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msvcrt: Move code to parse a literal string out of get_class(). 

unDName: Move the code to parse a literal string from get_class() to a
separate function. Add some error handling to the new function.
This commit is contained in:
Michael Stefaniuc 2006-02-20 11:17:41 +01:00 committed by Alexandre Julliard
parent 538d1a1233
commit e367ebbf19
1 changed files with 43 additions and 12 deletions
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55
dlls/msvcrt/undname.c
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@ -399,12 +399,44 @@ static const char* get_modified_type(struct parsed_symbol* sym, char modif)
return ret;
}
/******************************************************************
* 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@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_symbol* sym)
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_symbol* sym)
}
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;
}
}