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

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Contents
1 Introduction.....................................................................................................1
) ?7 H$ p$ X1 o5 t6 P9 |( J1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
6 E! d2 }7 h  n0 J/ M9 A0 l+ J2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
( t% `) w9 Z' }3 k) R% E+ W& g2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
2.4 VFR FormSet Definition...........................................................................6
2.5 VFR FormSet List Definition.....................................................................7
5 p  N7 H; ^+ [- {$ X* ^2.6 VFR Default Stores Definition...................................................................7
* D6 n( e9 u& y, H1 U2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
+ [$ p% f- |. ~; P+ n2 M2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
! C0 s3 k0 p3 }# h( v7 A' D, j5 \0 m* w; B2.9 VFR FormSet SuppressIf Definition............................................................9
$ B( I* ]! t4 b# }; Q+ Q& A  U* z2.10 VFR General Token Definition.................................................................10
6 {- p1 D$ ^+ P  z( d: n2.10.1 GUID Definition.......................................................................10
& R9 L# x  `8 h3 U; J; |& }2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
* Q$ p! n1 F; Q* O$ t. Q! K2.10.5 VFR Question Header Definition.................................................11
2.10.6 VFR Constant Value Definition...................................................11
" R9 Z- U5 {0 @3 J) G2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
) h7 E" C$ t% }2.11.2 VFR Image Statement Definition................................................13
* e) J2 o7 X, n7 \2.11.3 VFR Locked Statement Definition...............................................13
6 D* L! b8 n, n9 r2.11.4 VFR Rule Statement Definition..................................................13
' w! H9 D- T/ X5 ~2.11.5 VFR Statement Definition.........................................................14
1 s' G! D6 r! A$ P' ?, K2.11.6 VFR Question Type Statements Definition...................................17
2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
3 y. G' F- C- ~! m2 m  e/ @6 v2.12 VFR Expression Statement Definition.......................................................34
2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
& x& @3 y1 J( L+ B2.12.4 bitwiseand.............................................................................34
7 S( c( a3 f/ G& H% J% a; r3 ?2.12.5 equal.....................................................................................35
" J/ N& Y8 p; ]2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
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2.12.8 add/minus..............................................................................35
/ i, Y) e/ M- i6 O. `  \2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36