Base Library: Class ZSTRING
This library cluster has 46 classes.
ECF: base.ecf
Source code: directory list
An implementation of a memory compact string with the same unicode character range as the base class STRING_32 and conforming to STRING_GENERAL. ZSTRING is an alias for the actual class name EL_ZSTRING. EL_ZSTRING has many additional routines not found in STRING_32, as for example: Python like tuple substitution.
See Articles
- ZSTRING released in Eiffel-Loop 1.3.1
- Introducing class ZSTRING
- ISO-8859 is dead, long live ISO-8859
Benchmarks ZSTRING vs STRING_32
Directory: library/base/text/zstring
[ . ]
EL_ZSTRING
Usually referenced with the alias 'ZSTRING', this string is a memory efficient alternative to using STRING_32. When an application mainly uses characters from the ISO-8859-15 character set, the memory saving can be as much as 70%, while the execution efficiency is roughly the same as for STRING_8. For short strings the saving is much less: about 50%. ISO-8859-15 covers most Western european languages.
Further Information
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codec
EL_SHARED_UTF_8_ZCODEC
Shared utf 8 zcodec
Further Information
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EL_SHARED_ZCODEC_FACTORY
Shared access to frozen class EL_ZCODEC_FACTORY
EL_SHARED_ZSTRING_CODEC
Defines codec to be used by class EL_ZSTRING for encoding characters in area
Further Information
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EL_UTF_8_ZCODEC
Converts to and from UTF-8
EL_ZCODEC
Base class for Latin, Windows and UTF-8 codecs
Further Information
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EL_ZCODEC_FACTORY
Factory for character codecs conforming to EL_ZCODEC
Further Information
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codec/iso
EL_ISO_8859_10_ZCODEC
Codec for ISO_8859_10 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_11_ZCODEC
Codec for ISO_8859_11 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_13_ZCODEC
Codec for ISO_8859_13 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_14_ZCODEC
Codec for ISO_8859_14 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_15_ZCODEC
Codec for ISO_8859_15 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_1_ZCODEC
ISO-8859-1 zcodec
Further Information
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EL_ISO_8859_2_ZCODEC
Codec for ISO_8859_2 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_3_ZCODEC
Codec for ISO_8859_3 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_4_ZCODEC
Codec for ISO_8859_4 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_5_ZCODEC
Codec for ISO_8859_5 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_6_ZCODEC
Codec for ISO_8859_6 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_7_ZCODEC
Codec for ISO_8859_7 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_8_ZCODEC
Codec for ISO_8859_8 automatically generated from decoder.c in VTD-XML source
EL_ISO_8859_9_ZCODEC
Codec for ISO_8859_9 automatically generated from decoder.c in VTD-XML source
codec/windows
EL_WINDOWS_1250_ZCODEC
Codec for WINDOWS_1250 automatically generated from decoder.c in VTD-XML source
EL_WINDOWS_1251_ZCODEC
Codec for WINDOWS_1251 automatically generated from decoder.c in VTD-XML source
EL_WINDOWS_1252_ZCODEC
Codec for WINDOWS_1252 automatically generated from decoder.c in VTD-XML source
EL_WINDOWS_1253_ZCODEC
Codec for WINDOWS_1253 automatically generated from decoder.c in VTD-XML source
EL_WINDOWS_1254_ZCODEC
Codec for WINDOWS_1254 automatically generated from decoder.c in VTD-XML source
EL_WINDOWS_1255_ZCODEC
Codec for WINDOWS_1255 automatically generated from decoder.c in VTD-XML source
EL_WINDOWS_1256_ZCODEC
Codec for WINDOWS_1256 automatically generated from decoder.c in VTD-XML source
EL_WINDOWS_1257_ZCODEC
Codec for WINDOWS_1257 automatically generated from decoder.c in VTD-XML source
EL_WINDOWS_1258_ZCODEC
Codec for WINDOWS_1258 automatically generated from decoder.c in VTD-XML source
implementation
EL_APPENDABLE_ZSTRING
Appendable/Prependable aspects of EL_ZSTRING that use only 8-bit implemenation
EL_CONVERTABLE_ZSTRING
Routines to convert instance of EL_ZSTRING to another type or form
EL_MEASUREABLE_ZSTRING
Measureable aspects of EL_ZSTRING
EL_READABLE_ZSTRING
Read only interface to class EL_ZSTRING
Further Information
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EL_SEARCHABLE_ZSTRING
Searchable aspects of EL_ZSTRING
EL_TRANSFORMABLE_ZSTRING
Implementation routines to transform instance of EL_ZSTRING
EL_UNENCODED_CHARACTERS
Representation of consecutive substrings in a STRING_32 string that could not be encoded using a latin character set. The substring are held in the array unecoded: SPECIAL [CHARACTER_32] Each substring is prececded by two 32 bit characters representing the lower and upper index.
EL_ZSTRING_CHARACTER_8_IMPLEMENTATION
Aspect of EL_ZSTRING as an array of 8-bit characters
EL_ZSTRING_IMPLEMENTATION
Core implementation of EL_ZSTRING using an 8 bit array to sotre characters encodeable by codec, and a compacted array of 32-bit arrays to encode any character not defined by the 8-bit encoding.
support
EL_EXTENDABLE_UNENCODED_CHARACTERS
Extendable unencoded characters
EL_STRING_8
String 8
EL_UNENCODED_CHARACTERS_INDEX
Fast lookup of code in unencoded intervals array
EL_ZCODE_CONVERSION
For use with class EL_ZSTRING which redefines {READABLE_STRING_GENERAL}.code as z_code. A z_code is a hybrid of a Latin-x or Windows-x encoding and a UCS4 encoding. (We only refer to "latin" from here on)
Occassionaly a unicode character might clash with the range 0 .. 255 reserved for latin encodings. To get around this we set the sign bit to 1 to distinguish it. We can do this because the sign bit is unused in UCS4 unicode.
EL_ZSTRING_CONVERTER
Convenience class for converting any string of type READABLE_STRING_GENERAL to type EL_ZSTRING
EL_ZSTRING_SEARCHER
Zstring searcher
EL_ZSTRING_UNESCAPER
Z-code escape table for use with class EL_ZSTRING. See routine escape.
Further Information
Click on class link to see client examples.