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

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Contents
1 Introduction.....................................................................................................1
: A# o8 N  N1 W! n2 ]! r  L1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
) e0 K* ?' Q$ K( F: P" Q- \/ I1.3 Related Information................................................................................1
( m+ V5 H- V# \1 e' i0 c1.4 Terms...................................................................................................1
: g5 g. z! p% R2 U3 g, H  @2 VFR Description in BNF......................................................................................3
2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
7 |' _1 h% i, I9 T7 _% u2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
: Y4 m& e/ s' Z- B2 G# d2.4 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
1 i( o4 N& J! ^! g7 x" K+ b% o2.7.2 VFR EFI Variable Store Definition.................................................8
2.7.3 VFR Variable Name Store Definition.............................................8
7 u2 Q$ H0 o% M0 ^4 ]2.8 VFR FormSet DisableIf Definition..............................................................9
. n$ N4 @( T7 n3 c% Q# s6 [: Z2.9 VFR FormSet SuppressIf Definition............................................................9
; B& _; `( z  N, X2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
7 R: L& z4 E3 A7 J& g' Y  \2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
" l% x; Q# `4 ?% y2 e3 }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
2.11 VFR Form Definition..............................................................................12
6 F- M9 V- x' P/ _8 g' G- f2.11.1 VFR Form Map Definition..........................................................13
( \" f3 v! l+ i8 G0 k( {9 a4 Q2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
' p8 y5 G# t* `2 o; c) M2.11.4 VFR Rule Statement Definition..................................................13
2.11.5 VFR Statement Definition.........................................................14
8 F) O, C- M) k: `& Z. J2.11.6 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
8 e/ j1 T6 E" H/ |1 E2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
" [3 w' F% n- X7 [+ F2 ^8 X2.12.5 equal.....................................................................................35
5 e0 y+ ~% n' p% o2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
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0 N) D7 L6 q- a* W  f) R9 C2.12.8 add/minus..............................................................................35
2 |( f/ r4 \+ u' i3 H. t/ s2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36