initscripts - Mageia fork of Fedora's Init Scripts

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Diffstat (limited to 'src/shvar.c')

0 files changed, 0 insertions, 0 deletions

open Types open Common open Printf let bpos = -1, -1 let raw_pos2pos(a, b) = !Info.current_file, a, b let raw_pos_range { pos = (a1, b1) } { pos = (a2, b2) } = (if a1 = -1 then a2 else a1), (if b2 = -1 then b1 else b2) let pos_range esp1 esp2 = raw_pos2pos (raw_pos_range esp1 esp2) let get_pos pesp = raw_pos2pos pesp.pos let get_pos_start { pos = (start, _) } = start let get_pos_end { pos = (_, end_) } = end_ let var_dollar_ pos = Deref(I_scalar, Ident(None, "_", pos)) let var_STDOUT = Deref(I_star, Ident(None, "STDOUT", raw_pos2pos bpos)) let new_any mcontext any spaces pos = { mcontext = mcontext ; any = any ; spaces = spaces ; pos = pos } let new_any_ any spaces pos = new_any M_unknown any spaces pos let new_esp mcontext e esp_start esp_end = new_any mcontext e esp_start.spaces (raw_pos_range esp_start esp_end) let new_1esp e esp = new_any esp.mcontext e esp.spaces esp.pos let new_pesp mcontext prio e esp_start esp_end = new_any mcontext { priority = prio ; expr = e } esp_start.spaces (raw_pos_range esp_start esp_end) let new_1pesp prio e esp = new_any esp.mcontext { priority = prio ; expr = e } esp.spaces esp.pos let default_esp e = new_any M_unknown e Space_none bpos let default_pesp prio e = new_any M_unknown { priority = prio ; expr = e } Space_none bpos let split_name_or_fq_name full_ident = match split_at2 ':'':' full_ident with | [] -> internal_error "split_ident" | [ident] -> None, ident | l -> let fql, name = split_last l in let fq = String.concat "::" fql in Some fq, name let is_var_dollar_ = function | Deref(I_scalar, Ident(None, "_", _)) -> true | _ -> false let is_var_number_match = function | Deref(I_scalar, Ident(None, s, _)) -> String.length s = 1 && s.[0] <> '0' && char_is_number s.[0] | _ -> false let non_scalar_context context = context = I_hash || context = I_array let is_scalar_context context = context = I_scalar let rec is_not_a_scalar = function | Deref_with(_, context, _, _) | Deref(context, _) -> non_scalar_context context | List [] | List(_ :: _ :: _) -> true | Call(Deref(I_func, Ident(None, "map", _)), _) | Call(Deref(I_func, Ident(None, "grep", _)), _) -> true | Call_op("?:", [ _cond ; a; b ], _) -> is_not_a_scalar a || is_not_a_scalar b | _ -> false let is_not_a_scalar_or_array = function | Deref_with(_, context, _, _) | Deref(context, _) -> context = I_hash | List [] | List(_ :: _ :: _) -> true | _ -> false let is_a_scalar = function | Ref _ | Num _ | Raw_string _ | String _ -> true | Deref_with(_, context, _, _) | Deref(context, _) -> is_scalar_context context | _ -> false let is_a_string = function | String _ | Raw_string _ -> true | _ -> false let is_parenthesized = function | List[] | List[List _] -> true | _ -> false let un_parenthesize = function | List[List[e]] -> e | List[e] -> e | _ -> internal_error "un_parenthesize" let rec un_parenthesize_full = function | List[e] -> un_parenthesize_full e | e -> e let is_always_true = function | Num(n, _) -> float_of_string n <> 0. | Raw_string(s, _) -> s <> "" | String(l, _) -> l <> [] | Ref _ -> true | _ -> false let is_always_false = function | Num(n, _) -> float_of_string n = 0. | Raw_string(s, _) -> s = "" | String(l, _) -> l = [] | List [] -> true | _ -> false let not_complex e = if is_parenthesized e then true else let rec not_complex_ op = function | Call_op("?:", _, _) -> false | Call_op(op', l, _) -> op <> op' && List.for_all (not_complex_ op') l | e -> not (is_parenthesized e) in not_complex_ "" (un_parenthesize_full e) let not_simple = function | Num _ | Ident _ | Deref(_, Ident _) -> false | _ -> true let string_of_Ident = function | Ident(None, s, _) -> s | Ident(Some