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

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Contents
( g" n; z6 l) P' o0 K" c: {1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
& Q% T3 J; K) f1.2 Target Audience.....................................................................................1
1.3 Related Information................................................................................1
& b3 d  D0 l8 B" l* c1.4 Terms...................................................................................................1
0 ^( u. H/ j9 T/ B2 VFR Description in BNF......................................................................................3
2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
7 t/ r4 u0 q4 A2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
2.2 VFR Program.........................................................................................4
2.3 VFR Data Struct Definition.......................................................................5
) V1 I! M  r" n1 O9 A3 \2.4 VFR FormSet Definition...........................................................................6
2 |; J) F7 q7 |2.5 VFR FormSet List Definition.....................................................................7
2.6 VFR Default Stores Definition...................................................................7
2.7 VFR Variable Store Definition...................................................................8
' Y6 y3 x0 c/ U! y3 A1 ]+ f2.7.1 VFR Buffer Store Definition.........................................................8
; A# f5 J8 B3 ]! t, G2.7.2 VFR EFI Variable Store Definition.................................................8
0 c7 g5 v6 z! o2.7.3 VFR Variable Name Store Definition.............................................8
' t# o2 m& N" F7 s% ?% m2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
2.10 VFR General Token Definition.................................................................10
) l, _" |8 }) t' Q8 d2.10.1 GUID Definition.......................................................................10
2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
. ]5 s$ i* z6 \( O2.10.4 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
2.11 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
" z3 T/ d; B% A/ K2.11.4 VFR Rule Statement Definition..................................................13
- X# g2 }! [1 ]% S0 N- A2.11.5 VFR Statement Definition.........................................................14
2.11.6 VFR Question Type Statements Definition...................................17
2 [2 }3 b( \6 J: O1 C2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
1 D. A. \5 f: v8 f4 j8 V2.12 VFR Expression Statement Definition.......................................................34
' f' C2 B0 R6 [- ?2.12.1 OR........................................................................................34
: [3 y/ h; I$ `. h4 ?3 f0 ^0 b2.12.2 AND......................................................................................34
* P6 `2 K! o. g& z6 w. m2.12.3 bitwiseor................................................................................34
8 ]3 V/ z* I9 R9 o2.12.4 bitwiseand.............................................................................34
' Z/ G- P+ e! J$ b- W1 h2.12.5 equal.....................................................................................35
7 F8 G* Q; N* u8 _# s2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
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2.12.8 add/minus..............................................................................35
1 [$ F2 y+ W1 Q, Q- X  ^7 M2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
' x- K- ]) M8 B. P0 B$ E# p2.12.11 atom terms............................................................................36