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foxrefsearch.prg
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* Abstract...:
* Main engine for searching files.
* Many of these methods are overridden
* for specific file types.
*
* Changes....:
*
#include "foxref.h"
#include "foxpro.h"
DEFINE CLASS RefSearch AS Custom
Name = "RefSearch"
* this is a reference to the engine object (see FoxMatch.prg) that
* searches a text string -- for example, it could be replaced
* with a regular expression search engine.
oSearchEngine = .NULL.
oEngineController = .NULL.
* set to true to not allow this filetype to refreshed (must always re-search)
NoRefresh = .F.
* comma-delimited list of file extensions to backup -- override in subclasses
* set to empty string to not backup at all
BackupExtensions = .NULL.
IncludeDefTable = .T.
FormProperties = .T.
CodeOnly = .F.
PreserveCase = .F. && TRUE to preserve case during a Replace operation
Filename = ''
FName = '' && filename w/o path
Folder = '' && folder file is in
Pattern = ''
Comments = COMMENTS_INCLUDE
FileTimeStamp = .NULL.
FileID = ''
SetID = ''
RefID = ''
ReplaceLog = ''
* if an error occurs in a TRY/CATCH, then store it to this property
oErr = .NULL.
* used internally to track when we need to create a new
* unique RefID. Each reference that appears on the
* same line gets the same RefID.
nLastLineNo = -1
cLastProcName = ''
cLastClassName = ''
cLastFilename = ''
nMatchCnt = 0
* text of the file we opened
cFileText = ''
lDefinitionsOnly = .F.
cExtendedPropertyText = REPLICATE(CHR(1), 517)
PROCEDURE Init()
SET TALK OFF
SET DELETED ON
THIS.SetID = SYS(2015) && unique ID
THIS.FileTimeStamp = DATETIME()
ENDPROC
PROCEDURE Destroy()
ENDPROC
FUNCTION OpenFile(lReadWrite)
LOCAL oException
m.oException = .NULL.
IF FILE(THIS.Filename)
TRY
THIS.cFileText = FILETOSTR(THIS.Filename)
CATCH TO oException
ENDTRY
ENDIF
RETURN m.oException
ENDFUNC
FUNCTION CloseFile
THIS.cFileText = ''
ENDFUNC
* Create a backup of the file
* nBackupStyle: 1 = filename.ext.bak 2 = Backup of filename.ext
FUNCTION BackupFile(cFilename, nBackupStyle)
LOCAL cBackupFile
LOCAL cFileToBackup
LOCAL lSuccess
LOCAL cExt
LOCAL i
LOCAL nCnt
LOCAL cSafety
LOCAL oErr
LOCAL ARRAY aExtensions[1]
IF EMPTY(THIS.BackupExtensions)
RETURN .T.
ENDIF
m.lSuccess = .T.
IF VARTYPE(m.cFilename) <> 'C' OR EMPTY(m.cFilename)
m.cFilename = THIS.Filename
ENDIF
m.cSafety = SET("SAFETY")
SET SAFETY OFF
IF ISNULL(THIS.BackupExtensions)
* assume it's a text file and we only have one file to backup
m.cBackupFile = THIS.CreateBackupFilename(m.cFilename, m.nBackupStyle)
TRY
COPY FILE (m.cFilename) TO (m.cBackupFile)
CATCH TO oErr
m.lSuccess = .F.
ENDTRY
ELSE
m.nCnt = ALINES(m.aExtensions, THIS.BackupExtensions, .T., ',')
FOR m.i = 1 TO m.nCnt
IF !EMPTY(m.aExtensions[i])
m.cFileToBackup = FORCEEXT(m.cFilename, m.aExtensions[i])
m.cBackupFile = THIS.CreateBackupFilename(m.cFileToBackup, m.nBackupStyle)
IF FILE(m.cFileToBackup) AND !EMPTY(m.cBackupFile)
TRY
COPY FILE (m.cFileToBackup) TO (m.cBackupFile)
CATCH TO oErr
m.lSuccess = .F.
