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Relational operators; string literals for SQL
author Adam Chlipala <adamc@hcoop.net>
date Thu, 21 Aug 2008 15:27:04 -0400
parents 5ac2cf59b839
children 87d41ac28b30
rev   line source
adamc@56 1 type int
adamc@56 2 type float
adamc@56 3 type string
adamc@91 4
adamc@119 5 type unit = {}
adamc@119 6
adamc@186 7 datatype bool = False | True
adamc@186 8
adamc@91 9
adamc@203 10 (** SQL *)
adamc@203 11
adamc@203 12 con sql_table :: {Type} -> Type
adamc@203 13
adamc@204 14 (*** Queries *)
adamc@204 15
adamc@204 16 con sql_query :: {{Type}} -> Type
adamc@229 17 con sql_query1 :: {{Type}} -> {{Type}} -> Type
adamc@223 18 con sql_exp :: {{Type}} -> {{Type}} -> Type -> Type
adamc@204 19
adamc@223 20 con sql_subset :: {{Type}} -> {{Type}} -> Type
adamc@223 21 val sql_subset : keep_drop :: {({Type} * {Type})}
adamc@223 22 -> sql_subset
adamc@223 23 (fold (fn nm => fn fields :: ({Type} * {Type}) => fn acc =>
adamc@223 24 [nm] ~ acc => fields.1 ~ fields.2 =>
adamc@223 25 [nm = fields.1 ++ fields.2] ++ acc) [] keep_drop)
adamc@223 26 (fold (fn nm => fn fields :: ({Type} * {Type}) => fn acc =>
adamc@223 27 [nm] ~ acc =>
adamc@223 28 [nm = fields.1] ++ acc) [] keep_drop)
adamc@223 29 val sql_subset_all : tables :: {{Type}}
adamc@223 30 -> sql_subset tables tables
adamc@223 31
adamc@229 32 val sql_query1 : tables ::: {{Type}}
adamc@224 33 -> grouped ::: {{Type}}
adamc@223 34 -> selected ::: {{Type}}
adamc@223 35 -> {From : $(fold (fn nm => fn fields :: {Type} => fn acc =>
adamc@223 36 [nm] ~ acc => [nm = sql_table fields] ++ acc) [] tables),
adamc@223 37 Where : sql_exp tables [] bool,
adamc@224 38 GroupBy : sql_subset tables grouped,
adamc@224 39 Having : sql_exp grouped tables bool,
adamc@224 40 SelectFields : sql_subset grouped selected}
adamc@229 41 -> sql_query1 tables selected
adamc@229 42
adamc@229 43 type sql_relop
adamc@229 44 val sql_union : sql_relop
adamc@229 45 val sql_intersect : sql_relop
adamc@229 46 val sql_except : sql_relop
adamc@229 47 val sql_relop : sql_relop
adamc@229 48 -> tables1 ::: {{Type}}
adamc@229 49 -> tables2 ::: {{Type}}
adamc@229 50 -> selected ::: {{Type}}
adamc@229 51 -> sql_query1 tables1 selected -> sql_query1 tables2 selected -> sql_query1 selected selected
adamc@229 52
adamc@229 53 val sql_query : tables ::: {{Type}}
adamc@229 54 -> selected ::: {{Type}}
adamc@229 55 -> sql_query1 tables selected
adamc@223 56 -> sql_query selected
adamc@204 57
adamc@225 58 val sql_field : otherTabs ::: {{Type}} -> otherFields ::: {Type} -> fieldType ::: Type -> agg ::: {{Type}}
adamc@221 59 -> tab :: Name -> field :: Name
adamc@223 60 -> sql_exp ([tab = [field = fieldType] ++ otherFields] ++ otherTabs) agg fieldType
adamc@209 61
adamc@221 62 class sql_injectable
adamc@221 63 val sql_bool : sql_injectable bool
adamc@221 64 val sql_int : sql_injectable int
adamc@221 65 val sql_float : sql_injectable float
adamc@221 66 val sql_string : sql_injectable string
adamc@223 67 val sql_inject : tables ::: {{Type}} -> agg ::: {{Type}} -> t ::: Type -> t -> sql_injectable t -> sql_exp tables agg t
adamc@209 68
adamc@220 69 con sql_unary :: Type -> Type -> Type
adamc@220 70 val sql_not : sql_unary bool bool
adamc@223 71 val sql_unary : tables ::: {{Type}} -> agg ::: {{Type}} -> arg ::: Type -> res ::: Type
adamc@223 72 -> sql_unary arg res -> sql_exp tables agg arg -> sql_exp tables agg res
adamc@220 73
adamc@220 74 con sql_binary :: Type -> Type -> Type -> Type
adamc@220 75 val sql_and : sql_binary bool bool bool
adamc@220 76 val sql_or : sql_binary bool bool bool
adamc@223 77 val sql_binary : tables ::: {{Type}} -> agg ::: {{Type}} -> arg1 ::: Type -> arg2 ::: Type -> res ::: Type
adamc@223 78 -> sql_binary arg1 arg2 res -> sql_exp tables agg arg1 -> sql_exp tables agg arg2 -> sql_exp tables agg res
adamc@220 79
adamc@219 80 type sql_comparison
adamc@219 81 val sql_eq : sql_comparison
adamc@219 82 val sql_ne : sql_comparison
adamc@219 83 val sql_lt : sql_comparison
adamc@219 84 val sql_le : sql_comparison
