *path2, const char *path3)
{
return getPngOrPcxIfNotExists(getPath3(path1, path2, path3));
}
return s_copy;
}
+char *getStringToUpper(const char *s)
+{
+ char *s_copy = checked_malloc(strlen(s) + 1);
+ char *s_ptr = s_copy;
+
+ while (*s)
+ *s_ptr++ = toupper(*s++);
+ *s_ptr = '\0';
+
+ return s_copy;
+}
+
char *getStringToLower(const char *s)
{
char *s_copy = checked_malloc(strlen(s) + 1);
return s_copy;
}
-void setString(char **old_value, char *new_value)
+static char *getStringVPrint(char *format, va_list ap)
+{
+ char s[MAX_LINE_LEN];
+
+ vsnprintf(s, MAX_LINE_LEN, format, ap); // may truncate output string
+
+ return getStringCopy(s);
+}
+
+char *getStringPrint(char *format, ...)
+{
+ va_list ap;
+ char *s;
+
+ va_start(ap, format);
+ s = getStringVPrint(format, ap);
+ va_end(ap);
+
+ return s;
+}
+
+void setStringPrint(char **s, char *format, ...)
+{
+ va_list ap;
+
+ checked_free(*s);
+
+ va_start(ap, format);
+ *s = getStringVPrint(format, ap);
+ va_end(ap);
+}
+
+void appendStringPrint(char **s_old, char *format, ...)
+{
+ va_list ap;
+ char *s_new;
+
+ va_start(ap, format);
+ s_new = getStringVPrint(format, ap);
+ va_end(ap);
+
+ char *s_combined = getStringCat2(*s_old, s_new);
+
+ checked_free(*s_old);
+ checked_free(s_new);
+
+ *s_old = s_combined;
+}
+
+void setString(char **old_value, const char *new_value)
{
checked_free(*old_value);
*old_value = getStringCopy(new_value);
}
-boolean strEqual(char *s1, char *s2)
+char **getSplitStringArray(const char *s, const char *separators, int max_tokens)
+{
+ const char *s_ptr, *s_last = s;
+ byte separator_table[256] = { FALSE };
+ int num_tokens;
+ char **tokens = NULL;
+
+ if (s == NULL)
+ return NULL;
+
+ if (separators == NULL)
+ return NULL;
+
+ if (max_tokens < 1)
+ max_tokens = INT_MAX;
+
+ // if string is empty, return empty array
+ if (*s == '\0')
+ {
+ tokens = checked_malloc(sizeof(char *));
+ tokens[0] = NULL;
+
+ return tokens;
+ }
+
+ // initialize separator table for all characters in separators string
+ for (s_ptr = separators; *s_ptr != '\0'; s_ptr++)
+ separator_table[*(byte *)s_ptr] = TRUE;
+
+ // count number of tokens in string
+ for (num_tokens = 1, s_ptr = s; *s_ptr != '\0'; s_ptr++)
+ if (separator_table[*(byte *)s_ptr] && num_tokens < max_tokens)
+ num_tokens++;
+
+ // allocate array for determined number of tokens
+ tokens = checked_malloc((num_tokens + 1) * sizeof(char *));
+
+ // copy all but last separated sub-strings to array
+ for (num_tokens = 0, s_ptr = s; *s_ptr != '\0'; s_ptr++)
+ {
+ if (separator_table[*(byte *)s_ptr] && num_tokens + 1 < max_tokens)
+ {
+ tokens[num_tokens++] = getStringCopyN(s_last, s_ptr - s_last);
+ s_last = s_ptr + 1;
+ }
+ }
+
+ // copy last separated sub-string to array
+ tokens[num_tokens++] = getStringCopyN(s_last, s_ptr - s_last);
+
+ // terminate array
+ tokens[num_tokens] = NULL;
+
+ return tokens;
+}
+
+int getStringArrayLength(char **s_array)
+{
+ int num_strings = 0;
+
+ if (s_array == NULL)
+ return 0;
+
+ while (s_array[num_strings] != NULL)
+ num_strings++;
+
+ return num_strings;
+}
+
+void freeStringArray(char **s_array)
+{
+ int i;
+
+ if (s_array == NULL)
+ return;
+
+ for (i = 0; s_array[i] != NULL; i++)
+ checked_free(s_array[i]);
+
+ checked_free(s_array);
+}
+
+char *getEscapedString(const char *s)
+{
+ const unsigned char *s_ptr = (unsigned char *)s;
+ char *s_escaped;
+ char *s_escaped_ptr;
+
+ if (s == NULL)
+ return NULL;
+
+ /* Each source byte needs maximally four target chars (\777) */
+ s_escaped = checked_malloc(strlen(s) * 4 + 1);
+ s_escaped_ptr = s_escaped;
+
+ while (*s_ptr != '\0')
+ {
+ switch (*s_ptr)
+ {
+ case '\b':
+ *s_escaped_ptr++ = '\\';
+ *s_escaped_ptr++ = 'b';
+ break;
+
+ case '\f':
+ *s_escaped_ptr++ = '\\';
+ *s_escaped_ptr++ = 'f';
+ break;
+
+ case '\n':
