1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski *
3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file
5*b1cdbd2cSJim Jagielski * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file
7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski *
11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski *
13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the
17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski * under the License.
19*b1cdbd2cSJim Jagielski *
20*b1cdbd2cSJim Jagielski *************************************************************/
21*b1cdbd2cSJim Jagielski
22*b1cdbd2cSJim Jagielski #include <precomp.h>
23*b1cdbd2cSJim Jagielski #include <tools/tkpchars.hxx>
24*b1cdbd2cSJim Jagielski
25*b1cdbd2cSJim Jagielski // NOT FULLY DECLARED SERVICES
26*b1cdbd2cSJim Jagielski #include <cosv/bstream.hxx>
27*b1cdbd2cSJim Jagielski #include <cosv/x.hxx>
28*b1cdbd2cSJim Jagielski
29*b1cdbd2cSJim Jagielski
30*b1cdbd2cSJim Jagielski
CharacterSource()31*b1cdbd2cSJim Jagielski CharacterSource::CharacterSource()
32*b1cdbd2cSJim Jagielski : dpSource(new char[2]),
33*b1cdbd2cSJim Jagielski nSourceSize(0),
34*b1cdbd2cSJim Jagielski nCurPos(0),
35*b1cdbd2cSJim Jagielski nLastCut(0),
36*b1cdbd2cSJim Jagielski nLastTokenStart(0),
37*b1cdbd2cSJim Jagielski cCharAtLastCut(0)
38*b1cdbd2cSJim Jagielski {
39*b1cdbd2cSJim Jagielski dpSource[nSourceSize] = NULCH;
40*b1cdbd2cSJim Jagielski dpSource[nSourceSize+1] = NULCH;
41*b1cdbd2cSJim Jagielski }
42*b1cdbd2cSJim Jagielski
~CharacterSource()43*b1cdbd2cSJim Jagielski CharacterSource::~CharacterSource()
44*b1cdbd2cSJim Jagielski {
45*b1cdbd2cSJim Jagielski delete [] dpSource;
46*b1cdbd2cSJim Jagielski }
47*b1cdbd2cSJim Jagielski
48*b1cdbd2cSJim Jagielski void
LoadText(csv::bstream & io_rSource)49*b1cdbd2cSJim Jagielski CharacterSource::LoadText(csv::bstream & io_rSource)
50*b1cdbd2cSJim Jagielski {
51*b1cdbd2cSJim Jagielski if (dpSource != 0)
52*b1cdbd2cSJim Jagielski delete [] dpSource;
53*b1cdbd2cSJim Jagielski
54*b1cdbd2cSJim Jagielski io_rSource.seek(0, csv::end);
55*b1cdbd2cSJim Jagielski nSourceSize = intt(io_rSource.position());
56*b1cdbd2cSJim Jagielski io_rSource.seek(0);
57*b1cdbd2cSJim Jagielski
58*b1cdbd2cSJim Jagielski dpSource = new char[nSourceSize+1];
59*b1cdbd2cSJim Jagielski
60*b1cdbd2cSJim Jagielski intt nCount = (intt) io_rSource.read(dpSource,nSourceSize);
61*b1cdbd2cSJim Jagielski if (nCount != nSourceSize)
62*b1cdbd2cSJim Jagielski throw csv::X_Default("IO-Error: Could not load file completely.");
63*b1cdbd2cSJim Jagielski
64*b1cdbd2cSJim Jagielski dpSource[nSourceSize] = NULCH;
65*b1cdbd2cSJim Jagielski
66*b1cdbd2cSJim Jagielski BeginSource();
67*b1cdbd2cSJim Jagielski }
68*b1cdbd2cSJim Jagielski
69*b1cdbd2cSJim Jagielski /// KORR_FUTURE: So far, this works only when tokens do not cross inserted text boundaries.
