[转载]VFR Programming Language v1.3 PDF 2010-2-12

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Contents
1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
! b2 ~/ D0 F8 G# K: O& F6 S3 X1.3 Related Information................................................................................1
: i( G  i5 s8 v2 j! y0 Y# L1.4 Terms...................................................................................................1
* }& m/ X" J: J7 U/ j5 t, z2 z2 VFR Description in BNF......................................................................................3
+ L: ~  p! Y( W; i0 [9 w3 \2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
$ v/ O! ^, ?( g+ Q7 P/ Z2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
$ m, c9 F8 l* ?6 c  ^2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
1 e# H: i) m. p! R6 G* B2.4 VFR FormSet Definition...........................................................................6
0 [, V3 ^& f1 K" Z/ }0 g5 Z2 X2.5 VFR FormSet List Definition.....................................................................7
6 m% p/ [* u4 |/ t. }4 \3 ^2.6 VFR Default Stores Definition...................................................................7
2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
0 m. J* V. H+ s1 V& d9 ]2.7.2 VFR EFI Variable Store Definition.................................................8
2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
! u$ ?: ]; o" {+ X. f$ q; q3 B2.9 VFR FormSet SuppressIf Definition............................................................9
2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
9 A* T% e9 @) D; \' w4 F2.10.2 String & String Identifier Definition............................................10
; ~, [9 Y. e2 y$ n* w2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
2.10.5 VFR Question Header Definition.................................................11
2.10.6 VFR Constant Value Definition...................................................11
2 g7 A. H) A  Q/ ~, ]2 m2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
2.11.2 VFR Image Statement Definition................................................13
& T% ?. }) J7 {5 u- O( p2.11.3 VFR Locked Statement Definition...............................................13
2.11.4 VFR Rule Statement Definition..................................................13
2.11.5 VFR Statement Definition.........................................................14
2.11.6 VFR Question Type Statements Definition...................................17
' N* `3 N$ a, Y3 A- D1 d2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
4 E) F6 {5 O$ s4 ^' x- q6 t2.12 VFR Expression Statement Definition.......................................................34
" u+ e2 ]/ K( ?3 y' W" l/ G! ]" w. f2.12.1 OR........................................................................................34
  [# U( l7 o/ a% e2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
/ k- c4 W  K8 q: R' |& R1 F2.12.4 bitwiseand.............................................................................34
4 Q1 d, ]6 T1 E5 z2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
5 u$ z: T0 {3 t3 S) ?) Z, b" E2.12.7 shift......................................................................................35
8 x8 T. ~2 R' h# siii
2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
- m! B* R6 p: i" V5 J: d4 H2.12.10 cast terms..............................................................................36
/ M4 C  v2 T3 a" ]  |1 [2.12.11 atom terms............................................................................36