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| author | Mike Buland <eichlan@xagasoft.com> | 2012-03-25 20:00:08 +0000 |
|---|---|---|
| committer | Mike Buland <eichlan@xagasoft.com> | 2012-03-25 20:00:08 +0000 |
| commit | 469bbcf0701e1eb8a6670c23145b0da87357e178 (patch) | |
| tree | b5b062a16e46a6c5d3410b4e574cd0cc09057211 /src/stable/tafreader.cpp | |
| parent | ee1b79396076edc4e30aefb285fada03bb45e80d (diff) | |
| download | libbu++-469bbcf0701e1eb8a6670c23145b0da87357e178.tar.gz libbu++-469bbcf0701e1eb8a6670c23145b0da87357e178.tar.bz2 libbu++-469bbcf0701e1eb8a6670c23145b0da87357e178.tar.xz libbu++-469bbcf0701e1eb8a6670c23145b0da87357e178.zip | |
Code is all reorganized. We're about ready to release. I should write up a
little explenation of the arrangement.
Diffstat (limited to 'src/stable/tafreader.cpp')
| -rw-r--r-- | src/stable/tafreader.cpp | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/src/stable/tafreader.cpp b/src/stable/tafreader.cpp new file mode 100644 index 0000000..6708c8c --- /dev/null +++ b/src/stable/tafreader.cpp | |||
| @@ -0,0 +1,252 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (C) 2007-2011 Xagasoft, All rights reserved. | ||
| 3 | * | ||
| 4 | * This file is part of the libbu++ library and is released under the | ||
| 5 | * terms of the license contained in the file LICENSE. | ||
| 6 | */ | ||
| 7 | |||
| 8 | #include "bu/taf.h" | ||
| 9 | #include "bu/string.h" | ||
| 10 | #include "bu/stream.h" | ||
| 11 | |||
| 12 | #include <stdlib.h> | ||
| 13 | |||
| 14 | using namespace Bu; | ||
| 15 | |||
| 16 | Bu::TafReader::TafReader( Bu::Stream &sIn ) : | ||
| 17 | c( 0 ), | ||
| 18 | la( 0 ), | ||
| 19 | sIn( sIn ), | ||
| 20 | iLine( 1 ), iCol( -1 ) | ||
| 21 | { | ||
| 22 | next(); next(); | ||
| 23 | } | ||
| 24 | |||
| 25 | Bu::TafReader::~TafReader() | ||
| 26 | { | ||
| 27 | |||
| 28 | } | ||
| 29 | |||
| 30 | Bu::TafGroup *Bu::TafReader::readGroup() | ||
| 31 | { | ||
| 32 | ws(); | ||
| 33 | if( c != '{' ) | ||
| 34 | throw TafException("%d:%d: Expected '{' got '%c'.", iLine, iCol, c ); | ||
| 35 | next(); | ||
| 36 | ws(); | ||
| 37 | String sName = readStr(); | ||
| 38 | TafGroup *pGroup = new TafGroup( sName ); | ||
| 39 | try | ||
| 40 | { | ||
| 41 | ws(); | ||
| 42 | if( c != ':' ) | ||
| 43 | throw TafException("%d:%d: Expected ':' got '%c'.", | ||
| 44 | iLine, iCol, c ); | ||
| 45 | next(); | ||
| 46 | //printf("Node[%s]:\n", sName.getStr() ); | ||
| 47 | |||
| 48 | groupContent( pGroup ); | ||
| 49 | |||
| 50 | if( c != '}' ) | ||
| 51 | throw TafException("%d:%d: Expected '}' got '%c'.", | ||
| 52 | iLine, iCol, c ); | ||
| 53 | |||
| 54 | //next(); | ||
| 55 | |||
| 56 | return pGroup; | ||
| 57 | } | ||
| 58 | catch(...) | ||
| 59 | { | ||
| 60 | delete pGroup; | ||
| 61 | throw; | ||
| 62 | } | ||
| 63 | } | ||
| 64 | |||
| 65 | void Bu::TafReader::groupContent( Bu::TafGroup *pGroup ) | ||
| 66 | { | ||
| 67 | for(;;) | ||
| 68 | { | ||
| 69 | ws(); | ||
| 70 | if( c == '{' ) | ||
| 71 | { | ||
| 72 | pGroup->addChild( readGroup() ); | ||
| 73 | next(); | ||
| 74 | } | ||
| 75 | else if( c == '}' ) | ||
| 76 | return; | ||
| 77 | else if( c == '/' && la == '*' ) | ||
| 78 | pGroup->addChild( readComment() ); | ||
| 79 | else if( c == '/' && la == '/' ) | ||
| 80 | pGroup->addChild( readComment( true ) ); | ||
| 81 | else if( c == ':' ) | ||
| 82 | throw TafException("%d:%d: Encountered stray ':' in taf stream.", | ||
| 83 | iLine, iCol ); | ||
| 84 | else | ||
| 85 | pGroup->addChild( readProperty() ); | ||
| 86 | } | ||
| 87 | } | ||
| 88 | |||
| 89 | Bu::TafProperty *Bu::TafReader::readProperty() | ||
| 90 | { | ||
| 91 | String sName = readStr(); | ||
| 92 | ws(); | ||
| 93 | if( c != '=' ) | ||
| 94 | { | ||
| 95 | //printf(" %s (true)\n", sName.getStr() ); | ||
