refactor

1 files changed, 0 insertions, 140 deletions

diff --git a/src/commands/cat.c b/src/commands/cat.c
deleted file mode 100644
index 0495fe3..0000000
--- a/src/commands/cat.c
+++ /dev/null
@@ -1,140 +0,0 @@
-#include "../command.h"
-
-#include <ctype.h>
-
-static struct {
-    bool number_lines;
-    bool number_non_empty;
-    bool change_non_print;
-    bool change_tabs;
-    bool end_lines_dollar;
-} flags;
-
-static bool printable(char c) {
-    switch (c) {
-        case '\n': return true;
-        case '\r': return true;
-        case '\b': return true;
-        case '\t': return true;
-        default: return isprint(c) == 0;
-    }
-}
-
-static void help(void) {
-    printf("Usage: cat [-nbvteA] [FILE]...\n\n");
-    printf("Print FILEs to stdout\n\n");
-    printf("\t-n	Number output lines\n");
-    printf("\t-b	Number nonempty lines\n");
-    printf("\t-v	Show nonprinting characters as ^x or M-x\n");
-    printf("\t-t	...and tabs as ^I\n");
-    printf("\t-e	...and end lines with $\n");
-    printf("\t-A	Same as -vte\n");
-}
-
-static void cat_file(FILE* file) {
-    char c;
-    size_t read;
-    
-    size_t line = 1;
-    bool empty = true;
-    bool newline = true;
-    
-    while ((read = fread(&c, 1, 1, file)) != 0) {
-        if (c == '\n') {
-            if (empty && flags.number_lines) {
-                printf("\t%ld ", line);
-            }
-            if (flags.end_lines_dollar) {
-                printf("$");
-            }
-            line++;
-            newline = true;
-            empty = true;
-            goto print;
-        } else {
-            empty = false;
-        }
-
-        if (!newline) {
-            goto print;
-        }
-
-        if (!empty && (flags.number_non_empty || flags.number_lines)) {
-            printf("\t%ld ", line);
-            newline = false;
-        }
-    print:
-        if (!flags.change_non_print || printable(c)) {
-            if (flags.change_tabs && c == '\t') {
-                fwrite("^I", 1, 2, stdout);
-            } else {
-                fwrite(&c, 1, 1, stdout);
-            }
-        } else {
-            c |= '@';
-            fwrite(&c, 1, 1, stdout);
-        }
-    }
-}
-
-static int short_arg(char c, char* next) {
-    UNUSED(next);
-    switch (c) {
-        case 'n':
-            flags.number_lines = true;
-            break;
-        case 'b':
-            flags.number_non_empty = true;
-            break;
-        case 'v':
-            flags.change_non_print = true;
-            break;
-        case 't':
-            flags.change_non_print = true;
-            flags.change_tabs = true;
-            break;
-        case 'e':
-            flags.change_non_print = true;
-            flags.end_lines_dollar = true;
-            break;
-        case 'A':
-            flags.change_non_print = true;
-            flags.change_tabs = true;
-            flags.end_lines_dollar = true;
-            break;
-        default:
-            return ARG_INVALID;
-    }
-    return ARG_UNUSED;
-}
-
-COMMAND(cat) {
-
-    int start;
-    int arg_len;
-    int i;
-
-    flags.number_lines = false;
-    flags.number_non_empty = false;
-    flags.change_non_print = false;
-    flags.change_tabs = false;
-    flags.end_lines_dollar = false;
-
-    start = parse_args(argc, argv, help, short_arg, NULL);
-
-    arg_len = argc - start;
-
-    if (arg_len < 1) {
-        cat_file(stdin);
-        return EXIT_SUCCESS;
-    }
-
-    for (i = start; i < argc; i++) {
-        FILE* in = get_file(argv[i], "r");
-        cat_file(in);
-        if (in != stdin)
-            fclose(in);
-    }
-
-    return EXIT_SUCCESS;
-}