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

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Contents
( A8 @+ Q0 U- D5 c: Z5 }1 Introduction.....................................................................................................1
5 A7 V" i9 {- ]) K1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
% Z, U8 q( ?9 `. v: `1.3 Related Information................................................................................1
0 l1 m+ l9 d/ a) H1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
2.1 VFR Programming Keywords....................................................................3
' n& S- a4 L) m2 z( t) e+ H  ]2.1.1 // (comment marker).................................................................3
! \  X, _' C7 O% _2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
% G- K/ c4 v" m* \- g) a8 g6 S: N2.2 VFR Program.........................................................................................4
2 P; A  N9 J1 p, L1 Y2.3 VFR Data Struct Definition.......................................................................5
2.4 VFR FormSet Definition...........................................................................6
2.5 VFR FormSet List Definition.....................................................................7
2.6 VFR Default Stores Definition...................................................................7
1 b5 b3 w9 W2 ~( y2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
; Q" O5 y9 o1 M3 T+ q+ }, Z2.7.2 VFR EFI Variable Store Definition.................................................8
% O  N: E) B; U4 D. P6 P2.7.3 VFR Variable Name Store Definition.............................................8
/ r  c) p! E. G+ R# N2 y2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
- M$ G5 b5 \3 n9 n3 Z3 R& n! d+ R2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
  C0 O* k7 Z# o0 ~; _1 L2.10.5 VFR Question Header Definition.................................................11
2.10.6 VFR Constant Value Definition...................................................11
. ^: P( O' J/ y9 N  H- T) E  w5 ?2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
6 M7 {: R# I; r7 j' @2.11.1 VFR Form Map Definition..........................................................13
. U% P6 Z7 ^- }  \6 H7 e2.11.2 VFR Image Statement Definition................................................13
$ ^/ l4 Z6 K6 {/ v2.11.3 VFR Locked Statement Definition...............................................13
& O! U. k- a% v( _" c2.11.4 VFR Rule Statement Definition..................................................13
2.11.5 VFR Statement Definition.........................................................14
# ]' s( t# k. B) t! R0 L; h2.11.6 VFR Question Type Statements Definition...................................17
* ~$ Z+ D! P" [( ]& Z! Z) N5 u2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
2.12.1 OR........................................................................................34
+ q8 h( j6 p; {* e# D7 ^2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
$ D9 n. Z' X$ G( S9 [1 q+ q* d2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
6 W& S& @$ y& c) O: G3 K9 b: ciii
2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
# r- v: x* M6 H2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36