ENDTRY
ENDIF
ENDIF
ENDFOR
ENDIF
SET SAFETY &cSafety
RETURN m.lSuccess
ENDFUNC
* nBackupStyle: 1 = filename.ext.bak 2 = Backup of filename.ext
PROTECTED FUNCTION CreateBackupFilename(cFilename, nBackupStyle)
DO CASE
CASE m.nBackupStyle == 1 && filename.ext.bak
m.cFilename = m.cFilename + '.' + BACKUP_EXTENSION
CASE m.nBackupStyle == 2 && "Backup of filename.ext"
m.cFilename = ADDBS(JUSTPATH(m.cFilename)) + BACKUP_PREFIX_LOC + ' ' + JUSTFNAME(m.cFilename)
OTHERWISE && same as style = 1
m.cFilename = m.cFilename + '.' + BACKUP_EXTENSION
ENDCASE
RETURN m.cFilename
ENDFUNC
PROCEDURE SetTimeStamp()
TRY
THIS.FileTimeStamp = FDATE(THIS.Filename, 1)
CATCH
THIS.FileTimeStamp = DATETIME()
ENDTRY
ENDFUNC
* Generate a FoxPro 3.0-style row timestamp
PROTECTED FUNCTION RowTimeStamp(tDateTime)
LOCAL cTimeValue
IF VARTYPE(m.tDateTime) <> 'T'
m.tDateTime = DATETIME()
m.cTimeValue = TIME()
ELSe
m.cTimeValue = TTOC(m.tDateTime, 2)
ENDIF
RETURN ((YEAR(m.tDateTime) - 1980) * 2 ** 25);
+ (MONTH(m.tDateTime) * 2 ** 21);
+ (DAY(m.tDateTime) * 2 ** 16);
+ (VAL(LEFTC(m.cTimeValue, 2)) * 2 ** 11);
+ (VAL(SUBSTRC(m.cTimeValue, 4, 2)) * 2 ** 5);
+ VAL(RIGHTC(m.cTimeValue, 2))
ENDFUNC
* -- This is the method that should get overridden
FUNCTION DoSearch()
RETURN THIS.FindInText(THIS.cFileText, FINDTYPE_TEXT, '', '', SEARCHTYPE_NORMAL)
ENDFUNC
* -- Abstract method for parsing symbol definitions
* -- out of a file
FUNCTION DoDefinitions()
ENDFUNC
* do a replacement on text
FUNCTION DoReplace(cReplaceText, oReplaceCollection)
LOCAL cCodeBlock
LOCAL oException
LOCAL oFoxRefRecord
LOCAL i
m.oException = .NULL.
m.cCodeBlock = THIS.cFileText
FOR m.i = oReplaceCollection.Count TO 1 STEP -1
oFoxRefRecord = oReplaceCollection.Item(m.i)
m.cCodeBlock = THIS.ReplaceText(m.cCodeBlock, oFoxRefRecord.LineNo, oFoxRefRecord.ColPos, oFoxRefRecord.MatchLen, m.cReplaceText, oFoxRefRecord.Abstract)
ENDFOR
TRY
IF ISNULL(m.cCodeBlock)
THROW ERROR_REPLACE_LOC
ELSE
IF (STRTOFILE(m.cCodeBlock, THIS.Filename) == 0)
THROW ERROR_WRITE_LOC
ENDIF
ENDIF
CATCH TO oException
ENDTRY
RETURN m.oException
ENDFUNC
* return what to add to the replace log
FUNCTION DoReplaceLog(cReplaceText, oReplaceCollection)
RETURN ''
ENDFUNC
* add an error in the FoxRef cursor
FUNCTION AddError(cErrorMsg)
IF SEEK(REFTYPE_INACTIVE, "FoxRefCursor", "RefType")
REPLACE ;
SetID WITH THIS.SetID, ;
RefID WITH SYS(2015), ;
RefType WITH REFTYPE_ERROR, ;
FileID WITH THIS.FileID, ;
Symbol WITH '', ;
ClassName WITH '', ;
ProcName WITH '', ;
ProcLineNo WITH 0, ;
LineNo WITH 0, ;
ColPos WITH 0, ;
MatchLen WITH 0, ;
Abstract WITH m.cErrorMsg, ;
RecordID WITH '', ;
UpdField WITH '', ;
Checked WITH .F., ;
NoReplace WITH .F., ;
TimeStamp WITH DATETIME(), ;
Inactive WITH .F. ;
IN FoxRefCursor
ELSE
INSERT INTO FoxRefCursor ( ;
UniqueID, ;
SetID, ;
RefID, ;
RefType, ;
FileID, ;
Symbol, ;
ClassName, ;
ProcName, ;
ProcLineNo, ;
