<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE script:module PUBLIC "-//OpenOffice.org//DTD OfficeDocument 1.0//EN" "module.dtd">
-<script:module xmlns:script="http://openoffice.org/2000/script" script:name="Main" script:language="StarBasic">' SuperbChemistry version 2.2
-' http://mattmccutchen.net/schem/
-' Written and maintained by Matt McCutchen <matt@mattmccutchen.net>
-'
-' Applies superscript and subscript formatting to chemical formulas in
-' OpenOffice.org Writer documents.
-'
-' Rules:
-' - Quantities [0-9]+ and charges [0-9]*[-+−] are recognized after an element
-' symbol [A-Z][a-z]? or a closing delimiter [\])}] . Hyphens are converted
-' into real minus signs.
-' - A charge sign [-+−] is ignored if it is followed by a letter, digit,
-' opening delimiter, or [<>] . (Charges should appear only at the end of a
-' formula, and we want to avoid matching ordinary hyphens in text.)
-' - When digits followed by a charge sign are recognized, the last digit
-' becomes part of the charge and the remaining digits become the quantity.
-' (Charges rarely have absolute value more than 9.)
-' - In cases like X2-, we have to guess whether the digit is an atom/group
-' quantity or a charge amount. We guess atom/group quantity if X is H (NH4+),
-' O (NO3-), a halogen (SbF6-, AlCl4-, etc.), or a closing parenthesis
-' (Fe(OH)2+; the group likely would not have been parenthesized unless it had
-' a quantity). Otherwise we guess charge amount (Fe3+). This heuristic
-' should be right most of the time.
-'
-' Examples:
-' C12345 ==> C_{12345}
-' H+ ==> H^+
-' Cl- ==> Cl^-
-' Fe3+ ==> Fe^{3+}
-' SO42- ==> SO_4^{2-}
-' C1232+ ==> C_{123}^{2+}
-' N3- ==> N^{3-}
-' N|_3^- not recognized (| represents "no-width no break")
-' NH4+ ==> NH_4^+
-' NO3- ==> NO_3^-
-' AlCl4- => AlCl_4^-
-' Fe(OH)2+ ==> Fe(OH)_2^+
-' O12 ==> O_{12}
-' y4- not recognized
-' x2 not recognized
-' Foo2 not recognized
-' TI-89 not recognized
-'
-' To format the current document, run the FormatDocument macro: go to Tools ->
-' Macros -> Run Macro... -> My Macros -> SuperbChemistry -> Main ->
-' FormatDocument -> Run. I realize that this is ugly. I tried to make the
-' package install a menu item to format the document, but the resulting package
-' caused OpenOffice.org to crash regularly (I didn't investigate why), so I
-' abandoned that idea. Note that you can add a menu item as a user
-' customization (Tools -> Customize), and I recommend it if you plan to use
-' SuperbChemistry frequently.
-'
-' FormatDocument uses a sequence of regular expression find-and-replace
-' operations since that was easy to implement and makes the rules easy to
-' change. The operations appear in the undo history, so you can undo a
-' formatting run by undoing the block of "Replace" entries at the top of the
-' history.
-'
-' I would like to support formatting a selection, but the OpenOffice.org API
-' does not appear to support replace-all within a selection. I could find
-' within the selection and implement the replacing myself, but that is more
-' work than I want to do.
-'
-' If SuperbChemistry makes a mistake (e.g., recognizes a "formula" that isn't
-' or formats a formula incorrectly), you can correct the formatting yourself
-' and prevent future runs of the macro from recognizing the offending text by
-' inserting a "No-width no break" character in the middle of it. This character
-' is available in the "Insert -> Formatting Mark" menu when "Tools -> Options ->
-' Language Settings -> Languages -> Enhanced language support ->
-' Enabled for complex text layout (CTL)" is enabled.
-
-' ==============================================================================
-
-' Regular expression replace in the document,
-' creating superscripts if superb > 0 or subscripts if superb < 0.
-' Used by FormatDocument.
