traxys/tree-sitter
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Extract public compiler API into its own header file

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This commit is contained in:
Max Brunsfeld 2014-02-16 22:13:08 -08:00
parent 0b4e1c8d0d
commit 9e2dc14182
53 changed files with 466 additions and 409 deletions
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29
src/compiler/rules/pattern.cpp
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@ -1,11 +1,18 @@
#include "rules.h"
using std::string;
using std::hash;
using std::set;
#include "pattern.h"
#include "visitor.h"
#include "choice.h"
#include "seq.h"
#include "repeat.h"
#include "character_set.h"
#include <set>
namespace tree_sitter {
namespace rules {
using std::string;
using std::hash;
using std::make_shared;
using std::set;
class PatternParser {
public:
PatternParser(const string &input) :
@ -17,7 +24,7 @@ namespace tree_sitter {
auto result = term();
while (has_more_input() && peek() == '|') {
next();
result = choice({ result, term() });
result = make_shared<Choice>(result, term());
}
return result;
}
@ -26,7 +33,7 @@ namespace tree_sitter {
rule_ptr term() {
rule_ptr result = factor();
while (has_more_input() && (peek() != '|') && (peek() != ')'))
result = seq({ result, factor() });
result = Seq::Build({ result, factor() });
return result;
}
@ -34,7 +41,7 @@ namespace tree_sitter {
rule_ptr result = atom();
if (has_more_input() && (peek() == '+')) {
next();
result = repeat(result);
result = make_shared<Repeat>(result);
}
return result;
}
@ -92,7 +99,7 @@ namespace tree_sitter {
next();
if (peek() == '-') {
next();
value = CharacterSet({ {first_char, peek()} }, true);
value = CharacterSet({ CharacterRange(first_char, peek()) });
next();
} else {
value = CharacterSet({ first_char });
@ -108,9 +115,9 @@ namespace tree_sitter {
case ')':
return CharacterSet({ value });
case 'w':
return CharacterSet({{'a', 'z'}, {'A', 'Z'}}, true);
return CharacterSet({{'a', 'z'}, {'A', 'Z'}});
case 'd':
return CharacterSet({{'0', '9'}}, true);
return CharacterSet({CharacterRange('0', '9')});
default:
error("unrecognized escape sequence");
return CharacterSet();