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Add stdin support

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This commit is contained in:
Shav Kinderlehrer 2023-04-10 23:06:08 -04:00
parent 87f3769355
commit c040fe79ef
1 changed files with 16 additions and 17 deletions
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33
src/main.c
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@ -12,21 +12,17 @@
#define GREY "\x1b[90m" #define GREY "\x1b[90m"
#define RESET "\x1b[0m" #define RESET "\x1b[0m"
void run(char *filename) { void run(FILE *fp, char *filename) {
int tty = isatty(STDOUT_FILENO); int tty = isatty(STDOUT_FILENO);
FILE *fp = fopen(filename, "r+b");
if (fp == NULL) if (fp == NULL)
die("fopen"); die("fopen");
if (tty)
fprintf(stderr, "%s%s%s\r\n", INVERT_T, basename(filename), UINVERT_T);
struct filedata f; struct filedata f;
f = readfile(fp); f = readfile(fp);
fclose(fp); if (tty)
fprintf(stderr, "\r%s%s%s\r\n", INVERT_T, basename(filename), UINVERT_T);
int lcpad = intlen(f.lc); int lcpad = intlen(f.lc);
@ -42,7 +38,7 @@ void run(char *filename) {
char padding[padlen]; char padding[padlen];
memset(padding, ' ', padlen); memset(padding, ' ', padlen);
fprintf(stderr, "%s%s%d:%s ", GREY, padding, f.lc, RESET); fprintf(stderr, "\r%s%s%d:%s ", GREY, padding, f.lc, RESET);
} }
pc = c; pc = c;
@ -53,22 +49,25 @@ void run(char *filename) {
float rounded; float rounded;
char *format = formatBytes(f.len, &rounded); char *format = formatBytes(f.len, &rounded);
fprintf(stderr, "%s%.2f %s%s\r\n", INVERT_T, rounded, format, UINVERT_T); fprintf(stderr, "\r%s%.2f %s%s\r\n", INVERT_T, rounded, format, UINVERT_T);
} }
} }
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
if (argc < 2) { if (argc > 1) {
fprintf(stderr, "usage: %s <FILE/s>\n", argv[0]); for (int i = 1; i < argc; i++) { // start at one to offset argv[0]
exit(1); printf("%s\r\n", argv[i]);
}
for (int i = 1; i < argc; i++) { // start at one to offset argv[0] FILE *fp = fopen(argv[i], "rb");
run(argv[i]); run(fp, argv[i]);
fclose(fp);
if (i + 1 != argc) { if (i + 1 != argc) {
fprintf(stderr, "\r\n"); // separate concurrent files fprintf(stderr, "\r\n"); // separate concurrent files
}
} }
} else {
run(stdin, "stdin"); // for piped-input or repl-like behavior
} }
return 0; return 0;