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author | Mike Buland <eichlan@xagasoft.com> | 2007-04-03 03:49:53 +0000 |
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committer | Mike Buland <eichlan@xagasoft.com> | 2007-04-03 03:49:53 +0000 |
commit | f4c20290509d7ed3a8fd5304577e7a4cc0b9d974 (patch) | |
tree | 13cdf64f7cf134f397a7165b7a3fe0807e37026b /src/old/tokenstring.cpp | |
parent | 74d4c8cd27334fc7204d5a8773deb3d424565778 (diff) | |
download | libbu++-f4c20290509d7ed3a8fd5304577e7a4cc0b9d974.tar.gz libbu++-f4c20290509d7ed3a8fd5304577e7a4cc0b9d974.tar.bz2 libbu++-f4c20290509d7ed3a8fd5304577e7a4cc0b9d974.tar.xz libbu++-f4c20290509d7ed3a8fd5304577e7a4cc0b9d974.zip |
Ok, no code is left in src, it's all in src/old. We'll gradually move code back
into src as it's fixed and re-org'd. This includes tests, which, I may write a
unit test system into libbu++ just to make my life easier.
Diffstat (limited to 'src/old/tokenstring.cpp')
-rw-r--r-- | src/old/tokenstring.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/old/tokenstring.cpp b/src/old/tokenstring.cpp new file mode 100644 index 0000000..e57ba69 --- /dev/null +++ b/src/old/tokenstring.cpp | |||
@@ -0,0 +1,163 @@ | |||
1 | #include "tokenstring.h" | ||
2 | #include <string.h> | ||
3 | |||
4 | TokenString::TokenString( const char *lpNewTokenString ) | ||
5 | { | ||
6 | lpTokenString = NULL; | ||
7 | if( lpNewTokenString ) | ||
8 | { | ||
9 | parseLine( lpNewTokenString ); | ||
10 | } | ||
11 | } | ||
12 | |||
13 | TokenString::~TokenString() | ||
14 | { | ||
15 | delete[] lpTokenString; | ||
16 | for( int j = 0; j < lToken.getSize(); j++ ) | ||
17 | { | ||
18 | delete[] (((Token *)lToken[j])->lpToken); | ||
19 | delete ((Token *)lToken[j]); | ||
20 | } | ||
21 | } | ||
22 | |||
23 | void TokenString::parseLine( const char *lpNewTokenString ) | ||
24 | { | ||
25 | if( lpTokenString != NULL ) | ||
26 | { | ||
27 | delete[] lpTokenString; | ||
28 | lpTokenString = NULL; | ||
29 | for( int j = 0; j < lToken.getSize(); j++ ) | ||
30 | { | ||
31 | delete[] (((Token *)lToken[j])->lpToken); | ||
32 | delete ((Token *)lToken[j]); | ||
33 | } | ||
34 | lToken.empty(); | ||
35 | } | ||
36 | if( lpNewTokenString == NULL ) | ||
37 | { | ||
38 | lpTokenString = new char[1]; | ||
39 | lpTokenString[0] = '\0'; | ||
40 | lToken.setSize(0); | ||
41 | return; | ||
42 | } | ||
43 | // First order of business, make an internal copy so someone can get it | ||
44 | // if they want to. | ||
45 | int nLen = strlen(lpNewTokenString); | ||
46 | lpTokenString = new char[nLen+1]; | ||
47 | strcpy( lpTokenString, lpNewTokenString ); | ||
48 | |||
49 | // Now we do a preliminary parse. This could be effected by later | ||
50 | // editing and aliasing, but we'll see... | ||
51 | int nTkStart, nTkEnd; | ||
52 | int mode=0; // 0 = startSearch, 1=endSearch | ||
53 | for( int j = 0; j <= nLen; j++ ) | ||
54 | { | ||
55 | if( mode == 0 ) | ||
56 | { | ||
57 | if( lpTokenString[j] != ' ' && | ||
58 | lpTokenString[j] != '\t' ) | ||
59 | { | ||
60 | nTkStart = j; | ||
61 | mode = 1; | ||
62 | } | ||
63 | } | ||
64 | else | ||
65 | { | ||
66 | if( lpTokenString[j] == ' ' || | ||
67 | lpTokenString[j] == '\t' || | ||
68 | lpTokenString[j] == '\0' ) | ||
69 | { | ||
70 | nTkEnd = j-1; | ||
71 | mode = 0; | ||
