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wcwidth: print running measure

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nick black 2020-12-22 16:15:18 -05:00
parent 3be38890c9
commit e6a45d5422
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GPG Key ID: 5F43400C21CBFACC
1 changed files with 48 additions and 32 deletions
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80
src/poc/wcwidth.c
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@ -9,43 +9,59 @@ int main(int argc, char **argv){
if(!setlocale(LC_ALL, "")){
return EXIT_FAILURE;
}
if(argc > 1){
while(*++argv){
const char* arg = *argv;
int totalcols = 0;
size_t totalb = 0;
int i = 0;
while(*arg){
mbstate_t mbs = {};
wchar_t w;
size_t conv = mbrtowc(&w, arg, strlen(arg), &mbs);
if(conv == (size_t)-1 || conv == (size_t)-2){
fprintf(stderr, "Invalid UTF-8: %s\n", arg);
return EXIT_FAILURE;
}
int width = wcwidth(w);
printf("0x%05lx: %d %lc\t", (long)w, width, w);
if(i++ % 4 == 3){
printf("\n");
}
if(width > 0){
totalcols += width;
}
arg += conv;
totalb += conv;
if(argc <= 1){
for(int i = 0 ; i < 128 ; ++i){
wchar_t w = i;
int width = wcwidth(w);
printf("0x%02x: %d%c\t", i, width, width < 0 ? '!' : ' ');
if(i % 4 == 3){
printf("\n");
}
printf("\n Total width: %d total bytes: %zu\n\n", totalcols, totalb);
}
printf("\n");
return EXIT_SUCCESS;
}
for(int i = 0 ; i < 128 ; ++i){
wchar_t w = i;
int width = wcwidth(w);
printf("0x%02x: %d%c\t", i, width, width < 0 ? '!' : ' ');
if(i % 4 == 3){
printf("\n");
while(*++argv){
const char* arg = *argv;
int totalcols = 0;
size_t totalb = 0;
int i = 0;
while(*arg){
mbstate_t mbs = {};
wchar_t w;
size_t conv = mbrtowc(&w, arg, strlen(arg), &mbs);
if(conv == (size_t)-1 || conv == (size_t)-2){
fprintf(stderr, "Invalid UTF-8: %s\n", arg);
return EXIT_FAILURE;
}
int width = wcwidth(w);
printf("0x%05lx: %d %lc\t", (long)w, width, w);
if(i++ % 4 == 3){
printf("\n");
}
if(width > 0){
totalcols += width;
}
arg += conv;
totalb += conv;
}
printf("\n total width: %d total bytes: %zu\n\n", totalcols, totalb);
// FIXME this will be broken if totalcols > screen width
printf("%s\n", *argv);
for(int z = 0 ; z < totalcols ; ++z){
putchar('0' + z % 10);
}
putchar('\n');
if(totalcols > 20){
for(int z = 0 ; z < totalcols ; ++z){
if(z % 10){
putchar(' ');
}else{
putchar('0' + z / 10);
}
}
putchar('\n');
}
}
printf("\n");
return EXIT_SUCCESS;
}