/
gen_rp.ml
189 lines (169 loc) · 7.8 KB
/
gen_rp.ml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
(*
Copyright © 2011 MLstate
This file is part of OPA.
OPA is free software: you can redistribute it and/or modify it under the
terms of the GNU Affero General Public License, version 3, as published by
the Free Software Foundation.
OPA is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
more details.
You should have received a copy of the GNU Affero General Public License
along with OPA. If not, see <http://www.gnu.org/licenses/>.
*)
module B = Base
let eprintf fmt = Format.kfprintf (fun _ -> Format.pp_print_flush Format.err_formatter ()) Format.err_formatter fmt
let (<|) f a = f a
let (|>) a f = f a
let ( @* ) g f x = g(f(x))
module O = Ocaml
module Cons = O.Cons
module G = Grammar
module T = Tools
module L = B.List
module A = B.Array
module S = B.String
module C = B.Char
let us = S.unsafe_sub
(* Unescape string: "\\n" --> "\n" etc., fairly complete wrt. ocaml string escapes. *)
let is_lu ch = C.is_lower ch || C.is_upper ch
let is_hex c = (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')
let c3i c1 c2 c3 = ((C.code c1)-48)*100+((C.code c2)-48)*10+((C.code c3)-48)
let c2h c1 c2 = (C.hexa_value (c1))*16+(C.hexa_value c2)
let unescape s =
let l = S.length s in
let r = S.copy s in
let rec aux i j =
if i < l
then
(match s.[i] with
| '\\' ->
let k = i + 1 in
if k < l
then
(match s.[k] with
| '\\' -> (r.[j] <- '\\'; aux (i+2) (j+1))
| '"' -> (r.[j] <- '"'; aux (i+2) (j+1))
| '\'' -> (r.[j] <- '\''; aux (i+2) (j+1))
| 'n' -> (r.[j] <- '\n'; aux (i+2) (j+1))
| 'r' -> (r.[j] <- '\r'; aux (i+2) (j+1))
| 't' -> (r.[j] <- '\t'; aux (i+2) (j+1))
| 'b' -> (r.[j] <- '\b'; aux (i+2) (j+1))
| ' ' -> (r.[j] <- ' '; aux (i+2) (j+1))
| '0'..'9' ->
(if k + 3 < l
then
(match s.[k+1],s.[k+2] with
| ('0'..'9','0'..'9') -> (r.[j] <- C.chr (c3i s.[k] s.[k+1] s.[k+2]); aux (i+4) (j+1))
| _ -> (r.[j] <- '\\'; r.[j+1] <- s.[k]; aux (i+2) (j+2)))
else (r.[j] <- '\\'; r.[j+1] <- s.[k]; aux (i+2) (j+2)))
| 'x' ->
(if k + 3 < l
then
(match s.[k+1],s.[k+2] with
| (ch1,ch2) when (is_hex ch1 && is_hex ch2) ->
(r.[j] <- C.chr (c2h s.[k+1] s.[k+2]); aux (i+4) (j+1))
| _ -> (r.[j] <- '\\'; r.[j+1] <- s.[k]; aux (i+2) (j+2)))
else (r.[j] <- '\\'; r.[j+1] <- s.[k]; aux (i+2) (j+2)))
| ch -> (r.[j] <- '\\'; r.[j+1] <- ch; aux (i+2) (j+2)))
else (r.[j] <- '\\'; aux (i+1) (j+1))
| ch -> (r.[j] <- ch; aux (i+1) (j+1)))
else j
in
us r 0 (aux 0 0)
(*unescape "\\r\\n\\t\\b\\\\\\\"\\'\048\x61\n" = "\r\n\t\b\\\"'0a\n";;*)
let geteqstr str = unescape (S.strip_quotes str)
(*geteqstr "\"abc\\r\\n\"" = "abc\r\n";;*)
let pre_map lst =
L.map (function
| (G.Raw (name,(pre,opts),sects)) ->
let pre = geteqstr pre in
(pre,G.Raw (name,(pre,opts),sects))
| _ -> raise (Failure "pre_map")) lst
let parse_str v = function
| (_v,t_opt,Some (l,_opts),fs_opt) ->
(match fs_opt, t_opt with
| (Some (fs,_),_) -> "("^fs^" ("^v^"))"
| (_,None) -> v
| (_,Some (O.TypeConst O.TypeUnit)) -> "((function \"()\" -> () | _ -> raise (Failure \"unit_of_string\")) ("^v^"))"
| (_,Some (O.TypeConst O.TypeBool)) -> "(bool_of_string ("^v^"))"
| (_,Some (O.TypeConst O.TypeInt)) -> "(int_of_string ("^v^"))"
| (_,Some (O.TypeConst O.TypeInt64)) -> "(Int64.of_string ("^v^"))"
| (_,Some (O.TypeName (_,["int64"]))) -> "(Int64.of_string ("^v^"))"
| (_,Some (O.TypeConst O.TypeFloat)) -> "(float_of_string ("^v^"))"
| (_,Some (O.TypeConst O.TypeString)) -> v
| (_,Some (O.TypeName ([O.TypeConst O.TypeString], ["list"]))) -> "(Str.split (Str.regexp_string \";\") ("^v^"))"
| (_,Some t) ->
OcamlPrint.Output.type_expr stderr t; prerr_newline (); flush stderr;
failwith "Can't convert such a type from string.")
