GY-63_MS5611/libraries/PrintSize

PrintSize

Arduino library to determine the length of print statements.

Description

PrintSize is a minimal library to determine the length of a variable when printed. This includes printing of floats, integers in decimal or hex notation.

Works for print(), println() and if supported printf() e.g. ESP32.

Since 0.2.0 it has a total counter to add up the characters "printed" since the last reset() call. See examples.

Related

• https://github.com/RobTillaart/PrintCharArray captures data in a char array buffer.
• https://github.com/RobTillaart/PrintSize counts length of a number of print commands.
• https://github.com/RobTillaart/PrintString captures data in a String.

Interface

#include "PrintSize.h"

• PrintSize() Constructor
• size_t write(uint8_t c) core. Note: gives a warning unused parameter.
• size_t write(uint8_t * str, uint8_t length) Note: gives a warning unused parameter.
• void reset() reset the total counter.
• uint32_t total() total bytes "printed".

Operational

Example PrintSize1.ino shows the right alignment of 10 random numbers.

Example PrintSize_total.ino shows (elementary) line fitting.

Applications

Can be used to calculate the needed space.

• to properly do a right alignment e.g. for numbers or variable text.
• do left alignment and overwrite previous output with just enough spaces.
• centring of numbers.
• see if output will fit into a line / display.
• see if a string fits in EEPROM or any other storage medium.
• see if a string fits in a communication buffer.

Future

Must

Should

• add examples
• add a function to handle tab char correctly e.g. could add more than one char. Interferes with the write(str, length).
  • setTabSize(2, 4, 6, 8...);
  • getTabSize();
  • uint8_t _tabSize = 4;

Could

• PRINTSIZE_LIB_VERSION ?

Wont

Support

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Thank you,