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authorEric Andersen1999-10-28 16:06:25 +0000
committerEric Andersen1999-10-28 16:06:25 +0000
commit6b6b3f6ef2f44898a8bddfaae93cc4ef3aa79661 (patch)
treeac9548482088082aece2d2df1406c72339c77b6f /editors
parentc7c41d306b8e172a2fba432d3c4b9f97b9963816 (diff)
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-rw-r--r--editors/sed.c150
1 files changed, 150 insertions, 0 deletions
diff --git a/editors/sed.c b/editors/sed.c
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+/*
+ * Mini sed implementation for busybox
+ *
+ *
+ * Copyright (C) 1999 by Lineo, inc.
+ * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "internal.h"
+#include "regexp.h"
+#include <stdio.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <time.h>
+#include <ctype.h>
+
+static const char sed_usage[] =
+"sed [-n] [-e script] [file...]\n"
+"Allowed scripts come in two forms:\n"
+"'/regexp/[gp]'\n"
+"\tattempt to match regexp against the pattern space\n"
+"'s/regexp/replacement/[gp]'\n"
+"\tattempt to match regexp against the pattern space\n"
+"\tand if successful replaces the matched portion with replacement."
+"Options:\n"
+"-e\tadd the script to the commands to be executed\n"
+"-n\tsuppress automatic printing of pattern space\n\n"
+#if defined BB_REGEXP
+"This version of sed matches full regexps.\n";
+#else
+"This version of sed matches strings (not full regexps).\n";
+#endif
+
+
+static int replaceFlag = FALSE;
+static int noprintFlag = FALSE;
+
+
+extern int sed_main (int argc, char **argv)
+{
+ FILE *fp;
+ const char *needle;
+ const char *name;
+ const char *cp;
+ int tellName=TRUE;
+ int ignoreCase=FALSE;
+ int tellLine=FALSE;
+ long line;
+ char haystack[BUF_SIZE];
+
+ ignoreCase = FALSE;
+ tellLine = FALSE;
+
+ argc--;
+ argv++;
+ if (argc < 1) {
+ usage(grep_usage);
+ }
+
+ if (**argv == '-') {
+ argc--;
+ cp = *argv++;
+
+ while (*++cp)
+ switch (*cp) {
+ case 'n':
+ noprintFlag = TRUE;
+ break;
+ case 'e':
+ if (*(*argv)+1 != '\'' && **argv != '\"') {
+ if (--argc == 0)
+ usage( mkdir_usage);
+ ++argv;
+ if (*(*argv)+1 != '\'' && **argv != '\"') {
+ usage( mkdir_usage);
+ }
+ /* Find the specified modes */
+ mode = 0;
+ if ( parse_mode(*(++argv), &mode) == FALSE ) {
+ fprintf(stderr, "Unknown mode: %s\n", *argv);
+ exit( FALSE);
+ }
+ break;
+
+ default:
+ usage(grep_usage);
+ }
+ }
+
+ needle = *argv++;
+ argc--;
+
+ while (argc-- > 0) {
+ name = *argv++;
+
+ fp = fopen (name, "r");
+ if (fp == NULL) {
+ perror (name);
+ continue;
+ }
+
+ line = 0;
+
+ while (fgets (haystack, sizeof (haystack), fp)) {
+ line++;
+ cp = &haystack[strlen (haystack) - 1];
+
+ if (*cp != '\n')
+ fprintf (stderr, "%s: Line too long\n", name);
+
+ if (find_match(haystack, needle, ignoreCase) == TRUE) {
+ if (tellName==TRUE)
+ printf ("%s: ", name);
+
+ if (tellLine==TRUE)
+ printf ("%ld: ", line);
+
+ fputs (haystack, stdout);
+ }
+ }
+
+ if (ferror (fp))
+ perror (name);
+
+ fclose (fp);
+ }
+ exit( TRUE);
+}
+
+
+/* END CODE */
+
+