arduino-audio-tools
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A simple wrapper to provide string functions on existing allocated char*. If the underlying char* is a const we do not allow any updates; The ownership of the char* must be managed externally! More...
#include <StrView.h>
Public Member Functions | |
StrView (char chars[], int maxlen, int len=0) | |
Creates a Str with the indicated buffer. | |
StrView (const char *chars) | |
Creates a Str for string constant. | |
virtual void | add (const char *append) |
adds a string | |
virtual void | add (const char c) |
adds a character | |
virtual void | add (double value, int precision=2, int withd=0) |
adds a double value | |
virtual void | add (int value) |
adds a int value | |
virtual const char * | c_str () |
provides the string value as const char* | |
virtual void | clear () |
clears the string by setting the terminating 0 at the beginning | |
virtual bool | contains (const char *str) |
checks if the string contains a substring | |
bool | containsNumber () |
virtual int | count (char c, int startPos) |
count number of indicated characters as position | |
virtual bool | endsWith (const char *str) |
checks if the string ends with the indicated substring | |
virtual bool | endsWithIgnoreCase (const char *str) |
checks if the string ends with the indicated substring | |
virtual bool | equals (const char *str) |
checks if the string equals indicated parameter string | |
virtual bool | equalsIgnoreCase (const char *alt) const |
Compares the string ignoring the case. | |
virtual int | indexOf (const char *cont, int start=0) |
virtual int | indexOf (const char c, int start=0) |
virtual void | insert (int pos, const char *str) |
inserts a substring into the string | |
virtual bool | isConst () |
checks if the string is a constant that must not be changed | |
virtual bool | isEmpty () |
checks if the string is empty | |
bool | isInteger () |
Returns true if the string is an integer. | |
bool | isNumber () |
virtual bool | isOnHeap () |
checks if the string is on the heap | |
virtual int | lastIndexOf (const char *cont) |
provides the position of the last occurrence of the indicated substring | |
virtual int | length () |
virtual void | ltrim () |
remove leading spaces | |
virtual bool | matches (const char *pattern) |
virtual int | maxLength () |
provides the maximum length of the string | |
virtual int | nIndexOf (const char *cont, int n) |
searches for the nth occurence of the indicated character | |
virtual int | nIndexOf (const char c, int n) |
searches for the nth occurence of the indicated character | |
int | numberOfDecimals () |
Determines the number of decimals in the number string. | |
virtual bool | operator!= (const char *alt) const |
checks if the indicated string is different from the current string | |
virtual bool | operator!= (const StrView &alt) const |
checks if the indicated string is different from the current string | |
virtual void | operator+= (const char *str) |
adds a substring at the end of the string | |
virtual void | operator+= (const char value) |
adds a character | |
virtual void | operator+= (double value) |
adds a double at the end of the string | |
virtual void | operator+= (int value) |
adds a int at the end of the string | |
virtual void | operator<< (int n) |
shift characters to the right -> we just move the pointer | |
virtual void | operator= (char *str) |
we can assign a char* | |
virtual void | operator= (char c) |
we can assign a char | |
virtual void | operator= (const char *str) |
we can assign a const char* | |
virtual void | operator= (double val) |
we can assign a double | |
virtual void | operator= (int value) |
we can assign an int | |
virtual bool | operator== (const char *alt) const |
checks if the indicated string is equal to the current string | |
virtual bool | operator== (const StrView &alt) const |
checks if the indicated string is equal to the current string | |
virtual char | operator[] (int index) |
virtual void | remove (const char *toRemove) |
removes the indicated substring from the string | |
virtual void | removeAll (const char *toRemove) |
removes the indicated substring from the string | |
virtual bool | replace (const char *toReplace, const char *replaced) |
Replaces the first instance of toReplace with replaced. | |
virtual bool | replaceAll (const char *toReplace, const char *replaced) |
Replaces all instances of toReplace with replaced. | |
virtual void | rtrim () |
remove trailing spaces | |
virtual void | set (char chars[], int maxlen, int len=0, bool isConst=false) |
assigns a memory buffer | |
virtual void | set (const char *alt) |
assigs a value | |
virtual void | set (const char c) |
virtual void | set (const StrView &alt) |
assigs from another Str value | |
virtual void | set (double value, int precision=2, int withd=0) |
virtual void | set (int value) |
virtual void | setLength (int len, bool addZero=true) |
limits the length of the string (by adding a delimiting 0) | |
virtual void | setLengthUndo () |
undo the last setLength call | |
virtual bool | startsWith (const char *str) |
checks if the string starts with the indicated substring | |
virtual void | substring (const char *from, int start, int end) |
copies a substring into the current string | |
virtual void | substring (StrView &from, int start, int end) |
copies a substring into the current string | |
virtual void | swap (StrView &str) |
double | toDouble () |
Converts the string to a double. | |
float | toFloat () |
Converts the string to a float. | |
int | toInt () |
Converts the string to an int. | |
long | toLong () |
Converts the string to an long. | |
void | toLowerCase () |
Converts the string to lowercase letters. | |
void | toUpperCase () |
Converts the string to uppercase letters. | |
virtual void | trim () |
remove leading and traling spaces | |
Static Public Member Functions | |
static const char * | toBinary (void const *const ptr, size_t const size) |
provides a binary string represntation | |
Protected Member Functions | |
virtual bool | grow (int newMaxLen) |
only supported in subclasses | |
Static Protected Member Functions | |
static char * | floatToString (char *outstr, double val, int precision, int widthp) |
static char * | itoa (int n, char s[]) |
static void | reverse (char s[]) |
static int | strncmp_i (const char *s1, const char *s2, int n) |
Protected Attributes | |
char * | chars = nullptr |
bool | is_const = false |
int | len = 0 |
int | maxlen = 0 |
char | savedChar |
int | savedLen = -1 |
A simple wrapper to provide string functions on existing allocated char*. If the underlying char* is a const we do not allow any updates; The ownership of the char* must be managed externally!
clears the string by setting the terminating 0 at the beginning
Reimplemented in Str.
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inlinestaticprotected |
compute the rounding factor and fractional multiplier
print the decimal point
generate space padding
only supported in subclasses
Reimplemented in Str.
provides the position of the the indicated substring after the indicated start position
provides the position of the the indicated character after the indicated start position
checks if the string is a constant that must not be changed
Reimplemented in Str.
provides the current length (filled with characters) of the string - excluding the terminating 0
file matching supporting * and ? - replacing regex which is not supported in all environments
returns 1 (true) if there is a match returns 0 if the pattern is not whitin the line
the line is ended but char was expected
end of mask
if the line also ends here then the pattern match
try to restart the mask on the rest
we can assign a const char*
Reimplemented in Str.