35 lines
1.1 KiB
OCaml
35 lines
1.1 KiB
OCaml
module Region = Simple_utils.Region
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let highlight msg = Printf.eprintf "\027[31m%s\027[0m%!" msg
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let options = EvalOpt.read ();;
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match open_in options#input with
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exception Sys_error msg -> highlight msg
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| cin ->
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let buffer = Lexing.from_channel cin in
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let open Lexing in
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let () =
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buffer.lex_curr_p <-
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{buffer.lex_curr_p with pos_fname = options#input} in
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let () =
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try
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let tree = E_Parser.expr E_Lexer.scan buffer in
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let value = Preproc.(eval Env.empty tree)
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in Printf.printf "%s\n" (string_of_bool value)
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with
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E_Lexer.Error error ->
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let formatted =
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E_Lexer.format
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~offsets:options#offsets ~file:true error
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in highlight formatted.Region.value
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| E_Parser.Error ->
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let region = Preproc.mk_reg buffer
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and value = Preproc.Parse_error in
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let error = Region.{value; region} in
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let formatted =
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Preproc.format ~offsets:options#offsets
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~file:true error
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in highlight formatted.Region.value
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in close_in cin
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