fq, s, _) -> fq ^ "::" ^ s | _ -> internal_error "string_of_Ident" let context2s = function | I_scalar -> "$" | I_hash -> "%" | I_array -> "@" | I_func -> "&" | I_raw -> "" | I_star -> "*" let variable2s(context, ident) = context2s context ^ ident let rec is_same_fromparser a b = match a, b with | Undef, Undef -> true | Ident(fq1, s1, _), Ident(fq2, s2, _) -> fq1 = fq2 && s1 = s2 | Num(s1, _), Num(s2, _) | Raw_string(s1, _), Raw_string(s2, _) -> s1 = s2 | String(l1, _), String(l2, _) -> List.for_all2 (fun (s1, e1) (s2, e2) -> s1 = s2 && is_same_fromparser e1 e2) l1 l2 | Ref(c1, e1), Ref(c2, e2) | Deref(c1, e1), Deref(c2, e2) -> c1 = c2 && is_same_fromparser e1 e2 | Deref_with(c1, c_1, e1, e_1), Deref_with(c2, c_2, e2, e_2) -> c1 = c2 && c_1 = c_2 && is_same_fromparser e1 e2 && is_same_fromparser e_1 e_2 | Diamond(None), Diamond(None) -> true | Diamond(Some e1), Diamond(Some e2) -> is_same_fromparser e1 e2 | List(l1), List(l2) -> List.for_all2 is_same_fromparser l1 l2 | Call_op(op1, l1, _), Call_op(op2, l2, _) -> op1 = op2 && List.for_all2 is_same_fromparser l1 l2 | Call(e1, l1), Call(e2, l2) -> is_same_fromparser e1 e2 && List.for_all2 is_same_fromparser l1 l2 | Method_call(e1, m1, l1), Method_call(e2, m2, l2) -> is_same_fromparser e1 e2 && is_same_fromparser m1 m2 && List.for_all2 is_same_fromparser l1 l2 | _ -> false let from_scalar esp = match esp.any with | Deref(I_scalar, ident) -> ident | _ -> internal_error "from_scalar" let from_array esp = match esp.any with | Deref(I_array, ident) -> ident | _ -> internal_error "from_array" let msg_with_rawpos (start, end_) msg = Info.pos2sfull_current start end_ ^ msg let die_with_rawpos raw_pos msg = failwith (msg_with_rawpos raw_pos msg) let warn raw_pos msg = print_endline_flush (msg_with_rawpos raw_pos msg) let die_rule msg = die_with_rawpos (Parsing.symbol_start(), Parsing.symbol_end()) msg let warn_rule msg = warn (Parsing.symbol_start(), Parsing.symbol_end()) msg let debug msg = if true then print_endline_flush msg let warn_verb pos msg = if not !Flags.quiet then warn (pos, pos) msg let warn_too_many_space start = warn_verb start "you should have only one space here" let warn_no_space start = warn_verb start "you should have a space here" let warn_cr start = warn_verb start "you should not have a carriage-return (\\n) here" let warn_space start = warn_verb start "you should not have a space here" let rec prio_less = function | P_none, _ | _, P_none -> internal_error "prio_less" | P_paren_wanted prio1, prio2 | prio1, P_paren_wanted prio2 -> prio_less(prio1, prio2) | P_ternary, P_or -> false | P_ternary, P_and -> false | _, P_loose -> true | P_loose, _ -> false | _, P_or -> true | P_or, _ -> false | _, P_and -> true | P_and, _ -> false | _, P_comma -> true | P_comma, _ -> false | _, P_call_no_paren -> true | P_call_no_paren, _ -> false | _, P_assign -> true | P_assign, _ -> false | _, P_ternary -> true | P_ternary, _ -> false | _, P_tight_or -> true | P_tight_or, _ -> false | _, P_tight_and -> true | P_tight_and, _ -> false | P_bit, P_bit -> true | P_bit, _ -> false | _, P_expr -> true | P_expr, _ -> false | _, P_eq -> true | P_eq, _ -> false | _, P_cmp -> true | P_cmp, _ -> false | _, P_add -> true | P_add, _ -> false | _, P_mul -> true | P_mul, _ -> false | _, P_tight -> true | P_tight, _ -> false | _, P_paren _ -> true | P_paren _, _ -> true | P_tok, _ -> true let prio_lo pri_out in_ = if prio_less(in_.any.priority, pri_out) then (match in_.any.priority with | P_paren (P_paren_wanted _) -> () | P_paren pri_in' -> if pri_in' <> pri_out && prio_less(pri_in', pri_out) && not_complex (un_parenthesize in_.any.expr) then warn in_.pos "unneeded parentheses" | _ -> ()) else warn in_.pos "missing parentheses (needed for clarity)" ; in_.any.expr let prio_lo_after pri_out in_ = if in_.any.priority = P_call_no_paren