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

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Contents
/ T' ?9 r# g" U( s( ]3 k" B1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
% W( m$ N4 c) n, W5 F1 ]+ u1.2 Target Audience.....................................................................................1
# ^& n& W2 g. R4 P  g. U9 X' P2 U1.3 Related Information................................................................................1
1.4 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
3 o+ l- w. g& a+ ?9 ~2.1.3 #include..................................................................................4
2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
$ e' N# E! i0 H8 m2.4 VFR FormSet Definition...........................................................................6
# m8 F3 W1 f0 D5 d2.5 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
' i- L( ?1 Q  l! n  J2.7.2 VFR EFI Variable Store Definition.................................................8
( f4 Q( L* F# c0 l9 n  g2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
* F! N) I* q$ c- S5 ]4 O- x+ [2.10 VFR General Token Definition.................................................................10
2 }; M3 H& I  u9 J+ o( d4 x7 r2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
2 z+ c9 S0 t. o  @2.10.5 VFR Question Header Definition.................................................11
2.10.6 VFR Constant Value Definition...................................................11
, Z! L# X3 O# s, o# B9 s. R2 A2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
2 c+ Q9 q* G& w2.11.1 VFR Form Map Definition..........................................................13
% G2 z( n% r1 J2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
2.11.4 VFR Rule Statement Definition..................................................13
8 A2 J8 l2 K6 c, p& P6 X+ |  h2.11.5 VFR Statement Definition.........................................................14
* T6 w- L0 |8 V1 F& s2.11.6 VFR Question Type Statements Definition...................................17
2.11.7 VFR Conditional Type Statements Definition................................32
/ v3 \: V" v1 Z2.11.8 VFR GUID Statement Definition.................................................33
7 T% ~  i5 I8 h( H9 {7 v2.12 VFR Expression Statement Definition.......................................................34
. r# V0 S% W% l/ k4 H( r0 J6 l2.12.1 OR........................................................................................34
$ T: K, f- k7 Z  H2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
& ~  n8 q) B: q  B0 }/ V2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
: }: _+ o- [6 e4 U* z+ kiii
2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
7 g5 r; V6 I1 k8 I! n$ s/ A, s3 V2.12.11 atom terms............................................................................36