From dd5427baaf49f8de4355abeb6bc8c6dd14f74e25 Mon Sep 17 00:00:00 2001
From: René 'Necoro' Neumann <necoro@necoro.net>
Date: Wed, 7 Oct 2009 17:05:19 +0200
Subject: Initial check-in of files

---
 .vim/autoload/omni/cpp/items.vim | 660 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 660 insertions(+)
 create mode 100644 .vim/autoload/omni/cpp/items.vim

(limited to '.vim/autoload/omni/cpp/items.vim')

diff --git a/.vim/autoload/omni/cpp/items.vim b/.vim/autoload/omni/cpp/items.vim
new file mode 100644
index 0000000..b943ad4
--- /dev/null
+++ b/.vim/autoload/omni/cpp/items.vim
@@ -0,0 +1,660 @@
+" Description: Omni completion script for cpp files
+" Maintainer:  Vissale NEANG
+" Last Change: 26 sept. 2007
+
+" Build the item list of an instruction
+" An item is an instruction between a -> or . or ->* or .*
+" We can sort an item in different kinds:
+" eg: ((MyClass1*)(pObject))->_memberOfClass1.get()     ->show()
+"     |        cast        |  |    member   | | method |  | method |
+" @return a list of item
+" an item is a dictionnary where keys are:
+"   tokens = list of token
+"   kind = itemVariable|itemCast|itemCppCast|itemTemplate|itemFunction|itemUnknown|itemThis|itemScope
+function! omni#cpp#items#Get(tokens, ...)
+    let bGetWordUnderCursor = (a:0>0)? a:1 : 0
+
+    let result = []
+    let itemsDelimiters = ['->', '.', '->*', '.*']
+
+    let tokens = reverse(omni#cpp#utils#BuildParenthesisGroups(a:tokens))
+
+    " fsm states:
+    "   0 = initial state
+    "   TODO: add description of fsm states
+    let state=(bGetWordUnderCursor)? 1 : 0
+    let item = {'tokens' : [], 'kind' : 'itemUnknown'}
+    let parenGroup=-1
+    for token in tokens
+        if state==0
+            if index(itemsDelimiters, token.value)>=0
+                let item = {'tokens' : [], 'kind' : 'itemUnknown'}
+                let state = 1
+            elseif token.value=='::'
+                let state = 9
+                let item.kind = 'itemScope'
+                " Maybe end of tokens
+            elseif token.kind =='cppOperatorPunctuator'
+                " If it's a cppOperatorPunctuator and the current token is not
+                " a itemsDelimiters or '::' we can exit
+                let state=-1
+                break
+            endif
+        elseif state==1
+            call insert(item.tokens, token)
+            if token.kind=='cppWord'
+                " It's an attribute member or a variable
+                let item.kind = 'itemVariable'
+                let state = 2
+                " Maybe end of tokens
+            elseif token.value=='this'
+                let item.kind = 'itemThis'
+                let state = 2
+                " Maybe end of tokens
+            elseif token.value==')'
+                let parenGroup = token.group
+                let state = 3
+            elseif token.value==']'
+                let parenGroup = token.group
+                let state = 4
+            elseif token.kind == 'cppDigit'
+                let state = -1
+                break
+            endif
+        elseif state==2
+            if index(itemsDelimiters, token.value)>=0
+                call insert(result, item)
+                let item = {'tokens' : [], 'kind' : 'itemUnknown'}
+                let state = 1
+            elseif token.value == '::'
+                call insert(item.tokens, token)
+                " We have to get namespace or classscope
+                let state = 8
+                " Maybe end of tokens
+            else
+                call insert(result, item)
+                let state=-1
+                break
+            endif
+        elseif state==3
+            call insert(item.tokens, token)
+            if token.value=='(' && token.group == parenGroup
+                let state = 5
+                " Maybe end of tokens
+            endif
+        elseif state==4
+            call insert(item.tokens, token)
+            if token.value=='[' && token.group == parenGroup
+                let state = 1
+            endif
+        elseif state==5
+            if token.kind=='cppWord'
+                " It's a function or method
+                let item.kind = 'itemFunction'
+                call insert(item.tokens, token)
+                let state = 2
+                " Maybe end of tokens
+            elseif token.value == '>'
+                " Maybe a cpp cast or template
+                let item.kind = 'itemTemplate'
+                call insert(item.tokens, token)
+                let parenGroup = token.group
+                let state = 6
+            else
+                " Perhaps it's a C cast eg: ((void*)(pData)) or a variable eg:(*pData)
+                let item.kind = omni#cpp#utils#GetCastType(item.tokens)
+                let state=-1
+                call insert(result, item)
+                break
+            endif
+        elseif state==6
+            call insert(item.tokens, token)
+            if token.value == '<' && token.group == parenGroup
+                " Maybe a cpp cast or template
+                let state = 7
+            endif
+        elseif state==7
+            call insert(item.tokens, token)
+            if token.kind=='cppKeyword'
+                " It's a cpp cast
+                let item.kind = omni#cpp#utils#GetCastType(item.tokens)
+                let state=-1
+                call insert(result, item)
+                break
+            else
+                " Template ?