then in_.any.expr else prio_lo pri_out in_ let prio_lo_concat esp = prio_lo P_mul { esp with any = { esp.any with priority = P_paren_wanted esp.any.priority } } let sp_0 esp = match esp.spaces with | Space_none -> () | Space_0 -> () | Space_1 | Space_n -> warn_space (get_pos_start esp) | Space_cr -> warn_cr (get_pos_start esp) let sp_0_or_cr esp = match esp.spaces with | Space_none -> () | Space_0 -> () | Space_1 | Space_n -> warn_space (get_pos_start esp) | Space_cr -> () let sp_1 esp = match esp.spaces with | Space_none -> () | Space_0 -> warn_no_space (get_pos_start esp) | Space_1 -> () | Space_n -> warn_too_many_space (get_pos_start esp) | Space_cr -> warn_cr (get_pos_start esp) let sp_n esp = match esp.spaces with | Space_none -> () | Space_0 -> warn_no_space (get_pos_start esp) | Space_1 -> () | Space_n -> () | Space_cr -> warn_cr (get_pos_start esp) let sp_p esp = match esp.spaces with | Space_none -> () | Space_0 -> warn_no_space (get_pos_start esp) | Space_1 -> () | Space_n -> () | Space_cr -> () let sp_cr esp = match esp.spaces with | Space_none -> () | Space_0 | Space_1 | Space_n -> warn_verb (get_pos_start esp) "you should have a carriage-return (\\n) here" | Space_cr -> () let sp_same esp1 esp2 = if esp1.spaces <> Space_0 then sp_p esp2 else if esp2.spaces <> Space_0 then sp_p esp1 let word_alone esp = let word = esp.any in let mcontext, e = match word with | Ident(None, f, pos) -> let e = match f with | "length" | "stat" | "lstat" | "chop" | "chomp" | "quotemeta" | "lc" | "lcfirst" | "uc" | "ucfirst" -> Call(Deref(I_func, word), [var_dollar_ pos]) | "split" -> Call(Deref(I_func, word), [ Raw_string(" ", pos) ; var_dollar_ pos ]) | "shift" -> Call(Deref(I_func, word), [ Deref(I_array, Ident(None, "_", raw_pos2pos bpos)) ]) | "die" -> Call(Deref(I_func, word), [ Deref(I_scalar, Ident(None, "@", raw_pos2pos bpos)) ]) | "return" | "eof" | "caller" | "redo" | "next" | "last" -> Deref(I_func, word) | "hex" | "ref" -> warn_rule (sprintf "please use \"%s $_\" instead of \"%s\"" f f) ; Call(Deref(I_func, word), [ Raw_string(" ", pos) ; var_dollar_ pos ]) | "time" | "wantarray" | "fork" | "getppid" | "arch" -> warn_rule (sprintf "please use %s() instead of %s" f f) ; Deref(I_func, word) | _ -> word in let mcontext = match f with | "chop" | "chomp" -> M_none | "hex" | "length" | "time" | "fork" | "getppid" -> M_int | "eof" | "wantarray" -> M_int | "stat" | "lstat" -> M_list | "arch" | "quotemeta" | "lc" | "lcfirst" | "uc" | "ucfirst" -> M_string | "split" -> M_array | "shift" -> M_scalar | "die" | "return" | "redo" | "next" | "last" -> M_unknown | "caller" -> M_mixed [M_string ; M_list] | "ref" -> M_ref M_scalar | _ -> M_unknown in mcontext, e | _ -> M_unknown, word in new_pesp mcontext P_tok e esp esp let check_parenthesized_first_argexpr word esp = let want_space = word.[0] = '-' in if word = "return" then () else match esp.any.expr with | [ Call_op(_, (e' :: l), _) ] | e' :: l -> if is_parenthesized e' then if l = [] then (if want_space then sp_n else sp_0) esp else (* eg: join (" ", @l) . "\n" *) die_with_rawpos (get_pos_start esp, get_pos_start esp) "please remove the space before the function call" else sp_p esp | _ -> if word = "time" then die_rule "please use time() instead of time"; sp_p esp let check_parenthesized_first_argexpr_with_Ident ident esp = if esp.any.priority = P_tok then (); (match ident with | Ident(Some _, _, _) -> (match esp.any.expr with | [e] when is_parenthesized e -> () | _ -> warn_rule "use parentheses around argument (otherwise it might cause syntax errors if the package is \"require\"d and not \"use\"d") | Ident(None, word, _) when List.mem word ["ref" ; "readlink"] -> if esp.any.priority <> P_tok then warn_rule "use parentheses around argument" | _ -> ()); check_parenthesized_first_argexpr (string_of_Ident ident) esp let check_hash_subscript esp = let can_be_raw_string = function | "" | "x" | "y" -> false (* special case for {'y'} otherwise the emacs mode goes wild, special case for {'x'} to have the same as {'y'} (since they usually go together) *) | s -> char_is_alpha s.