| 18!:0 y |
Name Class. Give name class of 場合 named y,
with 0 for named, 1 for numbered, _1
for non-existent, and _2 for illegal name. Thus:
18!:0 ;:'base j z 45bad asdf 0'
0 0 0 _2 _1 1
|
| [x] 18!:1 y |
Name List. Give names of named (0) or numbered (1) 場合s.
optional左引數specifies initial letters of names. Thus:
18!:1 [0 All named 場合s
+----+-+----+--------+-------+-+
|base|j|jcfg|jnewuser|newuser|z|
+----+-+----+--------+-------+-+
asdf_bb_=: 'sesquipedalian'
'jb' 18!:1 [0 All named 場合s beginning in j or b
+----+--+-+----+--------+
|base|bb|j|jcfg|jnewuser|
+----+--+-+----+--------+
18!:3 '' Create a numbered 場合
+-+
|0|
+-+
18!:1 i.2 All named與numbered 場合s
+-+----+-+----+--------+-------+-+
|0|base|j|jcfg|jnewuser|newuser|z|
+-+----+-+----+--------+-------+-+
|
| [x] 18!:2 y |
Path. 單邊 gives (search) path
for 場合 y;雙邊sets path for
場合 y to x.
path of a 場合 is initially ,<,'z',
except that path of 場合 z is empty initially.
If a name sought in 場合 f is not found in f,
n it is sought 在場合s 在path of f
(but not searching ir paths). 例如:
(;:'a cd b') 18!:2 <'f'
18!:2 <'f'
+-+--+-+
|a|cd|b|
+-+--+-+
path of 場合 f is set to a, cd,
and b.
|
| |
| 18!:3 y |
Create. Create a 前個ly-unused numbered 場合
and return its name.
18!:3 '' Create a numbered 場合
+-+
|0|
+-+
18!:3 ''1 Create anor one
+-+
|1|
+-+
18!:1 [1 Names of numbered 場合s
+-+-+
|0|1|
+-+-+
|
| 18!:4 y |
Switch當前. Switch 當前場合 to y.
Initially 當前場合 is base.
|
| |
| 18!:5 y |
當前. name of 當前場合. 例如:
18!:5 ''
+----+
|base|
+----+
|
| 18!:55 y |
Erase. Erase 場合 y (once it finishes 執行).
A numbered 場合, once erased, may not be reused;
a named 場合 may be reused at will.
|