Text Library: Evolicity Text Substitution Engine
This library has 56 classes.
ECF: evolicity.ecf
Source code: directory list
Evolicity is a text substitution language that was inspired by the Velocity text substitution language for Java. Evolicity provides a way to merge the data from Eiffel objects into a text template. The template can be either supplied externally or hard-coded into an Eiffel class. The language includes, substitution variables, conditional statements and loops. Substitution variables have a BASH like syntax. Conditionals and loops have an Eiffel like syntax.
The text of this web site was generated by the Eiffel-view repository publisher (See class EIFFEL_VIEW_APP) using the following combination of Evolicity templates:
- doc-config/main-template.html.evol
- doc-config/site-map-content.html.evol
- doc-config/directory-tree-content.html.evol
- doc-config/eiffel-source-code.html.evol
To make an Eiffel class serializable with Evolicity you inherit from class EVOLICITY_SERIALIZEABLE. Read the class notes for details on how to use. You can also access the substitution engine directly from the shared instance in class EVOLICITY_SHARED_TEMPLATES
Features
- Templates are compiled to an intermediate byte code stored in .evc files. This saves time consuming lexing operations on large templates.
- Has a class EVOLICITY_CACHEABLE_SERIALIZEABLE for caching the substituted output. Useful for generating pages on a web-server.
Syntax Documentation
See class EVOLICITY_SHARED_TEMPLATES
Directory: library/text/template/evolicity
[ . ]
EVOLICITY_COMPILER
Evolicity compiler
EVOLICITY_FILE_LEXER
Evolicity file lexer
EVOLICITY_SHARED_TEMPLATES
Provides global access to the Evolicity template substitution engine.
The templating substitution language was named "Evolicity" as a portmanteau of "Evolve" and "Felicity" which is also a partial anagram of "Velocity" the Apache project which inspired it. It also bows to an established tradition of naming Eiffel orientated projects starting with the letter 'E'.
Further Information
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EVOLICITY_TEMPLATES
Top level class for Evolicity accessible via class EVOLICITY_SHARED_TEMPLATES
The templating substitution language was named Evolicity as a portmanteau of "Evolve" and "Felicity" which is also a partial anagram of "Velocity" the Apache project which inspired it. It also bows to an established tradition of naming Eiffel orientated projects starting with the letter 'E'.
context
EVOLICITY_CONTEXT
Evolicity context
Further Information
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EVOLICITY_CONTEXT_IMP
A createable Evolicity context where you add variables in the following ways:
- from a table of strings using make_from_string_table
- from a table of referenceable object_table using make_from_object_table
- Calling put_variable or put_integer
Further Information
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EVOLICITY_EIFFEL_CONTEXT
Evolicity eiffel context
Further Information
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EVOLICITY_REFLECTIVE_EIFFEL_CONTEXT
Evolicity Eiffel context with attribute field values available available by reflection
Further Information
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EVOLICITY_TUPLE_CONTEXT
Evolicity tuple context
Further Information
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directives
EVOLICITY_ACROSS_DIRECTIVE
Implements an across loop imitating Eiffel syntax as alternative to foreach syntax
EVOLICITY_COMPILED_TEMPLATE
Evolicity compiled template
EVOLICITY_COMPOUND_DIRECTIVE
Evolicity compound directive
EVOLICITY_DIRECTIVE
Evolicity directive
EVOLICITY_EVALUATE_DIRECTIVE
Evolicity evaluate directive
EVOLICITY_FOREACH_DIRECTIVE
Implemention of iteration of a container conforming to ITERABLE [G]
Further Information
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EVOLICITY_FREE_TEXT_DIRECTIVE
Evolicity free text directive
