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

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Contents
1 Introduction.....................................................................................................1
* U% J( U/ X+ W, V3 x2 U1.1 Overview..............................................................................................1
- V- y. B1 \( x9 {* `7 \4 X; B* q1.2 Target Audience.....................................................................................1
' M4 p1 h; ?- s5 ]5 S9 R- y  q0 F1.3 Related Information................................................................................1
7 O7 Q$ a2 X. H: T3 @6 w7 W' q5 a1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
  \* j' W' q! ~+ \2.1 VFR Programming Keywords....................................................................3
4 a+ C% I7 r0 a) J2.1.1 // (comment marker).................................................................3
2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
" s% o; F$ p" b9 n8 u2.4 VFR FormSet Definition...........................................................................6
2.5 VFR FormSet List Definition.....................................................................7
7 q0 V+ k9 o1 Z2.6 VFR Default Stores Definition...................................................................7
( h, L* m# c: z* o; t' k2.7 VFR Variable Store Definition...................................................................8
* e( v. e  ?1 U6 w& i% h7 s2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
( z- g4 K5 p) ^- ?2.7.3 VFR Variable Name Store Definition.............................................8
% d) D! X9 }# X2 e2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
2.10 VFR General Token Definition.................................................................10
; e  p) m' B& P. Y* k. `2.10.1 GUID Definition.......................................................................10
' G. J8 h$ c& f& `2.10.2 String & String Identifier Definition............................................10
- D7 a( S3 G$ ?+ t9 @; ~0 E. ~4 f2.10.3 Number Definition...................................................................10
2 T$ S* f! G0 j; J2.10.4 VFR Statement Header Definition...............................................10
2.10.5 VFR Question Header Definition.................................................11
# l: Z; r: I) K! [7 }+ c) V! a2.10.6 VFR Constant Value Definition...................................................11
9 s5 d2 c# T. X5 f1 e2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
8 w- I! z3 M+ k7 }" E/ W2.11.1 VFR Form Map Definition..........................................................13
2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
2.11.4 VFR Rule Statement Definition..................................................13
$ y( L  Y& }4 j$ ]2 N2.11.5 VFR Statement Definition.........................................................14
2.11.6 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
# |, e. ?! u( ~( H( S2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
- s5 h8 Z- ?' `) l2.12.5 equal.....................................................................................35
. Q* ?6 M- l( W2.12.6 compare................................................................................35
' t! A# |9 k0 y4 H  C$ M3 ]3 u2.12.7 shift......................................................................................35
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- `2 w. Z) }8 L* {2 O2.12.8 add/minus..............................................................................35
& s/ d& g/ R! i/ ]% p8 u2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
8 D# W" |  O! {) x: {- C* i' c2.12.11 atom terms............................................................................36