Disallow Configured Custom Regex Patterns

WarningAnti-Patterns & Bad Practices#EC NO_CUSTOM_PATTERNRemote Enabled

Overview

Disallow configured custom regex patterns.

ATC Finding Message: Source code matches forbidden custom regex pattern

Rationale

Enterprise coding standards often require banning specific placeholder comments (such as TODO, FIXME, XXX), temporary variable patterns (such as TMP_* or DEBUG_*), sensitive keywords, or prohibited terminology. This check inspects all tokens against a configurable table of regular expressions, reporting any prohibited matches.

Non-Compliant

" Flagged when 'TODO' is configured in PATTERNS
DATA lv_todo_item TYPE i.

Compliant

DATA lv_clean_item TYPE i.

Configuration & Thresholds

This check can be fine-tuned directly in the ATC Check Variant Editor (CHKV) in Eclipse ADT:

Parameter Name	Data Type	Default Value	Description & Guidance
PATTERN	String	TODO|FIXME|XXX	Regular expression pattern to disallow (defaults to TODO|FIXME|XXX)

Suppression

To suppress findings for this rule, append the pseudo-comment to the statement:

" Standard pseudo-comment:
... "#EC NO_CUSTOM_PATTERN

" SAP CI_ prefix format:
... "#EC CI_NO_CUSTOM_PATTERN

Related Rules

• Avoid Using ABAP Keywords as Identifier Names — #EC NO_KEYWORD_NAME
• Avoid Hardcoding System & Tenant Environment Checks (sy-sysid, sy-mandt) — #EC NO_HARDCODED_ENV
• Avoid Dead Code with Constant Conditions — #EC NO_DEAD_CODE

Technical Details

• Native ATC Class: ZCL_SKYLINT_NO_CUSTOM_PATTERN
• Implementation File: zcl_skylint_no_custom_pattern.clas.abap