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PoC ncwidth: do a wcswidth() verify pass #1329

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nick black 2021-02-05 02:58:53 -05:00
parent 07db12f5e0
commit db7281ae54
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GPG Key ID: 5F43400C21CBFACC
1 changed files with 21 additions and 1 deletions
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22
src/poc/ncwidth.c
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@ -5,6 +5,22 @@
#include <string.h> #include <string.h>
#include <locale.h> #include <locale.h>
static int
add_wchar(wchar_t** wbuf, size_t* bufsize, size_t* used, wchar_t wc){
if(*used == *bufsize){
const size_t GROW = 128;
wchar_t* tmp = realloc(*wbuf, *bufsize + GROW * sizeof(**wbuf));
if(tmp == NULL){
return -1;
}
*wbuf = tmp;
*bufsize += GROW * sizeof(**wbuf);
}
(*wbuf)[*used] = wc;
++*used;
return 0;
}
int main(int argc, char **argv){ int main(int argc, char **argv){
if(!setlocale(LC_ALL, "")){ if(!setlocale(LC_ALL, "")){
return EXIT_FAILURE; return EXIT_FAILURE;
@ -21,11 +37,14 @@ int main(int argc, char **argv){
printf("\n"); printf("\n");
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }
size_t bufsize = 0, used = 0;
wchar_t* wbuf = NULL;
while(*++argv){ while(*++argv){
const char* arg = *argv; const char* arg = *argv;
int totalcols = 0; int totalcols = 0;
size_t totalb = 0; size_t totalb = 0;
int i = 0; int i = 0;
used = 0;
while(*arg){ while(*arg){
mbstate_t mbs = {}; mbstate_t mbs = {};
wchar_t w; wchar_t w;
@ -44,8 +63,9 @@ int main(int argc, char **argv){
} }
arg += conv; arg += conv;
totalb += conv; totalb += conv;
add_wchar(&wbuf, &bufsize, &used, w);
} }
printf("\n total width: %d total bytes: %zu\n\n", totalcols, totalb); printf("\n total width: %d total bytes: %zu wcswidth: %d\n\n", totalcols, totalb, wcswidth(wbuf, used));
// FIXME this will be broken if totalcols > screen width // FIXME this will be broken if totalcols > screen width
printf("%s\n", *argv); printf("%s\n", *argv);
for(int z = 0 ; z < totalcols ; ++z){ for(int z = 0 ; z < totalcols ; ++z){