Compiler: Difference between revisions
| Line 20: | Line 20: | ||
* Whitespace: if___else | * Whitespace: if___else | ||
For the last code example, the tokens are: | |||
if, whitespace, (, i, == , j, \t, \n, else, z, =, 1, ; | |||
<pre> | <pre> | ||
Token | Token | ||
Revision as of 11:33, 26 November 2014
Lexical Analysis
if (i == j)
z = 0;
else
z = 1;
is indeed below in computers
\tif (i == j)\n\t\tz = 0;\n\telse\n\t\tz = 1;
Token Class
Identifier, keywords, '(', ')', Numbers, ...
- Token classes correspond to sets of strings.
- Identifier: A1, Foo, B17
- Integer: 0, 99
- Keyword: 'else' or 'if' or 'begin' or ...
- Whitespace: if___else
For the last code example, the tokens are: if, whitespace, (, i, == , j, \t, \n, else, z, =, 1, ;
Token string ---> Lexical Analysis -------> Parser
Parsing
Semantic Analysis
Optimization
Code Generation
Resource
- coursera.org