[0] && (String.length s = 1 || string_forall_with char_is_alphanumerical_ 1 s) in match esp.any.expr with | List [String ([(s, List [])], _)] when can_be_raw_string s -> warn esp.pos (sprintf "{\"%s\"} can be written {%s}" s s) | List [Raw_string(s, _)] when can_be_raw_string s -> warn esp.pos (sprintf "{'%s'} can be written {%s}" s s) | _ -> () let check_arrow_needed esp1 esp2 = match esp1.any.expr with | Deref_with(I_array, I_scalar, List [List [Call _]], _) -> () (* "->" needed for (f())[0]->{XX} *) | Deref_with _ -> warn esp2.pos "the arrow \"->\" is unneeded" | _ -> () let check_scalar_subscripted esp = match esp.any with | Deref(I_scalar, Deref _) -> warn_rule "for complex dereferencing, use \"->\"" | _ -> () let check_negatable_expr esp = match un_parenthesize_full esp.any.expr with | Call_op("m//", var :: _, _) when not (is_var_dollar_ var) -> warn_rule "!($var =~ /.../) is better written $var !~ /.../" | Call_op("!m//", var :: _, _) when not (is_var_dollar_ var) -> warn_rule "!($var !~ /.../) is better written $var =~ /.../" | _ -> () let check_ternary_paras(cond, a, b) = let rec dont_need_short_circuit_rec = function | Num _ | Raw_string _ | String ([(_, List [])], _) | Call_op("qw", _, _) -> true | Call(Deref(I_func, Ident(None, "N", _)), [ List(String _ :: l) ]) | Call_op(".", l, _) | Ref(I_hash, List l) | List l -> List.for_all dont_need_short_circuit_rec l | _ -> false in let rec dont_need_short_circuit = function | Ref(_, Deref(_, Ident _)) | Deref(_, Ident _) -> true | Ref(I_hash, List l) | List l -> List.for_all dont_need_short_circuit l | e -> dont_need_short_circuit_rec e in let check_ternary_para = function | List [] -> warn_rule "you may use if_() here\n beware that the short-circuit semantic of ?: is not kept\n if you want to keep the short-circuit behaviour, replace () with @{[]} and there will be no warning anymore" | _ -> () in if dont_need_short_circuit a || is_same_fromparser cond a then check_ternary_para b; if dont_need_short_circuit b || is_same_fromparser cond b then check_ternary_para a; if is_same_fromparser cond a && dont_need_short_circuit b && is_a_scalar a && is_a_scalar b then warn_rule "you can replace \"$foo ? $foo : $bar\" with \"$foo || $bar\""; [ cond; a; b ] let check_unneeded_var_dollar_ esp = if is_var_dollar_ esp.any.expr then warn esp.pos "\"$_ =~ /regexp/\" can be written \"/regexp/\"" else if is_var_number_match esp.any.expr then warn esp.pos "do not use the result of a match (eg: $1) to match another pattern" let check_unneeded_var_dollar_not esp = if is_var_dollar_ esp.any.expr then warn esp.pos "\"$_ !~ /regexp/\" can be written \"!/regexp/\"" else if is_var_number_match esp.any.expr then warn esp.pos "do not use the result of a match (eg: $1) to match another pattern" let check_unneeded_var_dollar_s esp = if is_var_dollar_ esp.any.expr then warn esp.pos "\"$_ =~ s/regexp/.../\" can be written \"s/regexp/.../\"" else if is_var_number_match esp.any.expr then die_with_rawpos esp.pos "do not modify the result of a match (eg: $1)" let check_my esp = if esp.any <> "my" then die_rule "syntax error" let check_foreach esp = if esp.any = "for" then warn esp.pos "write \"foreach\" instead of \"for\"" let check_for esp = if esp.any = "foreach" then warn esp.pos "write \"for\" instead of \"foreach\"" let check_for_foreach esp arg = match arg.any.expr with | List [ Deref(I_scalar, _) ] -> if esp.any = "foreach" then warn esp.pos "you are using the special fpons trick to locally set $_ with a value, for this please use \"for\" instead of \"foreach\"" | List [ Deref_with(context, I_scalar, _, _) ] when context <> I_func -> if esp.any = "foreach" then warn esp.pos "you are using the special fpons trick to locally set $_ with a value, for this please use \"for\" instead of \"foreach\"" | _ -> if esp.any = "for" then warn esp.pos "write \"foreach\" instead of \"for\"" let check_block_sub esp_lines esp_BRACKET_END = match esp_lines.any with | [] -> sp_0_or_cr esp_BRACKET_END | l -> (if List.hd l = Semi_colon then sp_0 else sp_p) esp_lines ; sp_p esp_BRACKET_END ; if esp_BRACKET_END.spaces <> Space_cr then (if last l = Semi_colon then warn_verb (get_pos_end esp_lines) "spurious \";\" before closing block") let check_block_ref esp_lines esp_BRACKET_END = let l = esp_lines.any in if l <> [] && List.hd l = Semi_colon then (sp_0 esp_lines ; sp_p esp_BRACKET_END) else sp_same esp_lines esp_BRACKET_END ; if esp_BRACKET_END.spaces <> Space_cr then (if l <> [] && last l = Semi_colon then warn_verb (get_pos_end esp_lines) "spurious \";\" before closing block") let check_unless_else elsif else_ = if elsif.any <> [] then warn elsif.pos "don't use \"elsif\" with \"unless\" (replace \"unless\" with \"if\")"; if else_.any <> [] then warn else_.pos "don't use \"else\" with \"unless\" (replace \"unless\" with \"if\")" let check_my_our_paren { any = ((comma_closed, _), _) } = if not comma_closed then die_rule "syntax error" let check_simple_pattern = function | [ String([ st, List [] ], _); Raw_string("", _) ] -> if String.length st > 2 && st.[0] = '^' && st.[String.length st - 1] = '$' then let st = skip_n_char_ 1 1 st in if string_forall_with char_is_alphanumerical_ 0 st then warn_rule (sprintf "\"... =~ /^%s$/\" is better written \"... eq '%s'\"" st st) | _ -> () let rec only_one esp = match esp.any with | [List l'] -> only_one { esp with any = l' } | [e] -> e | [] -> die_with_rawpos esp.pos "you must give one argument" | _ -> die_with_rawpos esp.pos "you must give only one argument" let only_one_array_ref esp = let e = only_one esp in (match e with | Call_op("last_array_index", [Deref(I_array, e)], _) -> warn esp.pos (sprintf "you can replace $#%s with -1" (string_of_Ident e)) | _ -> ()); e let only_one_in_List esp = match esp.any.expr with | List l -> only_one { esp with any = l } | e -> e let rec is_only_one_in_List = function | [List l] -> is_only_one_in_List l | [_] -> true | _ -> false let maybe_to_Raw_string = function | Ident(None, s, pos) -> Raw_string(s, pos) | Ident(Some fq, s, pos) -> Raw_string(fq ^ "::" ^ s, pos) | e -> e let to_List = function | [e] -> e | l -> List l let deref_arraylen e = Call_op("last_array_index", [Deref(I_array, e)], raw_pos2pos bpos) let deref_raw context e = let e = match e with | Raw_string(s, pos) -> let fq, ident = split_name_or_fq_name s in Ident(fq, ident, pos) | Deref(I_scalar, (Ident _ as ident)) -> warn_rule (sprintf "%s{$%s} can be written %s$%s" (context2s context) (string_of_Ident ident) (context2s context) (string_of_Ident ident)); e | _ -> e in Deref(context, e) let to_Ident { any = (fq, name); pos = pos } = Ident(fq, name, raw_pos2pos pos) let to_Raw_string { any = s; pos = pos } = Raw_string(s, raw_pos2pos pos) let to_Method_call (object_, method_, para) = match method_ with | Ident(Some "SUPER", name, pos) -> Method_call(maybe_to_Raw_string object_, Raw_string(name, pos), para) | Ident(Some _, _, _) -> Call(Deref(I_func, method_), maybe_to_Raw_string object_ :: para) | _ -> Method_call(maybe_to_Raw_string object_, maybe_to_Raw_string method_, para) let to_Deref_with(from_context, to_context, ref_, para) = if is_not_a_scalar ref_ then warn_rule "bad deref"; Deref_with(from_context, to_context, ref_, para) let to_Local esp = let l = match esp.any.expr with | List[List l] -> l | e -> [e] in let local_vars, local_exprs = fpartition (function | Deref(I_star