EVOLICITY_IF_ELSE_DIRECTIVE
Evolicity if else directive
EVOLICITY_INCLUDE_DIRECTIVE
Evolicity include directive
EVOLICITY_NESTED_TEMPLATE_DIRECTIVE
Evolicity nested template directive
EVOLICITY_VARIABLE_SUBST_DIRECTIVE
Evolicity variable subst directive
expressions
EVOLICITY_COMPARABLE
Evolicity comparable
EVOLICITY_COMPARABLE_VARIABLE
Evolicity comparable variable
EVOLICITY_DOUBLE_COMPARABLE
Evolicity double comparable
EVOLICITY_EXPRESSION
Evolicity expression
EVOLICITY_INTEGER_64_COMPARABLE
Evolicity integer 64 comparable
EVOLICITY_NUMERIC_EXPRESSION
Evolicity numeric expression
EVOLICITY_REFERENCE_EXPRESSION
Evolicity reference expression
expressions/boolean
EVOLICITY_BOOLEAN_AND_EXPRESSION
Evolicity boolean and expression
EVOLICITY_BOOLEAN_CONJUNCTION_EXPRESSION
Evolicity boolean conjunction expression
EVOLICITY_BOOLEAN_EXPRESSION
Evolicity boolean expression
EVOLICITY_BOOLEAN_NOT_EXPRESSION
Evolicity boolean not expression
EVOLICITY_BOOLEAN_OR_EXPRESSION
Evolicity boolean or expression
EVOLICITY_BOOLEAN_REFERENCE_EXPRESSION
Evolicity boolean reference expression
expressions/comparison
EVOLICITY_COMPARISON
Evolicity comparison
EVOLICITY_EQUAL_TO_COMPARISON
Evolicity equal to comparison
EVOLICITY_GREATER_THAN_COMPARISON
Evolicity greater than comparison
EVOLICITY_LESS_THAN_COMPARISON
Evolicity less than comparison
serialization
EVOLICITY_CACHEABLE_SERIALIZEABLE
Caches the output of as_text for either EVOLICITY_SERIALIZEABLE_AS_STRING_8 or EVOLICITY_SERIALIZEABLE_AS_ZSTRING
EVOLICITY_REFLECTIVE_SERIALIZEABLE
Reflective Evolicity serializeable context
Further Information
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EVOLICITY_SERIALIZEABLE
Objects conforming to this class can be serialized as text files using an Evolicity template. A template contains a mixture of literal text and Evolicity code that outputs data from Eiffel objects. The template can be an either an external file or hard coded in the class by implementing the function template: READABLE_STRING_GENERAL.
Further Information
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EVOLICITY_SERIALIZEABLE_AS_STRING_8
Object that is serializeable to string of type STRING_8
EVOLICITY_SERIALIZEABLE_AS_STRING_GENERAL
Object that is serializeable to string of type like once_medium.text
EVOLICITY_SERIALIZEABLE_AS_XML
Evolicity serializeable as xml
Further Information
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EVOLICITY_SERIALIZEABLE_AS_ZSTRING
Object that is serializeable to string of type ZSTRING
Further Information
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EVOLICITY_SERIALIZEABLE_TEXT_VALUE
Evolicity serializeable text value
Further Information
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support
EVOLICITY_CLIENT
Provide access to internal Evolicity features
EVOLICITY_FUNCTION_REFERENCE
Evolicity function reference
EVOLICITY_FUNCTION_TABLE
Evolicity object table
EVOLICITY_LOCALIZED_VARIABLES
Helper class to translate variable text-values which have a localization translation id of the form "{evol.<variable-name>}" where $<variable-name> corresponds to a template substitution variable.
Variable_translation_keys returns all localization identifiers which match that pattern.
translated_variables_tables can be merged with getter_function_table in an Evolicity context.
EVOLICITY_PARSE_ACTIONS
Evolicity parse actions
EVOLICITY_REFLECTIVE_XML_CONTEXT
Evolicity XML escaped context
Further Information
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EVOLICITY_SHARED_TOKEN_ENUM
Shared instance of EVOLICITY_TOKEN_ENUM
EVOLICITY_TEMPLATE_STACK_TABLE
Stacks of templates to enable use of recursive templates
EVOLICITY_TOKEN_ENUM
Parser keyword and symbol tokens
EVOLICITY_VARIABLE_REFERENCE
Evolicity variable reference
Further Information
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EVOLICITY_XML_VALUE
Evolicity xml value
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