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

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Contents
5 d$ y1 Q* s. z# A0 x. q1 Introduction.....................................................................................................1
+ R' Z- B3 N9 ^# i8 f2 w1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
9 a3 w7 _' d8 t- y1.4 Terms...................................................................................................1
$ ]2 a3 }4 P8 U$ A2 VFR Description in BNF......................................................................................3
2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
8 |9 ~/ J$ B3 P- L2.1.2 #define...................................................................................4
2 `5 M3 v( F( h$ j  K2 g% s3 w2.1.3 #include..................................................................................4
2.2 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
2.7 VFR Variable Store Definition...................................................................8
2 C1 }6 P3 z  g( I2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
- L& C1 Q5 v+ Y7 V2.7.3 VFR Variable Name Store Definition.............................................8
$ T% ^: W0 H1 r0 g4 |( e2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
$ i; p" x0 V$ u/ e# j- V' c8 i2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
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
( g8 ?6 O( M) o! o' M2.11 VFR Form Definition..............................................................................12
6 `# E" J7 ~. O" ^+ M+ |2.11.1 VFR Form Map Definition..........................................................13
; A/ }3 F5 A( N% k; ]# I( X2 r! w2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
2.11.4 VFR Rule Statement Definition..................................................13
2.11.5 VFR Statement Definition.........................................................14
; q) l- @/ c$ U. j+ T* J. V+ }2.11.6 VFR Question Type Statements Definition...................................17
9 h+ n+ `9 ^0 M; X9 U2.11.7 VFR Conditional Type Statements Definition................................32
" w5 W. T- g" G8 C2.11.8 VFR GUID Statement Definition.................................................33
7 K/ J- |' D$ y6 b) `2.12 VFR Expression Statement Definition.......................................................34
% d' e* x. u$ }7 @1 E3 ?/ v& f2.12.1 OR........................................................................................34
& A" I/ v  g: L6 x2.12.2 AND......................................................................................34
& f! z( S' ?$ t/ D8 I3 Z2.12.3 bitwiseor................................................................................34
# Q* T0 ~% H. h2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
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2.12.8 add/minus..............................................................................35
- h# h7 ^. t' p& a! l2.12.9 multiply/divide/modulo............................................................36
* d% A/ D- W9 o2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36