LineNo, ;
ColPos, ;
MatchLen, ;
Abstract, ;
RecordID, ;
UpdField, ;
Checked, ;
NoReplace, ;
Timestamp, ;
Inactive ;
) VALUES ( ;
SYS(2015), ;
THIS.SetID, ;
SYS(2015), ;
REFTYPE_ERROR, ;
THIS.FileID, ;
'', ;
'', ;
'', ;
0, ;
0, ;
0, ;
0, ;
m.cErrorMsg, ;
'', ;
'', ;
.F., ;
.F., ;
DATETIME(), ;
.F. ;
)
ENDIF
ENDFUNC
FUNCTION AddMatch(cFindType, cClassName, cProcName, nProcLineNo, nLineNo, nColPos, nMatchLen, cCode, cRecordID, cUpdField, lNoReplace)
LOCAL cSymbol
LOCAL ARRAY aPropInfo[1]
THIS.nMatchCnt = THIS.nMatchCnt + 1
IF THIS.nLastLineNo <> nLineNo OR !(THIS.cLastProcName == cProcName) OR !(THIS.cLastClassName == cClassName) OR !(THIS.cLastFilename == THIS.Filename)
THIS.RefID = SYS(2015)
ENDIF
* if it's a property and occured in an extended property (multi-line property), then get the symbol
IF m.cFindType == FINDTYPE_PROPERTYVALUE AND m.nProcLineNo > 1
IF ALINES(aPropInfo, m.cCode) >= m.nProcLineNo
m.cSymbol = SUBSTRC(aPropInfo[m.nProcLineNo], m.nColPos, m.nMatchLen)
ELSE
m.cSymbol = SUBSTRC(m.cCode, m.nColPos, m.nMatchLen)
ENDIF
ELSE
m.cSymbol = SUBSTRC(m.cCode, m.nColPos, m.nMatchLen)
ENDIF
SELECT FoxRefCursor
IF SEEK(REFTYPE_INACTIVE, "FoxRefCursor", "RefType")
REPLACE ;
SetID WITH THIS.SetID, ;
RefID WITH THIS.RefID, ;
RefType WITH REFTYPE_RESULT, ;
FindType WITH m.cFindtype, ;
FileID WITH THIS.FileID, ;
Symbol WITH cSymbol, ;
ClassName WITH m.cClassName, ;
ProcName WITH m.cProcName, ;
ProcLineNo WITH m.nProcLineNo, ;
LineNo WITH m.nLineNo, ;
ColPos WITH m.nColPos, ;
MatchLen WITH m.nMatchLen, ;
Abstract WITH m.cCode, ;
RecordID WITH m.cRecordID, ;
UpdField WITH m.cUpdField, ;
Checked WITH .F., ;
NoReplace WITH m.lNoReplace, ;
TimeStamp WITH THIS.FileTimeStamp, ;
Inactive WITH .F. ;
IN FoxRefCursor
ELSE
INSERT INTO FoxRefCursor ( ;
UniqueID, ;
SetID, ;
RefID, ;
RefType, ;
FindType, ;
FileID, ;
Symbol, ;
ClassName, ;
ProcName, ;
ProcLineNo, ;
LineNo, ;
ColPos, ;
MatchLen, ;
Abstract, ;
RecordID, ;
UpdField, ;
Checked, ;
NoReplace, ;
Timestamp, ;
Inactive ;
) VALUES ( ;
SYS(2015), ;
THIS.SetID, ;
THIS.RefID, ;
REFTYPE_RESULT, ;
m.cFindType, ;
THIS.FileID, ;
m.cSymbol, ;
m.cClassName, ;
m.cProcName, ;
m.nProcLineNo, ;
m.nLineNo, ;
m.nColPos, ;
m.nMatchLen, ;
m.cCode, ;
m.cRecordID, ;
m.cUpdField, ;
.F., ;
m.lNoReplace, ;
THIS.FileTimeStamp, ;
.F. ;
)
ENDIF
THIS.nLastLineNo = m.nLineNo
THIS.cLastProcName = m.cProcName
THIS.cLastClassName = m.cClassName
THIS.cLastFilename = THIS.Filename
ENDFUNC
FUNCTION AddDefinition(cSymbol, cDefType, cClassName, cProcName, nProcLineNo, nLineNo, cCode, lIncludeFile)
m.cSymbol = UPPER(m.cSymbol)
IF !m.lIncludeFile
* if definition name doesn't begin with an underscore or Alpha character
* then assume it's not a valid symbol name
*ZAP@241119
*IF !ISALPHA(m.cSymbol) AND LEFTC(m.cSymbol, 1) <> '_'
IF !ISALPHA(LTRIM(m.cSymbol)) AND LEFTC(LTRIM(m.cSymbol), 1) <> '_'
RETURN .F.
