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

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Contents
1 Introduction.....................................................................................................1
/ N+ S) s1 F0 v0 g5 O! I+ V% L1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
* X% \8 s. S; ]; [4 i7 G7 [1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
+ G9 h3 c, @0 P" O2.1 VFR Programming Keywords....................................................................3
& b+ n2 Q. k7 ]8 n- l, U2.1.1 // (comment marker).................................................................3
1 ]% ^( S, r  S2.1.2 #define...................................................................................4
% b; N& F* S: S2.1.3 #include..................................................................................4
2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
2.4 VFR FormSet Definition...........................................................................6
' A, ]- z! V6 f- u2.5 VFR FormSet List Definition.....................................................................7
% ?9 A8 ]: {1 I2.6 VFR Default Stores Definition...................................................................7
$ }# B  |  I2 @2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
! `8 Q' B# y- b$ F$ i( L& o2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
. L8 n/ _3 n: w4 Q* G& m2.10 VFR General Token Definition.................................................................10
, e( M' u2 ~, @2.10.1 GUID Definition.......................................................................10
' k7 q* [9 I8 E. C2.10.2 String & String Identifier Definition............................................10
% t4 f6 g; l3 w" t# x4 L2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
- f4 A+ l6 e5 w7 s7 F2.10.5 VFR Question Header Definition.................................................11
6 Y2 i1 p& S& G# Y* P2 [" e2.10.6 VFR Constant Value Definition...................................................11
2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
$ h' s4 ^4 K& f7 h1 {2.11.1 VFR Form Map Definition..........................................................13
4 a9 K$ J" k6 M* A* k; o2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
, K2 i6 Y- w. M0 v. N* Y2.11.4 VFR Rule Statement Definition..................................................13
# U: F- J+ G4 |1 Z, K6 d2.11.5 VFR Statement Definition.........................................................14
2.11.6 VFR Question Type Statements Definition...................................17
! N9 g; }0 X+ j( I2 M2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
; X. `( T2 r) t' ?8 t9 P; s6 J2.12.1 OR........................................................................................34
, l! @+ ?& I, C2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
5 p6 K" s8 |; k, o2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
% I7 P/ B  U( N3 E4 g: M* V8 g5 Q9 Yiii
9 @( E2 R3 V6 m" `" y6 R2 |* j2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
/ R) Z& m' J$ S2.12.10 cast terms..............................................................................36
  k, }$ F  \' q( S2 M2 s7 h2.12.11 atom terms............................................................................36