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🔥 keyword and keypattern functions

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Just make strings have higher precedence than regexps.
This commit is contained in:
Max Brunsfeld 2015-03-22 14:05:40 -07:00
parent 80ec303b10
commit a19b0e75ac
9 changed files with 6963 additions and 6923 deletions
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12
src/compiler/rules/rules.cc
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@ -24,8 +24,6 @@ using std::set;
using std::vector;
using std::map;
static const int KEYWORD_PRECEDENCE = 100;
static rule_ptr metadata(rule_ptr rule, map<MetadataKey, int> values) {
return std::make_shared<Metadata>(rule, values);
}
@ -44,14 +42,8 @@ rule_ptr sym(const string &name) { return make_shared<NamedSymbol>(name); }
rule_ptr pattern(const string &value) { return make_shared<Pattern>(value); }
rule_ptr str(const string &value) { return make_shared<String>(value); }
rule_ptr keyword(const string &value) {
return token(left_assoc(KEYWORD_PRECEDENCE, str(value)));
}
rule_ptr keypattern(const string &value) {
return token(left_assoc(KEYWORD_PRECEDENCE, pattern(value)));
rule_ptr str(const string &value) {
return token(left_assoc(1, make_shared<String>(value)));
}
rule_ptr err(const rule_ptr &rule) {