| 1 | # $Id: import_cif.tcl 319 2009-12-04 23:04:04Z toby $ |
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| 2 | |
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| 3 | #------------------------------------------------- |
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| 4 | # define info used in addcmds.tcl |
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| 5 | set description "Crystallographic Information File (CIF)" |
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| 6 | set extensions .cif |
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| 7 | set procname ReadCIFFile |
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| 8 | #------------------------------------------------- |
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| 9 | |
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| 10 | proc ReadCIFFile {filename} { |
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| 11 | global expgui |
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| 12 | set fp [open $filename r] |
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| 13 | pleasewait "Reading CIF file" |
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| 14 | set blocks [ParseCIF $filename] |
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| 15 | if {$blocks == ""} { |
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| 16 | donewait |
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| 17 | MyMessageBox -parent . -type ok -icon warning \ |
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| 18 | -message "Note: no valid CIF blocks were read from file $filename" |
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| 19 | return |
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| 20 | } |
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| 21 | set allblocks {} |
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| 22 | set coordblocks {} |
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| 23 | # search each block for coordinate |
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| 24 | for {set i 1} {$i <= $blocks} {incr i} { |
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| 25 | lappend allblocks $i |
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| 26 | global block$i |
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| 27 | set flag 1 |
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| 28 | foreach id {_atom_site_fract_x _atom_site_fract_y _atom_site_fract_z} { |
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| 29 | if {[array name block$i $id] == ""} {set flag 0} |
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| 30 | } |
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| 31 | if $flag {lappend coordblocks $i} |
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| 32 | } |
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| 33 | donewait |
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| 34 | if {$coordblocks == ""} { |
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| 35 | MyMessageBox -parent . -type ok -icon warning \ |
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| 36 | -message "Note: CIF $filename contains no coordinates" |
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| 37 | return |
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| 38 | } |
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| 39 | set expgui(choose) [lindex $coordblocks 0] |
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| 40 | # there is more than one appropriate block |
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| 41 | if {[llength $coordblocks] > 1} { |
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| 42 | catch {destroy .choose} |
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| 43 | toplevel .choose |
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| 44 | wm title .choose "Choose CIF Block" |
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| 45 | bind .choose <Key-F1> "MakeWWWHelp expguierr.html ChooseCIF" |
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| 46 | grid [label .choose.0 -text \ |
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| 47 | "More than one block in CIF $filename\ncontains coordinates.\nSelect the block to use" \ |
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| 48 | ] -row 0 -column 0 -columnspan 2 |
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| 49 | set row 0 |
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| 50 | foreach i $coordblocks { |
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| 51 | incr row |
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| 52 | set name "" |
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| 53 | catch {set name [set block${i}(data_)]} |
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| 54 | grid [radiobutton .choose.$row -value $i \ |
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| 55 | -text "block $i ($name)" -variable expgui(choose)] \ |
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| 56 | -row $row -column 0 -sticky w |
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| 57 | } |
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| 58 | grid [button .choose.browse -text CIF\nBrowser -command \ |
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| 59 | "BrowseCIF [list $allblocks] [list $coordblocks] .choose.cif" \ |
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| 60 | ] -row 1 -rowspan $row -column 1 |
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| 61 | grid [button .choose.ok -text OK -command "destroy .choose"] \ |
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| 62 | -row [incr row] -column 0 -sticky w |
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| 63 | grid [button .choose.help -text Help -bg yellow \ |
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| 64 | -command "MakeWWWHelp expguierr.html ChooseCIF"] \ |
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| 65 | -column 1 -row $row -sticky e |
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| 66 | tkwait window .choose |
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| 67 | } |
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| 68 | |
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| 69 | set i $expgui(choose) |
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| 70 | # get the space group |
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| 71 | set spg {} |
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| 72 | set msg {} |
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| 73 | catch { |
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| 74 | set spg [set block${i}(_symmetry_space_group_name_h-m)] |
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| 75 | regsub -all {'} $spg {} spg |
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| 76 | # see if this space group exists in the table |
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| 77 | set fp [open [file join $expgui(scriptdir) spacegrp.ref] r] |
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| 78 | while {[gets $fp line] >= 0} { |
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| 79 | if {[string trim $spg] == [lindex $line 8]} { |
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| 80 | close $fp |
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| 81 | break |
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| 82 | set fp {} |
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| 83 | } |
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| 84 | } |
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| 85 | if {$fp != ""} { |
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| 86 | close $fp |
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| 87 | set msg "Warning: the Space Group ($spg) may not be correctly specified for GSAS" |
