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

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Contents
+ Q& M6 M& }+ t7 C  Z- r0 \4 ?" }* k1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
3 w0 x* }3 B& L' Y" T8 p5 W2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
5 }( Q* u+ r3 ]: {9 S2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
2.2 VFR Program.........................................................................................4
5 u4 b* M* }. p2.3 VFR Data Struct Definition.......................................................................5
2.4 VFR FormSet Definition...........................................................................6
6 r5 @; q1 Q: y5 n# b$ V1 h: e2 J2.5 VFR FormSet List Definition.....................................................................7
$ y+ `  q+ `3 y: @/ ^2 d2.6 VFR Default Stores Definition...................................................................7
2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
2.7.3 VFR Variable Name Store Definition.............................................8
2 p9 d3 Q! c: m% V2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
, O7 |4 i- L/ V0 {2.10 VFR General Token Definition.................................................................10
+ ?0 L3 N3 H. G5 f1 _& a2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
6 O' s3 t/ y5 m' f+ g4 M2.10.3 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
% @. s! K' x5 V8 c2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
4 X% J6 k( m# b* c% Z9 t2.11.1 VFR Form Map Definition..........................................................13
2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
2.11.4 VFR Rule Statement Definition..................................................13
6 h/ R& A' {% I( |' O" b/ |2.11.5 VFR Statement Definition.........................................................14
% r/ I; |9 w$ P' X2.11.6 VFR Question Type Statements Definition...................................17
2.11.7 VFR Conditional Type Statements Definition................................32
- t' ^/ L( }4 w3 x" F. T2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
2.12.1 OR........................................................................................34
2 d/ `( u* m: b8 {/ t' o1 @2.12.2 AND......................................................................................34
2 F4 n, i9 d8 Y+ l0 d5 E1 a2.12.3 bitwiseor................................................................................34
' P$ A  p" O9 G+ {2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
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  ~* T, {) y! G" a5 r5 o9 D" j, Z2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36