Make ParseSlashCommand find commands anywhere in string and return found boolean

[Copilot]

ParseSlashCommand required commands to start with / and returned errors when not found. Now it searches anywhere in the input string and returns a boolean indicating presence instead of erroring.

Changes

• Function signature: Changed to (taskName string, params map[string]string, found bool, err error) - found boolean positioned before error and after params
• Search behavior: Uses strings.Index() to find / anywhere in input, not just at start
• Argument extraction: Stops at newline (\n or \r) rather than consuming entire string
• Error semantics: found=false when no command present; errors only for malformed syntax (unclosed quotes)

Example

// Before: Required leading slash, returned error if missing
taskName, params, err := ParseSlashCommand("fix-bug")
// err: "slash command must start with '/'"

// After: Finds command anywhere, returns boolean
taskName, params, found, err := ParseSlashCommand("Please /deploy production now")
// taskName="deploy", params={"ARGUMENTS": "production now", "1": "production", "2": "now"}, found=true

_, _, found, _ := ParseSlashCommand("no command here")
// found=false, err=nil

Text before the / and after newlines is ignored as expected.

Test Coverage

Added 6 test cases covering commands embedded in text, with prefixes, and newline handling. All 26 tests pass.

Original prompt

ParseSlashCommand needs some enhancement. It should find the taskname anywhere in the string. Any argument on the same line should be included. It maybe that some prefix and suffix is lost. That is find. It needs to return a boolean if found, if not found, that is no an error.

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[alexec]

@copilot Put found before error and after params.

[Copilot]

@copilot Put found before error and after params.

Done. Updated the signature to (taskName string, params map[string]string, found bool, err error) in commit a79ae68.