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| 88 | } |
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| 89 | } |
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| 90 | set cell {} |
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| 91 | foreach var {_cell_length_a _cell_length_b _cell_length_c \ |
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| 92 | _cell_angle_alpha _cell_angle_beta _cell_angle_gamma} { |
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| 93 | # leave blank any unspecified data items |
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| 94 | set val {} |
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| 95 | catch {set val [set block${i}($var)]} |
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| 96 | lappend cell [lindex [ParseSU $val] 0] |
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| 97 | } |
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| 98 | |
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| 99 | set atomlist {} |
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| 100 | set lbllist {} |
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| 101 | catch { |
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| 102 | set lbllist [set block${i}(_atom_site_label)] |
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| 103 | } |
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| 104 | set uisolist {} |
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| 105 | catch { |
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| 106 | set uisolist [set block${i}(_atom_site_u_iso_or_equiv)] |
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| 107 | set Uconv 1 |
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| 108 | } |
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| 109 | if {$uisolist == ""} { |
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| 110 | set uisolist [set block${i}(_atom_site_b_iso_or_equiv)] |
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| 111 | set Uconv [expr 1/(8*3.14159*3.14159)] |
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| 112 | } |
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| 113 | set occlist {} |
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| 114 | catch { |
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| 115 | set occlist [set block${i}(_atom_site_occupancy)] |
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| 116 | } |
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| 117 | set typelist {} |
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| 118 | catch { |
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| 119 | set typelist [set block${i}(_atom_site_type_symbol)] |
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| 120 | } |
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| 121 | foreach x [set block${i}(_atom_site_fract_x)] \ |
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| 122 | y [set block${i}(_atom_site_fract_y)] \ |
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| 123 | z [set block${i}(_atom_site_fract_z)] \ |
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| 124 | lbl $lbllist uiso $uisolist occ $occlist type $typelist { |
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| 125 | # should not be any quotes, but remove them, if there are |
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| 126 | foreach var {lbl type} { |
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| 127 | foreach char {' \"} { |
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| 128 | set q {\\} |
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| 129 | append q $char |
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| 130 | set hidden [regsub -all $q [set $var] \200 $var] |
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| 131 | if {[string index [set $var] 0] == $char} { |
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| 132 | regsub -all $char [set $var] {} $var |
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| 133 | } |
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| 134 | if {$hidden} {regsub -all \200 [set $var] $char $var} |
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| 135 | } |
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| 136 | } |
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| 137 | # CIF specifies types as Cu2+; GSAS uses Cu+2 |
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| 138 | if {[regexp {([A-Za-z]+)([1-9])([+-])} $type junk elem sign val]} { |
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| 139 | set type ${elem}${val}$sign |
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| 140 | } |
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| 141 | # if type is missing, attempt to parse an element in the label |
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| 142 | if {$type == "" && $lbl != ""} { |
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| 143 | regexp {[A-Za-z][A-Za-z]?} $lbl type |
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| 144 | } |
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| 145 | # get rid of standard uncertainies |
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| 146 | foreach var {x y z occ uiso} { |
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| 147 | catch { |
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| 148 | set $var [lindex [ParseSU [set $var]] 0] |
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| 149 | } |
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| 150 | } |
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| 151 | # convert Biso to Uiso (if needed) |
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| 152 | if {$Uconv != 1} { |
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| 153 | catch {set $uiso [expr $Uconv*$uiso]} |
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| 154 | } |
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| 155 | lappend atomlist [list $lbl $x $y $z $type $occ $uiso] |
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| 156 | } |
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| 157 | |
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| 158 | # clean up -- get rid of the CIF arrays |
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| 159 | for {set i 1} {$i <= $blocks} {incr i} { |
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| 160 | unset block$i |
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| 161 | } |
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| 162 | return "[list $spg] [list $cell] [list $atomlist] [list $msg]" |
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| 163 | } |
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| 164 | |
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| 165 | # ParseCIF reads and parses a CIF file putting the contents of |
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| 166 | # each block into arrays block1, block2,... in the caller's level |
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| 167 | # the name of the block is saved as blockN(data_) |
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| 168 | # data names and items are saved as blockN(_data_name) = {data item} |
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| 169 | # data items are not reformatted, thus quotes, semicolons & newlines |
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| 170 | # are included in the data item string |
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| 171 | # CIF names are converted to lower case |
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| 172 | # for looped data names, the data items are included in a list: |
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| 173 | # blockN(_cif_name) = {item1 "item2 with spaces" item3 ...} |
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| 174 | # the contents of each loop are saved as blockN(loop_M) |
