From a22b3bfd2a6e394855cb1cac3ae67ad6882980cf Mon Sep 17 00:00:00 2001
From: Ryo Nihei <nihei.dev@gmail.com>
Date: Sun, 14 Feb 2021 00:47:12 +0900
Subject: Add compiler

The compiler takes a lexical specification expressed by regular expressions and generates a DFA accepting the tokens.
Operators that you can use in the regular expressions are concatenation, alternation, repeat, and grouping.
---
 compiler/compiler.go | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 compiler/compiler.go

(limited to 'compiler/compiler.go')

diff --git a/compiler/compiler.go b/compiler/compiler.go
new file mode 100644
index 0000000..153ad77
--- /dev/null
+++ b/compiler/compiler.go
@@ -0,0 +1,9 @@
+package compiler
+
+func Compile(regexps map[int][]byte) (*DFA, error) {
+	root, symTab, err := parse(regexps)
+	if err != nil {
+		return nil, err
+	}
+	return genDFA(root, symTab), nil
+}
-- 
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