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

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Contents
1 Introduction.....................................................................................................1
) u, a5 `' p  C' `8 v3 Y1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
6 d1 E+ _  l  P$ n% c$ s! h1.3 Related Information................................................................................1
! @- ?# [/ n! B3 P) k7 S) |1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
- T0 j* j4 `- U8 u: o/ J5 k2.1 VFR Programming Keywords....................................................................3
" s0 D8 J" u; i/ w$ Y2.1.1 // (comment marker).................................................................3
2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
% ]* k2 `- _! z& T2.2 VFR Program.........................................................................................4
6 L/ q  w2 i7 ^2.3 VFR Data Struct Definition.......................................................................5
" L1 ^( [' B5 G8 [" z" }2.4 VFR FormSet Definition...........................................................................6
+ @7 m# W; }- y- C+ U2.5 VFR FormSet List Definition.....................................................................7
& R  }) ]  a4 g+ _( e  r& S2.6 VFR Default Stores Definition...................................................................7
+ F3 X# }! ~; w( W0 Y2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
2.7.3 VFR Variable Name Store Definition.............................................8
6 h8 U; ^: t! c/ j# f2.8 VFR FormSet DisableIf Definition..............................................................9
) X- W. N/ P: x% ~. @2 J  b  h2.9 VFR FormSet SuppressIf Definition............................................................9
2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
% c9 [' j* M1 s$ G' A) {2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
6 v6 }6 y& E+ `  t2.10.4 VFR Statement Header Definition...............................................10
2.10.5 VFR Question Header Definition.................................................11
) y' v- q9 @9 x5 r& b2.10.6 VFR Constant Value Definition...................................................11
2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
1 A" E6 }! f* [1 h4 I5 X+ q$ ^2.11.4 VFR Rule Statement Definition..................................................13
2 J- Q. t, Q- N5 U; v9 e* J2.11.5 VFR Statement Definition.........................................................14
5 @  x) N& E2 e# x2.11.6 VFR Question Type Statements Definition...................................17
( f+ m" h3 m3 w+ j5 R2.11.7 VFR Conditional Type Statements Definition................................32
! u; f9 z6 C1 @  u9 a2.11.8 VFR GUID Statement Definition.................................................33
7 A5 c8 O( H% y0 L+ U2.12 VFR Expression Statement Definition.......................................................34
# F6 ]: Y" R' e2.12.1 OR........................................................................................34
8 V0 o1 X1 |' F: ?' O2.12.2 AND......................................................................................34
* Z( C1 r$ {6 w; u* F7 {* ]7 s2.12.3 bitwiseor................................................................................34
5 u& n  i9 N4 I( |, g, N3 j2.12.4 bitwiseand.............................................................................34
0 s: |! l1 h2 q( ?9 j2.12.5 equal.....................................................................................35
& r. o9 T3 u2 L! x$ [1 B8 n: E2.12.6 compare................................................................................35
- V- H4 r2 O% l" x3 r/ p2.12.7 shift......................................................................................35
$ H. G! `" M# \7 Qiii
2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
0 O& N  `9 C9 H: G/ p, d2.12.10 cast terms..............................................................................36
9 Z% F; m; i" h* q1 Q& m, Q! y2.12.11 atom terms............................................................................36