mirror of
https://github.com/gbdev/rgbds.git
synced 2025-11-20 18:22:07 +00:00
43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
/* SPDX-License-Identifier: MIT */
|
|
|
|
#ifndef RGBDS_FORMAT_SPEC_H
|
|
#define RGBDS_FORMAT_SPEC_H
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
enum FormatState {
|
|
FORMAT_SIGN, // expects '+' or ' ' (optional)
|
|
FORMAT_PREFIX, // expects '#' (optional)
|
|
FORMAT_ALIGN, // expects '-' (optional)
|
|
FORMAT_WIDTH, // expects '0'-'9', max 255 (optional) (leading '0' indicates pad)
|
|
FORMAT_FRAC, // got '.', expects '0'-'9', max 255 (optional)
|
|
FORMAT_DONE, // got [duXxbofs] (required)
|
|
FORMAT_INVALID, // got unexpected character
|
|
};
|
|
|
|
class FormatSpec {
|
|
enum FormatState state;
|
|
int sign;
|
|
bool prefix;
|
|
bool alignLeft;
|
|
bool padZero;
|
|
size_t width;
|
|
bool hasFrac;
|
|
size_t fracWidth;
|
|
int type;
|
|
bool valid;
|
|
|
|
public:
|
|
bool isEmpty() const { return !state; }
|
|
bool isValid() const { return valid || state == FORMAT_DONE; }
|
|
bool isFinished() const { return state >= FORMAT_DONE; }
|
|
|
|
void useCharacter(int c);
|
|
void finishCharacters();
|
|
void printString(char *buf, size_t bufLen, char const *value);
|
|
void printNumber(char *buf, size_t bufLen, uint32_t value);
|
|
};
|
|
|
|
#endif // RGBDS_FORMAT_SPEC_H
|