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

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Contents
9 J. t. v+ f* T& W! S# A( [" ^* c# ~1 Introduction.....................................................................................................1
4 c; W: O0 I$ [! U. m1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
+ x* Y9 u: @( j' E2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
, K, J6 W8 {9 i4 Q# y0 p% I' S2.1.2 #define...................................................................................4
* L  {6 _. H4 T7 {; z7 ^2.1.3 #include..................................................................................4
7 S: M5 o9 U  L& Q0 P' ?2.2 VFR Program.........................................................................................4
8 t" L2 H9 U" b, M2.3 VFR Data Struct Definition.......................................................................5
$ e% `: v) u$ J! s4 b6 _& J2.4 VFR FormSet Definition...........................................................................6
) S6 [5 Z3 s  o5 _# m' I7 v2.5 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
$ j, \* ~' I" V0 L; c# Z2.7.2 VFR EFI Variable Store Definition.................................................8
: q$ V! b( z5 a* `  i) k2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
- ^" z% ?& x( V! ]7 l/ ~. ?2.9 VFR FormSet SuppressIf Definition............................................................9
2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
9 _. D( K! a; x9 z" a- x5 R& R2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
7 U2 f9 l; l& r% X8 |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
( i6 t3 J! P# m( M; J6 y2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
7 U2 l4 M# t* Z- l0 a2 F2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
9 ]0 V9 `) S/ U( Z: Y: _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
% E- z% Q0 J. f# P" V2.11.8 VFR GUID Statement Definition.................................................33
2.12 VFR Expression Statement Definition.......................................................34
$ N# K5 L+ o6 H, B" Q# g% B2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
, U, a8 ]" ]0 S5 d2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
# [5 }  `( c; M/ L5 s( K3 M2.12.7 shift......................................................................................35
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" k6 _2 e: D5 X% ^2.12.8 add/minus..............................................................................35
% u; k, [* {' A2.12.9 multiply/divide/modulo............................................................36
% w7 Q8 v$ n: c2.12.10 cast terms..............................................................................36
8 J3 o) Y, z/ Z$ F2.12.11 atom terms............................................................................36