//向input字符串中插入to_insert串，位置为start
internal unsafe static gstring internal_insert(string input, string to_insert, int start)
{
if (input == null)
{
throw new ArgumentNullException("input");
}
if (to_insert == null)
{
throw new ArgumentNullException("to_insert");
}
if (start < 0 || start >= input.Length)
{
throw new ArgumentOutOfRangeException("start=" + start + " Length=" + input.Length);
}
if (to_insert.Length == 0)
{
return(get(input));
}
int new_len = input.Length + to_insert.Length;
gstring result = get(new_len);
internal_insert(result, input, to_insert, start);
return(result);
}
//获取特定长度gstring
internal static gstring get(int length)
{
if (g_current_block == null)
{
throw new InvalidOperationException("GString 操作必须在一个gstring_block块中。");
}
if (length <= 0)
{
throw new InvalidOperationException("错误参数 length: " + length);
}
gstring result;
Stack <gstring> stack;
//从缓存中取Stack
if (!g_cache.TryGetValue(length, out stack))
{
stack = new Stack <gstring>(INITIAL_STACK_CAPACITY);
for (int i = 0; i < INITIAL_STACK_CAPACITY; i++)
{
stack.Push(new gstring(length));
}
g_cache[length] = stack;
result = stack.Pop();
}
else
{
if (stack.Count == 0)
{
#if DBG
if (Log != null)
{
Log("Stack=0 Allocating new gstring Length=" + length);
}
#endif
result = new gstring(length);
}
else
{
result = stack.Pop();
#if DBG
if (log != null)
{
log("Popped Length=" + length + " Stack=" + stack.Count);
}
#endif
}
}
result._disposed = false;
g_current_block.push(result);//gstring推入块所在栈
return(result);
}
internal static gstring get(int length)
{
if (g_current_block == null)
{
throw new InvalidOperationException("Getting gstrings must be done in a gstring_block. Make sure you do a using(gstring.block())");
}
if (length <= 0)
{
throw new InvalidOperationException("Invalid length: " + length);
}
gstring result;
Stack <gstring> stack;
if (!g_cache.TryGetValue(length, out stack))
{
stack = new Stack <gstring>(INITIAL_STACK_CAPACITY);
for (int i = 0; i < INITIAL_STACK_CAPACITY; i++)
{
stack.Push(new gstring(length));
}
g_cache[length] = stack;
result = stack.Pop();
}
else
{
if (stack.Count == 0)
{
if (Log != null)
{
Log("Stack=0 Allocating new gstring Length=" + length);
}
result = new gstring(length);
}
else
{
result = stack.Pop();
#if DBG
if (log != null)
{
log("Popped Length=" + length + " Stack=" + stack.Count);
}
#endif
}
}
result._disposed = false;
g_current_block.push(result);
return(result);
}
//字符串拼接
internal unsafe static gstring internal_concat(string s1, string s2)
{
int total_length = s1.Length + s2.Length;
gstring result = get(total_length);
fixed(char *ptr_result = result._value)
{
fixed(char *ptr_s1 = s1)
{
fixed(char *ptr_s2 = s2)
{
memcpy(dst: ptr_result, src: ptr_s1, length: s1.Length, src_offset: 0);
memcpy(dst: ptr_result, src: ptr_s2, length: s2.Length, src_offset: s1.Length);
}
}
}
return(result);
}
//向字符串value中自start位置插入count长度的to_insertChar
internal unsafe static gstring internal_insert(string value, char to_insert, int start, int count)
{
// "HelloWorld" (to_insert=x, start=5, count=3) -> "HelloxxxWorld"
if (start < 0 || start >= value.Length)
{
throw new ArgumentOutOfRangeException("start=" + start + " Length=" + value.Length);
}
if (count < 0)
{
throw new ArgumentOutOfRangeException("count=" + count);
}
if (count == 0)
{
return(get(value));
}
int new_len = value.Length + count;
gstring result = get(new_len);
fixed(char *ptr_value = value)
{
fixed(char *ptr_result = result._value)
{
for (int i = 0, j = 0; i < new_len; i++)
{
if (i >= start && i < start + count)
{
ptr_result[i] = to_insert;
}
else
{
ptr_result[i] = ptr_value[j++];
}
}
}
}
return(result);
}
//剪切start起count长度的子串
public unsafe gstring Substring(int start, int count)
{
if (start < 0 || start >= Length)
{
throw new ArgumentOutOfRangeException("start");
}
if (count > Length)
{
throw new ArgumentOutOfRangeException("count");
}
gstring result = get(count);
fixed(char *src = this._value)
fixed(char *dst = result._value)
memcpy(dst, src + start, count);
