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

bini

Contents
1 Introduction.....................................................................................................1
1.1 Overview..............................................................................................1
- F' T" h- Z' P1.2 Target Audience.....................................................................................1
" @" \. {8 K- ~- |( c; n. D1.3 Related Information................................................................................1
+ B4 L! H" X8 @' O. Y/ A1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
9 _  M5 ^/ ]4 [9 x8 {" r2.1 VFR Programming Keywords....................................................................3
. [& X; k* H" V1 f" s, x5 Y' \2.1.1 // (comment marker).................................................................3
2.1.2 #define...................................................................................4
2.1.3 #include..................................................................................4
/ a! }) a" P! u" ^4 o& c4 i" a2.2 VFR Program.........................................................................................4
" k" ^' M# q( N0 D) f2.3 VFR Data Struct Definition.......................................................................5
2.4 VFR FormSet Definition...........................................................................6
- R# B  Q, B9 Z1 k2.5 VFR FormSet List Definition.....................................................................7
. T5 a8 }- X" E2 {2.6 VFR Default Stores Definition...................................................................7
4 f+ _8 H: ^) F% x2 c2.7 VFR Variable Store Definition...................................................................8
" P6 i/ U" Y! q$ R( D' O2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
7 [/ A9 t/ w* B0 m) W6 T& \2.7.3 VFR Variable Name Store Definition.............................................8
2.8 VFR FormSet DisableIf Definition..............................................................9
- q2 W  _+ n# x! `2.9 VFR FormSet SuppressIf Definition............................................................9
0 L6 D/ `5 A; c0 y4 w' ~2.10 VFR General Token Definition.................................................................10
9 F0 t1 i1 M. D+ T2.10.1 GUID Definition.......................................................................10
5 Y$ N# i7 r- B2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
7 o0 S' b- n4 @( K! J' C9 R$ q7 U2.10.4 VFR Statement Header Definition...............................................10
$ v2 j) b* q6 O+ d) x) _) J2.10.5 VFR Question Header Definition.................................................11
2.10.6 VFR Constant Value Definition...................................................11
2.10.7 VFR Statement Image & Locked Tag Definition............................12
$ I! f3 e, a. f/ I4 S& S2.11 VFR Form Definition..............................................................................12
0 k% Y/ S' w' ], h  x2.11.1 VFR Form Map Definition..........................................................13
2.11.2 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
2.11.6 VFR Question Type Statements Definition...................................17
/ _; {1 C  \' v, \0 D2.11.7 VFR Conditional Type Statements Definition................................32
0 `& W- @+ }: L+ g& W" U2.11.8 VFR GUID Statement Definition.................................................33
" x9 P  e+ H5 i- T2.12 VFR Expression Statement Definition.......................................................34
$ y9 A. {" |" {) A: r2.12.1 OR........................................................................................34
2 q9 t3 \) R% @5 D. }8 s2.12.2 AND......................................................................................34
- d/ b' y- W5 x2.12.3 bitwiseor................................................................................34
2.12.4 bitwiseand.............................................................................34
2.12.5 equal.....................................................................................35
& j6 E- J! [; G2 G* Y! J2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
9 [3 j$ t* T5 O2 Y4 Z/ N2 ^2 aiii
7 H) G6 C- x9 B/ G* Z2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
+ l" T/ `7 W# P- m2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36