+ *s_escaped_ptr++ = '\\';
+ *s_escaped_ptr++ = 'n';
+ break;
+
+ case '\r':
+ *s_escaped_ptr++ = '\\';
+ *s_escaped_ptr++ = 'r';
+ break;
+
+ case '\t':
+ *s_escaped_ptr++ = '\\';
+ *s_escaped_ptr++ = 't';
+ break;
+
+ case '\v':
+ *s_escaped_ptr++ = '\\';
+ *s_escaped_ptr++ = 'v';
+ break;
+
+ case '\\':
+ *s_escaped_ptr++ = '\\';
+ *s_escaped_ptr++ = '\\';
+ break;
+
+ case '"':
+ *s_escaped_ptr++ = '\\';
+ *s_escaped_ptr++ = '"';
+ break;
+
+ default:
+ if ((*s_ptr < ' ') || (*s_ptr >= 0177))
+ {
+ *s_escaped_ptr++ = '\\';
+ *s_escaped_ptr++ = '0' + (((*s_ptr) >> 6) & 07);
+ *s_escaped_ptr++ = '0' + (((*s_ptr) >> 3) & 07);
+ *s_escaped_ptr++ = '0' + ( (*s_ptr) & 07);
+ }
+ else
+ {
+ *s_escaped_ptr++ = *s_ptr;
+ }
+ break;
+ }
+
+ s_ptr++;
+ }
+
+ *s_escaped_ptr = '\0';
+
+ return s_escaped;
+}
+
+char *getUnescapedString(const char *s)
+{
+ const char *s_ptr = s;
+ const char *octal_ptr;
+ char *s_unescaped;
+ char *s_unescaped_ptr;
+
+ if (s == NULL)
+ return NULL;
+
+ s_unescaped = checked_malloc(strlen(s) + 1);
+ s_unescaped_ptr = s_unescaped;
+
+ while (*s_ptr != '\0')
+ {
+ if (*s_ptr == '\\')
+ {
+ s_ptr++;
+
+ switch (*s_ptr)
+ {
+ case '\0':
+ Warn("getUnescapedString: trailing \\");
+ goto out;
+
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ *s_unescaped_ptr = 0;
+ octal_ptr = s_ptr;
+
+ while (s_ptr < octal_ptr + 3 && *s_ptr >= '0' && *s_ptr <= '7')
+ {
+ *s_unescaped_ptr = (*s_unescaped_ptr * 8) + (*s_ptr - '0');
+ s_ptr++;
+ }
+
+ s_unescaped_ptr++;
+ s_ptr--;
+ break;
+
+ case 'b':
+ *s_unescaped_ptr++ = '\b';
+ break;
+
+ case 'f':
+ *s_unescaped_ptr++ = '\f';
+ break;
+
+ case 'n':
+ *s_unescaped_ptr++ = '\n';
+ break;
+
+ case 'r':
+ *s_unescaped_ptr++ = '\r';
+ break;
+
+ case 't':
+ *s_unescaped_ptr++ = '\t';
+ break;
+
+ case 'v':
+ *s_unescaped_ptr++ = '\v';
+ break;
+
+ default:
+ /* also handles \" and \\ */
+ *s_unescaped_ptr++ = *s_ptr;
+ break;
+ }
+ }
+ else
+ {
+ *s_unescaped_ptr++ = *s_ptr;
+ }
+
+ s_ptr++;
+ }
+
+ out:
+ *s_unescaped_ptr = '\0';
+
+ return s_unescaped;
+}
+
+char *chugString(char *s)
+{
+ if (s == NULL)
+ return NULL;
+
+ char *start;
+
+ for (start = (char *)s; *start && isspace(*start); start++)
+ ;
+
+ memmove(s, start, strlen(start) + 1);
+
+ return s;
+}
+
+char *chompString(char *s)
+{
+ if (s == NULL)
+ return NULL;
+
+ int len = strlen(s);
+
+ while (len--)
+ {
+ if (isspace(s[len]))
+ s[len] = '\0';
+ else
+ break;
+ }
+
+ return s;
+}
+
+char *stripString(char *s)
+{
+ return chugString(chompString(s));
+}
+
+boolean strEqual(const char *s1, const char *s2)
{
return (s1 == NULL && s2 == NULL ? TRUE :
s1 == NULL && s2 != NULL ? FALSE :
strcmp(s1, s2) == 0);
}
-boolean strEqualN(char *s1, char *s2, int n)
+boolean strEqualN(const char *s1, const char *s2, int n)
{
return (s1 == NULL && s2 == NULL ? TRUE :
s1 == NULL && s2 != NULL ? FALSE :
strncmp(s1, s2, n) == 0);
}
-boolean strEqualCase(char *s1, char *s2)
+boolean strEqualCase(const char *s1, const char *s2)
{
return (s1 == NULL && s2 == NULL ? TRUE :
s1 == NULL && s2 != NULL ? FALSE :
strcasecmp(s1, s2) == 0);
}
-boolean strEqualCaseN(char *s1, char *s2, int n)
+boolean strEqualCaseN(const char *s1, const char *s2, int n)
{
return (s1 == NULL && s2 == NULL ? TRUE :
s1 == NULL && s2 != NULL ? FALSE :
strncasecmp(s1, s2, n) == 0);
}
-boolean strPrefix(char *s, char *prefix)
+boolean strPrefix(const char *s, const char *prefix)
{
return (s == NULL && prefix == NULL ? TRUE :
s == NULL && prefix != NULL ? FALSE :
strncmp(s, prefix, strlen(prefix)) == 0);
}
-boolean strSuffix(char *s, char *suffix)
+boolean strSuffix(const char *s, const char *suffix)
{
return (s == NULL && suffix == NULL ? TRUE :
s == NULL && suffix != NULL ? FALSE :
strcmp(&s[strlen(s) - strlen(suffix)], suffix) == 0);
}
-boolean strPrefixLower(char *s, char *prefix)
