From 6f5d21170297f1b423913febe4a6b578c27de5f0 Mon Sep 17 00:00:00 2001
From: Anonymous <http://dis.4chan.org/prog/>
Date: Tue, 17 Jun 2008 23:57:05 -0700
Subject: [PATCH] Added a basic implementation of wc.

	new file:   wc.c
---
 coreutils/wc.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 coreutils/wc.c

diff --git a/coreutils/wc.c b/coreutils/wc.c
new file mode 100644
index 0000000..8efea7e
--- /dev/null
+++ b/coreutils/wc.c
@@ -0,0 +1,119 @@
+/* wc.c for Anonix.
+ * not quite POSIX yet; need to implement the -L flag.
+ */
+
+#include <ctype.h>
+#include <stdbool.h> /* fuck off, C99 rocks. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+typedef struct {
+	bool print_bytes, print_words, print_lines;
+} options;
+
+int print_info(FILE *file, options *opts, char *program_name, char *filename)
+{
+	int ret = EXIT_SUCCESS;
+
+	if(!file) {
+		fprintf(stderr, "%s: %s: No such file or directory\n",
+		        program_name, filename);
+		ret = EXIT_FAILURE;
+	}
+	/* collect file information. */
+	else {
+		size_t bytes = 0, lines = 0, words = 0;
+		int c = fgetc(file);
+		bool in_word = false;
+
+		while(c != EOF) {
+			bytes++;
+			if(c == '\n')
+				lines++;
+			if(!in_word && !isspace(c))
+				in_word = true;
+			else if(in_word && isspace(c)) {
+				words++;
+				in_word = false;
+			}
+			c = fgetc(file);
+		}
+
+		/* print file information. */
+		if(opts->print_lines)
+			printf("%zu ", lines);
+		if(opts->print_words)
+			printf("%zu ", words);
+		if(opts->print_bytes)
+			printf("%zu ", bytes);
+		printf("%s\n", filename);
+		fclose(file);
+	}
+
+	return ret;
+}
+
+int main(int argc, char *argv[])
+{
+	options opts;
+	bool default_options = true, found_file = false;
+	char *program_name = argv[0];
+	int option, i, ret = EXIT_SUCCESS;
+
+	opts.print_bytes = false;
+	opts.print_words = false;
+	opts.print_lines = false;
+
+	/* get short options. */
+	while((option = getopt(argc, argv, "cwlL")) != -1) {
+		default_options = false;
+		switch(option) {
+			case 'c':
+				opts.print_bytes = true;
+				break;
+			case 'w':
+				opts.print_words = true;
+				break;
+			case 'l':
+				opts.print_lines = true;
+				break;
+		}
+	}
+
+	/* get long options. */
+	for(i = 1; i < argc; ++i) {
+		if(!strcmp(argv[i], "--bytes") || !strcmp(argv[i], "--chars")) {
+			default_options = false;
+			opts.print_bytes = true;
+		}
+		else if(!strcmp(argv[i], "--words")) {
+			default_options = false;
+			opts.print_bytes = true;
+		}
+		else if(!strcmp(argv[i], "--lines")) {
+			default_options = false;
+			opts.print_bytes = true;
+		}
+	}
+
+	/* set default options if no options given. */
+	if(default_options)
+		opts.print_bytes = opts.print_words = opts.print_lines = true;
+
+	/* look for files. */
+	for(i = 1; i < argc; ++i) {
+		if(strncmp(argv[i], "--", 2) && strncmp(argv[i], "-", 1)) {
+			found_file = true;
+			ret |= print_info(fopen(argv[i], "rb"), &opts,
+			                  program_name, argv[i]);
+		}
+	}
+
+	/* use stdin if no file found. */
+	if(!found_file)
+		print_info(stdin, &opts, program_name, "");
+
+	return ret;
+}
-- 
2.11.4.GIT