Find a Contiguous Log Marker

Context

The monitoring team stores each event stream as one text line. A marker phrase identifies a notable incident only when its characters appear next to one another in the log. Create a checker that searches the full log for the marker without treating separated characters as a match.

Problem

Given a source log string and a marker string, determine whether the marker occurs as one contiguous segment of the log. Characters must match in order and without gaps. Check candidate starting positions from left to right. While characters match, advance through both strings. If a comparison fails, abandon that candidate and begin from the next source position. Return true only after every marker character has matched; return false if no candidate remains.

Examples

Constraints

• 1 <= len(log) <= 500
• log: non empty
• 1 <= len(marker) <= len(log)
• marker: non empty
• Types: log is str, marker is str; result is bool

Function signature

def contains_log_marker(log: str, marker: str) -> bool

log str

The complete event log to search.

marker str

The contiguous character sequence that must be found in the log.

returns bool

Return true if marker appears contiguously in log, and false otherwise.

Notes

• Characters are compared exactly, including case and punctuation if present.