1 files changed, 0 insertions, 93 deletions
diff --git a/boot/lex.c b/boot/lex.c
index 594905f..18f8690 100644
--- a/boot/lex.c
+++ b/boot/lex.c
@@ -13,99 +13,6 @@
 
 #define MAX_CHAR_BUFFER_SIZE 256
 
-// byte position within a file.
-typedef uint64 Pos;
-
-// an extent of text within a file,
-// defined by its start and end byte positions.
-struct Span
-{
-    Pos start;
-    Pos end;
-};
-
-struct Span
-span_new(Pos start, Pos end)
-{
-    return (struct Span){ .start = start, .end = end };
-}
-
-struct Span
-span_empty(void)
-{
-    return (struct Span){ 0, 0 };
-}
-
-struct Span
-span_width(Pos start, uint width)
-{
-    return (struct Span){ .start = start, .end = start + width };
-}
-
-// create a span which encompasses two spans.
-struct Span
-span_merge(struct Span a, struct Span b)
-{
-    return (struct Span){
-        .start = a.start < b.start ? a.start : b.start,
-        .end = a.end > b.end ? a.end : b.end,
-    };
-}
-
-// expand a span by a number of bytes.
-// negative number expands the span to the left,
-// positive number expands the span to the right.
-struct Span
-span_expand(struct Span span, integer by)
-{
-    uint start_expand = by < 0 ? -by : 0;
-    uint end_expand = by > 0 ? by : 0;
-    return (struct Span){
-        .start = span.start - start_expand,
-        .end = span.end + end_expand,
-    };
-}
-
-// check if two spans are equal.
-bool
-span_equals(struct Span a, struct Span b)
-{
-    return a.start == b.start && a.end == b.end;
-}
-
-// check if span equals = { 0, 0 }.
-bool
-span_is_empty(struct Span span)
-{
-    return span_equals(span, (struct Span){ 0, 0 });
-}
-
-uint
-span_length(struct Span span)
-{
-    uint length = span.end - span.start;
-    return length == 0 ? 1 : length;
-}
-
-// a cursor position placed within a text file.
-struct Cursor
-{
-    uint line;
-    uint column;
-};
-
-struct Cursor
-cursor_new(uint line, uint column)
-{
-    return (struct Cursor){ .line = line, .column = column };
-}
-
-struct Cursor
-cursor_empty(void)
-{
-    return cursor_new(0, 0);
-}
-
 // what kind of token is it?
 enum Token_Kind
 {