70*b1cdbd2cSJim Jagielski void
InsertTextAtCurPos(const char * i_sText2Insert)71*b1cdbd2cSJim Jagielski CharacterSource::InsertTextAtCurPos( const char * i_sText2Insert )
72*b1cdbd2cSJim Jagielski {
73*b1cdbd2cSJim Jagielski if ( i_sText2Insert == 0 ? true : strlen(i_sText2Insert) == 0 )
74*b1cdbd2cSJim Jagielski return;
75*b1cdbd2cSJim Jagielski
76*b1cdbd2cSJim Jagielski aSourcesStack.push( S_SourceState(
77*b1cdbd2cSJim Jagielski dpSource,
78*b1cdbd2cSJim Jagielski nSourceSize,
79*b1cdbd2cSJim Jagielski nCurPos,
80*b1cdbd2cSJim Jagielski nLastCut,
81*b1cdbd2cSJim Jagielski nLastTokenStart,
82*b1cdbd2cSJim Jagielski cCharAtLastCut ) );
83*b1cdbd2cSJim Jagielski
84*b1cdbd2cSJim Jagielski nSourceSize = strlen(i_sText2Insert);
85*b1cdbd2cSJim Jagielski dpSource = new char[nSourceSize+1];
86*b1cdbd2cSJim Jagielski strcpy( dpSource, i_sText2Insert); // SAFE STRCPY (#100211# - checked)
87*b1cdbd2cSJim Jagielski
88*b1cdbd2cSJim Jagielski BeginSource();
89*b1cdbd2cSJim Jagielski }
90*b1cdbd2cSJim Jagielski
91*b1cdbd2cSJim Jagielski const char *
CutToken()92*b1cdbd2cSJim Jagielski CharacterSource::CutToken()
93*b1cdbd2cSJim Jagielski {
94*b1cdbd2cSJim Jagielski dpSource[nLastCut] = cCharAtLastCut;
95*b1cdbd2cSJim Jagielski nLastTokenStart = nLastCut;
96*b1cdbd2cSJim Jagielski nLastCut = CurPos();
97*b1cdbd2cSJim Jagielski cCharAtLastCut = dpSource[nLastCut];
98*b1cdbd2cSJim Jagielski dpSource[nLastCut] = NULCH;
99*b1cdbd2cSJim Jagielski
100*b1cdbd2cSJim Jagielski return &dpSource[nLastTokenStart];
101*b1cdbd2cSJim Jagielski }
102*b1cdbd2cSJim Jagielski
103*b1cdbd2cSJim Jagielski void
BeginSource()104*b1cdbd2cSJim Jagielski CharacterSource::BeginSource()
105*b1cdbd2cSJim Jagielski {
106*b1cdbd2cSJim Jagielski nCurPos = 0;
107*b1cdbd2cSJim Jagielski nLastCut = 0;
108*b1cdbd2cSJim Jagielski nLastTokenStart = 0;
109*b1cdbd2cSJim Jagielski cCharAtLastCut = dpSource[nLastCut];
110*b1cdbd2cSJim Jagielski dpSource[nLastCut] = NULCH;
111*b1cdbd2cSJim Jagielski }
112*b1cdbd2cSJim Jagielski
113*b1cdbd2cSJim Jagielski // KORR_FUTURE: So far, this works only when tokens do not cross inserted text boundaries.
114*b1cdbd2cSJim Jagielski char
MoveOn_OverStack()115*b1cdbd2cSJim Jagielski CharacterSource::MoveOn_OverStack()
116*b1cdbd2cSJim Jagielski {
117*b1cdbd2cSJim Jagielski while ( aSourcesStack.size() > 0 AND nCurPos >= nSourceSize-1 )
118*b1cdbd2cSJim Jagielski {
119*b1cdbd2cSJim Jagielski S_SourceState & aState = aSourcesStack.top();
120*b1cdbd2cSJim Jagielski delete [] dpSource;
121*b1cdbd2cSJim Jagielski
122*b1cdbd2cSJim Jagielski dpSource = aState.dpSource;
123*b1cdbd2cSJim Jagielski nSourceSize = aState.nSourceSize;
124*b1cdbd2cSJim Jagielski nCurPos = aState.nCurPos;
125*b1cdbd2cSJim Jagielski nLastCut = aState.nLastCut;
126*b1cdbd2cSJim Jagielski nLastTokenStart = aState.nLastTokenStart;
127*b1cdbd2cSJim Jagielski cCharAtLastCut = aState.cCharAtLastCut;
128*b1cdbd2cSJim Jagielski
129*b1cdbd2cSJim Jagielski aSourcesStack.pop();
130*b1cdbd2cSJim Jagielski }
131*b1cdbd2cSJim Jagielski
132*b1cdbd2cSJim Jagielski if ( nLastCut < nCurPos )
133*b1cdbd2cSJim Jagielski CutToken();
134*b1cdbd2cSJim Jagielski
135*b1cdbd2cSJim Jagielski return CurChar();
136*b1cdbd2cSJim Jagielski }
137*b1cdbd2cSJim Jagielski
138*b1cdbd2cSJim Jagielski CharacterSource::
S_SourceState(DYN char * dpSource_,intt nSourceSize_,intt nCurPos_,intt nLastCut_,intt nLastTokenStart_,char cCharAtLastCut_)139*b1cdbd2cSJim Jagielski S_SourceState::S_SourceState( DYN char * dpSource_,
140*b1cdbd2cSJim Jagielski intt nSourceSize_,
141*b1cdbd2cSJim Jagielski intt nCurPos_,
142*b1cdbd2cSJim Jagielski intt nLastCut_,
143*b1cdbd2cSJim Jagielski intt nLastTokenStart_,
144*b1cdbd2cSJim Jagielski char cCharAtLastCut_ )
145*b1cdbd2cSJim Jagielski : dpSource(dpSource_),
146*b1cdbd2cSJim Jagielski nSourceSize(nSourceSize_),
147*b1cdbd2cSJim Jagielski nCurPos(nCurPos_),
148*b1cdbd2cSJim Jagielski nLastCut(nLastCut_),
149*b1cdbd2cSJim Jagielski nLastTokenStart(nLastTokenStart_),
150*b1cdbd2cSJim Jagielski cCharAtLastCut(cCharAtLastCut_)
151*b1cdbd2cSJim Jagielski {
152*b1cdbd2cSJim Jagielski }
153*b1cdbd2cSJim Jagielski
154