misc.c
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misc.c
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	#include "cli/misc.h"
	#include "messages.h"

	#include <stdio.h>
	#include <argtable3.h>
	#include <crprintf.h>

	void print_flag(FILE *fp, flag_help_t f) {
	const char s = f.s, l = f.l, d = f.d, g = f.g;
	int opt = f.opt;

	char syn[200];
	crsprintf(syn, sizeof(syn),
	"<cyan>%s</cyan>%s<cyan>%s%s%s%s</cyan>",
	s ? (char[]){'-', s[0], '\0'} : (l ? " " : ""),
	s && l ? ", " : "",
	l ? "--" : "",
	l ? l : "",
	d && l && opt ? "[=" :
	d && l ? "=" :
	d && s ? " " : "",
	d ? d : "");

	crfprintf(fp, "<space=2/><pad=32>%s</pad> %s</>\n", syn, g);
	}

	void print_flags_help(FILE fp, void *argtable) {
	struct arg_hdr table = (struct arg_hdr )argtable;
	for (int i = 0; !(table[i]->flag & ARG_TERMINATOR); i++) {
	struct arg_hdr *hdr = table[i];
	if (!hdr->glossary) continue;
	print_flag(fp, (flag_help_t){
	.s = hdr->shortopts, .l = hdr->longopts,
	.d = hdr->datatype, .g = hdr->glossary,
	.opt = hdr->flag & ARG_HASOPTVALUE,
	});}
	}

	void print_errors(FILE fp, struct arg_end end) {
	for (int i = 0; i < end->count; i++) {
	int error = end->error[i];
	const char *argval = end->argval[i] ? end->argval[i] : "";
	switch (error) {
	case ARG_ENOMATCH: { crfprintf(fp, msg.arg_unexpected, argval); break; }
	case ARG_EMISSARG: { crfprintf(fp, msg.arg_opt_needed, argval); break; }
	case ARG_ELONGOPT: { crfprintf(fp, msg.arg_invalid, argval); break; }
	default: { if (error > 0) crfprintf(fp, msg.opt_invalid, error); break; }
	}} fputc('\n', fp);
	}