ENDIF
* remove any memory variable designations
IF LEFTC(m.cSymbol, 2) == "M."
m.cSymbol = SUBSTRC(m.cSymbol, 3)
IF EMPTY(m.cSymbol)
RETURN .F.
ENDIF
ENDIF
ENDIF
THIS.nMatchCnt = THIS.nMatchCnt + 1
IF THIS.nLastLineNo <> nLineNo OR !(THIS.cLastProcName == cProcName) OR !(THIS.cLastClassName == cClassName) OR !(THIS.cLastFilename == THIS.Filename)
THIS.RefID = SYS(2015)
ENDIF
*ZAP@241119
IF SEEK(.T., "FoxDefCursor", "Inactive")
REPLACE ;
DefType WITH m.cDefType, ;
FileID WITH THIS.FileID, ;
Symbol WITH m.cSymbol, ;
ClassName WITH m.cClassName, ;
ProcName WITH m.cProcName, ;
ProcLineNo WITH m.nProcLineNo, ;
LineNo WITH m.nLineNo, ;
Abstract WITH IIF(TYPE("m.pcSymbol") != "U" AND INLIST(ALLTRIM(m.pcSymbol), "IF", "ELSE", "ENDIF"), m.cCode, THIS.StripTabs(m.cCode)), ;
Inactive WITH .F. ;
IN FoxDefCursor
ELSE
INSERT INTO FoxDefCursor ( ;
UniqueID, ;
DefType, ;
FileID, ;
Symbol, ;
ClassName, ;
ProcName, ;
ProcLineNo, ;
LineNo, ;
Abstract, ;
Inactive ;
) VALUES ( ;
SYS(2015), ;
m.cDefType, ;
THIS.FileID, ;
m.cSymbol, ;
m.cClassName, ;
m.cProcName, ;
m.nProcLineNo, ;
m.nLineNo, ;
IIF(TYPE("m.pcSymbol") != "U" AND INLIST(ALLTRIM(m.pcSymbol), "IF", "ELSE", "ENDIF"), m.cCode, THIS.StripTabs(m.cCode)), ;
.F. ;
)
ENDIF
THIS.nLastLineNo = m.nLineNo
THIS.cLastProcName = m.cProcName
THIS.cLastClassName = m.cClassName
THIS.cLastFilename = THIS.Filename
RETURN .T.
ENDFUNC
* Add a file to process -- usually when we encounter
* #include files while we're processing definitions
FUNCTION AddFileToProcess(cDefType, cFilename, cClassName, cProcName, nProcLineNo, nLineNo, cCode)
IF LEFTC(m.cFilename, 1) == '"'
m.cFilename = SUBSTRC(m.cFilename, 2)
ENDIF
IF RIGHTC(m.cFilename, 1) == '"'
m.cFilename = LEFTC(m.cFilename, LENC(m.cFilename) - 1)
ENDIF
IF VARTYPE(THIS.oEngineController) == 'O'
THIS.oEngineController.AddFileToProcess(m.cFilename)
ENDIF
THIS.AddDefinition(m.cFilename, m.cDefType, m.cClassName, m.cProcName, m.nProcLineNo, m.nLineNo, m.cCode, .T.)
