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#include "common/strutil.h"
#include "common/textModifier.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
static void verify(bool expression, const char* expressionStr, int lineNo) {
if (expression) {
return;
}
fprintf(stderr, FASTFETCH_TEXT_MODIFIER_ERROR "[%d] %s\n" FASTFETCH_TEXT_MODIFIER_RESET, lineNo, expressionStr);
exit(1);
}
#define VERIFY(expression) verify((expression), #expression, __LINE__)
int main(void) {
#if FF_ENABLE_WCWIDTH
{
uint8_t width = 255;
uint8_t bytes = ffUtf8CharLenWidth("", 0, &width);
VERIFY(bytes == 0);
VERIFY(width == 0);
}
{
uint8_t width = 0;
uint8_t bytes = ffUtf8CharLenWidth("A", 1, &width);
VERIFY(bytes == 1);
VERIFY(width == 1);
}
{
const char* ch = "\xE6\x96\x87"; // 文 U+6587
uint8_t width = 0;
uint8_t bytes = ffUtf8CharLenWidth(ch, 3, &width);
VERIFY(bytes == 3);
VERIFY(width == 2);
}
{
const char* combining = "\xCC\x81"; // ◌́ U+0301
uint8_t width = 0;
uint8_t bytes = ffUtf8CharLenWidth(combining, 2, &width);
VERIFY(bytes == 2);
VERIFY(width == 0); // Should be 1 since there's no base character
}
{
uint8_t width = 0;
uint8_t bytes = ffUtf8CharLenWidth("\xE6\x96\x87", 1, &width); // truncated
VERIFY(bytes == 1);
VERIFY(width == 1);
}
{
uint8_t width = 0;
uint8_t bytes = ffUtf8CharLenWidth("\xE6"
"A",
2,
&width); // invalid continuation
VERIFY(bytes == 1);
VERIFY(width == 1);
}
{
VERIFY(ffUtf8StrWidth("abc", 3) == 3);
}
{
const char* mixed = "A"
"\xE6\x96\x87" // 文 U+6587
"B";
VERIFY(ffUtf8StrWidth(mixed, 5) == 4);
}
{
const char* combining = "A\xCC\x81"; // Á
VERIFY(ffUtf8StrWidth(combining, 3) == 1);
}
{
VERIFY(ffUtf8StrWidth("\xE6"
"A",
2) == 2);
}
{
VERIFY(ffUtf8StrWidth("", 0) == 0);
VERIFY(ffUtf8StrWidth("A\0B", 3) == 1);
}
{
const char* emoji = "\xF0\x9F\x98\x80"; // U+1F600 😀
uint8_t width = 0;
uint8_t bytes = ffUtf8CharLenWidth(emoji, 4, &width);
VERIFY(bytes == 4);
VERIFY(width == 2);
}
puts("\033[32mAll tests passed!" FASTFETCH_TEXT_MODIFIER_RESET);
#else
puts("\033[33mTests skipped because wcwidth support is disabled." FASTFETCH_TEXT_MODIFIER_RESET);
#endif
return 0;
}
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