Adds the character range mapping syntaxHEADmain

Ranges of characters can be mapped with []

For example, capitalisation of a letter: [a-z=A-Z]
Caesar cipher shift of 1: [a-zA-Z=b-zaB-ZA]

1 files changed, 10 insertions, 0 deletions

diff --git a/main/subexast.go b/main/subexast.go
index 040bc9d..aabdcd0 100644
--- a/main/subexast.go
+++ b/main/subexast.go
@@ -151,3 +151,13 @@ func (ast SubexASTJoin) compileWith(next SubexState) SubexState {
 		next,
 	}
 }
+
+type SubexASTRange struct {
+	parts map[rune]rune
+}
+func (ast SubexASTRange) compileWith(next SubexState) SubexState {
+	return &SubexRangeState {
+		parts: ast.parts,
+		next: next,
+	}
+}