72 | |||
73 | appendToken( nTkStart, nTkEnd ); | ||
74 | } | ||
75 | } | ||
76 | } | ||
77 | } | ||
78 | |||
79 | void TokenString::appendToken( int nStart, int nEnd ) | ||
80 | { | ||
81 | Token *pToken = new Token; | ||
82 | pToken->lpOrig = &lpTokenString[nStart]; | ||
83 | |||
84 | // nStart and nEnd are inclusive, we must add two for the end, and the null | ||
85 | pToken->lpToken = new char[nEnd-nStart+2]; | ||
86 | memcpy( pToken->lpToken, &lpTokenString[nStart], nEnd-nStart+1 ); | ||
87 | pToken->lpToken[nEnd-nStart+1] = '\0'; | ||
88 | |||
89 | // printf("%s\n", pToken->lpToken ); | ||
90 | lToken.append( pToken ); | ||
91 | } | ||
92 | |||
93 | void TokenString::insertToken( int nStart, int nEnd, char *lpOldOrig, const char *lpNewToken, int nIndex ) | ||
94 | { | ||
95 | Token *pToken = new Token; | ||
96 | pToken->lpOrig = lpOldOrig; | ||
97 | |||
98 | // nStart and nEnd are inclusive, we must add two for the end, and the null | ||
99 | pToken->lpToken = new char[nEnd-nStart+2]; | ||
100 | memcpy( pToken->lpToken, &lpNewToken[nStart], nEnd-nStart+1 ); | ||
101 | pToken->lpToken[nEnd-nStart+1] = '\0'; | ||
102 | |||
103 | lToken.insertBefore( pToken, nIndex ); | ||
104 | } | ||
105 | |||
106 | int TokenString::getNumTokens() | ||
107 | { | ||
108 | return lToken.getSize(); | ||
109 | } | ||
110 | |||
111 | char *TokenString::getToken( int nIndex ) | ||
112 | { | ||
113 | if( nIndex >= lToken.getSize() ) return NULL; | ||
114 | return (char *)(((Token *)lToken[nIndex])->lpToken); | ||
115 | } | ||
116 | |||
117 | char *TokenString::getTokenString( int nIndex ) | ||
118 | { | ||
119 | if( nIndex >= lToken.getSize() ) return NULL; | ||
120 | return (char *)(((Token *)lToken[nIndex])->lpOrig); | ||
121 | } | ||
122 | |||
123 | void TokenString::expandTokenTo( int nIndex, char *lpNewToken ) | ||
124 | { | ||
125 | // First, we delete the token at nIndex, then we keep inserting | ||
126 | // at that position... | ||
127 | // We also have to remember the index to the original string, | ||
128 | // since most of what we're expanding to won't be in the origingal | ||
129 | // we need to keep these indexes updated in order to make other parts | ||
130 | // of the system happy. | ||
131 | char *lpOldOrig = ((Token *)lToken[nIndex])->lpOrig; | ||
132 | delete[] ((Token *)lToken[nIndex])->lpToken; | ||
133 | delete ((Token *)lToken[nIndex]); | ||
134 | lToken.deleteAt( nIndex ); | ||
135 | |||
136 | // We'll do this just like we did above, but instead we'll | ||
137 | // do tricky things when we find tokens... | ||
138 | int nLen = strlen(lpNewToken); | ||
139 | int nTkStart, nTkEnd, nNewIndex=nIndex; | ||
140 | int mode=0; // 0 = startSearch, 1=endSearch | ||
141 | for( int j = 0; j <= nLen; j++ ) | ||
142 | { | ||
143 | if( mode == 0 ) | ||
144 | { | ||
145 | if( lpNewToken[j] != ' ' && lpNewToken[j] != '\t' ) | ||
146 | { | ||
147 | nTkStart = j; | ||
148 | mode = 1; | ||
149 | } | ||
150 | } | ||
151 | else | ||
152 | { | ||
153 | if( lpNewToken[j] == ' ' || lpNewToken[j] == '\t' || lpNewToken[j] == '\0' ) | ||
154 | { | ||
155 | nTkEnd = j-1; | ||
156 | mode = 0; | ||
157 | |||
158 | insertToken( nTkStart, nTkEnd, lpOldOrig, lpNewToken, nNewIndex ); | ||
159 | nNewIndex++; | ||
160 | } | ||
161 | } | ||
162 | } | ||
163 | } | ||