keychron_qmk_firmware/users/mtei/pseudo_sprintf.c
2022-04-27 18:19:56 +08:00

54 lines
1.1 KiB
C

// Copyright 2022 Takeshi Ishii (@mtei)
// SPDX-License-Identifier: GPL-2.0-or-later
#include "pseudo_sprintf.h"
static char *sprint_decimal(char *buf, int data) {
if (data > 9) {
buf = sprint_decimal(buf, data/10);
}
*buf++ = "0123456789"[data%10];
*buf = '\0';
return buf;
}
static char *sprint_hex(char *buf, uint32_t data) {
if (data > 0xf) {
buf = sprint_hex(buf, data/0x10);
}
*buf++ = "0123456789abcdef"[data & 0xf];
*buf = '\0';
return buf;
}
char *sprints(char *buf, char *src) {
while (*src) {
*buf++ = *src++;
}
*buf = '\0';
return buf;
}
char *sprintx(char *buf, char *leadstr, uint32_t data) {
buf = sprints(buf, leadstr);
buf = sprint_hex(buf, data);
return buf;
}
char *sprintd(char *buf, char *leadstr, int data) {
buf = sprints(buf, leadstr);
buf = sprint_decimal(buf, data);
return buf;
}
char *sprint2d(char *buf, char *leadstr, int data) {
buf = sprints(buf, leadstr);
if (data > 99) {
return sprint_decimal(buf, data);
}
if (data < 10) {
*buf++ = ' ';
}
return sprint_decimal(buf, data);
}