as context, Ident(None, ident, _)) | Deref(I_scalar as context, Ident(None, ("_" as ident), _)) -> Some(context, ident) | Deref(I_scalar, Ident _) | Deref(I_array, Ident _) | Deref(I_star, Ident _) | Deref_with(I_hash, I_scalar, Ident _, _) | Deref_with(I_hash, I_scalar, Deref(I_scalar, _), _) | Deref_with(I_hash, I_scalar, Deref_with(I_hash, I_scalar, Ident _, _), _) | Deref_with(I_hash, I_scalar, Deref_with(I_hash, I_scalar, Deref(I_scalar, Ident _), _), _) -> None | _ -> die_with_rawpos esp.pos "bad argument to \"local\"" ) l in if local_vars = [] then Call_op("local", local_exprs, raw_pos2pos esp.pos) else if local_exprs = [] then My_our("local", local_vars, raw_pos2pos esp.pos) else die_with_rawpos esp.pos "bad argument to \"local\"" let sub_declaration (name, proto) body sub_kind = Sub_declaration(name, proto, Block body, sub_kind) let anonymous_sub proto body = Anonymous_sub (proto, Block body.any, raw_pos2pos body.pos) let call_with_same_para_special f = Call(f, [Deref(I_star, (Ident(None, "_", raw_pos2pos bpos)))]) let remove_call_with_same_para_special = function | Call(f, [Deref(I_star, (Ident(None, "_", _)))]) -> f | e -> e let cook_call_op op para pos = (match op with | "==" | "!=" | "<=" | ">=" | ">" | "<" | "<=>" -> if List.exists (function | Undef | List [] -> op <> "==" && op <> "!=" (* allowing @l == () *) | e -> is_not_a_scalar_or_array e) para then warn_rule "don't do this" else if List.exists is_a_string para then warn_rule (sprintf "you should use a string operator, not the number operator \"%s\"" op) | "le" | "ge" | "eq" | "ne" | "gt" | "lt" | "cmp" -> if List.exists is_not_a_scalar para then warn_rule "don't do this" else if List.exists (function Num _ -> true | _ -> false) para then warn_rule (sprintf "you should use a number operator, not the string operator \"%s\" (or replace the number with a string)" op) | "||=" | "&&=" -> (match List.hd para with | List [ List _ ] -> warn_rule "remove the parentheses" | e -> if is_not_a_scalar e then warn_rule (sprintf "\"%s\" is only useful with a scalar" op)) | _ -> ()); let call = Call_op(op, para, raw_pos2pos pos) in match op, para with | "=", [My_our _; Ident(None, "undef", _)] -> warn pos "no need to initialize variable, it's done by default" ; call | "=", [My_our _; List[]] -> if Info.is_on_same_line_current pos then warn pos "no need to initialize variables, it's done by default" ; call | "=", [ Deref(I_star, String ([(sf1, List [])], _)); _ ] -> warn_rule (sprintf "write *{'%s'} instead of *{\"%s\"}" sf1 sf1) ; call | "=", [ Deref(I_star, (Ident _ as f1)); Deref(I_star, (Ident _ as f2)) ] -> let s1, s2 = string_of_Ident f1, string_of_Ident f2 in warn pos (sprintf "\"*%s = *%s\" is better written \"*%s = \\&%s\"" s1 s2 s1 s2) ; sub_declaration (f1, None) [ call_with_same_para_special(Deref(I_func, f2)) ] Glob_assign | "=", [ Deref(I_star, Raw_string(sf1, pos_f1)); Deref(I_star, (Ident _ as f2)) ] -> let s2 = string_of_Ident f2 in warn pos (sprintf "\"*{'%s'} = *%s\" is better written \"*{'%s'} = \\&%s\"" sf1 s2 sf1 s2) ; sub_declaration (Ident(None, sf1, pos_f1), None) [ call_with_same_para_special(Deref(I_func, f2)) ] Glob_assign | "=", [ Deref(I_star, (Ident _ as f1)); Ref(I_scalar, Deref(I_func, (Ident _ as f2))) ] -> sub_declaration (f1, None) [ call_with_same_para_special(Deref(I_func, f2)) ] Glob_assign | "=", [ Deref(I_star, Raw_string(sf1, pos_f1)); Ref(I_scalar, Deref(I_func, (Ident _ as f2))) ] -> sub_declaration (Ident(None, sf1, pos_f1), None) [ call_with_same_para_special(Deref(I_func, f2)) ] Glob_assign | "=", [ Deref(I_star, (Ident _ as f1)); (Anonymous_sub(proto, sub, _)) ] -> sub_declaration (f1, proto) [ sub ] Glob_assign | "||", e :: _ when is_always_true e -> warn_rule "<constant> || ... is the same as <constant>"; call | "&&", e :: _ when is_always_false