ENDFUNC
FUNCTION AddFileToSearch(cFilename)
IF VARTYPE(THIS.oEngineController) == 'O'
THIS.oEngineController.AddFileToSearch(m.cFilename)
ENDIF
ENDFUNC
FUNCTION ProcessDefinitions(oEngineController)
IF VARTYPE(m.oEngineController) == 'O'
THIS.oEngineController = m.oEngineController
ENDIF
THIS.DoDefinitions()
THIS.oEngineController = .NULL.
ENDFUNC
* Returns the FileAction ('N' = Processed w/o Definitions, 'D' = Processed w/definitions, 'E' = Error, 'S' = Stop immediately)
FUNCTION SearchFor(cPattern, lSearch, lDefinitions, oEngineController)
LOCAL cFileAction && file action to return
LOCAL oException
LOCAL nSelect
m.nSelect = SELECT()
IF VARTYPE(m.oEngineController) == 'O'
THIS.oEngineController = m.oEngineController
ENDIF
IF VARTYPE(m.cPattern) == 'C'
THIS.Pattern = m.cPattern
ENDIF
IF PCOUNT() < 3
m.lDefinitions = THIS.IncludeDefTable
ENDIF
m.cFileAction = ''
THIS.FName = JUSTFNAME(THIS.Filename)
THIS.Folder = JUSTPATH(THIS.Filename)
THIS.nMatchCnt = 0
IF THIS.oSearchEngine.SetPattern(THIS.Pattern)
m.oException = THIS.OpenFile()
IF ISNULL(m.oException)
TRY
IF m.lDefinitions
THIS.nLastLineNo = -1
THIS.DoDefinitions()
m.cFileAction = FILEACTION_DEFINITIONS
ENDIF
IF lSearch AND !EMPTY(m.cPattern) && if no search pattern passed, then only do definitions
THIS.nLastLineNo = -1
IF !THIS.DoSearch()
m.cFileAction = FILEACTION_STOP
ENDIF
ENDIF
THIS.CloseFile()
IF THIS.nMatchCnt == 0 AND !(m.cFileAction == FILEACTION_STOP)
IF SEEK(REFTYPE_INACTIVE, "FoxRefCursor", "RefType")
REPLACE ;
SetID WITH THIS.SetID, ;
RefID WITH SYS(2015), ;
RefType WITH REFTYPE_NOMATCH, ;
FileID WITH THIS.FileID, ;
Symbol WITH '', ;
ClassName WITH '', ;
ProcName WITH '', ;
ProcLineNo WITH 0, ;
LineNo WITH 0, ;
ColPos WITH 0, ;
MatchLen WITH 0, ;
Abstract WITH '', ;
RecordID WITH '', ;
UpdField WITH '', ;
Checked WITH .F., ;
NoReplace WITH .F., ;
TimeStamp WITH THIS.FileTimeStamp, ;
Inactive WITH .F. ;
IN FoxRefCursor
ELSE
* no matches, but still record that we searched this file
INSERT INTO FoxRefCursor ( ;
UniqueID, ;
SetID, ;
RefID, ;
RefType, ;
FileID, ;
Symbol, ;
ClassName, ;
ProcName, ;
ProcLineNo, ;
LineNo, ;
ColPos, ;
MatchLen, ;
Abstract, ;
RecordID, ;
UpdField, ;
Checked, ;
NoReplace, ;
Timestamp, ;
Inactive ;
) VALUES ( ;
SYS(2015), ;
THIS.SetID, ;
SYS(2015), ;
REFTYPE_NOMATCH, ;
THIS.FileID, ;
'', ;
'', ;
'', ;
0, ;
0, ;
0, ;
0, ;
'', ;
'', ;
'', ;
.F., ;
.F., ;
THIS.FileTimeStamp, ;
.F. ;
)
ENDIF
ENDIF
CATCH TO oException
* error is recorded below
ENDTRY
ENDIF
IF VARTYPE(oException) == 'O'
THIS.AddError(IIF(EMPTY(m.oException.UserValue), m.oException.Message, m.oException.UserValue))
m.cFileAction = FILEACTION_ERROR
ENDIF
ELSE
* unable to set the pattern
m.cFileAction = FILEACTION_STOP
ENDIF
THIS.oEngineController = .NULL.