+                let state=-1
+                call insert(result, item)
+                break
+            endif
+        elseif state==8
+            if token.kind=='cppWord'
+                call insert(item.tokens, token)
+                let state = 2
+                " Maybe end of tokens
+            else
+                let state=-1
+                call insert(result, item)
+                break
+            endif
+        elseif state==9
+            if token.kind == 'cppWord'
+                call insert(item.tokens, token)
+                let state = 10
+                " Maybe end of tokens
+            else
+                let state=-1
+                call insert(result, item)
+                break
+            endif
+        elseif state==10
+            if token.value == '::'
+                call insert(item.tokens, token)
+                let state = 9
+                " Maybe end of tokens
+            else
+                let state=-1
+                call insert(result, item)
+                break
+            endif
+        endif
+    endfor
+
+    if index([2, 5, 8, 9, 10], state)>=0
+        if state==5
+            let item.kind = omni#cpp#utils#GetCastType(item.tokens)
+        endif
+        call insert(result, item)
+    endif
+
+    return result
+endfunc
+
+" Resolve type information of items
+" @param namespaces: list of namespaces used in the file
+" @param szCurrentClassScope: the current class scope, only used for the first
+" item to detect if this item is a class member (attribute, method)
+" @param items: list of item, can be an empty list @see GetItemsToComplete
+function! omni#cpp#items#ResolveItemsTypeInfo(contextStack, items)
+    " Note: kind = itemVariable|cCast|cppCast|template|function|itemUnknown|this
+    " For the first item, if it's a variable we try to detect the type of the
+    " variable with the function searchdecl. If it fails, thanks to the
+    " current class scope, we try to detect if the variable is an attribute
+    " member.
+    " If the kind of the item is a function, we have to first check if the
+    " function is a method of the class, if it fails we try to get a match in
+    " the global namespace. After that we get the returned type of the
+    " function.
+    " It the kind is a C cast or C++ cast, there is no problem, it's the
+    " easiest case. We just extract the type of the cast.
