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Fixes for sequences of extended control directives

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This commit is contained in:
aothms
2016-01-08 09:17:49 +01:00
parent 0d42a293ad
commit 973fa9ccb5
1 changed files with 18 additions and 5 deletions
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src/ifcparse/IfcCharacterDecoder.cpp
+18 -5
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@@ -47,6 +47,7 @@
#define ENDEXTENDED_0 (1 << 20)
#define FOURTH_SOLIDUS (1 << 21)
#define IGNORED_DIRECTIVE (1 << 22)
#define ENCOUNTERED_HEX (1 << 23)
// FIXME: These probably need to be less forgiving in terms of wrongly defined sequences
#define EXPECTS_ALPHABET(S) (S & FIRST_SOLIDUS)
@@ -64,7 +65,7 @@
#define IS_VALID_ALPHABET_DEFINITION(C) (C >= 0x40 && C <= 0x4A)
#define IS_HEXADECIMAL(C) ((C >= 0x30 && C <= 0x39 ) || (C >= 0x41 && C <= 0x46 ))
#define HEX_TO_INT(C) ((C >= 0x30 && C <= 0x39 ) ? C - 0x30 : (C+10) - 0x41)
#define CLEAR_HEX(C) (C &= ~(HEX(1)&HEX(2)&HEX(3)&HEX(4)&HEX(5)&HEX(6)&HEX(7)&HEX(8)))
#define CLEAR_HEX(C) (C &= ~(HEX(1)|HEX(2)|HEX(3)|HEX(4)|HEX(5)|HEX(6)|HEX(7)|HEX(8)))
using namespace IfcParse;
using namespace IfcWrite;
@@ -155,7 +156,10 @@ IfcCharacterDecoder::operator std::string() {
if ( parse_state & ALPHABET_DEFINITION ||
parse_state & IGNORED_DIRECTIVE ||
parse_state & ENDEXTENDED_0 ) parse_state = hex = hex_count = 0;
else if ( parse_state & HEX(3) ) parse_state += THIRD_SOLIDUS;
else if ( parse_state & ENCOUNTERED_HEX ) {
parse_state += THIRD_SOLIDUS;
parse_state -= ENCOUNTERED_HEX;
}
else parse_state += SECOND_SOLIDUS;
} else if ( current_char == 'X' && EXPECTS_ENDEXTENDED_X(parse_state) ) {
parse_state += ENDEXTENDED_X;
@@ -202,7 +206,10 @@ IfcCharacterDecoder::operator std::string() {
}
#endif
if ( hex_count == 2 ) parse_state = 0;
else CLEAR_HEX(parse_state);
else {
CLEAR_HEX(parse_state);
parse_state += ENCOUNTERED_HEX;
}
hex = hex_count = 0;
}
} else if ( parse_state && !(
@@ -238,7 +245,10 @@ void IfcCharacterDecoder::dryRun() {
if ( parse_state & ALPHABET_DEFINITION ||
parse_state & IGNORED_DIRECTIVE ||
parse_state & ENDEXTENDED_0 ) parse_state = hex_count = 0;
else if ( parse_state & HEX(3) ) parse_state += THIRD_SOLIDUS;
else if ( parse_state & ENCOUNTERED_HEX ) {
parse_state += THIRD_SOLIDUS;
parse_state -= ENCOUNTERED_HEX;
}
else parse_state += SECOND_SOLIDUS;
} else if ( current_char == 'X' && EXPECTS_ENDEXTENDED_X(parse_state) ) {
parse_state += ENDEXTENDED_X;
@@ -264,7 +274,10 @@ void IfcCharacterDecoder::dryRun() {
(hex_count == 4 && !(parse_state & EXTENDED4)) ||
(hex_count == 8) ) {
if ( hex_count == 2 ) parse_state = 0;
else CLEAR_HEX(parse_state);
else {
CLEAR_HEX(parse_state);
parse_state += ENCOUNTERED_HEX;
}
hex_count = 0;
}
} else if ( parse_state && !(