SELECT (m.nSelect)
RETURN m.cFileAction
ENDFUNC
* this is what FoxRefEngine calls to do the replacements
FUNCTION ReplaceWith(cReplaceText, oReplaceCollection, cFilename) AS Boolean
LOCAL lSuccess
LOCAL nSelect
LOCAL oException
THIS.Filename = m.cFilename
m.nSelect = SELECT()
m.oException = THIS.OpenFile(.T.)
IF ISNULL(m.oException)
TRY
m.oException = THIS.DoReplace(m.cReplaceText, m.oReplaceCollection)
CATCH TO m.oException
ENDTRY
THIS.ReplaceLog = THIS.DoReplaceLog(m.cReplaceText, m.oReplaceCollection)
THIS.CloseFile()
ENDIF
SELECT (m.nSelect)
RETURN m.oException
ENDFUNC
* take the original text, determine the case,
* and apply it the new text
FUNCTION SetCasePreservation(cOriginalText, cReplacementText)
LOCAL i
LOCAL ch
LOCAL lLower
LOCAL lUpper
IF ISUPPER(LEFTC(m.cOriginalText, 1)) AND ISLOWER(SUBSTRC(m.cOriginalText, 2, 1))
* proper case
m.cReplacementText = PROPER(m.cReplacementText)
ELSE
m.lLower = .F.
m.lUpper = .F.
FOR m.i = 1 TO LENC(m.cOriginalText)
ch = SUBSTRC(m.cOriginalText, m.i, 1)
DO CASE
CASE BETWEEN(ch, 'A', 'Z')
m.lUpper = .T.
CASE BETWEEN(ch, 'a', 'z')
m.lLower = .T.
ENDCASE
IF m.lLower AND m.lUpper
EXIT
ENDIF
ENDFOR
DO CASE
CASE m.lLower AND !m.lUpper
m.cReplacementText = LOWER(m.cReplacementText)
CASE !m.lLower AND m.lUpper
m.cReplacementText = UPPER(m.cReplacementText)
ENDCASE
ENDIF
RETURN m.cReplacementText
ENDFUNC
* perform a replacement on text
* NOTE: cOldCode contains the original text as it was when we original searched, but we don't use it here anymore
FUNCTION ReplaceText(cCodeBlock, nLineNo, nColPos, nMatchLen, cNewText, cOldCode)
LOCAL nLineCnt
LOCAL i
LOCAL lSuccess
LOCAL cOriginalText
LOCAL cReplacementText
LOCAL ARRAY aCodeList[1]
IF ISNULL(cCodeBlock)
RETURN .NULL.
ENDIF
m.lSuccess = .F.
m.cReplacementText = m.cNewText
IF m.nLineNo == 0
IF THIS.PreserveCase
m.cOriginalText = SUBSTRC(m.cCodeBlock, m.nColPos, m.nMatchLen)
m.cNewText = THIS.SetCasePreservation(m.cOriginalText, m.cReplacementText)
ENDIF
m.cCodeBlock = LEFTC(m.cCodeBlock, m.nColPos - 1) + m.cNewText + IIF(m.nColPos + m.nMatchLen > LENC(m.cCodeBlock), '', SUBSTRC(m.cCodeBlock, m.nColPos + m.nMatchLen))
m.lSuccess = .T.
ELSE
m.nLineCnt = ALINES(m.aCodeList, m.cCodeBlock, .F.)
IF m.nLineNo <= m.nLineCnt
IF THIS.PreserveCase
m.cOriginalText = SUBSTRC(m.aCodeList[m.nLineNo], m.nColPos, m.nMatchLen)
m.cNewText = THIS.SetCasePreservation(m.cOriginalText, m.cReplacementText)
ENDIF
m.aCodeList[m.nLineNo] = LEFTC(m.aCodeList[m.nLineNo], m.nColPos - 1) + m.cNewText + IIF(m.nColPos + m.nMatchLen > LENC(m.aCodeList[m.nLineNo]), '', SUBSTRC(m.aCodeList[m.nLineNo], m.nColPos + m.nMatchLen))
m.cCodeBlock = ''
FOR m.i = 1 TO nLineCnt
m.cCodeBlock = m.cCodeBlock + IIF(m.i == 1, '', CHR(13) + CHR(10)) + m.aCodeList[m.i]
ENDFOR
m.lSuccess = .T.
