Modification History
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Release |
Comments |
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Release 1 |
This Unit first released with ICA11 Information and Communications Technology Training Package version 1.0 |
Unit Descriptor
This unit describes the performance outcomes, skills and knowledge required to use regular expressions for manipulating text and data.
Application of the Unit
Programmers and system administrators apply the skills and knowledge described in this unit. Their main responsibility is to code complex text processing such as search and replace tasks, validate inputs and create regex-based queries.
Licensing/Regulatory Information
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of endorsement but users should confirm requirements with the relevant federal, state or territory authority.
Pre-Requisites
Not applicable.
Employability Skills Information
This unit contains employability skills.
Elements and Performance Criteria Pre-Content
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Element |
Performance Criteria |
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Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
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1. Differentiate the use of regular expressions in programming languages |
1.1 Compare regular expression features among different languages and tools 1.2 Define different regular expression engine types and how they work 1.3 Determine the programming language and tools for writing regular expressions |
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2. Code using regular expressions |
2.1 Use regular expression characters, operators, anchors and quantifiers to match patterns of text 2.2 Write regular expression patterns to search and manipulate text 2.3 Write code to split strings and collect matches 2.4 Validate user input using regular expressions |
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3. Test regular expressions |
3.1 Use test tools to test and validate regular expressions 3.2 Capture results and edit as required |
Required Skills and Knowledge
This section describes the skills and knowledge required for this unit.
Required skills
- analytical skills to:
- evaluate and compare a range of tools and languages
- write complex regular expressions for text processing
- literacy skills to read basic technical data
- problem-solving skills to:
- find best solutions using regular expressions to a wide range of problems
- perform basic debugging and testing skills
- research skills to locate and interrogate complex and varied sources of information
- technical skills to:
- debug applications using basic debugging techniques
- test applications using basic testing techniques
- write code using an integrated development environment (IDE).
Required knowledge
- maths at a basic level
- basic knowledge of:
- coding
- database systems
- object-oriented programming
- open-source development tools
- small-size application development.
Evidence Guide
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
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Overview of assessment |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
Evidence of the ability to:
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Context of and specific resources for assessment |
Assessment must ensure access to:
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Method of assessment |
A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate for this unit:
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Guidance information for assessment |
Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended, where appropriate. Assessment processes and techniques must be culturally appropriate, and suitable to the communication skill level, language, literacy and numeracy capacity of the candidate and the work being performed. Indigenous people and other people from a non-English speaking background may need additional support. In cases where practical assessment is used it should be combined with targeted questioning to assess required knowledge. |
Range Statement
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
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Languages may include: |
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Regular expression engine types may include: |
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Patterns may include: |
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Test tools may include: |
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Unit Sector(s)
Programming and software development
