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quote: provide sq_dequote_to_argv_array

This is similar to sq_dequote_to_argv, but more convenient
if you have an argv_array. It's tempting to just feed the
components of the argv_array to sq_dequote_to_argv instead,
but:

  1. It wouldn't maintain the NULL-termination invariant
     of argv_array.

  2. It doesn't match the memory ownership policy of
     argv_array (in which each component is free-able, not a
     pointer into a separate buffer).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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1 parent c1189ca commit 37e8161a04360d01edd0611135f5eae8e6a08224 @peff peff committed with gitster Sep 13, 2011
Showing with 28 additions and 3 deletions.
  1. +20 −3 quote.c
  2. +8 −0 quote.h
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23 quote.c
@@ -1,5 +1,6 @@
#include "cache.h"
#include "quote.h"
+#include "argv-array.h"
int quote_path_fully = 1;
@@ -120,7 +121,9 @@ char *sq_dequote(char *arg)
return sq_dequote_step(arg, NULL);
}
-int sq_dequote_to_argv(char *arg, const char ***argv, int *nr, int *alloc)
+static int sq_dequote_to_argv_internal(char *arg,
+ const char ***argv, int *nr, int *alloc,
+ struct argv_array *array)
{
char *next = arg;
@@ -130,13 +133,27 @@ int sq_dequote_to_argv(char *arg, const char ***argv, int *nr, int *alloc)
char *dequoted = sq_dequote_step(next, &next);
if (!dequoted)
return -1;
- ALLOC_GROW(*argv, *nr + 1, *alloc);
- (*argv)[(*nr)++] = dequoted;
+ if (argv) {
+ ALLOC_GROW(*argv, *nr + 1, *alloc);
+ (*argv)[(*nr)++] = dequoted;
+ }
+ if (array)
+ argv_array_push(array, dequoted);
} while (next);
return 0;
}
+int sq_dequote_to_argv(char *arg, const char ***argv, int *nr, int *alloc)
+{
+ return sq_dequote_to_argv_internal(arg, argv, nr, alloc, NULL);
+}
+
+int sq_dequote_to_argv_array(char *arg, struct argv_array *array)
+{
+ return sq_dequote_to_argv_internal(arg, NULL, NULL, NULL, array);
+}
+
/* 1 means: quote as octal
* 0 means: quote as octal if (quote_path_fully)
* -1 means: never quote
View
8 quote.h
@@ -45,6 +45,14 @@ extern char *sq_dequote(char *);
*/
extern int sq_dequote_to_argv(char *arg, const char ***argv, int *nr, int *alloc);
+/*
+ * Same as above, but store the unquoted strings in an argv_array. We will
+ * still modify arg in place, but unlike sq_dequote_to_argv, the argv_array
+ * will duplicate and take ownership of the strings.
+ */
+struct argv_array;
+extern int sq_dequote_to_argv_array(char *arg, struct argv_array *);
+
extern int unquote_c_style(struct strbuf *, const char *quoted, const char **endp);
extern size_t quote_c_style(const char *name, struct strbuf *, FILE *, int no_dq);
extern void quote_two_c_style(struct strbuf *, const char *, const char *, int);

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