e -> warn_rule "<constant> && ... is the same as <constant>"; call | "||", e :: _ when is_always_false e -> warn_rule "<constant> || ... is the same as ..."; call | "&&", e :: _ when is_always_true e -> warn_rule "<constant> && ... is the same as ..."; call | _ -> call let to_Call_op mcontext op para esp_start esp_end = let pos = raw_pos_range esp_start esp_end in new_any mcontext (cook_call_op op para pos) esp_start.spaces pos let to_Call_op_ mcontext prio op para esp_start esp_end = let pos = raw_pos_range esp_start esp_end in new_any mcontext { priority = prio ; expr = cook_call_op op para pos } esp_start.spaces pos let followed_by_comma pesp true_comma = if true_comma.any then pesp.any.expr else match split_last pesp.any.expr with | l, Ident(None, s, pos) -> l @ [Raw_string(s, pos)] | _ -> pesp.any.expr let pot_strings = Hashtbl.create 16 let pot_strings_and_file = Hashtbl.create 16 let po_comments = ref [] let po_comment esp = lpush po_comments esp.any let check_format_a_la_printf s pos = let rec check_format_a_la_printf_ i = try let i' = String.index_from s i '%' in try (match s.[i' + 1] with | '%' | 'd' | 's' | 'c' -> () | c -> warn (pos + i', pos + i') (sprintf "invalid command %%%c" c)); check_format_a_la_printf_ (i' + 2) with Invalid_argument _ -> warn (pos + i', pos + i') "invalid command %" with Not_found -> () in check_format_a_la_printf_ 0 let generate_pot file = let fd = open_out file in output_string fd ("# SOME DESCRIPTIVE TITLE. # Copyright (C) YEAR Free Software Foundation, Inc. # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR. # #, fuzzy msgid \"\" msgstr \"\" \"Project-Id-Version: PACKAGE VERSION\\n\" \"POT-Creation-Date: " ^ input_line (Unix.open_process_in "date '+%Y-%m-%d %H:%M%z'") ^ "\\n\" \"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\\n\" \"Last-Translator: FULL NAME <EMAIL@ADDRESS>\\n\" \"Language-Team: LANGUAGE <LL@li.org>\\n\" \"MIME-Version: 1.0\\n\" \"Content-Type: text/plain; charset=CHARSET\\n\" \"Content-Transfer-Encoding: 8-bit\\n\" ") ; let rec print_formatted_char = function | '"' -> output_char fd '\\'; output_char fd '"' | '\t' -> output_char fd '\\'; output_char fd 't' | '\\' -> output_char fd '\\'; output_char fd '\\' | '\n' -> output_string fd "\\n\"\n\"" | c -> output_char fd c in Hashtbl.iter (fun s po_comments -> match Hashtbl.find_all pot_strings_and_file s with | [] -> () | l -> List.iter (fun po_comment -> output_string fd ("#. " ^ po_comment ^ "\n")) po_comments; List.iter (fun _ -> Hashtbl.remove pot_strings_and_file s) l ; fprintf fd "#: %s\n" (String.concat " " (List.map (fun s -> s ^ ":1") l)) ; output_string fd "#, c-format\n" ; output_string fd (if String.contains s '\n' then "msgid \"\"\n\"" else "msgid \"") ; String.iter print_formatted_char s ; output_string fd "\"\n" ; output_string fd "msgstr \"\"\n\n" ) pot_strings ; close_out fd let call_func is_a_func (e, para) = match e with | Deref(I_func, Ident(None, f, _)) -> let para' = match f with | "no" -> (match para with | [ Ident(_, _, pos) as s ] -> Some [ Raw_string(string_of_Ident s, pos) ] | [ Call(Deref(I_func, (Ident(_, _, pos) as s)), l) ] -> Some(Raw_string(string_of_Ident s, pos) :: l) | _ -> die_rule "use \"no PACKAGE <para>\"") | "undef" -> (match para with | [ Deref(I_star, ident) ] -> Some [ Deref(I_func, ident) ] | _ -> None) | "N" | "N_" -> (match para with | [ List(String([ s, List [] ], (file, pos_a, _)) :: _) ] -> if !Flags.generate_pot then ( Hashtbl.replace pot_strings s ((try Hashtbl.find pot_strings s with Not_found -> []) @ !po_comments) ; po_comments := [] ; Hashtbl.add pot_strings_and_file s file ; ) ; check_format_a_la_printf s pos_a ; (*if String.contains s '\t' then warn_rule "tabulation in translated string must be written \\\\t";*) (*if count_matching_char s '\n' > 10 then warn_rule "long