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| 175 | # |
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| 176 | # The proc returns the number of blocks that have been read or a |
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| 177 | # null string if the file cannot be opened |
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| 178 | # |
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| 179 | # This parser does some error checking [errors are reported in blockN(error)] |
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| 180 | # but the parser could get confused if the CIF has invalid syntax |
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| 181 | # |
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| 182 | proc ParseCIF {filename} { |
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| 183 | if [catch { |
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| 184 | set fp [open $filename r] |
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| 185 | }] {return ""} |
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| 186 | |
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| 187 | set blocks 0 |
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| 188 | set EOF 1 |
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| 189 | set line {} |
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| 190 | set dataname {} |
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| 191 | # line counter (for error messages) |
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| 192 | set linenum 0 |
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| 193 | # this flags where we are w/r a loop_ |
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| 194 | # -1 not in a loop |
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| 195 | # 0 reading a loop header (data names) |
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| 196 | # 1 reading the data items in a loop |
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| 197 | set loopflag -1 |
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| 198 | set loopnum -1 |
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| 199 | # loop over tokens |
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| 200 | while {$EOF} { |
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| 201 | # read the next line, unless we have a holdover from the previous |
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| 202 | if {[string length [string trim $line]] <= 0} { |
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| 203 | incr linenum |
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| 204 | if {[gets $fp line] < 0} {set EOF 0} |
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| 205 | } |
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| 206 | # flag if the string \' has been replaced |
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| 207 | set hidden 0 |
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| 208 | set trimline [string trim $line] |
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| 209 | set firstchar [string index $trimline 0] |
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| 210 | |
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| 211 | if {[string length $trimline] <= 0} { |
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| 212 | # the line is blank |
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| 213 | set line {} |
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| 214 | continue |
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| 215 | } |
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| 216 | |
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| 217 | if {$firstchar == "#"} { |
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| 218 | # this is a comment |
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| 219 | set line {} |
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| 220 | continue |
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| 221 | } |
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| 222 | |
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| 223 | if {[string tolower [string range $trimline 0 4]] == "data_"} { |
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| 224 | # this is the beginning of a data block |
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| 225 | incr blocks |
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| 226 | # are there other tokens on this line? |
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| 227 | if {[set pos [string first { } $trimline]] == -1} { |
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| 228 | set blockname [string range $trimline 5 end] |
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| 229 | set line {} |
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| 230 | } else { |
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| 231 | set blockname [string range $trimline 5 [expr $pos-1]] |
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| 232 | set line [string range $trimline $pos end] |
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| 233 | } |
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| 234 | global block$blocks |
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| 235 | catch {unset block$blocks} |
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| 236 | set block${blocks}(data_) $blockname |
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| 237 | set loopnum -1 |
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| 238 | |
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| 239 | if {$line == ""} continue |
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| 240 | if {$dataname != ""} { |
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| 241 | # this is an error -- data_ block where a data item is expected |
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| 242 | append block${blocks}(errors) "No data item was found for $dataname near line $linenum\n" |
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| 243 | set dataname {} |
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| 244 | } |
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| 245 | } |
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| 246 | |
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| 247 | if {$firstchar == "_"} { |
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| 248 | # this is a cif data name |
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| 249 | if {$dataname != ""} { |
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| 250 | # this is an error -- data name where a data item is expected |
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| 251 | append block${blocks}(errors) "No data item was found for $dataname near line $linenum\n" |
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| 252 | } |
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| 253 | # parse it out & convert it to lower case |
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| 254 | if {[set pos [string first { } $trimline]] == -1} { |
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| 255 | # nothing else is on this line |
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| 256 | set dataname [string tolower $trimline] |
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| 257 | set line {} |
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| 258 | } else { |
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| 259 | # There other tokens on this line |
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| 260 | set dataname [string range $trimline 0 [expr $pos-1]] |
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| 261 | set line [string tolower [string range $trimline $pos end]] |
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| 262 | } |
