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

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Contents
1 Introduction.....................................................................................................1
) F& K+ e0 b3 T# C" m9 i1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
9 U. z5 M+ {) D1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
2.1.2 #define...................................................................................4
) W: W9 w" u0 V( I* y' e9 d3 }2.1.3 #include..................................................................................4
2.2 VFR Program.........................................................................................4
) x7 g# D6 a7 Q& }2.3 VFR Data Struct Definition.......................................................................5
1 C- Y; {3 F: ]) i4 ?6 E" y0 r2.4 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
0 U' r  J% Y! p' J. q2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
2.7.3 VFR Variable Name Store Definition.............................................8
+ e# {+ O$ p8 P0 R/ R2.8 VFR FormSet DisableIf Definition..............................................................9
  X9 ?3 ]* n. s" m; z% F2.9 VFR FormSet SuppressIf Definition............................................................9
2.10 VFR General Token Definition.................................................................10
  V. A( c; [6 _. C6 A2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
  C% }) ~/ t4 E$ p5 e+ b5 ?* f  X9 ?2.10.4 VFR Statement Header Definition...............................................10
2.10.5 VFR Question Header Definition.................................................11
7 L" P; ]# b& x( `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
( P, ~/ v. J5 r9 z( Z2.11.3 VFR Locked Statement Definition...............................................13
7 m0 d5 ]" D8 W, O, s2.11.4 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
: C1 K8 Z+ K! p3 ?& p6 x* c2.11.8 VFR GUID Statement Definition.................................................33
  d7 D, O3 v: r2.12 VFR Expression Statement Definition.......................................................34
2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
8 T% i5 ?5 X! X& d7 }5 P' \2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
" T+ G, C, H5 P# ]2.12.7 shift......................................................................................35
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2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36