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Counting chars and multibytes

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NRZ Code 2025-05-01 17:55:58 -03:00
parent fc0b626edf
commit 6ea9c8c737
1 changed files with 45 additions and 11 deletions
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56
wc.c
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@ -1,8 +1,12 @@
#include <getopt.h>
#include <limits.h>
#include <locale.h>
#include <stdbool.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <getopt.h>
#include <stdbool.h> #define FIELDS 5
bool mode_bytes = false; bool mode_bytes = false;
bool mode_chars = false; bool mode_chars = false;
@ -21,7 +25,9 @@ int intlen(int number) {
} }
void wc(char **list, int count) { void wc(char **list, int count) {
setlocale(LC_ALL, "pt_BR.UTF-8");
char buffer[BUFSIZ]; char buffer[BUFSIZ];
size_t mblen;
/** /**
* Items = [ * Items = [
* [0] => lines, * [0] => lines,
@ -32,10 +38,17 @@ void wc(char **list, int count) {
* ] * ]
*/ */
int **items = malloc(count * sizeof(int *)); int **items = malloc(count * sizeof(int *));
for (int i = 0; i < count; i++) { if (!items) {
items[i] = calloc(5, sizeof(int)); perror("Erro na alocação de items");
exit(EXIT_FAILURE);
}
for (int i = 0; i < count; i++) {
items[i] = calloc(FIELDS, sizeof(int));
if (!items[i]) {
perror("Erro na alocação de items[i]");
exit(EXIT_FAILURE);
}
} }
int len;
for (int i = 1; i < count; i++) { for (int i = 1; i < count; i++) {
FILE *stream = fopen(list[i], "r"); FILE *stream = fopen(list[i], "r");
if (stream == NULL) { if (stream == NULL) {
@ -53,26 +66,47 @@ void wc(char **list, int count) {
while (strtok_r(str, " \t\n", &str) != NULL) while (strtok_r(str, " \t\n", &str) != NULL)
items[i][WORDS]++; items[i][WORDS]++;
} }
/* max-line-length */ /* chars */
if (mode_chars) {
str = strdup(buffer);
mblen = mbstowcs(NULL, str, 0);
if (mblen == (size_t)-1) {
perror("Erro ao converter multibyte");
exit(EXIT_FAILURE);
}
if (mblen > INT_MAX) {
fprintf(stderr, "Erro valor maior que INT_MAX!\n");
exit(EXIT_FAILURE);
}
items[i][CHARS] += (int)mblen;
}
/* max-line-lenght */
if (mode_mllen) { if (mode_mllen) {
str = strdup(buffer); str = strdup(buffer);
len = strlen(str); int len = strlen(str);
if (len > 0 && str[len-1] == '\n') if (len > 0 && str[len-1] == '\n')
str[len-1] = '\0'; str[len-1] = '\0';
len = strlen(str); mblen = mbstowcs(NULL, str, 0);
items[i][MLLEN] = items[i][MLLEN] > len ? items[i][MLLEN] : len; if (mblen == (size_t)-1) {
perror("Erro ao converter multibyte");
exit(EXIT_FAILURE);
}
if (mblen > INT_MAX) {
fprintf(stderr, "Erro valor maior que INT_MAX!\n");
exit(EXIT_FAILURE);
}
items[i][MLLEN] = items[i][MLLEN] > (int)mblen ? items[i][MLLEN] : (int)mblen;
} }
/* lines */ /* lines */
if (mode_lines) if (mode_lines)
items[i][LINES]++; items[i][LINES]++;
/* chars
if (mode_chars) */
} }
if (strcmp(list[i], "/dev/stdin") == 0) if (strcmp(list[i], "/dev/stdin") == 0)
list[i] = ""; list[i] = "";
items[TOTAL][LINES] += items[i][LINES]; items[TOTAL][LINES] += items[i][LINES];
items[TOTAL][WORDS] += items[i][WORDS]; items[TOTAL][WORDS] += items[i][WORDS];
items[TOTAL][BYTES] += items[i][BYTES]; items[TOTAL][BYTES] += items[i][BYTES];
items[TOTAL][CHARS] += items[i][CHARS];
fclose(stream); fclose(stream);
} }
for (int i = 1; i < count; i++) for (int i = 1; i < count; i++)