-sub SuperbReplace(doc as object, searchStr as string, replaceStr as string, superb as integer)
-
-dim rd as object
-rd = doc.createReplaceDescriptor()
-
-rd.SearchCaseSensitive = true
-rd.SearchRegularExpression = true
-rd.setSearchString(searchStr)
-rd.setReplaceString(replaceStr)
-
-if superb <> 0 then
- dim replaceAttrs(1) as new com.sun.star.beans.PropertyValue
- replaceAttrs(0).Name = "CharEscapement"
- if superb > 0 then
- replaceAttrs(0).Value = 33
- else
- replaceAttrs(0).Value = -9
- end if
- replaceAttrs(1).Name = "CharEscapementHeight"
- replaceAttrs(1).Value = 58
- rd.setReplaceAttributes(replaceAttrs)
-end if
-
-doc.replaceAll(rd)
-
-end sub
-
-' Formats the current document
-sub FormatDocument
-
-' Idiom: Match something and tag it on the left or right with @x@
-' for further processing. If the replacement text could use
-' backreferences, this would be easier. (I think backreferences were added
-' since I originally wrote this code, but I see no need to rewrite it to take
-' advantage of them. - Matt 2008-10-26)
-
-' Tag candidate charges following symbols or ), but not in compound words, etc.
-' Acceptable next character. (Has to be before end of line to avoid matching @g@ tag itself.)
-SuperbReplace(ThisComponent, "([A-Z][a-z]?|[\])}])[0-9]*[-+−][^[({A-Za-z0-9<>]", "&@G@", 0)
-' Retag in front.
-SuperbReplace(ThisComponent, ".@G@", "@g@&", 0)
-' End of line.
-SuperbReplace(ThisComponent, "([A-Z][a-z]?|[\])}])[0-9]*[-+−]$", "&@g@", 0)
-
-' Some groups grab a single following digit as a quantity rather than a charge amount.
-' See detailed rationale above.
-SuperbReplace(ThisComponent, "(H|O|F|Cl|Br|I|\))[0-9]", "&@n@", 0)
-
-' Real minus signs in charges.
-SuperbReplace(ThisComponent, "-@g@", "−@g@", 0)
-
-' Make charges: at most one digit.
-SuperbReplace(ThisComponent, "[0-9]?[−+]@g@", "@q@&", 1)
-
-' Remove the O and ) markers in case of O57.
-SuperbReplace(ThisComponent, "@n@", "", 0)
-
-' Tag quantities: as many digits as we can still grab.
-SuperbReplace(ThisComponent, "([A-Z][a-z]?|[\])}])[0-9]+", "&@n@", 0)
-
-' Make quantities.
-SuperbReplace(ThisComponent, "[0-9]+@n@", "&", -1)
-
-' Clean up all markers.
-SuperbReplace(ThisComponent, "@[gGnq]@", "", 0)
-
-end sub
+<script:module xmlns:script="http://openoffice.org/2000/script" script:name="Main" script:language="StarBasic">Option Explicit
+
+Function HaveSelection(doc As Object)
+ Dim sel as Object
+ sel = doc.CurrentController.Selection
+ If sel.Count > 1 Then
+ HaveSelection = True
+ Exit Function
+ End If
+ Dim s0
+ s0 = sel.getByIndex(0)
+ If s0.Text.compareRegionStarts(s0.Start, s0.End) = 0 Then
+ HaveSelection = False
+ Else
+ HaveSelection = True
+ End If
+End Function
+
+' Regular expression replace in the document, creating superscripts if
+' superb > 0 or subscripts if superb < 0.
+Sub SuperbReplace(doc As Object, searchRegex As String, replacePattern As String, superb As Integer)
+
+ Dim rd As Object
+ rd = doc.createReplaceDescriptor()
+
+ rd.SearchCaseSensitive = true
+ rd.SearchRegularExpression = true
+ rd.setSearchString(searchRegex)
+ rd.setReplaceString(replacePattern)
+
+ If superb <> 0 Then
+ Dim replaceAttrs(1) As New com.sun.star.beans.PropertyValue
+ replaceAttrs(0).Name = "CharEscapement"
+ If superb > 0 Then
+ replaceAttrs(0).Value = 33
+ Else
+ ' The default escapement for subscripts is -33, which looked bad to me in
+ ' chemical formulas. This looks better. Modify to your taste.