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| 263 | |
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| 264 | if {$loopflag == 0} { |
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| 265 | # in a loop header, save the names in the loop list |
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| 266 | lappend looplist $dataname |
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| 267 | set block${blocks}(loop_${loopnum}) $looplist |
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| 268 | # clear the array element for the data item |
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| 269 | # -- should not be needed for a valid CIF but if a name is used |
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| 270 | # -- twice in the same block, want to wipe out the 1st data |
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| 271 | catch { |
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| 272 | if {[set block${blocks}($dataname)] != ""} { |
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| 273 | # this is an error -- repeated data name |
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| 274 | append block${blocks}(errors) \ |
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| 275 | "Data item $dataname is repeated near line $linenum\n" |
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| 276 | } |
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| 277 | set block${blocks}($dataname) {} |
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| 278 | } |
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| 279 | set dataname {} |
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| 280 | } elseif {$loopflag > 0} { |
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| 281 | # in a loop body, so the loop is over |
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| 282 | set loopflag -1 |
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| 283 | } |
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| 284 | continue |
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| 285 | } |
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| 286 | |
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| 287 | if {[string tolower [string range $trimline 0 4]] == "loop_"} { |
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| 288 | set loopflag 0 |
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| 289 | incr loopnum |
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| 290 | set looplist {} |
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| 291 | set block${blocks}(loop_${loopnum}) {} |
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| 292 | # save any other tokens on this line |
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| 293 | set line [string range $trimline 5 end] |
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| 294 | continue |
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| 295 | } |
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| 296 | |
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| 297 | # keywords not matched, must be some type of data item |
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| 298 | set item {} |
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| 299 | |
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| 300 | if {[string index $line 0] == ";"} { |
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| 301 | # multiline entry with semicolon termination |
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| 302 | set item $line |
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| 303 | # read lines until we get a naked semicolon |
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| 304 | while {$EOF} { |
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| 305 | incr linenum |
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| 306 | if {[gets $fp line] < 0} {set EOF 0} |
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| 307 | if {[string index $line 0] == ";"} { |
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| 308 | append item "\n;" |
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| 309 | # make sure the line has a blank in front, so |
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| 310 | # a semicolon in col 2 is not treated as a quote character |
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| 311 | set line " [string range $line 1 end]" |
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| 312 | break |
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| 313 | } |
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| 314 | } |
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| 315 | if {[string trim $line] == ""} {set line ""} |
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| 316 | } elseif {$firstchar == {"}} { |
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| 317 | # a quoted string |
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| 318 | # hide any \" sequences in a non-ASCII character (\201) |
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| 319 | set hidden [regsub -all {\\"} $trimline \201 trimline] |
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| 320 | # parse out the quoted string, save the remainder |
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| 321 | if {![regexp {("[^"]*")(.*)} $trimline junk item line]} { |
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| 322 | # this is an error -- no end-quote was found |
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| 323 | set item $line |
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| 324 | set line {} |
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| 325 | append block${blocks}(errors) "The quoted string on line $linenum does not have a close quote ([string trim $item])\n" |
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| 326 | } |
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| 327 | } elseif {$firstchar == {'}} { |
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| 328 | # a quoted string |
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| 329 | # hide any \' sequences in a non-ASCII character (\200) |
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| 330 | set hidden [regsub -all {\\'} $trimline \200 trimline] |
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| 331 | # parse out the quoted string, save the remainder |
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| 332 | if {![regexp {('[^']*')(.*)} $trimline junk item line]} { |
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| 333 | # this is an error -- no end-quote was found |
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| 334 | set item $line |
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| 335 | set line {} |
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| 336 | append block${blocks}(errors) "The quoted string on line $linenum does not have a close quote ([string trim $item])\n" |
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| 337 | } |
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| 338 | } else { |
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| 339 | # must be a single space-delimited value |
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| 340 | set pos [string first { } $trimline] |
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| 341 | if {$pos < 0} { |
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| 342 | # and the only thing left on the line |
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| 343 | set item $trimline |
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| 344 | set line {} |
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| 345 | } else { |
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| 346 | # save the rest of the line |
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| 347 | set line [string range $trimline $pos end] |
