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

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Contents
7 e" h( Q3 Z+ U& l8 M. z1 Introduction.....................................................................................................1
9 {+ d4 H" e7 f2 P: X8 P1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
" P" R0 r, A1 g/ {3 j1.4 Terms...................................................................................................1
1 Y% b9 Q  y9 ~4 h4 ~2 VFR Description in BNF......................................................................................3
2.1 VFR Programming Keywords....................................................................3
3 [/ p. l9 Q0 W: }% W; l2.1.1 // (comment marker).................................................................3
2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
: L$ i" |$ M# t  p7 _3 x2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
2.4 VFR FormSet Definition...........................................................................6
2.5 VFR FormSet List Definition.....................................................................7
2.6 VFR Default Stores Definition...................................................................7
0 R. _& @9 @$ j: f0 W1 d2 v2.7 VFR Variable Store Definition...................................................................8
+ R7 u" Y, m* V' G& w2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
# x9 [- Q& X; X2.9 VFR FormSet SuppressIf Definition............................................................9
( I( d6 V/ ^1 E2.10 VFR General Token Definition.................................................................10
8 w7 i) a& O( ^8 u- c7 H2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
' b0 b  @3 Q7 R* U$ a0 w2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
9 U; i% ?, U3 ~% f, i0 L% L2.10.5 VFR Question Header Definition.................................................11
7 F- z# x- Y! t( c, n* e2.10.6 VFR Constant Value Definition...................................................11
' ~5 Y4 f7 p* e# r9 T2.10.7 VFR Statement Image & Locked Tag Definition............................12
* A3 k' @/ q9 n! ?& g2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
, V$ \" I5 T% L' n/ [2.11.4 VFR Rule Statement Definition..................................................13
2.11.5 VFR Statement Definition.........................................................14
2.11.6 VFR Question Type Statements Definition...................................17
: E6 z! I, i; E2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
. m$ b5 e8 }6 V: m. e5 p, G/ t* ~2.12 VFR Expression Statement Definition.......................................................34
2.12.1 OR........................................................................................34
" K* f) k) p, p' B' z" j2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
, S+ J+ V  @, s2.12.4 bitwiseand.............................................................................34
6 T6 T# j; p& I$ p2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
$ W% t/ ^) D- p" h, T4 \+ H2.12.7 shift......................................................................................35
. f- Z+ I, V2 Q5 M/ P4 o% Fiii
1 S  L: D8 [+ U0 b* P2.12.8 add/minus..............................................................................35
0 |  ~2 Q; S8 G8 E6 F2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36