в процессе

src/parser.mly

@@ -41,7 +41,7 @@ entries:                    { [] }
     | entry entries         { $1 :: $2 }
 
 entry:
-    | field                 { assert false }
+    | field                 { $1 }
     | template              { $1 }
     | template_dirs         { $1 }
     | column                { B.with_column $1 }
@@ -78,16 +78,15 @@ col_ref:
     | IDENT DOT IDENT            { B.col_ref $1 $3 }
 
 field:
-    | FIELD field_decl END       { failwith "FIELD is not supported yet" }
+    | FIELD field_decl END       { B.with_field $2 }
 
-field_decl:
-    | field_entry field_decl     { failwith "FIELD ENTRY" }
+field_decl:                      { [] }
+    | field_entry field_decl     { $1 :: $2 }
 
 field_entry:
-    NAME STRING                  { failwith "JOPA!" }
-//    | NAME STRING                { B.with_field_name  $2 }
-//    | ALIAS IDENT                { B.with_field_alias $2 }
-//    | field_source               { $1 } 
+    | NAME STRING                { B.with_field_name $2 } 
+    | ALIAS IDENT                { B.with_field_alias $2 }
+    | field_source               { $1 } 
 
 field_source:
     | SOURCE field_source_ref    { B.with_field_source $2 }

src/report.ml

@@ -7,6 +7,7 @@ module L  = List
 module DB = Db_pg
 
 type report_t = { columns: col_t list;
+                  fields: field_t list;
                   datasources: (string * datasource_t) list;
                   connections: (string * connection_t) list;
                   template: string option;
@@ -42,7 +43,7 @@ and filt_op_t = LIKE of val_t | EQ of val_t | NE of val_t
 and fun_ns_t = SQL
 and fun_arg_t = FA_ALIAS of string
 and fun_call_t = { fun_ns: fun_ns_t; fun_name: string; fun_args: fun_arg_t list }
-and field_t = { field_name: string option; field_alias: string option; field_source: field_src_t }
+and field_t = { field_name: string option; field_alias: string option; field_source: field_src_t option }
 and field_src_t = FIELD_FUN_CALL of fun_call_t
 
 and val_t = STR_CONST of string | NUM_CONST of string | VAR_REF of string
@@ -96,6 +97,13 @@ let str_of_val = function
     | STR_CONST(s) -> s
     | VAR_REF(s)   -> P.sprintf "${%s}" s
 
+
+let emit_fun_sql f = 
+    match f with 
+    | { fun_ns = SQL } -> failwith "OK"
+    | { fun_ns = x }   -> failwith "Unsupported namespace"
+
+
 let sql_of rep  =
     let idnt = "   "
     in let i1 = ident idnt
@@ -217,6 +225,8 @@ let sql_of rep  =
 
     in let sel = emit_select cols (emit_from rep) ~where:filter
 
+    in let _ = P.printf "FIELDS: %d\n" (List.length rep.fields)
+
     in if not nested 
        then sel 
        else emit_select (emit_select_cols (wrap_subquery_cols rep.columns sq)) 

src/report_builder.ml

@@ -95,23 +95,31 @@ let with_abort w r =
 let fun_arg_ident i = FA_ALIAS(i)
 
 let fun_call (ns, (name, args)) = 
-    FIELD_FUN_CALL({fun_ns = ns; fun_name = name; fun_args = args})
+    Some(FIELD_FUN_CALL({fun_ns = ns; fun_name = name; fun_args = args}))
 
 let with_field_source src field = 
     { field with field_source = src }
 
-let with_field_name name field = 
+let with_field_name name field =
     { field with field_name = Some(name) }
 
-let with_field_alias alias field = 
+let with_field_alias alias field =
     { field with field_alias = Some(alias) }
 
+let with_field fattr report = 
+    let field = List.fold_left (fun acc f -> f acc) { field_name = None;
+                                                      field_alias = None;
+                                                      field_source = None 
+                                                    } fattr
+    in { report with fields = field :: report.fields }
+
 let populate_vars report = 
     let v = List.map ( fun (n,v) -> (n, (fun r -> str_of_val (List.assoc n r.query_args)))) report.query_args
     in { report with vars = report.vars @ v}
 
 let build_report e  = 
-    let rep = { columns = []; 
+    let rep = { columns = [];
+                fields = [];
                 datasources = [];
                 connections = [];
                 template = None;

src/t/busreport-latex.tmpl

@@ -10,6 +10,7 @@
 \texttt{ ${OUTPUT} } 
 
 Годы выпуска: ${QUERY_ARG_YEAR}
+
 Водитель: ${QUERY_ARG_DRIVER}
 
 \begin{center}

src/t/busreport2.rep

@@ -25,7 +25,7 @@ ECHO " --------------- "
 ECHO "TEMPLATE ${TEMPLATE}"
 ECHO "QUERY_ARGS_BUSN ${QUERY_ARG_BUSN}"
 
-%% ABORT
+ABORT
 
 ECHO AFTER " *** DONE *** "
 
@@ -69,10 +69,10 @@ COLUMN
     %% FOLD YES
 END
 
-%%FIELD
-    %%ALIAS oldest
-%%    NAME "самый старый"
-    %%SOURCE SQL.MAX(year)
-%%END
+FIELD
+  NAME "самый старый"
+  ALIAS oldest
+  SOURCE SQL.MAX(year)
+END