10206 productions re-write
Paul Isaacs <[email protected]> Wed, 22 Feb 2017 23:12:50 -0500
| Newsgroups | gmane.comp.compilers.gpc |
|---|---|
| Message-ID | <[email protected]> |
Hello,
Is the following rewrite correct?
variable-access = entire-variable
| component-variable
| identified-variable
| buffer-variable
entire-variable = variable-identifier
component-variable = indexed-variable
| field-designator
identified-variable = pointer-variable, '^'
buffer-variable = file-variable, '^'
indexed-variable = array-variable, `,', index-expression,
< `,',
index-expression > `]'
field-designator = record-variable, ` .', field-specifier
| field-designator-identifier
array-variable = variable-access
record-variable = variable-access
pointer-variable = variable-access
file-variable = variable-access
field-specifier = field-identifier
REWRITTEN
variable access = entire variable
| ( array variable, '[' index
expression,
< ',',
index expression > ']'
| record variable, '.' field
specifier
| field designator identifier
| pointer variable, '^'
| file variable, '^'
| field specifier
),
{ '^'
| '[' index expression, {
',', index expression }, ']'
| '.', field specifier
| field designator identifier
}
Thanks,
Paul Isaacs
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