+
+    let szCurrentContext = ''
+    let typeInfo = {}
+    " Note: We search the decl only for the first item
+    let bSearchDecl = 1
+    for item in a:items
+        let curItem = item
+        if index(['itemVariable', 'itemFunction'], curItem.kind)>=0
+            " Note: a variable can be : MyNs::MyClass::_var or _var or (*pVar)
+            " or _var[0][0]
+            let szSymbol = s:GetSymbol(curItem.tokens)
+
+            " If we have MyNamespace::myVar
+            " We add MyNamespace in the context stack set szSymbol to myVar
+            if match(szSymbol, '::\w\+$') >= 0
+                let szCurrentContext = substitute(szSymbol, '::\w\+$', '', 'g')
+                let szSymbol = matchstr(szSymbol, '\w\+$')
+            endif
+            let tmpContextStack = a:contextStack
+            if szCurrentContext != ''
+                let tmpContextStack = [szCurrentContext] + a:contextStack
+            endif
+
+            if curItem.kind == 'itemVariable'
+                let typeInfo = s:GetTypeInfoOfVariable(tmpContextStack, szSymbol, bSearchDecl)
+            else
+                let typeInfo = s:GetTypeInfoOfReturnedType(tmpContextStack, szSymbol)
+            endif
+
+        elseif curItem.kind == 'itemThis'
+            if len(a:contextStack)
+                let typeInfo = omni#cpp#utils#CreateTypeInfo(substitute(a:contextStack[0], '^::', '', 'g'))
+            endif
+        elseif curItem.kind == 'itemCast'
+            let typeInfo = omni#cpp#utils#CreateTypeInfo(s:ResolveCCast(curItem.tokens))
+        elseif curItem.kind == 'itemCppCast'
+            let typeInfo = omni#cpp#utils#CreateTypeInfo(s:ResolveCppCast(curItem.tokens))
+        elseif curItem.kind == 'itemScope'
+            let typeInfo = omni#cpp#utils#CreateTypeInfo(substitute(s:TokensToString(curItem.tokens), '\s', '', 'g'))
+        endif
+
+        if omni#cpp#utils#IsTypeInfoValid(typeInfo)
+            let szCurrentContext = omni#cpp#utils#GetTypeInfoString(typeInfo)
+        endif
+        let bSearchDecl = 0
+    endfor
+
+    return typeInfo
+endfunc
+
+" Get symbol name
+function! s:GetSymbol(tokens)
+    let szSymbol = ''
+    let state = 0
+    for token in a:tokens
+        if state == 0
+            if token.value == '::'
+                let szSymbol .= token.value
+                let state = 1
+            elseif token.kind == 'cppWord'
+                let szSymbol .= token.value
+                let state = 2
+                " Maybe end of token
+            endif
+        elseif state == 1
+            if token.kind == 'cppWord'
+                let szSymbol .= token.value
+                let state = 2
+                " Maybe end of token
+            else
+                " Error
+                break
+            endif
+        elseif state == 2
+            if token.value == '::'
+                let szSymbol .= token.value
+                let state = 1
+            else
+                break
+            endif
+        endif
+    endfor
+    return szSymbol
+endfunc
+
+" Search a declaration.
+" eg: std::map
+" can be empty
+" Note: The returned type info can be a typedef
+" The typedef resolution is done later
+" @return
+"   - a dictionnary where keys are
+"       - type: the type of value same as type()
+"       - value: the value
+function! s:GetTypeInfoOfVariable(contextStack, szVariable, bSearchDecl)
+    let result = {}
+
+    if a:bSearchDecl
+        " Search type of declaration
+        "let result = s:SearchTypeInfoOfDecl(a:szVariable)
+        let result = s:SearchDecl(a:szVariable)
+    endif
+
+    if result=={}
+        let szFilter = "index(['m', 'v'], v:val.kind[0])>=0"
+        let tagItem = s:ResolveSymbol(a:contextStack, a:szVariable, szFilter)
+        if tagItem=={}
+            return result
+        endif
+
+        let szCmdWithoutVariable = substitute(omni#cpp#utils#ExtractCmdFromTagItem(tagItem), '\C\<'.a:szVariable.'\>.*', '', 'g')
+        let tokens = omni#cpp#tokenizer#Tokenize(omni#cpp#utils#GetCodeFromLine(szCmdWithoutVariable))
+        let result = omni#cpp#utils#CreateTypeInfo(omni#cpp#utils#ExtractTypeInfoFromTokens(tokens))
+        " TODO: Namespace resolution for result
+
+        if result != {} && result.value==''
+            " result.value==''
+            " eg: 
+            " struct
+            " {
+            " }gVariable;
+            if has_key(tagItem, 'typeref')
+                " Maybe the variable is a global var of an
+                " unnamed class, struct or union.