| 96 | return new Bu::TafProperty( "", sName ); | ||
| 97 | } | ||
| 98 | next(); | ||
| 99 | String sValue = readStr(); | ||
| 100 | return new Bu::TafProperty( sName, sValue ); | ||
| 101 | //printf(" %s = %s\n", sName.getStr(), sValue.getStr() ); | ||
| 102 | } | ||
| 103 | |||
| 104 | Bu::TafComment *Bu::TafReader::readComment( bool bEOL ) | ||
| 105 | { | ||
| 106 | String sCmnt; | ||
| 107 | next(); | ||
| 108 | if( bEOL ) | ||
| 109 | { | ||
| 110 | for(;;) | ||
| 111 | { | ||
| 112 | next(); | ||
| 113 | if( c == '\n' && la == '\r' ) | ||
| 114 | { | ||
| 115 | next(); next(); | ||
| 116 | break; | ||
| 117 | } | ||
| 118 | else if( c == '\n' || c == '\r' ) | ||
| 119 | { | ||
| 120 | next(); | ||
| 121 | break; | ||
| 122 | } | ||
| 123 | sCmnt += c; | ||
| 124 | } | ||
| 125 | } | ||
| 126 | else | ||
| 127 | { | ||
| 128 | for(;;) | ||
| 129 | { | ||
| 130 | next(); | ||
| 131 | if( c == '*' && la == '/' ) | ||
| 132 | { | ||
| 133 | next(); next(); | ||
| 134 | break; | ||
| 135 | } | ||
| 136 | sCmnt += c; | ||
| 137 | } | ||
| 138 | } | ||
| 139 | |||
| 140 | return new TafComment( sCmnt, bEOL ); | ||
| 141 | } | ||
| 142 | |||
| 143 | Bu::String Bu::TafReader::readStr() | ||
| 144 | { | ||
| 145 | ws(); | ||
| 146 | String s; | ||
| 147 | if( c == '"' ) | ||
| 148 | { | ||
| 149 | next(); | ||
| 150 | for(;;) | ||
| 151 | { | ||
| 152 | if( c == '\\' ) | ||
| 153 | { | ||
| 154 | next(); | ||
| 155 | if( c == 'x' ) | ||
| 156 | { | ||
| 157 | char code[3]={'\0','\0','\0'}; | ||
| 158 | next(); | ||
| 159 | code[0] = c; | ||
| 160 | next(); | ||
| 161 | code[1] = c; | ||
| 162 | c = (unsigned char)strtol( code, NULL, 16 ); | ||
| 163 | } | ||
| 164 | else if( c == '"' ) | ||
| 165 | c = '"'; | ||
| 166 | else if( c == '\\' ) | ||
| 167 | c = '\\'; | ||
| 168 | else if( c == 'n' ) | ||
| 169 | c = '\n'; | ||
| 170 | else if( c == 't' ) | ||
| 171 | c = '\t'; | ||
| 172 | else | ||
| 173 | throw TafException("%d:%d: Invalid escape sequence '\\%c'.", | ||
| 174 | iLine, iCol, c ); | ||
| 175 | } | ||
| 176 | else if( c == '"' ) | ||
| 177 | break; | ||
| 178 | s += c; | ||
| 179 | next(); | ||
| 180 | } | ||
| 181 | next(); | ||
| 182 | } | ||
| 183 | else | ||
| 184 | { | ||
| 185 | for(;;) | ||
| 186 | { | ||
| 187 | if( isws() || c == '}' || c == '{' || c == ':' || c == '=' ) | ||
| 188 | break; | ||
| 189 | s += c; | ||
| 190 | next(); | ||
| 191 | } | ||
| 192 | } | ||
| 193 | |||
| 194 | return s; | ||
| 195 | } | ||
| 196 | |||
| 197 | void Bu::TafReader::ws() | ||
| 198 | { | ||
| 199 | for(;;) | ||
| 200 | { | ||
| 201 | if( !isws() ) | ||
| 202 | return; | ||
| 203 | |||
| 204 | next(); | ||
| 205 | } | ||
| 206 | } | ||
| 207 | |||
| 208 | bool Bu::TafReader::isws() | ||
| 209 | { | ||
| 210 | return (c == ' ' || c == '\t' || c == '\n' || c == '\r'); | ||
| 211 | } | ||
| 212 | |||
| 213 | void Bu::TafReader::next() | ||
| 214 | { | ||
| 215 | if( c == '\n' ) | ||
| 216 | { | ||
| 217 | iLine++; | ||
| 218 | iCol = 1; | ||
| 219 | } | ||
| 220 | else | ||
| 221 | iCol++; | ||
| 222 | if( c == '}' ) | ||
| 223 | { | ||
| 224 | rawread( &c ); | ||
| 225 | if( c != '}' ) | ||
| 226 | rawread( &la ); | ||
| 227 | } | ||
| 228 | else | ||
| 229 | { | ||
| 230 | c = la; | ||
| 231 | if( c != '}' ) | ||
| 232 | rawread( &la ); | ||
| 233 | } | ||
| 234 | } | ||
| 235 | |||
| 236 | void Bu::TafReader::rawread( char *c ) | ||
| 237 | { | ||
| 238 | if( sIn.read( c, 1 ) < 1 ) | ||
| 239 | { | ||
| 240 | if( sIn.isEos() ) | ||
| 241 | { | ||
| 242 | throw TafException("%d:%d: Premature end of stream.", | ||
| 243 | iLine, iCol, c ); | ||
| 244 | } | ||
| 245 | else | ||
| 246 | { | ||
| 247 | throw TafException("%d:%d: No data read, but not end of stream?", | ||
| 248 | iLine, iCol, c ); | ||
| 249 | } | ||
| 250 | } | ||
| 251 | } | ||
| 252 | |||
