1 files changed, 119 insertions, 132 deletions

diff --git a/grep.c b/grep.c
index a07feda..11198b8 100644
--- a/grep.c
+++ b/grep.c
@@ -23,187 +23,174 @@
 
 
 const char grep_usage[] =
-"Search the input file(s) for lines matching the given pattern.\n"
-"\tI search stdin if no files are given.\n"
-"\tI can't grok full regular expressions.\n"
-"usage: grep [in] PATTERN [FILES]...\n"
-"\ti=ignore case, n=list line numbers\n";
+    "Search the input file(s) for lines matching the given pattern.\n"
+    "\tI search stdin if no files are given.\n"
+    "\tI can't grok full regular expressions.\n"
+    "usage: grep [in] PATTERN [FILES]...\n"
+    "\ti=ignore case, n=list line numbers\n";
 
 
 
-static	BOOL	search
-	(const char * string, const char * word, BOOL ignoreCase);
+static BOOL search (const char *string, const char *word, BOOL ignoreCase);
 
 
-extern int 
-grep_main(int argc, char ** argv)
+extern int grep_main (int argc, char **argv)
 {
-	FILE *		fp;
-	const char *	word;
-	const char *	name;
-	const char *	cp;
-	BOOL		tellName;
-	BOOL		ignoreCase;
-	BOOL		tellLine;
-	long		line;
-	char		buf[BUF_SIZE];
-
-	ignoreCase = FALSE;
-	tellLine = FALSE;
-
+    FILE *fp;
+    const char *word;
+    const char *name;
+    const char *cp;
+    BOOL tellName;
+    BOOL ignoreCase;
+    BOOL tellLine;
+    long line;
+    char buf[BUF_SIZE];
+
+    ignoreCase = FALSE;
+    tellLine = FALSE;
+
+    argc--;
+    argv++;
+    if (argc < 1) {
+	fprintf (stderr, "%s", grep_usage);
+	return 1;
+    }
+
+    if (**argv == '-') {
 	argc--;
-	argv++;
-	if (argc < 1)
-	{
-		fprintf(stderr, "%s", grep_usage);
-		return 1;
-	}
+	cp = *argv++;
 
-	if (**argv == '-')
-	{
-		argc--;
-		cp = *argv++;
-
-		while (*++cp) switch (*cp)
-		{
-			case 'i':
-				ignoreCase = TRUE;
-				break;
-
-			case 'n':
-				tellLine = TRUE;
-				break;
-
-			default:
-				fprintf(stderr, "Unknown option\n");
-				return 1;
-		}
-	}
+	while (*++cp)
+	    switch (*cp) {
+	    case 'i':
+		ignoreCase = TRUE;
+		break;
 
-	word = *argv++;
-	argc--;
+	    case 'n':
+		tellLine = TRUE;
+		break;
 
-	tellName = (argc > 1);
+	    default:
+		fprintf (stderr, "Unknown option\n");
+		return 1;
+	    }
+    }
 
-	while (argc-- > 0)
-	{
-		name = *argv++;
+    word = *argv++;
+    argc--;
 
-		fp = fopen(name, "r");
+    tellName = (argc > 1);
 
-		if (fp == NULL)
-		{
-			perror(name);
+    while (argc-- > 0) {
+	name = *argv++;
 
-			continue;
-		}
+	fp = fopen (name, "r");
 
-		line = 0;
+	if (fp == NULL) {
+	    perror (name);
 
-		while (fgets(buf, sizeof(buf), fp))
-		{
-			line++;
+	    continue;
+	}
 
-			cp = &buf[strlen(buf) - 1];
+	line = 0;
 
-			if (*cp != '\n')
-				fprintf(stderr, "%s: Line too long\n", name);
+	while (fgets (buf, sizeof (buf), fp)) {
+	    line++;
 
-			if (search(buf, word, ignoreCase))
-			{
-				if (tellName)
-					printf("%s: ", name);
+	    cp = &buf[strlen (buf) - 1];
 
-				if (tellLine)
-					printf("%ld: ", line);
+	    if (*cp != '\n')
+		fprintf (stderr, "%s: Line too long\n", name);
 
-				fputs(buf, stdout);
-			}
-		}
+	    if (search (buf, word, ignoreCase)) {
+		if (tellName)
+		    printf ("%s: ", name);
 
-		if (ferror(fp))
-			perror(name);
+		if (tellLine)
+		    printf ("%ld: ", line);
 
-		fclose(fp);
+		fputs (buf, stdout);
+	    }
 	}
-	return 0;
+
+	if (ferror (fp))
+	    perror (name);
+
+	fclose (fp);
+    }
+    return 0;
 }
 
 
 /*
  * See if the specified word is found in the specified string.
  */
-static BOOL
-search(const char * string, const char * word, BOOL ignoreCase)
+static BOOL search (const char *string, const char *word, BOOL ignoreCase)
 {
-	const char *	cp1;
-	const char *	cp2;
-	int		len;
-	int		lowFirst;
-	int		ch1;
-	int		ch2;
+    const char *cp1;
+    const char *cp2;
+    int len;
+    int lowFirst;
+    int ch1;
+    int ch2;
 
-	len = strlen(word);
+    len = strlen (word);
 
-	if (!ignoreCase)
-	{
-		while (TRUE)
-		{
-			string = strchr(string, word[0]);
+    if (!ignoreCase) {
+	while (TRUE) {
+	    string = strchr (string, word[0]);
 
-			if (string == NULL)
-				return FALSE;
+	    if (string == NULL)
+		return FALSE;
 
-			if (memcmp(string, word, len) == 0)
-				return TRUE;
+	    if (memcmp (string, word, len) == 0)
+		return TRUE;
 
-			string++;
-		}
+	    string++;
 	}
+    }
 
-	/*
-	 * Here if we need to check case independence.
-	 * Do the search by lower casing both strings.
-	 */
-	lowFirst = *word;
+    /* 
+     * Here if we need to check case independence.
+     * Do the search by lower casing both strings.
+     */
+    lowFirst = *word;
 
-	if (isupper(lowFirst))
-		lowFirst = tolower(lowFirst);
+    if (isupper (lowFirst))
+	lowFirst = tolower (lowFirst);
 
-	while (TRUE)
-	{
-		while (*string && (*string != lowFirst) &&
-			(!isupper(*string) || (tolower(*string) != lowFirst)))
-		{
-			string++;
-		}
-
-		if (*string == '\0')
-			return FALSE;
+    while (TRUE) {
+	while (*string && (*string != lowFirst) &&
+	       (!isupper (*string) || (tolower (*string) != lowFirst))) {
+	    string++;
+	}
 
-		cp1 = string;
-		cp2 = word;
+	if (*string == '\0')
+	    return FALSE;
 
-		do
-		{
-			if (*cp2 == '\0')
-				return TRUE;
+	cp1 = string;
+	cp2 = word;
 
-			ch1 = *cp1++;
+	do {
+	    if (*cp2 == '\0')
+		return TRUE;
 
-			if (isupper(ch1))
-				ch1 = tolower(ch1);
+	    ch1 = *cp1++;
 
-			ch2 = *cp2++;
+	    if (isupper (ch1))
+		ch1 = tolower (ch1);
 
-			if (isupper(ch2))
-				ch2 = tolower(ch2);
+	    ch2 = *cp2++;
 
-		}
-		while (ch1 == ch2);
+	    if (isupper (ch2))
+		ch2 = tolower (ch2);
 
-		string++;
 	}
+	while (ch1 == ch2);
+
+	string++;
+    }
+    return (TRUE);
 }
 
 #endif