42 lines
801 B
C
42 lines
801 B
C
#include "ctype.h"
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#include "kprintf.h"
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#include "stdlib.h"
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#include "string.h"
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#include "terminal.h"
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#include <stdarg.h>
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static int print_flag(char flag, va_list *ap)
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{
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switch (flag) {
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case '%':
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return terminal_putchar('%');
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case 'i':
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return terminal_writelong(va_arg(*ap, int));
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case 'd':
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return terminal_writelong(va_arg(*ap, int));
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case 'c':
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return terminal_putchar(va_arg(*ap, int));
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case 's':
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return terminal_writestring(va_arg(*ap, char *));
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}
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return 0;
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}
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int kvprintf(int level, const char *restrict format, va_list ap)
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{
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const char *start = format;
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int ret = 0;
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while (*start != '\0') {
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if (*start == '%' && *(start + 1) != '\0') {
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ret += print_flag(*(start + 1), &ap);
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start++;
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} else {
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ret += terminal_putchar(*start);
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}
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start++;
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}
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return ret;
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}
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