+boolean strPrefixLower(const char *s, const char *prefix)
{
char *s_lower = getStringToLower(s);
boolean match = strPrefix(s_lower, prefix);
return match;
}
-boolean strSuffixLower(char *s, char *suffix)
+boolean strSuffixLower(const char *s, const char *suffix)
{
char *s_lower = getStringToLower(s);
boolean match = strSuffix(s_lower, suffix);
return match;
}
-boolean isURL(char *s)
+boolean isURL(const char *s)
{
while (*s && *s >= 'a' && *s <= 'z')
s++;
options.player_name = NULL;
options.identifier = NULL;
options.level_nr = NULL;
+ options.drop_file = NULL;
options.display_nr = 0;
if (option_arg == next_option)
options_left++;
}
+ else if (strncmp(option, "-drop-file", option_len) == 0)
+ {
+ if (option_arg == NULL)
+ FailWithHelp("option '%s' requires an argument", option_str);
+
+ options.drop_file = getStringCopy(option_arg);
+ if (option_arg == next_option)
+ options_left++;
+ }
else if (strncmp(option, "-verbose", option_len) == 0)
{
options.verbose = TRUE;
#endif
}
+void *get_memcpy(const void *m, size_t size)
+{
+ void *m_copy;
+
+ if (m == NULL)
+ return NULL;
+
+ m_copy = checked_malloc(size);
+ memcpy(m_copy, m, size);
+
+ return m_copy;
+}
+
// ----------------------------------------------------------------------------
// various helper functions
*y2 = help_y;
}
+int get_number_of_bits(int bits)
+{
+ /*
+ Counting bits set, Brian Kernighan's way
+
+ Brian Kernighan's method goes through as many iterations as there are set
+ bits. So if we have a 32-bit word with only the high bit set, then it will
+ only go once through the loop.
+
+ Published in 1988, the C Programming Language 2nd Ed. (by Brian W. Kernighan
+ and Dennis M. Ritchie) mentions this in exercise 2-9.
+ First published by Peter Wegner in CACM 3 (1960), 322.
+ */
+
+ int num_bits = 0;
+
+ while (bits)
+ {
+ bits &= bits - 1; // clear the least significant bit set
+ num_bits++;
+ }
+
+ return num_bits;
+}
+
/* the "put" variants of the following file access functions check for the file
pointer being != NULL and return the number of bytes they have or would have
written; this allows for chunk writing functions to first determine the size
return result;
}
-int get_switch3_from_string(char *s)
+int get_switch_3_state_from_string(char *s)
{
char *s_lower = getStringToLower(s);
int result = FALSE;
get_integer_from_string(s) == 1)
result = TRUE;
else if (strEqual(s_lower, "auto"))
- result = AUTO;
+ result = STATE_AUTO;
+ else if (strEqual(s_lower, "ask"))
+ result = STATE_ASK;
free(s_lower);
#define MAX_BUFFER_SIZE 4096
-File *openFile(char *filename, char *mode)
+File *openFile(const char *filename, const char *mode)
{
File *file = checked_calloc(sizeof(File));
return fgets(line, size, file->file);
}
-int copyFile(char *filename_from, char *filename_to)
+int copyFile(const char *filename_from, const char *filename_to)
{
File *file_from, *file_to;
return 0;
}
-boolean touchFile(char *filename)
+boolean touchFile(const char *filename)
{
FILE *file;
// functions for checking files and filenames
// ----------------------------------------------------------------------------
-boolean directoryExists(char *dir_name)
+boolean directoryExists(const char *dir_name)
{
if (dir_name == NULL)
return FALSE;
return success;
}
-boolean fileExists(char *filename)
+boolean fileExists(const char *filename)
{
if (filename == NULL)
return FALSE;
}
#if 0
-static boolean fileHasPrefix(char *basename, char *prefix)
+static boolean fileHasPrefix(const char *basename, const char *prefix)
{
static char *basename_lower = NULL;
int basename_length, prefix_length;
}
#endif
-static boolean fileHasSuffix(char *basename, char *suffix)
+static boolean fileHasSuffix(const char *basename, const char *suffix)
{
static char *basename_lower = NULL;
int basename_length, suffix_length;