+ replaceAttrs(0).Value = -9
+ End If
+ replaceAttrs(1).Name = "CharEscapementHeight"
+ replaceAttrs(1).Value = 58
+ rd.setReplaceAttributes(replaceAttrs)
+ End If
+
+ doc.replaceAll(rd)
+
+End Sub
+
+Sub ReplaceInSelection(doc As Object, searchRegex As String, replacePattern As String)
+
+ Dim frame As Object, dispatcher As Object
+ frame = doc.CurrentController.Frame
+ dispatcher = createUnoService("com.sun.star.frame.DispatchHelper")
+
+ Dim args(6) As New com.sun.star.beans.PropertyValue
+ args(0).Name = "SearchItem.AlgorithmType"
+ args(0).Value = 1
+ args(1).Name = "SearchItem.SearchFlags"
+ args(1).Value = &H1800 ' Search in selection
+ args(2).Name = "SearchItem.SearchString"
+ args(2).Value = searchRegex
+ args(3).Name = "SearchItem.ReplaceString"
+ args(3).Value = replacePattern
+ args(4).Name = "SearchItem.Command"
+ args(4).Value = 3
+ args(5).Name = "SearchItem.AlgorithmType2"
+ args(5).Value = 2
+ args(6).Name = "Quiet"
+ args(6).Value = true
+
+ dispatcher.executeDispatch(frame, ".uno:ExecuteSearch", "", 0, args())
+
+End Sub
+
+Global formatSelectionWarningShown As Boolean
+' I haven't found a way to initialize the variable, but it looks like its
+' default value is treated as false in an if statement.
+'formatSelectionWarningShown = False
+
+Sub FormatSelectionOrDocumentDebug()
+ ' Replacing with an empty replacement string triggers a bug in LibreOffice
+ ' (https://bugs.documentfoundation.org/show_bug.cgi?id=136577), so we must
+ ' avoid it. Fortunately, avoiding it is pretty straightforward.
+
+ ' Insert @m@ between an item and a number or charge.
+ If HaveSelection(ThisComponent) Then
+ ' doc.replaceAll is not capable of searching a selection, while the
+ ' dispatch-based replace API uses the current format options in the
+ ' "Find & Replace" dialog and does not let us change them, which means that
+ ' (1) existing settings can break things and (2) we cannot make superscripts
+ ' and subscripts. We do the best we can by using one dispatch-based replace
+ ' to tag all the sequences we want to operate on (which loses the selection in
+ ' OpenOffice anyway) and then proceed with replaceAll calls on the whole
+ ' document, which will only operate on the already tagged sequences.
+ If Not formatSelectionWarningShown Then
+ MsgBox "Due to limitations in the OpenOffice/LibreOffice API, the " & _
+ """Format selection"" command may not process some chemical formulas " & _
+ "in the selection or may apply incorrect formatting if any format " & _
+ "options are active in the ""Find & Replace"" dialog box. If this " & _
+ "happens, just undo the command (if any changes were made), clear the " & _
+ "format options in the ""Find & Replace"" dialog box (focus the " & _
+ """Find"" field, click ""No Format"", and repeat for the ""Replace"" " & _
+ "field), and run ""Format selection"" again." & Chr$(13) & Chr$(13) & _
+ "This message is always shown on the first ""Format selection"" " & _
+ "command in each OpenOffice/LibreOffice session because " & _
+ "SuperbChemistry has no way to detect whether format options are " & _
+ "active in ""Find & Replace"".", _
+ 0, "SuperbChemistry ""Format selection"" notice"
+ formatSelectionWarningShown = True
+ End If
+ ReplaceInSelection(ThisComponent, "(?<=[A-Z][a-z]?|[\])}])[-+−0-9]+", "@m@&")
+ Else
+ SuperbReplace(ThisComponent, "(?<=[A-Z][a-z]?|[\])}])[-+−0-9]+", "@m@&", 0)
+ End If
+
+ ' Insert @c@ after a charge.
+ SuperbReplace(ThisComponent, "(?<=@m@)([0-9]*[-+−])(?=[ \t\])}.,:;?!'""]|$)", "&@c@", 0)
+
+ ' Real minus signs in charges.
+ SuperbReplace(ThisComponent, "-@c@", "−@c@", 0)
+
+ ' Some groups grab a single following digit as a quantity rather than a charge amount.
+ ' Insert @sq@ marker to prevent the charge from grabbing the digit.
