| 1 | # Copyright (C) 2025 AIDC-AI |
| 2 | # |
| 3 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | # you may not use this file except in compliance with the License. |
| 5 | # You may obtain a copy of the License at |
| 6 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 7 | # Unless required by applicable law or agreed to in writing, software |
| 8 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 9 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 10 | # See the License for the specific language governing permissions and |
| 11 | # limitations under the License. |
| 12 | |
| 13 | """ |
| 14 | Prompt helper utilities |
| 15 | |
| 16 | Simple utilities for building prompts with optional prefixes. |
| 17 | """ |
| 18 | |
| 19 | |
| 20 | def build_image_prompt(prompt: str, prefix: str = "") -> str: |
| 21 | """ |
| 22 | Build final image prompt with optional prefix |
| 23 | |
| 24 | Args: |
| 25 | prompt: User's raw prompt |
| 26 | prefix: Optional prefix to add before the prompt |
| 27 | |
| 28 | Returns: |
| 29 | Final prompt with prefix applied (if provided) |
| 30 | |
| 31 | Examples: |
| 32 | >>> build_image_prompt("a cat", "") |
| 33 | 'a cat' |
| 34 | |
| 35 | >>> build_image_prompt("a cat", "anime style") |
| 36 | 'anime style, a cat' |
| 37 | |
| 38 | >>> build_image_prompt("a cat", " anime style ") |
| 39 | 'anime style, a cat' |
| 40 | """ |
| 41 | prefix = prefix.strip() if prefix else "" |
| 42 | prompt = prompt.strip() if prompt else "" |
| 43 | |
| 44 | if prefix and prompt: |
| 45 | return f"{prefix}, {prompt}" |
| 46 | elif prefix: |
| 47 | return prefix |
| 48 | else: |
| 49 | return prompt |
| 50 | |
| 51 |