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

bini

Contents
; \# C* R1 a4 Y2 n4 [1 Introduction.....................................................................................................1
5 c4 y$ r" Z" M: J8 B$ E! o& W1.1 Overview..............................................................................................1
1.2 Target Audience.....................................................................................1
. u+ p4 }6 ^$ I2 K1.3 Related Information................................................................................1
# {+ ?4 N1 H$ W2 [1.4 Terms...................................................................................................1
2 VFR Description in BNF......................................................................................3
" M! W5 U5 s3 x1 b, V6 s' q! r6 V1 e2 u2.1 VFR Programming Keywords....................................................................3
2.1.1 // (comment marker).................................................................3
+ A# q9 @$ u$ l3 H# B; D2.1.2 #define...................................................................................4
" G0 C4 ~) Z- T, O0 K' a2.1.3 #include..................................................................................4
2.2 VFR Program.........................................................................................4
# |& G. k2 ^( _1 x0 w) w2.3 VFR Data Struct Definition.......................................................................5
4 w; ~' Y( P0 I. S/ |# i2.4 VFR FormSet Definition...........................................................................6
2.5 VFR FormSet List Definition.....................................................................7
  L% ?. _: l+ u9 ]2.6 VFR Default Stores Definition...................................................................7
( l" l3 \* G9 j' @, i2.7 VFR Variable Store Definition...................................................................8
2.7.1 VFR Buffer Store Definition.........................................................8
2.7.2 VFR EFI Variable Store Definition.................................................8
" C1 a) }. L  t0 f4 O2.7.3 VFR Variable Name Store Definition.............................................8
0 e. I4 w& j5 q* n* z3 N2.8 VFR FormSet DisableIf Definition..............................................................9
2.9 VFR FormSet SuppressIf Definition............................................................9
' n1 ~# V+ L) ?6 q* W: Y* f2.10 VFR General Token Definition.................................................................10
2.10.1 GUID Definition.......................................................................10
# I5 X2 {, c9 x+ }3 |2.10.2 String & String Identifier Definition............................................10
2.10.3 Number Definition...................................................................10
2.10.4 VFR Statement Header Definition...............................................10
/ C' \! w  p7 W8 n. H; ~3 U2.10.5 VFR Question Header Definition.................................................11
) A; p2 o* _7 _1 F2.10.6 VFR Constant Value Definition...................................................11
- K8 o4 Y1 u6 `; M0 q2.10.7 VFR Statement Image & Locked Tag Definition............................12
2.11 VFR Form Definition..............................................................................12
2.11.1 VFR Form Map Definition..........................................................13
+ _: h, m1 a- @2.11.2 VFR Image Statement Definition................................................13
7 g( i! I2 R( I; Y2.11.3 VFR Locked Statement Definition...............................................13
2.11.4 VFR Rule Statement Definition..................................................13
6 n) d4 w4 E. i3 ], B' \# s2.11.5 VFR Statement Definition.........................................................14
2.11.6 VFR Question Type Statements Definition...................................17
3 d6 k" L4 h2 _. _2.11.7 VFR Conditional Type Statements Definition................................32
: E# F: H& W% f% i2 i" e% ?5 n2.11.8 VFR GUID Statement Definition.................................................33
% a2 t) V% M3 ]# I% n- ?2.12 VFR Expression Statement Definition.......................................................34
2.12.1 OR........................................................................................34
2.12.2 AND......................................................................................34
2.12.3 bitwiseor................................................................................34
( s7 [( f$ F( Z) c2.12.4 bitwiseand.............................................................................34
% s6 L4 L& n: k( j7 \( J( `& J0 k2.12.5 equal.....................................................................................35
2.12.6 compare................................................................................35
2.12.7 shift......................................................................................35
iii
2.12.8 add/minus..............................................................................35
2.12.9 multiply/divide/modulo............................................................36
$ h2 T4 C) n  q+ ]1 V! r* j# s. }2.12.10 cast terms..............................................................................36
2.12.11 atom terms............................................................................36