git-svn: support -C<num> passing to git-diff-tree

[git.git] / quote.h

diff --git a/quote.h b/quote.h
index ea227bb..c1ab378 100644 (file)
--- a/quote.h
+++ b/quote.h
@@ -1,11 +1,13 @@
 #ifndef QUOTE_H
 #define QUOTE_H
 
+#include <stddef.h>
 #include <stdio.h>
 
 /* Help to copy the thing properly quoted for the shell safety.
- * any single quote is replaced with '\'', and the whole thing
- * is enclosed in a single quote pair.
+ * any single quote is replaced with '\'', any exclamation point
+ * is replaced with '\!', and the whole thing is enclosed in a
+ * single quote pair.
  *
  * For example, if you are passing the result to system() as an
  * argument:
@@ -20,14 +22,26 @@
  *
  * Note that the above examples leak memory!  Remember to free result from
  * sq_quote() in a real application.
+ *
+ * sq_quote_buf() writes to an existing buffer of specified size; it
+ * will return the number of characters that would have been written
+ * excluding the final null regardless of the buffer size.
  */
 
 extern char *sq_quote(const char *src);
+extern size_t sq_quote_buf(char *dst, size_t n, const char *src);
+
+/* This unwraps what sq_quote() produces in place, but returns
+ * NULL if the input does not look like what sq_quote would have
+ * produced.
+ */
+extern char *sq_dequote(char *);
 
 extern int quote_c_style(const char *name, char *outbuf, FILE *outfp,
                         int nodq);
 extern char *unquote_c_style(const char *quoted, const char **endp);
 
-extern void write_name_quoted(const char *prefix, const char *name,
-                             int quote, FILE *out);
+extern void write_name_quoted(const char *prefix, int prefix_len,
+                             const char *name, int quote, FILE *out);
+
 #endif