+                " eg:
+                " 1)
+                " struct
+                " {
+                " }gVariable;
+                " In this case we need the tags (the patched version)
+                " Note: We can have a named type like this:
+                " 2)
+                " class A
+                " {
+                " }gVariable;
+                if s:IsUnnamedType(tagItem)
+                    " It's an unnamed type we are in the case 1)
+                    let result = omni#cpp#utils#CreateTypeInfo(tagItem)
+                else
+                    " It's not an unnamed type we are in the case 2)
+
+                    " eg: tagItem.typeref = 'struct:MY_STRUCT::MY_SUBSTRUCT'
+                    let szTypeRef = substitute(tagItem.typeref, '^\w\+:', '', '')
+
+                    " eg: szTypeRef = 'MY_STRUCT::MY_SUBSTRUCT'
+                    let result = omni#cpp#utils#CreateTypeInfo(szTypeRef)
+                endif
+            endif
+        endif
+    endif
+    return result
+endfunc
+
+" Get the type info string from the returned type of function
+function! s:GetTypeInfoOfReturnedType(contextStack, szFunctionName)
+    let result = {}
+
+    let szFilter = "index(['f', 'p'], v:val.kind[0])>=0"
+    let tagItem = s:ResolveSymbol(a:contextStack, a:szFunctionName, szFilter)
+
+    if tagItem != {}
+        let szCmdWithoutVariable = substitute(omni#cpp#utils#ExtractCmdFromTagItem(tagItem), '\C\<'.a:szFunctionName.'\>.*', '', 'g')
+        let tokens = omni#cpp#tokenizer#Tokenize(omni#cpp#utils#GetCodeFromLine(szCmdWithoutVariable))
+        let result = omni#cpp#utils#CreateTypeInfo(omni#cpp#utils#ExtractTypeInfoFromTokens(tokens))
+        " TODO: Namespace resolution for result
+        return result
+    endif
+    return result
+endfunc
+
+" Resolve a symbol, return a tagItem
+" Gets the first symbol found in the context stack
+function! s:ResolveSymbol(contextStack, szSymbol, szTagFilter)
+    let tagItem = {}
+    for szCurrentContext in a:contextStack
+        if szCurrentContext != '::'
+            let szTagQuery = substitute(szCurrentContext, '^::', '', 'g').'::'.a:szSymbol
+        else
+            let szTagQuery = a:szSymbol
+        endif
+
+        let tagList = omni#common#utils#TagListNoThrow('^'.szTagQuery.'$')
+        call filter(tagList, a:szTagFilter)
+        if len(tagList)
+            let tagItem = tagList[0]
+            break
+        endif
+    endfor
+    return tagItem
+endfunc
+
+" Return if the tag item represent an unnamed type
+function! s:IsUnnamedType(tagItem)
+    let bResult = 0
+    if has_key(a:tagItem, 'typeref')
+        " Note: Thanks for __anon !
+        let bResult = match(a:tagItem.typeref, '\C\<__anon') >= 0
+    endif
+    return bResult
+endfunc
+
+" Search the declaration of a variable and return the type info
+function! s:SearchTypeInfoOfDecl(szVariable)
+    let szReVariable = '\C\<'.a:szVariable.'\>'
+
+    let originalPos = getpos('.')
+    let origPos = originalPos[1:2]
+    let curPos = origPos
+    let stopPos = origPos
+    
+    while curPos !=[0,0]
+        " We go to the start of the current scope
+        let curPos = searchpairpos('{', '', '}', 'bW', g:omni#cpp#utils#expIgnoreComments)
+        if curPos != [0,0]
+            let matchPos = curPos
+            " Now want to search our variable but we don't want to go in child
+            " scope
+            while matchPos != [0,0]
+                let matchPos = searchpos('{\|'.szReVariable, 'W', stopPos[0])
+                if matchPos != [0,0]
+                    " We ignore matches under comment
+                    if omni#cpp#utils#IsCursorInCommentOrString()
+                        continue
+                    endif
+
+                    " Getting the current line
+                    let szLine = getline('.')
