| 701 | } |
| 702 | |
| 703 | void ImageFileImpl::elementNameParse( const ustring &elementName, ustring &prefix, |
| 704 | ustring &localPart, bool allowNumber ) |
| 705 | { |
| 706 | // no checkImageFileOpen(__FILE__, __LINE__, __FUNCTION__) |
| 707 | |
| 708 | //??? check if elementName is good UTF-8? |
| 709 | |
| 710 | size_t len = elementName.length(); |
| 711 | |
| 712 | // Empty name is bad |
| 713 | if ( len == 0 ) |
| 714 | { |
| 715 | throw E57_EXCEPTION2( ErrorBadPathName, "elementName=" + elementName ); |
| 716 | } |
| 717 | |
| 718 | unsigned char c = elementName[0]; |
| 719 | |
| 720 | // If allowing numeric element name, check if first char is digit |
| 721 | if ( allowNumber && '0' <= c && c <= '9' ) |
| 722 | { |
| 723 | // All remaining characters must be digits |
| 724 | for ( size_t i = 1; i < len; i++ ) |
| 725 | { |
| 726 | c = elementName[i]; |
| 727 | |
| 728 | if ( c < '0' || c > '9' ) |
| 729 | { |
| 730 | throw E57_EXCEPTION2( ErrorBadPathName, "elementName=" + elementName ); |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | return; |
| 735 | } |
| 736 | |
| 737 | // If first char is ASCII (< 128), check for legality |
| 738 | // Don't test any part of a multi-byte code point sequence (c >= 128). |
| 739 | // Don't allow ':' as first char. |
| 740 | if ( c < 128 && !( ( 'a' <= c && c <= 'z' ) || ( 'A' <= c && c <= 'Z' ) || c == '_' ) ) |
| 741 | { |
| 742 | throw E57_EXCEPTION2( ErrorBadPathName, "elementName=" + elementName ); |
| 743 | } |
| 744 | |
| 745 | // If each following char is ASCII (<128), check for legality |
| 746 | // Don't test any part of a multi-byte code point sequence (c >= 128). |
| 747 | for ( size_t i = 1; i < len; i++ ) |
| 748 | { |
| 749 | c = elementName[i]; |
| 750 | |
| 751 | if ( c < 128 && !( ( 'a' <= c && c <= 'z' ) || ( 'A' <= c && c <= 'Z' ) || c == '_' || |
| 752 | c == ':' || ( '0' <= c && c <= '9' ) || c == '-' || c == '.' ) ) |
| 753 | { |
| 754 | throw E57_EXCEPTION2( ErrorBadPathName, "elementName=" + elementName ); |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | // Check if has at least one colon, try to split it into prefix & localPart |
| 759 | size_t found = elementName.find_first_of( ':' ); |
| 760 | |