https://github.com/senselogic/transpiler_tutorial
Transpiler tutorial.
https://github.com/senselogic/transpiler_tutorial
Last synced: 12 days ago
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Transpiler tutorial.
- Host: GitHub
- URL: https://github.com/senselogic/transpiler_tutorial
- Owner: SenseLogic
- License: gpl-3.0
- Created: 2017-08-18T08:46:33.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2017-08-18T09:35:50.000Z (almost 8 years ago)
- Last Synced: 2025-06-10T22:50:09.922Z (17 days ago)
- Language: HTML
- Homepage:
- Size: 40 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
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README
# Transpiler Tutorial
## Purpose
Shows how to translate a JavaScript language subset to pseudo-code instructions, using a recursive descent parser.
## Example
```javascript
var a = "hello" + 'hello'; // comment
var b = -1 + 2.0;
if ( a == 'hellohello' ) /* Print( '
Hello // " */
{
document.write( '"' + a + "\"\n" );
}
if ( b == 0 )
{
window.alert( 'oops' );
}
else if ( b == 1.0 )
{
var x = window.prompt( 'name' );
}
else
{
var r = window.confirm( 'bye ?' );
if ( r )
{
document.write( 'bye !' );
}
}
for ( var i = 1; i < 10; i++ )
{
a = i + 1;
}
a = i / 10;
while ( a < 10 )
{
b = a + 1;
a += b;
}
do
{
++a;
}
while ( a < 100 );
for ( var i = 1; i < 20; i++ )
{
for ( var j = 1; j - 1 < i + 1; j++ )
{
a = i + j;
b = i - j;
if ( i < j )
{
continue;
}
else
{
break;
}
}
}
var t = new Array( 'A', 'B', 'C' );
t += [ 'D', 'E', 'F' ];
t = [];
t = new Array();
function Test( a, b, c, d, e )
{
var r = a;
r -= b;
r *= c;
r /= d;
return ( a + b + c + d + e ) / r;
}
Test( 1, 2, 3, 4, 5 );
```
```javascript
Put : "hello" + 'hello'
Into the variable : a
Put : -1 + 2.0
Into the variable : b
If : a == 'hellohello'
Write in the document : '"' + a + "\"\n"
If : b == 0
Show to the user : 'oops'
Else if : b == 1.0
Ask the user : 'name'
Put the answer into the variable : x
Else :
Ask the user to confirm : 'bye ?'
Put the answer into the variable : r
If : r
Write in the document : 'bye !'
For each : i
From : 1
While : i < 10
Put : i + 1
Into the variable : a
Put : i / 10
Into the variable : a
While : a < 10
Put : a + 1
Into the variable : b
Add : b
Into the variable : a
Repeat :
Increment the variable : a
While : a < 100
For each : i
From : 1
While : i < 20
For each : j
From : 1
While : j - 1 < i + 1
Put : i + j
Into the variable : a
Put : i - j
Into the variable : b
If : i < j
Repeat the loop
Else :
Exit the loop
Put the array : 'A' , 'B' , 'C'
Into the variable : t
Add the array : 'D' , 'E' , 'F'
Into the variable : t
Put an empty array
Into the variable : t
Put an empty array
Into the variable : t
Create the function : Test
With the parameters : a , b , c , d , e
Put : a
Into the variable : r
Substract : b
Into the variable : r
Multiply by : c
Into the variable : r
Divide by : d
Into the variable : r
Return the value : ( a + b + c + d + e ) / r
Call the function : Test
With the arguments : 1 , 2 , 3 , 4 , 5
```
## Version
1.0
## Author
Eric Pelzer ([email protected]).
## License
This project is licensed under the GNU General Public License version 3.
See the [LICENSE.md](LICENSE.md) file for details.