Compiler/Sample programs: Difference between revisions
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__TOC__
=={{header|Hello
{| class="wikitable"
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|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
/*
Hello world
*/
print("Hello, World!\n");
</syntaxhighlight>
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|-
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<syntaxhighlight lang="c">
/*
Show Ident and Integers
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phoenix_number = 142857;
print(phoenix_number, "\n");
</syntaxhighlight>
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|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
/*
All lexical tokens - not syntactically correct, but that will
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/* character literal */ '\\'
/* character literal */ ' '
</syntaxhighlight>
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|-
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<syntaxhighlight lang="c">
/*** test printing, embedded \n and comments with lots of '*' ***/
print(42);
print("\nHello World\nGood Bye\nok\n");
print("Print a slash n - \\n.\n");
</syntaxhighlight>
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<syntaxhighlight lang="c">
count = 1;
while (count < 10) {
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count = count + 1;
}
</syntaxhighlight>
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count is: 8
count is: 9
</pre>
=={{header|100_doors}}==
{| class="wikitable"
|-
! Input to lex
! Output from lex, input to parse
! Output from parse
! Output from gen, input to VM
|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
/* 100 Doors */
i = 1;
while (i * i <= 100) {
print("door ", i * i, " is open\n");
i = i + 1;
}
</syntaxhighlight>
| style="vertical-align:top" |
<b><pre>
lex ..\100doors.t
2 1 Identifier i
2 3 Op_assign
2 5 Integer 1
2 6 Semicolon
3 1 Keyword_while
3 7 LeftParen
3 8 Identifier i
3 10 Op_multiply
3 12 Identifier i
3 14 Op_lessequal
3 17 Integer 100
3 20 RightParen
3 22 LeftBrace
4 5 Keyword_print
4 10 LeftParen
4 11 String "door "
4 18 Comma
4 20 Identifier i
4 22 Op_multiply
4 24 Identifier i
4 25 Comma
4 27 String " is open\n"
4 39 RightParen
4 40 Semicolon
5 5 Identifier i
5 7 Op_assign
5 9 Identifier i
5 11 Op_add
5 13 Integer 1
5 14 Semicolon
6 1 RightBrace
7 1 End_of_input
</pre></b>
| style="vertical-align:top" |
<b><pre>
lex ..\100doors.t | parse
Sequence
Sequence
;
Assign
Identifier i
Integer 1
While
LessEqual
Multiply
Identifier i
Identifier i
Integer 100
Sequence
Sequence
;
Sequence
Sequence
Sequence
;
Prts
String "door "
;
Prti
Multiply
Identifier i
Identifier i
;
Prts
String " is open\n"
;
Assign
Identifier i
Add
Identifier i
Integer 1
</pre></b>
| style="vertical-align:top" |
<b><pre>
lex ..\100doors.t | parse | gen
Datasize: 1 Strings: 2
"door "
" is open\n"
0 push 1
5 store [0]
10 fetch [0]
15 fetch [0]
20 mul
21 push 100
26 le
27 jz (49) 77
32 push 0
37 prts
38 fetch [0]
43 fetch [0]
48 mul
49 prti
50 push 1
55 prts
56 fetch [0]
61 push 1
66 add
67 store [0]
72 jmp (-63) 10
77 halt
</pre></b>
|}
;And the output is:
<pre>
lex ..\100doors.t | parse | gen | vm
door 1 is open
door 4 is open
door 9 is open
door 16 is open
door 25 is open
door 36 is open
door 49 is open
door 64 is open
door 81 is open
door 100 is open
</pre>
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|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
a = (-1 * ((-1 * (5 * 15)) / 10));
print(a, "\n");
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print(-b, "\n");
print(-(1), "\n");
</syntaxhighlight>
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|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
print(---------------------------------+++5, "\n");
print(((((((((3 + 2) * ((((((2))))))))))))), "\n");
if (1) { if (1) { if (1) { if (1) { if (1) { print(15, "\n"); } } } } }
</syntaxhighlight>
Line 1,008 ⟶ 1,153:
=={{header|
{| class="wikitable"
|-
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|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
/* Compute the gcd of 1071, 1029: 21 */
Line 1,029 ⟶ 1,174:
}
print(a);
</syntaxhighlight>
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|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
/* 12 factorial is 479001600 */
Line 1,161 ⟶ 1,306:
}
print(result);
</syntaxhighlight>
Line 1,277 ⟶ 1,422:
|}
=={{header|Fibonacci sequence}}==
{| class="wikitable"
Line 1,287 ⟶ 1,432:
|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
/* fibonacci of 44 is 701408733 */
Line 1,301 ⟶ 1,446:
}
print(w, "\n");
</syntaxhighlight>
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13 14 RightParen
13 15 Semicolon
</pre></b>
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|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
/* FizzBuzz */
i = 1;
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i = i + 1;
}
</syntaxhighlight>
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|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
/* 99 bottles */
bottles = 99;
while (bottles >
print(bottles, " bottles of beer on the wall\n");
print(bottles, " bottles of beer\n");
print("Take one down, pass it around\n");
bottles = bottles - 1;
print(bottles, " bottles of beer on the wall\n\n");
}
</syntaxhighlight>
Line 1,715 ⟶ 1,860:
3 7 LeftParen
3 8 Identifier bottles
3 16
3
3
3
4 5 Keyword_print
4 10 LeftParen
Line 1,738 ⟶ 1,883:
6 44 RightParen
6 45 Semicolon
7 5
7
7
7
7
7
8 10
8
8
8 20 String " bottles of beer on the wall\n\n"
8
8
9 1 RightBrace
10 1 End_of_input
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String "Take one down, pass it around\n"
;
Assign
Identifier bottles
Subtract
Identifier bottles
Integer 1
Sequence
Sequence
Line 1,806 ⟶ 1,956:
String " bottles of beer on the wall\n\n"
;
</pre></b>
Line 1,838 ⟶ 1,983:
55 prts
56 fetch [0]
61
67
78
84 jmp (-75) 10
89 halt
Line 1,857 ⟶ 2,002:
99 bottles of beer
Take one down, pass it around
98 bottles of beer on the wall
98 bottles of beer
Take one down, pass it around
97 bottles of beer on the wall
Line 1,874 ⟶ 2,014:
2 bottles of beer
Take one down, pass it around
1 bottles of beer on the wall
1 bottles of beer
Take one down, pass it around
</pre>
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|-
| style="vertical-align:top" |
<syntaxhighlight lang="c">
/*
Simple prime number generator
Line 1,918 ⟶ 2,054:
}
print("Total primes found: ", count, "\n");
</syntaxhighlight>
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|-
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<syntaxhighlight lang="c">
{
/*
Line 2,275 ⟶ 2,411:
}
}
</syntaxhighlight>
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