Crate spanner 

spanner

easy and powerful source spans, including checks for overrunning a buffer

sizes

supports up to

• 65535 buffers
• 4GiB total

Structs

Buffer

a buffer containing some source code

LineCol

a zero-indexed line and column

Loc

a location in a Buffer

Locd

a value annotated with a Location

Span

a span of start and end Locations in a Buffer

Spanned

a value annotated with a Span

Spanner

handles handing out Spans that point into Buffers

SrcSpan

a span of start and end Locations in a Buffer, including a reference to the Buffer itself

SrcSpanned

a value annotated with a SrcSpan

Traits

BufferSource

source code for a buffer

SpannerExt

helper extension trait to quickly wrap values

Functions

calc_line_beginnings

calculate byte offsets for the start of each line

find_line

find the line number for a given offset, passing the line beginnings and byte offset

find_line_col

find the line and column for a given offset, passing the line beginnings and byte offset