[unDName 2/5]: Move code to parse a literal string out of
get_class()
Michael Stefaniuc
mstefani at redhat.de
Sat Feb 18 12:40:27 CST 2006
Move the code to parse a literal string from get_class() to a separate
function. Add some error handling to the new function.
---
dlls/msvcrt/undname.c | 55 ++++++++++++++++++++++++++++++++++++++-----------
1 files changed, 43 insertions(+), 12 deletions(-)
a7f99c8efd40c4d5c55031ff43b14158a9f1c91e
diff --git a/dlls/msvcrt/undname.c b/dlls/msvcrt/undname.c
index 4318ca8..f5e3ecd 100644
--- a/dlls/msvcrt/undname.c
+++ b/dlls/msvcrt/undname.c
@@ -400,11 +400,43 @@ static const char* get_modified_type(str
}
/******************************************************************
+ * get_literal_string
+ * Gets the literal name from the current position in the mangled
+ * symbol to the first '@' character. It pushes the parsed name to
+ * the symbol names stack and returns a pointer to it or NULL in
+ * case of an error.
+ */
+static char* get_literal_string(struct parsed_symbol* sym)
+{
+ const char *ptr = sym->current;
+
+ do {
+ if (!((*sym->current >= 'A' && *sym->current <= 'Z') ||
+ (*sym->current >= 'a' && *sym->current <= 'z') ||
+ (*sym->current >= '0' && *sym->current <= '9') ||
+ *sym->current == '_' || *sym->current == '$')) {
+ TRACE("Failed at '%c' in %s\n", *sym->current, ptr);
+ return NULL;
+ }
+ } while (*++sym->current != '@');
+ sym->current++;
+ str_array_push(sym, ptr, sym->current - 1 - ptr, &sym->stack);
+
+ return str_array_get_ref(&sym->stack, sym->stack.num - sym->stack.start - 1);
+}
+
+/******************************************************************
* get_class
- * Parses class as a list of parent-classes, separated by '@', terminated by '@@'
- * and stores the result in 'a' array. Each parent-classes, as well as the inner
- * element (either field/method name or class name), are stored as allocated
- * strings in the array.
+ * Parses class as a list of parent-classes, terminated by '@' and stores the
+ * result in 'a' array. Each parent-classes, as well as the inner element
+ * (either field/method name or class name), are represented in the mangled
+ * name by a literal name ([a-zA-Z0-9_]+ terminated by '@') or a back reference
+ * ([0-9]) or a name with template arguments ('?$' literal name followed by the
+ * template argument list). The class name components appear in the reverse
+ * order in the mangled name, e.g aaa at bbb@ccc@@ will be demangled to
+ * ccc::bbb::aaa
+ * For each of this class name componets a string will be allocated in the
+ * array.
*/
static BOOL get_class(struct parsed_symbol* sym)
{
@@ -426,20 +458,20 @@ static BOOL get_class(struct parsed_symb
case '?':
if (*++sym->current == '$')
{
- const char* name = ++sym->current;
+ const char* name;
char* full = NULL;
char* args = NULL;
unsigned num_mark = sym->stack.num;
unsigned start_mark = sym->stack.start;
- while (*sym->current++ != '@');
-
+ sym->current++;
sym->stack.start = sym->stack.num;
- str_array_push(sym, name, sym->current - name -1, &sym->stack);
+ if (!(name = get_literal_string(sym)))
+ return FALSE;
args = get_args(sym, NULL, FALSE, '<', '>');
if (args != NULL)
{
- full = str_printf(sym, "%s%s", sym->stack.elts[num_mark], args);
+ full = str_printf(sym, "%s%s", name, args);
}
if (!full) return FALSE;
sym->stack.elts[num_mark] = full;
@@ -448,9 +480,8 @@ static BOOL get_class(struct parsed_symb
}
break;
default:
- ptr = sym->current;
- while (*sym->current++ != '@');
- str_array_push(sym, ptr, sym->current - 1 - ptr, &sym->stack);
+ if (!get_literal_string(sym))
+ return FALSE;
break;
}
}
--
1.2.1
--
Michael Stefaniuc Tel.: +49-711-96437-199
Sr. Network Engineer Fax.: +49-711-96437-111
Red Hat GmbH Email: mstefani at redhat.com
Hauptstaetterstr. 58 http://www.redhat.de/
D-70178 Stuttgart
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