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

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Contents
; h; W, Z3 a7 l7 Y0 t7 N1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
5 W0 Q$ R$ ~) V2 `2 z0 [- W! K1.2 Target Audience.....................................................................................1
1 E4 }8 B, a( [4 ?# X+ D- h1.3 Related Information................................................................................1
1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
* n! m* d* D0 C4 b7 k9 k4 a2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
% @  k8 C- N2 `2.1.2 #define...................................................................................4
% A7 {' n* h* C" n0 i( g2.1.3 #include..................................................................................4
9 ^1 `. k8 e# x* u/ u2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
2.4 VFR FormSet Definition...........................................................................6
  G3 O4 v& p2 ]/ _% _8 I5 t  r2.5 VFR FormSet List Definition.....................................................................7
2.6 VFR Default Stores Definition...................................................................7
2.7 VFR Variable Store Definition...................................................................8
6 W# |+ C- Y; ~- v+ v2.7.1 VFR Buffer Store Definition.........................................................8
. w9 s' T8 k5 v5 h2.7.2 VFR EFI Variable Store Definition.................................................8
4 C4 e$ T8 V# n3 n! G: |2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
* G  R/ Q3 n3 L8 g% T0 l2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
* ?( t* I8 Z# q! W' z7 @9 N% r2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
% ~: z+ `* u# F, a2.10.5 VFR Question Header Definition.................................................11
& y9 ^, P. `2 N8 Z2 k# A2.10.6 VFR Constant Value Definition...................................................11
2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
* u6 ^2 o) S( t# M& t2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
2.11.4 VFR Rule Statement Definition..................................................13
2.11.5 VFR Statement Definition.........................................................14
! g; q, H7 v' X2.11.6 VFR Question Type Statements Definition...................................17
9 w- ~( _" G- z: r: f2.11.7 VFR Conditional Type Statements Definition................................32
. Z/ |$ q5 o+ Q, r5 L4 y2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
; Y3 h# c  w) E7 F% V* [# L$ w2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
4 k7 q* w- N/ p! h7 j% L2.12.6 compare................................................................................35
" `) V. Z  w' }1 M/ h2.12.7 shift......................................................................................35
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2.12.8 add/minus..............................................................................35
) z" B% `* [- ?" v4 D2.12.9 multiply/divide/modulo............................................................36
9 G* C0 ], j1 x  s2.12.10 cast terms..............................................................................36
* _* a% y# m, }  n9 i- M2.12.11 atom terms............................................................................36