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

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Contents
6 c. G6 Z; H5 c" z1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
" |5 `$ i4 @& M5 K4 U; R: G0 U6 \1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
( l8 d# Y* }6 w; S& X1.4 Terms...................................................................................................1
7 l8 D/ ~- H2 Y$ z) `, }2 VFR Description in BNF......................................................................................3
2.1 VFR Programming Keywords....................................................................3
% Y* ?1 C, V% `* r0 ^) I2.1.1 // (comment marker).................................................................3
6 v$ j$ w- b1 S  T* m, n  w2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
/ y$ P$ ^, D! L/ e+ V$ |1 Q2.2 VFR Program.........................................................................................4
2.3 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
2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
+ F& j6 f/ j: D+ _5 Q6 _5 G2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
9 d0 Z: Z9 L3 S+ I2.10.2 String & String Identifier Definition............................................10
/ P9 I& n: q5 B0 b/ l2.10.3 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
, X: o- G. H+ ?' D8 F) a7 W0 |2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
# x! N6 ~; |" k: ]9 _2.11.2 VFR Image Statement Definition................................................13
! p; B1 M2 u1 [. Y9 z4 L2.11.3 VFR Locked Statement Definition...............................................13
" W) y7 J* W. O9 S( {  R9 k4 p( _0 D* G2.11.4 VFR Rule Statement Definition..................................................13
) N7 q9 |( M% p4 ^2.11.5 VFR Statement Definition.........................................................14
5 I/ ^- J( w6 i( ?2.11.6 VFR Question Type Statements Definition...................................17
2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
0 b! l/ F, |  n0 ~" Y2.12.3 bitwiseor................................................................................34
4 ^2 r6 w- y( @3 j, H2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
8 Y8 I+ R. r: q9 |! A2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
# m& U5 [$ x! e( J' ?* G/ ~& c, r- ?iii
# m" ?( z6 Q$ r* B" K" [2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
' N& {! O! y7 O8 O1 Q+ j2.12.10 cast terms..............................................................................36
, z9 j! @9 f- o+ b2.12.11 atom terms............................................................................36