===================================================================
RCS file: /home/cvs/OpenXM/src/util/oxgreph.c,v
retrieving revision 1.2
retrieving revision 1.5
diff -u -p -r1.2 -r1.5
--- OpenXM/src/util/oxgreph.c	2006/03/04 10:43:38	1.2
+++ OpenXM/src/util/oxgreph.c	2020/10/03 08:24:14	1.5
@@ -1,4 +1,4 @@
-/* $OpenXM: OpenXM/src/util/oxgreph.c,v 1.1 2006/03/04 07:48:12 takayama Exp $ */
+/* $OpenXM: OpenXM/src/util/oxgreph.c,v 1.4 2009/02/22 17:30:03 ohara Exp $ */
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -11,15 +11,18 @@
    It greps files and outputs an html file to browse the files.
    Keyword should be given in euc or utf-8 depending on the coding system of the files. 
    It does not add meta section  of html file.
+   Locale must be "C" to use this program or use -f option to read keyword.
 
    Example:
+   export LC_ALL="C"
    s.txt contains "insubunkai"
-   oxgreph --sjis `cat s.txt` $OpenXM_HOME/doc/cfep/html-ja_JP.sjis/html-jp/*.html >t.html
+   oxgreph  "`nkf -w s.txt`" $OpenXM_HOME/doc/cfep/html-ja_JP.utf8/html-ja/*.html >t.html
+   oxgreph --sjis "`nkf -s s.txt`" $OpenXM_HOME/doc/cfep/html-ja_JP.sjis/html-ja/*.html >t.html
 */
 
 int Sjis = 0;
 int LeaveTag = 0;
-main(int argc, char *argv[]) {
+int main(int argc, char *argv[]) {
   int i,m,pid,n, cpos,start;
   char *com;
   char workf[256];
@@ -27,8 +30,17 @@ main(int argc, char *argv[]) {
   char s[SSIZE];
   char ss[SSIZE*2];
   FILE *fp;
+  int r;
   m = 256;
   pid = getpid();
+  if (argc < 2) {
+	fprintf(stderr,"oxgreph [--leaveTag] args_to_grep \n");
+	fprintf(stderr,"Note: LC_ALL should be C on some systems or use -f to give the pattern.\n");
+	fprintf(stderr,"Example 1:  oxgreph \"`nkf -w s.txt`\" $OpenXM_HOME/doc/cfep/html-ja_JP.utf8/*.html >t.html\n");
+	fprintf(stderr,"Example 2:  oxgreph -f s.txt $OpenXM_HOME/doc/cfep/html-ja_JP.utf8/*.html >t.html\n");
+	fprintf(stderr,"  The keyword is stored in s.txt.\n");
+	exit(0);
+  }
   for (i=1; i<argc; i++) {
     m += strlen(argv[i])+1;
   }
@@ -45,7 +57,7 @@ main(int argc, char *argv[]) {
   }
   sprintf(workf,"/tmp/tmp-oxgreph-%d.txt",pid);
   sprintf(&(com[strlen(com)]),">%s",workf);
-  system(com);
+  r=system(com);
 
   printf("<ol>\n");
   fp = fopen(workf,"r");
@@ -82,5 +94,6 @@ main(int argc, char *argv[]) {
   }
   printf("</ol>\n");
   sprintf(com,"rm -f %s",workf);
-  system(com);
+  r=system(com);
+  return 0;
 }