string";*) None | [ List(String _ :: _) ] -> die_rule "don't use interpolated translated string, use %s or %d instead" | _ -> die_rule (sprintf "%s() must be used with a string" f)) | "goto" -> (match para with | [ Ident(None, s, pos) ] -> Some [ Raw_string(s, pos) ] | _ -> None) | "last" | "next" | "redo" when not is_a_func -> (match para with | [ Ident(None, s, pos) ] -> Some [ Raw_string(s, pos) ] | _ -> die_rule (sprintf "%s must be used with a raw string" f)) | "length" -> if para = [] then warn_rule "length() with no parameter !?" else if is_not_a_scalar (List.hd para) then warn_rule "never use \"length @l\", it returns the length of the string int(@l)" ; None | "split" -> (match para with | [ List(Call_op("m//", Deref(I_scalar, Ident(None, "_", _)) :: pattern, pos) :: l) ] | Call_op("m//", Deref(I_scalar, Ident(None, "_", _)) :: pattern, pos) :: l -> Some(Call_op("qr//", pattern, pos) :: l) | _ -> None) | "map" | "grep" -> (match para with | Anonymous_sub _ :: _ -> () | _ -> warn_rule (sprintf "always use \"%s\" with a block (eg: %s { ... } @list)" f f)); None | _ -> None in Call(e, some_or para' para) | _ -> Call(e, para) let call(e, para) = call_func false (e, para) let call_and_context(e, para) priority esp_start esp_end = let context = match e with | Deref(I_func, Ident(None, f, _)) -> (match f with | "map" | "grep" | "grep_index" | "map_index" | "partition" -> M_list | "find" -> M_scalar | "any" | "every" -> M_scalar | "find_index" -> M_int | "each_index" -> M_none | _ -> M_unknown) | _ -> M_unknown in new_pesp context priority (call(e, para)) esp_start esp_end let call_one_scalar_para { any = e ; pos = pos } para esp_start esp_end = let para = match para with | [] -> if not (List.mem e [ "length" ]) then warn_rule (sprintf "please use \"%s $_\" instead of \"%s\"" e e) ; [var_dollar_ (raw_pos2pos pos)] | _ -> para in new_pesp M_unknown P_mul (call(Deref(I_func, Ident(None, e, raw_pos2pos pos)), para)) esp_start esp_end let call_op_if_infix left right esp_start esp_end = (match left, right with | List [Call_op("=", [Deref(context, _); _], _)], _ when non_scalar_context context -> () | List [Call_op("=", [v; _], _)], List [Call_op("not", [v'], _)] when is_same_fromparser v v' -> warn_rule "\"$foo = ... if !$foo\" can be written \"$foo ||= ...\"" | _ -> ()); let pos = raw_pos_range esp_start esp_end in new_any M_none (Call_op("if infix", [ left ; right], raw_pos2pos pos)) esp_start.spaces pos let call_op_unless_infix left right esp_start esp_end = (match left, right with | List [Call_op("=", [Deref(context, _); _], _)], _ when non_scalar_context context -> () | List [Call_op("=", [v; _], _)], List [v'] when is_same_fromparser v v' -> warn_rule "\"$foo = ... unless $foo\" can be written \"$foo ||= ...\"" | _ -> ()); (match right with | List [Call_op(op, _, _)] -> (match op with | "&&" | "||" | "not" | "ne" | "?:" -> warn_rule "don't use \"unless\" when the condition is complex, use \"if\" instead" | _ -> ()); | _ -> ()); let pos = raw_pos_range esp_start esp_end in new_any M_none (Call_op("unless infix", [ left ; right], raw_pos2pos pos)) esp_start.spaces pos let (current_lexbuf : Lexing.lexbuf option ref) = ref None let rec list2tokens l = let rl = ref l in fun lexbuf -> match !rl with | [] -> internal_error "list2tokens" | ((start, end_), e) :: l -> lexbuf.Lexing.lex_abs_pos <- 0 ; lexbuf.Lexing.lex_start_pos <- start ; lexbuf.Lexing.lex_curr_pos <- end_ ; rl := l ; e let parse_tokens parse tokens lexbuf_opt = if lexbuf_opt <> None then current_lexbuf := lexbuf_opt ; if tokens = [] then [] else parse (list2tokens tokens) (some !current_lexbuf) let parse_interpolated parse l = let l' = List.map (fun (s, tokens) -> s, to_List(parse_tokens parse tokens None)) l in match split_last l' with


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