return(result);
}
//移除string中自start起始count长度子串
internal unsafe static gstring internal_remove(string input, int start, int count)
{
if (start < 0 || start >= input.Length)
{
throw new ArgumentOutOfRangeException("start=" + start + " Length=" + input.Length);
}
if (count < 0 || start + count > input.Length)
{
throw new ArgumentOutOfRangeException("count=" + count + " start+count=" + (start + count) + " Length=" + input.Length);
}
if (count == 0)
{
return(input);
}
gstring result = get(input.Length - count);
internal_remove(result, input, start, count);
return(result);
}
//子字符替换
public unsafe gstring Replace(char old_value, char new_value)
{
gstring result = get(Length);
fixed(char *ptr_this = this._value)
{
fixed(char *ptr_result = result._value)
{
for (int i = 0; i < Length; i++)
{
if (ptr_this[i] == old_value)
{
ptr_result[i] = new_value;
}
else
{
ptr_result[i] = ptr_this[i];
}
}
}
}
return(result);
}
//获取格式化字符串
internal unsafe static gstring internal_format(string input, int num_args)
{
// "{0} {1}", "Hello", "World" ->
// "xxxxxxxxxxx"
// "Helloxxxxxx"
// "Hello xxxxx"
// "Hello World"
// "Player={0} Id={1}", "Jon", 10 ->
// "xxxxxxxxxxxxxxxx"
// "Player=xxxxxxxxx"
// "Player=Jonxxxxxx"
// "Player=Jon Id=xx"
// "Player=Jon Id=10"
if (input == null)
{
throw new ArgumentNullException("value");
}
//新字符串长度
int new_len = input.Length - 3 * num_args;
for (int i = 0; i < num_args; i++)
{
gstring arg = g_format_args[i];
new_len += arg.Length;
}
gstring result = get(new_len);
string res_value = result._value;
int brace_idx = -3;
for (int i = 0, j = 0, x = 0; x < num_args; x++)
{
string arg = g_format_args[x]._value;
brace_idx = internal_index_of(input, '{', brace_idx + 3);
if (brace_idx == -1)
{
throw new InvalidOperationException("没有发现大括号{ for argument " + arg);
}
if (brace_idx + 2 >= input.Length || input[brace_idx + 2] != '}')
{
throw new InvalidOperationException("没有发现大括号} for argument " + arg);
fixed(char *ptr_input = input)
{
fixed(char *ptr_result = res_value)
{
for (int k = 0; i < new_len;)
{
if (j < brace_idx)
{
ptr_result[i++] = ptr_input[j++];
}
else
{
ptr_result[i++] = arg[k++];
if (k == arg.Length)
{
j += 3;
break;
}
}
}
}
}
}
return(result);
}
public static gstring Concat(gstring s0, gstring s1)
{
return s0 + s1;
}
internal static gstring get(int length)
{
if (g_current_block == null)
throw new InvalidOperationException("Getting gstrings must be done in a gstring_block. Make sure you do a using(gstring.block())");
if (length <= 0)
throw new InvalidOperationException("Invalid length: " + length);
gstring result;
Stack<gstring> stack;
if (!g_cache.TryGetValue(length, out stack))
{
stack = new Stack<gstring>(INITIAL_STACK_CAPACITY);
for (int i = 0; i < INITIAL_STACK_CAPACITY; i++)
stack.Push(new gstring(length));
g_cache[length] = stack;
result = stack.Pop();
}
else
{
if (stack.Count == 0)
{
if (Log != null)
Log("Stack=0 Allocating new gstring Length=" + length);
result = new gstring(length);
}
else
{
result = stack.Pop();
#if DBG
if (log != null)
log("Popped Length=" + length + " Stack=" + stack.Count);
#endif
}
}
result._disposed = false;
g_current_block.push(result);
return result;
}
public static gstring Concat(gstring s0, gstring s1, gstring s2, gstring s3)
{
return s0 + s1 + s2 + s3;
}
public static gstring Format(string input, gstring arg0, gstring arg1, gstring arg2)
{
if (arg0 == null) throw new ArgumentNullException("arg0");
if (arg1 == null) throw new ArgumentNullException("arg1");
if (arg2 == null) throw new ArgumentNullException("arg2");
g_format_args[0] = arg0;
g_format_args[1] = arg1;
g_format_args[2] = arg2;
return internal_format(input, 3);
}
public static gstring Format(string input, gstring arg0, gstring arg1, gstring arg2, gstring arg3, gstring arg4, gstring arg5)
{
if (arg0 == null) throw new ArgumentNullException("arg0");
if (arg1 == null) throw new ArgumentNullException("arg1");
if (arg2 == null) throw new ArgumentNullException("arg2");
if (arg3 == null) throw new ArgumentNullException("arg3");
