From aa0765e11bdeba5c5abf745369a8430c8311d60c Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Fri, 22 Oct 1999 04:30:20 +0000
Subject: Added regexp support, fixed Changelog.

---
 findutils/find.c | 23 ++++++++++++-----------
 findutils/grep.c | 46 ++++++++++------------------------------------
 2 files changed, 22 insertions(+), 47 deletions(-)

(limited to 'findutils')

diff --git a/findutils/find.c b/findutils/find.c
index 1db332297..c154cf4e7 100644
--- a/findutils/find.c
+++ b/findutils/find.c
@@ -21,14 +21,15 @@
  *
  */
 
+#include "internal.h"
+#include "regexp.h"
 #include <stdio.h>
 #include <unistd.h>
 #include <dirent.h>
-#include "internal.h"
 
 
 static char* pattern=NULL;
-static char* directory=NULL;
+static char* directory=".";
 static int dereferenceFlag=FALSE;
 
 static const char find_usage[] = "find [path...] [expression]\n"
@@ -41,7 +42,7 @@ static int fileAction(const char *fileName, struct stat* statbuf)
 {
     if (pattern==NULL)
 	fprintf(stdout, "%s\n", fileName);
-    else if (match(fileName, pattern) == TRUE)
+    else if (find_match(fileName, pattern, TRUE) == TRUE)
 	fprintf(stdout, "%s\n", fileName);
     return( TRUE);
 }
@@ -53,7 +54,7 @@ static int dirAction(const char *fileName, struct stat* statbuf)
     
     if (pattern==NULL)
 	fprintf(stdout, "%s\n", fileName);
-    else if (match(fileName, pattern) == TRUE)
+    else if (find_match(fileName, pattern, TRUE) == TRUE)
 	fprintf(stdout, "%s\n", fileName);
 
     dir = opendir( fileName);
@@ -71,22 +72,18 @@ static int dirAction(const char *fileName, struct stat* statbuf)
 
 int find_main(int argc, char **argv)
 {
-    if (argc <= 1) {
-	dirAction( ".", NULL); 
-    }
-
     /* peel off the "find" */
     argc--;
     argv++;
 
-    if (**argv != '-') {
+    if ( argc > 0 && **argv != '-') {
 	directory=*argv;
 	argc--;
 	argv++;
     }
 
     /* Parse any options */
-    while (**argv == '-') {
+    while (argc > 0 && **argv == '-') {
 	int stopit=FALSE;
 	while (*++(*argv) && stopit==FALSE) switch (**argv) {
 	    case 'f':
@@ -120,6 +117,10 @@ int find_main(int argc, char **argv)
 	    break;
     }
 
-    dirAction( directory, NULL); 
+    if (recursiveAction(directory, TRUE, FALSE, FALSE,
+			   fileAction, fileAction) == FALSE) {
+	exit( FALSE);
+    }
+
     exit(TRUE);
 }
diff --git a/findutils/grep.c b/findutils/grep.c
index a495c62ae..44ca02834 100644
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -22,6 +22,7 @@
  */
 
 #include "internal.h"
+#include "regexp.h"
 #include <stdio.h>
 #include <dirent.h>
 #include <errno.h>
@@ -30,44 +31,17 @@
 #include <time.h>
 #include <ctype.h>
 
-
 static const char grep_usage[] =
 "grep [-ihn]... PATTERN [FILE]...\n"
 "Search for PATTERN in each FILE or standard input.\n\n"
 "\t-h\tsuppress the prefixing filename on output\n"
 "\t-i\tignore case distinctions\n"
 "\t-n\tprint line number with output lines\n\n"
+#if defined BB_REGEXP
+"This version of grep matches full regexps.\n";
+#else
 "This version of grep matches strings (not full regexps).\n";
-
-
-/*
- * See if the specified needle is found in the specified haystack.
- */
-static int search (const char *haystack, const char *needle, int ignoreCase)
-{
-
-    if (ignoreCase == FALSE) {
-	haystack = strstr (haystack, needle);
-	if (haystack == NULL)
-	    return FALSE;
-	return TRUE;
-    } else {
-	int i;
-	char needle1[BUF_SIZE];
-	char haystack1[BUF_SIZE];
-
-	strncpy( haystack1, haystack, sizeof(haystack1));
-	strncpy( needle1, needle, sizeof(needle1));
-	for( i=0; i<sizeof(haystack1) && haystack1[i]; i++)
-	    haystack1[i]=tolower( haystack1[i]);
-	for( i=0; i<sizeof(needle1) && needle1[i]; i++)
-	    needle1[i]=tolower( needle1[i]);
-	haystack = strstr (haystack1, needle1);
-	if (haystack == NULL)
-	    return FALSE;
-	return TRUE;
-    }
-}
+#endif
 
 
 extern int grep_main (int argc, char **argv)
@@ -80,7 +54,7 @@ extern int grep_main (int argc, char **argv)
     int ignoreCase=FALSE;
     int tellLine=FALSE;
     long line;
-    char buf[BUF_SIZE];
+    char haystack[BUF_SIZE];
 
     ignoreCase = FALSE;
     tellLine = FALSE;
@@ -128,21 +102,21 @@ extern int grep_main (int argc, char **argv)
 
 	line = 0;
 
-	while (fgets (buf, sizeof (buf), fp)) {
+	while (fgets (haystack, sizeof (haystack), fp)) {
 	    line++;
-	    cp = &buf[strlen (buf) - 1];
+	    cp = &haystack[strlen (haystack) - 1];
 
 	    if (*cp != '\n')
 		fprintf (stderr, "%s: Line too long\n", name);
 
-	    if (search (buf, needle, ignoreCase)==TRUE) {
+	    if (find_match(haystack, needle, ignoreCase) == TRUE) {
 		if (tellName==TRUE)
 		    printf ("%s: ", name);
 
 		if (tellLine==TRUE)
 		    printf ("%ld: ", line);
 
-		fputs (buf, stdout);
+		fputs (haystack, stdout);
 	    }
 	}
 
-- 
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