ptx.c readability

* src/ptx.c (copy_unescaped_string): Add braces around 80+-line
single-stmt while-loop body.

Signed-off-by: Jim Meyering <meyering@redhat.com>

diff --git a/src/ptx.c b/src/ptx.c
index 67b70c6..dafcbe2 100644 (file)
--- a/src/ptx.c
+++ b/src/ptx.c
@@ -1,5 +1,5 @@
 /* Permuted index for GNU, with keywords in their context.
-   Copyright (C) 1990, 1991, 1993, 1998-2007 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1991, 1993, 1998-2008 Free Software Foundation, Inc.
    François Pinard <pinard@iro.umontreal.ca>, 1988.
 
    This program is free software: you can redistribute it and/or modify
@@ -310,91 +310,93 @@ copy_unescaped_string (const char *string)
   cursor = result;
 
   while (*string)
-    if (*string == '\\')
-      {
-       string++;
-       switch (*string)
-         {
-         case 'x':             /* \xhhh escape, 3 chars maximum */
-           value = 0;
-           for (length = 0, string++;
-                length < 3 && isxdigit (to_uchar (*string));
-                length++, string++)
-             value = value * 16 + HEXTOBIN (*string);
-           if (length == 0)
-             {
-               *cursor++ = '\\';
-               *cursor++ = 'x';
-             }
-           else
+    {
+      if (*string == '\\')
+       {
+         string++;
+         switch (*string)
+           {
+           case 'x':           /* \xhhh escape, 3 chars maximum */
+             value = 0;
+             for (length = 0, string++;
+                  length < 3 && isxdigit (to_uchar (*string));
+                  length++, string++)
+               value = value * 16 + HEXTOBIN (*string);
+             if (length == 0)
+               {
+                 *cursor++ = '\\';
+                 *cursor++ = 'x';
+               }
+             else
+               *cursor++ = value;
+             break;
+
+           case '0':           /* \0ooo escape, 3 chars maximum */
+             value = 0;
+             for (length = 0, string++;
+                  length < 3 && ISODIGIT (*string);
+                  length++, string++)
+               value = value * 8 + OCTTOBIN (*string);
              *cursor++ = value;
-           break;
+             break;
 
-         case '0':             /* \0ooo escape, 3 chars maximum */
-           value = 0;
-           for (length = 0, string++;
-                length < 3 && ISODIGIT (*string);
-                length++, string++)
-             value = value * 8 + OCTTOBIN (*string);
-           *cursor++ = value;
-           break;
-
-         case 'a':             /* alert */
+           case 'a':           /* alert */
 #if __STDC__
-           *cursor++ = '\a';
+             *cursor++ = '\a';
 #else
-           *cursor++ = 7;
+             *cursor++ = 7;
 #endif
-           string++;
-           break;
-
-         case 'b':             /* backspace */
-           *cursor++ = '\b';
-           string++;
-           break;
+             string++;
+             break;
 
-         case 'c':             /* cancel the rest of the output */
-           while (*string)
+           case 'b':           /* backspace */
+             *cursor++ = '\b';
              string++;
-           break;
+             break;
 
-         case 'f':             /* form feed */
-           *cursor++ = '\f';
-           string++;
-           break;
+           case 'c':           /* cancel the rest of the output */
+             while (*string)
+               string++;
+             break;
 
-         case 'n':             /* new line */
-           *cursor++ = '\n';
-           string++;
-           break;
+           case 'f':           /* form feed */
+             *cursor++ = '\f';
+             string++;
+             break;
 
-         case 'r':             /* carriage return */
-           *cursor++ = '\r';
-           string++;
-           break;
+           case 'n':           /* new line */
+             *cursor++ = '\n';
+             string++;
+             break;
 
-         case 't':             /* horizontal tab */
-           *cursor++ = '\t';
-           string++;
-           break;
+           case 'r':           /* carriage return */
+             *cursor++ = '\r';
+             string++;
+             break;
+
+           case 't':           /* horizontal tab */
+             *cursor++ = '\t';
+             string++;
+             break;
 
-         case 'v':             /* vertical tab */
+           case 'v':           /* vertical tab */
 #if __STDC__
-           *cursor++ = '\v';
+             *cursor++ = '\v';
 #else
-           *cursor++ = 11;
+             *cursor++ = 11;
 #endif
-           string++;
-           break;
+             string++;
+             break;
 
-         default:
-           *cursor++ = '\\';
-           *cursor++ = *string++;
-           break;
-         }
-      }
-    else
-      *cursor++ = *string++;
+           default:
+             *cursor++ = '\\';
+             *cursor++ = *string++;
+             break;
+           }
+       }
+      else
+       *cursor++ = *string++;
+    }
 
   *cursor = '\0';
   return result;