adamc@219 85 val sql_gt : sql_comparison
adamc@219 86 val sql_ge : sql_comparison
adamc@219 87 val sql_comparison : sql_comparison
adamc@223 88 -> tables ::: {{Type}} -> agg ::: {{Type}} -> t ::: Type -> sql_exp tables agg t -> sql_exp tables agg t
adamc@223 89 -> sql_injectable t -> sql_exp tables agg bool
adamc@203 90
adamc@203 91 (** XML *)
adamc@203 92
adamc@139 93 con tag :: {Type} -> {Unit} -> {Unit} -> {Type} -> {Type} -> Type
adamc@91 94
adamc@91 95
adamc@139 96 con xml :: {Unit} -> {Type} -> {Type} -> Type
adamc@141 97 val cdata : ctx ::: {Unit} -> use ::: {Type} -> string -> xml ctx use []
adamc@104 98 val tag : attrsGiven ::: {Type} -> attrsAbsent ::: {Type} -> attrsGiven ~ attrsAbsent
adamc@139 99 -> ctxOuter ::: {Unit} -> ctxInner ::: {Unit}
adamc@139 100 -> useOuter ::: {Type} -> useInner ::: {Type} -> useOuter ~ useInner
adamc@139 101 -> bindOuter ::: {Type} -> bindInner ::: {Type} -> bindOuter ~ bindInner
adamc@104 102 -> $attrsGiven
adamc@139 103 -> tag (attrsGiven ++ attrsAbsent) ctxOuter ctxInner useOuter bindOuter
adamc@139 104 -> xml ctxInner useInner bindInner
adamc@139 105 -> xml ctxOuter (useOuter ++ useInner) (bindOuter ++ bindInner)
adamc@140 106 val join : ctx ::: {Unit}
adamc@139 107 -> use1 ::: {Type} -> bind1 ::: {Type} -> bind2 ::: {Type}
adamc@139 108 -> use1 ~ bind1 -> bind1 ~ bind2
adamc@140 109 -> xml ctx use1 bind1
adamc@140 110 -> xml ctx (use1 ++ bind1) bind2
adamc@140 111 -> xml ctx use1 (bind1 ++ bind2)
adamc@148 112 val useMore : ctx ::: {Unit} -> use1 ::: {Type} -> use2 ::: {Type} -> bind ::: {Type}
adamc@148 113 -> use1 ~ use2
adamc@148 114 -> xml ctx use1 bind
adamc@148 115 -> xml ctx (use1 ++ use2) bind
adamc@91 116
adamc@110 117 con xhtml = xml [Html]
adamc@139 118 con page = xhtml [] []
adamc@110 119
adamc@204 120 (*** HTML details *)
adamc@204 121
adamc@140 122 con html = [Html]
adamc@140 123 con head = [Head]
adamc@140 124 con body = [Body]
adamc@141 125 con lform = [Body, LForm]
adamc@93 126
adamc@140 127 val head : unit -> tag [] html head [] []
adamc@140 128 val title : unit -> tag [] head [] [] []
adamc@110 129
adamc@140 130 val body : unit -> tag [] html body [] []
adamc@140 131 con bodyTag = fn attrs :: {Type} => ctx ::: {Unit} -> [Body] ~ ctx -> unit
adamc@140 132 -> tag attrs ([Body] ++ ctx) ([Body] ++ ctx) [] []
adamc@141 133 con bodyTagStandalone = fn attrs :: {Type} => ctx ::: {Unit} -> [Body] ~ ctx -> unit
adamc@141 134 -> tag attrs ([Body] ++ ctx) [] [] []
adamc@141 135
adamc@141 136 val br : bodyTagStandalone []
adamc@119 137
adamc@140 138 val p : bodyTag []
adamc@140 139 val b : bodyTag []
adamc@140 140 val i : bodyTag []
adamc@140 141 val font : bodyTag [Size = int, Face = string]
adamc@140 142
adamc@140 143 val h1 : bodyTag []
adamc@140 144 val li : bodyTag []
adamc@140 145
adamc@140 146 val a : bodyTag [Link = page]
adamc@140 147
adamc@141 148 val lform : ctx ::: {Unit} -> [Body] ~ ctx -> bind ::: {Type}
adamc@141 149 -> xml lform [] bind
adamc@141 150 -> xml ([Body] ++ ctx) [] []
adamc@153 151 con lformTag = fn ty :: Type => fn inner :: {Unit} => fn attrs :: {Type} =>
adamc@141 152 ctx ::: {Unit} -> [LForm] ~ ctx
adamc@141 153 -> nm :: Name -> unit
adamc@153 154 -> tag attrs ([LForm] ++ ctx) inner [] [nm = ty]
adamc@153 155 val textbox : lformTag string [] []
adamc@155 156 val password : lformTag string [] []
adamc@153 157 val ltextarea : lformTag string [] []
adamc@153 158
adamc@190 159 val checkbox : lformTag bool [] []
adamc@190 160
adamc@153 161 con radio = [Body, Radio]
adamc@153 162 val radio : lformTag string radio []
adamc@153 163 val radioOption : unit -> tag [Value = string] radio [] [] []
adamc@142 164
adamc@154 165 con select = [Select]
adamc@154 166 val lselect : lformTag string select []
adamc@154 167 val loption : unit -> tag [Value = string] select [] [] []
adamc@154 168
adamc@142 169 val submit : ctx ::: {Unit} -> [LForm] ~ ctx
adamc@142 170 -> use ::: {Type} -> unit
adamc@142 171 -> tag [Action = $use -> page] ([LForm] ++ ctx) ([LForm] ++ ctx) use []