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| 348 | incr pos -1 |
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| 349 | set item [string range $trimline 0 $pos] |
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| 350 | } |
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| 351 | } |
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| 352 | |
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| 353 | # a data item has been read |
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| 354 | # fix the hidden characters, if any |
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| 355 | if $hidden { |
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| 356 | regsub -all \200 $item {\\'} item |
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| 357 | regsub -all \201 $item {\\"} item |
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| 358 | } |
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| 359 | |
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| 360 | # store the data item |
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| 361 | if {$loopflag >= 0} { |
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| 362 | # if in a loop, increment the loop element counter to select the |
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| 363 | # appropriate array element |
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| 364 | incr loopflag |
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| 365 | set i [expr ($loopflag - 1) % [llength $looplist]] |
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| 366 | lappend block${blocks}([lindex $looplist $i]) $item |
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| 367 | } elseif {$dataname == ""} { |
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| 368 | # this is an error -- a data item where we do not expect one |
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| 369 | append block${blocks}(errors) "The string \"$item\" on line $linenum was unexpected\n" |
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| 370 | } else { |
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| 371 | catch { |
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| 372 | if {[set block${blocks}($dataname)] != ""} { |
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| 373 | # this is an error -- repeated data name |
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| 374 | append block${blocks}(errors) \ |
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| 375 | "Data item $dataname is repeated near line $linenum\n" |
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| 376 | } |
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| 377 | } |
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| 378 | set block${blocks}($dataname) $item |
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| 379 | set dataname "" |
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| 380 | } |
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| 381 | } |
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| 382 | close $fp |
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| 383 | return $blocks |
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| 384 | } |
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| 385 | |
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| 386 | # this proc creates a hierarchical CIF browser |
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| 387 | # note that the BWidget package is required |
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| 388 | proc BrowseCIF {blocklist "selected {}" "frame .cif"} { |
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| 389 | |
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| 390 | if [catch {package require BWidget}] { |
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| 391 | tk_dialog $frame {No BWidget} \ |
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| 392 | "Sorry, the CIF Browser requires the BWidget package" \ |
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| 393 | warning 0 Continue |
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| 394 | return |
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| 395 | } |
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| 396 | if {$selected == ""} {set selected $blocklist} |
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| 397 | catch {destroy $frame} |
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| 398 | toplevel $frame |
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| 399 | wm title $frame "CIF Browser" |
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| 400 | |
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| 401 | set pw [PanedWindow $frame.pw -side top] |
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| 402 | grid $pw -sticky news -column 0 -row 0 |
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| 403 | grid columnconfigure $frame 0 -weight 1 |
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| 404 | grid rowconfigure $frame 0 -minsize 250 -weight 1 |
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| 405 | |
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| 406 | # create a left hand side pane for the hierarchical tree |
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| 407 | set pane [$pw add -weight 1] |
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| 408 | set sw [ScrolledWindow $pane.lf \ |
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| 409 | -relief sunken -borderwidth 2] |
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| 410 | set tree [Tree $sw.tree \ |
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| 411 | -relief flat -borderwidth 0 -width 15 -highlightthickness 0 \ |
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| 412 | -redraw 1] |
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| 413 | grid $sw |
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| 414 | grid $sw -sticky news -column 0 -row 0 |
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| 415 | grid columnconfigure $pane 0 -minsize 275 -weight 1 |
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| 416 | grid rowconfigure $pane 0 -weight 1 |
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| 417 | $sw setwidget $tree |
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| 418 | |
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| 419 | # create a right hand side pane to show the value |
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| 420 | set pane [$pw add -weight 1] |
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| 421 | set sw [ScrolledWindow $pane.sw \ |
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| 422 | -relief sunken -borderwidth 2] |
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| 423 | pack $sw -fill both -expand yes -side bottom |
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| 424 | set lb [ScrollableFrame::create $sw.lb -width 250] |
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| 425 | $sw setwidget $lb |
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| 426 | |
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| 427 | set num 0 |
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| 428 | foreach n $blocklist { |
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| 429 | global block$n |
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| 430 | # make a list of data names in loops |
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| 431 | set looplist {} |
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| 432 | foreach loop [array names block$n loop_*] { |
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| 433 | eval lappend looplist [set block${n}($loop)] |
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| 434 | } |