| _ -> v
let parse_null = function
| (_v,t_opt,Some (l,_opts),fs_opt) ->
(match fs_opt, t_opt with
| (Some (fs,_),_) -> false
| (_,None) -> true
| (_,Some (O.TypeConst O.TypeUnit)) -> false
| (_,Some (O.TypeConst O.TypeBool)) -> false
| (_,Some (O.TypeConst O.TypeInt)) -> false
| (_,Some (O.TypeConst O.TypeInt64)) -> false
| (_,Some (O.TypeName (_,["int64"]))) -> false
| (_,Some (O.TypeConst O.TypeFloat)) -> false
| (_,Some (O.TypeConst O.TypeString)) -> true
| (_,Some (O.TypeName ([O.TypeConst O.TypeString], ["list"]))) -> false
| (_,Some t) ->
OcamlPrint.Output.type_expr stderr t; prerr_newline (); flush stderr;
failwith "Can't convert such a type from string.")
| _ -> true
let has_lu str =
let len = S.length str in
let rec aux n = if n >= len then false else if is_lu str.[n] then true else aux (n+1) in
aux 0
let get_sect name i = function
| (_v,t_opt,Some (l,opts),fs_opt) as sect ->
(*eprintf "opts: %s\n" (S.concat "," opts); flush stderr;*)
let idx = string_of_int (i+1) in
let ls = geteqstr l in
let lslen = S.length ls in
let _lws = if L.mem "m" opts then "_lws" else "" in
let _ci = if L.mem "i" opts && has_lu ls then "_ci" else "" in
let skip1 = if L.mem "s" opts then "let p = skip_sptab str strlen p in\n " else "" in
let skip2 = if L.mem "l" opts then "let p = skip_lws str strlen p in\n " else "" in
let pn = parse_null sect in
let s = if pn then "v" else "s" in
let getstr = "let (p,_l,"^s^idx^") = (upto_mark"^_lws^_ci^" "^l^" "^(string_of_int lslen)^" str strlen p) in\n " in
let trim = if L.mem "t" opts then "let "^s^idx^" = rmldtrsp0 "^s^idx^" _l in\n " else "" in
let getv = if pn then "" else "let v"^idx^" = "^(parse_str ("s"^idx) sect)^" in\n " in
skip1^skip2^getstr^trim^getv
| _ -> name
let get_sects name opts = function
| [] -> ("%n", "", name)
| sects ->
(*eprintf "name(2): %s opts=%s\n" name (S.concat "," opts); flush stderr;*)
let lets = L.mapi (fun i sect -> (get_sect name i sect)) sects in
let skip = if L.mem "s" opts then "let p = skip_sptab str strlen p in\n " else "" in
let vs = L.mapi (fun i _ -> "v"^(string_of_int (i+1))) sects in
("p",
"\n let p = %n in\n "^skip^(S.concat "" lets),
"("^name^" ("^(S.concat ", " vs)^"))")
let rec map_pre_to_cons lst pre =
match L.fold_left (fun l (p,n) -> if p = pre then n::l else l) [] lst with
| [] -> eprintf "map_pre_to_cons: no matches\n"; flush stderr; ("%n","","<no matches>")
| [(G.Raw (name,(p,opts),sects))] -> get_sects name opts sects
| raws -> eprintf "map_pre_to_cons: multiple matches\n"; flush stderr; ("%n","","<multiple matches>")
let do_it types name lst file =
let hdrs = L.fold_left (fun l r -> match r with G.Raw (_,(p,_),_) ->
let p = unescape (S.strip_quotes p) in
if S.length p >= 1 then p::l else l | _ -> l) [] lst in
let premap = pre_map lst in
eprintf "mkrp: Generating %s/%s\n" (Unix.getcwd()) file;
Mkrp.mktab1
~ci:true
~from_n:true
~str_to_arg:(map_pre_to_cons premap)
~prefix:name
~header:"open HttpTools\nopen HttpServerCore\n"
~argtys:[("str","string");("strlen","int")]
~intype:"rawmsg"
~restype:"int * rawmsg"
~errordef:[]
file (Array.of_list hdrs) 2 0