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

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Contents
- f" n  M. J  X( {! P4 I1 Introduction.....................................................................................................1
; p* h  d2 ^7 ^& V, l5 u1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
) B* ?& x. u$ C' u* l5 N1.3 Related Information................................................................................1
0 \' m7 V0 E6 x3 F& j) M1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
' Q; m( G6 U$ T3 G$ u1 g2.1 VFR Programming Keywords....................................................................3
! F% E" o. w  u! J* O( `5 J& j2.1.1 // (comment marker).................................................................3
# t! R8 [6 H  d* u! m2.1.2 #define...................................................................................4
  ^# i6 {, M* w0 P9 ]9 b& |2.1.3 #include..................................................................................4
2.2 VFR Program.........................................................................................4
" l6 |8 q; A) }( i2.3 VFR Data Struct Definition.......................................................................5
2.4 VFR FormSet Definition...........................................................................6
; o: A+ \9 ?- v7 l5 K! H1 P! ?2.5 VFR FormSet List Definition.....................................................................7
2.6 VFR Default Stores Definition...................................................................7
" P2 b/ L9 l9 j5 P6 M0 Z9 a2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
1 @5 h- P" j+ Q! p2.7.2 VFR EFI Variable Store Definition.................................................8
2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
* c+ ]( n7 Y1 r% B, d" I6 b" I2.10 VFR General Token Definition.................................................................10
1 _; e7 x! ~+ ~+ V2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
) |) m) O$ d% r: ^# T: f3 q: r2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
+ c/ K  R2 W' h  p- O: S1 D2.10.5 VFR Question Header Definition.................................................11
2.10.6 VFR Constant Value Definition...................................................11
2.10.7 VFR Statement Image & Locked Tag Definition............................12
* F3 h) ]9 f0 t' |; M' w2.11 VFR Form Definition..............................................................................12
' Y2 p: C( h  S  y/ E2.11.1 VFR Form Map Definition..........................................................13
2.11.2 VFR Image Statement Definition................................................13
  w: y* A# J- p4 g$ o) K! k2.11.3 VFR Locked Statement Definition...............................................13
2.11.4 VFR Rule Statement Definition..................................................13
$ ]' G& i/ ~4 e- [2 v( M2.11.5 VFR Statement Definition.........................................................14
6 K7 l  \$ e, Q! L  e: r7 d/ |2.11.6 VFR Question Type Statements Definition...................................17
1 d6 x) ]9 w9 I3 o( G) S2.11.7 VFR Conditional Type Statements Definition................................32
9 [' W. u  n  i# j2 \2.11.8 VFR GUID Statement Definition.................................................33
. _5 p9 J* l  W/ p" M2.12 VFR Expression Statement Definition.......................................................34
* B- F( c% M! ~2.12.1 OR........................................................................................34
9 z+ q4 t8 q/ T1 `2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
8 i/ g; [" J7 @7 F2 F# T2.12.7 shift......................................................................................35
" s0 Y- O' v( d( @8 L2 Iiii
2.12.8 add/minus..............................................................................35
( i3 i  w4 b3 f- [) ?2.12.9 multiply/divide/modulo............................................................36
2 z( K6 ]! _8 t. E6 ~. P% E/ n2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36