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| 435 | # put the block name |
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| 436 | set blockname [set block${n}(data_)] |
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| 437 | set open 0 |
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| 438 | if {[lsearch $selected $n] != -1} {set open 1} |
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| 439 | $tree insert end root block$n -text "_data_$blockname" \ |
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| 440 | -open $open -image [Bitmap::get copy] |
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| 441 | # loop over the names in each block |
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| 442 | foreach name [array names block$n _*] { |
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| 443 | # don't include looped names |
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| 444 | if {[lsearch $looplist $name] == -1} { |
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| 445 | $tree insert end block$n [incr num] -text $name \ |
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| 446 | -image [Bitmap::get folder] -data block$n |
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| 447 | } |
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| 448 | } |
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| 449 | foreach loop [array names block$n loop_*] { |
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| 450 | $tree insert end block$n block${n}$loop -text $loop \ |
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| 451 | -image [Bitmap::get file] -data "block$n loop" |
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| 452 | foreach name [set block${n}($loop)] { |
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| 453 | $tree insert end block${n}$loop [incr num] -text $name \ |
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| 454 | -image [Bitmap::get folder] -data "block$n $loop" |
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| 455 | } |
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| 456 | } |
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| 457 | foreach name [array names block$n errors] { |
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| 458 | $tree insert end block$n [incr num] -text $name \ |
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| 459 | -image [Bitmap::get undo] -data block$n |
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| 460 | } |
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| 461 | } |
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| 462 | $tree bindImage <1> "showCIFvalue $tree $sw" |
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| 463 | $tree bindText <1> "showCIFvalue $tree $sw" |
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| 464 | grid [button $frame.c -text Close -command "destroy $frame"] -column 0 -row 1 |
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| 465 | } |
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| 466 | |
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| 467 | # used in BrowseCIF in response to the spinbox |
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| 468 | # show the contents of a loop |
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| 469 | proc ShowLoopVar {array loop frame sb} { |
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| 470 | global $array |
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| 471 | set looplist [set ${array}($loop)] |
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| 472 | set index [$sb getvalue] |
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| 473 | set i 0 |
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| 474 | foreach var $looplist { |
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| 475 | incr i |
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| 476 | [$frame.$i getframe].l config \ |
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| 477 | -text [lindex [set ${array}($var)] $index] |
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| 478 | } |
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| 479 | } |
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| 480 | |
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| 481 | # used in BrowseCIF in response to the clicking on a CIF dataname |
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| 482 | # shows the contents data name or a loop |
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| 483 | proc showCIFvalue {tree sw name} { |
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| 484 | set data [$tree itemcget $name -data] |
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| 485 | set text [$tree itemcget $name -text] |
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| 486 | |
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| 487 | # delete old contents of frame |
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| 488 | set frame [$sw.lb getframe] |
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| 489 | eval destroy [grid slaves $frame] |
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| 490 | # reset the scrollbars |
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| 491 | $sw.lb xview moveto 0 |
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| 492 | $sw.lb yview moveto 0 |
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| 493 | # leave room for a scrollbar |
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| 494 | grid columnconfig $frame 0 -minsize [expr \ |
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| 495 | [winfo width [winfo parent $frame]] - 20] |
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| 496 | if {$data == ""} { |
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| 497 | return |
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| 498 | } |
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| 499 | |
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| 500 | # |
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| 501 | if {[llength $data] == 2} { |
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| 502 | global [lindex $data 0] |
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| 503 | if {[lindex $data 1] == "loop"} { |
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| 504 | set looplist [set [lindex $data 0]($text)] |
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| 505 | # get number of elements for first name |
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| 506 | set names [llength [set [lindex $data 0]([lindex $looplist 0])]] |
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| 507 | set sb $frame.spin |
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| 508 | grid [SpinBox $sb -range "1 $names 1" \ |
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| 509 | -label "Loop\nelement #" -labelwidth 10 -width 10 \ |
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| 510 | -command "ShowLoopVar [lindex $data 0] $text $frame $sb" \ |
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| 511 | -modifycmd "ShowLoopVar [lindex $data 0] $text $frame $sb"] \ |
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| 512 | -column 0 -row 0 -sticky w |
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| 513 | set i 0 |
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| 514 | foreach var $looplist { |
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| 515 | incr i |
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| 516 | grid [TitleFrame $frame.$i -text $var -side left] \ |
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| 517 | -column 0 -row $i -sticky ew |
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| 518 | pack [label [$frame.$i getframe].l -anchor w -justify left] -side left |
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| 519 | } |
