4898794edd81be5285ea6e544acbedeaeb31bf78
max
  Tue Nov 23 08:10:57 2021 -0800
Fixing pointers to README file for license in all source code files. refs #27614

diff --git src/utils/subChar/subChar.c src/utils/subChar/subChar.c
index 354ed2c..bfde70f 100644
--- src/utils/subChar/subChar.c
+++ src/utils/subChar/subChar.c
@@ -1,104 +1,104 @@
 /* subChar - Substitute one character for another throughout a file.. */
 
 /* Copyright (C) 2011 The Regents of the University of California 
- * See README in this or parent directory for licensing information. */
+ * See kent/LICENSE or http://genome.ucsc.edu/license/ for licensing information. */
 #include "common.h"
 #include "obscure.h"
 
 
 void usage()
 /* Explain usage and exit. */
 {
 errAbort(
   "subChar - Substitute one character for another throughout a file.\n"
   "usage:\n"
   "   subChar oldChar newChar file(s)\n"
   "oldChar and newChar can either be single letter literal characters,\n"
   "or two digit hexadecimal ascii codes");
 }
 
 int unhex(char *s)
 /* Return hex val of s. */
 {
 int acc = 0;
 char c;
 
 tolowers(s);
 while ((c = *s++) != 0)
     {
     acc <<= 4;
     if (c >= '0' && c <= '9')
        acc += c - '0';
     else if (c >= 'a' && c <= 'f')
        acc += c + 10 - 'a';
     else
        errAbort("Expecting hexadecimal character got %s", s);
     }
 return acc;
 }
 
 char charVal(char *s)
 /* Return hexadecimal or literal decoding of string into char. */
 {
 int len = strlen(s);
 if (len == 1)
    return s[0];
 else if (len == 2)
    return unhex(s);
 else
    {
    usage();
    return 0;
    }
 }
 
 void subCharsInFile(char old, char new, char *fileName)
 /* Substitute new for old throughout file. */
 {
 int subCount = 0;
 size_t fileSize;
 int i;
 char *buf;
 
 readInGulp(fileName, &buf, &fileSize);
 for (i=0; i<fileSize; ++i)
     {
     if (buf[i] == old)
        {
        buf[i] = new;
        ++subCount;
        }
     }
 if (subCount > 0)
     {
     FILE *f = mustOpen(fileName, "w");
     printf("Substituting %x for %x %d times in %s\n",
     	new, old, subCount, fileName);
     mustWrite(f, buf, fileSize);
     fclose(f);
     }
 freez(&buf);
 }
 
 void subChars(char *oldChar, char *newChar, int fileCount, char *fileNames[])
 /* subChar - Substitute one character for another throughout a file.. */
 {
 char old = charVal(oldChar), new = charVal(newChar);
 int i;
 char *fileName;
 
 for (i=0; i<fileCount; ++i)
     {
     fileName = fileNames[i];
     subCharsInFile(old, new, fileName);
     }
 }
 
 int main(int argc, char *argv[])
 /* Process command line. */
 {
 if (argc < 4)
     usage();
 subChars(argv[1], argv[2], argc-3, argv+3);
 return 0;
 }