Module think_tags 

Parser for <think>...</think> tags in model output.

Models like DeepSeek R1, QwQ, and SmolLM3 use <think> tags to wrap chain-of-thought reasoning content. This module provides incremental parsing to extract reasoning content separately from final response content.

Format

<think>This is reasoning content</think>This is final content

Behavior

• Content before <think> goes to content
• Content inside <think>...</think> goes to reasoning_content
• Content after </think> goes to content
• Multiple <think> blocks are concatenated
• At EOS, treat unclosed <think> content as reasoning

Structs

ThinkTagContext

Context for tracking <think>...</think> tag parsing state within a sequence.

Functions

is_think_tag_template

Check if a chat template uses <think>...</think> tags.