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| 520 | ShowLoopVar [lindex $data 0] $text $frame $sb |
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| 521 | } else { |
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| 522 | grid [TitleFrame $frame.0 -text $text -side left] \ |
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| 523 | -column 0 -row 0 -sticky ew |
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| 524 | set row 0 |
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| 525 | set frame0 [$frame.0 getframe] |
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| 526 | grid columnconfig $frame0 2 -weight 1 |
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| 527 | foreach name [set [lindex $data 0]($text)] { |
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| 528 | incr row |
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| 529 | grid [label $frame0.a$row -justify left -text $row]\ |
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| 530 | -sticky w -column 0 -row $row |
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| 531 | grid [label $frame0.b$row -bd 2 -relief groove \ |
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| 532 | -justify left -anchor w -text $name]\ |
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| 533 | -sticky new -column 1 -row $row |
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| 534 | } |
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| 535 | } |
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| 536 | } else { |
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| 537 | # unlooped data name |
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| 538 | global [lindex $data 0] |
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| 539 | grid [TitleFrame $frame.0 -text $text -side left] \ |
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| 540 | -column 0 -row 0 -sticky ew |
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| 541 | pack [label [$frame.0 getframe].l -anchor w -justify left\ |
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| 542 | -text [set ${data}($text)]] -side left |
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| 543 | } |
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| 544 | } |
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| 545 | |
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| 546 | # Parse a number in CIF, that may include a SU (ESD) value |
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| 547 | # note that this routine will ignore spaces, quotes & semicolons |
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| 548 | proc ParseSU {value} { |
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| 549 | # if there is no SU just return the value |
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| 550 | if {[string first "(" $value] == -1} { |
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| 551 | return $value |
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| 552 | } |
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| 553 | # is there a decimal point? |
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| 554 | if [regexp {([-+]?[0-9]*\.)([0-9]*)\(([0-9]+)\)} $value junk a b err] { |
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| 555 | set ex [string length $b] |
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| 556 | return [list ${a}${b} [expr {pow(10.,-$ex)*$err}]] |
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| 557 | } |
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| 558 | if [regexp {([-+]?[0-9]*)\(([0-9]+)\)} $value junk a err] { |
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| 559 | return [list ${a} $err] |
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| 560 | } |
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| 561 | tk_dialog .err {ParseSU Error} \ |
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| 562 | "ParseSU: Error processing value $value" \ |
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| 563 | warning 0 Continue |
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| 564 | } |
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| 565 | |
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| 566 | # a stand-alone routine for testing. Select, read and browse a CIF |
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| 567 | proc Read_BrowseCIF {} { |
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| 568 | global tcl_platform |
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| 569 | if {$tcl_platform(platform) == "windows"} { |
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| 570 | set filetypelist { |
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| 571 | {"CIF files" .CIF} {"All files" *} |
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| 572 | } |
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| 573 | } else { |
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| 574 | set filetypelist { |
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| 575 | {"CIF files" .CIF} {"CIF files" .cif} {"All files" *} |
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| 576 | } |
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| 577 | } |
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| 578 | set file [tk_getOpenFile -parent . -filetypes $filetypelist] |
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| 579 | if {$file == ""} return |
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| 580 | if {![file exists $file]} return |
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| 581 | # plasewait and donewait are defined in gsascmds.tcl and may not be present |
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| 582 | catch {pleasewait "Reading CIF file"} |
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| 583 | set blocks [ParseCIF $file] |
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| 584 | if {$blocks == ""} { |
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| 585 | donewait |
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| 586 | MessageBox -parent . -type ok -icon warning \ |
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| 587 | -message "Note: no valid CIF blocks were read from file $filename" |
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| 588 | return |
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| 589 | } |
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| 590 | catch {donewait} |
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| 591 | set allblocks {} |
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| 592 | for {set i 1} {$i <= $blocks} {incr i} { |
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| 593 | lappend allblocks $i |
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| 594 | } |
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| 595 | if {$allblocks != ""} { |
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| 596 | BrowseCIF $allblocks "" .cif |
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| 597 | # wait for the window to close |
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| 598 | tkwait window .cif |
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| 599 | } else { |
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| 600 | puts "no blocks read" |
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| 601 | } |
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| 602 | # clean up -- get rid of the CIF arrays |
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| 603 | for {set i 1} {$i <= $blocks} {incr i} { |
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| 604 | global block$i |
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| 605 | unset block$i |
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| 606 | } |
|---|
| 607 | } |
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