if (arg4 == null) throw new ArgumentNullException("arg4");
if (arg5 == null) throw new ArgumentNullException("arg5");
g_format_args[0] = arg0;
g_format_args[1] = arg1;
g_format_args[2] = arg2;
g_format_args[3] = arg3;
g_format_args[4] = arg4;
g_format_args[5] = arg5;
return internal_format(input, 6);
}
public static gstring Format(string input, gstring arg0, gstring arg1, gstring arg2, gstring arg3, gstring arg4, gstring arg5, gstring arg6, gstring arg7, gstring arg8)
{
if (arg0 == null) throw new ArgumentNullException("arg0");
if (arg1 == null) throw new ArgumentNullException("arg1");
if (arg2 == null) throw new ArgumentNullException("arg2");
if (arg3 == null) throw new ArgumentNullException("arg3");
if (arg4 == null) throw new ArgumentNullException("arg4");
if (arg5 == null) throw new ArgumentNullException("arg5");
if (arg6 == null) throw new ArgumentNullException("arg6");
if (arg7 == null) throw new ArgumentNullException("arg7");
if (arg8 == null) throw new ArgumentNullException("arg8");
g_format_args[0] = arg0;
g_format_args[1] = arg1;
g_format_args[2] = arg2;
g_format_args[3] = arg3;
g_format_args[4] = arg4;
g_format_args[5] = arg5;
g_format_args[6] = arg6;
g_format_args[7] = arg7;
g_format_args[8] = arg8;
return internal_format(input, 9);
}
public static gstring Concat(gstring s0, gstring s1, gstring s2, gstring s3, gstring s4, gstring s5, gstring s6, gstring s7, gstring s8, gstring s9)
{
return s0 + s1 + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9;
}
public static gstring Concat(gstring s0, gstring s1, gstring s2, gstring s3, gstring s4, gstring s5, gstring s6, gstring s7)
{
return s0 + s1 + s2 + s3 + s4 + s5 + s6 + s7;
}
public static gstring Concat(gstring s0, gstring s1, gstring s2, gstring s3, gstring s4, gstring s5)
{
return s0 + s1 + s2 + s3 + s4 + s5;
}
//字符串replace，原字符串，需替换子串，替换的新子串
internal unsafe static gstring internal_replace(string value, string old_value, string new_value)
{
// "Hello, World. There World" | World->Jon =
// "000000000000000000000" (len = orig - 2 * (world-jon) = orig - 4
// "Hello, 00000000000000"
// "Hello, Jon00000000000"
// "Hello, Jon. There 000"
// "Hello, Jon. There Jon"
// "Hello, World. There World" | World->Alexander =
// "000000000000000000000000000000000" (len = orig + 2 * (alexander-world) = orig + 8
// "Hello, 00000000000000000000000000"
// "Hello, Alexander00000000000000000"
// "Hello, Alexander. There 000000000"
// "Hello, Alexander. There Alexander"
if (old_value == null)
{
throw new ArgumentNullException("old_value");
}
if (new_value == null)
{
throw new ArgumentNullException("new_value");
}
int idx = internal_index_of(value, old_value);
if (idx == -1)
{
return(value);
}
g_finds.Clear();
g_finds.Add(idx);
// 记录所有需要替换的idx点
while (idx + old_value.Length < value.Length)
{
idx = internal_index_of(value, old_value, idx + old_value.Length);
if (idx == -1)
{
break;
}
g_finds.Add(idx);
}
// calc the right new total length
int new_len;
int dif = old_value.Length - new_value.Length;
if (dif > 0)
{
new_len = value.Length - (g_finds.Count * dif);
}
else
{
new_len = value.Length + (g_finds.Count * -dif);
}
gstring result = get(new_len);
fixed(char *ptr_this = value)
{
fixed(char *ptr_result = result._value)
{
for (int i = 0, x = 0, j = 0; i < new_len;)
{
if (x == g_finds.Count || g_finds[x] != j)
{
ptr_result[i++] = ptr_this[j++];
}
else
{
for (int n = 0; n < new_value.Length; n++)
{
ptr_result[i + n] = new_value[n];
}
x++;
i += new_value.Length;
j += old_value.Length;
}
}
}
}
return(result);
}
internal void push(gstring str)
{
stack.Push(str);
}
public static gstring Format(string input, gstring arg0)
{
if (arg0 == null) throw new ArgumentNullException("arg0");
g_format_args[0] = arg0;
return internal_format(input, 1);
}
public static gstring Concat(gstring s0, gstring s1, gstring s2)
{
return s0 + s1 + s2;
}
internal void push(gstring str)
{
stack.Push(str);
}
public gstring Concat(gstring value)
{
return internal_concat(this, value);
}
