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

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Contents
1 Introduction.....................................................................................................1
# c5 M9 h8 C9 G4 H! G* Z; D! s1.1 Overview..............................................................................................1
, t8 ]# p/ u8 G" }: d$ V0 y1.2 Target Audience.....................................................................................1
( M& ^. k: d& W! K' R/ j5 c) q1.3 Related Information................................................................................1
1.4 Terms...................................................................................................1
$ h! ^! \3 b% o2 VFR Description in BNF......................................................................................3
* M: g' d1 O3 x) d: K7 M. S2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
7 \3 r: Y( a+ j7 P' A2 x# ?2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
6 |' U+ d" ^$ [2 n9 ]2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
# M- o8 A( d; r- c, x; ^2.4 VFR FormSet Definition...........................................................................6
2.5 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
4 ~8 ]$ G2 j' `0 }! d$ W' _2.7.2 VFR EFI Variable Store Definition.................................................8
2.7.3 VFR Variable Name Store Definition.............................................8
/ j# r9 }2 y6 k& C2.8 VFR FormSet DisableIf Definition..............................................................9
9 `+ t6 Q$ W: o0 H2.9 VFR FormSet SuppressIf Definition............................................................9
2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
, C0 D2 o9 h' \2.10.2 String & String Identifier Definition............................................10
- U. C6 v+ m% i% A, G$ H2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
2.10.5 VFR Question Header Definition.................................................11
2.10.6 VFR Constant Value Definition...................................................11
2.10.7 VFR Statement Image & Locked Tag Definition............................12
+ F: N4 y0 @7 Q2.11 VFR Form Definition..............................................................................12
: t3 @$ W) B4 {& ^2.11.1 VFR Form Map Definition..........................................................13
2.11.2 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
2.11.6 VFR Question Type Statements Definition...................................17
1 L: E* C' k7 @% c% k2.11.7 VFR Conditional Type Statements Definition................................32
. x) v4 u. z7 c2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
0 k. l5 M9 X- a& L4 k2 o% D( M2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
! x" |7 A) y: N$ X) R/ Giii
# J$ E5 f+ P. [5 q- b" ^* V2.12.8 add/minus..............................................................................35
+ E8 C. i1 Q. K' \2.12.9 multiply/divide/modulo............................................................36
% m0 ?; T4 o' Z. o' O2.12.10 cast terms..............................................................................36
: E+ B; G4 F  Q' @$ [) O2.12.11 atom terms............................................................................36