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| void | sleep_ms (int milliseconds) | 
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| string & | gsub (const string &pattern, const string &sub, string &str) | 
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| string & | gsub (const char *pattern, const char *sub, string &str) | 
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| string | d2s (double value, int precision=100) | 
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| string | i2s (int value) | 
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| string | i2s (long int value) | 
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| string | i2s (unsigned int value) | 
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| string | i2s (unsigned long int value) | 
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| const char * | b2yn (bool b, bool capital=true) | 
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| const char * | b2tf (bool b, bool capital=true) | 
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| const char * | b2oo (bool b, bool capital=true) | 
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| string | p2s (void *o) | 
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| int | s2i (const string &str) | 
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| int | s2i (const char *str) | 
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| void * | s2p (const string &str) | 
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| void * | s2p (const char *str) | 
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| void | now (int &hour, int &min, int &sec) | 
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| size_t | find_ending_bracket (const string &str, size_t start, int *missing=NULL) | 
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| char | op2ch (MathOperation op) | 
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| string & | wrap_p (string &str) | 
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| string & | remove_blanks (string &str) | 
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| string & | remove_duplicate_blanks (string &str) | 
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| string & | remove_blank_ends (string &str) | 
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| string & | remove_parenthesis (string &str) | 
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| bool | is_in (const char *str, char c) | 
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| bool | is_not_in (const char *str, char c) | 
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| bool | is_in (const string &str, char c) | 
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| bool | is_not_in (const string &str, char c) | 
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| int | sign_place (string *str, size_t start=0) | 
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| int | gcd (int i1, int i2) | 
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| char * | locale_to_utf8 (const char *str) | 
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| char * | locale_from_utf8 (const char *str) | 
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| char * | utf8_strdown (const char *str, int l=-1) | 
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| size_t | unicode_length (const string &str) | 
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| size_t | unicode_length (const char *str) | 
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| bool | text_length_is_one (const string &str) | 
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| bool | equalsIgnoreCase (const string &str1, const string &str2) | 
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| bool | equalsIgnoreCase (const string &str1, const char *str2) | 
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| void | parse_qalculate_version (string qalculate_version, int *qalculate_version_numbers) | 
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| string | getOldLocalDir () | 
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| string | getLocalDir () | 
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| string | getPackageDataDir () | 
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| string | getGlobalDefinitionsDir () | 
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| string | getPackageLocaleDir () | 
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| string | getLocalDataDir () | 
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| string | getLocalTmpDir () | 
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| string | buildPath (string dir, string filename) | 
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| string | buildPath (string dir1, string dir2, string filename) | 
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| string | buildPath (string dir1, string dir2, string dir3, string filename) | 
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| bool | dirExists (string dirpath) | 
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| bool | fileExists (string dirpath) | 
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| bool | makeDir (string dirpath) | 
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| bool | recursiveMakeDir (string dirpath) | 
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| bool | removeDir (string dirpath) | 
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| bool | move_file (const char *from_file, const char *to_file) | 
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| int | checkAvailableVersion (const char *version_id, const char *current_version, string *avaible_version=NULL, int timeout=5) | 
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