+                    if match(szLine, szReVariable)>=0
+                        " We found our variable
+                        " Check if the current instruction is a decl instruction
+                        let tokens = omni#cpp#utils#TokenizeCurrentInstruction()
+                        let szTypeInfo = s:ExtractTypeInfoFromDecl(tokens)
+                        if szTypeInfo != ''
+                            call setpos('.', originalPos)
+                            return omni#cpp#utils#CreateTypeInfo(szTypeInfo)
+                        endif
+                    else
+                        " We found a child scope, we don't want to go in, thus
+                        " we search for the end } of this child scope
+                        let bracketEnd = searchpairpos('{', '', '}', 'nW', g:omni#cpp#utils#expIgnoreComments)
+                        if bracketEnd == [0,0]
+                            break
+                        endif
+
+                        if bracketEnd[0] >= stopPos[0]
+                            " The end of the scope is after our cursor we stop
+                            " the search
+                            break
+                        else
+                            " We move the cursor and continue to search our
+                            " variable
+                            call setpos('.', [0, bracketEnd[0], bracketEnd[1], 0])
+                        endif
+                    endif
+                endif
+            endwhile
+
+            " Backing to the start of the scope
+            call setpos('.', [0,curPos[0], curPos[1], 0])
+            let stopPos = curPos
+        endif
+    endwhile
+
+    let result = {}
+    if s:LocalSearchDecl(a:szVariable)==0 && !omni#cpp#utils#IsCursorInCommentOrString()
+        let tokens = omni#cpp#utils#TokenizeCurrentInstruction()
+        let szTypeInfo = s:ExtractTypeInfoFromDecl(tokens)
+        if szTypeInfo != ''
+            let result = omni#cpp#utils#CreateTypeInfo(szTypeInfo)
+        endif
+    endif
+
+    call setpos('.', originalPos)
+
+    return result
+endfunc
+
+" Search a declaration
+" @return
+"   - tokens of the current instruction if success
+"   - empty list if failure
+function! s:SearchDecl(szVariable)
+    let result = {}
+    let originalPos = getpos('.')
+    let searchResult = s:LocalSearchDecl(a:szVariable)
+    if searchResult==0
+        " searchdecl() may detect a decl if the variable is in a conditional
+        " instruction (if, elseif, while etc...)
+        " We have to check if the detected decl is really a decl instruction
+        let tokens = omni#cpp#utils#TokenizeCurrentInstruction()
+
+        for token in tokens
+            " Simple test
+            if index(['if', 'elseif', 'while', 'for', 'switch'], token.value)>=0
+                " Invalid declaration instruction
+                call setpos('.', originalPos)
+                return result
+            endif
+        endfor
+
+        let szTypeInfo = s:ExtractTypeInfoFromDecl(tokens)
+        if szTypeInfo != ''
+            let result = omni#cpp#utils#CreateTypeInfo(szTypeInfo)
+        endif
+    endif
+    call setpos('.', originalPos)
+    return result
+endfunc
+
+" Extract the type info string from an instruction.
+" We use a small parser to extract the type
+" We parse the code according to a C++ BNF from: http://www.nongnu.org/hcb/#basic.link
+" @param tokens: token list of the current instruction
+function! s:ExtractTypeInfoFromDecl(tokens)
+    return omni#cpp#utils#ExtractTypeInfoFromTokens(a:tokens)
+endfunc
+
+" Convert tokens to string
+function! s:TokensToString(tokens)
+    let result = ''
+    for token in a:tokens
+        let result = result . token.value . ' '
+    endfor
+    return result[:-2]
+endfunc
+
+" Resolve a cast.
+" Resolve a C++ cast
+" @param list of token. tokens must be a list that represents
+" a cast expression (C++ cast) the function does not control
+" if it's a cast or not
+" eg: static_cast<MyClass*>(something)
+" @return type info string
+function! s:ResolveCppCast(tokens)
+    return omni#cpp#utils#ExtractTypeInfoFromTokens(s:ResolveCast(a:tokens, '<', '>'))
+endfunc
+
+" Resolve a cast.
