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#define _GNU_SOURCE
#include <bsd/string.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include "yawa.h"
#include "utils.h"
signed
parse_int(char *string, const char *arg)
{
errno = 0;
char *endptr;
long val = strtol(string, &endptr, 10);
if (errno != 0) {
char *errormsg;
asprintf(&errormsg, "parse_int: failed to parse %s", arg);
perror(errormsg);
free(errormsg);
exit(-2);
}
if (endptr == string) {
fprintf(stderr, "Valid %s not found\n", arg);
exit(-2);
}
return (signed)val;
}
unsigned
parse_uint(char *string, const char *arg)
{
errno = 0;
char *endptr;
unsigned long val = strtoul(string, &endptr, 10);
if (errno != 0) {
char *errormsg;
asprintf(&errormsg, "parse_uint: failed to parse %s", arg);
perror(errormsg);
free(errormsg);
exit(-2);
}
if (endptr == string) {
fprintf(stderr, "Valid %s not found\n", arg);
exit(-2);
}
return (unsigned)val;
}
double
parse_double(char *string, const char *arg)
{
errno = 0;
char *endptr;
double val = strtod(string, &endptr);
if (errno != 0) {
char *errormsg;
asprintf(&errormsg, "parse_double: failed to parse %s", arg);
perror(errormsg);
free(errormsg);
exit(-2);
}
if (endptr == string) {
fprintf(stderr, "Valid %s not found\n", arg);
exit(-2);
}
return val;
}
bool
parse_color(char *hex, Color *c, signed alpha)
{
if ((strlen(hex) != 7) && (strlen(hex) != 9)) {
return false;
}
signed len;
if (strlen(hex) == 9) {
len = 4;
} else {
len = 3;
}
hex++;
signed colors[4];
for (signed i = 0; i < len; hex += 2, i++) {
char color[3];
strlcpy(color, hex, 3);
char *endptr;
errno = 0;
long val = strtol(color, &endptr, 16);
if (errno != 0) {
perror("strtol");
exit(-2);
}
if (endptr == color) {
fprintf(stderr, "No valid hex color found\n");
exit(-2);
}
colors[i] = (signed)val;
}
c->r = colors[0];
c->g = colors[1];
c->b = colors[2];
if (len == 4) {
c->a = colors[3];
} else {
c->a = alpha;
}
return true;
}
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