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

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Contents
6 j5 p$ S7 h. s. n# P1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
+ h0 z' q  N' D9 W1.2 Target Audience.....................................................................................1
" U3 ^9 q" X! ?4 P% d1.3 Related Information................................................................................1
4 b# z: ]- z  m9 c# l1 L1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
2.1 VFR Programming Keywords....................................................................3
3 N3 z7 c7 F. E" X2.1.1 // (comment marker).................................................................3
+ S0 s; r7 Q) g/ j$ v7 r0 l7 \0 Z2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
9 P  X% a" M1 [; s% d& ]7 |2.2 VFR Program.........................................................................................4
2 S* ^+ ?/ O1 [- L; f9 w6 w+ E! h2.3 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
) J/ z3 X2 E' k9 I8 [2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
& v; G/ i3 S9 u- ?" T2.7.2 VFR EFI Variable Store Definition.................................................8
2.7.3 VFR Variable Name Store Definition.............................................8
! R" `/ k# P: H& c2.8 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
6 X" U8 Q5 }8 `# c" ]2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
2.10.5 VFR Question Header Definition.................................................11
' I0 u; Q: L0 y- Z. Z, U3 g2.10.6 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
. X: D& ~4 A6 Y- }* J/ \2.11.2 VFR Image Statement Definition................................................13
2.11.3 VFR Locked Statement Definition...............................................13
$ Z1 @" d- j; ]: ]8 }3 D: {* G% h2.11.4 VFR Rule Statement Definition..................................................13
2.11.5 VFR Statement Definition.........................................................14
  R2 O" U; {. F8 f  y" q, T2.11.6 VFR Question Type Statements Definition...................................17
2.11.7 VFR Conditional Type Statements Definition................................32
2.11.8 VFR GUID Statement Definition.................................................33
) ]0 o  u0 E* E- @; h2.12 VFR Expression Statement Definition.......................................................34
5 E9 o) P5 V( s: {; d2 _2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
3 B7 j4 F/ P) I, h+ D2.12.4 bitwiseand.............................................................................34
- z0 Z2 Q) l6 @1 i2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
& k' u( A' D- }& D2.12.7 shift......................................................................................35
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, s5 [# R' ]/ W2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36