41 lines
990 B
C
41 lines
990 B
C
#include <lib/stdio.h>
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//TODO: precision handling
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int printf_common(struct printf_opt *opt, const char *restrict format)
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{
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extern int printf_get_options(struct printf_opt *opt, const char *restrict format);
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int saved_p;
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int p;
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p = -1;
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opt->counter = 0;
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opt->buffer_cursor = 0;
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while (format[++p] != '\0')
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{
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// Check printable char
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if (format[p] != '%' || format[p + 1] == '%') {
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(*opt->disp_char)(opt, (format[p] != '%') ? format[p] : format[++p]);
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continue;
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}
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// Get options
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saved_p = p;
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p = p + printf_get_options(opt, &format[p + 1]);
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// Check arg validity
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if (((format[p + 1] >= 'a' && format[p + 1] <= 'z') ||
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(format[p + 1] >= 'A' && format[p + 1] <= 'Z')) &&
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action[(format[p + 1] | 0x20) - 'a'] != NULL) {
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(*action[(format[p + 1] | 0x20) - 'a'])(opt, format[p + 1] | 0x20);
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p = p + 1;
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continue;
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}
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// Default, print the %
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(*opt->disp_char)(opt, '%');
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p = saved_p;
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}
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(*opt->disp_fflush)(opt);
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return (opt->counter);
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}
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