Module parser 

Statement parser for cqlsh-rs.

Handles multi-line input buffering, semicolon-terminated statement detection, comment stripping, string literal handling, and routing between CQL statements and built-in shell commands.

Key design decisions (from SP4 and SP16 upstream fixes):

• Context-aware tokenization: NO regex preprocessing for comments (PR #150)
• Truly incremental parsing: O(n) total work via scan_offset tracking (PR #151)

Structs

StatementParser

Incremental statement parser.

Enums

InputKind

Classification of a parsed input line.

LexState 🔒

Lexer context states for tracking position within CQL input.

ParseResult

The result of feeding a line to the parser.

Constants

SHELL_COMMANDS 🔒

Built-in shell commands that don’t require a semicolon terminator.

Functions

classify_input

Classify a complete input as a shell command, CQL statement, or empty.

decode_char_at 🔒

Decode the char at byte offset i in s, returning the char and its UTF-8 byte length.

ends_with_apply_batch 🔒

Return true if text ends with the APPLY BATCH token pair.

is_shell_command

Check if the first line of input looks like a shell command.

parse_batch

Parse a complete input string (e.g., from -e or -f batch mode) into individual statements.

starts_with_begin_batch 🔒

Return true if text is the opening of a CQL BATCH block.

strip_comments 🔒

Strip comments from a CQL fragment (used on extracted statements).