ENDIF
ENDIF
IF !m.lSuccess
m.cCodeBlock = .NULL.
ENDIF
RETURN m.cCodeBlock
ENDFUNC
* -- This is the meat of our find. Searches through text or code
FUNCTION FindInCode(cTextBlock, cFindType, cClassName, cObjName, nSearchType, cRecordID, cUpdField, lNoReplace)
LOCAL i
LOCAL nSelect
LOCAL nLineCnt
LOCAL cProcName
LOCAL nProcLineNo
LOCAL cFirstChar
LOCAL nOffset
LOCAL lFound
LOCAL nCommentPos
LOCAL lExitLine
LOCAL nWordNum
LOCAL cFirstWord
LOCAL lComment
LOCAL nMatchCnt
LOCAL nLastLineNo
LOCAL nMatchIndex
LOCAL oMatch
LOCAL lMethodName
LOCAL lUseMemLines
LOCAL cCodeLine
LOCAL nMemoWidth
LOCAL lCommentAndContinue
LOCAL ARRAY aCodeList[1]
m.nMatchCnt = THIS.oSearchEngine.Execute(m.cTextBlock)
IF m.nMatchCnt <= 0
RETURN (m.nMatchCnt >= 0)
ENDIF
IF VARTYPE(m.cClassName) <> 'C'
m.cClassName = ''
ENDIF
IF VARTYPE(m.cObjName) <> 'C'
m.cObjName = ''
ENDIF
IF m.nSearchType == SEARCHTYPE_METHOD && search in method code of .vcx or .scx
m.nOffset = -1
ELSE
m.nOffset = 0
ENDIF
* this is the UNIQUEID field from a form or class library
IF VARTYPE(m.cRecordID) <> 'C'
m.cRecordID = ''
ENDIF
IF VARTYPE(m.cUpdField) <> 'C'
m.cUpdField = ''
ENDIF
m.cProcName = ''
m.nProcLineNo = 0
m.lComment = .F.
m.lCommentAndContinue = .F.
m.nSelect = SELECT()
nMatchIndex = 1
* ALINES should be faster, but we can't use that if
* there are more than 65k lines in the code block
m.lUseMemLines = .F.
TRY
m.nLineCnt = ALINES(aCodeList, m.cTextBlock, .F.)
CATCH
m.lUseMemLines = .T.
ENDTRY
IF m.lUseMemLines
m.nMemoWidth = SET("MEMOWIDTH")
SET MEMOWIDTH TO 8192
m.nLineCnt = MEMLINES(m.cTextBlock)
_MLINE = 0
ENDIF
m.nLastLineNo = MIN(THIS.oSearchEngine.oMatches(m.nMatchCnt).MatchLineNo, m.nLineCnt)
FOR m.i = 1 TO m.nLastLineNo
IF m.lUseMemLines
m.cCodeLine = MLINE(m.cTextBlock, 1, _MLINE)
ELSE
m.cCodeLine = aCodeList[m.i]
ENDIF
m.lMethodName = .F.
* get first word
m.nWordNum = 1
m.cFirstWord = UPPER(GETWORDNUM(m.cCodeLine, m.nWordNum, WORD_DELIMITERS))
IF m.lCommentAndContinue
* since the last line was a comment line and also
* was a continuation line, then this is a comment line
m.lComment = .T.
ELSE
m.lComment = m.cFirstWord = '*' OR (m.cFirstWord = ("&" + "&")) OR m.cFirstWord == "NOTE"
ENDIF
IF (m.lComment AND THIS.Comments == COMMENTS_EXCLUDE)
m.nProcLineNo = m.nProcLineNo + 1
* if this line was a comment line and also
* was a continuation line, then the next line
* is also a comment
m.lCommentAndContinue = m.lComment AND RIGHTC(RTRIM(m.cCodeLine), 1) == ';'
LOOP
ENDIF
IF !m.lComment AND LENC(m.cFirstWord) >= 4 AND INLIST(m.cFirstWord, 'E', 'H', 'P', 'F', 'L', 'D')
IF "PROTECTED" = m.cFirstWord OR "HIDDEN" = m.cFirstWord
m.nWordNum = m.nWordNum + 1
m.cFirstWord = UPPER(GETWORDNUM(m.cCodeLine, m.nWordNum, WORD_DELIMITERS))
ENDIF
DO CASE
CASE "PROCEDURE" = m.cFirstWord
m.cProcName = GETWORDNUM(m.cCodeLine, m.nWordNum + 1, METHOD_DELIMITERS)
m.nProcLineNo = 0
m.lMethodName = .T.
