transfer.fsckobjects: unify fetch/receive.fsckobjects

[git.git] / quote.c

diff --git a/quote.c b/quote.c
index 6a520855d6c418ecb1384ef9571b122b134af1af..fc93435727db3b0634c390965258200c61d8b59b 100644 (file)
--- a/quote.c
+++ b/quote.c
@@ -72,7 +72,7 @@ void sq_quote_argv(struct strbuf *dst, const char** argv, size_t maxlen)
        }
 }
 
-char *sq_dequote(char *arg)
+static char *sq_dequote_step(char *arg, char **next)
 {
        char *dst = arg;
        char *src = arg;
@@ -92,6 +92,8 @@ char *sq_dequote(char *arg)
                switch (*++src) {
                case '\0':
                        *dst = 0;
+                       if (next)
+                               *next = NULL;
                        return arg;
                case '\\':
                        c = *++src;
@@ -101,11 +103,40 @@ char *sq_dequote(char *arg)
                        }
                /* Fallthrough */
                default:
-                       return NULL;
+                       if (!next || !isspace(*src))
+                               return NULL;
+                       do {
+                               c = *++src;
+                       } while (isspace(c));
+                       *dst = 0;
+                       *next = src;
+                       return arg;
                }
        }
 }
 
+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)
+{
+       char *next = arg;
+
+       if (!*arg)
+               return 0;
+       do {
+               char *dequoted = sq_dequote_step(next, &next);
+               if (!dequoted)
+                       return -1;
+               ALLOC_GROW(*argv, *nr + 1, *alloc);
+               (*argv)[(*nr)++] = dequoted;
+       } while (next);
+
+       return 0;
+}
+
 /* 1 means: quote as octal
  * 0 means: quote as octal if (quote_path_fully)
  * -1 means: never quote
@@ -182,7 +213,7 @@ static size_t quote_c_style_counted(const char *name, ssize_t maxlen,
                int ch;
 
                len = next_quote_pos(p, maxlen);
-               if (len == maxlen || !p[len])
+               if (len == maxlen || (maxlen < 0 && !p[len]))
                        break;
 
                if (!no_dq && p == name)
@@ -192,6 +223,8 @@ static size_t quote_c_style_counted(const char *name, ssize_t maxlen,
                EMIT('\\');
                p += len;
                ch = (unsigned char)*p++;
+               if (maxlen >= 0)
+                       maxlen -= len + 1;
                if (sq_lookup[ch] >= ' ') {
                        EMIT(sq_lookup[ch]);
                } else {
@@ -241,8 +274,8 @@ void write_name_quoted(const char *name, FILE *fp, int terminator)
        fputc(terminator, fp);
 }
 
-extern void write_name_quotedpfx(const char *pfx, size_t pfxlen,
-                                 const char *name, FILE *fp, int terminator)
+void write_name_quotedpfx(const char *pfx, size_t pfxlen,
+                         const char *name, FILE *fp, int terminator)
 {
        int needquote = 0;