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

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Contents
- ?* B  z9 Y4 ]* i& k! F  j1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
' i. P; j+ v1 m6 b* ~. |7 ^- Z; z  o1.2 Target Audience.....................................................................................1
$ I% l( Y# X' }$ ^" t; [1.3 Related Information................................................................................1
4 e* _* O& D- j% p/ {1.4 Terms...................................................................................................1
$ N4 r$ v( g  t2 VFR Description in BNF......................................................................................3
' P% Q* H) [8 w6 `* Z2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
( q! N$ Z+ S9 ]- `0 H1 P2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
8 W+ S6 h* {( S% L$ I+ o2.4 VFR FormSet Definition...........................................................................6
  u6 E2 Y& ?9 `0 V7 [2.5 VFR FormSet List Definition.....................................................................7
0 U% q. t" |7 p  T& X2.6 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
+ i7 _2 n% G% T) }4 c3 \7 s& T2.7.3 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
2.10.2 String & String Identifier Definition............................................10
) T4 r- Y' G( Q" y) M1 d' G! A- w2.10.3 Number Definition...................................................................10
5 C( u% B" A* ]: u1 k# N# }2.10.4 VFR Statement Header Definition...............................................10
/ L' W: r( G! ]8 b2.10.5 VFR Question Header Definition.................................................11
2.10.6 VFR Constant Value Definition...................................................11
2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
2.11.2 VFR Image Statement Definition................................................13
3 C) D! m6 v( z7 Z2.11.3 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
2.11.7 VFR Conditional Type Statements Definition................................32
# B* Z3 h& e% S, o2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
. Y6 R0 ~; O6 B8 ]& A2.12.1 OR........................................................................................34
1 L  D: @5 n: R! p. m. p' E. m2.12.2 AND......................................................................................34
8 o; W  N5 x7 x* Y0 b( D2.12.3 bitwiseor................................................................................34
# C; E$ S8 D9 M% k7 a) b& q$ d6 F2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
1 G$ G& }# k$ w5 [% d/ v! K) U2.12.7 shift......................................................................................35
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2.12.8 add/minus..............................................................................35
* w: Y1 U" R6 S* b5 t9 e2.12.9 multiply/divide/modulo............................................................36
+ @( D5 t8 S9 T7 A7 [4 m2.12.10 cast terms..............................................................................36
9 ^! n9 n: z% B& U4 f0 Y2.12.11 atom terms............................................................................36