CASE "FUNCTION" = cFirstWord
m.cProcName = GETWORDNUM(m.cCodeLine, m.nWordNum + 1, METHOD_DELIMITERS)
m.nProcLineNo = 0
CASE "ENDFUNC" = m.cFirstWord
m.cProcName = ''
m.nProcLineNo = 0
CASE "ENDPROC" = m.cFirstWord
m.cProcName = ''
m.nProcLineNo = 0
CASE "DEFINE" = m.cFirstWord
m.cSecondWord = UPPER(GETWORDNUM(m.cCodeLine, m.nWordNum + 1, WORD_DELIMITERS))
IF LENC(m.cSecondWord) >= 4 AND "CLASS" = m.cSecondWord
m.cClassName = GETWORDNUM(m.cCodeLine, m.nWordNum + 2, WORD_DELIMITERS)
m.cProcName = ''
m.nProcLineNo = 0
ENDIF
CASE "ENDDEFINE" = m.cFirstWord
m.cClassName = ''
m.cProcName = ''
m.nProcLineNo = 0
ENDCASE
ENDIF
m.nProcLineNo = m.nProcLineNo + 1
IF THIS.Comments == COMMENTS_EXCLUDE OR THIS.Comments == COMMENTS_ONLY
m.nCommentPos = AT_C('&' + '&', m.cCodeLine)
* if this line was a comment line and also
* was a continuation line, then the next line
* is also a comment
m.lCommentAndContinue = m.nCommentPos > 0 AND RIGHTC(RTRIM(m.cCodeLine), 1) == ';'
ELSE
m.nCommentPos = 0
ENDIF
FOR m.j = m.nMatchIndex TO m.nMatchCnt
oMatch = THIS.oSearchEngine.oMatches(m.j)
IF oMatch.MatchLineNo == m.i
IF (THIS.Comments == COMMENTS_EXCLUDE AND m.nCommentPos > 0 AND oMatch.MatchPos >= m.nCommentPos)
EXIT
ENDIF
IF THIS.Comments <> COMMENTS_ONLY OR m.lComment OR (m.nCommentPos > 0 AND oMatch.MatchPos >= m.nCommentPos)
THIS.AddMatch( ;
m.cFindType, ;
m.cClassName, ;
m.cObjName + IIF(EMPTY(m.cObjName) OR EMPTY(m.cProcName), '', '.') + m.cProcName, ;
IIF(nSearchType == SEARCHTYPE_EXPR, 0, m.nProcLineNo + m.nOffset), ;
IIF(nSearchType == SEARCHTYPE_EXPR, 0, m.i), ;
oMatch.MatchPos, ;
oMatch.MatchLen, ;
m.cCodeLine, ;
m.cRecordID, ;
IIF(m.lMethodName, "METHODNAME", m.cUpdField), ;
IIF(m.lMethodName, .T., m.lNoReplace) ;
)
ENDIF
ELSE
IF oMatch.MatchLineNo > m.i
EXIT
ENDIF
ENDIF
m.nMatchIndex = m.nMatchIndex + 1
ENDFOR
ENDFOR
IF m.lUseMemLines
SET MEMOWIDTH TO (m.nMemoWidth)
ENDIF
SELECT (m.nSelect)
ENDFUNC
* -- This searches a text block, assuming it's NOT code so there's
* -- no reason to locate comments, entering & exiting procedures, etc
FUNCTION FindInText(cTextBlock, cFindType, cClassName, cObjName, nSearchType, cRecordID, cUpdField, lNoReplace)
LOCAL i
LOCAL nSelect
LOCAL nLineCnt
LOCAL lUseMemLines
LOCAL nMemoWidth
LOCAL ARRAY aCodeList[1]
m.nSelect = SELECT()
IF VARTYPE(m.cClassName) <> 'C'
m.cClassName = ''
ENDIF
IF VARTYPE(m.cObjName) <> 'C'
m.cObjName = ''
ENDIF