+ SuperbReplace(ThisComponent, "(?<=(H|O|F|Cl|Br|I|[\])}])@m@)[0-9]", "&@sq@", 0)
+
+ ' Each charge grabs at most one digit and moves the @c@ in front to prevent the
+ ' quantity from grabbing the digit.
+ SuperbReplace(ThisComponent, "([0-9]?[−+])@c@", "@c@$1", 1)
+
+ ' Remove any @sq@ markers so items can grab all the digits that follow for the quantity.
+ SuperbReplace(ThisComponent, "(.)@sq@", "$1", 0)
+
+ ' At this point, we have only @m@ and @c@ markers left.
+
+ ' Format quantities: as many digits as we can still grab.
+ ' We have to allow @ as a following character for our own @c@ tag.
+ SuperbReplace(ThisComponent, "(?<=@m@)[0-9]+(?=[@A-Z \t\])}.,:;?!'""]|$)", "&", -1)
+
+ ' Clean up @c@ markers. We know there is a charge sign after each.
+ SuperbReplace(ThisComponent, "@c@(.)", "$1", 0)
+
+ ' Clean up @m@ markers. We know there is some character before each.
+ SuperbReplace(ThisComponent, "(.)@m@", "$1", 0)
+
+End Sub
+
+Dim madeChanges As Boolean
+
+Sub UndoListener_undoActionAdded()
+End Sub
+Sub UndoListener_actionUndone()
+End Sub
+Sub UndoListener_actionRedone()
+End Sub
+Sub UndoListener_allActionsCleared()
+End Sub
+Sub UndoListener_redoActionsCleared()
+End Sub
+Sub UndoListener_resetAll()
+End Sub
+Sub UndoListener_enteredContext()
+End Sub
+Sub UndoListener_enteredHiddenContext()
+End Sub
+Sub UndoListener_leftContext()
+ madeChanges = True
+End Sub
+Sub UndoListener_leftHiddenContext()
+End Sub
+Sub UndoListener_cancelledContext()
+End Sub
+
+Sub FormatSelectionOrDocument()
+
+ Dim undoActionName As String
+ If HaveSelection(ThisComponent) Then
+ undoActionName = "SuperbChemistry: Format selection"
+ Else
+ undoActionName = "SuperbChemistry: Format document"
+ End If
+ ThisComponent.UndoManager.enterUndoContext(undoActionName)
+
+ On Error Goto ErrorHandler
+ FormatSelectionOrDocumentDebug
+ On Error Goto 0
+
+ ThisComponent.UndoManager.leaveUndoContext()
+ Exit Sub
+
+ErrorHandler:
+
+ ' If our undo context is nonempty, we want to undo the generated action.
+ ' If not, we do not want to undo as that would undo the user's previous
+ ' action. If we just check whether the title of the last undoable action
+ ' is "SuperbChemistry: Format (selection|document)", that might be wrong if
+ ' the user ran FormatDocument twice in a row: probably unlikely, but the
+ ' completely correct check is not that hard.
+ Dim listener As Object
+ listener = CreateUnoListener("UndoListener_", "com.sun.star.document.XUndoManagerListener")
+ madeChanges = False
+ ThisComponent.UndoManager.addUndoManagerListener(listener)
+ ThisComponent.UndoManager.leaveUndoContext()
+ ThisComponent.UndoManager.removeUndoManagerListener(listener)
+ If madeChanges Then
+ ThisComponent.UndoManager.undo()
+ ThisComponent.UndoManager.clearRedo()
+ End If
+
+ MsgBox "SuperbChemistry encountered an unexpected error:" & Chr$(13) & Chr$(13) & _
+ "Code " & Err & ": " & Error$ & Chr$(13) & Chr$(13) & _
+ "Any changes made so far have been undone." & Chr$(13) & Chr$(13) & _
+ "SuperbChemistry needed to catch the error in order to leave your undo " & _
+ "history in a consistent state. If the problem is reproducible and you " & _
+ "want to see the precise error location, run the FormatDocumentOrSelectionDebug " & _
+ "macro, but be advised that it may generate multiple entries in the undo " & _
+ "history and will not undo them on error.", _
+ 0, "SuperbChemistry internal error"
+ On Error Goto 0
+End Sub
</script:module>
\ No newline at end of file
Matt McCutchen's Web Site / superbchemistry / superbchemistry.git / commitdiff