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

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Contents
$ O- W3 X: o( {1 Introduction.....................................................................................................1
8 ~7 R3 G% Y# Y2 [2 L9 M5 B% U1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
/ o* G+ _  D$ T1 d1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
+ i/ S! G; ^# l8 {! v( `, ^" ]2.1 VFR Programming Keywords....................................................................3
5 t. i' r. T# y- ~  {( O; Q2.1.1 // (comment marker).................................................................3
2.1.2 #define...................................................................................4
  c6 n4 R3 w8 `) d/ v- Q6 j2.1.3 #include..................................................................................4
4 M- ?6 ~# c0 c' u( T" z4 \4 z$ ^# L, k8 |2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
; N3 J$ P7 E' x% r! d: {2.4 VFR FormSet Definition...........................................................................6
; D: }  B4 |3 j+ Z7 ~8 X6 f2.5 VFR FormSet List Definition.....................................................................7
- W; d+ i5 C/ q  O2 m% B! j2.6 VFR Default Stores Definition...................................................................7
: @- Z# [; j" t2 @/ t2.7 VFR Variable Store Definition...................................................................8
  G- r, p$ i! p3 h( a2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
, V. S+ B3 D' `; {' A: Q9 }2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
# w7 `1 D9 [$ t3 ~$ {: U9 z2.10 VFR General Token Definition.................................................................10
5 f8 Y: P( _. l( n/ X" P2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
- G) `- [5 n+ \2.10.3 Number Definition...................................................................10
9 B! _2 F0 ~7 a& e8 ~- B4 A* c2.10.4 VFR Statement Header Definition...............................................10
2.10.5 VFR Question Header Definition.................................................11
+ T! F" ~7 n/ m. M7 j" Y1 ]2.10.6 VFR Constant Value Definition...................................................11
4 I0 y7 x7 Y; p8 V) X+ C2.10.7 VFR Statement Image & Locked Tag Definition............................12
  q7 g7 q. ?' I) ~8 E4 ?. D2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
2.11.2 VFR Image Statement Definition................................................13
  m/ b" @( [8 i; p! \  b2.11.3 VFR Locked Statement Definition...............................................13
" g# K3 P& N3 E/ a. a2.11.4 VFR Rule Statement Definition..................................................13
2.11.5 VFR Statement Definition.........................................................14
2.11.6 VFR Question Type Statements Definition...................................17
7 u0 {. c3 _+ x8 N: a6 k2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
: K9 }. Z4 ]7 h( t3 y2.12 VFR Expression Statement Definition.......................................................34
2.12.1 OR........................................................................................34
& {# P/ `- \6 k" i9 ^& \! S2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
; s5 m' T6 c% K$ R  Y; Q1 ^! e) I# [, _2.12.7 shift......................................................................................35
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! j% F# I% H2 o! n1 b# Z. P2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
7 w' V2 K( M3 e/ H/ E+ J2.12.10 cast terms..............................................................................36
! [, T- y+ H' k4 q0 z2 l! _% q+ F2.12.11 atom terms............................................................................36