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Difference between revisions of "EDT:EGL Language Literals"
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== Literals (Table 6) == | == Literals (Table 6) == | ||
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| bgcolor="#999999" align="center" | '''''Literals''''' | | bgcolor="#999999" align="center" | '''''Literals''''' | ||
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| done<br> | | done<br> | ||
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| − | | bgcolor="# | + | | bgcolor="#FFA500" | ''integer<sup>2</sup>'' |
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| − | | done<br> | + | | bgcolor="#FFA500" | done<br> |
| − | | done<br> | + | | bgcolor="#FFA500" | done<br> |
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| bgcolor="#cccccc" | ''fixed-decimal<sup>3</sup>'' | | bgcolor="#cccccc" | ''fixed-decimal<sup>3</sup>'' | ||
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| − | | bgcolor="# | + | | bgcolor="#FFA500" | ''floating point<sup>4</sup>'' |
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| − | | bgcolor="#cccccc" | ''string<sup> | + | | bgcolor="#cccccc" | ''string<sup>5</sup>'' |
| <br>done | | <br>done | ||
| done<br>(see this [https://bugs.eclipse.org/bugs/show_bug.cgi?id=347208 IR bug])<br> | | done<br>(see this [https://bugs.eclipse.org/bugs/show_bug.cgi?id=347208 IR bug])<br> | ||
| − | | | + | | done {{bug|353637}} |
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#As in RBD, there are four boolean literals: true false yes no | #As in RBD, there are four boolean literals: true false yes no | ||
| − | # | + | #<span style="background-color:#FFA500;">There are three types of integer literals: smallint, int, and bigint. They are comprised of digits, an optional leading sign, and no decimal point. A smallint literal ends with a lowercase 'i': 1234i. A bigint literal ends with an uppercase 'I': 1234I. An int literal does not end with a letter: 1234.</span> |
#Fixed-decimal literals have 1-32 digits, an optional leading sign, and a decimal point. At least one digit must follow the decimal point, but it's permissible to have no digits before the decimal point. The type of a fixed-decimal literal is decimal(X,Y), where X is the total number of digits and Y is the number of digits to the right of the decimal point. | #Fixed-decimal literals have 1-32 digits, an optional leading sign, and a decimal point. At least one digit must follow the decimal point, but it's permissible to have no digits before the decimal point. The type of a fixed-decimal literal is decimal(X,Y), where X is the total number of digits and Y is the number of digits to the right of the decimal point. | ||
| + | #<span style="background-color:#FFA500;">There are two types of floating point literals: float and smallfloat. They are comprised of digits, an optional leading sign, and an optional decimal point. A smallfloat literal ends with a lowercase 'f': 123.45f. A float literal has two formats; it can end with an uppercase 'F': 123.45F, or it can be written in scientific notation: 1.2345e2.</span> | ||
#String literals are enclosed in double quotes. An optional ux prefix may appear before the opening double quote. The ux prefix means the string is defined as Unicode codepoints in hexadecimal. For example "012" and ux"003000310032" have the same value. The letters u and x may be in any case. | #String literals are enclosed in double quotes. An optional ux prefix may appear before the opening double quote. The ux prefix means the string is defined as Unicode codepoints in hexadecimal. For example "012" and ux"003000310032" have the same value. The letters u and x may be in any case. | ||
#A bytes literal is written as 0x or 0X followed by an even number of hexadecimal digits. For example 0x03AB is a literal whose type is bytes(2). | #A bytes literal is written as 0x or 0X followed by an even number of hexadecimal digits. For example 0x03AB is a literal whose type is bytes(2). | ||
Latest revision as of 10:55, 19 June 2012
Please see the parent of this page, EDT:EGL Language.
Literals (Table 6)
| Literals | Core | JavaScript | Java |
| null | done |
done |
done |
| boolean1 | done |
done |
done |
| integer2 | done |
done |
done |
| fixed-decimal3 | done |
done |
done |
| floating point4 | done |
done |
done |
| string5 | done |
done (see this IR bug) |
done bug 353637 |
| bytes6 | done |
0.5d |
0.5d |
| array | done |
done |
done |
| char | done |
N/S | N/S |
| mbchar | done |
N/S | N/S |
| dbchar | done |
N/S | N/S |
| hex | done |
N/S | N/S |
Notes on Table 6
- As in RBD, there are four boolean literals: true false yes no
- There are three types of integer literals: smallint, int, and bigint. They are comprised of digits, an optional leading sign, and no decimal point. A smallint literal ends with a lowercase 'i': 1234i. A bigint literal ends with an uppercase 'I': 1234I. An int literal does not end with a letter: 1234.
- Fixed-decimal literals have 1-32 digits, an optional leading sign, and a decimal point. At least one digit must follow the decimal point, but it's permissible to have no digits before the decimal point. The type of a fixed-decimal literal is decimal(X,Y), where X is the total number of digits and Y is the number of digits to the right of the decimal point.
- There are two types of floating point literals: float and smallfloat. They are comprised of digits, an optional leading sign, and an optional decimal point. A smallfloat literal ends with a lowercase 'f': 123.45f. A float literal has two formats; it can end with an uppercase 'F': 123.45F, or it can be written in scientific notation: 1.2345e2.
- String literals are enclosed in double quotes. An optional ux prefix may appear before the opening double quote. The ux prefix means the string is defined as Unicode codepoints in hexadecimal. For example "012" and ux"003000310032" have the same value. The letters u and x may be in any case.
- A bytes literal is written as 0x or 0X followed by an even number of hexadecimal digits. For example 0x03AB is a literal whose type is bytes(2).