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at:tutorial:basic [2007/04/04 09:18] – * elisagat:tutorial:basic [2007/04/04 11:02] elisag
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 ==== Tables ==== ==== Tables ====
  
-As in Pico, indexed tables represent what other languages call arrays or lists. Tables indexes range from 1 to the size of the table. As variables, one can define, assign and refer to a table. Table definition is also made  with the keyword **def** in the following form:+As in Pico, indexed tables represent what other languages call arrays or lists. Tables are unidimensional and their indexes range from 1 to the size of the table. As variables, one can define, assign and refer to a table. Table definition is also made  with the keyword **def** in the following form:
 <code> <code>
 def t[ <size> ] { <expression> } def t[ <size> ] { <expression> }
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 >def z := 0 >def z := 0
 >>0 >>0
->def t[5] { z := z + 1 }+>def table[5] { z := z + 1 }
 >>[1, 2, 3, 4, 5] >>[1, 2, 3, 4, 5]
 </code> </code>
-Table entries can also contain another tables. -> TOADD_1+Although there is no special constructor for definition of multidimensional tables, a table entry can contain another table. This is internally stored as a unidimensional table whose entries are other tables. 
 + 
 +<code> 
 +>def vocals := ["a", "e", "i", "o", "u"
 +>>["a", "e", "i", "o", "u"
 +>table[3] := vocals 
 +>>[1, 2, ["a", "e", "i", "o", "u"], 4, 5] 
 +>table[3][2] 
 +>>"e" 
 +</code> 
 + 
 +As shown in the definition of the varible "vocals", evaluating a series of comma-separated abstract grammar values between square brackets (aka a tabulation) results in a table. 
 + 
 +<code> 
 +>[ 1, table, "ambientTalk"
 +>>[1, [1, 2, ["a", "e", "i", "o", "u"], 4, 5], "ambientTalk"
 +</code>
  
 ==== Functions ==== ==== Functions ====
at/tutorial/basic.txt · Last modified: 2020/02/09 22:05 by elisag