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Add helper functions for making shared pointers to rules

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- start work on item set class
This commit is contained in:
Max Brunsfeld 2013-11-10 14:24:25 -08:00
parent ec8b7ccf20
commit 11e3980319
33 changed files with 486 additions and 150 deletions
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43
spec/lr/parse_table_spec.cpp Normal file
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#include "spec_helper.h"
Describe(parse_table_construction) {
Grammar grammar = Grammar(
{
"expression",
"term",
"factor",
"number",
"variable",
"plus",
"times",
"left_paren",
"right_paren"
}, {
rules::choice({
rules::seq({
rules::sym("term"),
rules::sym("plus"),
rules::sym("term") }),
rules::sym("term") }),
rules::choice({
rules::seq({
rules::sym("factor"),
rules::sym("times"),
rules::sym("factor") }),
rules::sym("factor") }),
rules::choice({
rules::sym("variable"),
rules::sym("number"),
rules::seq({
rules::sym("left_paren"),
rules::sym("expression"),
rules::sym("right_paren") }) }),
rules::pattern("\\d+"),
rules::pattern("\\w+"),
rules::str("+"),
rules::str("*"),
rules::str("("),
rules::str(")")
}
);
};