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

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Contents
2 |' |! x3 [7 r1 Y, b% U; h1 Introduction.....................................................................................................1
$ c" l* R7 E, F# l' s# X. t1.1 Overview..............................................................................................1
) `  ?8 J+ x) P, G5 s0 `# c1.2 Target Audience.....................................................................................1
+ c; d- |% x# j1 k8 _& _1.3 Related Information................................................................................1
1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
7 v3 [' ^2 N$ n5 n2 b: X2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
' y+ f+ c" E: @6 K* w$ P2.1.2 #define...................................................................................4
! @' J" _  l( ^9 L' `2.1.3 #include..................................................................................4
7 h1 g9 i. }& R3 `1 f5 B2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
2.4 VFR FormSet Definition...........................................................................6
0 o7 ^5 |$ f  \. k# L9 j7 p) @' X2.5 VFR FormSet List Definition.....................................................................7
3 q# R1 z0 y/ f/ e. _+ S2 }2.6 VFR Default Stores Definition...................................................................7
( u5 @1 e% J* o% z% ?2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
: h) T/ b- \% m: [0 a2.7.3 VFR Variable Name Store Definition.............................................8
$ I. c( A5 `! F2.8 VFR FormSet DisableIf Definition..............................................................9
" a/ e; W+ z- w+ C) C2.9 VFR FormSet SuppressIf Definition............................................................9
- g! a2 r1 ?2 X( R" ~2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
/ x  ^7 r2 ?& P! u0 u( T2 {. c* @4 w2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
2 x5 p. z: v, z! [; h0 G, K7 E2.10.4 VFR Statement Header Definition...............................................10
2.10.5 VFR Question Header Definition.................................................11
2.10.6 VFR Constant Value Definition...................................................11
# \# A7 I2 p8 t" H$ }. }; |! y2.10.7 VFR Statement Image & Locked Tag Definition............................12
& A1 F" j" g6 W3 S2 _% z/ l* f$ Z2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
9 j$ |7 c: D* c( P2.11.2 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
" w+ j- R: |2 |/ o2.11.6 VFR Question Type Statements Definition...................................17
5 b  S9 l: U7 X2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
0 e: q2 i; e. `+ T* y) p2.12.1 OR........................................................................................34
. s4 M. h+ y0 G  r5 L; k6 w2.12.2 AND......................................................................................34
3 E% R! }" ?: A8 M3 w2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
# C0 A2 r# V. a) N; s, b" n0 ?4 \2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
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, u& k7 O% K5 }2 |$ o2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
% ^  l& @8 j/ t- H6 a2.12.11 atom terms............................................................................36