diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/compiler/src/core_scan.erl | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/compiler/src/core_scan.erl b/lib/compiler/src/core_scan.erl index 11b52f6c5f..15bfc78c8b 100644 --- a/lib/compiler/src/core_scan.erl +++ b/lib/compiler/src/core_scan.erl @@ -49,13 +49,37 @@ -import(lists, [reverse/1]). +-type location() :: integer(). +-type category() :: atom(). +-type symbol() :: atom() | float() | integer() | string(). +-type token() :: {category(), Anno :: location(), symbol()} + | {category(), Anno :: location()}. +-type tokens() :: [token()]. +-type error_description() :: term(). +-type error_info() :: {erl_anno:location(), module(), error_description()}. + %% string([Char]) -> %% string([Char], StartPos) -> %% {ok, [Tok], EndPos} | %% {error, {Pos,core_scan,What}, EndPos} +-spec string(String) -> Return when + String :: string(), + Return :: {'ok', Tokens :: tokens(), EndLocation} + | {'error', ErrorInfo :: error_info(), ErrorLocation}, + EndLocation :: location(), + ErrorLocation :: location(). + string(Cs) -> string(Cs, 1). +-spec string(String, StartLocation) -> Return when + String :: string(), + Return :: {'ok', Tokens :: tokens(), EndLocation} + | {'error', ErrorInfo :: error_info(), ErrorLocation}, + StartLocation :: location(), + EndLocation :: location(), + ErrorLocation :: location(). + string(Cs, Sp) -> %% Add an 'eof' to always get correct handling. case string_pre_scan(Cs, [], Sp) of |