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

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Contents
8 {! |% ]4 ]# o( x' J( ^1 s( ~5 `1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
; H4 f7 K9 l. G: {1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
6 s0 L% r6 Y; F- g# ?1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
2 b& E4 U3 Z' o9 |2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
2.1.2 #define...................................................................................4
3 O* x0 a( d3 D# M  \* z" g2 C# M+ @( D2.1.3 #include..................................................................................4
+ l9 C; x, I  U: y2.2 VFR Program.........................................................................................4
! l$ W, W4 t) n( h! i( M2.3 VFR Data Struct Definition.......................................................................5
2 j5 l  _# ]1 {! T+ P( m2.4 VFR FormSet Definition...........................................................................6
9 |% h9 ]& n4 ^( j) k2.5 VFR FormSet List Definition.....................................................................7
2.6 VFR Default Stores Definition...................................................................7
2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
( A  ?9 ?, L6 p* A3 `2.7.2 VFR EFI Variable Store Definition.................................................8
8 O/ f, M' G  f" U) d( R; k2.7.3 VFR Variable Name Store Definition.............................................8
# M! L2 T: o; E0 l. t6 Z2.8 VFR FormSet DisableIf Definition..............................................................9
1 _& [% R: d; [2.9 VFR FormSet SuppressIf Definition............................................................9
" ^( [" Y, y/ N6 b$ q2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
2 d# T" t% A  ?2.10.2 String & String Identifier Definition............................................10
8 c3 P$ C: s9 C  o2.10.3 Number Definition...................................................................10
6 v2 r+ j2 O/ e6 O2.10.4 VFR Statement Header Definition...............................................10
2.10.5 VFR Question Header Definition.................................................11
- d! J1 G" h& C2.10.6 VFR Constant Value Definition...................................................11
8 P  u$ P( Q2 F& B2 [7 e4 c2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
+ C8 p9 X4 Z# i) {" ~2.11.2 VFR Image Statement Definition................................................13
* N* i: w' j4 W" E; B* i/ y2.11.3 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
2.11.7 VFR Conditional Type Statements Definition................................32
/ l8 C' m$ m4 ]4 @0 M! f( ?) p2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
1 U( B: K, H: `! d0 P7 ]2 V# H2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
: i9 g( ]" @9 k4 _2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
$ B; c; U$ }$ W8 `2.12.5 equal.....................................................................................35
8 {2 i, S; @& c& s/ _9 h2.12.6 compare................................................................................35
. J6 R( g- B% ~/ C- j3 ~2.12.7 shift......................................................................................35
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2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36