+" Resolve a C cast
+" @param list of token. tokens must be a list that represents
+" a cast expression (C cast) the function does not control
+" if it's a cast or not
+" eg: (MyClass*)something
+" @return type info string
+function! s:ResolveCCast(tokens)
+    return omni#cpp#utils#ExtractTypeInfoFromTokens(s:ResolveCast(a:tokens, '(', ')'))
+endfunc
+
+" Resolve a cast.
+" Resolve a C cast
+" @param list of token. tokens must be a list that represents
+" a cast expression (C cast) the function does not control
+" if it's a cast or not
+" eg: (MyClass*)something
+" @return type tokens
+function! s:ResolveCast(tokens, startChar, endChar)
+    let tokens = omni#cpp#utils#BuildParenthesisGroups(a:tokens)
+
+    " We remove useless parenthesis eg: (((MyClass)))
+    let tokens = omni#cpp#utils#SimplifyParenthesis(tokens)
+
+    let countItem=0
+    let startIndex = -1
+    let endIndex = -1 
+    let i = 0
+    for token in tokens
+        if startIndex==-1
+            if token.value==a:startChar
+                let countItem += 1
+                let startIndex = i
+            endif
+        else
+            if token.value==a:startChar
+                let countItem += 1
+            elseif token.value==a:endChar
+                let countItem -= 1
+            endif
+
+            if countItem==0
+                let endIndex = i
+                break
+            endif
+        endif
+        let i+=1
+    endfor
+
+    return tokens[startIndex+1 : endIndex-1]
+endfunc
+
+" Replacement for build-in function 'searchdecl'
+" It does not require that the upper-level bracket is in the first column.
+" Otherwise it should be equal to 'searchdecl(name, 0, 1)'
+" @param name: name of variable to find declaration for
+function! s:LocalSearchDecl(name)
+
+    if g:OmniCpp_LocalSearchDecl == 0
+        let bUserIgnoreCase = &ignorecase
+
+        " Forcing the noignorecase option
+        " avoid bug when, for example, if we have a declaration like this : "A a;"
+        set noignorecase
+
+        let result = searchdecl(a:name, 0, 1)
+
+        " Restoring user's setting
+        let &ignorecase = bUserIgnoreCase
+
+        return result
+    endif
+
+    let lastpos = getpos('.')
+    let winview = winsaveview()
+    let lastfoldenable = &foldenable
+    let &foldenable = 0
+
+    " We add \C (noignorecase) to 
+    " avoid bug when, for example, if we have a declaration like this : "A a;"
+    let varname = "\\C\\<" . a:name . "\\>"
+
+    " Go to first blank line before begin of highest scope
+    normal 99[{
+    let scopepos = getpos('.')
+    while (line('.') > 1) && (len(split(getline('.'))) > 0)
+        call cursor(line('.')-1, 0)
+    endwhile
+
+    let declpos = [ 0, 0, 0, 0 ]
+    while search(varname, '', scopepos[1]) > 0
+        " Check if we are a string or a comment
+        if omni#cpp#utils#IsCursorInCommentOrString()
+            continue
+        endif
+
+        " Remember match
+        let declpos = getpos('.')
+    endwhile
+    if declpos[1] != 0
+        " We found a match
+        call winrestview(winview)
+        call setpos('.', declpos)
+        let &foldenable = lastfoldenable
+        return 0
+    endif
+
+    while search(varname, '', lastpos[1]) > 0
+        " Check if current scope is ending before variable
+        let old_cur = getpos('.')
+        normal ]}
+        let new_cur = getpos('.')
+        call setpos('.', old_cur)
+        if (new_cur[1] < lastpos[1]) || ((new_cur[1] == lastpos[1]) && (new_cur[2] < lastpos[2]))
+          continue
+        endif
+
+        " Check if we are a string or a comment
+        if omni#cpp#utils#IsCursorInCommentOrString()
+          continue
+        endif
+
+        " We found match
+        call winrestview(winview)
+        call setpos('.', old_cur)
+        let &foldenable = lastfoldenable
+        return 0
+    endwhile
+
+    " No match found.
+    call winrestview(winview)
+    let &foldenable = lastfoldenable
+    return 1
+endfunc
-- 
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